X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fsystem.h;h=191e1b102c628641f0d699ed2290d77a78c5535e;hb=5d4b6e9c06cae8242813f303f804f31222500c65;hp=9454067ee933babd2c6cfe32b95efa68ca946e91;hpb=48cf6cb1420459140d6aff48561b7a2bec276ee9;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/system.h b/gcc/system.h index 9454067ee93..191e1b102c6 100644 --- a/gcc/system.h +++ b/gcc/system.h @@ -1,6 +1,7 @@ /* Get common system includes and various definitions and declarations based on autoconf macros. - Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 + Free Software Foundation, Inc. This file is part of GCC. @@ -23,12 +24,8 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #ifndef GCC_SYSTEM_H #define GCC_SYSTEM_H -/* We must include stdarg.h/varargs.h before stdio.h. */ -#ifdef ANSI_PROTOTYPES +/* We must include stdarg.h before stdio.h. */ #include -#else -#include -#endif #ifndef va_copy # ifdef __va_copy @@ -57,7 +54,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio code is multi-thread safe by default. If it is set to 0, then do not worry about using the _unlocked functions. - + fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are extensions and need to be prototyped by hand (since we do not define _GNU_SOURCE). */ @@ -77,14 +74,14 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA # undef fputs # define fputs(String, Stream) fputs_unlocked (String, Stream) # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED -extern int fputs_unlocked PARAMS ((const char *, FILE *)); +extern int fputs_unlocked (const char *, FILE *); # endif # endif # ifdef HAVE_FWRITE_UNLOCKED # undef fwrite # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED -extern int fwrite_unlocked PARAMS ((const PTR, size_t, size_t, FILE *)); +extern int fwrite_unlocked (const void *, size_t, size_t, FILE *); # endif # endif # ifdef HAVE_FPRINTF_UNLOCKED @@ -93,12 +90,17 @@ extern int fwrite_unlocked PARAMS ((const PTR, size_t, size_t, FILE *)); we have varargs macros. */ # define fprintf fprintf_unlocked # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED -extern int fprintf_unlocked PARAMS ((FILE *, const char *, ...)); +extern int fprintf_unlocked (FILE *, const char *, ...); # endif # endif #endif +/* ??? Glibc's fwrite/fread_unlocked macros cause + "warning: signed and unsigned type in conditional expression". */ +#undef fread_unlocked +#undef fwrite_unlocked + /* There are an extraordinary number of issues with . The last straw is that it varies with the locale. Use libiberty's replacement instead. */ @@ -112,6 +114,10 @@ extern int fprintf_unlocked PARAMS ((FILE *, const char *, ...)); extern int errno; #endif +/* Some of glibc's string inlines cause warnings. Plus we'd rather + rely on (and therefore test) GCC's string builtins. */ +#define __NO_STRING_INLINES + #ifdef STRING_WITH_STRINGS # include # include @@ -261,6 +267,12 @@ extern int errno; #ifndef WSTOPSIG #define WSTOPSIG WEXITSTATUS #endif +#ifndef WCOREDUMP +#define WCOREDUMP(S) ((S) & WCOREFLG) +#endif +#ifndef WCOREFLG +#define WCOREFLG 0200 +#endif /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they are defined to 0 then we must provide the relevant declaration @@ -268,39 +280,43 @@ extern int errno; is running so be careful to test "defined (HAVE_DECL_*)". */ #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF -extern double atof PARAMS ((const char *)); +extern double atof (const char *); #endif #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL -extern long atol PARAMS ((const char *)); +extern long atol (const char *); #endif #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE -extern void free PARAMS ((PTR)); +extern void free (void *); #endif #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD -extern char *getcwd PARAMS ((char *, size_t)); +extern char *getcwd (char *, size_t); #endif #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV -extern char *getenv PARAMS ((const char *)); +extern char *getenv (const char *); #endif #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT -extern int getopt PARAMS ((int, char * const *, const char *)); +extern int getopt (int, char * const *, const char *); +#endif + +#if defined(HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE +extern long getpagesize (void); #endif #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD -extern char *getwd PARAMS ((char *)); +extern char *getwd (char *); #endif #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK -extern PTR sbrk PARAMS ((int)); +extern void *sbrk (int); #endif #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR -extern char *strstr PARAMS ((const char *, const char *)); +extern char *strstr (const char *, const char *); #endif #ifdef HAVE_MALLOC_H @@ -308,32 +324,31 @@ extern char *strstr PARAMS ((const char *, const char *)); #endif #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC -extern PTR malloc PARAMS ((size_t)); +extern void *malloc (size_t); #endif #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC -extern PTR calloc PARAMS ((size_t, size_t)); +extern void *calloc (size_t, size_t); #endif #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC -extern PTR realloc PARAMS ((PTR, size_t)); +extern void *realloc (void *, size_t); #endif /* If the system doesn't provide strsignal, we get it defined in libiberty but no declaration is supplied. */ -#if !defined (HAVE_STRSIGNAL) || !HAVE_DECL_STRSIGNAL +#if !defined (HAVE_STRSIGNAL) \ + || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL) # ifndef strsignal -extern const char *strsignal PARAMS ((int)); +extern const char *strsignal (int); # endif #endif #ifdef HAVE_GETRLIMIT # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT # ifndef getrlimit -# ifdef ANSI_PROTOTYPES struct rlimit; -# endif -extern int getrlimit PARAMS ((int, struct rlimit *)); +extern int getrlimit (int, struct rlimit *); # endif # endif #endif @@ -341,22 +356,18 @@ extern int getrlimit PARAMS ((int, struct rlimit *)); #ifdef HAVE_SETRLIMIT # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT # ifndef setrlimit -# ifdef ANSI_PROTOTYPES struct rlimit; -# endif -extern int setrlimit PARAMS ((int, const struct rlimit *)); +extern int setrlimit (int, const struct rlimit *); # endif # endif #endif -/* HAVE_VOLATILE only refers to the stage1 compiler. We also check - __STDC__ and assume gcc sets it and has volatile in stage >=2. */ -#if !defined(HAVE_VOLATILE) && !defined(__STDC__) && !defined(volatile) -#define volatile +#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT +extern void abort (void); #endif -#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT -extern void abort PARAMS ((void)); +#if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF +extern int snprintf (char *, size_t, const char *, ...); #endif /* 1 if we have C99 designated initializers. */ @@ -365,13 +376,6 @@ extern void abort PARAMS ((void)); ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) #endif -/* 1 if we have _Bool. */ -#ifndef HAVE__BOOL -# define HAVE__BOOL \ - ((GCC_VERSION >= 3000) || (__STDC_VERSION__ >= 199901L)) -#endif - - #if HAVE_SYS_STAT_H # include #endif @@ -414,16 +418,6 @@ extern void abort PARAMS ((void)); # endif #endif -/* Approximate O_NONBLOCK. */ -#ifndef O_NONBLOCK -#define O_NONBLOCK O_NDELAY -#endif - -/* Approximate O_NOCTTY. */ -#ifndef O_NOCTTY -#define O_NOCTTY 0 -#endif - /* Define well known filenos if the system does not define them. */ #ifndef STDIN_FILENO # define STDIN_FILENO 0 @@ -444,10 +438,12 @@ extern void abort PARAMS ((void)); #ifndef HOST_PTR_PRINTF # ifdef HAVE_PRINTF_PTR # define HOST_PTR_PRINTF "%p" +# elif SIZEOF_INT == SIZEOF_VOID_P +# define HOST_PTR_PRINTF "%x" +# elif SIZEOF_LONG == SIZEOF_VOID_P +# define HOST_PTR_PRINTF "%lx" # else -# define HOST_PTR_PRINTF \ - (sizeof (int) == sizeof (char *) ? "%x" \ - : sizeof (long) == sizeof (char *) ? "%lx" : "%llx") +# define HOST_PTR_PRINTF "%llx" # endif #endif /* ! HOST_PTR_PRINTF */ @@ -456,34 +452,19 @@ extern void abort PARAMS ((void)); #define PATH_SEPARATOR ':' #endif +/* Filename handling macros. */ +#include "filenames.h" + +/* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */ #ifndef DIR_SEPARATOR -#define DIR_SEPARATOR '/' -#endif - -/* Define IS_DIR_SEPARATOR. */ -#ifndef DIR_SEPARATOR_2 -# define IS_DIR_SEPARATOR(CH) ((CH) == DIR_SEPARATOR) -#else /* DIR_SEPARATOR_2 */ -# define IS_DIR_SEPARATOR(CH) \ - (((CH) == DIR_SEPARATOR) || ((CH) == DIR_SEPARATOR_2)) -#endif /* DIR_SEPARATOR_2 */ - -/* Say how to test for an absolute pathname. On Unix systems, this is if - it starts with a leading slash or a '$', the latter meaning the value of - an environment variable is to be used. On machine with DOS-based - file systems, it is also absolute if it starts with a drive identifier. */ -#ifdef HAVE_DOS_BASED_FILE_SYSTEM -#define IS_ABSOLUTE_PATHNAME(STR) \ - (IS_DIR_SEPARATOR ((STR)[0]) || (STR)[0] == '$' \ - || ((STR)[0] != '\0' && (STR)[1] == ':' && IS_DIR_SEPARATOR ((STR)[2]))) -#else -#define IS_ABSOLUTE_PATHNAME(STR) \ - (IS_DIR_SEPARATOR ((STR)[0]) || (STR)[0] == '$') +# define DIR_SEPARATOR '/' +# ifdef HAVE_DOS_BASED_FILE_SYSTEM +# define DIR_SEPARATOR_2 '\\' +# endif #endif /* Get libiberty declarations. */ #include "libiberty.h" -#include "symcat.h" /* Provide a default for the HOST_BIT_BUCKET. This suffices for POSIX-like hosts. */ @@ -496,7 +477,7 @@ extern void abort PARAMS ((void)); FIXME: provide a complete autoconf test for buggy enum bitfields. */ #if (GCC_VERSION > 2000) -#define ENUM_BITFIELD(TYPE) enum TYPE +#define ENUM_BITFIELD(TYPE) __extension__ enum TYPE #else #define ENUM_BITFIELD(TYPE) unsigned int #endif @@ -505,16 +486,6 @@ extern void abort PARAMS ((void)); #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) #endif -/* Traditional C cannot initialize union members of structs. Provide - a macro which expands appropriately to handle it. This only works - if you intend to initialize the union member to zero since it relies - on default initialization to zero in the traditional C case. */ -#ifdef __STDC__ -#define UNION_INIT_ZERO , {0} -#else -#define UNION_INIT_ZERO -#endif - /* Various error reporting routines want to use __FUNCTION__. */ #if (GCC_VERSION < 2007) #ifndef __FUNCTION__ @@ -529,28 +500,54 @@ extern void abort PARAMS ((void)); #define __builtin_expect(a, b) (a) #endif -/* Provide some sort of boolean type. We use stdbool.h if it's - available. This must be after all inclusion of system headers, - as some of them will mess us up. */ -#undef bool -#undef true -#undef false +/* Redefine abort to report an internal error w/o coredump, and + reporting the location of the error in the source file. */ +extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; +#define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) + +/* Use gcc_assert(EXPR) to test invariants. */ +#if ENABLE_ASSERT_CHECKING +#define gcc_assert(EXPR) \ + ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0)) +#else +/* Include EXPR, so that unused variable warnings do not occur. */ +#define gcc_assert(EXPR) ((void)(0 && (EXPR))) +#endif + +/* Use gcc_unreachable() to mark unreachable locations (like an + unreachable default case of a switch. Do not use gcc_assert(0). */ +#define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__)) + +/* Provide a fake boolean type. We make no attempt to use the + C99 _Bool, as it may not be available in the bootstrap compiler, + and even if it is, it is liable to be buggy. + This must be after all inclusion of system headers, as some of + them will mess us up. */ + #undef TRUE #undef FALSE -#ifdef HAVE_STDBOOL_H -# include -#else -# if !HAVE__BOOL -typedef char _Bool; -# endif -# define bool _Bool +#ifdef __cplusplus + /* Obsolete. */ +# define TRUE true +# define FALSE false +#else /* !__cplusplus */ +# undef bool +# undef true +# undef false + +# define bool unsigned char # define true 1 # define false 0 -#endif -#define TRUE true -#define FALSE false + /* Obsolete. */ +# define TRUE true +# define FALSE false +#endif /* !__cplusplus */ + + +/* Some compilers do not allow the use of unsigned char in bitfields. */ +#define BOOL_BITFIELD unsigned int /* As the last action in this file, we poison the identifiers that shouldn't be used. Note, luckily gcc-3.0's token-based integrated @@ -567,7 +564,7 @@ typedef char _Bool; #define really_call_calloc calloc #define really_call_realloc realloc -#if defined(FLEX_SCANNER) || defined(YYBISON) +#if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC) /* Flex and bison use malloc and realloc. Yuk. Note that this means really_call_* cannot be used in a .l or .y file. */ #define malloc xmalloc @@ -603,13 +600,27 @@ typedef char _Bool; ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \ WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \ ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \ - ASM_OUTPUT_MI_THUNK + ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \ + ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \ + ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \ + INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \ + DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \ + MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \ + PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \ + ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS \ + STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \ + PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \ + SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \ + DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \ + HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \ + MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \ + VECTOR_MODE_SUPPORTED_P /* Other obsolete target macros, or macros that used to be in target headers and were not used, and may be obsolete or may never have been used. */ - #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG \ - ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT \ + #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \ + ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \ DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \ OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \ LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \ @@ -620,12 +631,48 @@ typedef char _Bool; BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \ FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \ MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP \ - ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL ASM_OUTPUT_INTERNAL_LABEL + ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL ASM_OUTPUT_INTERNAL_LABEL \ + OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \ + ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \ + DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \ + DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \ + INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \ + EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \ + LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \ + LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \ + CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \ + FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \ + PROMOTED_MODE EXPAND_BUILTIN_VA_END \ + LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \ + GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \ + MAX_WCHAR_TYPE_SIZE GCOV_TYPE_SIZE SHARED_SECTION_ASM_OP \ + INTEGRATE_THRESHOLD \ + FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \ + TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \ + DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \ + SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \ + SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \ + DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG /* Hooks that are no longer used. */ #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ - LANG_HOOKS_MARK_TREE - + LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \ + LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \ + LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \ + LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \ + LANG_HOOKS_POPLEVEL + +/* Libiberty macros that are no longer used in GCC. */ +#undef ANSI_PROTOTYPES +#undef PTR_CONST +#undef LONG_DOUBLE +#undef VPARAMS +#undef VA_OPEN +#undef VA_FIXEDARG +#undef VA_CLOSE +#undef VA_START + #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \ + VA_FIXEDARG VA_CLOSE VA_START #endif /* IN_GCC */ /* Note: not all uses of the `index' token (e.g. variable names and