Mercurial > hg > CbC > CbC_gcc
comparison gcc/config/i386/lynx.h @ 0:a06113de4d67
first commit
| author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 17 Jul 2009 14:47:48 +0900 |
| parents | |
| children | f6334be47118 |
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| -1:000000000000 | 0:a06113de4d67 |
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| 1 /* Definitions for LynxOS on i386. | |
| 2 Copyright (C) 1993, 1995, 1996, 2002, 2004, 2005, 2007 | |
| 3 Free Software Foundation, Inc. | |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify | |
| 8 it under the terms of the GNU General Public License as published by | |
| 9 the Free Software Foundation; either version 3, or (at your option) | |
| 10 any later version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, | |
| 13 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 GNU General Public License for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with GCC; see the file COPYING3. If not see | |
| 19 <http://www.gnu.org/licenses/>. */ | |
| 20 | |
| 21 #define TARGET_VERSION fputs (" (i386/LynxOS)", stderr); | |
| 22 | |
| 23 #define TARGET_OS_CPP_BUILTINS() \ | |
| 24 do \ | |
| 25 { \ | |
| 26 builtin_define ("__LITTLE_ENDIAN__"); \ | |
| 27 builtin_define ("__x86__"); \ | |
| 28 } \ | |
| 29 while (0) | |
| 30 | |
| 31 /* The svr4 ABI for the i386 says that records and unions are returned | |
| 32 in memory. */ | |
| 33 | |
| 34 #define DEFAULT_PCC_STRUCT_RETURN 1 | |
| 35 | |
| 36 /* BSS_SECTION_ASM_OP gets defined i386/unix.h. */ | |
| 37 | |
| 38 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 39 asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) | |
| 40 | |
| 41 /* LynxOS's GDB counts the floating point registers from 16. */ | |
| 42 | |
| 43 #undef DBX_REGISTER_NUMBER | |
| 44 #define DBX_REGISTER_NUMBER(n) \ | |
| 45 (TARGET_64BIT ? dbx64_register_map[n] \ | |
| 46 : (n) == 0 ? 0 \ | |
| 47 : (n) == 1 ? 2 \ | |
| 48 : (n) == 2 ? 1 \ | |
| 49 : (n) == 3 ? 3 \ | |
| 50 : (n) == 4 ? 6 \ | |
| 51 : (n) == 5 ? 7 \ | |
| 52 : (n) == 6 ? 5 \ | |
| 53 : (n) == 7 ? 4 \ | |
| 54 : ((n) >= FIRST_STACK_REG && (n) <= LAST_STACK_REG) ? (n) + 8 \ | |
| 55 : (-1)) | |
| 56 | |
| 57 /* A C statement to output to the stdio stream FILE an assembler | |
| 58 command to advance the location counter to a multiple of 1<<LOG | |
| 59 bytes if it is within MAX_SKIP bytes. | |
| 60 | |
| 61 This is used to align code labels according to Intel recommendations. */ | |
| 62 | |
| 63 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN | |
| 64 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \ | |
| 65 do { \ | |
| 66 if ((LOG) != 0) { \ | |
| 67 if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ | |
| 68 else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ | |
| 69 } \ | |
| 70 } while (0) | |
| 71 #endif | |
| 72 | |
| 73 /* Undefine SUBTARGET_EXTRA_SPECS it is empty anyway. We define it in | |
| 74 config/lynx.h. */ | |
| 75 | |
| 76 #undef SUBTARGET_EXTRA_SPECS | |
| 77 | |
| 78 /* Undefine the definition from att.h to enable our default. */ | |
| 79 | |
| 80 #undef ASM_OUTPUT_ALIGN | |
| 81 | |
| 82 /* Undefine the definition from elfos.h to enable our default. */ | |
| 83 | |
| 84 #undef PREFERRED_DEBUGGING_TYPE | |
| 85 | |
| 86 /* The file i386.c defines TARGET_HAVE_TLS unconditionally if | |
| 87 HAVE_AS_TLS is defined. HAVE_AS_TLS is defined as gas support for | |
| 88 TLS is detected by configure. We undefine it here. */ | |
| 89 | |
| 90 #undef HAVE_AS_TLS |