X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fsystem.h;h=a8b4fa93558ef2d3e2c20492d37c550bed75f42d;hb=f0f39928e5687eb3bb28dc6eda9e39f28b22e7d2;hp=ca9c8b4ce5ea282bbfde9e8a3746f268919b493e;hpb=067277c389ff24af29f0ce9a1b31d7d002ae9fe8;p=pf3gnuchains%2Fgcc-fork.git
diff --git a/gcc/system.h b/gcc/system.h
index ca9c8b4ce5e..a8b4fa93558 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -1,13 +1,14 @@
/* Get common system includes and various definitions and declarations based
on autoconf macros.
- Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
+ 2009, 2010
Free Software Foundation, Inc.
This file is part of GCC.
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) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
@@ -16,9 +17,8 @@ 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 GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+. */
#ifndef GCC_SYSTEM_H
@@ -47,6 +47,9 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
#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)
@@ -227,6 +230,8 @@ extern int errno;
# endif
#endif
+#define ICE_EXIT_CODE 4
+
#ifdef HAVE_UNISTD_H
# include
#endif
@@ -252,7 +257,8 @@ extern int errno;
UPPER. However the bounds themselves can be either positive or
negative. */
#define IN_RANGE(VALUE, LOWER, UPPER) \
- ((unsigned HOST_WIDE_INT)((VALUE) - (LOWER)) <= ((UPPER) - (LOWER)))
+ ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
+ <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
/* Infrastructure for defining missing _MAX and _MIN macros. Note that
macros defined with these cannot be used in #if. */
@@ -408,6 +414,14 @@ extern void *calloc (size_t, size_t);
extern void *realloc (void *, size_t);
#endif
+#ifdef HAVE_STDINT_H
+#include
+#endif
+
+#ifdef HAVE_INTTYPES_H
+#include
+#endif
+
/* If the system doesn't provide strsignal, we get it defined in
libiberty but no declaration is supplied. */
#if !defined (HAVE_STRSIGNAL) \
@@ -450,7 +464,8 @@ extern int vsnprintf(char *, size_t, const char *, va_list);
/* 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 HAVE_SYS_STAT_H
@@ -511,6 +526,11 @@ extern int vsnprintf(char *, size_t, const char *, va_list);
# define mkdir(a,b) mkdir(a)
#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 ':'
@@ -573,14 +593,27 @@ 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,
@@ -609,7 +642,6 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
# define FALSE false
#endif /* !__cplusplus */
-
/* Some compilers do not allow the use of unsigned char in bitfields. */
#define BOOL_BITFIELD unsigned int
@@ -671,7 +703,7 @@ 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 \
@@ -680,7 +712,10 @@ 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
/* 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
@@ -728,10 +763,14 @@ 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
+ SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
+ 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
/* Hooks that are no longer used. */
#pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
@@ -739,7 +778,11 @@ 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
+
+/* Miscellaneous macros that are no longer used. */
+ #pragma GCC poison USE_MAPPED_LOCATION
/* Libiberty macros that are no longer used in GCC. */
#undef ANSI_PROTOTYPES
@@ -754,6 +797,12 @@ 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
@@ -764,4 +813,96 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
#endif /* GCC >= 3.0 */
+/* This macro allows casting away const-ness to pass -Wcast-qual
+ warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
+ only be used in certain specific cases. One valid case is where
+ the C standard definitions or prototypes force you to. E.g. if you
+ need to free a const object, or if you pass a const string to
+ execv, et al. Another valid use would be in an allocation function
+ that creates const objects that need to be initialized. In some
+ cases we have non-const functions that return the argument
+ (e.g. next_nonnote_insn). Rather than create const shadow
+ functions, we can cast away const-ness in calling these interfaces
+ if we're careful to verify that the called function does indeed not
+ modify its argument and the return value is only used in a const
+ context. (This can be somewhat dangerous as these assumptions can
+ change after the fact). Beyond these uses, most other cases of
+ using this macro should be viewed with extreme caution. */
+
+#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 certain diagnostics as warnings (not errors via the
+ -Werror flag). */
+#if GCC_VERSION >= 4003
+/* If asserts are disabled, activate -Wuninitialized as a warning (not
+ an error/-Werror). */
+#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 */