X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fsystem.h;h=7c7d07ea3eef6fc07c835d3e818e6f06dedcbeee;hb=09ddc95a572b25f2a87d7b8e928b2a97663727b9;hp=92b045c1a5e9f450148f31abba83891cbc66c530;hpb=a6338531b6439d9587aad27e8161920dd801edfa;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/system.h b/gcc/system.h index 92b045c1a5e..7c7d07ea3ee 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, 2003, 2004, 2005, 2007 + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, + 2009, 2010, 2011 Free Software Foundation, Inc. This file is part of GCC. @@ -46,6 +47,9 @@ along with GCC; see the file COPYING3. If not see #endif /* Use the unlocked open routines from libiberty. */ +#ifdef fopen /* fopen is a #define on VMS. */ +#undef fopen +#endif #define fopen(PATH,MODE) fopen_unlocked(PATH,MODE) #define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE) #define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM) @@ -86,6 +90,10 @@ along with GCC; see the file COPYING3. If not see # define fputc(C, Stream) fputc_unlocked (C, Stream) # endif +#ifdef __cplusplus +extern "C" { +#endif + # ifdef HAVE_CLEARERR_UNLOCKED # undef clearerr # define clearerr(Stream) clearerr_unlocked (Stream) @@ -166,6 +174,10 @@ extern int fprintf_unlocked (FILE *, const char *, ...); # endif # endif +#ifdef __cplusplus +} +#endif + #endif /* ??? Glibc's fwrite/fread_unlocked macros cause @@ -176,7 +188,7 @@ extern int fprintf_unlocked (FILE *, const char *, ...); /* There are an extraordinary number of issues with . The last straw is that it varies with the locale. Use libiberty's replacement instead. */ -#include +#include "safe-ctype.h" #include @@ -186,6 +198,10 @@ extern int fprintf_unlocked (FILE *, const char *, ...); extern int errno; #endif +#ifdef __cplusplus +# include +#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 @@ -310,6 +326,9 @@ extern int errno; #ifndef O_WRONLY # define O_WRONLY 1 #endif +#ifndef O_BINARY +# define O_BINARY 0 +#endif /* Some systems define these in, e.g., param.h. We undefine these names here to avoid the warnings. We prefer to use our definitions since we @@ -349,11 +368,40 @@ extern int errno; #define WCOREFLG 0200 #endif +#include +#if !defined (SIGCHLD) && defined (SIGCLD) +# define SIGCHLD SIGCLD +#endif + +#ifdef HAVE_SYS_MMAN_H +# include +#endif + +#ifndef MAP_FAILED +# define MAP_FAILED ((void *)-1) +#endif + +#if !defined (MAP_ANONYMOUS) && defined (MAP_ANON) +# define MAP_ANONYMOUS MAP_ANON +#endif + +#ifdef HAVE_SYS_RESOURCE_H +# include +#endif + +#ifdef HAVE_SYS_TIMES_H +# include +#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 here. These checks will be in the undefined state while configure is running so be careful to test "defined (HAVE_DECL_*)". */ +#ifdef __cplusplus +extern "C" { +#endif + #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF extern double atof (const char *); #endif @@ -394,10 +442,18 @@ extern void *sbrk (int); extern char *strstr (const char *, const char *); #endif +#ifdef __cplusplus +} +#endif + #ifdef HAVE_MALLOC_H #include #endif +#ifdef __cplusplus +extern "C" { +#endif + #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC extern void *malloc (size_t); #endif @@ -410,6 +466,22 @@ extern void *calloc (size_t, size_t); extern void *realloc (void *, size_t); #endif +#ifdef __cplusplus +} +#endif + +#ifdef HAVE_STDINT_H +#include +#endif + +#ifdef HAVE_INTTYPES_H +#include +#endif + +#ifdef __cplusplus +extern "C" { +#endif + /* If the system doesn't provide strsignal, we get it defined in libiberty but no declaration is supplied. */ #if !defined (HAVE_STRSIGNAL) \ @@ -449,10 +521,21 @@ extern int snprintf (char *, size_t, const char *, ...); extern int vsnprintf(char *, size_t, const char *, va_list); #endif +#ifdef __cplusplus +} +#endif + /* 1 if we have C99 designated initializers. */ #if !defined(HAVE_DESIGNATED_INITIALIZERS) #define HAVE_DESIGNATED_INITIALIZERS \ - ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) + (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \ + && !defined(__cplusplus)) +#endif + +#if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS) +#define HAVE_DESIGNATED_UNION_INITIALIZERS \ + (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \ + && (!defined(__cplusplus) || (GCC_VERSION >= 4007))) #endif #if HAVE_SYS_STAT_H @@ -513,6 +596,15 @@ extern int vsnprintf(char *, size_t, const char *, va_list); # define mkdir(a,b) mkdir(a) #endif +#ifndef HAVE_KILL +# define kill(p,s) raise(s) +#endif + +/* Provide a way to print an address via printf. */ +#ifndef HOST_PTR_PRINTF +#define HOST_PTR_PRINTF "%p" +#endif /* ! HOST_PTR_PRINTF */ + /* By default, colon separates directories in a path. */ #ifndef PATH_SEPARATOR #define PATH_SEPARATOR ':' @@ -529,6 +621,11 @@ extern int vsnprintf(char *, size_t, const char *, va_list); # endif #endif +#if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H) +/* If plugin support is enabled, we could use libdl. */ +#include +#endif + /* Get libiberty declarations. */ #include "libiberty.h" @@ -539,15 +636,6 @@ extern int vsnprintf(char *, size_t, const char *, va_list); #define HOST_BIT_BUCKET "/dev/null" #endif -/* Be conservative and only use enum bitfields with GCC. - FIXME: provide a complete autoconf test for buggy enum bitfields. */ - -#if (GCC_VERSION > 2000) -#define ENUM_BITFIELD(TYPE) __extension__ enum TYPE -#else -#define ENUM_BITFIELD(TYPE) unsigned int -#endif - #ifndef offsetof #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) #endif @@ -575,14 +663,27 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; #if ENABLE_ASSERT_CHECKING #define gcc_assert(EXPR) \ ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0)) +#elif (GCC_VERSION >= 4005) +#define gcc_assert(EXPR) \ + ((void)(__builtin_expect(!(EXPR), 0) ? __builtin_unreachable(), 0 : 0)) #else /* Include EXPR, so that unused variable warnings do not occur. */ #define gcc_assert(EXPR) ((void)(0 && (EXPR))) #endif +#ifdef ENABLE_CHECKING +#define gcc_checking_assert(EXPR) gcc_assert (EXPR) +#else +#define gcc_checking_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). */ +#if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING +#define gcc_unreachable() __builtin_unreachable() +#else #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__)) +#endif /* Provide a fake boolean type. We make no attempt to use the C99 _Bool, as it may not be available in the bootstrap compiler, @@ -653,6 +754,12 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; #pragma GCC poison malloc realloc #endif +/* The %m format should be used when GCC's main diagnostic functions + supporting %m are available, and xstrerror from libiberty + otherwise. */ +#undef strerror + #pragma GCC poison strerror + /* Old target macros that have moved to the target hooks structure. */ #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \ FUNCTION_PROLOGUE FUNCTION_EPILOGUE \ @@ -672,7 +779,7 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; 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 \ + ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \ STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \ PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \ SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \ @@ -681,7 +788,23 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \ VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \ FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \ - ALLOCATE_INITIAL_VALUE + ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \ + CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \ + TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \ + RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \ + OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \ + USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \ + LABEL_ALIGN_MAX_SKIP LOOP_ALIGN_MAX_SKIP \ + LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP JUMP_ALIGN_MAX_SKIP \ + CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \ + HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \ + OUTPUT_ADDR_CONST_EXTRA + +/* Target macros only used for code built for the target, that have + moved to libgcc-tm.h or have never been present elsewhere. */ + #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \ + MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \ + REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT /* 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 @@ -729,12 +852,24 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \ LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \ TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \ - PREDICATE_CODES SPECIAL_MODE_PREDICATES HOST_PTR_PRINTF \ + PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \ EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \ TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \ SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \ - ASM_OUTPUT_SHARED_LOCAL UNALIGNED_WORD_ASM_OP \ - ASM_MAKE_LABEL_LINKONCE + ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \ + STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \ + ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \ + ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \ + SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \ + TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \ + HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \ + FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \ + USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \ + FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \ + MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \ + SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \ + PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \ + STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT /* Hooks that are no longer used. */ #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ @@ -742,7 +877,21 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; 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 LANG_HOOKS_TRUTHVALUE_CONVERSION + LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \ + TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \ + LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \ + TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \ + TARGET_IRA_COVER_CLASSES TARGET_HELP + +/* Arrays that were deleted in favor of a functional interface. */ + #pragma GCC poison built_in_decls implicit_built_in_decls + +/* Hooks into libgcc2. */ + #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \ + LIBGCC2_FLOAT_WORDS_BIG_ENDIAN + +/* Miscellaneous macros that are no longer used. */ + #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT /* Libiberty macros that are no longer used in GCC. */ #undef ANSI_PROTOTYPES @@ -757,6 +906,12 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; VA_FIXEDARG VA_CLOSE VA_START #endif /* IN_GCC */ +/* Front ends should never have to include middle-end headers. Enforce + this by poisoning the header double-include protection defines. */ +#ifdef IN_GCC_FRONTEND +#pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H +#endif + /* Note: not all uses of the `index' token (e.g. variable names and structure members) have been eliminated. */ #undef bcopy @@ -783,25 +938,80 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; change after the fact). Beyond these uses, most other cases of using this macro should be viewed with extreme caution. */ -#if defined(__GNUC__) && GCC_VERSION != 4000 -/* GCC 4.0.x has a bug where it may ICE on this expression. */ +#ifdef __cplusplus +#define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast (X)) +#else +#if defined(__GNUC__) && GCC_VERSION > 4000 +/* GCC 4.0.x has a bug where it may ICE on this expression, + so does GCC 3.4.x (PR17436). */ #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq) +#elif defined(__GNUC__) +static inline char * +helper_const_non_const_cast (const char *p) +{ + union { + const char *const_c; + char *c; + } val; + val.const_c = p; + return val.c; +} + +#define CONST_CAST2(TOTYPE,FROMTYPE,X) \ + ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X))) #else #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X)) #endif +#endif #define CONST_CAST(TYPE,X) CONST_CAST2(TYPE, const TYPE, (X)) #define CONST_CAST_TREE(X) CONST_CAST(union tree_node *, (X)) #define CONST_CAST_RTX(X) CONST_CAST(struct rtx_def *, (X)) #define CONST_CAST_BB(X) CONST_CAST(struct basic_block_def *, (X)) +#define CONST_CAST_GIMPLE(X) CONST_CAST(union gimple_statement_d *, (X)) -/* Activate -Wcast-qual as a warning (not an error/-Werror). */ +/* Activate certain diagnostics as warnings (not errors via the + -Werror flag). */ #if GCC_VERSION >= 4003 -#pragma GCC diagnostic warning "-Wcast-qual" /* If asserts are disabled, activate -Wuninitialized as a warning (not an error/-Werror). */ -#ifndef ASSERT_CHECKING +#ifndef ENABLE_ASSERT_CHECKING #pragma GCC diagnostic warning "-Wuninitialized" #endif #endif +#ifdef ENABLE_VALGRIND_CHECKING +# ifdef HAVE_VALGRIND_MEMCHECK_H +# include +# elif defined HAVE_MEMCHECK_H +# include +# else +# include +# endif +/* Compatibility macros to let valgrind 3.1 work. */ +# ifndef VALGRIND_MAKE_MEM_NOACCESS +# define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS +# endif +# ifndef VALGRIND_MAKE_MEM_DEFINED +# define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE +# endif +# ifndef VALGRIND_MAKE_MEM_UNDEFINED +# define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE +# endif +#else +/* Avoid #ifdef:s when we can help it. */ +#define VALGRIND_DISCARD(x) +#define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z) +#define VALGRIND_FREELIKE_BLOCK(x,y) +#endif + +/* In LTO -fwhole-program build we still want to keep the debug functions available + for debugger. Mark them as used to prevent removal. */ +#if (GCC_VERSION > 4000) +#define DEBUG_FUNCTION __attribute__ ((__used__)) +#define DEBUG_VARIABLE __attribute__ ((__used__)) +#else +#define DEBUG_FUNCTION +#define DEBUG_VARIABLE +#endif + #endif /* ! GCC_SYSTEM_H */