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Commit | Line | Data |
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c65ebc55 JW |
1 | /* Override definitions in elfos.h/svr4.h to be correct for IA64. */ |
2 | ||
3 | /* We want DWARF2 as specified by the IA64 ABI. */ | |
4 | #undef PREFERRED_DEBUGGING_TYPE | |
5 | #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
6 | ||
89e6abff RH |
7 | /* Stabs does not work properly for 64-bit targets. */ |
8 | #undef DBX_DEBUGGING_INFO | |
9 | ||
c65ebc55 JW |
10 | /* Various pseudo-ops for which the Intel assembler uses non-standard |
11 | definitions. */ | |
12 | ||
c65ebc55 | 13 | #undef STRING_ASM_OP |
de323aa1 | 14 | #define STRING_ASM_OP "\tstringz\t" |
c65ebc55 JW |
15 | |
16 | #undef SKIP_ASM_OP | |
de323aa1 | 17 | #define SKIP_ASM_OP "\t.skip\t" |
c65ebc55 JW |
18 | |
19 | #undef COMMON_ASM_OP | |
de323aa1 | 20 | #define COMMON_ASM_OP "\t.common\t" |
c65ebc55 JW |
21 | |
22 | #undef ASCII_DATA_ASM_OP | |
de323aa1 | 23 | #define ASCII_DATA_ASM_OP "\tstring\t" |
c65ebc55 | 24 | |
93215a1b AS |
25 | /* ia64-specific options for gas |
26 | ??? ia64 gas doesn't accept standard svr4 assembler options? */ | |
27 | #undef ASM_SPEC | |
28 | #define ASM_SPEC "-x %{mconstant-gp} %{mauto-pic} %(asm_extra)" | |
29 | ||
c65ebc55 JW |
30 | /* ??? Unfortunately, .lcomm doesn't work, because it puts things in either |
31 | .bss or .sbss, and we can't control the decision of which is used. When | |
32 | I use .lcomm, I get a cryptic "Section group has no member" error from | |
33 | the Intel simulator. So we must explicitly put variables in .bss | |
34 | instead. This matters only if we care about the Intel assembler. */ | |
35 | ||
5eb99654 KG |
36 | /* This is asm_output_aligned_bss from varasm.c without the |
37 | (*targetm.asm_out.globalize_label) call at the beginning. */ | |
c65ebc55 JW |
38 | |
39 | /* This is for final.c, because it is used by ASM_DECLARE_OBJECT_NAME. */ | |
40 | extern int size_directive_output; | |
41 | ||
42 | #undef ASM_OUTPUT_ALIGNED_LOCAL | |
43 | #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \ | |
44 | do { \ | |
7b6e506e | 45 | if ((DECL) && sdata_symbolic_operand (XEXP (DECL_RTL (DECL), 0), Pmode)) \ |
c65ebc55 JW |
46 | sbss_section (); \ |
47 | else \ | |
48 | bss_section (); \ | |
49 | ASM_OUTPUT_ALIGN (FILE, floor_log2 ((ALIGN) / BITS_PER_UNIT)); \ | |
50 | ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL); \ | |
51 | ASM_OUTPUT_SKIP (FILE, SIZE ? SIZE : 1); \ | |
52 | } while (0) | |
53 | ||
c65ebc55 JW |
54 | /* The # tells the Intel assembler that this is not a register name. |
55 | However, we can't emit the # in a label definition, so we set a variable | |
13daf3c1 NC |
56 | in ASM_OUTPUT_LABEL to control whether we want the postfix here or not. |
57 | We append the # to the label name, but since NAME can be an expression | |
58 | we have to scan it for a non-label character and insert the # there. */ | |
c65ebc55 JW |
59 | |
60 | #undef ASM_OUTPUT_LABELREF | |
c45632b7 RH |
61 | #define ASM_OUTPUT_LABELREF(STREAM, NAME) \ |
62 | do { \ | |
63 | const char *name_ = NAME; \ | |
c45632b7 RH |
64 | if (*name_ == '*') \ |
65 | name_++; \ | |
66 | else \ | |
67 | fputs (user_label_prefix, STREAM); \ | |
68 | fputs (name_, STREAM); \ | |
45d29407 RH |
69 | if (!ia64_asm_output_label) \ |
70 | fputc ('#', STREAM); \ | |
c45632b7 | 71 | } while (0) |
c65ebc55 JW |
72 | |
73 | /* Intel assembler requires both flags and type if declaring a non-predefined | |
74 | section. */ | |
75 | #undef INIT_SECTION_ASM_OP | |
de323aa1 | 76 | #define INIT_SECTION_ASM_OP "\t.section\t.init,\"ax\",\"progbits\"" |
c65ebc55 | 77 | #undef FINI_SECTION_ASM_OP |
de323aa1 | 78 | #define FINI_SECTION_ASM_OP "\t.section\t.fini,\"ax\",\"progbits\"" |
c65ebc55 JW |
79 | |
80 | /* svr4.h undefines this, so we need to define it here. */ | |
97e242b0 RH |
81 | #define DBX_REGISTER_NUMBER(REGNO) \ |
82 | ia64_dbx_register_number(REGNO) | |
c65ebc55 JW |
83 | |
84 | /* Things that svr4.h defines to the wrong type, because it assumes 32 bit | |
85 | ints and 32 bit longs. */ | |
86 | ||
87 | #undef SIZE_TYPE | |
88 | #define SIZE_TYPE "long unsigned int" | |
89 | ||
90 | #undef PTRDIFF_TYPE | |
91 | #define PTRDIFF_TYPE "long int" | |
92 | ||
93 | #undef WCHAR_TYPE | |
94 | #define WCHAR_TYPE "int" | |
95 | ||
96 | #undef WCHAR_TYPE_SIZE | |
97 | #define WCHAR_TYPE_SIZE 32 | |
98 | ||
c65ebc55 JW |
99 | /* We redefine this to use the ia64 .proc pseudo-op. */ |
100 | ||
101 | #undef ASM_DECLARE_FUNCTION_NAME | |
102 | #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ | |
103 | do { \ | |
104 | fputs ("\t.proc ", FILE); \ | |
105 | assemble_name (FILE, NAME); \ | |
106 | fputc ('\n', FILE); \ | |
107 | ASM_OUTPUT_LABEL (FILE, NAME); \ | |
108 | } while (0) | |
109 | ||
110 | /* We redefine this to use the ia64 .endp pseudo-op. */ | |
111 | ||
112 | #undef ASM_DECLARE_FUNCTION_SIZE | |
113 | #define ASM_DECLARE_FUNCTION_SIZE(FILE, NAME, DECL) \ | |
114 | do { \ | |
115 | fputs ("\t.endp ", FILE); \ | |
116 | assemble_name (FILE, NAME); \ | |
117 | fputc ('\n', FILE); \ | |
118 | } while (0) | |
119 | ||
b64a1b53 RH |
120 | /* Override default elf definition. */ |
121 | #undef TARGET_ASM_SELECT_RTX_SECTION | |
122 | #define TARGET_ASM_SELECT_RTX_SECTION ia64_select_rtx_section | |
ac9cd70f | 123 | |
c65ebc55 | 124 | #undef EXTRA_SECTIONS |
d48bc59a | 125 | #define EXTRA_SECTIONS in_sdata, in_sbss |
c65ebc55 JW |
126 | |
127 | #undef EXTRA_SECTION_FUNCTIONS | |
128 | #define EXTRA_SECTION_FUNCTIONS \ | |
c65ebc55 JW |
129 | SDATA_SECTION_FUNCTION \ |
130 | SBSS_SECTION_FUNCTION | |
131 | ||
de323aa1 | 132 | #define SDATA_SECTION_ASM_OP "\t.sdata" |
c65ebc55 JW |
133 | |
134 | #define SDATA_SECTION_FUNCTION \ | |
135 | void \ | |
63482449 | 136 | sdata_section (void) \ |
c65ebc55 JW |
137 | { \ |
138 | if (in_section != in_sdata) \ | |
139 | { \ | |
140 | fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \ | |
141 | in_section = in_sdata; \ | |
142 | } \ | |
143 | } | |
144 | ||
de323aa1 | 145 | #define SBSS_SECTION_ASM_OP "\t.sbss" |
c65ebc55 JW |
146 | |
147 | #define SBSS_SECTION_FUNCTION \ | |
148 | void \ | |
63482449 | 149 | sbss_section (void) \ |
c65ebc55 JW |
150 | { \ |
151 | if (in_section != in_sbss) \ | |
152 | { \ | |
153 | fprintf (asm_out_file, "%s\n", SBSS_SECTION_ASM_OP); \ | |
154 | in_section = in_sbss; \ | |
155 | } \ | |
156 | } |