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gcc.gnu.org Git - gcc.git/blob - gcc/config/ia64/sysv4.h
1 /* Override definitions in elfos.h/svr4.h to be correct for IA64. */
3 #undef TARGET_INIT_LIBFUNCS
4 #define TARGET_INIT_LIBFUNCS ia64_sysv4_init_libfuncs
6 /* We want DWARF2 as specified by the IA64 ABI. */
7 #undef PREFERRED_DEBUGGING_TYPE
8 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
10 /* Stabs does not work properly for 64-bit targets. */
11 #undef DBX_DEBUGGING_INFO
13 /* Various pseudo-ops for which the Intel assembler uses non-standard
17 #define STRING_ASM_OP "\tstringz\t"
20 #define SKIP_ASM_OP "\t.skip\t"
23 #define COMMON_ASM_OP "\t.common\t"
25 #undef ASCII_DATA_ASM_OP
26 #define ASCII_DATA_ASM_OP "\tstring\t"
28 /* ia64-specific options for gas
29 ??? ia64 gas doesn't accept standard svr4 assembler options? */
31 #define ASM_SPEC "-x %{mconstant-gp} %{mauto-pic} %(asm_extra)"
33 /* ??? Unfortunately, .lcomm doesn't work, because it puts things in either
34 .bss or .sbss, and we can't control the decision of which is used. When
35 I use .lcomm, I get a cryptic "Section group has no member" error from
36 the Intel simulator. So we must explicitly put variables in .bss
37 instead. This matters only if we care about the Intel assembler. */
39 /* This is asm_output_aligned_bss from varasm.c without the
40 (*targetm.asm_out.globalize_label) call at the beginning. */
42 /* This is for final.c, because it is used by ASM_DECLARE_OBJECT_NAME. */
43 extern int size_directive_output
;
45 #undef ASM_OUTPUT_ALIGNED_LOCAL
46 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
48 if ((DECL) && sdata_symbolic_operand (XEXP (DECL_RTL (DECL), 0), Pmode)) \
49 switch_to_section (sbss_section); \
51 switch_to_section (bss_section); \
52 ASM_OUTPUT_ALIGN (FILE, floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
53 ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL); \
54 ASM_OUTPUT_SKIP (FILE, SIZE ? SIZE : 1); \
57 /* The # tells the Intel assembler that this is not a register name.
58 However, we can't emit the # in a label definition, so we set a variable
59 in ASM_OUTPUT_LABEL to control whether we want the postfix here or not.
60 We append the # to the label name, but since NAME can be an expression
61 we have to scan it for a non-label character and insert the # there. */
63 #undef ASM_OUTPUT_LABELREF
64 #define ASM_OUTPUT_LABELREF(STREAM, NAME) \
66 const char *name_ = NAME; \
70 fputs (user_label_prefix, STREAM); \
71 fputs (name_, STREAM); \
72 if (!ia64_asm_output_label) \
73 fputc ('#', STREAM); \
76 /* Intel assembler requires both flags and type if declaring a non-predefined
78 #undef INIT_SECTION_ASM_OP
79 #define INIT_SECTION_ASM_OP "\t.section\t.init,\"ax\",\"progbits\""
80 #undef FINI_SECTION_ASM_OP
81 #define FINI_SECTION_ASM_OP "\t.section\t.fini,\"ax\",\"progbits\""
83 /* svr4.h undefines this, so we need to define it here. */
84 #define DBX_REGISTER_NUMBER(REGNO) \
85 ia64_dbx_register_number(REGNO)
87 /* Things that svr4.h defines to the wrong type, because it assumes 32 bit
88 ints and 32 bit longs. */
91 #define SIZE_TYPE "long unsigned int"
94 #define PTRDIFF_TYPE "long int"
97 #define WCHAR_TYPE "int"
99 #undef WCHAR_TYPE_SIZE
100 #define WCHAR_TYPE_SIZE 32
102 /* We redefine this to use the ia64 .proc pseudo-op. */
104 #undef ASM_DECLARE_FUNCTION_NAME
105 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
107 fputs ("\t.proc ", FILE); \
108 assemble_name (FILE, NAME); \
109 fputc ('\n', FILE); \
110 ASM_OUTPUT_LABEL (FILE, NAME); \
113 /* We redefine this to use the ia64 .endp pseudo-op. */
115 #undef ASM_DECLARE_FUNCTION_SIZE
116 #define ASM_DECLARE_FUNCTION_SIZE(FILE, NAME, DECL) \
118 fputs ("\t.endp ", FILE); \
119 assemble_name (FILE, NAME); \
120 fputc ('\n', FILE); \
123 /* Override default elf definition. */
124 #undef TARGET_ASM_SELECT_RTX_SECTION
125 #define TARGET_ASM_SELECT_RTX_SECTION ia64_select_rtx_section
127 #define SDATA_SECTION_ASM_OP "\t.sdata"
128 #define SBSS_SECTION_ASM_OP "\t.sbss"
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