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jeremybenn |
/* Definitions for LynxOS on i386.
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Copyright (C) 1993, 1995, 1996, 2002, 2004, 2005, 2007, 2010, 2011
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Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#define TARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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builtin_define ("__LITTLE_ENDIAN__"); \
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builtin_define ("__x86__"); \
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} \
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while (0)
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/* The svr4 ABI for the i386 says that records and unions are returned
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in memory. */
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#define DEFAULT_PCC_STRUCT_RETURN 1
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/* BSS_SECTION_ASM_OP gets defined i386/unix.h. */
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#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
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asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
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/* LynxOS's GDB counts the floating point registers from 16. */
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#undef DBX_REGISTER_NUMBER
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#define DBX_REGISTER_NUMBER(n) \
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(TARGET_64BIT ? dbx64_register_map[n] \
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: (n) == 0 ? 0 \
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: (n) == 1 ? 2 \
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: (n) == 2 ? 1 \
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: (n) == 3 ? 3 \
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: (n) == 4 ? 6 \
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: (n) == 5 ? 7 \
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: (n) == 6 ? 5 \
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: (n) == 7 ? 4 \
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: ((n) >= FIRST_STACK_REG && (n) <= LAST_STACK_REG) ? (int) (n) + 8 \
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: (-1))
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/* A C statement to output to the stdio stream FILE an assembler
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command to advance the location counter to a multiple of 1<<LOG
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bytes if it is within MAX_SKIP bytes.
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This is used to align code labels according to Intel recommendations. */
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#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
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#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
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do { \
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if ((LOG) != 0) { \
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if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
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else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
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} \
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} while (0)
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#endif
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/* Undefine SUBTARGET_EXTRA_SPECS it is empty anyway. We define it in
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config/lynx.h. */
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#undef SUBTARGET_EXTRA_SPECS
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/* Undefine the definition from att.h to enable our default. */
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#undef ASM_OUTPUT_ALIGN
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/* Undefine the definition from elfos.h to enable our default. */
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#undef PREFERRED_DEBUGGING_TYPE
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/* The file i386.c defines TARGET_HAVE_TLS unconditionally if
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HAVE_AS_TLS is defined. HAVE_AS_TLS is defined as gas support for
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TLS is detected by configure. We undefine it here. */
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#undef HAVE_AS_TLS
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