/* Definitions for Intel 386 running FreeBSD with ELF format
- Copyright (C) 1996, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1996-2014 Free Software Foundation, Inc.
Contributed by Eric Youngdale.
Modified for stabs-in-ELF by H.J. Lu.
Adapted from GNU/Linux version by John Polstra.
Continued development by David O'Brien <obrien@freebsd.org>
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
-#undef TARGET_VERSION
-#define TARGET_VERSION fprintf (stderr, " (i386 FreeBSD/ELF)");
/* Override the default comment-starter of "/". */
-#undef ASM_COMMENT_START
+#undef ASM_COMMENT_START
#define ASM_COMMENT_START "#"
-#undef ASM_APP_ON
+#undef ASM_APP_ON
#define ASM_APP_ON "#APP\n"
-#undef ASM_APP_OFF
+#undef ASM_APP_OFF
#define ASM_APP_OFF "#NO_APP\n"
-#undef SET_ASM_OP
-#define SET_ASM_OP "\t.set\t"
-
-/* This is how to output an element of a case-vector that is relative.
- This is only used for PIC code. See comments by the `casesi' insn in
- i386.md for an explanation of the expression this outputs. */
-#undef ASM_OUTPUT_ADDR_DIFF_ELT
-#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
- fprintf ((FILE), "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE)
-
-/* Indicate that jump tables go in the text section. This is
- necessary when compiling PIC code. */
-#define JUMP_TABLES_IN_TEXT_SECTION (flag_pic)
-
-#undef DBX_REGISTER_NUMBER
-#define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n]
+#undef DBX_REGISTER_NUMBER
+#define DBX_REGISTER_NUMBER(n) \
+ (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
#undef NO_PROFILE_COUNTERS
-#define NO_PROFILE_COUNTERS
+#define NO_PROFILE_COUNTERS 1
/* Tell final.c that we don't need a label passed to mcount. */
-#undef FUNCTION_PROFILER
-#define FUNCTION_PROFILER(FILE, LABELNO) \
-{ \
- if (flag_pic) \
- fprintf ((FILE), "\tcall *.mcount@GOT(%%ebx)\n"); \
- else \
- fprintf ((FILE), "\tcall .mcount\n"); \
-}
+#undef MCOUNT_NAME
+#define MCOUNT_NAME ".mcount"
/* Make gcc agree with <machine/ansi.h>. */
-#undef SIZE_TYPE
-#define SIZE_TYPE "unsigned int"
+#undef SIZE_TYPE
+#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
-#undef PTRDIFF_TYPE
-#define PTRDIFF_TYPE "int"
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
-#undef WCHAR_TYPE_SIZE
-#define WCHAR_TYPE_SIZE BITS_PER_WORD
-
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-Dunix -D__ELF__ -D__FreeBSD__\
- -Asystem(unix) -Asystem(bsd) -Asystem(FreeBSD)"
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE (TARGET_64BIT ? 32 : BITS_PER_WORD)
+#undef SUBTARGET_EXTRA_SPECS /* i386.h bogusly defines it. */
+#define SUBTARGET_EXTRA_SPECS \
+ { "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }
+
/* Provide a STARTFILE_SPEC appropriate for FreeBSD. Here we add
the magical crtbegin.o file (see crtstuff.c) which provides part
of the support for getting C++ file-scope static object constructed
- before entering `main'. */
+ before entering `main'. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
/* Provide a LINK_SPEC appropriate for FreeBSD. Here we provide support
for the special GCC options -static and -shared, which allow us to
link things in one of these three modes by applying the appropriate
- combinations of options at link-time. We like to support here for
- as many of the other GNU linker options as possible. But I don't
- have the time to search for those flags. I am sure how to add
- support for -soname shared_object_name. H.J.
-
- I took out %{v:%{!V:-V}}. It is too much :-(. They can use
- -Wl,-V.
+ combinations of options at link-time.
When the -shared link option is used a final link is not being
done. */
#undef LINK_SPEC
-#define LINK_SPEC "-m elf_i386 \
- %{Wl,*:%*} \
+#define LINK_SPEC "\
+ %{p:%nconsider using '-pg' instead of '-p' with gprof(1)} \
%{v:-V} \
%{assert*} %{R*} %{rpath*} %{defsym*} \
%{shared:-Bshareable %{h*} %{soname*}} \
%{!shared: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /usr/libexec/ld-elf.so.1}} \
+ -dynamic-linker %(fbsd_dynamic_linker) } \
%{static:-Bstatic}} \
%{symbolic:-Bsymbolic}"
This is used to align code labels according to Intel recommendations. */
#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
+#undef ASM_OUTPUT_MAX_SKIP_ALIGN
#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP) \
if ((LOG) != 0) { \
if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
}
#endif
+
+/* Don't default to pcc-struct-return, we want to retain compatibility with
+ older gcc versions AND pcc-struct-return is nonreentrant.
+ (even though the SVR4 ABI for the i386 says that records and unions are
+ returned in memory). */
+
+#undef DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 0
+
+/* FreeBSD sets the rounding precision of the FPU to 53 bits. Let the
+ compiler get the contents of <float.h> and std::numeric_limits correct. */
+#undef TARGET_96_ROUND_53_LONG_DOUBLE
+#define TARGET_96_ROUND_53_LONG_DOUBLE (!TARGET_64BIT)
+
+/* Static stack checking is supported by means of probes. */
+#define STACK_CHECK_STATIC_BUILTIN 1
+
+/* Support for i386 has been removed from FreeBSD 6.0 onward. */
+#if FBSD_MAJOR >= 6
+#define SUBTARGET32_DEFAULT_CPU "i486"
+#endif
+
+#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+
git://gcc.gnu.org / gcc.git / blobdiff