/* Dwarf2 assembler output helper routines.
- Copyright (C) 2001 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
#include "config.h"
#include "system.h"
#include "flags.h"
+#include "tree.h"
#include "rtl.h"
#include "output.h"
+#include "target.h"
#include "dwarf2asm.h"
+#include "dwarf2.h"
+#include "splay-tree.h"
+#include "ggc.h"
#include "tm_p.h"
#define ASM_COMMENT_START ";#"
#endif
-/* Definitions of defaults for assembler-dependent names of various
- pseudo-ops and section names. These may be overridden in the tm.h
- file (if necessary) for a particular assembler. */
-
-#ifdef OBJECT_FORMAT_ELF
-#ifndef UNALIGNED_SHORT_ASM_OP
-#define UNALIGNED_SHORT_ASM_OP "\t.2byte\t"
-#endif
-#ifndef UNALIGNED_INT_ASM_OP
-#define UNALIGNED_INT_ASM_OP "\t.4byte\t"
-#endif
-#ifndef UNALIGNED_DOUBLE_INT_ASM_OP
-#define UNALIGNED_DOUBLE_INT_ASM_OP "\t.8byte\t"
-#endif
-#endif /* OBJECT_FORMAT_ELF */
-
-#ifndef ASM_BYTE_OP
-#define ASM_BYTE_OP "\t.byte\t"
-#endif
-
-/* We don't have unaligned support, let's hope the normal output works for
- .debug_frame. But we know it won't work for .debug_info. */
-#if !defined(UNALIGNED_INT_ASM_OP) && defined(DWARF2_DEBUGGING_INFO)
- #error DWARF2_DEBUGGING_INFO requires UNALIGNED_INT_ASM_OP.
-#endif
-
\f
-#ifdef UNALIGNED_INT_ASM_OP
-static const char * unaligned_integer_asm_op PARAMS ((int));
+/* Output an unaligned integer with the given value and size. Prefer not
+ to print a newline, since the caller may want to add a comment. */
-static inline const char *
-unaligned_integer_asm_op (size)
+void
+dw2_assemble_integer (size, x)
int size;
+ rtx x;
{
- const char *op;
- switch (size)
+ const char *op = integer_asm_op (size, FALSE);
+
+ if (op)
{
- case 1:
- op = ASM_BYTE_OP;
- break;
- case 2:
- op = UNALIGNED_SHORT_ASM_OP;
- break;
- case 4:
- op = UNALIGNED_INT_ASM_OP;
- break;
- case 8:
-#ifdef UNALIGNED_DOUBLE_INT_ASM_OP
- op = UNALIGNED_DOUBLE_INT_ASM_OP;
- break;
-#endif
- default:
- abort ();
+ fputs (op, asm_out_file);
+ if (GET_CODE (x) == CONST_INT)
+ fprintf (asm_out_file, HOST_WIDE_INT_PRINT_HEX, INTVAL (x));
+ else
+ output_addr_const (asm_out_file, x);
}
- return op;
+ else
+ assemble_integer (x, size, BITS_PER_UNIT, 1);
}
-#endif /* UNALIGNED_INT_ASM_OP */
+
+
+/* Output an immediate constant in a given size. */
void
dw2_asm_output_data VPARAMS ((int size, unsigned HOST_WIDE_INT value,
const char *comment, ...))
{
-#ifndef ANSI_PROTOTYPES
- int size;
- unsigned HOST_WIDE_INT value;
- const char *comment;
-#endif
- va_list ap;
-
- VA_START (ap, comment);
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, int, size);
+ VA_FIXEDARG (ap, unsigned HOST_WIDE_INT, value);
+ VA_FIXEDARG (ap, const char *, comment);
-#ifndef ANSI_PROTOTYPES
- size = va_arg (ap, int);
- value = va_arg (ap, unsigned HOST_WIDE_INT);
- comment = va_arg (ap, const char *);
-#endif
+ if (size * 8 < HOST_BITS_PER_WIDE_INT)
+ value &= ~(~(unsigned HOST_WIDE_INT) 0 << (size * 8));
-#ifdef UNALIGNED_INT_ASM_OP
- fputs (unaligned_integer_asm_op (size), asm_out_file);
- fprintf (asm_out_file, HOST_WIDE_INT_PRINT_HEX, value);
-#else
- assemble_integer (GEN_INT (value), size, 1);
-#endif
+ dw2_assemble_integer (size, GEN_INT (value));
if (flag_debug_asm && comment)
{
}
fputc ('\n', asm_out_file);
- va_end (ap);
+ VA_CLOSE (ap);
}
+/* Output the difference between two symbols in a given size. */
+/* ??? There appear to be assemblers that do not like such
+ subtraction, but do support ASM_SET_OP. It's unfortunately
+ impossible to do here, since the ASM_SET_OP for the difference
+ symbol must appear after both symbols are defined. */
+
void
dw2_asm_output_delta VPARAMS ((int size, const char *lab1, const char *lab2,
const char *comment, ...))
{
-#ifndef ANSI_PROTOTYPES
- int size;
- const char *lab1, *lab2;
- const char *comment;
-#endif
- va_list ap;
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, int, size);
+ VA_FIXEDARG (ap, const char *, lab1);
+ VA_FIXEDARG (ap, const char *, lab2);
+ VA_FIXEDARG (ap, const char *, comment);
- VA_START (ap, comment);
-
-#ifndef ANSI_PROTOTYPES
- size = va_arg (ap, int);
- lab1 = va_arg (ap, const char *);
- lab2 = va_arg (ap, const char *);
- comment = va_arg (ap, const char *);
-#endif
-
-#ifdef UNALIGNED_INT_ASM_OP
- fputs (unaligned_integer_asm_op (size), asm_out_file);
- assemble_name (asm_out_file, lab1);
- fputc ('-', asm_out_file);
- assemble_name (asm_out_file, lab2);
-#else
- assemble_integer (gen_rtx_MINUS (smallest_mode_for_size (size, MODE_INT, 0),
- gen_rtx_SYMBOL_REF (Pmode, lab1),
- gen_rtx_SYMBOL_REF (Pmode, lab2)),
- size, 1);
-#endif
+ dw2_assemble_integer (size,
+ gen_rtx_MINUS (Pmode,
+ gen_rtx_SYMBOL_REF (Pmode, lab1),
+ gen_rtx_SYMBOL_REF (Pmode, lab2)));
if (flag_debug_asm && comment)
{
}
fputc ('\n', asm_out_file);
- va_end (ap);
+ VA_CLOSE (ap);
}
+/* Output a section-relative reference to a label. In general this
+ can only be done for debugging symbols. E.g. on most targets with
+ the GNU linker, this is accomplished with a direct reference and
+ the knowledge that the debugging section will be placed at VMA 0.
+ Some targets have special relocations for this that we must use. */
+
void
dw2_asm_output_offset VPARAMS ((int size, const char *label,
const char *comment, ...))
{
-#ifndef ANSI_PROTOTYPES
- int size;
- const char *label;
- const char *comment;
-#endif
- va_list ap;
-
- VA_START (ap, comment);
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, int, size);
+ VA_FIXEDARG (ap, const char *, label);
+ VA_FIXEDARG (ap, const char *, comment);
-#ifndef ANSI_PROTOTYPES
- size = va_arg (ap, int);
- label = va_arg (ap, const char *);
- comment = va_arg (ap, const char *);
-#endif
-
-#ifdef UNALIGNED_INT_ASM_OP
- fputs (unaligned_integer_asm_op (size), asm_out_file);
- assemble_name (asm_out_file, label);
+#ifdef ASM_OUTPUT_DWARF_OFFSET
+ ASM_OUTPUT_DWARF_OFFSET (asm_out_file, size, label);
#else
- assemble_integer (gen_rtx_SYMBOL_REF (Pmode, label), size, 1);
+ dw2_assemble_integer (size, gen_rtx_SYMBOL_REF (Pmode, label));
#endif
if (flag_debug_asm && comment)
}
fputc ('\n', asm_out_file);
- va_end (ap);
+ VA_CLOSE (ap);
}
+/* Output a self-relative reference to a label, possibly in a
+ different section or object file. */
+
void
-dw2_asm_output_pcrel VPARAMS ((int size, const char *label,
+dw2_asm_output_pcrel VPARAMS ((int size ATTRIBUTE_UNUSED,
+ const char *label ATTRIBUTE_UNUSED,
const char *comment, ...))
{
-#ifndef ANSI_PROTOTYPES
- int size;
- const char *label;
- const char *comment;
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, int, size);
+ VA_FIXEDARG (ap, const char *, label);
+ VA_FIXEDARG (ap, const char *, comment);
+
+#ifdef ASM_OUTPUT_DWARF_PCREL
+ ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, label);
+#else
+ dw2_assemble_integer (size,
+ gen_rtx_MINUS (Pmode,
+ gen_rtx_SYMBOL_REF (Pmode, label),
+ pc_rtx));
#endif
- va_list ap;
- VA_START (ap, comment);
+ if (flag_debug_asm && comment)
+ {
+ fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START);
+ vfprintf (asm_out_file, comment, ap);
+ }
+ fputc ('\n', asm_out_file);
+
+ VA_CLOSE (ap);
+}
-#ifndef ANSI_PROTOTYPES
- size = va_arg (ap, int);
- label = va_arg (ap, const char *);
- comment = va_arg (ap, const char *);
-#endif
+/* Output an absolute reference to a label. */
-#ifdef UNALIGNED_INT_ASM_OP
- fputs (unaligned_integer_asm_op (size), asm_out_file);
+void
+dw2_asm_output_addr VPARAMS ((int size, const char *label,
+ const char *comment, ...))
+{
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, int, size);
+ VA_FIXEDARG (ap, const char *, label);
+ VA_FIXEDARG (ap, const char *, comment);
- /* ??? This needs target conditionalization. E.g. the solaris
- assembler uses %r_disp32(label). Others don't like "." and
- we need to generate a temporary label here. */
- assemble_name (asm_out_file, label);
- fputc ('-', asm_out_file);
- fputc ('.', asm_out_file);
-#else
- abort ();
-#endif
+ dw2_assemble_integer (size, gen_rtx_SYMBOL_REF (Pmode, label));
if (flag_debug_asm && comment)
{
}
fputc ('\n', asm_out_file);
- va_end (ap);
+ VA_CLOSE (ap);
}
+/* Similar, but use an RTX expression instead of a text label. */
+
void
dw2_asm_output_addr_rtx VPARAMS ((int size, rtx addr,
const char *comment, ...))
{
-#ifndef ANSI_PROTOTYPES
- int size;
- rtx addr;
- const char *comment;
-#endif
- va_list ap;
-
- VA_START (ap, comment);
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, int, size);
+ VA_FIXEDARG (ap, rtx, addr);
+ VA_FIXEDARG (ap, const char *, comment);
-#ifndef ANSI_PROTOTYPES
- size = va_arg (ap, int);
- addr = va_arg (ap, rtx);
- comment = va_arg (ap, const char *);
-#endif
-
-#ifdef UNALIGNED_INT_ASM_OP
- fputs (unaligned_integer_asm_op (size), asm_out_file);
- output_addr_const (asm_out_file, addr);
-#else
- assemble_integer (addr, size, 1);
-#endif
+ dw2_assemble_integer (size, addr);
if (flag_debug_asm && comment)
{
}
fputc ('\n', asm_out_file);
- va_end (ap);
+ VA_CLOSE (ap);
}
void
dw2_asm_output_nstring VPARAMS ((const char *str, size_t orig_len,
const char *comment, ...))
{
-#ifndef ANSI_PROTOTYPES
- const char *str;
- size_t orig_len;
- const char *comment;
-#endif
- va_list ap;
- size_t i, len = orig_len;
+ size_t i, len;
- VA_START (ap, comment);
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, const char *, str);
+ VA_FIXEDARG (ap, size_t, orig_len);
+ VA_FIXEDARG (ap, const char *, comment);
-#ifndef ANSI_PROTOTYPES
- str = va_arg (ap, const char *);
- len = va_arg (ap, size_t);
- comment = va_arg (ap, const char *);
-#endif
+ len = orig_len;
if (len == (size_t) -1)
len = strlen (str);
len += 1;
ASM_OUTPUT_ASCII (asm_out_file, str, len);
if (orig_len != (size_t) -1)
- fprintf (asm_out_file, "%s0\n", ASM_BYTE_OP);
+ assemble_integer (const0_rtx, 1, BITS_PER_UNIT, 1);
}
- va_end (ap);
+ VA_CLOSE (ap);
}
\f
return size;
}
+/* Given an encoding, return the number of bytes the format occupies.
+ This is only defined for fixed-size encodings, and so does not
+ include leb128. */
+
+int
+size_of_encoded_value (encoding)
+ int encoding;
+{
+ if (encoding == DW_EH_PE_omit)
+ return 0;
+
+ switch (encoding & 0x07)
+ {
+ case DW_EH_PE_absptr:
+ return POINTER_SIZE / BITS_PER_UNIT;
+ case DW_EH_PE_udata2:
+ return 2;
+ case DW_EH_PE_udata4:
+ return 4;
+ case DW_EH_PE_udata8:
+ return 8;
+ }
+ abort ();
+}
+
+/* Yield a name for a given pointer encoding. */
+
+const char *
+eh_data_format_name (format)
+ int format;
+{
+#if HAVE_DESIGNATED_INITIALIZERS
+#define S(p, v) [p] = v,
+#else
+#define S(p, v) case p: return v;
+#endif
+
+#if HAVE_DESIGNATED_INITIALIZERS
+ __extension__ static const char * const format_names[256] = {
+#else
+ switch (format) {
+#endif
+
+ S(DW_EH_PE_absptr, "absolute")
+ S(DW_EH_PE_omit, "omit")
+ S(DW_EH_PE_aligned, "aligned absolute")
+
+ S(DW_EH_PE_uleb128, "uleb128")
+ S(DW_EH_PE_udata2, "udata2")
+ S(DW_EH_PE_udata4, "udata4")
+ S(DW_EH_PE_udata8, "udata8")
+ S(DW_EH_PE_sleb128, "sleb128")
+ S(DW_EH_PE_sdata2, "sdata2")
+ S(DW_EH_PE_sdata4, "sdata4")
+ S(DW_EH_PE_sdata8, "sdata8")
+
+ S(DW_EH_PE_absptr | DW_EH_PE_pcrel, "pcrel")
+ S(DW_EH_PE_uleb128 | DW_EH_PE_pcrel, "pcrel uleb128")
+ S(DW_EH_PE_udata2 | DW_EH_PE_pcrel, "pcrel udata2")
+ S(DW_EH_PE_udata4 | DW_EH_PE_pcrel, "pcrel udata4")
+ S(DW_EH_PE_udata8 | DW_EH_PE_pcrel, "pcrel udata8")
+ S(DW_EH_PE_sleb128 | DW_EH_PE_pcrel, "pcrel sleb128")
+ S(DW_EH_PE_sdata2 | DW_EH_PE_pcrel, "pcrel sdata2")
+ S(DW_EH_PE_sdata4 | DW_EH_PE_pcrel, "pcrel sdata4")
+ S(DW_EH_PE_sdata8 | DW_EH_PE_pcrel, "pcrel sdata8")
+
+ S(DW_EH_PE_absptr | DW_EH_PE_textrel, "textrel")
+ S(DW_EH_PE_uleb128 | DW_EH_PE_textrel, "textrel uleb128")
+ S(DW_EH_PE_udata2 | DW_EH_PE_textrel, "textrel udata2")
+ S(DW_EH_PE_udata4 | DW_EH_PE_textrel, "textrel udata4")
+ S(DW_EH_PE_udata8 | DW_EH_PE_textrel, "textrel udata8")
+ S(DW_EH_PE_sleb128 | DW_EH_PE_textrel, "textrel sleb128")
+ S(DW_EH_PE_sdata2 | DW_EH_PE_textrel, "textrel sdata2")
+ S(DW_EH_PE_sdata4 | DW_EH_PE_textrel, "textrel sdata4")
+ S(DW_EH_PE_sdata8 | DW_EH_PE_textrel, "textrel sdata8")
+
+ S(DW_EH_PE_absptr | DW_EH_PE_datarel, "datarel")
+ S(DW_EH_PE_uleb128 | DW_EH_PE_datarel, "datarel uleb128")
+ S(DW_EH_PE_udata2 | DW_EH_PE_datarel, "datarel udata2")
+ S(DW_EH_PE_udata4 | DW_EH_PE_datarel, "datarel udata4")
+ S(DW_EH_PE_udata8 | DW_EH_PE_datarel, "datarel udata8")
+ S(DW_EH_PE_sleb128 | DW_EH_PE_datarel, "datarel sleb128")
+ S(DW_EH_PE_sdata2 | DW_EH_PE_datarel, "datarel sdata2")
+ S(DW_EH_PE_sdata4 | DW_EH_PE_datarel, "datarel sdata4")
+ S(DW_EH_PE_sdata8 | DW_EH_PE_datarel, "datarel sdata8")
+
+ S(DW_EH_PE_absptr | DW_EH_PE_funcrel, "funcrel")
+ S(DW_EH_PE_uleb128 | DW_EH_PE_funcrel, "funcrel uleb128")
+ S(DW_EH_PE_udata2 | DW_EH_PE_funcrel, "funcrel udata2")
+ S(DW_EH_PE_udata4 | DW_EH_PE_funcrel, "funcrel udata4")
+ S(DW_EH_PE_udata8 | DW_EH_PE_funcrel, "funcrel udata8")
+ S(DW_EH_PE_sleb128 | DW_EH_PE_funcrel, "funcrel sleb128")
+ S(DW_EH_PE_sdata2 | DW_EH_PE_funcrel, "funcrel sdata2")
+ S(DW_EH_PE_sdata4 | DW_EH_PE_funcrel, "funcrel sdata4")
+ S(DW_EH_PE_sdata8 | DW_EH_PE_funcrel, "funcrel sdata8")
+
+ S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_pcrel,
+ "indirect pcrel")
+ S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_pcrel,
+ "indirect pcrel uleb128")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_pcrel,
+ "indirect pcrel udata2")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_pcrel,
+ "indirect pcrel udata4")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_pcrel,
+ "indirect pcrel udata8")
+ S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_pcrel,
+ "indirect pcrel sleb128")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_pcrel,
+ "indirect pcrel sdata2")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_pcrel,
+ "indirect pcrel sdata4")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_pcrel,
+ "indirect pcrel sdata8")
+
+ S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_textrel,
+ "indirect textrel")
+ S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_textrel,
+ "indirect textrel uleb128")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_textrel,
+ "indirect textrel udata2")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_textrel,
+ "indirect textrel udata4")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_textrel,
+ "indirect textrel udata8")
+ S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_textrel,
+ "indirect textrel sleb128")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_textrel,
+ "indirect textrel sdata2")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_textrel,
+ "indirect textrel sdata4")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_textrel,
+ "indirect textrel sdata8")
+
+ S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_datarel,
+ "indirect datarel")
+ S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_datarel,
+ "indirect datarel uleb128")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_datarel,
+ "indirect datarel udata2")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_datarel,
+ "indirect datarel udata4")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_datarel,
+ "indirect datarel udata8")
+ S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_datarel,
+ "indirect datarel sleb128")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_datarel,
+ "indirect datarel sdata2")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_datarel,
+ "indirect datarel sdata4")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_datarel,
+ "indirect datarel sdata8")
+
+ S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_funcrel,
+ "indirect funcrel")
+ S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_funcrel,
+ "indirect funcrel uleb128")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_funcrel,
+ "indirect funcrel udata2")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_funcrel,
+ "indirect funcrel udata4")
+ S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_funcrel,
+ "indirect funcrel udata8")
+ S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_funcrel,
+ "indirect funcrel sleb128")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_funcrel,
+ "indirect funcrel sdata2")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_funcrel,
+ "indirect funcrel sdata4")
+ S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_funcrel,
+ "indirect funcrel sdata8")
+
+#if HAVE_DESIGNATED_INITIALIZERS
+ };
+
+ if (format < 0 || format > 0xff || format_names[format] == NULL)
+ abort ();
+ return format_names[format];
+#else
+ }
+ abort ();
+#endif
+}
+
/* Output an unsigned LEB128 quantity. */
void
dw2_asm_output_data_uleb128 VPARAMS ((unsigned HOST_WIDE_INT value,
const char *comment, ...))
{
-#ifndef ANSI_PROTOTYPES
- unsigned HOST_WIDE_INT value;
- const char *comment;
-#endif
- va_list ap;
-
- VA_START (ap, comment);
-
-#ifndef ANSI_PROTOTYPES
- value = va_arg (ap, unsigned HOST_WIDE_INT);
- comment = va_arg (ap, const char *);
-#endif
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, unsigned HOST_WIDE_INT, value);
+ VA_FIXEDARG (ap, const char *, comment);
#ifdef HAVE_AS_LEB128
- fputs ("\t.uleb128\t", asm_out_file);
+ fputs ("\t.uleb128 ", asm_out_file);
fprintf (asm_out_file, HOST_WIDE_INT_PRINT_HEX, value);
if (flag_debug_asm && comment)
#else
{
unsigned HOST_WIDE_INT work = value;
+ const char *byte_op = targetm.asm_out.byte_op;
- fputs (ASM_BYTE_OP, asm_out_file);
+ if (byte_op)
+ fputs (byte_op, asm_out_file);
do
{
int byte = (work & 0x7f);
/* More bytes to follow. */
byte |= 0x80;
- fprintf (asm_out_file, "0x%x", byte);
- if (work != 0)
- fputc (',', asm_out_file);
+ if (byte_op)
+ {
+ fprintf (asm_out_file, "0x%x", byte);
+ if (work != 0)
+ fputc (',', asm_out_file);
+ }
+ else
+ assemble_integer (GEN_INT (byte), 1, BITS_PER_UNIT, 1);
}
while (work != 0);
#endif
fputc ('\n', asm_out_file);
- va_end (ap);
+ VA_CLOSE (ap);
}
/* Output an signed LEB128 quantity. */
dw2_asm_output_data_sleb128 VPARAMS ((HOST_WIDE_INT value,
const char *comment, ...))
{
-#ifndef ANSI_PROTOTYPES
- HOST_WIDE_INT value;
- const char *comment;
-#endif
- va_list ap;
-
- VA_START (ap, comment);
-
-#ifndef ANSI_PROTOTYPES
- value = va_arg (ap, HOST_WIDE_INT);
- comment = va_arg (ap, const char *);
-#endif
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, HOST_WIDE_INT, value);
+ VA_FIXEDARG (ap, const char *, comment);
#ifdef HAVE_AS_LEB128
- fputs ("\t.sleb128\t", asm_out_file);
- fprintf (asm_out_file, HOST_WIDE_INT_PRINT_HEX, value);
+ fputs ("\t.sleb128 ", asm_out_file);
+ fprintf (asm_out_file, HOST_WIDE_INT_PRINT_DEC, value);
if (flag_debug_asm && comment)
{
{
HOST_WIDE_INT work = value;
int more, byte;
+ const char *byte_op = targetm.asm_out.byte_op;
- fputs (ASM_BYTE_OP, asm_out_file);
+ if (byte_op)
+ fputs (byte_op, asm_out_file);
do
{
byte = (work & 0x7f);
if (more)
byte |= 0x80;
- fprintf (asm_out_file, "0x%x", byte);
- if (more)
- fputc (',', asm_out_file);
+ if (byte_op)
+ {
+ fprintf (asm_out_file, "0x%x", byte);
+ if (more)
+ fputc (',', asm_out_file);
+ }
+ else
+ assemble_integer (GEN_INT (byte), 1, BITS_PER_UNIT, 1);
}
while (more);
#endif
fputc ('\n', asm_out_file);
- va_end (ap);
+ VA_CLOSE (ap);
}
void
const char *lab2 ATTRIBUTE_UNUSED,
const char *comment, ...))
{
-#ifndef ANSI_PROTOTYPES
- const char *lab1, *lab2;
- const char *comment;
-#endif
- va_list ap;
-
- VA_START (ap, comment);
-
-#ifndef ANSI_PROTOTYPES
- lab1 = va_arg (ap, const char *);
- lab2 = va_arg (ap, const char *);
- comment = va_arg (ap, const char *);
-#endif
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, const char *, lab1);
+ VA_FIXEDARG (ap, const char *, lab2);
+ VA_FIXEDARG (ap, const char *, comment);
#ifdef HAVE_AS_LEB128
- fputs ("\t.uleb128\t", asm_out_file);
+ fputs ("\t.uleb128 ", asm_out_file);
assemble_name (asm_out_file, lab1);
fputc ('-', asm_out_file);
assemble_name (asm_out_file, lab2);
}
fputc ('\n', asm_out_file);
- va_end (ap);
+ VA_CLOSE (ap);
}
void
const char *lab2 ATTRIBUTE_UNUSED,
const char *comment, ...))
{
-#ifndef ANSI_PROTOTYPES
- const char *lab1, *lab2;
- const char *comment;
-#endif
- va_list ap;
-
- VA_START (ap, comment);
-
-#ifndef ANSI_PROTOTYPES
- lab1 = va_arg (ap, const char *);
- lab2 = va_arg (ap, const char *);
- comment = va_arg (ap, const char *);
-#endif
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, const char *, lab1);
+ VA_FIXEDARG (ap, const char *, lab2);
+ VA_FIXEDARG (ap, const char *, comment);
#ifdef HAVE_AS_LEB128
- fputs ("\t.sleb128\t", asm_out_file);
+ fputs ("\t.sleb128 ", asm_out_file);
assemble_name (asm_out_file, lab1);
fputc ('-', asm_out_file);
assemble_name (asm_out_file, lab2);
}
fputc ('\n', asm_out_file);
- va_end (ap);
+ VA_CLOSE (ap);
+}
+\f
+static int mark_indirect_pool_entry PARAMS ((splay_tree_node, void *));
+static void mark_indirect_pool PARAMS ((PTR arg));
+static rtx dw2_force_const_mem PARAMS ((rtx));
+static int dw2_output_indirect_constant_1 PARAMS ((splay_tree_node, void *));
+
+static splay_tree indirect_pool;
+
+#if defined(HAVE_GAS_HIDDEN) && defined(SUPPORTS_ONE_ONLY)
+# define USE_LINKONCE_INDIRECT 1
+#else
+# define USE_LINKONCE_INDIRECT 0
+#endif
+
+/* Mark all indirect constants for GC. */
+
+static int
+mark_indirect_pool_entry (node, data)
+ splay_tree_node node;
+ void* data ATTRIBUTE_UNUSED;
+{
+ ggc_mark_nonnull_tree ((tree) node->value);
+ return 0;
+}
+
+/* Mark all indirect constants for GC. */
+
+static void
+mark_indirect_pool (arg)
+ PTR arg ATTRIBUTE_UNUSED;
+{
+ splay_tree_foreach (indirect_pool, mark_indirect_pool_entry, NULL);
+}
+
+/* Put X, a SYMBOL_REF, in memory. Return a SYMBOL_REF to the allocated
+ memory. Differs from force_const_mem in that a single pool is used for
+ the entire unit of translation, and the memory is not guaranteed to be
+ "near" the function in any interesting sense. */
+
+static rtx
+dw2_force_const_mem (x)
+ rtx x;
+{
+ splay_tree_node node;
+ const char *str;
+ tree decl;
+
+ if (! indirect_pool)
+ {
+ indirect_pool = splay_tree_new (splay_tree_compare_pointers, NULL, NULL);
+ ggc_add_root (&indirect_pool, 1, sizeof indirect_pool, mark_indirect_pool);
+ }
+
+ if (GET_CODE (x) != SYMBOL_REF)
+ abort ();
+
+ STRIP_NAME_ENCODING (str, XSTR (x, 0));
+ node = splay_tree_lookup (indirect_pool, (splay_tree_key) str);
+ if (node)
+ decl = (tree) node->value;
+ else
+ {
+ tree id;
+
+ if (USE_LINKONCE_INDIRECT)
+ {
+ char *ref_name = alloca (strlen (str) + sizeof "DW.ref.");
+
+ sprintf (ref_name, "DW.ref.%s", str);
+ id = get_identifier (ref_name);
+ decl = build_decl (VAR_DECL, id, ptr_type_node);
+ DECL_ARTIFICIAL (decl) = 1;
+ TREE_PUBLIC (decl) = 1;
+ DECL_INITIAL (decl) = decl;
+ make_decl_one_only (decl);
+ }
+ else
+ {
+ extern int const_labelno;
+ char label[32];
+
+ ASM_GENERATE_INTERNAL_LABEL (label, "LC", const_labelno);
+ ++const_labelno;
+ id = get_identifier (label);
+ decl = build_decl (VAR_DECL, id, ptr_type_node);
+ DECL_ARTIFICIAL (decl) = 1;
+ TREE_STATIC (decl) = 1;
+ DECL_INITIAL (decl) = decl;
+ }
+
+ id = maybe_get_identifier (str);
+ if (id)
+ TREE_SYMBOL_REFERENCED (id) = 1;
+
+ splay_tree_insert (indirect_pool, (splay_tree_key) str,
+ (splay_tree_value) decl);
+ }
+
+ return XEXP (DECL_RTL (decl), 0);
+}
+
+/* A helper function for dw2_output_indirect_constants called through
+ splay_tree_foreach. Emit one queued constant to memory. */
+
+static int
+dw2_output_indirect_constant_1 (node, data)
+ splay_tree_node node;
+ void* data ATTRIBUTE_UNUSED;
+{
+ const char *sym;
+ rtx sym_ref;
+
+ sym = (const char *) node->key;
+ sym_ref = gen_rtx_SYMBOL_REF (Pmode, sym);
+ if (USE_LINKONCE_INDIRECT)
+ fprintf (asm_out_file, "\t.hidden DW.ref.%s\n", sym);
+ assemble_variable ((tree) node->value, 1, 1, 1);
+ assemble_integer (sym_ref, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
+
+ return 0;
+}
+
+/* Emit the constants queued through dw2_force_const_mem. */
+
+void
+dw2_output_indirect_constants ()
+{
+ if (indirect_pool)
+ splay_tree_foreach (indirect_pool, dw2_output_indirect_constant_1, NULL);
+}
+
+/* Like dw2_asm_output_addr_rtx, but encode the pointer as directed. */
+
+void
+dw2_asm_output_encoded_addr_rtx VPARAMS ((int encoding,
+ rtx addr,
+ const char *comment, ...))
+{
+ int size;
+
+ VA_OPEN (ap, comment);
+ VA_FIXEDARG (ap, int, encoding);
+ VA_FIXEDARG (ap, rtx, addr);
+ VA_FIXEDARG (ap, const char *, comment);
+
+ size = size_of_encoded_value (encoding);
+
+ if (encoding == DW_EH_PE_aligned)
+ {
+ assemble_align (POINTER_SIZE);
+ assemble_integer (addr, size, POINTER_SIZE, 1);
+ return;
+ }
+
+ /* NULL is _always_ represented as a plain zero, as is 1 for Ada's
+ "all others". */
+ if (addr == const0_rtx || addr == const1_rtx)
+ assemble_integer (addr, size, BITS_PER_UNIT, 1);
+ else
+ {
+ restart:
+ /* Allow the target first crack at emitting this. Some of the
+ special relocations require special directives instead of
+ just ".4byte" or whatever. */
+#ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX
+ ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX (asm_out_file, encoding, size,
+ addr, done);
+#endif
+
+ /* Indirection is used to get dynamic relocations out of a
+ read-only section. */
+ if (encoding & DW_EH_PE_indirect)
+ {
+ /* It is very tempting to use force_const_mem so that we share data
+ with the normal constant pool. However, we've already emitted
+ the constant pool for this function. Moreover, we'd like to
+ share these constants across the entire unit of translation,
+ or better, across the entire application (or DSO). */
+ addr = dw2_force_const_mem (addr);
+ encoding &= ~DW_EH_PE_indirect;
+ goto restart;
+ }
+
+ switch (encoding & 0xF0)
+ {
+ case DW_EH_PE_absptr:
+ dw2_assemble_integer (size, addr);
+ break;
+
+ case DW_EH_PE_pcrel:
+ if (GET_CODE (addr) != SYMBOL_REF)
+ abort ();
+#ifdef ASM_OUTPUT_DWARF_PCREL
+ ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, XSTR (addr, 0));
+#else
+ dw2_assemble_integer (size, gen_rtx_MINUS (Pmode, addr, pc_rtx));
+#endif
+ break;
+
+ default:
+ /* Other encodings should have been handled by
+ ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX. */
+ abort ();
+ }
+
+#ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX
+ done:;
+#endif
+ }
+
+ if (flag_debug_asm && comment)
+ {
+ fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START);
+ vfprintf (asm_out_file, comment, ap);
+ }
+ fputc ('\n', asm_out_file);
+
+ VA_CLOSE (ap);
}
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