diff options
Diffstat (limited to 'contrib/gcc/config/i386/freebsd.h.fixed')
| -rw-r--r-- | contrib/gcc/config/i386/freebsd.h.fixed | 745 |
1 files changed, 155 insertions, 590 deletions
diff --git a/contrib/gcc/config/i386/freebsd.h.fixed b/contrib/gcc/config/i386/freebsd.h.fixed index d4a0358..e97d4ca 100644 --- a/contrib/gcc/config/i386/freebsd.h.fixed +++ b/contrib/gcc/config/i386/freebsd.h.fixed @@ -1,9 +1,8 @@ -/* Definitions for Intel 386 running FreeBSD with either a.out or ELF format - Copyright (C) 1996-2000 Free Software Foundation, Inc. +/* Definitions for Intel 386 running FreeBSD with ELF format + Copyright (C) 1996 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. - Added support for generating "old a.out gas" on the fly by Peter Wemm. Continued development by David O'Brien <obrien@freebsd.org> This file is part of GNU CC. @@ -23,548 +22,50 @@ 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. */ -/* $FreeBSD$ */ +#undef TARGET_VERSION +#define TARGET_VERSION fprintf (stderr, " (i386 FreeBSD/ELF)"); -#undef CPP_PREDEFINES -#define CPP_PREDEFINES \ - "-Di386 -Acpu(i386) -Amachine(i386)" \ - FBSD_CPP_PREDEFINES +/* The svr4 ABI for the i386 says that records and unions are returned + in memory. */ +/* On FreeBSD, we do not. */ +#undef DEFAULT_PCC_STRUCT_RETURN +#define DEFAULT_PCC_STRUCT_RETURN 0 -#undef CC1_SPEC -#define CC1_SPEC "\ - %{gline:%{!g:%{!g0:%{!g1:%{!g2: -g1}}}}} \ - %{maout: %{!mno-underscores: %{!munderscores: -munderscores }}}" +/* This gets defined in tm.h->linux.h->svr4.h, and keeps us from using + libraries compiled with the native cc, so undef it. */ +#undef NO_DOLLAR_IN_LABEL -#undef ASM_SPEC -#define ASM_SPEC "%{v*: -v} %{maout: %{fpic:-k} %{fPIC:-k}}" +/* Use more efficient ``thunks'' to implement C++ vtables. */ +#undef DEFAULT_VTABLE_THUNKS +#define DEFAULT_VTABLE_THUNKS 1 -#undef ASM_FINAL_SPEC -#define ASM_FINAL_SPEC "%|" +/* Override the default comment-starter of "/". */ +#undef ASM_COMMENT_START +#define ASM_COMMENT_START "#" -/* 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. +#undef ASM_APP_ON +#define ASM_APP_ON "#APP\n" - When the -shared link option is used a final link is not being - done. */ +#undef ASM_APP_OFF +#define ASM_APP_OFF "#NO_APP\n" -#undef LINK_SPEC -#define LINK_SPEC "\ - %{p:%e`-p' not supported; use `-pg' and gprof(1)} \ - %{maout: %{shared:-Bshareable} \ - %{!shared:%{!nostdlib:%{!r:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} \ - %{pg:-Bstatic} %{Z}} \ - %{assert*} %{R*}} \ - %{!maout: \ - -m elf_i386 \ - %{Wl,*:%*} \ - %{assert*} %{R*} %{rpath*} %{defsym*} \ - %{shared:-Bshareable %{h*} %{soname*}} \ - %{symbolic:-Bsymbolic} \ - %{!shared: \ - %{!static: \ - %{rdynamic: -export-dynamic} \ - %{!dynamic-linker: -dynamic-linker /usr/libexec/ld-elf.so.1}} \ - %{static:-Bstatic}}}" - -#undef STARTFILE_SPEC -#define STARTFILE_SPEC "\ - %{maout: %{shared:c++rt0.o%s} \ - %{!shared: \ - %{pg:gcrt0.o%s}%{!pg: \ - %{static:scrt0.o%s} \ - %{!static:crt0.o%s}}}} \ - %{!maout: \ - %{!shared: \ - %{pg:gcrt1.o%s} \ - %{!pg: \ - %{p:gcrt1.o%s} \ - %{!p:crt1.o%s}}} \ - crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}" - -/* Provide an ENDFILE_SPEC appropriate for FreeBSD/i386. Here we tack on our - own magical crtend.o file (compare w/crtstuff.c) which provides part of the - support for getting C++ file-scope static object constructed before - entering `main', followed by the normal "finalizer" file, `crtn.o'. */ - -#undef ENDFILE_SPEC -#define ENDFILE_SPEC "\ - %{!maout: \ - %{!shared:crtend.o%s} \ - %{shared:crtendS.o%s} crtn.o%s}" - - -/************************[ Target stuff ]***********************************/ - -/* Define the actual types of some ANSI-mandated types. - Needs to agree with <machine/ansi.h>. GCC defaults come from c-decl.c, - c-common.c, and config/<arch>/<arch>.h. */ - -#undef SIZE_TYPE -#define SIZE_TYPE "unsigned int" - -#undef PTRDIFF_TYPE -#define PTRDIFF_TYPE "int" - -/* This is the pseudo-op used to generate a 32-bit word of data with a - specific value in some section. */ - -#undef INT_ASM_OP -#define INT_ASM_OP ".long" - -/* Biggest alignment supported by the object file format of this - machine. Use this macro to limit the alignment which can be - specified using the `__attribute__ ((aligned (N)))' construct. If - not defined, the default value is `BIGGEST_ALIGNMENT'. */ - -#define MAX_OFILE_ALIGNMENT (32768*8) - -#undef TARGET_VERSION -#define TARGET_VERSION fprintf (stderr, " (i386 FreeBSD/ELF)"); - -#define MASK_PROFILER_EPILOGUE 010000000000 -#define MASK_AOUT 004000000000 /* a.out not elf */ -#define MASK_UNDERSCORES 002000000000 /* use leading _ */ - -#define TARGET_PROFILER_EPILOGUE (target_flags & MASK_PROFILER_EPILOGUE) -#define TARGET_AOUT (target_flags & MASK_AOUT) -#define TARGET_ELF ((target_flags & MASK_AOUT) == 0) -#define TARGET_UNDERSCORES ((target_flags & MASK_UNDERSCORES) != 0) - -#undef SUBTARGET_SWITCHES -#define SUBTARGET_SWITCHES \ - { "profiler-epilogue", MASK_PROFILER_EPILOGUE}, \ - { "no-profiler-epilogue", -MASK_PROFILER_EPILOGUE}, \ - { "aout", MASK_AOUT}, \ - { "no-aout", -MASK_AOUT}, \ - { "underscores", MASK_UNDERSCORES}, \ - { "no-underscores", -MASK_UNDERSCORES}, - -/* This goes away when the math emulator is fixed. */ -#undef TARGET_DEFAULT -#define TARGET_DEFAULT \ - (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387) - -/* Prefix for internally generated assembler labels. If we aren't using - underscores, we are using prefix `.'s to identify labels that should - be ignored, as in `i386/gas.h' --karl@cs.umb.edu */ -#undef LPREFIX -#define LPREFIX ((TARGET_UNDERSCORES) ? "L" : ".L") - -/* The a.out tools do not support "linkonce" sections. */ -#undef SUPPORTS_ONE_ONLY -#define SUPPORTS_ONE_ONLY TARGET_ELF - -/* Enable alias attribute support. */ -#undef SET_ASM_OP -#define SET_ASM_OP ".set" - -/* The a.out tools do not support "Lscope" .stabs symbols. */ -#undef NO_DBX_FUNCTION_END -#define NO_DBX_FUNCTION_END TARGET_AOUT - -/* In ELF, the function stabs come first, before the relative offsets. */ -#undef DBX_FUNCTION_FIRST -#define DBX_CHECK_FUNCTION_FIRST TARGET_ELF - -/* supply our own hook for calling __main() from main() */ -#undef INVOKE__main -#define INVOKE__main -#undef GEN_CALL__MAIN -#define GEN_CALL__MAIN \ - do { \ - if (!(TARGET_ELF)) \ - emit_library_call (gen_rtx (SYMBOL_REF, Pmode, NAME__MAIN), 0, \ - VOIDmode, 0); \ - } while (0) - -/* Indicate that jump tables go in the text section. This is - necessary when compiling PIC code. */ -#undef JUMP_TABLES_IN_TEXT_SECTION -#define JUMP_TABLES_IN_TEXT_SECTION (flag_pic) - -/* override the exception table positioning */ -#undef EXCEPTION_SECTION -#define EXCEPTION_SECTION() \ - do { \ - if (TARGET_ELF) \ - { \ - named_section (NULL_TREE, ".gcc_except_table", 0); \ - } \ - else \ - { \ - if (flag_pic) \ - data_section (); \ - else \ - readonly_data_section (); \ - } \ - } while (0); - -/* Tell final.c that we don't need a label passed to mcount. */ -#undef NO_PROFILE_DATA -#define NO_PROFILE_DATA - -/* Output assembler code to FILE to begin profiling of the current function. - LABELNO is an optional label. */ - -#undef FUNCTION_PROFILER -#define FUNCTION_PROFILER(FILE, LABELNO) \ - do { \ - char *_name = TARGET_AOUT ? "mcount" : ".mcount"; \ - if (flag_pic) \ - fprintf ((FILE), "\tcall *%s@GOT(%%ebx)\n", _name); \ - else \ - fprintf ((FILE), "\tcall %s\n", _name); \ - } while (0) - -/* Output assembler code to FILE to end profiling of the current function. */ - -#undef FUNCTION_PROFILER_EPILOGUE -#define FUNCTION_PROFILER_EPILOGUE(FILE, DO_RTL) \ - do { \ - if (TARGET_PROFILER_EPILOGUE) \ - { \ - if (DO_RTL) \ - { \ - /* ".mexitcount" is specially handled in \ - ASM_HACK_SYMBOLREF () so that we don't need to handle \ - flag_pic or TARGET_AOUT here. */ \ - rtx xop; \ - xop = gen_rtx_MEM (FUNCTION_MODE, \ - gen_rtx_SYMBOL_REF (Pmode, ".mexitcount")); \ - emit_call_insn (gen_rtx (CALL, VOIDmode, xop, const0_rtx)); \ - } \ - else \ - { \ - /* XXX this !DO_RTL case is broken but not actually used. */ \ - char *_name = TARGET_AOUT ? "mcount" : ".mcount"; \ - if (flag_pic) \ - fprintf (FILE, "\tcall *%s@GOT(%%ebx)\n", _name); \ - else \ - fprintf (FILE, "\tcall %s\n", _name); \ - } \ - } \ - } while (0) - - -/************************[ Assembler stuff ]********************************/ - -#undef ASM_APP_ON -#define ASM_APP_ON "#APP\n" - -#undef ASM_APP_OFF -#define ASM_APP_OFF "#NO_APP\n" - -/* This is how to begin an assembly language file. - The .file command should always begin the output. - ELF also needs a .version. */ - -#undef ASM_FILE_START -#define ASM_FILE_START(FILE) \ - do { \ - output_file_directive ((FILE), main_input_filename); \ - if (TARGET_ELF) \ - fprintf ((FILE), "\t.version\t\"01.01\"\n"); \ - } while (0) - -/* This is how to store into the string BUF - the symbol_ref name of an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. - This is suitable for output with `assemble_name'. */ -#undef ASM_GENERATE_INTERNAL_LABEL -#define ASM_GENERATE_INTERNAL_LABEL(BUF, PREFIX, NUMBER) \ - sprintf ((BUF), "*%s%s%d", (TARGET_UNDERSCORES) ? "" : ".", \ - (PREFIX), (NUMBER)) - -/* This is how to output an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. - For most svr4/ELF systems, the convention is that any symbol which begins - with a period is not put into the linker symbol table by the assembler. */ -#undef ASM_OUTPUT_INTERNAL_LABEL -#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ - fprintf ((FILE), "%s%s%d:\n", (TARGET_UNDERSCORES) ? "" : ".", \ - (PREFIX), (NUM)) - -/* This is how to output a reference to a user-level label named NAME. */ -#undef ASM_OUTPUT_LABELREF -#define ASM_OUTPUT_LABELREF(FILE, NAME) \ - do { \ - char *_name = (NAME); \ - /* Hack to avoid writing lots of rtl in \ - FUNCTION_PROFILER_EPILOGUE (). */ \ - if (*_name == '.' && strcmp(_name + 1, "mexitcount") == 0) \ - { \ - if (TARGET_AOUT) \ - _name++; \ - if (flag_pic) \ - fprintf ((FILE), "*%s@GOT(%%ebx)", _name); \ - else \ - fprintf ((FILE), "%s", _name); \ - } \ - else \ - fprintf (FILE, "%s%s", TARGET_UNDERSCORES ? "_" : "", _name); \ -} while (0) - -/* This is how to hack on the symbol code of certain relcalcitrant - symbols to modify their output in output_pic_addr_const (). */ - -#undef ASM_HACK_SYMBOLREF_CODE -#define ASM_HACK_SYMBOLREF_CODE(NAME, CODE) \ - do { \ - /* Part of hack to avoid writing lots of rtl in \ - FUNCTION_PROFILER_EPILOGUE (). */ \ - char *_name = (NAME); \ - if (*_name == '.' && strcmp(_name + 1, "mexitcount") == 0) \ - (CODE) = 'X'; \ - } while (0) +#undef SET_ASM_OP +#define SET_ASM_OP ".set" /* 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)) - -#undef ASM_OUTPUT_ALIGN -#define ASM_OUTPUT_ALIGN(FILE, LOG) \ - if ((LOG)!=0) { \ - if (in_text_section()) \ - fprintf ((FILE), "\t.p2align %d,0x90\n", (LOG)); \ - else \ - fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ - } - -#undef ASM_OUTPUT_SOURCE_LINE -#define ASM_OUTPUT_SOURCE_LINE(FILE, LINE) \ - do { \ - static int sym_lineno = 1; \ - if (TARGET_ELF) \ - { \ - fprintf ((FILE), ".stabn 68,0,%d,.LM%d-", (LINE), sym_lineno); \ - assemble_name ((FILE), \ - XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \ - fprintf ((FILE), "\n.LM%d:\n", sym_lineno); \ - sym_lineno += 1; \ - } \ - else \ - { \ - fprintf ((FILE), "\t%s %d,0,%d\n", ASM_STABD_OP, N_SLINE, \ - lineno); \ - } \ - } while (0) - -/* These macros generate the special .type and .size directives which - are used to set the corresponding fields of the linker symbol table - entries in an ELF object file under SVR4. These macros also output - the starting labels for the relevant functions/objects. */ - -/* Write the extra assembler code needed to declare a function properly. - Some svr4 assemblers need to also have something extra said about the - function's return value. We allow for that here. */ - -#undef ASM_DECLARE_FUNCTION_NAME -#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ - do { \ - fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ - assemble_name (FILE, NAME); \ - putc (',', FILE); \ - fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ - putc ('\n', FILE); \ - ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ - ASM_OUTPUT_LABEL(FILE, NAME); \ - } while (0) - -/* This is how to declare the size of a function. */ - -#undef ASM_DECLARE_FUNCTION_SIZE -#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ - do { \ - if (!flag_inhibit_size_directive) \ - { \ - char label[256]; \ - static int labelno; \ - labelno++; \ - ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \ - ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \ - fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ - assemble_name (FILE, (FNAME)); \ - fprintf (FILE, ","); \ - assemble_name (FILE, label); \ - fprintf (FILE, "-"); \ - assemble_name (FILE, (FNAME)); \ - putc ('\n', FILE); \ - } \ - } while (0) - - -/* The routine used to output NUL terminated strings. We use a special - version of this for most svr4 targets because doing so makes the - generated assembly code more compact (and thus faster to assemble) - as well as more readable, especially for targets like the i386 - (where the only alternative is to output character sequences as - comma separated lists of numbers). */ - -#undef ASM_OUTPUT_LIMITED_STRING -#define ASM_OUTPUT_LIMITED_STRING(FILE, STR) \ - do { \ - register unsigned char *_limited_str = (unsigned char *) (STR); \ - register unsigned ch; \ - fprintf ((FILE), "\t%s\t\"", STRING_ASM_OP); \ - for (; (ch = *_limited_str); _limited_str++) \ - { \ - register int escape; \ - switch (escape = ESCAPES[ch]) \ - { \ - case 0: \ - putc (ch, (FILE)); \ - break; \ - case 1: \ - fprintf ((FILE), "\\%03o", ch); \ - break; \ - default: \ - putc ('\\', (FILE)); \ - putc (escape, (FILE)); \ - break; \ - } \ - } \ - fprintf ((FILE), "\"\n"); \ - } while (0) - -/* Switch into a generic section. - - We make the section read-only and executable for a function decl, - read-only for a const data decl, and writable for a non-const data decl. - - If the section has already been defined, we must not - emit the attributes here. The SVR4 assembler does not - recognize section redefinitions. - If DECL is NULL, no attributes are emitted. */ - -#undef ASM_OUTPUT_SECTION_NAME -#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC) \ - do { \ - static struct section_info \ - { \ - struct section_info *next; \ - char *name; \ - enum sect_enum {SECT_RW, SECT_RO, SECT_EXEC} type; \ - } *sections; \ - struct section_info *s; \ - char *mode; \ - enum sect_enum type; \ - \ - for (s = sections; s; s = s->next) \ - if (!strcmp (NAME, s->name)) \ - break; \ - \ - if (DECL && TREE_CODE (DECL) == FUNCTION_DECL) \ - type = SECT_EXEC, mode = "ax"; \ - else if (DECL && DECL_READONLY_SECTION (DECL, RELOC)) \ - type = SECT_RO, mode = "a"; \ - else \ - type = SECT_RW, mode = "aw"; \ - \ - if (s == 0) \ - { \ - s = (struct section_info *) xmalloc (sizeof (struct section_info)); \ - s->name = xmalloc ((strlen (NAME) + 1) * sizeof (*NAME)); \ - strcpy (s->name, NAME); \ - s->type = type; \ - s->next = sections; \ - sections = s; \ - fprintf (FILE, ".section\t%s,\"%s\",@progbits\n", NAME, mode); \ - } \ - else \ - { \ - if (DECL && s->type != type) \ - error_with_decl (DECL, "%s causes a section type conflict"); \ - \ - fprintf (FILE, ".section\t%s\n", NAME); \ - } \ - } while (0) - -#undef MAKE_DECL_ONE_ONLY -#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1) -#undef UNIQUE_SECTION_P -#define UNIQUE_SECTION_P(DECL) (DECL_ONE_ONLY (DECL)) -#undef UNIQUE_SECTION -#define UNIQUE_SECTION(DECL,RELOC) \ - do { \ - int len; \ - char *name, *string, *prefix; \ - \ - name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \ - \ - if (! DECL_ONE_ONLY (DECL)) \ - { \ - prefix = "."; \ - if (TREE_CODE (DECL) == FUNCTION_DECL) \ - prefix = ".text."; \ - else if (DECL_READONLY_SECTION (DECL, RELOC)) \ - prefix = ".rodata."; \ - else \ - prefix = ".data."; \ - } \ - else if (TREE_CODE (DECL) == FUNCTION_DECL) \ - prefix = ".gnu.linkonce.t."; \ - else if (DECL_READONLY_SECTION (DECL, RELOC)) \ - prefix = ".gnu.linkonce.r."; \ - else \ - prefix = ".gnu.linkonce.d."; \ - \ - len = strlen (name) + strlen (prefix); \ - string = alloca (len + 1); \ - sprintf (string, "%s%s", prefix, name); \ - \ - DECL_SECTION_NAME (DECL) = build_string (len, string); \ - } while (0) - -/* A C statement or statements to switch to the appropriate - section for output of DECL. DECL is either a `VAR_DECL' node - or a constant of some sort. RELOC indicates whether forming - the initial value of DECL requires link-time relocations. */ - -#undef SELECT_SECTION -#define SELECT_SECTION(DECL,RELOC) \ - { \ - if (flag_pic && RELOC) \ - data_section (); \ - else if (TREE_CODE (DECL) == STRING_CST) \ - { \ - if (! flag_writable_strings) \ - const_section (); \ - else \ - data_section (); \ - } \ - else if (TREE_CODE (DECL) == VAR_DECL) \ - { \ - if (! DECL_READONLY_SECTION (DECL, RELOC)) \ - data_section (); \ - else \ - const_section (); \ - } \ - else \ - const_section (); \ - } - -/* Define macro used to output shift-double opcodes when the shift - count is in %cl. Some assemblers require %cl as an argument; - some don't. - - *OLD* GAS requires the %cl argument, so override i386/unix.h. */ - -#undef AS3_SHIFT_DOUBLE -#define AS3_SHIFT_DOUBLE(a,b,c,d) AS3 (a,b,c,d) +#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) -/************************[ Debugger stuff ]*********************************/ +/* Use stabs instead of DWARF debug format. */ +#undef PREFERRED_DEBUGGING_TYPE +#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG /* Copy this from the svr4 specifications... */ /* Define the register numbers to be used in Dwarf debugging information. @@ -621,8 +122,8 @@ Boston, MA 02111-1307, USA. */ 17 for %st(6) (gnu regno = 14) 18 for %st(7) (gnu regno = 15) */ -#undef DWARF_DBX_REGISTER_NUMBER -#define DWARF_DBX_REGISTER_NUMBER(n) \ +#undef DBX_REGISTER_NUMBER +#define DBX_REGISTER_NUMBER(n) \ ((n) == 0 ? 0 \ : (n) == 1 ? 2 \ : (n) == 2 ? 1 \ @@ -634,59 +135,123 @@ Boston, MA 02111-1307, USA. */ : ((n) >= FIRST_STACK_REG && (n) <= LAST_STACK_REG) ? (n)+3 \ : (-1)) -/* Now what stabs expects in the register. */ -#undef STABS_DBX_REGISTER_NUMBER -#define STABS_DBX_REGISTER_NUMBER(n) \ -((n) == 0 ? 0 : \ - (n) == 1 ? 2 : \ - (n) == 2 ? 1 : \ - (n) == 3 ? 3 : \ - (n) == 4 ? 6 : \ - (n) == 5 ? 7 : \ - (n) == 6 ? 4 : \ - (n) == 7 ? 5 : \ - (n) + 4) - -#undef DBX_REGISTER_NUMBER -#define DBX_REGISTER_NUMBER(n) ((write_symbols == DWARF_DEBUG) \ - ? DWARF_DBX_REGISTER_NUMBER(n) \ - : STABS_DBX_REGISTER_NUMBER(n)) - -/* tag end of file in elf mode */ -#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END -#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \ - do { \ - if (TARGET_ELF) { \ - fprintf ((FILE), "\t.text\n\t.stabs \"\",%d,0,0,.Letext\n.Letext:\n", \ - N_SO); \ - } \ - } while (0) - -/* stabs-in-elf has offsets relative to function beginning */ -#undef DBX_OUTPUT_LBRAC -#define DBX_OUTPUT_LBRAC(FILE, NAME) \ - do { \ - fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC); \ - assemble_name (asmfile, buf); \ - if (TARGET_ELF) \ - { \ - fputc ('-', asmfile); \ - assemble_name (asmfile, \ - XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \ - } \ - fprintf (asmfile, "\n"); \ - } while (0) - -#undef DBX_OUTPUT_RBRAC -#define DBX_OUTPUT_RBRAC(FILE, NAME) \ - do { \ - fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC); \ - assemble_name (asmfile, buf); \ - if (TARGET_ELF) \ - { \ - fputc ('-', asmfile); \ - assemble_name (asmfile, \ - XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \ - } \ - fprintf (asmfile, "\n"); \ - } while (0) +/* 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 SIZE_TYPE +#define SIZE_TYPE "unsigned int" + +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE "int" + +#undef WCHAR_TYPE +#define WCHAR_TYPE "int" + +#undef WCHAR_UNSIGNED +#define WCHAR_UNSIGNED 0 + +#undef WCHAR_TYPE_SIZE +#define WCHAR_TYPE_SIZE BITS_PER_WORD + +#undef CPP_PREDEFINES +#define CPP_PREDEFINES "-Di386 -Dunix -D__ELF__ -D__FreeBSD__ -Asystem(unix) -Asystem(FreeBSD) -Acpu(i386) -Amachine(i386)" + +#undef CPP_SPEC +#define CPP_SPEC "%(cpp_cpu) %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE}" + +/* This defines which switch letters take arguments. On FreeBSD, most of + the normal cases (defined in gcc.c) apply, and we also have -h* and + -z* options (for the linker) (comming from svr4). + We also have -R (alias --rpath), no -z, --soname (-h), --assert etc. */ + +#undef SWITCH_TAKES_ARG +#define SWITCH_TAKES_ARG(CHAR) \ + (DEFAULT_SWITCH_TAKES_ARG (CHAR) \ + || (CHAR) == 'h' \ + || (CHAR) == 'z' \ + || (CHAR) == 'R') + +/* 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'. */ + +#undef STARTFILE_SPEC +#define STARTFILE_SPEC \ + "%{!shared: \ + %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \ + %{!p:%{profile:gcrt1.o%s} \ + %{!profile:crt1.o%s}}}} \ + crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" + +/* Provide a ENDFILE_SPEC appropriate for FreeBSD. Here we tack on + the magical crtend.o file (see crtstuff.c) which provides part of + the support for getting C++ file-scope static object constructed + before entering `main', followed by a normal "finalizer" file, + `crtn.o'. */ + +#undef ENDFILE_SPEC +#define ENDFILE_SPEC \ + "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" + +/* Provide a LIB_SPEC appropriate for FreeBSD. Just select the appropriate + libc, depending on whether we're doing profiling or need threads support. + (simular to the default, except no -lg, and no -p. */ + +#undef LIB_SPEC +#define LIB_SPEC "%{!shared: \ + %{!pg:%{!pthread:%{!kthread:-lc} \ + %{kthread:-lpthread -lc}} \ + %{pthread:-lc_r}} \ + %{pg:%{!pthread:%{!kthread:-lc_p} \ + %{kthread:-lpthread_p -lc_p}} \ + %{pthread:-lc_r_p}}}" + +/* 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. + + When the -shared link option is used a final link is not being + done. */ + +#undef LINK_SPEC +#define LINK_SPEC "-m elf_i386 \ + %{Wl,*:%*} \ + %{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}} \ + %{static:-Bstatic}} \ + %{symbolic:-Bsymbolic}" + +/* A C statement to output to the stdio stream FILE an assembler + command to advance the location counter to a multiple of 1<<LOG + bytes if it is within MAX_SKIP bytes. + + This is used to align code labels according to Intel recommendations. */ + +#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN +#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 |
