Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/i386/sysv4.h @ 55:77e2b8dfacca gcc-4.4.5
update it from 4.4.3 to 4.5.0
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 12 Feb 2010 23:39:51 +0900 |
| parents | a06113de4d67 |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 /* Target definitions for GCC for Intel 80386 running System V.4 |
| 2 Copyright (C) 1991, 2001, 2002, 2007, 2008 Free Software Foundation, Inc. | |
| 3 | |
| 4 Written by Ron Guilmette (rfg@netcom.com). | |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify | |
| 9 it under the terms of the GNU General Public License as published by | |
| 10 the Free Software Foundation; either version 3, or (at your option) | |
| 11 any later version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, | |
| 14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 GNU General Public License for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with GCC; see the file COPYING3. If not see | |
| 20 <http://www.gnu.org/licenses/>. */ | |
| 21 | |
| 22 | |
| 23 #define TARGET_VERSION fprintf (stderr, " (i386 System V Release 4)"); | |
| 24 | |
| 25 /* The svr4 ABI for the i386 says that records and unions are returned | |
| 26 in memory. */ | |
| 27 | |
| 28 #define SUBTARGET_RETURN_IN_MEMORY(TYPE, FNTYPE) \ | |
| 29 (TYPE_MODE (TYPE) == BLKmode \ | |
| 30 || (VECTOR_MODE_P (TYPE_MODE (TYPE)) && int_size_in_bytes (TYPE) == 8)); | |
| 31 | |
| 32 /* Output at beginning of assembler file. */ | |
| 33 /* The .file command should always begin the output. */ | |
| 34 | |
| 35 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE true | |
| 36 #undef X86_FILE_START_VERSION_DIRECTIVE | |
| 37 #define X86_FILE_START_VERSION_DIRECTIVE true | |
| 38 | |
| 39 #undef DBX_REGISTER_NUMBER | |
| 40 #define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n] | |
| 41 | |
| 42 /* The routine used to output sequences of byte values. We use a special | |
| 43 version of this for most svr4 targets because doing so makes the | |
| 44 generated assembly code more compact (and thus faster to assemble) | |
| 45 as well as more readable. Note that if we find subparts of the | |
| 46 character sequence which end with NUL (and which are shorter than | |
| 47 STRING_LIMIT) we output those using ASM_OUTPUT_LIMITED_STRING. */ | |
| 48 | |
| 49 #undef ASM_OUTPUT_ASCII | |
| 50 #define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \ | |
| 51 do \ | |
| 52 { \ | |
| 53 const unsigned char *_ascii_bytes = \ | |
| 54 (const unsigned char *) (STR); \ | |
| 55 const unsigned char *limit = _ascii_bytes + (LENGTH); \ | |
| 56 unsigned bytes_in_chunk = 0; \ | |
| 57 for (; _ascii_bytes < limit; _ascii_bytes++) \ | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
58 { \ |
| 0 | 59 const unsigned char *p; \ |
| 60 if (bytes_in_chunk >= 64) \ | |
| 61 { \ | |
| 62 fputc ('\n', (FILE)); \ | |
| 63 bytes_in_chunk = 0; \ | |
| 64 } \ | |
| 65 for (p = _ascii_bytes; p < limit && *p != '\0'; p++) \ | |
| 66 continue; \ | |
| 67 if (p < limit && (p - _ascii_bytes) <= (long) STRING_LIMIT) \ | |
| 68 { \ | |
| 69 if (bytes_in_chunk > 0) \ | |
| 70 { \ | |
| 71 fputc ('\n', (FILE)); \ | |
| 72 bytes_in_chunk = 0; \ | |
| 73 } \ | |
| 74 ASM_OUTPUT_LIMITED_STRING ((FILE), _ascii_bytes); \ | |
| 75 _ascii_bytes = p; \ | |
| 76 } \ | |
| 77 else \ | |
| 78 { \ | |
| 79 if (bytes_in_chunk == 0) \ | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
80 fputs (ASM_BYTE, (FILE)); \ |
| 0 | 81 else \ |
| 82 fputc (',', (FILE)); \ | |
| 83 fprintf ((FILE), "0x%02x", *_ascii_bytes); \ | |
| 84 bytes_in_chunk += 5; \ | |
| 85 } \ | |
| 86 } \ | |
| 87 if (bytes_in_chunk > 0) \ | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
88 fputc ('\n', (FILE)); \ |
| 0 | 89 } \ |
| 90 while (0) | |
| 91 | |
| 92 /* A C statement (sans semicolon) to output to the stdio stream | |
| 93 FILE the assembler definition of uninitialized global DECL named | |
| 94 NAME whose size is SIZE bytes and alignment is ALIGN bytes. | |
| 95 Try to use asm_output_aligned_bss to implement this macro. */ | |
| 96 | |
| 97 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 98 asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) | |
| 99 | |
| 100 /* Handle special EH pointer encodings. Absolute, pc-relative, and | |
| 101 indirect are handled automatically. */ | |
| 102 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \ | |
| 103 do { \ | |
| 104 if ((SIZE) == 4 && ((ENCODING) & 0x70) == DW_EH_PE_datarel) \ | |
| 105 { \ | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
106 fputs (ASM_LONG, (FILE)); \ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
107 assemble_name (FILE, XSTR (ADDR, 0)); \ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
108 fputs (((ENCODING) & DW_EH_PE_indirect ? "@GOT" : "@GOTOFF"), (FILE)); \ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
109 goto DONE; \ |
| 0 | 110 } \ |
| 111 } while (0) | |
| 112 | |
| 113 /* Used by crtstuff.c to initialize the base of data-relative relocations. | |
| 114 These are GOT relative on x86, so return the pic register. */ | |
| 115 #ifdef __PIC__ | |
| 116 #define CRT_GET_RFIB_DATA(BASE) \ | |
| 117 { \ | |
| 118 register void *ebx_ __asm__("ebx"); \ | |
| 119 BASE = ebx_; \ | |
| 120 } | |
| 121 #else | |
| 122 #define CRT_GET_RFIB_DATA(BASE) \ | |
| 123 __asm__ ("call\t.LPR%=\n" \ | |
| 124 ".LPR%=:\n\t" \ | |
| 125 "pop{l}\t%0\n\t" \ | |
| 126 /* Due to a GAS bug, this cannot use EAX. That encodes \ | |
| 127 smaller than the traditional EBX, which results in the \ | |
| 128 offset being off by one. */ \ | |
| 129 "add{l}\t{$_GLOBAL_OFFSET_TABLE_+[.-.LPR%=],%0" \ | |
| 130 "|%0,_GLOBAL_OFFSET_TABLE_+(.-.LPR%=)}" \ | |
| 131 : "=d"(BASE)) | |
| 132 #endif |