101 lines
3.4 KiB
C++
101 lines
3.4 KiB
C++
/* Definitions for Intel 386 running DragonFly with ELF format
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Copyright (C) 2014-2021 Free Software Foundation, Inc.
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Contributed by John Marino <gnugcc@marino.st>
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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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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/* Override the default comment-starter of "/". */
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#undef ASM_COMMENT_START
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#define ASM_COMMENT_START "#"
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#undef ASM_APP_ON
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#define ASM_APP_ON "#APP\n"
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#undef ASM_APP_OFF
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#define ASM_APP_OFF "#NO_APP\n"
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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] : svr4_dbx_register_map[n])
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#undef NO_PROFILE_COUNTERS
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#define NO_PROFILE_COUNTERS 1
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/* Tell final.c that we don't need a label passed to mcount. */
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#undef MCOUNT_NAME
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#define MCOUNT_NAME ".mcount"
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/* Make gcc agree with <machine/ansi.h>. */
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#undef SIZE_TYPE
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#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE (TARGET_64BIT ? 32 : BITS_PER_WORD)
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#undef SUBTARGET_EXTRA_SPECS /* i386.h bogusly defines it. */
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#define SUBTARGET_EXTRA_SPECS \
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{ "dfbsd_dynamic_linker", DFBSD_DYNAMIC_LINKER }
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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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#undef ASM_OUTPUT_MAX_SKIP_ALIGN
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#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP) \
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if ((LOG) != 0) { \
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if ((MAX_SKIP) == 0 || (MAX_SKIP) >= (1 << (LOG)) - 1) \
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fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
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else \
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fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
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}
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#endif
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/* Don't default to pcc-struct-return, we want to retain compatibility with
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older gcc versions AND pcc-struct-return is nonreentrant.
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(even though the SVR4 ABI for the i386 says that records and unions are
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returned in memory). */
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#undef DEFAULT_PCC_STRUCT_RETURN
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#define DEFAULT_PCC_STRUCT_RETURN 0
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/* DragonFly sets the rounding precision of the FPU to 53 bits. Let the
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compiler get the contents of <float.h> and std::numeric_limits correct. */
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#undef TARGET_96_ROUND_53_LONG_DOUBLE
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#define TARGET_96_ROUND_53_LONG_DOUBLE (!TARGET_64BIT)
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/* Static stack checking is supported by means of probes. */
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#define STACK_CHECK_STATIC_BUILTIN 1
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/* Support for i386 was removed from DragonFly in 2007 */
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#define SUBTARGET32_DEFAULT_CPU "i486"
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#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
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