| 1 |
38 |
julius |
/* 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
|
