/* Definitions of target machine for GNU compiler. NEC V850 series
- Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
+ Free Software Foundation, Inc.
Contributed by Jeff Law (law@cygnus.com).
This file is part of GNU CC.
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#include "svr4.h" /* Automatically does #undef CPP_PREDEFINES */
+#ifndef GCC_V850_H
+#define GCC_V850_H
/* These are defiend in svr4.h but we want to override them. */
#undef ASM_FINAL_SPEC
/* Information about the various small memory areas. */
struct small_memory_info {
- char *name;
+ const char *name;
const char *value;
long max;
long physical_max;
extern struct small_memory_info small_memory[(int)SMALL_MEMORY_max];
-/* This macro is similar to `TARGET_SWITCHES' but defines names of
- command options that have values. Its definition is an
- initializer with a subgrouping for each command option.
-
- Each subgrouping contains a string constant, that defines the
- fixed part of the option name, and the address of a variable. The
- variable, type `char *', is set to the variable part of the given
- option if the fixed part matches. The actual option name is made
- by appending `-m' to the specified name.
-
- Here is an example which defines `-mshort-data-NUMBER'. If the
- given option is `-mshort-data-512', the variable `m88k_short_data'
- will be set to the string `"512"'.
-
- extern char *m88k_short_data;
- #define TARGET_OPTIONS \
- { { "short-data-", &m88k_short_data } } */
-
#define TARGET_OPTIONS \
{ \
{ "tda=", &small_memory[ (int)SMALL_MEMORY_TDA ].value, \
This is not true on the NEC V850. */
#define WORDS_BIG_ENDIAN 0
-/* Number of bits in an addressable storage unit */
-#define BITS_PER_UNIT 8
-
-/* Width in bits of a "word", which is the contents of a machine register.
- Note that this is not necessarily the width of data type `int';
- if using 16-bit ints on a 68000, this would still be 32.
- But on a machine with 16-bit registers, this would be 16. */
-#define BITS_PER_WORD 32
-
/* Width of a word, in units (bytes). */
#define UNITS_PER_WORD 4
-/* Width in bits of a pointer.
- See also the macro `Pmode' defined below. */
-#define POINTER_SIZE 32
-
/* Define this macro if it is advisable to hold scalars in registers
in a wider mode than that declared by the program. In such cases,
the value is constrained to be within the bounds of the declared
/* Define this if move instructions will actually fail to work
when given unaligned data. */
-#ifndef STRICT_ALIGNMENT
-#define STRICT_ALIGNMENT TARGET_V850
-#endif
+#define STRICT_ALIGNMENT 1
/* Define this as 1 if `char' should by default be signed; else as 0.
On the NEC V850, loads do sign extension, so make this default. */
#define DEFAULT_SIGNED_CHAR 1
-
-/* Define results of standard character escape sequences. */
-#define TARGET_BELL 007
-#define TARGET_BS 010
-#define TARGET_TAB 011
-#define TARGET_NEWLINE 012
-#define TARGET_VT 013
-#define TARGET_FF 014
-#define TARGET_CR 015
\f
/* Standard register usage. */
#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0
+#define RETURN_ADDR_RTX(COUNT, FP) v850_return_addr (COUNT)
\f
/* Define a data type for recording info about an argument list
during the scan of that argument list. This data type should
#define TRAMPOLINE_TEMPLATE(FILE) \
do { \
fprintf (FILE, "\tjarl .+4,r12\n"); \
- fprintf (FILE, "\tld.w 12[r12],r5\n"); \
+ fprintf (FILE, "\tld.w 12[r12],r20\n"); \
fprintf (FILE, "\tld.w 16[r12],r12\n"); \
fprintf (FILE, "\tjmp [r12]\n"); \
fprintf (FILE, "\tnop\n"); \
/* Tell final.c how to eliminate redundant test instructions. */
/* Here we define machine-dependent flags and fields in cc_status
- (see `conditions.h'). No extra ones are needed for the vax. */
+ (see `conditions.h'). No extra ones are needed for the VAX. */
/* Store in cc_status the expressions
that the condition codes will describe
than accessing full words. */
#define SLOW_BYTE_ACCESS 1
-/* Define this if zero-extension is slow (more than one real instruction). */
-#define SLOW_ZERO_EXTEND
-
/* According expr.c, a value of around 6 should minimize code size, and
for the V850 series, that's our primary concern. */
#define MOVE_RATIO 6
`in_text' and `in_data'. You need not define this macro on a
system with no other sections (that GCC needs to use). */
#undef EXTRA_SECTIONS
-#define EXTRA_SECTIONS in_tdata, in_sdata, in_zdata, in_const, in_ctors, \
-in_dtors, in_rozdata, in_rosdata, in_sbss, in_zbss, in_zcommon, in_scommon
+#define EXTRA_SECTIONS in_tdata, in_sdata, in_zdata, in_const, \
+ in_rozdata, in_rosdata, in_sbss, in_zbss, in_zcommon, in_scommon
/* One or more functions to be defined in `varasm.c'. These
functions should do jobs analogous to those of `text_section' and
/* This could be done a lot more cleanly using ANSI C ... */
#define EXTRA_SECTION_FUNCTIONS \
CONST_SECTION_FUNCTION \
-CTORS_SECTION_FUNCTION \
-DTORS_SECTION_FUNCTION \
\
void \
sdata_section () \
#define ROSDATA_SECTION_ASM_OP "\t.section .rosdata,\"a\""
#define ROZDATA_SECTION_ASM_OP "\t.section .rozdata,\"a\""
-#define SCOMMON_ASM_OP ".scomm"
-#define ZCOMMON_ASM_OP ".zcomm"
-#define TCOMMON_ASM_OP ".tcomm"
-
-/* A C statement or statements to switch to the appropriate section
- for output of EXP. You can assume that EXP is either a `VAR_DECL'
- node or a constant of some sort. RELOC indicates whether the
- initial value of EXP requires link-time relocations. Select the
- section by calling `text_section' or one of the alternatives for
- other sections.
-
- Do not define this macro if you put all read-only variables and
- constants in the read-only data section (usually the text section). */
-#undef SELECT_SECTION
-#define SELECT_SECTION(EXP, RELOC) \
-do { \
- if (TREE_CODE (EXP) == VAR_DECL) \
- { \
- int is_const; \
- if (!TREE_READONLY (EXP) \
- || TREE_SIDE_EFFECTS (EXP) \
- || !DECL_INITIAL (EXP) \
- || (DECL_INITIAL (EXP) != error_mark_node \
- && !TREE_CONSTANT (DECL_INITIAL (EXP)))) \
- is_const = FALSE; \
- else \
- is_const = TRUE; \
- \
- switch (v850_get_data_area (EXP)) \
- { \
- case DATA_AREA_ZDA: \
- if (is_const) \
- rozdata_section (); \
- else \
- zdata_section (); \
- break; \
- \
- case DATA_AREA_TDA: \
- tdata_section (); \
- break; \
- \
- case DATA_AREA_SDA: \
- if (is_const) \
- rosdata_section (); \
- else \
- sdata_section (); \
- break; \
- \
- default: \
- if (is_const) \
- const_section (); \
- else \
- data_section (); \
- break; \
- } \
- } \
- else if (TREE_CODE (EXP) == STRING_CST) \
- { \
- if (! flag_writable_strings) \
- const_section (); \
- else \
- data_section (); \
- } \
- \
- else \
- const_section (); \
- \
-} while (0)
+#define SCOMMON_ASM_OP "\t.scomm\t"
+#define ZCOMMON_ASM_OP "\t.zcomm\t"
+#define TCOMMON_ASM_OP "\t.tcomm\t"
/* A C statement or statements to switch to the appropriate section
for output of RTX in mode MODE. You can assume that RTX is some
Do not define this macro if you put all constants in the read-only
data section. */
-/* #define SELECT_RTX_SECTION(MODE, RTX) */
+/* #define SELECT_RTX_SECTION(MODE, RTX, ALIGN) */
/* Output at beginning/end of assembler file. */
#undef ASM_FILE_START
#define ASM_APP_OFF "#NO_APP\n"
-/* This is how to output an assembler line defining a `double' constant.
- It is .double or .float, depending. */
-
-#define ASM_OUTPUT_DOUBLE(FILE, VALUE) \
-do { char dstr[30]; \
- REAL_VALUE_TO_DECIMAL ((VALUE), "%.20e", dstr); \
- fprintf (FILE, "\t.double %s\n", dstr); \
- } while (0)
-
-
-/* This is how to output an assembler line defining a `float' constant. */
-#define ASM_OUTPUT_FLOAT(FILE, VALUE) \
-do { char dstr[30]; \
- REAL_VALUE_TO_DECIMAL ((VALUE), "%.20e", dstr); \
- fprintf (FILE, "\t.float %s\n", dstr); \
- } while (0)
+#undef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX "_"
-/* This is how to output an assembler line defining an `int' constant. */
+/* When assemble_integer is used to emit the offsets for a switch
+ table it can encounter (TRUNCATE:HI (MINUS:SI (LABEL_REF:SI) (LABEL_REF:SI))).
+ output_addr_const will normally barf at this, but it is OK to omit
+ the truncate and just emit the difference of the two labels. The
+ .hword directive will automatically handle the truncation for us. */
-#define ASM_OUTPUT_INT(FILE, VALUE) \
-( fprintf (FILE, "\t.long "), \
- output_addr_const (FILE, (VALUE)), \
- fprintf (FILE, "\n"))
-
-/* Likewise for `char' and `short' constants. */
-
-#define ASM_OUTPUT_SHORT(FILE, VALUE) \
-( fprintf (FILE, "\t.hword "), \
- output_addr_const (FILE, (VALUE)), \
- fprintf (FILE, "\n"))
-
-#define ASM_OUTPUT_CHAR(FILE, VALUE) \
-( fprintf (FILE, "\t.byte "), \
- output_addr_const (FILE, (VALUE)), \
- fprintf (FILE, "\n"))
-
-/* This is how to output an assembler line for a numeric constant byte. */
-#define ASM_OUTPUT_BYTE(FILE, VALUE) \
- fprintf (FILE, "\t.byte 0x%x\n", (VALUE))
-
-/* Define the parentheses used to group arithmetic operations
- in assembler code. */
-
-#define ASM_OPEN_PAREN "("
-#define ASM_CLOSE_PAREN ")"
+#define OUTPUT_ADDR_CONST_EXTRA(FILE, X, FAIL) \
+ if (GET_CODE (x) == TRUNCATE) \
+ output_addr_const (FILE, XEXP (X, 0)); \
+ else \
+ goto FAIL;
/* This says how to output the assembler to define a global
uninitialized but not common symbol. */
/* This is how to output a command to make the user-level label named NAME
defined for reference from other files. */
-#define ASM_GLOBALIZE_LABEL(FILE, NAME) \
- do { fputs ("\t.global ", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0)
+#define ASM_GLOBALIZE_LABEL(FILE, NAME) \
+ do \
+ { \
+ fputs ("\t.global ", FILE); \
+ assemble_name (FILE, NAME); \
+ fputs ("\n", FILE); \
+ } \
+ while (0)
/* This is how to output a reference to a user-level label named NAME.
`assemble_name' uses this. */
#undef ASM_OUTPUT_LABELREF
-#define ASM_OUTPUT_LABELREF(FILE, NAME) \
+#define ASM_OUTPUT_LABELREF(FILE, NAME) \
do { \
- const char * real_name; \
+ const char* real_name; \
STRIP_NAME_ENCODING (real_name, (NAME)); \
- fprintf (FILE, "_%s", real_name); \
- } while (0)
+ asm_fprintf (FILE, "%U%s", real_name); \
+ } while (0)
+
/* Store in OUTPUT a string (made with alloca) containing
an assembler-name for a local static variable named NAME.
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
-#define DBX_REGISTER_NUMBER(REGNO) REGNO
-
-/* Define to use software floating point emulator for REAL_ARITHMETIC and
- decimal <-> binary conversion. */
-#define REAL_ARITHMETIC
-
/* Specify the machine mode that this machine uses
for the index in the tablejump instruction. */
#define CASE_VECTOR_MODE (TARGET_BIG_SWITCH ? SImode : HImode)
/* Byte and short loads sign extend the value to a word. */
#define LOAD_EXTEND_OP(MODE) SIGN_EXTEND
-/* Specify the tree operation to be used to convert reals to integers. */
-#define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR
-
/* This flag, if defined, says the same insns that convert to a signed fixnum
also convert validly to an unsigned one. */
#define FIXUNS_TRUNC_LIKE_FIX_TRUNC
-/* This is the kind of divide that is easiest to do in the general case. */
-#define EASY_DIV_EXPR TRUNC_DIV_EXPR
-
/* Max number of bytes we can move from memory to memory
in one reasonably fast instruction. */
#define MOVE_MAX 4
so give the MEM rtx a byte's mode. */
#define FUNCTION_MODE QImode
-/* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
- is a valid machine specific attribute for DECL.
- The attributes in ATTRIBUTES have previously been assigned to DECL. */
-#define VALID_MACHINE_DECL_ATTRIBUTE(DECL, ATTRIBUTES, IDENTIFIER, ARGS) \
- v850_valid_machine_decl_attribute (DECL, IDENTIFIER, ARGS)
-
-/* A C statement that assigns default attributes to a newly created DECL. */
-#define SET_DEFAULT_DECL_ATTRIBUTES(decl, attr) \
- v850_set_default_decl_attr (decl)
-
/* Tell compiler we want to support GHS pragmas */
-#define HANDLE_PRAGMA(get, unget, name) v850_handle_pragma (get, unget, name)
-
-enum v850_pragma_state
-{
- V850_PS_START,
- V850_PS_SHOULD_BE_DONE,
- V850_PS_BAD,
- V850_PS_MAYBE_SECTION_NAME,
- V850_PS_EXPECTING_EQUALS,
- V850_PS_EXPECTING_SECTION_ALIAS,
- V850_PS_MAYBE_COMMA
-};
-
-enum v850_pragma_type
-{
- V850_PT_UNKNOWN,
- V850_PT_INTERRUPT,
- V850_PT_SECTION,
- V850_PT_START_SECTION,
- V850_PT_END_SECTION
-};
+#define REGISTER_TARGET_PRAGMAS(PFILE) do { \
+ cpp_register_pragma (PFILE, "ghs", "interrupt", ghs_pragma_interrupt); \
+ cpp_register_pragma (PFILE, "ghs", "section", ghs_pragma_section); \
+ cpp_register_pragma (PFILE, "ghs", "starttda", ghs_pragma_starttda); \
+ cpp_register_pragma (PFILE, "ghs", "startsda", ghs_pragma_startsda); \
+ cpp_register_pragma (PFILE, "ghs", "startzda", ghs_pragma_startzda); \
+ cpp_register_pragma (PFILE, "ghs", "endtda", ghs_pragma_endtda); \
+ cpp_register_pragma (PFILE, "ghs", "endsda", ghs_pragma_endsda); \
+ cpp_register_pragma (PFILE, "ghs", "endzda", ghs_pragma_endzda); \
+} while (0)
/* enum GHS_SECTION_KIND is an enumeration of the kinds of sections that
can appear in the "ghs section" pragma. These names are used to index
COUNT_OF_GHS_SECTION_KINDS /* must be last */
};
+/* The following code is for handling pragmas supported by the
+ v850 compiler produced by Green Hills Software. This is at
+ the specific request of a customer. */
+
+typedef struct data_area_stack_element
+{
+ struct data_area_stack_element * prev;
+ v850_data_area data_area; /* Current default data area. */
+} data_area_stack_element;
+
+/* Track the current data area set by the
+ data area pragma (which can be nested). */
+extern data_area_stack_element * data_area_stack;
+
+/* Names of the various data areas used on the v850. */
+extern union tree_node * GHS_default_section_names [(int) COUNT_OF_GHS_SECTION_KINDS];
+extern union tree_node * GHS_current_section_names [(int) COUNT_OF_GHS_SECTION_KINDS];
+
/* The assembler op to start the file. */
#define FILE_ASM_OP "\t.file\n"
#define EP_REGNUM 30 /* ep register number */
-#define ENCODE_SECTION_INFO(DECL) \
- do \
- { \
- if ((TREE_STATIC (DECL) || DECL_EXTERNAL (DECL)) \
- && TREE_CODE (DECL) == VAR_DECL) \
- v850_encode_data_area (DECL); \
- } \
+#define ENCODE_SECTION_INFO(DECL, FIRST) \
+ do \
+ { \
+ if ((FIRST) && TREE_CODE (DECL) == VAR_DECL \
+ && (TREE_STATIC (DECL) || DECL_EXTERNAL (DECL))) \
+ v850_encode_data_area (DECL); \
+ } \
while (0)
#define ZDA_NAME_FLAG_CHAR '@'
#define SDA_NAME_P(NAME) (*(NAME) == SDA_NAME_FLAG_CHAR)
#define ENCODED_NAME_P(SYMBOL_NAME) \
- (ZDA_NAME_P (SYMBOL_NAME) \
+ ( ZDA_NAME_P (SYMBOL_NAME) \
|| TDA_NAME_P (SYMBOL_NAME) \
|| SDA_NAME_P (SYMBOL_NAME))
-#define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) \
+#define STRIP_NAME_ENCODING(VAR, SYMBOL_NAME) \
(VAR) = (SYMBOL_NAME) + (ENCODED_NAME_P (SYMBOL_NAME) || *(SYMBOL_NAME) == '*')
/* Define this if you have defined special-purpose predicates in the
matched by the predicate. The list should have a trailing comma. */
#define PREDICATE_CODES \
-{ "ep_memory_operand", { MEM }}, \
{ "reg_or_0_operand", { REG, SUBREG, CONST_INT, CONST_DOUBLE }}, \
{ "reg_or_int5_operand", { REG, SUBREG, CONST_INT }}, \
{ "call_address_operand", { REG, SYMBOL_REF }}, \
{ "register_is_ok_for_epilogue",{ REG }}, \
{ "not_power_of_two_operand", { CONST_INT }},
+#endif /* ! GCC_V850_H */
OSDN Git Service
