diff options
Diffstat (limited to 'contrib/gcc/config/i386/i386-interix.h')
| -rw-r--r-- | contrib/gcc/config/i386/i386-interix.h | 238 |
1 files changed, 43 insertions, 195 deletions
diff --git a/contrib/gcc/config/i386/i386-interix.h b/contrib/gcc/config/i386/i386-interix.h index 8e9f44393ccf..962862f0858b 100644 --- a/contrib/gcc/config/i386/i386-interix.h +++ b/contrib/gcc/config/i386/i386-interix.h @@ -1,5 +1,5 @@ /* Target definitions for GNU compiler for Intel 80386 running Interix - Parts Copyright (C) 1991, 1999 Free Software Foundation, Inc. + Parts Copyright (C) 1991, 1999, 2000 Free Software Foundation, Inc. Parts: by Douglas B. Rupp (drupp@cs.washington.edu). @@ -26,9 +26,9 @@ Boston, MA 02111-1307, USA. */ #define YES_UNDERSCORES -/* YES_UNDERSCORES must preceed gas.h */ +/* YES_UNDERSCORES must precede gas.h */ #include <i386/gas.h> -/* The rest must follow. */ +/* The rest must follow. */ #define DBX_DEBUGGING_INFO #define SDB_DEBUGGING_INFO @@ -39,9 +39,9 @@ Boston, MA 02111-1307, USA. */ /* By default, target has a 80387, uses IEEE compatible arithmetic, and returns float values in the 387 and needs stack probes - We also align doubles to 64-bits for MSVC default compatability */ -#undef TARGET_DEFAULT -#define TARGET_DEFAULT \ + We also align doubles to 64-bits for MSVC default compatibility */ +#undef TARGET_SUBTARGET_DEFAULT +#define TARGET_SUBTARGET_DEFAULT \ (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_STACK_PROBE | \ MASK_ALIGN_DOUBLE) @@ -57,9 +57,6 @@ Boston, MA 02111-1307, USA. */ #define ASM_LOAD_ADDR(loc, reg) " leal " #loc "," #reg "\n" -/* For the sake of libgcc2.c, indicate target supports atexit. */ -#define HAVE_ATEXIT - /* cpp handles __STDC__ */ #undef CPP_PREDEFINES #define CPP_PREDEFINES " \ @@ -68,7 +65,7 @@ Boston, MA 02111-1307, USA. */ -D_M_IX86=300 -D_X86_=1 \ -D__stdcall=__attribute__((__stdcall__)) \ -D__cdecl=__attribute__((__cdecl__)) \ - -Asystem(unix) -Asystem(interix) -Asystem(interix) -Acpu(i386) -Amachine(i386)" + -Asystem=unix -Asystem=interix" #undef CPP_SPEC /* Write out the correct language type definition for the header files. @@ -86,14 +83,14 @@ Boston, MA 02111-1307, USA. */ -remap \ %(cpp_cpu) \ %{posix:-D_POSIX_SOURCE} \ --idirafter %$INTERIX_ROOT/usr/include" +-isystem %$INTERIX_ROOT/usr/include" #undef TARGET_VERSION #define TARGET_VERSION fprintf (stderr, " (i386 Interix)"); /* The global __fltused is necessary to cause the printf/scanf routines for outputting/inputting floating point numbers to be loaded. Since this - is kind of hard to detect, we just do it all the time. */ + is kind of hard to detect, we just do it all the time. */ #ifdef ASM_FILE_START #undef ASM_FILE_START @@ -143,7 +140,7 @@ Boston, MA 02111-1307, USA. */ #define STRING_LIMIT ((unsigned) 256) -#define STRING_ASM_OP ".string" +#define STRING_ASM_OP "\t.string\t" /* The routine used to output NUL terminated strings. We use a special version of this for most svr4 targets because doing so makes the @@ -155,9 +152,10 @@ Boston, MA 02111-1307, USA. */ #define ASM_OUTPUT_LIMITED_STRING(FILE, STR) \ do \ { \ - register unsigned char *_limited_str = (unsigned char *) (STR); \ + register const unsigned char *_limited_str = \ + (const unsigned char *) (STR); \ register unsigned ch; \ - fprintf ((FILE), "\t%s\t\"", STRING_ASM_OP); \ + fprintf ((FILE), "%s\"", STRING_ASM_OP); \ for (; (ch = *_limited_str); _limited_str++) \ { \ register int escape = ESCAPES[ch]; \ @@ -190,12 +188,13 @@ Boston, MA 02111-1307, USA. */ #define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \ do \ { \ - register unsigned char *_ascii_bytes = (unsigned char *) (STR); \ - register unsigned char *limit = _ascii_bytes + (LENGTH); \ + register const unsigned char *_ascii_bytes = \ + (const unsigned char *) (STR); \ + register const unsigned char *limit = _ascii_bytes + (LENGTH); \ register unsigned bytes_in_chunk = 0; \ for (; _ascii_bytes < limit; _ascii_bytes++) \ { \ - register unsigned char *p; \ + register const unsigned char *p; \ if (bytes_in_chunk >= 64) \ { \ fputc ('\n', (FILE)); \ @@ -203,7 +202,7 @@ Boston, MA 02111-1307, USA. */ } \ for (p = _ascii_bytes; p < limit && *p != '\0'; p++) \ continue; \ - if (p < limit && (p - _ascii_bytes) <= STRING_LIMIT) \ + if (p < limit && (p - _ascii_bytes) <= (long) STRING_LIMIT) \ { \ if (bytes_in_chunk > 0) \ { \ @@ -228,23 +227,8 @@ Boston, MA 02111-1307, USA. */ } \ while (0) -/* 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. - PE format differs on what PC-relative offsets look like (see - coff_i386_rtype_to_howto), and we need to compensate (by one word) here. */ - -#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+4]\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 1 - /* Emit code to check the stack when allocating more that 4000 - bytes in one go. */ + bytes in one go. */ #define CHECK_STACK_LIMIT 0x1000 @@ -254,10 +238,7 @@ Boston, MA 02111-1307, USA. */ #undef LD_FINI_SWITCH -/* The following are needed for C++, but also needed for profiling */ - -/* Support const sections and the ctors and dtors sections for g++. - Note that there appears to be two different ways to support const +/* Note that there appears to be two different ways to support const sections at the moment. You can either #define the symbol READONLY_DATA_SECTION (giving it some code which switches to the readonly data section) or else you can #define the symbols @@ -266,25 +247,7 @@ Boston, MA 02111-1307, USA. */ #define USE_CONST_SECTION 1 -#define CONST_SECTION_ASM_OP ".section\t.rdata,\"r\"" - -/* Define the pseudo-ops used to switch to the .ctors and .dtors sections. - - Note that we want to give these sections the SHF_WRITE attribute - because these sections will actually contain data (i.e. tables of - addresses of functions in the current root executable or shared library - file) and, in the case of a shared library, the relocatable addresses - will have to be properly resolved/relocated (and then written into) by - the dynamic linker when it actually attaches the given shared library - to the executing process. (Note that on SVR4, you may wish to use the - `-z text' option to the ELF linker, when building a shared library, as - an additional check that you are doing everything right. But if you do - use the `-z text' option when building a shared library, you will get - errors unless the .ctors and .dtors sections are marked as writable - via the SHF_WRITE attribute.) */ - -#define CTORS_SECTION_ASM_OP ".section\t.ctors,\"x\"" -#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"x\"" +#define CONST_SECTION_ASM_OP "\t.section\t.rdata,\"r\"" /* A default list of other sections which we might be "in" at any given time. For targets that use additional sections (e.g. .tdesc) you @@ -292,7 +255,7 @@ Boston, MA 02111-1307, USA. */ includes this file. */ #undef EXTRA_SECTIONS -#define EXTRA_SECTIONS in_const, in_ctors, in_dtors +#define EXTRA_SECTIONS in_const /* A default list of extra section function definitions. For targets that use additional sections (e.g. .tdesc) you should override this @@ -300,15 +263,11 @@ Boston, MA 02111-1307, USA. */ #undef EXTRA_SECTION_FUNCTIONS #define EXTRA_SECTION_FUNCTIONS \ - CONST_SECTION_FUNCTION \ - CTORS_SECTION_FUNCTION \ - DTORS_SECTION_FUNCTION + CONST_SECTION_FUNCTION #undef READONLY_DATA_SECTION #define READONLY_DATA_SECTION() const_section () -extern void text_section (); - #define CONST_SECTION_FUNCTION \ void \ const_section () \ @@ -322,85 +281,21 @@ const_section () \ } \ } -#define CTORS_SECTION_FUNCTION \ -void \ -ctors_section () \ -{ \ - if (in_section != in_ctors) \ - { \ - fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \ - in_section = in_ctors; \ - } \ -} - -#define DTORS_SECTION_FUNCTION \ -void \ -dtors_section () \ -{ \ - if (in_section != in_dtors) \ - { \ - fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \ - in_section = in_dtors; \ - } \ -} - -#if 0 -/* Currently gas chokes on this; that's not too hard to fix, but there's - not a lot of impeteus to do it, either. If it is done, gas will have - to handle long section name escapes (which are defined in the COFF/PE - document as /nnn where nnn is a string table index). The benefit: - section attributes and -ffunction-sections, neither of which seem to - be critical. */ -/* gas may have been fixed? bfd was. */ - -/* Switch into a generic section. - This is currently only used to support section attributes. - - 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. */ -#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME) \ - fprintf (FILE, ".section\t%s,\"%s\",@progbits\n", NAME, \ - (DECL) && TREE_CODE (DECL) == FUNCTION_DECL ? "ax" : \ - (DECL) && TREE_READONLY (DECL) ? "a" : "aw") -#endif - -#define INT_ASM_OP ".long" - /* The MS compilers take alignment as a number of bytes, so we do as well */ #undef ASM_OUTPUT_ALIGN #define ASM_OUTPUT_ALIGN(FILE,LOG) \ if ((LOG)!=0) fprintf ((FILE), "\t.balign %d\n", 1<<(LOG)) -/* A C statement (sans semicolon) to output an element in the table of - global constructors. */ -#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ - do { \ - ctors_section (); \ - fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, "\n"); \ - } while (0) - -/* A C statement (sans semicolon) to output an element in the table of - global destructors. */ -#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ - do { \ - dtors_section (); \ - fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, "\n"); \ - } while (0) - /* The linker will take care of this, and having them causes problems with - ld -r (specifically -rU). */ + ld -r (specifically -rU). */ #define CTOR_LISTS_DEFINED_EXTERNALLY 1 -#define SET_ASM_OP ".set" +#define SET_ASM_OP "\t.set\t" /* Output a definition (implements alias) */ #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \ do \ { \ - fprintf ((FILE), "\t%s\t", SET_ASM_OP); \ + fprintf ((FILE), "%s", SET_ASM_OP); \ assemble_name (FILE, LABEL1); \ fprintf (FILE, ","); \ assemble_name (FILE, LABEL2); \ @@ -417,7 +312,7 @@ while (0) /* The following two flags are usually "off" for i386, because some non-gnu tools (for the i386) don't handle them. However, we don't have that - problem, so.... */ + problem, so.... */ /* Forward references to tags are allowed. */ #define SDB_ALLOW_FORWARD_REFERENCES @@ -435,7 +330,8 @@ while (0) #undef DBX_REGISTER_NUMBER #define DBX_REGISTER_NUMBER(n) \ -((n) == 0 ? 0 \ +(TARGET_64BIT ? dbx64_register_map[n] \ + : (n) == 0 ? 0 \ : (n) == 1 ? 2 \ : (n) == 2 ? 1 \ : (n) == 3 ? 3 \ @@ -452,9 +348,10 @@ while (0) Apply stddef, handle (as yet unimplemented) pic. - stddef renaming does NOT apply to Alpha. */ + stddef renaming does NOT apply to Alpha. */ -char *gen_stdcall_suffix (); +union tree_node; +const char *gen_stdcall_suffix PARAMS ((union tree_node *)); #undef ENCODE_SECTION_INFO #define ENCODE_SECTION_INFO(DECL) \ @@ -482,16 +379,17 @@ while (0) #undef STRIP_NAME_ENCODING #define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) \ do { \ - char *_p; \ - char *_name = SYMBOL_NAME; \ + const char *_p; \ + const char *_name = SYMBOL_NAME; \ for (_p = _name; *_p && *_p != '@'; ++_p) \ ; \ if (*_p == '@') \ { \ int _len = _p - _name; \ - (VAR) = (char *) alloca (_len + 1); \ - strncpy ((VAR), _name, _len); \ - (VAR)[_len] = '\0'; \ + char *_new_name = (char *) alloca (_len + 1); \ + strncpy (_new_name, _name, _len); \ + _new_name[_len] = '\0'; \ + (VAR) = _new_name; \ } \ else \ (VAR) = _name; \ @@ -500,7 +398,7 @@ do { \ #if 0 /* Turn this back on when the linker is updated to handle grouped .data$ sections correctly. See corresponding note in i386/interix.c. - MK. */ + MK. */ /* Define this macro if in some cases global symbols from one translation unit may not be bound to undefined symbols in another translation unit @@ -508,68 +406,18 @@ do { \ symbols must be explicitly imported from shared libraries (DLLs). */ #define MULTIPLE_SYMBOL_SPACES -#define UNIQUE_SECTION_P(DECL) DECL_ONE_ONLY (DECL) extern void i386_pe_unique_section (); #define UNIQUE_SECTION(DECL,RELOC) i386_pe_unique_section (DECL, RELOC) #define SUPPORTS_ONE_ONLY 1 -/* A C statement to output something to the assembler file to switch to section - NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or - NULL_TREE. Some target formats do not support arbitrary sections. Do not - define this macro in such cases. */ -#undef ASM_OUTPUT_SECTION_NAME -#define ASM_OUTPUT_SECTION_NAME(STREAM, 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 = "x"; \ - else if (DECL && DECL_READONLY_SECTION (DECL, RELOC)) \ - type = SECT_RO, mode = "r"; \ - else \ - type = SECT_RW, mode = "w"; \ - \ - 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 (STREAM, ".section\t%s,\"%s\"\n", NAME, mode); \ - /* Functions may have been compiled at various levels of \ - optimization so we can't use `same_size' here. Instead, \ - have the linker pick one. */ \ - if ((DECL) && DECL_ONE_ONLY (DECL)) \ - fprintf (STREAM, "\t.linkonce %s\n", \ - TREE_CODE (DECL) == FUNCTION_DECL \ - ? "discard" : "same_size"); \ - } \ - else \ - { \ - fprintf (STREAM, ".section\t%s,\"%s\"\n", NAME, mode); \ - } \ -} while (0) - +/* Switch into a generic section. */ +#define TARGET_ASM_NAMED_SECTION default_pe_asm_named_section #endif /* 0 */ -/* DWARF2 Unwinding doesn't work with exception handling yet. */ +/* DWARF2 Unwinding doesn't work with exception handling yet. */ #define DWARF2_UNWIND_INFO 0 -/* Don't assume anything about the header files. */ +/* Don't assume anything about the header files. */ #define NO_IMPLICIT_EXTERN_C |