{
unsigned long dw_cfi_reg_num;
long int dw_cfi_offset;
- char *dw_cfi_addr;
+ const char *dw_cfi_addr;
+ struct dw_loc_descr_struct *dw_cfi_loc;
}
dw_cfi_oprnd;
}
dw_cfi_node;
+/* This is how we define the location of the CFA. We use to handle it
+ as REG + OFFSET all the time, but now it can be more complex.
+ It can now be either REG + CFA_OFFSET or *(REG + BASE_OFFSET) + CFA_OFFSET.
+ Instead of passing around REG and OFFSET, we pass a copy
+ of this structure. */
+typedef struct cfa_loc
+{
+ unsigned long reg;
+ long offset;
+ long base_offset;
+ int indirect; /* 1 if CFA is accessed via a dereference. */
+} dw_cfa_location;
+
/* All call frame descriptions (FDE's) in the GCC generated DWARF
refer to a single Common Information Entry (CIE), defined at
the beginning of the .debug_frame section. This used of a single
typedef struct dw_fde_struct
{
- char *dw_fde_begin;
- char *dw_fde_current_label;
- char *dw_fde_end;
+ const char *dw_fde_begin;
+ const char *dw_fde_current_label;
+ const char *dw_fde_end;
dw_cfi_ref dw_fde_cfi;
+ int nothrow;
}
dw_fde_node;
#ifndef CHAR_TYPE_SIZE
#define CHAR_TYPE_SIZE BITS_PER_UNIT
#endif
+
+/* The size of the target's pointer type. */
#ifndef PTR_SIZE
#define PTR_SIZE (POINTER_SIZE / BITS_PER_UNIT)
#endif
+/* The size of addresses as they appear in the Dwarf 2 data.
+ Some architectures use word addresses to refer to code locations,
+ but Dwarf 2 info always uses byte addresses. On such machines,
+ Dwarf 2 addresses need to be larger than the architecture's
+ pointers. */
+#ifndef DWARF2_ADDR_SIZE
+#define DWARF2_ADDR_SIZE (POINTER_SIZE / BITS_PER_UNIT)
+#endif
+
/* The size in bytes of a DWARF field indicating an offset or length
- relative to a debug info section, specified to be 4 bytes in the DWARF-2
- specification. The SGI/MIPS ABI defines it to be the same as PTR_SIZE. */
+ relative to a debug info section, specified to be 4 bytes in the
+ DWARF-2 specification. The SGI/MIPS ABI defines it to be the same
+ as PTR_SIZE. */
#ifndef DWARF_OFFSET_SIZE
#define DWARF_OFFSET_SIZE 4
/* Round SIZE up to the nearest BOUNDARY. */
#define DWARF_ROUND(SIZE,BOUNDARY) \
- (((SIZE) + (BOUNDARY) - 1) & ~((BOUNDARY) - 1))
+ ((((SIZE) + (BOUNDARY) - 1) / (BOUNDARY)) * (BOUNDARY))
/* Offsets recorded in opcodes are a multiple of this alignment factor. */
#ifdef STACK_GROWS_DOWNWARD
-#define DWARF_CIE_DATA_ALIGNMENT (-UNITS_PER_WORD)
+#define DWARF_CIE_DATA_ALIGNMENT (-((int) UNITS_PER_WORD))
#else
-#define DWARF_CIE_DATA_ALIGNMENT UNITS_PER_WORD
+#define DWARF_CIE_DATA_ALIGNMENT ((int) UNITS_PER_WORD)
#endif
/* A pointer to the base of a table that contains frame description
static unsigned long size_of_sleb128 PARAMS ((long));
static void output_uleb128 PARAMS ((unsigned long));
static void output_sleb128 PARAMS ((long));
-static void add_fde_cfi PARAMS ((char *, dw_cfi_ref));
-static void lookup_cfa_1 PARAMS ((dw_cfi_ref, unsigned long *,
- long *));
-static void lookup_cfa PARAMS ((unsigned long *, long *));
-static void reg_save PARAMS ((char *, unsigned, unsigned,
- long));
+static void add_fde_cfi PARAMS ((const char *, dw_cfi_ref));
+static void lookup_cfa_1 PARAMS ((dw_cfi_ref, dw_cfa_location *));
+static void lookup_cfa PARAMS ((dw_cfa_location *));
+static void reg_save PARAMS ((const char *, unsigned,
+ unsigned, long));
static void initial_return_save PARAMS ((rtx));
static void output_cfi PARAMS ((dw_cfi_ref, dw_fde_ref));
static void output_call_frame_info PARAMS ((int));
-static unsigned reg_number PARAMS ((rtx));
static void dwarf2out_stack_adjust PARAMS ((rtx));
-static void dwarf2out_frame_debug_expr PARAMS ((rtx, char *));
+static void dwarf2out_frame_debug_expr PARAMS ((rtx, const char *));
+
+/* Support for complex CFA locations. */
+static void output_cfa_loc PARAMS ((dw_cfi_ref));
+static void get_cfa_from_loc_descr PARAMS ((dw_cfa_location *,
+ struct dw_loc_descr_struct *));
+static struct dw_loc_descr_struct *build_cfa_loc
+ PARAMS ((dw_cfa_location *));
+static void def_cfa_1 PARAMS ((const char *, dw_cfa_location *));
/* Definitions of defaults for assembler-dependent names of various
pseudo-ops and section names.
#endif
#ifndef UNALIGNED_WORD_ASM_OP
-#define UNALIGNED_WORD_ASM_OP \
- (PTR_SIZE == 8 ? UNALIGNED_DOUBLE_INT_ASM_OP : UNALIGNED_INT_ASM_OP)
+#define UNALIGNED_WORD_ASM_OP \
+ ((DWARF2_ADDR_SIZE) == 8 ? UNALIGNED_DOUBLE_INT_ASM_OP \
+ : (DWARF2_ADDR_SIZE) == 2 ? UNALIGNED_SHORT_ASM_OP \
+ : UNALIGNED_INT_ASM_OP)
#endif
#ifndef ASM_OUTPUT_DWARF_DELTA2
#ifndef ASM_OUTPUT_DWARF_ADDR_CONST
#define ASM_OUTPUT_DWARF_ADDR_CONST(FILE,RTX) \
do { \
- fprintf ((FILE), "\t%s\t", UNALIGNED_INT_ASM_OP); \
+ fprintf ((FILE), "\t%s\t", UNALIGNED_WORD_ASM_OP); \
output_addr_const ((FILE), (RTX)); \
- fputc ('\n', (FILE)); \
} while (0)
#endif
fprintf ((FILE), "\t%s\t0x%x", UNALIGNED_INT_ASM_OP, (unsigned) (VALUE))
#endif
+#ifndef ASM_OUTPUT_DWARF_DATA8
+#define ASM_OUTPUT_DWARF_DATA8(FILE,VALUE) \
+ fprintf ((FILE), "\t%s\t0x%lx", UNALIGNED_DOUBLE_INT_ASM_OP, \
+ (unsigned long) (VALUE))
+#endif
+
#ifndef ASM_OUTPUT_DWARF_DATA
#define ASM_OUTPUT_DWARF_DATA(FILE,VALUE) \
fprintf ((FILE), "\t%s\t0x%lx", UNALIGNED_OFFSET_ASM_OP, \
(unsigned long) (VALUE))
#endif
-#ifndef ASM_OUTPUT_DWARF_DATA8
-#define ASM_OUTPUT_DWARF_DATA8(FILE,HIGH_VALUE,LOW_VALUE) \
+#ifndef ASM_OUTPUT_DWARF_CONST_DOUBLE
+#define ASM_OUTPUT_DWARF_CONST_DOUBLE(FILE,HIGH_VALUE,LOW_VALUE) \
do { \
if (WORDS_BIG_ENDIAN) \
{ \
/* We don't have unaligned support, let's hope the normal output works for
.debug_frame. */
+#ifndef ASM_OUTPUT_DWARF_ADDR
#define ASM_OUTPUT_DWARF_ADDR(FILE,LABEL) \
- assemble_integer (gen_rtx_SYMBOL_REF (Pmode, LABEL), PTR_SIZE, 1)
+ assemble_integer (gen_rtx_SYMBOL_REF (Pmode, LABEL), DWARF2_ADDR_SIZE, 1)
+#endif
+
+#ifndef ASM_OUTPUT_DWARF_ADDR_CONST
+#define ASM_OUTPUT_DWARF_ADDR_CONST(FILE,RTX) ASM_OUTPUT_DWARF_ADDR (FILE,RTX)
+#endif
+#ifndef ASM_OUTPUT_DWARF_OFFSET4
#define ASM_OUTPUT_DWARF_OFFSET4(FILE,LABEL) \
assemble_integer (gen_rtx_SYMBOL_REF (SImode, LABEL), 4, 1)
+#endif
+#ifndef ASM_OUTPUT_DWARF_OFFSET
#define ASM_OUTPUT_DWARF_OFFSET(FILE,LABEL) \
assemble_integer (gen_rtx_SYMBOL_REF (SImode, LABEL), 4, 1)
+#endif
+#ifndef ASM_OUTPUT_DWARF_DELTA2
#define ASM_OUTPUT_DWARF_DELTA2(FILE,LABEL1,LABEL2) \
assemble_integer (gen_rtx_MINUS (HImode, \
gen_rtx_SYMBOL_REF (Pmode, LABEL1), \
gen_rtx_SYMBOL_REF (Pmode, LABEL2)), \
2, 1)
+#endif
+#ifndef ASM_OUTPUT_DWARF_DELTA4
#define ASM_OUTPUT_DWARF_DELTA4(FILE,LABEL1,LABEL2) \
assemble_integer (gen_rtx_MINUS (SImode, \
gen_rtx_SYMBOL_REF (Pmode, LABEL1), \
gen_rtx_SYMBOL_REF (Pmode, LABEL2)), \
4, 1)
+#endif
+#ifndef ASM_OUTPUT_DWARF_ADDR_DELTA
#define ASM_OUTPUT_DWARF_ADDR_DELTA(FILE,LABEL1,LABEL2) \
assemble_integer (gen_rtx_MINUS (Pmode, \
gen_rtx_SYMBOL_REF (Pmode, LABEL1), \
gen_rtx_SYMBOL_REF (Pmode, LABEL2)), \
- PTR_SIZE, 1)
+ DWARF2_ADDR_SIZE, 1)
+#endif
+#ifndef ASM_OUTPUT_DWARF_DELTA
#define ASM_OUTPUT_DWARF_DELTA(FILE,LABEL1,LABEL2) \
ASM_OUTPUT_DWARF_DELTA4 (FILE,LABEL1,LABEL2)
+#endif
+
+#ifndef ASM_OUTPUT_DWARF_DATA2
+#define ASM_OUTPUT_DWARF_DATA2(FILE,VALUE) \
+ assemble_integer (GEN_INT (VALUE), 2, 1)
+#endif
+#ifndef ASM_OUTPUT_DWARF_DATA4
#define ASM_OUTPUT_DWARF_DATA4(FILE,VALUE) \
assemble_integer (GEN_INT (VALUE), 4, 1)
+#endif
#endif /* UNALIGNED_INT_ASM_OP */
return stripped;
}
-/* Return the register number described by a given RTL node. */
-
-static unsigned
-reg_number (rtl)
- register rtx rtl;
-{
- register unsigned regno = REGNO (rtl);
-
- if (regno >= DWARF_FRAME_REGISTERS)
- {
- warning ("internal regno botch: regno = %d\n", regno);
- regno = 0;
- }
-
- regno = DBX_REGISTER_NUMBER (regno);
- return regno;
-}
-
/* Generate code to initialize the register size table. */
void
for (i = 0; i < DWARF_FRAME_REGISTERS; ++i)
{
- int offset = i * GET_MODE_SIZE (mode);
+ int offset = DWARF_FRAME_REGNUM (i) * GET_MODE_SIZE (mode);
int size = GET_MODE_SIZE (reg_raw_mode[i]);
+ if (offset < 0)
+ continue;
+
emit_move_insn (change_address (mem, mode,
plus_constant (addr, offset)),
GEN_INT (size));
return "DW_CFA_def_cfa_register";
case DW_CFA_def_cfa_offset:
return "DW_CFA_def_cfa_offset";
+ case DW_CFA_def_cfa_expression:
+ return "DW_CFA_def_cfa_expression";
/* SGI/MIPS specific */
case DW_CFA_MIPS_advance_loc8:
static void
add_fde_cfi (label, cfi)
- register char *label;
+ register const char *label;
register dw_cfi_ref cfi;
{
if (label)
/* Subroutine of lookup_cfa. */
static inline void
-lookup_cfa_1 (cfi, regp, offsetp)
+lookup_cfa_1 (cfi, loc)
register dw_cfi_ref cfi;
- register unsigned long *regp;
- register long *offsetp;
+ register dw_cfa_location *loc;
{
switch (cfi->dw_cfi_opc)
{
case DW_CFA_def_cfa_offset:
- *offsetp = cfi->dw_cfi_oprnd1.dw_cfi_offset;
+ loc->offset = cfi->dw_cfi_oprnd1.dw_cfi_offset;
break;
case DW_CFA_def_cfa_register:
- *regp = cfi->dw_cfi_oprnd1.dw_cfi_reg_num;
+ loc->reg = cfi->dw_cfi_oprnd1.dw_cfi_reg_num;
break;
case DW_CFA_def_cfa:
- *regp = cfi->dw_cfi_oprnd1.dw_cfi_reg_num;
- *offsetp = cfi->dw_cfi_oprnd2.dw_cfi_offset;
+ loc->reg = cfi->dw_cfi_oprnd1.dw_cfi_reg_num;
+ loc->offset = cfi->dw_cfi_oprnd2.dw_cfi_offset;
+ break;
+ case DW_CFA_def_cfa_expression:
+ get_cfa_from_loc_descr (loc, cfi->dw_cfi_oprnd1.dw_cfi_loc);
break;
default:
break;
/* Find the previous value for the CFA. */
static void
-lookup_cfa (regp, offsetp)
- register unsigned long *regp;
- register long *offsetp;
+lookup_cfa (loc)
+ register dw_cfa_location *loc;
{
register dw_cfi_ref cfi;
- *regp = (unsigned long) -1;
- *offsetp = 0;
+ loc->reg = (unsigned long) -1;
+ loc->offset = 0;
+ loc->indirect = 0;
+ loc->base_offset = 0;
for (cfi = cie_cfi_head; cfi; cfi = cfi->dw_cfi_next)
- lookup_cfa_1 (cfi, regp, offsetp);
+ lookup_cfa_1 (cfi, loc);
if (fde_table_in_use)
{
register dw_fde_ref fde = &fde_table[fde_table_in_use - 1];
for (cfi = fde->dw_fde_cfi; cfi; cfi = cfi->dw_cfi_next)
- lookup_cfa_1 (cfi, regp, offsetp);
+ lookup_cfa_1 (cfi, loc);
}
}
/* The current rule for calculating the DWARF2 canonical frame address. */
-static unsigned long cfa_reg;
-static long cfa_offset;
+dw_cfa_location cfa;
/* The register used for saving registers to the stack, and its offset
from the CFA. */
-static unsigned cfa_store_reg;
-static long cfa_store_offset;
+dw_cfa_location cfa_store;
/* The running total of the size of arguments pushed onto the stack. */
static long args_size;
void
dwarf2out_def_cfa (label, reg, offset)
- register char *label;
- register unsigned reg;
- register long offset;
+ register const char *label;
+ unsigned reg;
+ long offset;
+{
+ dw_cfa_location loc;
+ loc.indirect = 0;
+ loc.base_offset = 0;
+ loc.reg = reg;
+ loc.offset = offset;
+ def_cfa_1 (label, &loc);
+}
+
+/* This routine does the actual work. The CFA is now calculated from
+ the dw_cfa_location structure. */
+static void
+def_cfa_1 (label, loc_p)
+ register const char *label;
+ dw_cfa_location *loc_p;
{
register dw_cfi_ref cfi;
- unsigned long old_reg;
- long old_offset;
+ dw_cfa_location old_cfa, loc;
- cfa_reg = reg;
- cfa_offset = offset;
- if (cfa_store_reg == reg)
- cfa_store_offset = offset;
+ cfa = *loc_p;
+ loc = *loc_p;
- reg = DWARF_FRAME_REGNUM (reg);
- lookup_cfa (&old_reg, &old_offset);
+ if (cfa_store.reg == loc.reg && loc.indirect == 0)
+ cfa_store.offset = loc.offset;
- if (reg == old_reg && offset == old_offset)
- return;
+ loc.reg = DWARF_FRAME_REGNUM (loc.reg);
+ lookup_cfa (&old_cfa);
+
+ if (loc.reg == old_cfa.reg && loc.offset == old_cfa.offset &&
+ loc.indirect == old_cfa.indirect)
+ {
+ if (loc.indirect == 0)
+ return;
+ else
+ if (loc.base_offset == old_cfa.base_offset)
+ return;
+ }
cfi = new_cfi ();
- if (reg == old_reg)
+ if (loc.reg == old_cfa.reg && loc.indirect == old_cfa.indirect)
{
cfi->dw_cfi_opc = DW_CFA_def_cfa_offset;
- cfi->dw_cfi_oprnd1.dw_cfi_offset = offset;
+ cfi->dw_cfi_oprnd1.dw_cfi_offset = loc.offset;
}
#ifndef MIPS_DEBUGGING_INFO /* SGI dbx thinks this means no offset. */
- else if (offset == old_offset && old_reg != (unsigned long) -1)
+ else if (loc.offset == old_cfa.offset && old_cfa.reg != (unsigned long) -1
+ && loc.indirect == old_cfa.indirect)
{
cfi->dw_cfi_opc = DW_CFA_def_cfa_register;
- cfi->dw_cfi_oprnd1.dw_cfi_reg_num = reg;
+ cfi->dw_cfi_oprnd1.dw_cfi_reg_num = loc.reg;
}
#endif
- else
+ else if (loc.indirect == 0)
{
cfi->dw_cfi_opc = DW_CFA_def_cfa;
- cfi->dw_cfi_oprnd1.dw_cfi_reg_num = reg;
- cfi->dw_cfi_oprnd2.dw_cfi_offset = offset;
+ cfi->dw_cfi_oprnd1.dw_cfi_reg_num = loc.reg;
+ cfi->dw_cfi_oprnd2.dw_cfi_offset = loc.offset;
+ }
+ else
+ {
+ struct dw_loc_descr_struct * loc_list;
+ cfi->dw_cfi_opc = DW_CFA_def_cfa_expression;
+ loc_list = build_cfa_loc (&loc);
+ cfi->dw_cfi_oprnd1.dw_cfi_loc = loc_list;
}
add_fde_cfi (label, cfi);
static void
reg_save (label, reg, sreg, offset)
- register char * label;
+ register const char *label;
register unsigned reg;
register unsigned sreg;
register long offset;
}
cfi->dw_cfi_oprnd2.dw_cfi_offset = offset;
}
+ else if (sreg == reg)
+ /* We could emit a DW_CFA_same_value in this case, but don't bother. */
+ return;
else
{
cfi->dw_cfi_opc = DW_CFA_register;
void
dwarf2out_window_save (label)
- register char * label;
+ register const char *label;
{
register dw_cfi_ref cfi = new_cfi ();
cfi->dw_cfi_opc = DW_CFA_GNU_window_save;
void
dwarf2out_args_size (label, size)
- char *label;
+ const char *label;
long size;
{
register dw_cfi_ref cfi;
void
dwarf2out_reg_save (label, reg, offset)
- register char * label;
+ register const char *label;
register unsigned reg;
register long offset;
{
void
dwarf2out_return_save (label, offset)
- register char * label;
+ register const char *label;
register long offset;
{
reg_save (label, DWARF_FRAME_RETURN_COLUMN, -1, offset);
void
dwarf2out_return_reg (label, sreg)
- register char * label;
+ register const char *label;
register unsigned sreg;
{
reg_save (label, DWARF_FRAME_RETURN_COLUMN, sreg, 0);
{
case REG:
/* RA is in a register. */
- reg = reg_number (rtl);
+ reg = DWARF_FRAME_REGNUM (REGNO (rtl));
break;
case MEM:
/* RA is on the stack. */
abort ();
}
- reg_save (NULL, DWARF_FRAME_RETURN_COLUMN, reg, offset - cfa_offset);
+ reg_save (NULL, DWARF_FRAME_RETURN_COLUMN, reg, offset - cfa.offset);
}
/* Check INSN to see if it looks like a push or a stack adjustment, and
rtx insn;
{
long offset;
- char *label;
+ const char *label;
if (! asynchronous_exceptions && GET_CODE (insn) == CALL_INSN)
{
/* If only calls can throw, and we have a frame pointer,
save up adjustments until we see the CALL_INSN. */
else if (! asynchronous_exceptions
- && cfa_reg != STACK_POINTER_REGNUM)
+ && cfa.reg != STACK_POINTER_REGNUM)
return;
if (GET_CODE (insn) == BARRIER)
if (offset == 0)
return;
- if (cfa_reg == STACK_POINTER_REGNUM)
- cfa_offset += offset;
+ if (cfa.reg == STACK_POINTER_REGNUM)
+ cfa.offset += offset;
#ifndef STACK_GROWS_DOWNWARD
offset = -offset;
args_size = 0;
label = dwarf2out_cfi_label ();
- dwarf2out_def_cfa (label, cfa_reg, cfa_offset);
+ def_cfa_1 (label, &cfa);
dwarf2out_args_size (label, args_size);
}
/* A temporary value used in adjusting SP or setting up the store_reg. */
static long cfa_temp_value;
+/* If we see a store of the CFA register, remember it in case we later also
+ copy it into another register. The ARM saves the old SP in the stack,
+ but it also has a usable FP. */
+static unsigned cfa_old_reg;
+
/* Record call frame debugging information for an expression, which either
sets SP or FP (adjusting how we calculate the frame address) or saves a
register to the stack. */
static void
dwarf2out_frame_debug_expr (expr, label)
rtx expr;
- char *label;
+ const char *label;
{
rtx src, dest;
long offset;
{
/* Setting FP from SP. */
case REG:
- if (cfa_reg != (unsigned) REGNO (src))
- abort ();
- if (REGNO (dest) != STACK_POINTER_REGNUM
- && !(frame_pointer_needed
- && REGNO (dest) == HARD_FRAME_POINTER_REGNUM))
+ if (cfa.reg == (unsigned) REGNO (src)
+ || (cfa.indirect && cfa_old_reg == (unsigned) REGNO (src)))
+ /* OK */;
+ else
abort ();
- cfa_reg = REGNO (dest);
+
+ /* We used to require that dest be either SP or FP, but the
+ ARM copies SP to a temporary register, and from there to
+ FP. So we just rely on the backends to only set
+ RTX_FRAME_RELATED_P on appropriate insns. */
+ cfa.reg = REGNO (dest);
+ cfa.indirect = 0;
break;
case PLUS:
if (XEXP (src, 0) == hard_frame_pointer_rtx)
{
/* Restoring SP from FP in the epilogue. */
- if (cfa_reg != (unsigned) HARD_FRAME_POINTER_REGNUM)
+ if (cfa.reg != (unsigned) HARD_FRAME_POINTER_REGNUM)
abort ();
- cfa_reg = STACK_POINTER_REGNUM;
+ cfa.reg = STACK_POINTER_REGNUM;
}
else if (XEXP (src, 0) != stack_pointer_rtx)
abort ();
if (GET_CODE (src) == PLUS)
offset = -offset;
- if (cfa_reg == STACK_POINTER_REGNUM)
- cfa_offset += offset;
- if (cfa_store_reg == STACK_POINTER_REGNUM)
- cfa_store_offset += offset;
+ if (cfa.reg == STACK_POINTER_REGNUM)
+ cfa.offset += offset;
+ if (cfa_store.reg == STACK_POINTER_REGNUM)
+ cfa_store.offset += offset;
}
else if (dest == hard_frame_pointer_rtx)
{
/* Either setting the FP from an offset of the SP,
or adjusting the FP */
- if (! frame_pointer_needed
- || REGNO (dest) != HARD_FRAME_POINTER_REGNUM)
+ if (! frame_pointer_needed)
abort ();
- if (XEXP (src, 0) == stack_pointer_rtx
+ if (GET_CODE (XEXP (src, 0)) == REG
+ && (unsigned) REGNO (XEXP (src, 0)) == cfa.reg
&& GET_CODE (XEXP (src, 1)) == CONST_INT)
{
- if (cfa_reg != STACK_POINTER_REGNUM)
- abort ();
- offset = INTVAL (XEXP (src, 1));
- if (GET_CODE (src) == PLUS)
- offset = -offset;
- cfa_offset += offset;
- cfa_reg = HARD_FRAME_POINTER_REGNUM;
- }
- else if (XEXP (src, 0) == hard_frame_pointer_rtx
- && GET_CODE (XEXP (src, 1)) == CONST_INT)
- {
- if (cfa_reg != (unsigned) HARD_FRAME_POINTER_REGNUM)
- abort ();
offset = INTVAL (XEXP (src, 1));
if (GET_CODE (src) == PLUS)
offset = -offset;
- cfa_offset += offset;
+ cfa.offset += offset;
+ cfa.reg = HARD_FRAME_POINTER_REGNUM;
}
-
else
abort();
}
if (GET_CODE (XEXP (src, 0)) != REG
|| (unsigned) REGNO (XEXP (src, 0)) != cfa_temp_reg)
abort ();
- if (cfa_reg != STACK_POINTER_REGNUM)
+ if (cfa.reg != STACK_POINTER_REGNUM)
abort ();
- cfa_store_reg = REGNO (dest);
- cfa_store_offset = cfa_offset - cfa_temp_value;
+ cfa_store.reg = REGNO (dest);
+ cfa_store.offset = cfa.offset - cfa_temp_value;
}
break;
default:
abort ();
}
- dwarf2out_def_cfa (label, cfa_reg, cfa_offset);
+ def_cfa_1 (label, &cfa);
+ break;
+
+ /* Skip over HIGH, assuming it will be followed by a LO_SUM, which
+ will fill in all of the bits. */
+ case HIGH:
+ break;
+
+ case LO_SUM:
+ cfa_temp_reg = REGNO (dest);
+ cfa_temp_value = INTVAL (XEXP (src, 1));
break;
case MEM:
- /* Saving a register to the stack. Make sure dest is relative to the
- CFA register. */
if (GET_CODE (src) != REG)
abort ();
+
+ /* If the src is our current CFA, and it isn't the SP or FP, then we're
+ going to have to use an indrect mechanism. */
+ if (REGNO (src) != STACK_POINTER_REGNUM
+ && REGNO (src) != HARD_FRAME_POINTER_REGNUM
+ && (unsigned) REGNO (src) == cfa.reg
+ /* Temporary KLUDGE to make ARM work. */
+ && GET_CODE (XEXP (dest, 0)) != PRE_DEC)
+ {
+ /* We currently allow this to be ONLY a MEM or MEM + offset. */
+ rtx x = XEXP (dest, 0);
+ int offset = 0;
+ if (GET_CODE (x) == PLUS || GET_CODE (x) == MINUS)
+ {
+ offset = INTVAL (XEXP (x, 1));
+ if (GET_CODE (x) == MINUS)
+ offset = -offset;
+ x = XEXP (x, 0);
+ }
+ if (GET_CODE (x) != REG)
+ abort ();
+ cfa_old_reg = cfa.reg;
+ cfa.reg = (unsigned) REGNO (x);
+ cfa.base_offset = offset;
+ cfa.indirect = 1;
+ def_cfa_1 (label, &cfa);
+ break;
+ }
+
+ /* Saving a register to the stack. Make sure dest is relative to the
+ CFA register. */
switch (GET_CODE (XEXP (dest, 0)))
{
/* With a push. */
offset = -offset;
if (REGNO (XEXP (XEXP (dest, 0), 0)) != STACK_POINTER_REGNUM
- || cfa_store_reg != STACK_POINTER_REGNUM)
+ || cfa_store.reg != STACK_POINTER_REGNUM)
abort ();
- cfa_store_offset += offset;
- if (cfa_reg == STACK_POINTER_REGNUM)
- cfa_offset = cfa_store_offset;
+ cfa_store.offset += offset;
+ if (cfa.reg == STACK_POINTER_REGNUM)
+ cfa.offset = cfa_store.offset;
- offset = -cfa_store_offset;
+ offset = -cfa_store.offset;
break;
/* With an offset. */
if (GET_CODE (XEXP (dest, 0)) == MINUS)
offset = -offset;
- if (cfa_store_reg != (unsigned) REGNO (XEXP (XEXP (dest, 0), 0)))
+ if (cfa_store.reg != (unsigned) REGNO (XEXP (XEXP (dest, 0), 0)))
abort ();
- offset -= cfa_store_offset;
+ offset -= cfa_store.offset;
break;
/* Without an offset. */
case REG:
- if (cfa_store_reg != (unsigned) REGNO (XEXP (dest, 0)))
+ if (cfa_store.reg != (unsigned) REGNO (XEXP (dest, 0)))
abort();
- offset = -cfa_store_offset;
+ offset = -cfa_store.offset;
break;
default:
abort ();
}
- dwarf2out_def_cfa (label, cfa_reg, cfa_offset);
+ def_cfa_1 (label, &cfa);
dwarf2out_reg_save (label, REGNO (src), offset);
break;
dwarf2out_frame_debug (insn)
rtx insn;
{
- char *label;
+ const char *label;
rtx src;
if (insn == NULL_RTX)
{
/* Set up state for generating call frame debug info. */
- lookup_cfa (&cfa_reg, &cfa_offset);
- if (cfa_reg != (unsigned long) DWARF_FRAME_REGNUM (STACK_POINTER_REGNUM))
+ lookup_cfa (&cfa);
+ if (cfa.reg != (unsigned long) DWARF_FRAME_REGNUM (STACK_POINTER_REGNUM))
abort ();
- cfa_reg = STACK_POINTER_REGNUM;
- cfa_store_reg = cfa_reg;
- cfa_store_offset = cfa_offset;
+ cfa.reg = STACK_POINTER_REGNUM;
+ cfa_store = cfa;
cfa_temp_reg = -1;
cfa_temp_value = 0;
return;
output_uleb128 (cfi->dw_cfi_oprnd1.dw_cfi_offset);
fputc ('\n', asm_out_file);
break;
+ case DW_CFA_def_cfa_expression:
+ output_cfa_loc (cfi);
+ break;
default:
break;
}
/* Do we want to include a pointer to the exception table? */
int eh_ptr = for_eh && exception_table_p ();
+ /* If we don't have any functions we'll want to unwind out of, don't
+ emit any EH unwind information. */
+ if (for_eh)
+ {
+ for (i = 0; i < fde_table_in_use; ++i)
+ if (! fde_table[i].nothrow)
+ goto found;
+ return;
+ found:;
+ }
+
fputc ('\n', asm_out_file);
/* We're going to be generating comments, so turn on app. */
tree label = get_file_function_name ('F');
force_data_section ();
- ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (PTR_SIZE));
+ ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (DWARF2_ADDR_SIZE));
ASM_GLOBALIZE_LABEL (asm_out_file, IDENTIFIER_POINTER (label));
ASM_OUTPUT_LABEL (asm_out_file, IDENTIFIER_POINTER (label));
#endif
output_cfi (cfi, NULL);
/* Pad the CIE out to an address sized boundary. */
- ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (PTR_SIZE));
+ ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (DWARF2_ADDR_SIZE));
ASM_OUTPUT_LABEL (asm_out_file, l2);
#ifdef ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL
ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL (asm_out_file, ld, l2, l1);
{
fde = &fde_table[i];
+ /* Don't emit EH unwind info for leaf functions. */
+ if (for_eh && fde->nothrow)
+ continue;
+
ASM_GENERATE_INTERNAL_LABEL (l1, FDE_AFTER_SIZE_LABEL, for_eh + i*2);
ASM_GENERATE_INTERNAL_LABEL (l2, FDE_END_LABEL, for_eh + i*2);
#ifdef ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL
output_cfi (cfi, fde);
/* Pad the FDE out to an address sized boundary. */
- ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (PTR_SIZE));
+ ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (DWARF2_ADDR_SIZE));
ASM_OUTPUT_LABEL (asm_out_file, l2);
#ifdef ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL
ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL (asm_out_file, ld, l2, l1);
fde->dw_fde_current_label = NULL;
fde->dw_fde_end = NULL;
fde->dw_fde_cfi = NULL;
+ fde->nothrow = current_function_nothrow;
args_size = old_args_size = 0;
}
output_call_frame_info (1);
#endif
}
+\f
+/* And now, the subset of the debugging information support code necessary
+ for emitting location expressions. */
-#endif /* .debug_frame support */
-
-/* And now, the support for symbolic debugging information. */
-#ifdef DWARF2_DEBUGGING_INFO
-
-/* NOTE: In the comments in this file, many references are made to
- "Debugging Information Entries". This term is abbreviated as `DIE'
- throughout the remainder of this file. */
-
-/* An internal representation of the DWARF output is built, and then
- walked to generate the DWARF debugging info. The walk of the internal
- representation is done after the entire program has been compiled.
- The types below are used to describe the internal representation. */
+typedef struct dw_val_struct *dw_val_ref;
+typedef struct die_struct *dw_die_ref;
+typedef struct dw_loc_descr_struct *dw_loc_descr_ref;
/* Each DIE may have a series of attribute/value pairs. Values
can take on several forms. The forms that are used in this
}
dw_val_class;
-/* Various DIE's use offsets relative to the beginning of the
- .debug_info section to refer to each other. */
-
-typedef long int dw_offset;
-
-/* Define typedefs here to avoid circular dependencies. */
-
-typedef struct die_struct *dw_die_ref;
-typedef struct dw_attr_struct *dw_attr_ref;
-typedef struct dw_val_struct *dw_val_ref;
-typedef struct dw_line_info_struct *dw_line_info_ref;
-typedef struct dw_separate_line_info_struct *dw_separate_line_info_ref;
-typedef struct dw_loc_descr_struct *dw_loc_descr_ref;
-typedef struct pubname_struct *pubname_ref;
-typedef dw_die_ref *arange_ref;
-
/* Describe a double word constant value. */
+/* ??? Every instance of long_long in the code really means CONST_DOUBLE. */
typedef struct dw_long_long_struct
{
}
dw_float_const;
-/* Each entry in the line_info_table maintains the file and
- line number associated with the label generated for that
- entry. The label gives the PC value associated with
- the line number entry. */
-
-typedef struct dw_line_info_struct
-{
- unsigned long dw_file_num;
- unsigned long dw_line_num;
-}
-dw_line_info_entry;
-
-/* Line information for functions in separate sections; each one gets its
- own sequence. */
-typedef struct dw_separate_line_info_struct
-{
- unsigned long dw_file_num;
- unsigned long dw_line_num;
- unsigned long function;
-}
-dw_separate_line_info_entry;
-
/* The dw_val_node describes an attribute's value, as it is
represented internally. */
}
dw_loc_descr_node;
-/* Each DIE attribute has a field specifying the attribute kind,
- a link to the next attribute in the chain, and an attribute value.
- Attributes are typically linked below the DIE they modify. */
-
-typedef struct dw_attr_struct
-{
- enum dwarf_attribute dw_attr;
- dw_attr_ref dw_attr_next;
- dw_val_node dw_attr_val;
-}
-dw_attr_node;
-
-/* The Debugging Information Entry (DIE) structure */
-
-typedef struct die_struct
-{
- enum dwarf_tag die_tag;
- dw_attr_ref die_attr;
- dw_die_ref die_parent;
- dw_die_ref die_child;
- dw_die_ref die_sib;
- dw_offset die_offset;
- unsigned long die_abbrev;
-}
-die_node;
-
-/* The pubname structure */
+static const char *dwarf_stack_op_name PARAMS ((unsigned));
+static dw_loc_descr_ref new_loc_descr PARAMS ((enum dwarf_location_atom,
+ unsigned long,
+ unsigned long));
+static void add_loc_descr PARAMS ((dw_loc_descr_ref *,
+ dw_loc_descr_ref));
+static unsigned long size_of_loc_descr PARAMS ((dw_loc_descr_ref));
+static unsigned long size_of_locs PARAMS ((dw_loc_descr_ref));
+static void output_loc_operands PARAMS ((dw_loc_descr_ref));
+static void output_loc_sequence PARAMS ((dw_loc_descr_ref));
-typedef struct pubname_struct
-{
- dw_die_ref die;
- char * name;
-}
-pubname_entry;
+/* Convert a DWARF stack opcode into its string name. */
-/* The limbo die list structure. */
-typedef struct limbo_die_struct
+static const char *
+dwarf_stack_op_name (op)
+ register unsigned op;
{
- dw_die_ref die;
- struct limbo_die_struct *next;
-}
-limbo_die_node;
-
-/* How to start an assembler comment. */
-#ifndef ASM_COMMENT_START
-#define ASM_COMMENT_START ";#"
-#endif
-
-/* Define a macro which returns non-zero for a TYPE_DECL which was
- implicitly generated for a tagged type.
-
- Note that unlike the gcc front end (which generates a NULL named
- TYPE_DECL node for each complete tagged type, each array type, and
- each function type node created) the g++ front end generates a
- _named_ TYPE_DECL node for each tagged type node created.
- These TYPE_DECLs have DECL_ARTIFICIAL set, so we know not to
- generate a DW_TAG_typedef DIE for them. */
-
-#define TYPE_DECL_IS_STUB(decl) \
- (DECL_NAME (decl) == NULL_TREE \
- || (DECL_ARTIFICIAL (decl) \
- && is_tagged_type (TREE_TYPE (decl)) \
- && ((decl == TYPE_STUB_DECL (TREE_TYPE (decl))) \
- /* This is necessary for stub decls that \
- appear in nested inline functions. */ \
- || (DECL_ABSTRACT_ORIGIN (decl) != NULL_TREE \
- && (decl_ultimate_origin (decl) \
- == TYPE_STUB_DECL (TREE_TYPE (decl)))))))
-
-/* Information concerning the compilation unit's programming
- language, and compiler version. */
-
-extern int flag_traditional;
-
-/* Fixed size portion of the DWARF compilation unit header. */
-#define DWARF_COMPILE_UNIT_HEADER_SIZE (2 * DWARF_OFFSET_SIZE + 3)
-
-/* Fixed size portion of debugging line information prolog. */
-#define DWARF_LINE_PROLOG_HEADER_SIZE 5
-
-/* Fixed size portion of public names info. */
-#define DWARF_PUBNAMES_HEADER_SIZE (2 * DWARF_OFFSET_SIZE + 2)
-
-/* Fixed size portion of the address range info. */
-#define DWARF_ARANGES_HEADER_SIZE \
- (DWARF_ROUND (2 * DWARF_OFFSET_SIZE + 4, PTR_SIZE * 2) - DWARF_OFFSET_SIZE)
-
-/* The default is to have gcc emit the line number tables. */
-#ifndef DWARF2_ASM_LINE_DEBUG_INFO
-#define DWARF2_ASM_LINE_DEBUG_INFO 0
-#endif
-
-/* Define the architecture-dependent minimum instruction length (in bytes).
- In this implementation of DWARF, this field is used for information
- purposes only. Since GCC generates assembly language, we have
- no a priori knowledge of how many instruction bytes are generated
- for each source line, and therefore can use only the DW_LNE_set_address
- and DW_LNS_fixed_advance_pc line information commands. */
-
-#ifndef DWARF_LINE_MIN_INSTR_LENGTH
-#define DWARF_LINE_MIN_INSTR_LENGTH 4
-#endif
-
-/* Minimum line offset in a special line info. opcode.
- This value was chosen to give a reasonable range of values. */
-#define DWARF_LINE_BASE -10
-
-/* First special line opcde - leave room for the standard opcodes. */
-#define DWARF_LINE_OPCODE_BASE 10
-
-/* Range of line offsets in a special line info. opcode. */
-#define DWARF_LINE_RANGE (254-DWARF_LINE_OPCODE_BASE+1)
-
-/* Flag that indicates the initial value of the is_stmt_start flag.
- In the present implementation, we do not mark any lines as
- the beginning of a source statement, because that information
- is not made available by the GCC front-end. */
-#define DWARF_LINE_DEFAULT_IS_STMT_START 1
-
-/* This location is used by calc_die_sizes() to keep track
- the offset of each DIE within the .debug_info section. */
-static unsigned long next_die_offset;
-
-/* Record the root of the DIE's built for the current compilation unit. */
-static dw_die_ref comp_unit_die;
-
-/* A list of DIEs with a NULL parent waiting to be relocated. */
-static limbo_die_node *limbo_die_list = 0;
-
-/* Pointer to an array of filenames referenced by this compilation unit. */
-static char **file_table;
-
-/* Total number of entries in the table (i.e. array) pointed to by
- `file_table'. This is the *total* and includes both used and unused
- slots. */
-static unsigned file_table_allocated;
-
-/* Number of entries in the file_table which are actually in use. */
-static unsigned file_table_in_use;
-
-/* Size (in elements) of increments by which we may expand the filename
- table. */
-#define FILE_TABLE_INCREMENT 64
-
-/* Local pointer to the name of the main input file. Initialized in
- dwarf2out_init. */
-static char *primary_filename;
-
-/* A pointer to the base of a table of references to DIE's that describe
- declarations. The table is indexed by DECL_UID() which is a unique
- number identifying each decl. */
-static dw_die_ref *decl_die_table;
-
-/* Number of elements currently allocated for the decl_die_table. */
-static unsigned decl_die_table_allocated;
-
-/* Number of elements in decl_die_table currently in use. */
-static unsigned decl_die_table_in_use;
-
-/* Size (in elements) of increments by which we may expand the
- decl_die_table. */
-#define DECL_DIE_TABLE_INCREMENT 256
-
-/* A pointer to the base of a table of references to declaration
- scopes. This table is a display which tracks the nesting
- of declaration scopes at the current scope and containing
- scopes. This table is used to find the proper place to
- define type declaration DIE's. */
-static tree *decl_scope_table;
-
-/* Number of elements currently allocated for the decl_scope_table. */
-static int decl_scope_table_allocated;
-
-/* Current level of nesting of declaration scopes. */
-static int decl_scope_depth;
-
-/* Size (in elements) of increments by which we may expand the
- decl_scope_table. */
-#define DECL_SCOPE_TABLE_INCREMENT 64
-
-/* A pointer to the base of a list of references to DIE's that
- are uniquely identified by their tag, presence/absence of
- children DIE's, and list of attribute/value pairs. */
-static dw_die_ref *abbrev_die_table;
-
-/* Number of elements currently allocated for abbrev_die_table. */
-static unsigned abbrev_die_table_allocated;
-
-/* Number of elements in type_die_table currently in use. */
-static unsigned abbrev_die_table_in_use;
-
-/* Size (in elements) of increments by which we may expand the
- abbrev_die_table. */
-#define ABBREV_DIE_TABLE_INCREMENT 256
-
-/* A pointer to the base of a table that contains line information
- for each source code line in .text in the compilation unit. */
-static dw_line_info_ref line_info_table;
-
-/* Number of elements currently allocated for line_info_table. */
-static unsigned line_info_table_allocated;
-
-/* Number of elements in separate_line_info_table currently in use. */
-static unsigned separate_line_info_table_in_use;
-
-/* A pointer to the base of a table that contains line information
- for each source code line outside of .text in the compilation unit. */
-static dw_separate_line_info_ref separate_line_info_table;
-
-/* Number of elements currently allocated for separate_line_info_table. */
-static unsigned separate_line_info_table_allocated;
-
-/* Number of elements in line_info_table currently in use. */
-static unsigned line_info_table_in_use;
-
-/* Size (in elements) of increments by which we may expand the
- line_info_table. */
-#define LINE_INFO_TABLE_INCREMENT 1024
-
-/* A pointer to the base of a table that contains a list of publicly
- accessible names. */
-static pubname_ref pubname_table;
-
-/* Number of elements currently allocated for pubname_table. */
-static unsigned pubname_table_allocated;
-
-/* Number of elements in pubname_table currently in use. */
-static unsigned pubname_table_in_use;
-
-/* Size (in elements) of increments by which we may expand the
- pubname_table. */
-#define PUBNAME_TABLE_INCREMENT 64
-
-/* A pointer to the base of a table that contains a list of publicly
- accessible names. */
-static arange_ref arange_table;
-
-/* Number of elements currently allocated for arange_table. */
-static unsigned arange_table_allocated;
-
-/* Number of elements in arange_table currently in use. */
-static unsigned arange_table_in_use;
-
-/* Size (in elements) of increments by which we may expand the
- arange_table. */
-#define ARANGE_TABLE_INCREMENT 64
-
-/* A pointer to the base of a list of incomplete types which might be
- completed at some later time. */
-
-static tree *incomplete_types_list;
-
-/* Number of elements currently allocated for the incomplete_types_list. */
-static unsigned incomplete_types_allocated;
-
-/* Number of elements of incomplete_types_list currently in use. */
-static unsigned incomplete_types;
-
-/* Size (in elements) of increments by which we may expand the incomplete
- types list. Actually, a single hunk of space of this size should
- be enough for most typical programs. */
-#define INCOMPLETE_TYPES_INCREMENT 64
-
-/* Record whether the function being analyzed contains inlined functions. */
-static int current_function_has_inlines;
-#if 0 && defined (MIPS_DEBUGGING_INFO)
-static int comp_unit_has_inlines;
-#endif
-
-/* Array of RTXes referenced by the debugging information, which therefore
- must be kept around forever. We do this rather than perform GC on
- the dwarf info because almost all of the dwarf info lives forever, and
- it's easier to support non-GC frontends this way. */
-static varray_type used_rtx_varray;
-
-/* Forward declarations for functions defined in this file. */
-
-static int is_pseudo_reg PARAMS ((rtx));
-static tree type_main_variant PARAMS ((tree));
-static int is_tagged_type PARAMS ((tree));
-static const char *dwarf_tag_name PARAMS ((unsigned));
-static const char *dwarf_attr_name PARAMS ((unsigned));
-static const char *dwarf_form_name PARAMS ((unsigned));
-static const char *dwarf_stack_op_name PARAMS ((unsigned));
-#if 0
-static const char *dwarf_type_encoding_name PARAMS ((unsigned));
-#endif
-static tree decl_ultimate_origin PARAMS ((tree));
-static tree block_ultimate_origin PARAMS ((tree));
-static tree decl_class_context PARAMS ((tree));
-static void add_dwarf_attr PARAMS ((dw_die_ref, dw_attr_ref));
-static void add_AT_flag PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- unsigned));
-static void add_AT_int PARAMS ((dw_die_ref,
- enum dwarf_attribute, long));
-static void add_AT_unsigned PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- unsigned long));
-static void add_AT_long_long PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- unsigned long,
- unsigned long));
-static void add_AT_float PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- unsigned, long *));
-static void add_AT_string PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- const char *));
-static void add_AT_die_ref PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- dw_die_ref));
-static void add_AT_fde_ref PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- unsigned));
-static void add_AT_loc PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- dw_loc_descr_ref));
-static void add_AT_addr PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- rtx));
-static void add_AT_lbl_id PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- char *));
-static void add_AT_lbl_offset PARAMS ((dw_die_ref,
- enum dwarf_attribute,
- char *));
-static dw_attr_ref get_AT PARAMS ((dw_die_ref,
- enum dwarf_attribute));
-static const char *get_AT_low_pc PARAMS ((dw_die_ref));
-static const char *get_AT_hi_pc PARAMS ((dw_die_ref));
-static const char *get_AT_string PARAMS ((dw_die_ref,
- enum dwarf_attribute));
-static int get_AT_flag PARAMS ((dw_die_ref,
- enum dwarf_attribute));
-static unsigned get_AT_unsigned PARAMS ((dw_die_ref,
- enum dwarf_attribute));
-static inline dw_die_ref get_AT_ref PARAMS ((dw_die_ref,
- enum dwarf_attribute));
-static int is_c_family PARAMS ((void));
-static int is_fortran PARAMS ((void));
-static void remove_AT PARAMS ((dw_die_ref,
- enum dwarf_attribute));
-static void remove_children PARAMS ((dw_die_ref));
-static void add_child_die PARAMS ((dw_die_ref, dw_die_ref));
-static dw_die_ref new_die PARAMS ((enum dwarf_tag, dw_die_ref));
-static dw_die_ref lookup_type_die PARAMS ((tree));
-static void equate_type_number_to_die PARAMS ((tree, dw_die_ref));
-static dw_die_ref lookup_decl_die PARAMS ((tree));
-static void equate_decl_number_to_die PARAMS ((tree, dw_die_ref));
-static dw_loc_descr_ref new_loc_descr PARAMS ((enum dwarf_location_atom,
- unsigned long,
- unsigned long));
-static void add_loc_descr PARAMS ((dw_loc_descr_ref *,
- dw_loc_descr_ref));
-static void print_spaces PARAMS ((FILE *));
-static void print_die PARAMS ((dw_die_ref, FILE *));
-static void print_dwarf_line_table PARAMS ((FILE *));
-static void add_sibling_attributes PARAMS ((dw_die_ref));
-static void build_abbrev_table PARAMS ((dw_die_ref));
-static unsigned long size_of_string PARAMS ((const char *));
-static unsigned long size_of_loc_descr PARAMS ((dw_loc_descr_ref));
-static unsigned long size_of_locs PARAMS ((dw_loc_descr_ref));
-static int constant_size PARAMS ((long unsigned));
-static unsigned long size_of_die PARAMS ((dw_die_ref));
-static void calc_die_sizes PARAMS ((dw_die_ref));
-static unsigned long size_of_line_prolog PARAMS ((void));
-static unsigned long size_of_pubnames PARAMS ((void));
-static unsigned long size_of_aranges PARAMS ((void));
-static enum dwarf_form value_format PARAMS ((dw_attr_ref));
-static void output_value_format PARAMS ((dw_attr_ref));
-static void output_abbrev_section PARAMS ((void));
-static void output_loc_operands PARAMS ((dw_loc_descr_ref));
-static void output_die PARAMS ((dw_die_ref));
-static void output_compilation_unit_header PARAMS ((void));
-static const char *dwarf2_name PARAMS ((tree, int));
-static void add_pubname PARAMS ((tree, dw_die_ref));
-static void output_pubnames PARAMS ((void));
-static void add_arange PARAMS ((tree, dw_die_ref));
-static void output_aranges PARAMS ((void));
-static void output_line_info PARAMS ((void));
-static dw_die_ref base_type_die PARAMS ((tree));
-static tree root_type PARAMS ((tree));
-static int is_base_type PARAMS ((tree));
-static dw_die_ref modified_type_die PARAMS ((tree, int, int, dw_die_ref));
-static int type_is_enum PARAMS ((tree));
-static dw_loc_descr_ref reg_loc_descriptor PARAMS ((rtx));
-static dw_loc_descr_ref based_loc_descr PARAMS ((unsigned, long));
-static int is_based_loc PARAMS ((rtx));
-static dw_loc_descr_ref mem_loc_descriptor PARAMS ((rtx, enum machine_mode mode));
-static dw_loc_descr_ref concat_loc_descriptor PARAMS ((rtx, rtx));
-static dw_loc_descr_ref loc_descriptor PARAMS ((rtx));
-static unsigned ceiling PARAMS ((unsigned, unsigned));
-static tree field_type PARAMS ((tree));
-static unsigned simple_type_align_in_bits PARAMS ((tree));
-static unsigned simple_type_size_in_bits PARAMS ((tree));
-static unsigned field_byte_offset PARAMS ((tree));
-static void add_AT_location_description PARAMS ((dw_die_ref,
- enum dwarf_attribute, rtx));
-static void add_data_member_location_attribute PARAMS ((dw_die_ref, tree));
-static void add_const_value_attribute PARAMS ((dw_die_ref, rtx));
-static void add_location_or_const_value_attribute PARAMS ((dw_die_ref, tree));
-static void add_name_attribute PARAMS ((dw_die_ref, const char *));
-static void add_bound_info PARAMS ((dw_die_ref,
- enum dwarf_attribute, tree));
-static void add_subscript_info PARAMS ((dw_die_ref, tree));
-static void add_byte_size_attribute PARAMS ((dw_die_ref, tree));
-static void add_bit_offset_attribute PARAMS ((dw_die_ref, tree));
-static void add_bit_size_attribute PARAMS ((dw_die_ref, tree));
-static void add_prototyped_attribute PARAMS ((dw_die_ref, tree));
-static void add_abstract_origin_attribute PARAMS ((dw_die_ref, tree));
-static void add_pure_or_virtual_attribute PARAMS ((dw_die_ref, tree));
-static void add_src_coords_attributes PARAMS ((dw_die_ref, tree));
-static void add_name_and_src_coords_attributes PARAMS ((dw_die_ref, tree));
-static void push_decl_scope PARAMS ((tree));
-static dw_die_ref scope_die_for PARAMS ((tree, dw_die_ref));
-static void pop_decl_scope PARAMS ((void));
-static void add_type_attribute PARAMS ((dw_die_ref, tree, int, int,
- dw_die_ref));
-static char *type_tag PARAMS ((tree));
-static tree member_declared_type PARAMS ((tree));
-#if 0
-static char *decl_start_label PARAMS ((tree));
-#endif
-static void gen_array_type_die PARAMS ((tree, dw_die_ref));
-static void gen_set_type_die PARAMS ((tree, dw_die_ref));
-#if 0
-static void gen_entry_point_die PARAMS ((tree, dw_die_ref));
-#endif
-static void gen_inlined_enumeration_type_die PARAMS ((tree, dw_die_ref));
-static void gen_inlined_structure_type_die PARAMS ((tree, dw_die_ref));
-static void gen_inlined_union_type_die PARAMS ((tree, dw_die_ref));
-static void gen_enumeration_type_die PARAMS ((tree, dw_die_ref));
-static dw_die_ref gen_formal_parameter_die PARAMS ((tree, dw_die_ref));
-static void gen_unspecified_parameters_die PARAMS ((tree, dw_die_ref));
-static void gen_formal_types_die PARAMS ((tree, dw_die_ref));
-static void gen_subprogram_die PARAMS ((tree, dw_die_ref));
-static void gen_variable_die PARAMS ((tree, dw_die_ref));
-static void gen_label_die PARAMS ((tree, dw_die_ref));
-static void gen_lexical_block_die PARAMS ((tree, dw_die_ref, int));
-static void gen_inlined_subroutine_die PARAMS ((tree, dw_die_ref, int));
-static void gen_field_die PARAMS ((tree, dw_die_ref));
-static void gen_ptr_to_mbr_type_die PARAMS ((tree, dw_die_ref));
-static dw_die_ref gen_compile_unit_die PARAMS ((const char *));
-static void gen_string_type_die PARAMS ((tree, dw_die_ref));
-static void gen_inheritance_die PARAMS ((tree, dw_die_ref));
-static void gen_member_die PARAMS ((tree, dw_die_ref));
-static void gen_struct_or_union_type_die PARAMS ((tree, dw_die_ref));
-static void gen_subroutine_type_die PARAMS ((tree, dw_die_ref));
-static void gen_typedef_die PARAMS ((tree, dw_die_ref));
-static void gen_type_die PARAMS ((tree, dw_die_ref));
-static void gen_tagged_type_instantiation_die PARAMS ((tree, dw_die_ref));
-static void gen_block_die PARAMS ((tree, dw_die_ref, int));
-static void decls_for_scope PARAMS ((tree, dw_die_ref, int));
-static int is_redundant_typedef PARAMS ((tree));
-static void gen_decl_die PARAMS ((tree, dw_die_ref));
-static unsigned lookup_filename PARAMS ((const char *));
-static void add_incomplete_type PARAMS ((tree));
-static void retry_incomplete_types PARAMS ((void));
-static void gen_type_die_for_member PARAMS ((tree, tree, dw_die_ref));
-static void gen_abstract_function PARAMS ((tree));
-static rtx save_rtx PARAMS ((rtx));
-static void splice_child_die PARAMS ((dw_die_ref, dw_die_ref));
-static void reverse_die_lists PARAMS ((dw_die_ref));
-
-/* Section names used to hold DWARF debugging information. */
-#ifndef DEBUG_INFO_SECTION
-#define DEBUG_INFO_SECTION ".debug_info"
-#endif
-#ifndef ABBREV_SECTION
-#define ABBREV_SECTION ".debug_abbrev"
-#endif
-#ifndef ARANGES_SECTION
-#define ARANGES_SECTION ".debug_aranges"
-#endif
-#ifndef DW_MACINFO_SECTION
-#define DW_MACINFO_SECTION ".debug_macinfo"
-#endif
-#ifndef DEBUG_LINE_SECTION
-#define DEBUG_LINE_SECTION ".debug_line"
-#endif
-#ifndef LOC_SECTION
-#define LOC_SECTION ".debug_loc"
-#endif
-#ifndef PUBNAMES_SECTION
-#define PUBNAMES_SECTION ".debug_pubnames"
-#endif
-#ifndef STR_SECTION
-#define STR_SECTION ".debug_str"
-#endif
-
-/* Standard ELF section names for compiled code and data. */
-#ifndef TEXT_SECTION
-#define TEXT_SECTION ".text"
-#endif
-#ifndef DATA_SECTION
-#define DATA_SECTION ".data"
-#endif
-#ifndef BSS_SECTION
-#define BSS_SECTION ".bss"
-#endif
-
-/* Labels we insert at beginning sections we can reference instead of
- the section names themselves. */
-
-#ifndef TEXT_SECTION_LABEL
-#define TEXT_SECTION_LABEL "Ltext"
-#endif
-#ifndef DEBUG_LINE_SECTION_LABEL
-#define DEBUG_LINE_SECTION_LABEL "Ldebug_line"
-#endif
-#ifndef DEBUG_INFO_SECTION_LABEL
-#define DEBUG_INFO_SECTION_LABEL "Ldebug_info"
-#endif
-#ifndef ABBREV_SECTION_LABEL
-#define ABBREV_SECTION_LABEL "Ldebug_abbrev"
-#endif
-
-
-/* Definitions of defaults for formats and names of various special
- (artificial) labels which may be generated within this file (when the -g
- options is used and DWARF_DEBUGGING_INFO is in effect.
- If necessary, these may be overridden from within the tm.h file, but
- typically, overriding these defaults is unnecessary. */
-
-static char text_end_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char text_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char abbrev_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char debug_info_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char debug_line_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-
-#ifndef TEXT_END_LABEL
-#define TEXT_END_LABEL "Letext"
-#endif
-#ifndef DATA_END_LABEL
-#define DATA_END_LABEL "Ledata"
-#endif
-#ifndef BSS_END_LABEL
-#define BSS_END_LABEL "Lebss"
-#endif
-#ifndef INSN_LABEL_FMT
-#define INSN_LABEL_FMT "LI%u_"
-#endif
-#ifndef BLOCK_BEGIN_LABEL
-#define BLOCK_BEGIN_LABEL "LBB"
-#endif
-#ifndef BLOCK_END_LABEL
-#define BLOCK_END_LABEL "LBE"
-#endif
-#ifndef BODY_BEGIN_LABEL
-#define BODY_BEGIN_LABEL "Lbb"
-#endif
-#ifndef BODY_END_LABEL
-#define BODY_END_LABEL "Lbe"
-#endif
-#ifndef LINE_CODE_LABEL
-#define LINE_CODE_LABEL "LM"
-#endif
-#ifndef SEPARATE_LINE_CODE_LABEL
-#define SEPARATE_LINE_CODE_LABEL "LSM"
-#endif
-\f
-/* We allow a language front-end to designate a function that is to be
- called to "demangle" any name before it it put into a DIE. */
-
-static const char *(*demangle_name_func) PARAMS ((const char *));
-
-void
-dwarf2out_set_demangle_name_func (func)
- const char *(*func) PARAMS ((const char *));
-{
- demangle_name_func = func;
-}
-\f
-/* Return an rtx like ORIG which lives forever. If we're doing GC,
- that means adding it to used_rtx_varray. If not, that means making
- a copy on the permanent_obstack. */
-
-static rtx
-save_rtx (orig)
- register rtx orig;
-{
- if (ggc_p)
- VARRAY_PUSH_RTX (used_rtx_varray, orig);
- else
- {
- push_obstacks_nochange ();
- end_temporary_allocation ();
- orig = copy_rtx (orig);
- pop_obstacks ();
- }
-
- return orig;
-}
-
-/* Test if rtl node points to a pseudo register. */
-
-static inline int
-is_pseudo_reg (rtl)
- register rtx rtl;
-{
- return (((GET_CODE (rtl) == REG) && (REGNO (rtl) >= FIRST_PSEUDO_REGISTER))
- || ((GET_CODE (rtl) == SUBREG)
- && (REGNO (XEXP (rtl, 0)) >= FIRST_PSEUDO_REGISTER)));
-}
-
-/* Return a reference to a type, with its const and volatile qualifiers
- removed. */
-
-static inline tree
-type_main_variant (type)
- register tree type;
-{
- type = TYPE_MAIN_VARIANT (type);
-
- /* There really should be only one main variant among any group of variants
- of a given type (and all of the MAIN_VARIANT values for all members of
- the group should point to that one type) but sometimes the C front-end
- messes this up for array types, so we work around that bug here. */
-
- if (TREE_CODE (type) == ARRAY_TYPE)
- while (type != TYPE_MAIN_VARIANT (type))
- type = TYPE_MAIN_VARIANT (type);
-
- return type;
-}
-
-/* Return non-zero if the given type node represents a tagged type. */
-
-static inline int
-is_tagged_type (type)
- register tree type;
-{
- register enum tree_code code = TREE_CODE (type);
-
- return (code == RECORD_TYPE || code == UNION_TYPE
- || code == QUAL_UNION_TYPE || code == ENUMERAL_TYPE);
-}
-
-/* Convert a DIE tag into its string name. */
-
-static const char *
-dwarf_tag_name (tag)
- register unsigned tag;
-{
- switch (tag)
- {
- case DW_TAG_padding:
- return "DW_TAG_padding";
- case DW_TAG_array_type:
- return "DW_TAG_array_type";
- case DW_TAG_class_type:
- return "DW_TAG_class_type";
- case DW_TAG_entry_point:
- return "DW_TAG_entry_point";
- case DW_TAG_enumeration_type:
- return "DW_TAG_enumeration_type";
- case DW_TAG_formal_parameter:
- return "DW_TAG_formal_parameter";
- case DW_TAG_imported_declaration:
- return "DW_TAG_imported_declaration";
- case DW_TAG_label:
- return "DW_TAG_label";
- case DW_TAG_lexical_block:
- return "DW_TAG_lexical_block";
- case DW_TAG_member:
- return "DW_TAG_member";
- case DW_TAG_pointer_type:
- return "DW_TAG_pointer_type";
- case DW_TAG_reference_type:
- return "DW_TAG_reference_type";
- case DW_TAG_compile_unit:
- return "DW_TAG_compile_unit";
- case DW_TAG_string_type:
- return "DW_TAG_string_type";
- case DW_TAG_structure_type:
- return "DW_TAG_structure_type";
- case DW_TAG_subroutine_type:
- return "DW_TAG_subroutine_type";
- case DW_TAG_typedef:
- return "DW_TAG_typedef";
- case DW_TAG_union_type:
- return "DW_TAG_union_type";
- case DW_TAG_unspecified_parameters:
- return "DW_TAG_unspecified_parameters";
- case DW_TAG_variant:
- return "DW_TAG_variant";
- case DW_TAG_common_block:
- return "DW_TAG_common_block";
- case DW_TAG_common_inclusion:
- return "DW_TAG_common_inclusion";
- case DW_TAG_inheritance:
- return "DW_TAG_inheritance";
- case DW_TAG_inlined_subroutine:
- return "DW_TAG_inlined_subroutine";
- case DW_TAG_module:
- return "DW_TAG_module";
- case DW_TAG_ptr_to_member_type:
- return "DW_TAG_ptr_to_member_type";
- case DW_TAG_set_type:
- return "DW_TAG_set_type";
- case DW_TAG_subrange_type:
- return "DW_TAG_subrange_type";
- case DW_TAG_with_stmt:
- return "DW_TAG_with_stmt";
- case DW_TAG_access_declaration:
- return "DW_TAG_access_declaration";
- case DW_TAG_base_type:
- return "DW_TAG_base_type";
- case DW_TAG_catch_block:
- return "DW_TAG_catch_block";
- case DW_TAG_const_type:
- return "DW_TAG_const_type";
- case DW_TAG_constant:
- return "DW_TAG_constant";
- case DW_TAG_enumerator:
- return "DW_TAG_enumerator";
- case DW_TAG_file_type:
- return "DW_TAG_file_type";
- case DW_TAG_friend:
- return "DW_TAG_friend";
- case DW_TAG_namelist:
- return "DW_TAG_namelist";
- case DW_TAG_namelist_item:
- return "DW_TAG_namelist_item";
- case DW_TAG_packed_type:
- return "DW_TAG_packed_type";
- case DW_TAG_subprogram:
- return "DW_TAG_subprogram";
- case DW_TAG_template_type_param:
- return "DW_TAG_template_type_param";
- case DW_TAG_template_value_param:
- return "DW_TAG_template_value_param";
- case DW_TAG_thrown_type:
- return "DW_TAG_thrown_type";
- case DW_TAG_try_block:
- return "DW_TAG_try_block";
- case DW_TAG_variant_part:
- return "DW_TAG_variant_part";
- case DW_TAG_variable:
- return "DW_TAG_variable";
- case DW_TAG_volatile_type:
- return "DW_TAG_volatile_type";
- case DW_TAG_MIPS_loop:
- return "DW_TAG_MIPS_loop";
- case DW_TAG_format_label:
- return "DW_TAG_format_label";
- case DW_TAG_function_template:
- return "DW_TAG_function_template";
- case DW_TAG_class_template:
- return "DW_TAG_class_template";
- default:
- return "DW_TAG_<unknown>";
- }
-}
-
-/* Convert a DWARF attribute code into its string name. */
-
-static const char *
-dwarf_attr_name (attr)
- register unsigned attr;
-{
- switch (attr)
+ switch (op)
{
- case DW_AT_sibling:
- return "DW_AT_sibling";
- case DW_AT_location:
- return "DW_AT_location";
- case DW_AT_name:
- return "DW_AT_name";
- case DW_AT_ordering:
- return "DW_AT_ordering";
- case DW_AT_subscr_data:
- return "DW_AT_subscr_data";
- case DW_AT_byte_size:
- return "DW_AT_byte_size";
- case DW_AT_bit_offset:
- return "DW_AT_bit_offset";
- case DW_AT_bit_size:
- return "DW_AT_bit_size";
- case DW_AT_element_list:
- return "DW_AT_element_list";
- case DW_AT_stmt_list:
- return "DW_AT_stmt_list";
- case DW_AT_low_pc:
- return "DW_AT_low_pc";
- case DW_AT_high_pc:
- return "DW_AT_high_pc";
- case DW_AT_language:
- return "DW_AT_language";
- case DW_AT_member:
- return "DW_AT_member";
- case DW_AT_discr:
- return "DW_AT_discr";
- case DW_AT_discr_value:
- return "DW_AT_discr_value";
- case DW_AT_visibility:
- return "DW_AT_visibility";
- case DW_AT_import:
- return "DW_AT_import";
- case DW_AT_string_length:
- return "DW_AT_string_length";
- case DW_AT_common_reference:
- return "DW_AT_common_reference";
- case DW_AT_comp_dir:
- return "DW_AT_comp_dir";
- case DW_AT_const_value:
- return "DW_AT_const_value";
- case DW_AT_containing_type:
- return "DW_AT_containing_type";
- case DW_AT_default_value:
- return "DW_AT_default_value";
- case DW_AT_inline:
- return "DW_AT_inline";
- case DW_AT_is_optional:
- return "DW_AT_is_optional";
- case DW_AT_lower_bound:
- return "DW_AT_lower_bound";
- case DW_AT_producer:
- return "DW_AT_producer";
- case DW_AT_prototyped:
- return "DW_AT_prototyped";
- case DW_AT_return_addr:
- return "DW_AT_return_addr";
- case DW_AT_start_scope:
- return "DW_AT_start_scope";
- case DW_AT_stride_size:
- return "DW_AT_stride_size";
- case DW_AT_upper_bound:
- return "DW_AT_upper_bound";
- case DW_AT_abstract_origin:
- return "DW_AT_abstract_origin";
- case DW_AT_accessibility:
- return "DW_AT_accessibility";
- case DW_AT_address_class:
- return "DW_AT_address_class";
- case DW_AT_artificial:
- return "DW_AT_artificial";
- case DW_AT_base_types:
- return "DW_AT_base_types";
- case DW_AT_calling_convention:
- return "DW_AT_calling_convention";
- case DW_AT_count:
- return "DW_AT_count";
- case DW_AT_data_member_location:
- return "DW_AT_data_member_location";
- case DW_AT_decl_column:
- return "DW_AT_decl_column";
- case DW_AT_decl_file:
- return "DW_AT_decl_file";
- case DW_AT_decl_line:
- return "DW_AT_decl_line";
- case DW_AT_declaration:
- return "DW_AT_declaration";
- case DW_AT_discr_list:
- return "DW_AT_discr_list";
- case DW_AT_encoding:
- return "DW_AT_encoding";
- case DW_AT_external:
- return "DW_AT_external";
- case DW_AT_frame_base:
- return "DW_AT_frame_base";
- case DW_AT_friend:
- return "DW_AT_friend";
- case DW_AT_identifier_case:
- return "DW_AT_identifier_case";
- case DW_AT_macro_info:
- return "DW_AT_macro_info";
- case DW_AT_namelist_items:
- return "DW_AT_namelist_items";
- case DW_AT_priority:
- return "DW_AT_priority";
- case DW_AT_segment:
- return "DW_AT_segment";
- case DW_AT_specification:
- return "DW_AT_specification";
- case DW_AT_static_link:
- return "DW_AT_static_link";
- case DW_AT_type:
- return "DW_AT_type";
- case DW_AT_use_location:
- return "DW_AT_use_location";
- case DW_AT_variable_parameter:
- return "DW_AT_variable_parameter";
- case DW_AT_virtuality:
- return "DW_AT_virtuality";
- case DW_AT_vtable_elem_location:
- return "DW_AT_vtable_elem_location";
-
- case DW_AT_MIPS_fde:
- return "DW_AT_MIPS_fde";
- case DW_AT_MIPS_loop_begin:
- return "DW_AT_MIPS_loop_begin";
- case DW_AT_MIPS_tail_loop_begin:
- return "DW_AT_MIPS_tail_loop_begin";
- case DW_AT_MIPS_epilog_begin:
- return "DW_AT_MIPS_epilog_begin";
- case DW_AT_MIPS_loop_unroll_factor:
- return "DW_AT_MIPS_loop_unroll_factor";
- case DW_AT_MIPS_software_pipeline_depth:
- return "DW_AT_MIPS_software_pipeline_depth";
- case DW_AT_MIPS_linkage_name:
- return "DW_AT_MIPS_linkage_name";
- case DW_AT_MIPS_stride:
- return "DW_AT_MIPS_stride";
- case DW_AT_MIPS_abstract_name:
- return "DW_AT_MIPS_abstract_name";
- case DW_AT_MIPS_clone_origin:
- return "DW_AT_MIPS_clone_origin";
- case DW_AT_MIPS_has_inlines:
- return "DW_AT_MIPS_has_inlines";
-
- case DW_AT_sf_names:
- return "DW_AT_sf_names";
- case DW_AT_src_info:
- return "DW_AT_src_info";
- case DW_AT_mac_info:
- return "DW_AT_mac_info";
- case DW_AT_src_coords:
- return "DW_AT_src_coords";
- case DW_AT_body_begin:
- return "DW_AT_body_begin";
- case DW_AT_body_end:
- return "DW_AT_body_end";
+ case DW_OP_addr:
+ return "DW_OP_addr";
+ case DW_OP_deref:
+ return "DW_OP_deref";
+ case DW_OP_const1u:
+ return "DW_OP_const1u";
+ case DW_OP_const1s:
+ return "DW_OP_const1s";
+ case DW_OP_const2u:
+ return "DW_OP_const2u";
+ case DW_OP_const2s:
+ return "DW_OP_const2s";
+ case DW_OP_const4u:
+ return "DW_OP_const4u";
+ case DW_OP_const4s:
+ return "DW_OP_const4s";
+ case DW_OP_const8u:
+ return "DW_OP_const8u";
+ case DW_OP_const8s:
+ return "DW_OP_const8s";
+ case DW_OP_constu:
+ return "DW_OP_constu";
+ case DW_OP_consts:
+ return "DW_OP_consts";
+ case DW_OP_dup:
+ return "DW_OP_dup";
+ case DW_OP_drop:
+ return "DW_OP_drop";
+ case DW_OP_over:
+ return "DW_OP_over";
+ case DW_OP_pick:
+ return "DW_OP_pick";
+ case DW_OP_swap:
+ return "DW_OP_swap";
+ case DW_OP_rot:
+ return "DW_OP_rot";
+ case DW_OP_xderef:
+ return "DW_OP_xderef";
+ case DW_OP_abs:
+ return "DW_OP_abs";
+ case DW_OP_and:
+ return "DW_OP_and";
+ case DW_OP_div:
+ return "DW_OP_div";
+ case DW_OP_minus:
+ return "DW_OP_minus";
+ case DW_OP_mod:
+ return "DW_OP_mod";
+ case DW_OP_mul:
+ return "DW_OP_mul";
+ case DW_OP_neg:
+ return "DW_OP_neg";
+ case DW_OP_not:
+ return "DW_OP_not";
+ case DW_OP_or:
+ return "DW_OP_or";
+ case DW_OP_plus:
+ return "DW_OP_plus";
+ case DW_OP_plus_uconst:
+ return "DW_OP_plus_uconst";
+ case DW_OP_shl:
+ return "DW_OP_shl";
+ case DW_OP_shr:
+ return "DW_OP_shr";
+ case DW_OP_shra:
+ return "DW_OP_shra";
+ case DW_OP_xor:
+ return "DW_OP_xor";
+ case DW_OP_bra:
+ return "DW_OP_bra";
+ case DW_OP_eq:
+ return "DW_OP_eq";
+ case DW_OP_ge:
+ return "DW_OP_ge";
+ case DW_OP_gt:
+ return "DW_OP_gt";
+ case DW_OP_le:
+ return "DW_OP_le";
+ case DW_OP_lt:
+ return "DW_OP_lt";
+ case DW_OP_ne:
+ return "DW_OP_ne";
+ case DW_OP_skip:
+ return "DW_OP_skip";
+ case DW_OP_lit0:
+ return "DW_OP_lit0";
+ case DW_OP_lit1:
+ return "DW_OP_lit1";
+ case DW_OP_lit2:
+ return "DW_OP_lit2";
+ case DW_OP_lit3:
+ return "DW_OP_lit3";
+ case DW_OP_lit4:
+ return "DW_OP_lit4";
+ case DW_OP_lit5:
+ return "DW_OP_lit5";
+ case DW_OP_lit6:
+ return "DW_OP_lit6";
+ case DW_OP_lit7:
+ return "DW_OP_lit7";
+ case DW_OP_lit8:
+ return "DW_OP_lit8";
+ case DW_OP_lit9:
+ return "DW_OP_lit9";
+ case DW_OP_lit10:
+ return "DW_OP_lit10";
+ case DW_OP_lit11:
+ return "DW_OP_lit11";
+ case DW_OP_lit12:
+ return "DW_OP_lit12";
+ case DW_OP_lit13:
+ return "DW_OP_lit13";
+ case DW_OP_lit14:
+ return "DW_OP_lit14";
+ case DW_OP_lit15:
+ return "DW_OP_lit15";
+ case DW_OP_lit16:
+ return "DW_OP_lit16";
+ case DW_OP_lit17:
+ return "DW_OP_lit17";
+ case DW_OP_lit18:
+ return "DW_OP_lit18";
+ case DW_OP_lit19:
+ return "DW_OP_lit19";
+ case DW_OP_lit20:
+ return "DW_OP_lit20";
+ case DW_OP_lit21:
+ return "DW_OP_lit21";
+ case DW_OP_lit22:
+ return "DW_OP_lit22";
+ case DW_OP_lit23:
+ return "DW_OP_lit23";
+ case DW_OP_lit24:
+ return "DW_OP_lit24";
+ case DW_OP_lit25:
+ return "DW_OP_lit25";
+ case DW_OP_lit26:
+ return "DW_OP_lit26";
+ case DW_OP_lit27:
+ return "DW_OP_lit27";
+ case DW_OP_lit28:
+ return "DW_OP_lit28";
+ case DW_OP_lit29:
+ return "DW_OP_lit29";
+ case DW_OP_lit30:
+ return "DW_OP_lit30";
+ case DW_OP_lit31:
+ return "DW_OP_lit31";
+ case DW_OP_reg0:
+ return "DW_OP_reg0";
+ case DW_OP_reg1:
+ return "DW_OP_reg1";
+ case DW_OP_reg2:
+ return "DW_OP_reg2";
+ case DW_OP_reg3:
+ return "DW_OP_reg3";
+ case DW_OP_reg4:
+ return "DW_OP_reg4";
+ case DW_OP_reg5:
+ return "DW_OP_reg5";
+ case DW_OP_reg6:
+ return "DW_OP_reg6";
+ case DW_OP_reg7:
+ return "DW_OP_reg7";
+ case DW_OP_reg8:
+ return "DW_OP_reg8";
+ case DW_OP_reg9:
+ return "DW_OP_reg9";
+ case DW_OP_reg10:
+ return "DW_OP_reg10";
+ case DW_OP_reg11:
+ return "DW_OP_reg11";
+ case DW_OP_reg12:
+ return "DW_OP_reg12";
+ case DW_OP_reg13:
+ return "DW_OP_reg13";
+ case DW_OP_reg14:
+ return "DW_OP_reg14";
+ case DW_OP_reg15:
+ return "DW_OP_reg15";
+ case DW_OP_reg16:
+ return "DW_OP_reg16";
+ case DW_OP_reg17:
+ return "DW_OP_reg17";
+ case DW_OP_reg18:
+ return "DW_OP_reg18";
+ case DW_OP_reg19:
+ return "DW_OP_reg19";
+ case DW_OP_reg20:
+ return "DW_OP_reg20";
+ case DW_OP_reg21:
+ return "DW_OP_reg21";
+ case DW_OP_reg22:
+ return "DW_OP_reg22";
+ case DW_OP_reg23:
+ return "DW_OP_reg23";
+ case DW_OP_reg24:
+ return "DW_OP_reg24";
+ case DW_OP_reg25:
+ return "DW_OP_reg25";
+ case DW_OP_reg26:
+ return "DW_OP_reg26";
+ case DW_OP_reg27:
+ return "DW_OP_reg27";
+ case DW_OP_reg28:
+ return "DW_OP_reg28";
+ case DW_OP_reg29:
+ return "DW_OP_reg29";
+ case DW_OP_reg30:
+ return "DW_OP_reg30";
+ case DW_OP_reg31:
+ return "DW_OP_reg31";
+ case DW_OP_breg0:
+ return "DW_OP_breg0";
+ case DW_OP_breg1:
+ return "DW_OP_breg1";
+ case DW_OP_breg2:
+ return "DW_OP_breg2";
+ case DW_OP_breg3:
+ return "DW_OP_breg3";
+ case DW_OP_breg4:
+ return "DW_OP_breg4";
+ case DW_OP_breg5:
+ return "DW_OP_breg5";
+ case DW_OP_breg6:
+ return "DW_OP_breg6";
+ case DW_OP_breg7:
+ return "DW_OP_breg7";
+ case DW_OP_breg8:
+ return "DW_OP_breg8";
+ case DW_OP_breg9:
+ return "DW_OP_breg9";
+ case DW_OP_breg10:
+ return "DW_OP_breg10";
+ case DW_OP_breg11:
+ return "DW_OP_breg11";
+ case DW_OP_breg12:
+ return "DW_OP_breg12";
+ case DW_OP_breg13:
+ return "DW_OP_breg13";
+ case DW_OP_breg14:
+ return "DW_OP_breg14";
+ case DW_OP_breg15:
+ return "DW_OP_breg15";
+ case DW_OP_breg16:
+ return "DW_OP_breg16";
+ case DW_OP_breg17:
+ return "DW_OP_breg17";
+ case DW_OP_breg18:
+ return "DW_OP_breg18";
+ case DW_OP_breg19:
+ return "DW_OP_breg19";
+ case DW_OP_breg20:
+ return "DW_OP_breg20";
+ case DW_OP_breg21:
+ return "DW_OP_breg21";
+ case DW_OP_breg22:
+ return "DW_OP_breg22";
+ case DW_OP_breg23:
+ return "DW_OP_breg23";
+ case DW_OP_breg24:
+ return "DW_OP_breg24";
+ case DW_OP_breg25:
+ return "DW_OP_breg25";
+ case DW_OP_breg26:
+ return "DW_OP_breg26";
+ case DW_OP_breg27:
+ return "DW_OP_breg27";
+ case DW_OP_breg28:
+ return "DW_OP_breg28";
+ case DW_OP_breg29:
+ return "DW_OP_breg29";
+ case DW_OP_breg30:
+ return "DW_OP_breg30";
+ case DW_OP_breg31:
+ return "DW_OP_breg31";
+ case DW_OP_regx:
+ return "DW_OP_regx";
+ case DW_OP_fbreg:
+ return "DW_OP_fbreg";
+ case DW_OP_bregx:
+ return "DW_OP_bregx";
+ case DW_OP_piece:
+ return "DW_OP_piece";
+ case DW_OP_deref_size:
+ return "DW_OP_deref_size";
+ case DW_OP_xderef_size:
+ return "DW_OP_xderef_size";
+ case DW_OP_nop:
+ return "DW_OP_nop";
default:
- return "DW_AT_<unknown>";
+ return "OP_<unknown>";
}
}
-/* Convert a DWARF value form code into its string name. */
-static const char *
-dwarf_form_name (form)
- register unsigned form;
+/* Return a pointer to a newly allocated location description. Location
+ descriptions are simple expression terms that can be strung
+ together to form more complicated location (address) descriptions. */
+
+static inline dw_loc_descr_ref
+new_loc_descr (op, oprnd1, oprnd2)
+ register enum dwarf_location_atom op;
+ register unsigned long oprnd1;
+ register unsigned long oprnd2;
{
- switch (form)
+ register dw_loc_descr_ref descr
+ = (dw_loc_descr_ref) xmalloc (sizeof (dw_loc_descr_node));
+
+ descr->dw_loc_next = NULL;
+ descr->dw_loc_opc = op;
+ descr->dw_loc_oprnd1.val_class = dw_val_class_unsigned_const;
+ descr->dw_loc_oprnd1.v.val_unsigned = oprnd1;
+ descr->dw_loc_oprnd2.val_class = dw_val_class_unsigned_const;
+ descr->dw_loc_oprnd2.v.val_unsigned = oprnd2;
+
+ return descr;
+}
+
+/* Add a location description term to a location description expression. */
+
+static inline void
+add_loc_descr (list_head, descr)
+ register dw_loc_descr_ref *list_head;
+ register dw_loc_descr_ref descr;
+{
+ register dw_loc_descr_ref *d;
+
+ /* Find the end of the chain. */
+ for (d = list_head; (*d) != NULL; d = &(*d)->dw_loc_next)
+ ;
+
+ *d = descr;
+}
+
+/* Return the size of a location descriptor. */
+
+static unsigned long
+size_of_loc_descr (loc)
+ register dw_loc_descr_ref loc;
+{
+ register unsigned long size = 1;
+
+ switch (loc->dw_loc_opc)
{
- case DW_FORM_addr:
- return "DW_FORM_addr";
- case DW_FORM_block2:
- return "DW_FORM_block2";
- case DW_FORM_block4:
- return "DW_FORM_block4";
- case DW_FORM_data2:
- return "DW_FORM_data2";
- case DW_FORM_data4:
- return "DW_FORM_data4";
- case DW_FORM_data8:
- return "DW_FORM_data8";
- case DW_FORM_string:
- return "DW_FORM_string";
- case DW_FORM_block:
- return "DW_FORM_block";
- case DW_FORM_block1:
- return "DW_FORM_block1";
- case DW_FORM_data1:
- return "DW_FORM_data1";
- case DW_FORM_flag:
- return "DW_FORM_flag";
- case DW_FORM_sdata:
- return "DW_FORM_sdata";
- case DW_FORM_strp:
- return "DW_FORM_strp";
- case DW_FORM_udata:
- return "DW_FORM_udata";
- case DW_FORM_ref_addr:
- return "DW_FORM_ref_addr";
- case DW_FORM_ref1:
- return "DW_FORM_ref1";
- case DW_FORM_ref2:
- return "DW_FORM_ref2";
- case DW_FORM_ref4:
- return "DW_FORM_ref4";
- case DW_FORM_ref8:
- return "DW_FORM_ref8";
- case DW_FORM_ref_udata:
- return "DW_FORM_ref_udata";
- case DW_FORM_indirect:
- return "DW_FORM_indirect";
+ case DW_OP_addr:
+ size += DWARF2_ADDR_SIZE;
+ break;
+ case DW_OP_const1u:
+ case DW_OP_const1s:
+ size += 1;
+ break;
+ case DW_OP_const2u:
+ case DW_OP_const2s:
+ size += 2;
+ break;
+ case DW_OP_const4u:
+ case DW_OP_const4s:
+ size += 4;
+ break;
+ case DW_OP_const8u:
+ case DW_OP_const8s:
+ size += 8;
+ break;
+ case DW_OP_constu:
+ size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
+ break;
+ case DW_OP_consts:
+ size += size_of_sleb128 (loc->dw_loc_oprnd1.v.val_int);
+ break;
+ case DW_OP_pick:
+ size += 1;
+ break;
+ case DW_OP_plus_uconst:
+ size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
+ break;
+ case DW_OP_skip:
+ case DW_OP_bra:
+ size += 2;
+ break;
+ case DW_OP_breg0:
+ case DW_OP_breg1:
+ case DW_OP_breg2:
+ case DW_OP_breg3:
+ case DW_OP_breg4:
+ case DW_OP_breg5:
+ case DW_OP_breg6:
+ case DW_OP_breg7:
+ case DW_OP_breg8:
+ case DW_OP_breg9:
+ case DW_OP_breg10:
+ case DW_OP_breg11:
+ case DW_OP_breg12:
+ case DW_OP_breg13:
+ case DW_OP_breg14:
+ case DW_OP_breg15:
+ case DW_OP_breg16:
+ case DW_OP_breg17:
+ case DW_OP_breg18:
+ case DW_OP_breg19:
+ case DW_OP_breg20:
+ case DW_OP_breg21:
+ case DW_OP_breg22:
+ case DW_OP_breg23:
+ case DW_OP_breg24:
+ case DW_OP_breg25:
+ case DW_OP_breg26:
+ case DW_OP_breg27:
+ case DW_OP_breg28:
+ case DW_OP_breg29:
+ case DW_OP_breg30:
+ case DW_OP_breg31:
+ size += size_of_sleb128 (loc->dw_loc_oprnd1.v.val_int);
+ break;
+ case DW_OP_regx:
+ size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
+ break;
+ case DW_OP_fbreg:
+ size += size_of_sleb128 (loc->dw_loc_oprnd1.v.val_int);
+ break;
+ case DW_OP_bregx:
+ size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
+ size += size_of_sleb128 (loc->dw_loc_oprnd2.v.val_int);
+ break;
+ case DW_OP_piece:
+ size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
+ break;
+ case DW_OP_deref_size:
+ case DW_OP_xderef_size:
+ size += 1;
+ break;
default:
- return "DW_FORM_<unknown>";
+ break;
}
+
+ return size;
}
-/* Convert a DWARF stack opcode into its string name. */
+/* Return the size of a series of location descriptors. */
-static const char *
-dwarf_stack_op_name (op)
- register unsigned op;
+static unsigned long
+size_of_locs (loc)
+ register dw_loc_descr_ref loc;
{
- switch (op)
+ register unsigned long size = 0;
+
+ for (; loc != NULL; loc = loc->dw_loc_next)
+ size += size_of_loc_descr (loc);
+
+ return size;
+}
+
+/* Output location description stack opcode's operands (if any). */
+
+static void
+output_loc_operands (loc)
+ register dw_loc_descr_ref loc;
+{
+ register dw_val_ref val1 = &loc->dw_loc_oprnd1;
+ register dw_val_ref val2 = &loc->dw_loc_oprnd2;
+
+ switch (loc->dw_loc_opc)
{
+#ifdef DWARF2_DEBUGGING_INFO
+ case DW_OP_addr:
+ ASM_OUTPUT_DWARF_ADDR_CONST (asm_out_file, val1->v.val_addr);
+ fputc ('\n', asm_out_file);
+ break;
+ case DW_OP_const2u:
+ case DW_OP_const2s:
+ ASM_OUTPUT_DWARF_DATA2 (asm_out_file, val1->v.val_int);
+ fputc ('\n', asm_out_file);
+ break;
+ case DW_OP_const4u:
+ case DW_OP_const4s:
+ ASM_OUTPUT_DWARF_DATA4 (asm_out_file, val1->v.val_int);
+ fputc ('\n', asm_out_file);
+ break;
+ case DW_OP_const8u:
+ case DW_OP_const8s:
+ abort ();
+ fputc ('\n', asm_out_file);
+ break;
+ case DW_OP_skip:
+ case DW_OP_bra:
+ ASM_OUTPUT_DWARF_DATA2 (asm_out_file, val1->v.val_int);
+ fputc ('\n', asm_out_file);
+ break;
+#else
case DW_OP_addr:
- return "DW_OP_addr";
- case DW_OP_deref:
- return "DW_OP_deref";
- case DW_OP_const1u:
- return "DW_OP_const1u";
- case DW_OP_const1s:
- return "DW_OP_const1s";
case DW_OP_const2u:
- return "DW_OP_const2u";
case DW_OP_const2s:
- return "DW_OP_const2s";
case DW_OP_const4u:
- return "DW_OP_const4u";
case DW_OP_const4s:
- return "DW_OP_const4s";
case DW_OP_const8u:
- return "DW_OP_const8u";
case DW_OP_const8s:
- return "DW_OP_const8s";
+ case DW_OP_skip:
+ case DW_OP_bra:
+ /* We currently don't make any attempt to make sure these are
+ aligned properly like we do for the main unwind info, so
+ don't support emitting things larger than a byte if we're
+ only doing unwinding. */
+ abort ();
+#endif
+ case DW_OP_const1u:
+ case DW_OP_const1s:
+ ASM_OUTPUT_DWARF_DATA1 (asm_out_file, val1->v.val_flag);
+ fputc ('\n', asm_out_file);
+ break;
case DW_OP_constu:
- return "DW_OP_constu";
+ output_uleb128 (val1->v.val_unsigned);
+ fputc ('\n', asm_out_file);
+ break;
case DW_OP_consts:
- return "DW_OP_consts";
- case DW_OP_dup:
- return "DW_OP_dup";
- case DW_OP_drop:
- return "DW_OP_drop";
- case DW_OP_over:
- return "DW_OP_over";
+ output_sleb128 (val1->v.val_int);
+ fputc ('\n', asm_out_file);
+ break;
case DW_OP_pick:
- return "DW_OP_pick";
- case DW_OP_swap:
- return "DW_OP_swap";
- case DW_OP_rot:
- return "DW_OP_rot";
- case DW_OP_xderef:
- return "DW_OP_xderef";
- case DW_OP_abs:
- return "DW_OP_abs";
- case DW_OP_and:
- return "DW_OP_and";
- case DW_OP_div:
- return "DW_OP_div";
- case DW_OP_minus:
- return "DW_OP_minus";
- case DW_OP_mod:
- return "DW_OP_mod";
- case DW_OP_mul:
- return "DW_OP_mul";
- case DW_OP_neg:
- return "DW_OP_neg";
- case DW_OP_not:
- return "DW_OP_not";
- case DW_OP_or:
- return "DW_OP_or";
- case DW_OP_plus:
- return "DW_OP_plus";
+ ASM_OUTPUT_DWARF_DATA1 (asm_out_file, val1->v.val_int);
+ fputc ('\n', asm_out_file);
+ break;
case DW_OP_plus_uconst:
- return "DW_OP_plus_uconst";
- case DW_OP_shl:
- return "DW_OP_shl";
- case DW_OP_shr:
- return "DW_OP_shr";
- case DW_OP_shra:
- return "DW_OP_shra";
- case DW_OP_xor:
- return "DW_OP_xor";
- case DW_OP_bra:
- return "DW_OP_bra";
- case DW_OP_eq:
- return "DW_OP_eq";
- case DW_OP_ge:
- return "DW_OP_ge";
- case DW_OP_gt:
- return "DW_OP_gt";
- case DW_OP_le:
- return "DW_OP_le";
- case DW_OP_lt:
- return "DW_OP_lt";
- case DW_OP_ne:
- return "DW_OP_ne";
- case DW_OP_skip:
- return "DW_OP_skip";
- case DW_OP_lit0:
- return "DW_OP_lit0";
- case DW_OP_lit1:
- return "DW_OP_lit1";
- case DW_OP_lit2:
- return "DW_OP_lit2";
- case DW_OP_lit3:
- return "DW_OP_lit3";
- case DW_OP_lit4:
- return "DW_OP_lit4";
- case DW_OP_lit5:
- return "DW_OP_lit5";
- case DW_OP_lit6:
- return "DW_OP_lit6";
- case DW_OP_lit7:
- return "DW_OP_lit7";
- case DW_OP_lit8:
- return "DW_OP_lit8";
- case DW_OP_lit9:
- return "DW_OP_lit9";
- case DW_OP_lit10:
- return "DW_OP_lit10";
- case DW_OP_lit11:
- return "DW_OP_lit11";
- case DW_OP_lit12:
- return "DW_OP_lit12";
- case DW_OP_lit13:
- return "DW_OP_lit13";
- case DW_OP_lit14:
- return "DW_OP_lit14";
- case DW_OP_lit15:
- return "DW_OP_lit15";
- case DW_OP_lit16:
- return "DW_OP_lit16";
- case DW_OP_lit17:
- return "DW_OP_lit17";
- case DW_OP_lit18:
- return "DW_OP_lit18";
- case DW_OP_lit19:
- return "DW_OP_lit19";
- case DW_OP_lit20:
- return "DW_OP_lit20";
- case DW_OP_lit21:
- return "DW_OP_lit21";
- case DW_OP_lit22:
- return "DW_OP_lit22";
- case DW_OP_lit23:
- return "DW_OP_lit23";
- case DW_OP_lit24:
- return "DW_OP_lit24";
- case DW_OP_lit25:
- return "DW_OP_lit25";
- case DW_OP_lit26:
- return "DW_OP_lit26";
- case DW_OP_lit27:
- return "DW_OP_lit27";
- case DW_OP_lit28:
- return "DW_OP_lit28";
- case DW_OP_lit29:
- return "DW_OP_lit29";
- case DW_OP_lit30:
- return "DW_OP_lit30";
- case DW_OP_lit31:
- return "DW_OP_lit31";
- case DW_OP_reg0:
- return "DW_OP_reg0";
- case DW_OP_reg1:
- return "DW_OP_reg1";
- case DW_OP_reg2:
- return "DW_OP_reg2";
- case DW_OP_reg3:
- return "DW_OP_reg3";
- case DW_OP_reg4:
- return "DW_OP_reg4";
- case DW_OP_reg5:
- return "DW_OP_reg5";
- case DW_OP_reg6:
- return "DW_OP_reg6";
- case DW_OP_reg7:
- return "DW_OP_reg7";
- case DW_OP_reg8:
- return "DW_OP_reg8";
- case DW_OP_reg9:
- return "DW_OP_reg9";
- case DW_OP_reg10:
- return "DW_OP_reg10";
- case DW_OP_reg11:
- return "DW_OP_reg11";
- case DW_OP_reg12:
- return "DW_OP_reg12";
- case DW_OP_reg13:
- return "DW_OP_reg13";
- case DW_OP_reg14:
- return "DW_OP_reg14";
- case DW_OP_reg15:
- return "DW_OP_reg15";
- case DW_OP_reg16:
- return "DW_OP_reg16";
- case DW_OP_reg17:
- return "DW_OP_reg17";
- case DW_OP_reg18:
- return "DW_OP_reg18";
- case DW_OP_reg19:
- return "DW_OP_reg19";
- case DW_OP_reg20:
- return "DW_OP_reg20";
- case DW_OP_reg21:
- return "DW_OP_reg21";
- case DW_OP_reg22:
- return "DW_OP_reg22";
- case DW_OP_reg23:
- return "DW_OP_reg23";
- case DW_OP_reg24:
- return "DW_OP_reg24";
- case DW_OP_reg25:
- return "DW_OP_reg25";
- case DW_OP_reg26:
- return "DW_OP_reg26";
- case DW_OP_reg27:
- return "DW_OP_reg27";
- case DW_OP_reg28:
- return "DW_OP_reg28";
- case DW_OP_reg29:
- return "DW_OP_reg29";
- case DW_OP_reg30:
- return "DW_OP_reg30";
- case DW_OP_reg31:
- return "DW_OP_reg31";
+ output_uleb128 (val1->v.val_unsigned);
+ fputc ('\n', asm_out_file);
+ break;
case DW_OP_breg0:
- return "DW_OP_breg0";
case DW_OP_breg1:
- return "DW_OP_breg1";
case DW_OP_breg2:
- return "DW_OP_breg2";
case DW_OP_breg3:
- return "DW_OP_breg3";
case DW_OP_breg4:
- return "DW_OP_breg4";
case DW_OP_breg5:
- return "DW_OP_breg5";
case DW_OP_breg6:
- return "DW_OP_breg6";
case DW_OP_breg7:
- return "DW_OP_breg7";
case DW_OP_breg8:
- return "DW_OP_breg8";
case DW_OP_breg9:
- return "DW_OP_breg9";
case DW_OP_breg10:
- return "DW_OP_breg10";
case DW_OP_breg11:
- return "DW_OP_breg11";
case DW_OP_breg12:
- return "DW_OP_breg12";
case DW_OP_breg13:
- return "DW_OP_breg13";
case DW_OP_breg14:
- return "DW_OP_breg14";
case DW_OP_breg15:
- return "DW_OP_breg15";
case DW_OP_breg16:
- return "DW_OP_breg16";
case DW_OP_breg17:
- return "DW_OP_breg17";
case DW_OP_breg18:
- return "DW_OP_breg18";
case DW_OP_breg19:
- return "DW_OP_breg19";
case DW_OP_breg20:
- return "DW_OP_breg20";
case DW_OP_breg21:
- return "DW_OP_breg21";
case DW_OP_breg22:
- return "DW_OP_breg22";
case DW_OP_breg23:
- return "DW_OP_breg23";
case DW_OP_breg24:
- return "DW_OP_breg24";
case DW_OP_breg25:
- return "DW_OP_breg25";
case DW_OP_breg26:
- return "DW_OP_breg26";
case DW_OP_breg27:
- return "DW_OP_breg27";
case DW_OP_breg28:
- return "DW_OP_breg28";
case DW_OP_breg29:
- return "DW_OP_breg29";
case DW_OP_breg30:
- return "DW_OP_breg30";
case DW_OP_breg31:
- return "DW_OP_breg31";
+ output_sleb128 (val1->v.val_int);
+ fputc ('\n', asm_out_file);
+ break;
case DW_OP_regx:
- return "DW_OP_regx";
+ output_uleb128 (val1->v.val_unsigned);
+ fputc ('\n', asm_out_file);
+ break;
case DW_OP_fbreg:
- return "DW_OP_fbreg";
+ output_sleb128 (val1->v.val_int);
+ fputc ('\n', asm_out_file);
+ break;
case DW_OP_bregx:
- return "DW_OP_bregx";
+ output_uleb128 (val1->v.val_unsigned);
+ fputc ('\n', asm_out_file);
+ output_sleb128 (val2->v.val_int);
+ fputc ('\n', asm_out_file);
+ break;
case DW_OP_piece:
- return "DW_OP_piece";
+ output_uleb128 (val1->v.val_unsigned);
+ fputc ('\n', asm_out_file);
+ break;
case DW_OP_deref_size:
- return "DW_OP_deref_size";
case DW_OP_xderef_size:
- return "DW_OP_xderef_size";
- case DW_OP_nop:
- return "DW_OP_nop";
+ ASM_OUTPUT_DWARF_DATA1 (asm_out_file, val1->v.val_flag);
+ fputc ('\n', asm_out_file);
+ break;
+ default:
+ /* Other codes have no operands. */
+ break;
+ }
+}
+
+/* Output a sequence of location operations. */
+
+static void
+output_loc_sequence (loc)
+ dw_loc_descr_ref loc;
+{
+ for (; loc != NULL; loc = loc->dw_loc_next)
+ {
+ /* Output the opcode. */
+ ASM_OUTPUT_DWARF_DATA1 (asm_out_file, loc->dw_loc_opc);
+ if (flag_debug_asm)
+ fprintf (asm_out_file, "\t%s %s", ASM_COMMENT_START,
+ dwarf_stack_op_name (loc->dw_loc_opc));
+
+ fputc ('\n', asm_out_file);
+
+ /* Output the operand(s) (if any). */
+ output_loc_operands (loc);
+ }
+}
+
+/* This routine will generate the correct assembly data for a location
+ description based on a cfi entry with a complex address. */
+
+static void
+output_cfa_loc (cfi)
+ dw_cfi_ref cfi;
+{
+ dw_loc_descr_ref loc;
+ unsigned long size;
+
+ /* Output the size of the block. */
+ loc = cfi->dw_cfi_oprnd1.dw_cfi_loc;
+ size = size_of_locs (loc);
+ output_uleb128 (size);
+ fputc ('\n', asm_out_file);
+
+ /* Now output the operations themselves. */
+ output_loc_sequence (loc);
+}
+
+/* This function builds a dwarf location descriptor seqeunce from
+ a dw_cfa_location. */
+
+static struct dw_loc_descr_struct *
+build_cfa_loc (cfa)
+ dw_cfa_location *cfa;
+{
+ struct dw_loc_descr_struct *head, *tmp;
+
+ if (cfa->indirect == 0)
+ abort ();
+
+ if (cfa->base_offset)
+ head = new_loc_descr (DW_OP_breg0 + cfa->reg, cfa->base_offset, 0);
+ else
+ head = new_loc_descr (DW_OP_reg0 + cfa->reg, 0, 0);
+ head->dw_loc_oprnd1.val_class = dw_val_class_const;
+ tmp = new_loc_descr (DW_OP_deref, 0, 0);
+ add_loc_descr (&head, tmp);
+ if (cfa->offset != 0)
+ {
+ tmp = new_loc_descr (DW_OP_plus_uconst, cfa->offset, 0);
+ add_loc_descr (&head, tmp);
+ }
+ return head;
+}
+
+/* This function fills in aa dw_cfa_location structure from a
+ dwarf location descriptor sequence. */
+
+static void
+get_cfa_from_loc_descr (cfa, loc)
+ dw_cfa_location *cfa;
+ struct dw_loc_descr_struct * loc;
+{
+ struct dw_loc_descr_struct * ptr;
+ cfa->offset = 0;
+ cfa->base_offset = 0;
+ cfa->indirect = 0;
+ cfa->reg = -1;
+
+ for (ptr = loc; ptr != NULL; ptr = ptr->dw_loc_next)
+ {
+ enum dwarf_location_atom op = ptr->dw_loc_opc;
+ switch (op)
+ {
+ case DW_OP_reg0:
+ case DW_OP_reg1:
+ case DW_OP_reg2:
+ case DW_OP_reg3:
+ case DW_OP_reg4:
+ case DW_OP_reg5:
+ case DW_OP_reg6:
+ case DW_OP_reg7:
+ case DW_OP_reg8:
+ case DW_OP_reg9:
+ case DW_OP_reg10:
+ case DW_OP_reg11:
+ case DW_OP_reg12:
+ case DW_OP_reg13:
+ case DW_OP_reg14:
+ case DW_OP_reg15:
+ case DW_OP_reg16:
+ case DW_OP_reg17:
+ case DW_OP_reg18:
+ case DW_OP_reg19:
+ case DW_OP_reg20:
+ case DW_OP_reg21:
+ case DW_OP_reg22:
+ case DW_OP_reg23:
+ case DW_OP_reg24:
+ case DW_OP_reg25:
+ case DW_OP_reg26:
+ case DW_OP_reg27:
+ case DW_OP_reg28:
+ case DW_OP_reg29:
+ case DW_OP_reg30:
+ case DW_OP_reg31:
+ cfa->reg = op - DW_OP_reg0;
+ break;
+ case DW_OP_regx:
+ cfa->reg = ptr->dw_loc_oprnd1.v.val_int;
+ break;
+ case DW_OP_breg0:
+ case DW_OP_breg1:
+ case DW_OP_breg2:
+ case DW_OP_breg3:
+ case DW_OP_breg4:
+ case DW_OP_breg5:
+ case DW_OP_breg6:
+ case DW_OP_breg7:
+ case DW_OP_breg8:
+ case DW_OP_breg9:
+ case DW_OP_breg10:
+ case DW_OP_breg11:
+ case DW_OP_breg12:
+ case DW_OP_breg13:
+ case DW_OP_breg14:
+ case DW_OP_breg15:
+ case DW_OP_breg16:
+ case DW_OP_breg17:
+ case DW_OP_breg18:
+ case DW_OP_breg19:
+ case DW_OP_breg20:
+ case DW_OP_breg21:
+ case DW_OP_breg22:
+ case DW_OP_breg23:
+ case DW_OP_breg24:
+ case DW_OP_breg25:
+ case DW_OP_breg26:
+ case DW_OP_breg27:
+ case DW_OP_breg28:
+ case DW_OP_breg29:
+ case DW_OP_breg30:
+ case DW_OP_breg31:
+ cfa->reg = op - DW_OP_breg0;
+ cfa->base_offset = ptr->dw_loc_oprnd1.v.val_int;
+ break;
+ case DW_OP_bregx:
+ cfa->reg = ptr->dw_loc_oprnd1.v.val_int;
+ cfa->base_offset = ptr->dw_loc_oprnd2.v.val_int;
+ break;
+ case DW_OP_deref:
+ cfa->indirect = 1;
+ break;
+ case DW_OP_plus_uconst:
+ cfa->offset = ptr->dw_loc_oprnd1.v.val_unsigned;
+ break;
+ default:
+ fatal ("DW_LOC_OP %s not implememnted yet.\n",
+ dwarf_stack_op_name (ptr->dw_loc_opc));
+ }
+ }
+}
+#endif /* .debug_frame support */
+\f
+/* And now, the support for symbolic debugging information. */
+#ifdef DWARF2_DEBUGGING_INFO
+
+/* NOTE: In the comments in this file, many references are made to
+ "Debugging Information Entries". This term is abbreviated as `DIE'
+ throughout the remainder of this file. */
+
+/* An internal representation of the DWARF output is built, and then
+ walked to generate the DWARF debugging info. The walk of the internal
+ representation is done after the entire program has been compiled.
+ The types below are used to describe the internal representation. */
+
+/* Various DIE's use offsets relative to the beginning of the
+ .debug_info section to refer to each other. */
+
+typedef long int dw_offset;
+
+/* Define typedefs here to avoid circular dependencies. */
+
+typedef struct dw_attr_struct *dw_attr_ref;
+typedef struct dw_line_info_struct *dw_line_info_ref;
+typedef struct dw_separate_line_info_struct *dw_separate_line_info_ref;
+typedef struct pubname_struct *pubname_ref;
+typedef dw_die_ref *arange_ref;
+
+/* Each entry in the line_info_table maintains the file and
+ line number associated with the label generated for that
+ entry. The label gives the PC value associated with
+ the line number entry. */
+
+typedef struct dw_line_info_struct
+{
+ unsigned long dw_file_num;
+ unsigned long dw_line_num;
+}
+dw_line_info_entry;
+
+/* Line information for functions in separate sections; each one gets its
+ own sequence. */
+typedef struct dw_separate_line_info_struct
+{
+ unsigned long dw_file_num;
+ unsigned long dw_line_num;
+ unsigned long function;
+}
+dw_separate_line_info_entry;
+
+/* Each DIE attribute has a field specifying the attribute kind,
+ a link to the next attribute in the chain, and an attribute value.
+ Attributes are typically linked below the DIE they modify. */
+
+typedef struct dw_attr_struct
+{
+ enum dwarf_attribute dw_attr;
+ dw_attr_ref dw_attr_next;
+ dw_val_node dw_attr_val;
+}
+dw_attr_node;
+
+/* The Debugging Information Entry (DIE) structure */
+
+typedef struct die_struct
+{
+ enum dwarf_tag die_tag;
+ dw_attr_ref die_attr;
+ dw_die_ref die_parent;
+ dw_die_ref die_child;
+ dw_die_ref die_sib;
+ dw_offset die_offset;
+ unsigned long die_abbrev;
+}
+die_node;
+
+/* The pubname structure */
+
+typedef struct pubname_struct
+{
+ dw_die_ref die;
+ char * name;
+}
+pubname_entry;
+
+/* The limbo die list structure. */
+typedef struct limbo_die_struct
+{
+ dw_die_ref die;
+ struct limbo_die_struct *next;
+}
+limbo_die_node;
+
+/* How to start an assembler comment. */
+#ifndef ASM_COMMENT_START
+#define ASM_COMMENT_START ";#"
+#endif
+
+/* Define a macro which returns non-zero for a TYPE_DECL which was
+ implicitly generated for a tagged type.
+
+ Note that unlike the gcc front end (which generates a NULL named
+ TYPE_DECL node for each complete tagged type, each array type, and
+ each function type node created) the g++ front end generates a
+ _named_ TYPE_DECL node for each tagged type node created.
+ These TYPE_DECLs have DECL_ARTIFICIAL set, so we know not to
+ generate a DW_TAG_typedef DIE for them. */
+
+#define TYPE_DECL_IS_STUB(decl) \
+ (DECL_NAME (decl) == NULL_TREE \
+ || (DECL_ARTIFICIAL (decl) \
+ && is_tagged_type (TREE_TYPE (decl)) \
+ && ((decl == TYPE_STUB_DECL (TREE_TYPE (decl))) \
+ /* This is necessary for stub decls that \
+ appear in nested inline functions. */ \
+ || (DECL_ABSTRACT_ORIGIN (decl) != NULL_TREE \
+ && (decl_ultimate_origin (decl) \
+ == TYPE_STUB_DECL (TREE_TYPE (decl)))))))
+
+/* Information concerning the compilation unit's programming
+ language, and compiler version. */
+
+extern int flag_traditional;
+
+/* Fixed size portion of the DWARF compilation unit header. */
+#define DWARF_COMPILE_UNIT_HEADER_SIZE (2 * DWARF_OFFSET_SIZE + 3)
+
+/* Fixed size portion of debugging line information prolog. */
+#define DWARF_LINE_PROLOG_HEADER_SIZE 5
+
+/* Fixed size portion of public names info. */
+#define DWARF_PUBNAMES_HEADER_SIZE (2 * DWARF_OFFSET_SIZE + 2)
+
+/* Fixed size portion of the address range info. */
+#define DWARF_ARANGES_HEADER_SIZE \
+ (DWARF_ROUND (2 * DWARF_OFFSET_SIZE + 4, DWARF2_ADDR_SIZE * 2) \
+ - DWARF_OFFSET_SIZE)
+
+/* Size of padding portion in the address range info. It must be
+ aligned to twice the pointer size. */
+#define DWARF_ARANGES_PAD_SIZE \
+ (DWARF_ROUND (2 * DWARF_OFFSET_SIZE + 4, DWARF2_ADDR_SIZE * 2) \
+ - (2 * DWARF_OFFSET_SIZE + 4))
+
+/* The default is to have gcc emit the line number tables. */
+#ifndef DWARF2_ASM_LINE_DEBUG_INFO
+#define DWARF2_ASM_LINE_DEBUG_INFO 0
+#endif
+
+/* Define the architecture-dependent minimum instruction length (in bytes).
+ In this implementation of DWARF, this field is used for information
+ purposes only. Since GCC generates assembly language, we have
+ no a priori knowledge of how many instruction bytes are generated
+ for each source line, and therefore can use only the DW_LNE_set_address
+ and DW_LNS_fixed_advance_pc line information commands. */
+
+#ifndef DWARF_LINE_MIN_INSTR_LENGTH
+#define DWARF_LINE_MIN_INSTR_LENGTH 4
+#endif
+
+/* Minimum line offset in a special line info. opcode.
+ This value was chosen to give a reasonable range of values. */
+#define DWARF_LINE_BASE -10
+
+/* First special line opcde - leave room for the standard opcodes. */
+#define DWARF_LINE_OPCODE_BASE 10
+
+/* Range of line offsets in a special line info. opcode. */
+#define DWARF_LINE_RANGE (254-DWARF_LINE_OPCODE_BASE+1)
+
+/* Flag that indicates the initial value of the is_stmt_start flag.
+ In the present implementation, we do not mark any lines as
+ the beginning of a source statement, because that information
+ is not made available by the GCC front-end. */
+#define DWARF_LINE_DEFAULT_IS_STMT_START 1
+
+/* This location is used by calc_die_sizes() to keep track
+ the offset of each DIE within the .debug_info section. */
+static unsigned long next_die_offset;
+
+/* Record the root of the DIE's built for the current compilation unit. */
+static dw_die_ref comp_unit_die;
+
+/* A list of DIEs with a NULL parent waiting to be relocated. */
+static limbo_die_node *limbo_die_list = 0;
+
+/* Pointer to an array of filenames referenced by this compilation unit. */
+static char **file_table;
+
+/* Total number of entries in the table (i.e. array) pointed to by
+ `file_table'. This is the *total* and includes both used and unused
+ slots. */
+static unsigned file_table_allocated;
+
+/* Number of entries in the file_table which are actually in use. */
+static unsigned file_table_in_use;
+
+/* Size (in elements) of increments by which we may expand the filename
+ table. */
+#define FILE_TABLE_INCREMENT 64
+
+/* Local pointer to the name of the main input file. Initialized in
+ dwarf2out_init. */
+static const char *primary_filename;
+
+/* A pointer to the base of a table of references to DIE's that describe
+ declarations. The table is indexed by DECL_UID() which is a unique
+ number identifying each decl. */
+static dw_die_ref *decl_die_table;
+
+/* Number of elements currently allocated for the decl_die_table. */
+static unsigned decl_die_table_allocated;
+
+/* Number of elements in decl_die_table currently in use. */
+static unsigned decl_die_table_in_use;
+
+/* Size (in elements) of increments by which we may expand the
+ decl_die_table. */
+#define DECL_DIE_TABLE_INCREMENT 256
+
+/* A pointer to the base of a table of references to declaration
+ scopes. This table is a display which tracks the nesting
+ of declaration scopes at the current scope and containing
+ scopes. This table is used to find the proper place to
+ define type declaration DIE's. */
+static tree *decl_scope_table;
+
+/* Number of elements currently allocated for the decl_scope_table. */
+static int decl_scope_table_allocated;
+
+/* Current level of nesting of declaration scopes. */
+static int decl_scope_depth;
+
+/* Size (in elements) of increments by which we may expand the
+ decl_scope_table. */
+#define DECL_SCOPE_TABLE_INCREMENT 64
+
+/* A pointer to the base of a list of references to DIE's that
+ are uniquely identified by their tag, presence/absence of
+ children DIE's, and list of attribute/value pairs. */
+static dw_die_ref *abbrev_die_table;
+
+/* Number of elements currently allocated for abbrev_die_table. */
+static unsigned abbrev_die_table_allocated;
+
+/* Number of elements in type_die_table currently in use. */
+static unsigned abbrev_die_table_in_use;
+
+/* Size (in elements) of increments by which we may expand the
+ abbrev_die_table. */
+#define ABBREV_DIE_TABLE_INCREMENT 256
+
+/* A pointer to the base of a table that contains line information
+ for each source code line in .text in the compilation unit. */
+static dw_line_info_ref line_info_table;
+
+/* Number of elements currently allocated for line_info_table. */
+static unsigned line_info_table_allocated;
+
+/* Number of elements in separate_line_info_table currently in use. */
+static unsigned separate_line_info_table_in_use;
+
+/* A pointer to the base of a table that contains line information
+ for each source code line outside of .text in the compilation unit. */
+static dw_separate_line_info_ref separate_line_info_table;
+
+/* Number of elements currently allocated for separate_line_info_table. */
+static unsigned separate_line_info_table_allocated;
+
+/* Number of elements in line_info_table currently in use. */
+static unsigned line_info_table_in_use;
+
+/* Size (in elements) of increments by which we may expand the
+ line_info_table. */
+#define LINE_INFO_TABLE_INCREMENT 1024
+
+/* A pointer to the base of a table that contains a list of publicly
+ accessible names. */
+static pubname_ref pubname_table;
+
+/* Number of elements currently allocated for pubname_table. */
+static unsigned pubname_table_allocated;
+
+/* Number of elements in pubname_table currently in use. */
+static unsigned pubname_table_in_use;
+
+/* Size (in elements) of increments by which we may expand the
+ pubname_table. */
+#define PUBNAME_TABLE_INCREMENT 64
+
+/* A pointer to the base of a table that contains a list of publicly
+ accessible names. */
+static arange_ref arange_table;
+
+/* Number of elements currently allocated for arange_table. */
+static unsigned arange_table_allocated;
+
+/* Number of elements in arange_table currently in use. */
+static unsigned arange_table_in_use;
+
+/* Size (in elements) of increments by which we may expand the
+ arange_table. */
+#define ARANGE_TABLE_INCREMENT 64
+
+/* A pointer to the base of a list of incomplete types which might be
+ completed at some later time. */
+
+static tree *incomplete_types_list;
+
+/* Number of elements currently allocated for the incomplete_types_list. */
+static unsigned incomplete_types_allocated;
+
+/* Number of elements of incomplete_types_list currently in use. */
+static unsigned incomplete_types;
+
+/* Size (in elements) of increments by which we may expand the incomplete
+ types list. Actually, a single hunk of space of this size should
+ be enough for most typical programs. */
+#define INCOMPLETE_TYPES_INCREMENT 64
+
+/* Record whether the function being analyzed contains inlined functions. */
+static int current_function_has_inlines;
+#if 0 && defined (MIPS_DEBUGGING_INFO)
+static int comp_unit_has_inlines;
+#endif
+
+/* Array of RTXes referenced by the debugging information, which therefore
+ must be kept around forever. We do this rather than perform GC on
+ the dwarf info because almost all of the dwarf info lives forever, and
+ it's easier to support non-GC frontends this way. */
+static varray_type used_rtx_varray;
+
+/* Forward declarations for functions defined in this file. */
+
+static int is_pseudo_reg PARAMS ((rtx));
+static tree type_main_variant PARAMS ((tree));
+static int is_tagged_type PARAMS ((tree));
+static const char *dwarf_tag_name PARAMS ((unsigned));
+static const char *dwarf_attr_name PARAMS ((unsigned));
+static const char *dwarf_form_name PARAMS ((unsigned));
+#if 0
+static const char *dwarf_type_encoding_name PARAMS ((unsigned));
+#endif
+static tree decl_ultimate_origin PARAMS ((tree));
+static tree block_ultimate_origin PARAMS ((tree));
+static tree decl_class_context PARAMS ((tree));
+static void add_dwarf_attr PARAMS ((dw_die_ref, dw_attr_ref));
+static void add_AT_flag PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ unsigned));
+static void add_AT_int PARAMS ((dw_die_ref,
+ enum dwarf_attribute, long));
+static void add_AT_unsigned PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ unsigned long));
+static void add_AT_long_long PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ unsigned long,
+ unsigned long));
+static void add_AT_float PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ unsigned, long *));
+static void add_AT_string PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ const char *));
+static void add_AT_die_ref PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ dw_die_ref));
+static void add_AT_fde_ref PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ unsigned));
+static void add_AT_loc PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ dw_loc_descr_ref));
+static void add_AT_addr PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ rtx));
+static void add_AT_lbl_id PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ const char *));
+static void add_AT_lbl_offset PARAMS ((dw_die_ref,
+ enum dwarf_attribute,
+ const char *));
+static dw_attr_ref get_AT PARAMS ((dw_die_ref,
+ enum dwarf_attribute));
+static const char *get_AT_low_pc PARAMS ((dw_die_ref));
+static const char *get_AT_hi_pc PARAMS ((dw_die_ref));
+static const char *get_AT_string PARAMS ((dw_die_ref,
+ enum dwarf_attribute));
+static int get_AT_flag PARAMS ((dw_die_ref,
+ enum dwarf_attribute));
+static unsigned get_AT_unsigned PARAMS ((dw_die_ref,
+ enum dwarf_attribute));
+static inline dw_die_ref get_AT_ref PARAMS ((dw_die_ref,
+ enum dwarf_attribute));
+static int is_c_family PARAMS ((void));
+static int is_fortran PARAMS ((void));
+static void remove_AT PARAMS ((dw_die_ref,
+ enum dwarf_attribute));
+static void remove_children PARAMS ((dw_die_ref));
+static void add_child_die PARAMS ((dw_die_ref, dw_die_ref));
+static dw_die_ref new_die PARAMS ((enum dwarf_tag, dw_die_ref));
+static dw_die_ref lookup_type_die PARAMS ((tree));
+static void equate_type_number_to_die PARAMS ((tree, dw_die_ref));
+static dw_die_ref lookup_decl_die PARAMS ((tree));
+static void equate_decl_number_to_die PARAMS ((tree, dw_die_ref));
+static void print_spaces PARAMS ((FILE *));
+static void print_die PARAMS ((dw_die_ref, FILE *));
+static void print_dwarf_line_table PARAMS ((FILE *));
+static void add_sibling_attributes PARAMS ((dw_die_ref));
+static void build_abbrev_table PARAMS ((dw_die_ref));
+static unsigned long size_of_string PARAMS ((const char *));
+static int constant_size PARAMS ((long unsigned));
+static unsigned long size_of_die PARAMS ((dw_die_ref));
+static void calc_die_sizes PARAMS ((dw_die_ref));
+static unsigned long size_of_line_prolog PARAMS ((void));
+static unsigned long size_of_pubnames PARAMS ((void));
+static unsigned long size_of_aranges PARAMS ((void));
+static enum dwarf_form value_format PARAMS ((dw_attr_ref));
+static void output_value_format PARAMS ((dw_attr_ref));
+static void output_abbrev_section PARAMS ((void));
+static void output_die PARAMS ((dw_die_ref));
+static void output_compilation_unit_header PARAMS ((void));
+static const char *dwarf2_name PARAMS ((tree, int));
+static void add_pubname PARAMS ((tree, dw_die_ref));
+static void output_pubnames PARAMS ((void));
+static void add_arange PARAMS ((tree, dw_die_ref));
+static void output_aranges PARAMS ((void));
+static void output_line_info PARAMS ((void));
+static dw_die_ref base_type_die PARAMS ((tree));
+static tree root_type PARAMS ((tree));
+static int is_base_type PARAMS ((tree));
+static dw_die_ref modified_type_die PARAMS ((tree, int, int, dw_die_ref));
+static int type_is_enum PARAMS ((tree));
+static unsigned int reg_number PARAMS ((rtx));
+static dw_loc_descr_ref reg_loc_descriptor PARAMS ((rtx));
+static dw_loc_descr_ref based_loc_descr PARAMS ((unsigned, long));
+static int is_based_loc PARAMS ((rtx));
+static dw_loc_descr_ref mem_loc_descriptor PARAMS ((rtx, enum machine_mode mode));
+static dw_loc_descr_ref concat_loc_descriptor PARAMS ((rtx, rtx));
+static dw_loc_descr_ref loc_descriptor PARAMS ((rtx));
+static HOST_WIDE_INT ceiling PARAMS ((HOST_WIDE_INT, unsigned int));
+static tree field_type PARAMS ((tree));
+static unsigned int simple_type_align_in_bits PARAMS ((tree));
+static unsigned HOST_WIDE_INT simple_type_size_in_bits PARAMS ((tree));
+static HOST_WIDE_INT field_byte_offset PARAMS ((tree));
+static void add_AT_location_description PARAMS ((dw_die_ref,
+ enum dwarf_attribute, rtx));
+static void add_data_member_location_attribute PARAMS ((dw_die_ref, tree));
+static void add_const_value_attribute PARAMS ((dw_die_ref, rtx));
+static void add_location_or_const_value_attribute PARAMS ((dw_die_ref, tree));
+static void add_name_attribute PARAMS ((dw_die_ref, const char *));
+static void add_bound_info PARAMS ((dw_die_ref,
+ enum dwarf_attribute, tree));
+static void add_subscript_info PARAMS ((dw_die_ref, tree));
+static void add_byte_size_attribute PARAMS ((dw_die_ref, tree));
+static void add_bit_offset_attribute PARAMS ((dw_die_ref, tree));
+static void add_bit_size_attribute PARAMS ((dw_die_ref, tree));
+static void add_prototyped_attribute PARAMS ((dw_die_ref, tree));
+static void add_abstract_origin_attribute PARAMS ((dw_die_ref, tree));
+static void add_pure_or_virtual_attribute PARAMS ((dw_die_ref, tree));
+static void add_src_coords_attributes PARAMS ((dw_die_ref, tree));
+static void add_name_and_src_coords_attributes PARAMS ((dw_die_ref, tree));
+static void push_decl_scope PARAMS ((tree));
+static dw_die_ref scope_die_for PARAMS ((tree, dw_die_ref));
+static void pop_decl_scope PARAMS ((void));
+static void add_type_attribute PARAMS ((dw_die_ref, tree, int, int,
+ dw_die_ref));
+static const char *type_tag PARAMS ((tree));
+static tree member_declared_type PARAMS ((tree));
+#if 0
+static const char *decl_start_label PARAMS ((tree));
+#endif
+static void gen_array_type_die PARAMS ((tree, dw_die_ref));
+static void gen_set_type_die PARAMS ((tree, dw_die_ref));
+#if 0
+static void gen_entry_point_die PARAMS ((tree, dw_die_ref));
+#endif
+static void gen_inlined_enumeration_type_die PARAMS ((tree, dw_die_ref));
+static void gen_inlined_structure_type_die PARAMS ((tree, dw_die_ref));
+static void gen_inlined_union_type_die PARAMS ((tree, dw_die_ref));
+static void gen_enumeration_type_die PARAMS ((tree, dw_die_ref));
+static dw_die_ref gen_formal_parameter_die PARAMS ((tree, dw_die_ref));
+static void gen_unspecified_parameters_die PARAMS ((tree, dw_die_ref));
+static void gen_formal_types_die PARAMS ((tree, dw_die_ref));
+static void gen_subprogram_die PARAMS ((tree, dw_die_ref));
+static void gen_variable_die PARAMS ((tree, dw_die_ref));
+static void gen_label_die PARAMS ((tree, dw_die_ref));
+static void gen_lexical_block_die PARAMS ((tree, dw_die_ref, int));
+static void gen_inlined_subroutine_die PARAMS ((tree, dw_die_ref, int));
+static void gen_field_die PARAMS ((tree, dw_die_ref));
+static void gen_ptr_to_mbr_type_die PARAMS ((tree, dw_die_ref));
+static dw_die_ref gen_compile_unit_die PARAMS ((const char *));
+static void gen_string_type_die PARAMS ((tree, dw_die_ref));
+static void gen_inheritance_die PARAMS ((tree, dw_die_ref));
+static void gen_member_die PARAMS ((tree, dw_die_ref));
+static void gen_struct_or_union_type_die PARAMS ((tree, dw_die_ref));
+static void gen_subroutine_type_die PARAMS ((tree, dw_die_ref));
+static void gen_typedef_die PARAMS ((tree, dw_die_ref));
+static void gen_type_die PARAMS ((tree, dw_die_ref));
+static void gen_tagged_type_instantiation_die PARAMS ((tree, dw_die_ref));
+static void gen_block_die PARAMS ((tree, dw_die_ref, int));
+static void decls_for_scope PARAMS ((tree, dw_die_ref, int));
+static int is_redundant_typedef PARAMS ((tree));
+static void gen_decl_die PARAMS ((tree, dw_die_ref));
+static unsigned lookup_filename PARAMS ((const char *));
+static void add_incomplete_type PARAMS ((tree));
+static void retry_incomplete_types PARAMS ((void));
+static void gen_type_die_for_member PARAMS ((tree, tree, dw_die_ref));
+static void gen_abstract_function PARAMS ((tree));
+static rtx save_rtx PARAMS ((rtx));
+static void splice_child_die PARAMS ((dw_die_ref, dw_die_ref));
+static void reverse_die_lists PARAMS ((dw_die_ref));
+
+/* Section names used to hold DWARF debugging information. */
+#ifndef DEBUG_INFO_SECTION
+#define DEBUG_INFO_SECTION ".debug_info"
+#endif
+#ifndef ABBREV_SECTION
+#define ABBREV_SECTION ".debug_abbrev"
+#endif
+#ifndef ARANGES_SECTION
+#define ARANGES_SECTION ".debug_aranges"
+#endif
+#ifndef DW_MACINFO_SECTION
+#define DW_MACINFO_SECTION ".debug_macinfo"
+#endif
+#ifndef DEBUG_LINE_SECTION
+#define DEBUG_LINE_SECTION ".debug_line"
+#endif
+#ifndef LOC_SECTION
+#define LOC_SECTION ".debug_loc"
+#endif
+#ifndef PUBNAMES_SECTION
+#define PUBNAMES_SECTION ".debug_pubnames"
+#endif
+#ifndef STR_SECTION
+#define STR_SECTION ".debug_str"
+#endif
+
+/* Standard ELF section names for compiled code and data. */
+#ifndef TEXT_SECTION
+#define TEXT_SECTION ".text"
+#endif
+#ifndef DATA_SECTION
+#define DATA_SECTION ".data"
+#endif
+#ifndef BSS_SECTION
+#define BSS_SECTION ".bss"
+#endif
+
+/* Labels we insert at beginning sections we can reference instead of
+ the section names themselves. */
+
+#ifndef TEXT_SECTION_LABEL
+#define TEXT_SECTION_LABEL "Ltext"
+#endif
+#ifndef DEBUG_LINE_SECTION_LABEL
+#define DEBUG_LINE_SECTION_LABEL "Ldebug_line"
+#endif
+#ifndef DEBUG_INFO_SECTION_LABEL
+#define DEBUG_INFO_SECTION_LABEL "Ldebug_info"
+#endif
+#ifndef ABBREV_SECTION_LABEL
+#define ABBREV_SECTION_LABEL "Ldebug_abbrev"
+#endif
+
+
+/* Definitions of defaults for formats and names of various special
+ (artificial) labels which may be generated within this file (when the -g
+ options is used and DWARF_DEBUGGING_INFO is in effect.
+ If necessary, these may be overridden from within the tm.h file, but
+ typically, overriding these defaults is unnecessary. */
+
+static char text_end_label[MAX_ARTIFICIAL_LABEL_BYTES];
+static char text_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
+static char abbrev_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
+static char debug_info_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
+static char debug_line_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
+
+#ifndef TEXT_END_LABEL
+#define TEXT_END_LABEL "Letext"
+#endif
+#ifndef DATA_END_LABEL
+#define DATA_END_LABEL "Ledata"
+#endif
+#ifndef BSS_END_LABEL
+#define BSS_END_LABEL "Lebss"
+#endif
+#ifndef INSN_LABEL_FMT
+#define INSN_LABEL_FMT "LI%u_"
+#endif
+#ifndef BLOCK_BEGIN_LABEL
+#define BLOCK_BEGIN_LABEL "LBB"
+#endif
+#ifndef BLOCK_END_LABEL
+#define BLOCK_END_LABEL "LBE"
+#endif
+#ifndef BODY_BEGIN_LABEL
+#define BODY_BEGIN_LABEL "Lbb"
+#endif
+#ifndef BODY_END_LABEL
+#define BODY_END_LABEL "Lbe"
+#endif
+#ifndef LINE_CODE_LABEL
+#define LINE_CODE_LABEL "LM"
+#endif
+#ifndef SEPARATE_LINE_CODE_LABEL
+#define SEPARATE_LINE_CODE_LABEL "LSM"
+#endif
+\f
+/* We allow a language front-end to designate a function that is to be
+ called to "demangle" any name before it it put into a DIE. */
+
+static const char *(*demangle_name_func) PARAMS ((const char *));
+
+void
+dwarf2out_set_demangle_name_func (func)
+ const char *(*func) PARAMS ((const char *));
+{
+ demangle_name_func = func;
+}
+\f
+/* Return an rtx like ORIG which lives forever. If we're doing GC,
+ that means adding it to used_rtx_varray. If not, that means making
+ a copy on the permanent_obstack. */
+
+static rtx
+save_rtx (orig)
+ register rtx orig;
+{
+ if (ggc_p)
+ VARRAY_PUSH_RTX (used_rtx_varray, orig);
+ else
+ {
+ push_obstacks_nochange ();
+ end_temporary_allocation ();
+ orig = copy_rtx (orig);
+ pop_obstacks ();
+ }
+
+ return orig;
+}
+
+/* Test if rtl node points to a pseudo register. */
+
+static inline int
+is_pseudo_reg (rtl)
+ register rtx rtl;
+{
+ return ((GET_CODE (rtl) == REG && REGNO (rtl) >= FIRST_PSEUDO_REGISTER)
+ || (GET_CODE (rtl) == SUBREG
+ && REGNO (XEXP (rtl, 0)) >= FIRST_PSEUDO_REGISTER));
+}
+
+/* Return a reference to a type, with its const and volatile qualifiers
+ removed. */
+
+static inline tree
+type_main_variant (type)
+ register tree type;
+{
+ type = TYPE_MAIN_VARIANT (type);
+
+ /* There really should be only one main variant among any group of variants
+ of a given type (and all of the MAIN_VARIANT values for all members of
+ the group should point to that one type) but sometimes the C front-end
+ messes this up for array types, so we work around that bug here. */
+
+ if (TREE_CODE (type) == ARRAY_TYPE)
+ while (type != TYPE_MAIN_VARIANT (type))
+ type = TYPE_MAIN_VARIANT (type);
+
+ return type;
+}
+
+/* Return non-zero if the given type node represents a tagged type. */
+
+static inline int
+is_tagged_type (type)
+ register tree type;
+{
+ register enum tree_code code = TREE_CODE (type);
+
+ return (code == RECORD_TYPE || code == UNION_TYPE
+ || code == QUAL_UNION_TYPE || code == ENUMERAL_TYPE);
+}
+
+/* Convert a DIE tag into its string name. */
+
+static const char *
+dwarf_tag_name (tag)
+ register unsigned tag;
+{
+ switch (tag)
+ {
+ case DW_TAG_padding:
+ return "DW_TAG_padding";
+ case DW_TAG_array_type:
+ return "DW_TAG_array_type";
+ case DW_TAG_class_type:
+ return "DW_TAG_class_type";
+ case DW_TAG_entry_point:
+ return "DW_TAG_entry_point";
+ case DW_TAG_enumeration_type:
+ return "DW_TAG_enumeration_type";
+ case DW_TAG_formal_parameter:
+ return "DW_TAG_formal_parameter";
+ case DW_TAG_imported_declaration:
+ return "DW_TAG_imported_declaration";
+ case DW_TAG_label:
+ return "DW_TAG_label";
+ case DW_TAG_lexical_block:
+ return "DW_TAG_lexical_block";
+ case DW_TAG_member:
+ return "DW_TAG_member";
+ case DW_TAG_pointer_type:
+ return "DW_TAG_pointer_type";
+ case DW_TAG_reference_type:
+ return "DW_TAG_reference_type";
+ case DW_TAG_compile_unit:
+ return "DW_TAG_compile_unit";
+ case DW_TAG_string_type:
+ return "DW_TAG_string_type";
+ case DW_TAG_structure_type:
+ return "DW_TAG_structure_type";
+ case DW_TAG_subroutine_type:
+ return "DW_TAG_subroutine_type";
+ case DW_TAG_typedef:
+ return "DW_TAG_typedef";
+ case DW_TAG_union_type:
+ return "DW_TAG_union_type";
+ case DW_TAG_unspecified_parameters:
+ return "DW_TAG_unspecified_parameters";
+ case DW_TAG_variant:
+ return "DW_TAG_variant";
+ case DW_TAG_common_block:
+ return "DW_TAG_common_block";
+ case DW_TAG_common_inclusion:
+ return "DW_TAG_common_inclusion";
+ case DW_TAG_inheritance:
+ return "DW_TAG_inheritance";
+ case DW_TAG_inlined_subroutine:
+ return "DW_TAG_inlined_subroutine";
+ case DW_TAG_module:
+ return "DW_TAG_module";
+ case DW_TAG_ptr_to_member_type:
+ return "DW_TAG_ptr_to_member_type";
+ case DW_TAG_set_type:
+ return "DW_TAG_set_type";
+ case DW_TAG_subrange_type:
+ return "DW_TAG_subrange_type";
+ case DW_TAG_with_stmt:
+ return "DW_TAG_with_stmt";
+ case DW_TAG_access_declaration:
+ return "DW_TAG_access_declaration";
+ case DW_TAG_base_type:
+ return "DW_TAG_base_type";
+ case DW_TAG_catch_block:
+ return "DW_TAG_catch_block";
+ case DW_TAG_const_type:
+ return "DW_TAG_const_type";
+ case DW_TAG_constant:
+ return "DW_TAG_constant";
+ case DW_TAG_enumerator:
+ return "DW_TAG_enumerator";
+ case DW_TAG_file_type:
+ return "DW_TAG_file_type";
+ case DW_TAG_friend:
+ return "DW_TAG_friend";
+ case DW_TAG_namelist:
+ return "DW_TAG_namelist";
+ case DW_TAG_namelist_item:
+ return "DW_TAG_namelist_item";
+ case DW_TAG_packed_type:
+ return "DW_TAG_packed_type";
+ case DW_TAG_subprogram:
+ return "DW_TAG_subprogram";
+ case DW_TAG_template_type_param:
+ return "DW_TAG_template_type_param";
+ case DW_TAG_template_value_param:
+ return "DW_TAG_template_value_param";
+ case DW_TAG_thrown_type:
+ return "DW_TAG_thrown_type";
+ case DW_TAG_try_block:
+ return "DW_TAG_try_block";
+ case DW_TAG_variant_part:
+ return "DW_TAG_variant_part";
+ case DW_TAG_variable:
+ return "DW_TAG_variable";
+ case DW_TAG_volatile_type:
+ return "DW_TAG_volatile_type";
+ case DW_TAG_MIPS_loop:
+ return "DW_TAG_MIPS_loop";
+ case DW_TAG_format_label:
+ return "DW_TAG_format_label";
+ case DW_TAG_function_template:
+ return "DW_TAG_function_template";
+ case DW_TAG_class_template:
+ return "DW_TAG_class_template";
+ default:
+ return "DW_TAG_<unknown>";
+ }
+}
+
+/* Convert a DWARF attribute code into its string name. */
+
+static const char *
+dwarf_attr_name (attr)
+ register unsigned attr;
+{
+ switch (attr)
+ {
+ case DW_AT_sibling:
+ return "DW_AT_sibling";
+ case DW_AT_location:
+ return "DW_AT_location";
+ case DW_AT_name:
+ return "DW_AT_name";
+ case DW_AT_ordering:
+ return "DW_AT_ordering";
+ case DW_AT_subscr_data:
+ return "DW_AT_subscr_data";
+ case DW_AT_byte_size:
+ return "DW_AT_byte_size";
+ case DW_AT_bit_offset:
+ return "DW_AT_bit_offset";
+ case DW_AT_bit_size:
+ return "DW_AT_bit_size";
+ case DW_AT_element_list:
+ return "DW_AT_element_list";
+ case DW_AT_stmt_list:
+ return "DW_AT_stmt_list";
+ case DW_AT_low_pc:
+ return "DW_AT_low_pc";
+ case DW_AT_high_pc:
+ return "DW_AT_high_pc";
+ case DW_AT_language:
+ return "DW_AT_language";
+ case DW_AT_member:
+ return "DW_AT_member";
+ case DW_AT_discr:
+ return "DW_AT_discr";
+ case DW_AT_discr_value:
+ return "DW_AT_discr_value";
+ case DW_AT_visibility:
+ return "DW_AT_visibility";
+ case DW_AT_import:
+ return "DW_AT_import";
+ case DW_AT_string_length:
+ return "DW_AT_string_length";
+ case DW_AT_common_reference:
+ return "DW_AT_common_reference";
+ case DW_AT_comp_dir:
+ return "DW_AT_comp_dir";
+ case DW_AT_const_value:
+ return "DW_AT_const_value";
+ case DW_AT_containing_type:
+ return "DW_AT_containing_type";
+ case DW_AT_default_value:
+ return "DW_AT_default_value";
+ case DW_AT_inline:
+ return "DW_AT_inline";
+ case DW_AT_is_optional:
+ return "DW_AT_is_optional";
+ case DW_AT_lower_bound:
+ return "DW_AT_lower_bound";
+ case DW_AT_producer:
+ return "DW_AT_producer";
+ case DW_AT_prototyped:
+ return "DW_AT_prototyped";
+ case DW_AT_return_addr:
+ return "DW_AT_return_addr";
+ case DW_AT_start_scope:
+ return "DW_AT_start_scope";
+ case DW_AT_stride_size:
+ return "DW_AT_stride_size";
+ case DW_AT_upper_bound:
+ return "DW_AT_upper_bound";
+ case DW_AT_abstract_origin:
+ return "DW_AT_abstract_origin";
+ case DW_AT_accessibility:
+ return "DW_AT_accessibility";
+ case DW_AT_address_class:
+ return "DW_AT_address_class";
+ case DW_AT_artificial:
+ return "DW_AT_artificial";
+ case DW_AT_base_types:
+ return "DW_AT_base_types";
+ case DW_AT_calling_convention:
+ return "DW_AT_calling_convention";
+ case DW_AT_count:
+ return "DW_AT_count";
+ case DW_AT_data_member_location:
+ return "DW_AT_data_member_location";
+ case DW_AT_decl_column:
+ return "DW_AT_decl_column";
+ case DW_AT_decl_file:
+ return "DW_AT_decl_file";
+ case DW_AT_decl_line:
+ return "DW_AT_decl_line";
+ case DW_AT_declaration:
+ return "DW_AT_declaration";
+ case DW_AT_discr_list:
+ return "DW_AT_discr_list";
+ case DW_AT_encoding:
+ return "DW_AT_encoding";
+ case DW_AT_external:
+ return "DW_AT_external";
+ case DW_AT_frame_base:
+ return "DW_AT_frame_base";
+ case DW_AT_friend:
+ return "DW_AT_friend";
+ case DW_AT_identifier_case:
+ return "DW_AT_identifier_case";
+ case DW_AT_macro_info:
+ return "DW_AT_macro_info";
+ case DW_AT_namelist_items:
+ return "DW_AT_namelist_items";
+ case DW_AT_priority:
+ return "DW_AT_priority";
+ case DW_AT_segment:
+ return "DW_AT_segment";
+ case DW_AT_specification:
+ return "DW_AT_specification";
+ case DW_AT_static_link:
+ return "DW_AT_static_link";
+ case DW_AT_type:
+ return "DW_AT_type";
+ case DW_AT_use_location:
+ return "DW_AT_use_location";
+ case DW_AT_variable_parameter:
+ return "DW_AT_variable_parameter";
+ case DW_AT_virtuality:
+ return "DW_AT_virtuality";
+ case DW_AT_vtable_elem_location:
+ return "DW_AT_vtable_elem_location";
+
+ case DW_AT_MIPS_fde:
+ return "DW_AT_MIPS_fde";
+ case DW_AT_MIPS_loop_begin:
+ return "DW_AT_MIPS_loop_begin";
+ case DW_AT_MIPS_tail_loop_begin:
+ return "DW_AT_MIPS_tail_loop_begin";
+ case DW_AT_MIPS_epilog_begin:
+ return "DW_AT_MIPS_epilog_begin";
+ case DW_AT_MIPS_loop_unroll_factor:
+ return "DW_AT_MIPS_loop_unroll_factor";
+ case DW_AT_MIPS_software_pipeline_depth:
+ return "DW_AT_MIPS_software_pipeline_depth";
+ case DW_AT_MIPS_linkage_name:
+ return "DW_AT_MIPS_linkage_name";
+ case DW_AT_MIPS_stride:
+ return "DW_AT_MIPS_stride";
+ case DW_AT_MIPS_abstract_name:
+ return "DW_AT_MIPS_abstract_name";
+ case DW_AT_MIPS_clone_origin:
+ return "DW_AT_MIPS_clone_origin";
+ case DW_AT_MIPS_has_inlines:
+ return "DW_AT_MIPS_has_inlines";
+
+ case DW_AT_sf_names:
+ return "DW_AT_sf_names";
+ case DW_AT_src_info:
+ return "DW_AT_src_info";
+ case DW_AT_mac_info:
+ return "DW_AT_mac_info";
+ case DW_AT_src_coords:
+ return "DW_AT_src_coords";
+ case DW_AT_body_begin:
+ return "DW_AT_body_begin";
+ case DW_AT_body_end:
+ return "DW_AT_body_end";
+ default:
+ return "DW_AT_<unknown>";
+ }
+}
+
+/* Convert a DWARF value form code into its string name. */
+
+static const char *
+dwarf_form_name (form)
+ register unsigned form;
+{
+ switch (form)
+ {
+ case DW_FORM_addr:
+ return "DW_FORM_addr";
+ case DW_FORM_block2:
+ return "DW_FORM_block2";
+ case DW_FORM_block4:
+ return "DW_FORM_block4";
+ case DW_FORM_data2:
+ return "DW_FORM_data2";
+ case DW_FORM_data4:
+ return "DW_FORM_data4";
+ case DW_FORM_data8:
+ return "DW_FORM_data8";
+ case DW_FORM_string:
+ return "DW_FORM_string";
+ case DW_FORM_block:
+ return "DW_FORM_block";
+ case DW_FORM_block1:
+ return "DW_FORM_block1";
+ case DW_FORM_data1:
+ return "DW_FORM_data1";
+ case DW_FORM_flag:
+ return "DW_FORM_flag";
+ case DW_FORM_sdata:
+ return "DW_FORM_sdata";
+ case DW_FORM_strp:
+ return "DW_FORM_strp";
+ case DW_FORM_udata:
+ return "DW_FORM_udata";
+ case DW_FORM_ref_addr:
+ return "DW_FORM_ref_addr";
+ case DW_FORM_ref1:
+ return "DW_FORM_ref1";
+ case DW_FORM_ref2:
+ return "DW_FORM_ref2";
+ case DW_FORM_ref4:
+ return "DW_FORM_ref4";
+ case DW_FORM_ref8:
+ return "DW_FORM_ref8";
+ case DW_FORM_ref_udata:
+ return "DW_FORM_ref_udata";
+ case DW_FORM_indirect:
+ return "DW_FORM_indirect";
default:
- return "OP_<unknown>";
+ return "DW_FORM_<unknown>";
}
}
context = TYPE_MAIN_VARIANT
(TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl)))));
- if (context && TREE_CODE_CLASS (TREE_CODE (context)) != 't')
+ if (context && !TYPE_P (context))
context = NULL_TREE;
return context;
add_AT_lbl_id (die, attr_kind, lbl_id)
register dw_die_ref die;
register enum dwarf_attribute attr_kind;
- register char *lbl_id;
+ register const char *lbl_id;
{
register dw_attr_ref attr = (dw_attr_ref) xmalloc (sizeof (dw_attr_node));
add_AT_lbl_offset (die, attr_kind, label)
register dw_die_ref die;
register enum dwarf_attribute attr_kind;
- register char *label;
+ register const char *label;
{
register dw_attr_ref attr = (dw_attr_ref) xmalloc (sizeof (dw_attr_node));
lookup_type_die (type)
register tree type;
{
+ if (TREE_CODE (type) == VECTOR_TYPE)
+ type = TYPE_DEBUG_REPRESENTATION_TYPE (type);
return (dw_die_ref) TYPE_SYMTAB_POINTER (type);
}
decl_die_table[decl_id] = decl_die;
}
-
-/* Return a pointer to a newly allocated location description. Location
- descriptions are simple expression terms that can be strung
- together to form more complicated location (address) descriptions. */
-
-static inline dw_loc_descr_ref
-new_loc_descr (op, oprnd1, oprnd2)
- register enum dwarf_location_atom op;
- register unsigned long oprnd1;
- register unsigned long oprnd2;
-{
- register dw_loc_descr_ref descr
- = (dw_loc_descr_ref) xmalloc (sizeof (dw_loc_descr_node));
-
- descr->dw_loc_next = NULL;
- descr->dw_loc_opc = op;
- descr->dw_loc_oprnd1.val_class = dw_val_class_unsigned_const;
- descr->dw_loc_oprnd1.v.val_unsigned = oprnd1;
- descr->dw_loc_oprnd2.val_class = dw_val_class_unsigned_const;
- descr->dw_loc_oprnd2.v.val_unsigned = oprnd2;
-
- return descr;
-}
-
-/* Add a location description term to a location description expression. */
-
-static inline void
-add_loc_descr (list_head, descr)
- register dw_loc_descr_ref *list_head;
- register dw_loc_descr_ref descr;
-{
- register dw_loc_descr_ref *d;
-
- /* Find the end of the chain. */
- for (d = list_head; (*d) != NULL; d = &(*d)->dw_loc_next)
- ;
-
- *d = descr;
-}
\f
/* Keep track of the number of spaces used to indent the
output of the debugging routines that print the structure of
{
register unsigned long abbrev_id;
register unsigned long n_alloc;
- register dw_die_ref c;
- register dw_attr_ref d_attr, a_attr;
- for (abbrev_id = 1; abbrev_id < abbrev_die_table_in_use; ++abbrev_id)
- {
- register dw_die_ref abbrev = abbrev_die_table[abbrev_id];
-
- if (abbrev->die_tag == die->die_tag)
- {
- if ((abbrev->die_child != NULL) == (die->die_child != NULL))
- {
- a_attr = abbrev->die_attr;
- d_attr = die->die_attr;
-
- while (a_attr != NULL && d_attr != NULL)
- {
- if ((a_attr->dw_attr != d_attr->dw_attr)
- || (value_format (a_attr) != value_format (d_attr)))
- break;
-
- a_attr = a_attr->dw_attr_next;
- d_attr = d_attr->dw_attr_next;
- }
-
- if (a_attr == NULL && d_attr == NULL)
- break;
- }
- }
- }
-
- if (abbrev_id >= abbrev_die_table_in_use)
- {
- if (abbrev_die_table_in_use >= abbrev_die_table_allocated)
- {
- n_alloc = abbrev_die_table_allocated + ABBREV_DIE_TABLE_INCREMENT;
- abbrev_die_table
- = (dw_die_ref *) xrealloc (abbrev_die_table,
- sizeof (dw_die_ref) * n_alloc);
-
- bzero ((char *) &abbrev_die_table[abbrev_die_table_allocated],
- (n_alloc - abbrev_die_table_allocated) * sizeof (dw_die_ref));
- abbrev_die_table_allocated = n_alloc;
- }
-
- ++abbrev_die_table_in_use;
- abbrev_die_table[abbrev_id] = die;
- }
-
- die->die_abbrev = abbrev_id;
- for (c = die->die_child; c != NULL; c = c->die_sib)
- build_abbrev_table (c);
-}
-\f
-/* Return the size of a string, including the null byte.
-
- This used to treat backslashes as escapes, and hence they were not included
- in the count. However, that conflicts with what ASM_OUTPUT_ASCII does,
- which treats a backslash as a backslash, escaping it if necessary, and hence
- we must include them in the count. */
-
-static unsigned long
-size_of_string (str)
- register const char *str;
-{
- return strlen (str) + 1;
-}
-
-/* Return the size of a location descriptor. */
-
-static unsigned long
-size_of_loc_descr (loc)
- register dw_loc_descr_ref loc;
-{
- register unsigned long size = 1;
-
- switch (loc->dw_loc_opc)
- {
- case DW_OP_addr:
- size += PTR_SIZE;
- break;
- case DW_OP_const1u:
- case DW_OP_const1s:
- size += 1;
- break;
- case DW_OP_const2u:
- case DW_OP_const2s:
- size += 2;
- break;
- case DW_OP_const4u:
- case DW_OP_const4s:
- size += 4;
- break;
- case DW_OP_const8u:
- case DW_OP_const8s:
- size += 8;
- break;
- case DW_OP_constu:
- size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
- break;
- case DW_OP_consts:
- size += size_of_sleb128 (loc->dw_loc_oprnd1.v.val_int);
- break;
- case DW_OP_pick:
- size += 1;
- break;
- case DW_OP_plus_uconst:
- size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
- break;
- case DW_OP_skip:
- case DW_OP_bra:
- size += 2;
- break;
- case DW_OP_breg0:
- case DW_OP_breg1:
- case DW_OP_breg2:
- case DW_OP_breg3:
- case DW_OP_breg4:
- case DW_OP_breg5:
- case DW_OP_breg6:
- case DW_OP_breg7:
- case DW_OP_breg8:
- case DW_OP_breg9:
- case DW_OP_breg10:
- case DW_OP_breg11:
- case DW_OP_breg12:
- case DW_OP_breg13:
- case DW_OP_breg14:
- case DW_OP_breg15:
- case DW_OP_breg16:
- case DW_OP_breg17:
- case DW_OP_breg18:
- case DW_OP_breg19:
- case DW_OP_breg20:
- case DW_OP_breg21:
- case DW_OP_breg22:
- case DW_OP_breg23:
- case DW_OP_breg24:
- case DW_OP_breg25:
- case DW_OP_breg26:
- case DW_OP_breg27:
- case DW_OP_breg28:
- case DW_OP_breg29:
- case DW_OP_breg30:
- case DW_OP_breg31:
- size += size_of_sleb128 (loc->dw_loc_oprnd1.v.val_int);
- break;
- case DW_OP_regx:
- size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
- break;
- case DW_OP_fbreg:
- size += size_of_sleb128 (loc->dw_loc_oprnd1.v.val_int);
- break;
- case DW_OP_bregx:
- size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
- size += size_of_sleb128 (loc->dw_loc_oprnd2.v.val_int);
- break;
- case DW_OP_piece:
- size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
- break;
- case DW_OP_deref_size:
- case DW_OP_xderef_size:
- size += 1;
- break;
- default:
- break;
+ register dw_die_ref c;
+ register dw_attr_ref d_attr, a_attr;
+ for (abbrev_id = 1; abbrev_id < abbrev_die_table_in_use; ++abbrev_id)
+ {
+ register dw_die_ref abbrev = abbrev_die_table[abbrev_id];
+
+ if (abbrev->die_tag == die->die_tag)
+ {
+ if ((abbrev->die_child != NULL) == (die->die_child != NULL))
+ {
+ a_attr = abbrev->die_attr;
+ d_attr = die->die_attr;
+
+ while (a_attr != NULL && d_attr != NULL)
+ {
+ if ((a_attr->dw_attr != d_attr->dw_attr)
+ || (value_format (a_attr) != value_format (d_attr)))
+ break;
+
+ a_attr = a_attr->dw_attr_next;
+ d_attr = d_attr->dw_attr_next;
+ }
+
+ if (a_attr == NULL && d_attr == NULL)
+ break;
+ }
+ }
}
- return size;
+ if (abbrev_id >= abbrev_die_table_in_use)
+ {
+ if (abbrev_die_table_in_use >= abbrev_die_table_allocated)
+ {
+ n_alloc = abbrev_die_table_allocated + ABBREV_DIE_TABLE_INCREMENT;
+ abbrev_die_table
+ = (dw_die_ref *) xrealloc (abbrev_die_table,
+ sizeof (dw_die_ref) * n_alloc);
+
+ bzero ((char *) &abbrev_die_table[abbrev_die_table_allocated],
+ (n_alloc - abbrev_die_table_allocated) * sizeof (dw_die_ref));
+ abbrev_die_table_allocated = n_alloc;
+ }
+
+ ++abbrev_die_table_in_use;
+ abbrev_die_table[abbrev_id] = die;
+ }
+
+ die->die_abbrev = abbrev_id;
+ for (c = die->die_child; c != NULL; c = c->die_sib)
+ build_abbrev_table (c);
}
+\f
+/* Return the size of a string, including the null byte.
-/* Return the size of a series of location descriptors. */
+ This used to treat backslashes as escapes, and hence they were not included
+ in the count. However, that conflicts with what ASM_OUTPUT_ASCII does,
+ which treats a backslash as a backslash, escaping it if necessary, and hence
+ we must include them in the count. */
static unsigned long
-size_of_locs (loc)
- register dw_loc_descr_ref loc;
+size_of_string (str)
+ register const char *str;
{
- register unsigned long size = 0;
-
- for (; loc != NULL; loc = loc->dw_loc_next)
- size += size_of_loc_descr (loc);
-
- return size;
+ return strlen (str) + 1;
}
/* Return the power-of-two number of bytes necessary to represent VALUE. */
switch (AT_class (a))
{
case dw_val_class_addr:
- size += PTR_SIZE;
+ size += DWARF2_ADDR_SIZE;
break;
case dw_val_class_loc:
{
}
break;
case dw_val_class_const:
- size += 4;
+ size += size_of_sleb128 (AT_int (a));
break;
case dw_val_class_unsigned_const:
size += constant_size (AT_unsigned (a));
size += DWARF_OFFSET_SIZE;
break;
case dw_val_class_lbl_id:
- size += PTR_SIZE;
+ size += DWARF2_ADDR_SIZE;
break;
case dw_val_class_lbl_offset:
size += DWARF_OFFSET_SIZE;
size = DWARF_ARANGES_HEADER_SIZE;
/* Count the address/length pair for this compilation unit. */
- size += 2 * PTR_SIZE;
- size += 2 * PTR_SIZE * arange_table_in_use;
+ size += 2 * DWARF2_ADDR_SIZE;
+ size += 2 * DWARF2_ADDR_SIZE * arange_table_in_use;
/* Count the two zero words used to terminated the address range table. */
- size += 2 * PTR_SIZE;
+ size += 2 * DWARF2_ADDR_SIZE;
return size;
}
\f
abort ();
}
case dw_val_class_const:
- return DW_FORM_data4;
+ return DW_FORM_sdata;
case dw_val_class_unsigned_const:
switch (constant_size (AT_unsigned (a)))
{
fprintf (asm_out_file, "\t%s\t0\n", ASM_BYTE_OP);
}
-/* Output location description stack opcode's operands (if any). */
-
-static void
-output_loc_operands (loc)
- register dw_loc_descr_ref loc;
-{
- register dw_val_ref val1 = &loc->dw_loc_oprnd1;
- register dw_val_ref val2 = &loc->dw_loc_oprnd2;
-
- switch (loc->dw_loc_opc)
- {
- case DW_OP_addr:
- ASM_OUTPUT_DWARF_ADDR_CONST (asm_out_file, val1->v.val_addr);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_const1u:
- case DW_OP_const1s:
- ASM_OUTPUT_DWARF_DATA1 (asm_out_file, val1->v.val_flag);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_const2u:
- case DW_OP_const2s:
- ASM_OUTPUT_DWARF_DATA2 (asm_out_file, val1->v.val_int);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_const4u:
- case DW_OP_const4s:
- ASM_OUTPUT_DWARF_DATA4 (asm_out_file, val1->v.val_int);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_const8u:
- case DW_OP_const8s:
- abort ();
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_constu:
- output_uleb128 (val1->v.val_unsigned);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_consts:
- output_sleb128 (val1->v.val_int);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_pick:
- ASM_OUTPUT_DWARF_DATA1 (asm_out_file, val1->v.val_int);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_plus_uconst:
- output_uleb128 (val1->v.val_unsigned);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_skip:
- case DW_OP_bra:
- ASM_OUTPUT_DWARF_DATA2 (asm_out_file, val1->v.val_int);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_breg0:
- case DW_OP_breg1:
- case DW_OP_breg2:
- case DW_OP_breg3:
- case DW_OP_breg4:
- case DW_OP_breg5:
- case DW_OP_breg6:
- case DW_OP_breg7:
- case DW_OP_breg8:
- case DW_OP_breg9:
- case DW_OP_breg10:
- case DW_OP_breg11:
- case DW_OP_breg12:
- case DW_OP_breg13:
- case DW_OP_breg14:
- case DW_OP_breg15:
- case DW_OP_breg16:
- case DW_OP_breg17:
- case DW_OP_breg18:
- case DW_OP_breg19:
- case DW_OP_breg20:
- case DW_OP_breg21:
- case DW_OP_breg22:
- case DW_OP_breg23:
- case DW_OP_breg24:
- case DW_OP_breg25:
- case DW_OP_breg26:
- case DW_OP_breg27:
- case DW_OP_breg28:
- case DW_OP_breg29:
- case DW_OP_breg30:
- case DW_OP_breg31:
- output_sleb128 (val1->v.val_int);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_regx:
- output_uleb128 (val1->v.val_unsigned);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_fbreg:
- output_sleb128 (val1->v.val_int);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_bregx:
- output_uleb128 (val1->v.val_unsigned);
- fputc ('\n', asm_out_file);
- output_sleb128 (val2->v.val_int);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_piece:
- output_uleb128 (val1->v.val_unsigned);
- fputc ('\n', asm_out_file);
- break;
- case DW_OP_deref_size:
- case DW_OP_xderef_size:
- ASM_OUTPUT_DWARF_DATA1 (asm_out_file, val1->v.val_flag);
- fputc ('\n', asm_out_file);
- break;
- default:
- break;
- }
-}
-
/* Output the DIE and its attributes. Called recursively to generate
the definitions of each child DIE. */
register dw_attr_ref a;
register dw_die_ref c;
register unsigned long size;
- register dw_loc_descr_ref loc;
output_uleb128 (die->die_abbrev);
if (flag_debug_asm)
ASM_COMMENT_START, dwarf_attr_name (a->dw_attr));
fputc ('\n', asm_out_file);
- for (loc = AT_loc (a); loc != NULL; loc = loc->dw_loc_next)
- {
- /* Output the opcode. */
- ASM_OUTPUT_DWARF_DATA1 (asm_out_file, loc->dw_loc_opc);
- if (flag_debug_asm)
- fprintf (asm_out_file, "\t%s %s", ASM_COMMENT_START,
- dwarf_stack_op_name (loc->dw_loc_opc));
- fputc ('\n', asm_out_file);
-
- /* Output the operand(s) (if any). */
- output_loc_operands (loc);
- }
+ output_loc_sequence (AT_loc (a));
break;
case dw_val_class_const:
- ASM_OUTPUT_DWARF_DATA4 (asm_out_file, AT_int (a));
+ /* ??? It would be slightly more efficient to use a scheme like is
+ used for unsigned constants below, but gdb 4.x does not sign
+ extend. Gdb 5.x does sign extend. */
+ output_sleb128 (AT_int (a));
break;
case dw_val_class_unsigned_const:
ASM_OUTPUT_DWARF_DATA4 (asm_out_file, AT_unsigned (a));
break;
case 8:
- ASM_OUTPUT_DWARF_DATA8 (asm_out_file,
- a->dw_attr_val.v.val_long_long.hi,
- a->dw_attr_val.v.val_long_long.low);
+ ASM_OUTPUT_DWARF_DATA8 (asm_out_file, AT_unsigned (a));
break;
default:
abort ();
ASM_COMMENT_START, dwarf_attr_name (a->dw_attr));
fputc ('\n', asm_out_file);
- ASM_OUTPUT_DWARF_DATA8 (asm_out_file,
- a->dw_attr_val.v.val_long_long.hi,
- a->dw_attr_val.v.val_long_long.low);
+ ASM_OUTPUT_DWARF_CONST_DOUBLE (asm_out_file,
+ a->dw_attr_val.v.val_long_long.hi,
+ a->dw_attr_val.v.val_long_long.low);
if (flag_debug_asm)
fprintf (asm_out_file,
ASM_COMMENT_START);
fputc ('\n', asm_out_file);
- ASM_OUTPUT_DWARF_DATA1 (asm_out_file, PTR_SIZE);
+ ASM_OUTPUT_DWARF_DATA1 (asm_out_file, DWARF2_ADDR_SIZE);
if (flag_debug_asm)
fprintf (asm_out_file, "\t%s Pointer Size (in bytes)", ASM_COMMENT_START);
ASM_COMMENT_START);
fputc ('\n', asm_out_file);
- ASM_OUTPUT_DWARF_DATA1 (asm_out_file, PTR_SIZE);
+ ASM_OUTPUT_DWARF_DATA1 (asm_out_file, DWARF2_ADDR_SIZE);
if (flag_debug_asm)
fprintf (asm_out_file, "\t%s Size of Address", ASM_COMMENT_START);
ASM_COMMENT_START);
fputc ('\n', asm_out_file);
- /* We need to align to twice the pointer size here.
- If DWARF_OFFSET_SIZE == 4, then we have emitted 12 bytes, and need 4
- bytes of padding to align for either 4 or 8 byte pointers. */
- ASM_OUTPUT_DWARF_DATA4 (asm_out_file, 0);
- /* If DWARF_OFFSET_SIZE == 8, then we have emitted 20 bytes, and need 12
- bytes of padding to align for 8 byte pointers. We have already emitted
- 4 bytes of padding, so emit 8 more here. */
- if (DWARF_OFFSET_SIZE == 8)
- fprintf (asm_out_file, ",0,0");
- if (flag_debug_asm)
- fprintf (asm_out_file, "\t%s Pad to %d byte boundary",
- ASM_COMMENT_START, 2 * PTR_SIZE);
+ /* We need to align to twice the pointer size here. */
+ if (DWARF_ARANGES_PAD_SIZE)
+ {
+ /* Pad using a 2 bytes word so that padding is correct
+ for any pointer size. */
+ ASM_OUTPUT_DWARF_DATA2 (asm_out_file, 0);
+ for (i = 2; i < DWARF_ARANGES_PAD_SIZE; i += 2)
+ fprintf (asm_out_file, ",0");
+ if (flag_debug_asm)
+ fprintf (asm_out_file, "\t%s Pad to %d byte boundary",
+ ASM_COMMENT_START, 2 * DWARF2_ADDR_SIZE);
+ }
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_ADDR (asm_out_file, text_section_label);
}
else
{
- /* This can handle any delta. This takes 4+PTR_SIZE bytes. */
+ /* This can handle any delta. This takes
+ 4+DWARF2_ADDR_SIZE bytes. */
ASM_OUTPUT_DWARF_DATA1 (asm_out_file, 0);
if (flag_debug_asm)
fprintf (asm_out_file, "\t%s DW_LNE_set_address",
ASM_COMMENT_START);
fputc ('\n', asm_out_file);
- output_uleb128 (1 + PTR_SIZE);
+ output_uleb128 (1 + DWARF2_ADDR_SIZE);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_DATA1 (asm_out_file, DW_LNE_set_address);
fputc ('\n', asm_out_file);
if (flag_debug_asm)
fprintf (asm_out_file, "\t%s DW_LNE_set_address", ASM_COMMENT_START);
fputc ('\n', asm_out_file);
- output_uleb128 (1 + PTR_SIZE);
+ output_uleb128 (1 + DWARF2_ADDR_SIZE);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_DATA1 (asm_out_file, DW_LNE_set_address);
fputc ('\n', asm_out_file);
ASM_COMMENT_START);
fputc ('\n', asm_out_file);
- output_uleb128 (1 + PTR_SIZE);
+ output_uleb128 (1 + DWARF2_ADDR_SIZE);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_DATA1 (asm_out_file, DW_LNE_set_address);
fputc ('\n', asm_out_file);
fprintf (asm_out_file, "\t%s DW_LNE_set_address",
ASM_COMMENT_START);
fputc ('\n', asm_out_file);
- output_uleb128 (1 + PTR_SIZE);
+ output_uleb128 (1 + DWARF2_ADDR_SIZE);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_DATA1 (asm_out_file, DW_LNE_set_address);
fputc ('\n', asm_out_file);
fprintf (asm_out_file, "\t%s DW_LNE_set_address",
ASM_COMMENT_START);
fputc ('\n', asm_out_file);
- output_uleb128 (1 + PTR_SIZE);
+ output_uleb128 (1 + DWARF2_ADDR_SIZE);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_DATA1 (asm_out_file, DW_LNE_set_address);
fputc ('\n', asm_out_file);
return TREE_CODE (type) == ENUMERAL_TYPE;
}
+/* Return the register number described by a given RTL node. */
+
+static unsigned int
+reg_number (rtl)
+ register rtx rtl;
+{
+ register unsigned regno = REGNO (rtl);
+
+ if (regno >= FIRST_PSEUDO_REGISTER)
+ {
+ warning ("internal regno botch: regno = %d\n", regno);
+ regno = 0;
+ }
+
+ regno = DBX_REGISTER_NUMBER (regno);
+ return regno;
+}
+
/* Return a location descriptor that designates a machine register. */
static dw_loc_descr_ref
return loc_result;
}
-/* Given an unsigned value, round it up to the lowest multiple of `boundary'
+/* Given a value, round it up to the lowest multiple of `boundary'
which is not less than the value itself. */
-static inline unsigned
+static inline HOST_WIDE_INT
ceiling (value, boundary)
- register unsigned value;
- register unsigned boundary;
+ HOST_WIDE_INT value;
+ unsigned int boundary;
{
return (((value + boundary - 1) / boundary) * boundary);
}
else return BITS_PER_WORD if the type actually turns out to be an
ERROR_MARK node. */
-static inline unsigned
+static inline unsigned HOST_WIDE_INT
simple_type_size_in_bits (type)
register tree type;
{
{
register tree type_size_tree = TYPE_SIZE (type);
- if (TREE_CODE (type_size_tree) != INTEGER_CST)
+ if (! host_integerp (type_size_tree, 1))
return TYPE_ALIGN (type);
- return (unsigned) TREE_INT_CST_LOW (type_size_tree);
+ return tree_low_cst (type_size_tree, 1);
}
}
be a pointer to an ERROR_MARK node, or because the offset is actually
variable. (We can't handle the latter case just yet). */
-static unsigned
+static HOST_WIDE_INT
field_byte_offset (decl)
register tree decl;
{
- register unsigned type_align_in_bytes;
- register unsigned type_align_in_bits;
- register unsigned type_size_in_bits;
- register unsigned object_offset_in_align_units;
- register unsigned object_offset_in_bits;
- register unsigned object_offset_in_bytes;
- register tree type;
- register tree bitpos_tree;
- register tree field_size_tree;
- register unsigned bitpos_int;
- register unsigned deepest_bitpos;
- register unsigned field_size_in_bits;
+ unsigned int type_align_in_bytes;
+ unsigned int type_align_in_bits;
+ unsigned HOST_WIDE_INT type_size_in_bits;
+ HOST_WIDE_INT object_offset_in_align_units;
+ HOST_WIDE_INT object_offset_in_bits;
+ HOST_WIDE_INT object_offset_in_bytes;
+ tree type;
+ tree field_size_tree;
+ HOST_WIDE_INT bitpos_int;
+ HOST_WIDE_INT deepest_bitpos;
+ unsigned HOST_WIDE_INT field_size_in_bits;
if (TREE_CODE (decl) == ERROR_MARK)
return 0;
abort ();
type = field_type (decl);
-
- bitpos_tree = DECL_FIELD_BITPOS (decl);
field_size_tree = DECL_SIZE (decl);
/* If there was an error, the size could be zero. */
{
if (errorcount)
return 0;
+
abort ();
}
/* We cannot yet cope with fields whose positions are variable, so
for now, when we see such things, we simply return 0. Someday, we may
be able to handle such cases, but it will be damn difficult. */
- if (TREE_CODE (bitpos_tree) != INTEGER_CST)
+ if (! host_integerp (bit_position (decl), 0))
return 0;
- bitpos_int = (unsigned) TREE_INT_CST_LOW (bitpos_tree);
+ bitpos_int = int_bit_position (decl);
/* If we don't know the size of the field, pretend it's a full word. */
- if (TREE_CODE (field_size_tree) == INTEGER_CST)
- field_size_in_bits = (unsigned) TREE_INT_CST_LOW (field_size_tree);
+ if (host_integerp (field_size_tree, 1))
+ field_size_in_bits = tree_low_cst (field_size_tree, 1);
else
field_size_in_bits = BITS_PER_WORD;
register enum dwarf_location_atom op;
if (TREE_CODE (decl) == TREE_VEC)
- offset = TREE_INT_CST_LOW (BINFO_OFFSET (decl));
+ offset = tree_low_cst (BINFO_OFFSET (decl), 0);
else
offset = field_byte_offset (decl);
register enum dwarf_attribute bound_attr;
register tree bound;
{
- register unsigned bound_value = 0;
-
/* If this is an Ada unconstrained array type, then don't emit any debug
info because the array bounds are unknown. They are parameterized when
the type is instantiated. */
/* All fixed-bounds are represented by INTEGER_CST nodes. */
case INTEGER_CST:
- bound_value = TREE_INT_CST_LOW (bound);
- if (bound_attr == DW_AT_lower_bound
- && ((is_c_family () && bound_value == 0)
- || (is_fortran () && bound_value == 1)))
- /* use the default */;
+ if (! host_integerp (bound, 0)
+ || (bound_attr == DW_AT_lower_bound
+ && ((is_c_family () && integer_zerop (bound))
+ || (is_fortran () && integer_onep (bound)))))
+ /* use the default */
+ ;
else
- add_AT_unsigned (subrange_die, bound_attr, bound_value);
+ add_AT_unsigned (subrange_die, bound_attr, tree_low_cst (bound, 0));
break;
case CONVERT_EXPR:
We assume that a MEM rtx is safe because gcc wouldn't put the
value there unless it was going to be used repeatedly in the
function, i.e. for cleanups. */
- if (! optimize || GET_CODE (SAVE_EXPR_RTL (bound)) == MEM)
+ if (! optimize || (SAVE_EXPR_RTL (bound)
+ && GET_CODE (SAVE_EXPR_RTL (bound)) == MEM))
{
register dw_die_ref ctx = lookup_decl_die (current_function_decl);
register dw_die_ref decl_die = new_die (DW_TAG_variable, ctx);
register dw_die_ref die;
register tree decl;
{
- register unsigned object_offset_in_bytes = field_byte_offset (decl);
- register tree type = DECL_BIT_FIELD_TYPE (decl);
- register tree bitpos_tree = DECL_FIELD_BITPOS (decl);
- register unsigned bitpos_int;
- register unsigned highest_order_object_bit_offset;
- register unsigned highest_order_field_bit_offset;
- register unsigned bit_offset;
+ HOST_WIDE_INT object_offset_in_bytes = field_byte_offset (decl);
+ tree type = DECL_BIT_FIELD_TYPE (decl);
+ HOST_WIDE_INT bitpos_int;
+ HOST_WIDE_INT highest_order_object_bit_offset;
+ HOST_WIDE_INT highest_order_field_bit_offset;
+ HOST_WIDE_INT unsigned bit_offset;
/* Must be a field and a bit field. */
if (!type
/* We can't yet handle bit-fields whose offsets are variable, so if we
encounter such things, just return without generating any attribute
- whatsoever. */
- if (TREE_CODE (bitpos_tree) != INTEGER_CST)
+ whatsoever. Likewise for variable or too large size. */
+ if (! host_integerp (bit_position (decl), 0)
+ || ! host_integerp (DECL_SIZE (decl), 1))
return;
- bitpos_int = (unsigned) TREE_INT_CST_LOW (bitpos_tree);
+ bitpos_int = int_bit_position (decl);
/* Note that the bit offset is always the distance (in bits) from the
highest-order bit of the "containing object" to the highest-order bit of
if (! BYTES_BIG_ENDIAN)
{
- highest_order_field_bit_offset
- += (unsigned) TREE_INT_CST_LOW (DECL_SIZE (decl));
-
+ highest_order_field_bit_offset += tree_low_cst (DECL_SIZE (decl), 0);
highest_order_object_bit_offset += simple_type_size_in_bits (type);
}
if (TREE_CODE (decl) != FIELD_DECL
|| ! DECL_BIT_FIELD_TYPE (decl))
abort ();
- add_AT_unsigned (die, DW_AT_bit_size,
- (unsigned) TREE_INT_CST_LOW (DECL_SIZE (decl)));
+
+ if (host_integerp (DECL_SIZE (decl), 1))
+ add_AT_unsigned (die, DW_AT_bit_size, tree_low_cst (DECL_SIZE (decl), 1));
}
/* If the compiled language is ANSI C, then add a 'prototyped'
Doing this for nested functions is wrong, however; functions are
distinct units, and our context might not even be inline. */
- tree fn = decl_function_context (origin);
+ tree fn = origin;
+ if (TYPE_P (fn))
+ fn = TYPE_STUB_DECL (fn);
+ fn = decl_function_context (fn);
if (fn)
gen_abstract_function (fn);
}
- if (TREE_CODE_CLASS (TREE_CODE (origin)) == 'd')
+ if (DECL_P (origin))
origin_die = lookup_decl_die (origin);
- else if (TREE_CODE_CLASS (TREE_CODE (origin)) == 't')
+ else if (TYPE_P (origin))
origin_die = lookup_type_die (origin);
if (origin_die == NULL)
if (DECL_VINDEX (func_decl))
{
add_AT_unsigned (die, DW_AT_virtuality, DW_VIRTUALITY_virtual);
- add_AT_loc (die, DW_AT_vtable_elem_location,
- new_loc_descr (DW_OP_constu,
- TREE_INT_CST_LOW (DECL_VINDEX (func_decl)),
- 0));
+
+ if (host_integerp (DECL_VINDEX (func_decl), 0))
+ add_AT_loc (die, DW_AT_vtable_elem_location,
+ new_loc_descr (DW_OP_constu,
+ tree_low_cst (DECL_VINDEX (func_decl), 0),
+ 0));
/* GNU extension: Record what type this method came from originally. */
if (debug_info_level > DINFO_LEVEL_TERSE)
add_src_coords_attributes (die, decl);
if ((TREE_CODE (decl) == FUNCTION_DECL || TREE_CODE (decl) == VAR_DECL)
+ && TREE_PUBLIC (decl)
&& DECL_ASSEMBLER_NAME (decl) != DECL_NAME (decl))
add_AT_string (die, DW_AT_MIPS_linkage_name,
IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)));
a pointer to the (string) tag name for the given type, or zero if the type
was declared without a tag. */
-static char *
+static const char *
type_tag (type)
register tree type;
{
- register char *name = 0;
+ register const char *name = 0;
if (TYPE_NAME (type) != 0)
{
from the DECL_NAME name used in the source file. */
#if 0
-static char *
+static const char *
decl_start_label (decl)
register tree decl;
{
rtx x;
- char *fnname;
+ const char *fnname;
x = DECL_RTL (decl);
if (GET_CODE (x) != MEM)
abort ();
add_name_attribute (enum_die,
IDENTIFIER_POINTER (TREE_PURPOSE (link)));
- add_AT_unsigned (enum_die, DW_AT_const_value,
- (unsigned) TREE_INT_CST_LOW (TREE_VALUE (link)));
+
+ if (host_integerp (TREE_VALUE (link), 0))
+ {
+ if (tree_int_cst_sgn (TREE_VALUE (link)) < 0)
+ add_AT_int (enum_die, DW_AT_const_value,
+ tree_low_cst (TREE_VALUE (link), 0));
+ else
+ add_AT_unsigned (enum_die, DW_AT_const_value,
+ tree_low_cst (TREE_VALUE (link), 0));
+ }
}
}
else
/* Generate a list of nameless DW_TAG_formal_parameter DIEs (and perhaps a
DW_TAG_unspecified_parameters DIE) to represent the types of the formal
parameters as specified in some function type specification (except for
- those which appear as part of a function *definition*).
-
- Note we must be careful here to output all of the parameter DIEs before*
- we output any DIEs needed to represent the types of the formal parameters.
- This keeps svr4 SDB happy because it (incorrectly) thinks that the first
- non-parameter DIE it sees ends the formal parameter list. */
+ those which appear as part of a function *definition*). */
static void
gen_formal_types_die (function_or_method_type, context_die)
case, `declaration' takes priority; we'll get back to the abstract
instance when we're done with the class. */
+ /* The class-scope declaration DIE must be the primary DIE. */
+ if (origin && declaration && class_scope_p (context_die))
+ {
+ origin = NULL;
+ if (old_die)
+ abort ();
+ }
+
if (origin != NULL)
{
if (declaration && ! local_scope_p (context_die))
abort ();
+ /* Fixup die_parent for the abstract instance of a nested
+ inline function. */
+ if (old_die && old_die->die_parent == NULL)
+ add_child_die (context_die, old_die);
+
subr_die = new_die (DW_TAG_subprogram, context_die);
add_abstract_origin_attribute (subr_die, origin);
}
{
register dw_die_ref die;
char producer[250];
- char *wd = getpwd ();
+ const char *wd = getpwd ();
int language;
die = new_die (DW_TAG_compile_unit, NULL);
gen_array_type_die (type, context_die);
break;
+ case VECTOR_TYPE:
+ gen_type_die (TYPE_DEBUG_REPRESENTATION_TYPE (type), context_die);
+ break;
+
case ENUMERAL_TYPE:
case RECORD_TYPE:
case UNION_TYPE:
&& (current_function_decl == NULL_TREE || DECL_ARTIFICIAL (decl)))
break;
- /* Emit info for the abstract instance first, if we haven't yet. */
- origin = decl_ultimate_origin (decl);
- if (origin)
- gen_abstract_function (origin);
+ /* If we're emitting an out-of-line copy of an inline function,
+ emit info for the abstract instance and set up to refer to it. */
+ if (DECL_INLINE (decl) && ! DECL_ABSTRACT (decl)
+ && ! class_scope_p (context_die))
+ {
+ gen_abstract_function (decl);
+ set_decl_origin_self (decl);
+ }
if (debug_info_level > DINFO_LEVEL_TERSE)
{
break;
case TYPE_DECL:
+ /* Don't emit stubs for types unless they are needed by other DIEs. */
+ if (TYPE_DECL_SUPPRESS_DEBUG (decl))
+ return;
+
/* Don't bother trying to generate any DIEs to represent any of the
normal built-in types for the language we are compiling. */
if (DECL_SOURCE_LINE (decl) == 0)
ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, BLOCK_END_LABEL, blocknum);
}
-/* We've decided not to emit any debugging information for BLOCK; make
- sure that we don't end up with orphans as a result. */
+/* Returns nonzero if it is appropriate not to emit any debugging
+ information for BLOCK, because it doesn't contain any instructions.
-void
+ Don't allow this for blocks with nested functions or local classes
+ as we would end up with orphans, and in the presence of scheduling
+ we may end up calling them anyway. */
+
+int
dwarf2out_ignore_block (block)
tree block;
{
tree decl;
for (decl = BLOCK_VARS (block); decl; decl = TREE_CHAIN (decl))
- {
- dw_die_ref die;
-
- if (TREE_CODE (decl) == FUNCTION_DECL)
- die = lookup_decl_die (decl);
- else if (TREE_CODE (decl) == TYPE_DECL && TYPE_DECL_IS_STUB (decl))
- die = lookup_type_die (TREE_TYPE (decl));
- else
- die = NULL;
-
- /* Just give them a dummy value for parent so dwarf2out_finish
- doesn't blow up; we would use add_child_die if we really
- wanted to add them to comp_unit_die's children. */
- if (die && die->die_parent == 0)
- die->die_parent = comp_unit_die;
- }
+ if (TREE_CODE (decl) == FUNCTION_DECL
+ || (TREE_CODE (decl) == TYPE_DECL && TYPE_DECL_IS_STUB (decl)))
+ return 0;
+ return 1;
}
/* Output a marker (i.e. a label) at a point in the assembly code which
void
dwarf2out_init (asm_out_file, main_input_filename)
register FILE *asm_out_file;
- register char *main_input_filename;
+ register const char *main_input_filename;
{
/* Remember the name of the primary input file. */
primary_filename = main_input_filename;
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