diff options
| -rw-r--r-- | Rules.mak | 5 | ||||
| -rw-r--r-- | include/libc-internal.h | 629 | ||||
| -rw-r--r-- | include/libc-symbols.h | 658 |
3 files changed, 661 insertions, 631 deletions
@@ -329,8 +329,9 @@ SSP_CFLAGS:=$(SSP_DISABLE_FLAGS) endif # Some nice CFLAGS to work with -CFLAGS:=$(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \ - -fno-builtin -nostdinc -D_LIBC -I$(top_builddir)include -I. +CFLAGS:=-include $(top_builddir)include/libc-symbols.h \ + $(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \ + -fno-builtin -nostdinc -I$(top_builddir)include -I. LDFLAGS_NOSTRIP:=$(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc diff --git a/include/libc-internal.h b/include/libc-internal.h index 21280e4af..244dd55d8 100644 --- a/include/libc-internal.h +++ b/include/libc-internal.h @@ -20,629 +20,6 @@ #define _LIBC_INTERNAL_H 1 #include <features.h> -#include <bits/uClibc_arch_features.h> - -#ifdef __UCLIBC_NO_UNDERSCORES__ -# define NO_UNDERSCORES -#else -# undef NO_UNDERSCORES -#endif - -#ifdef __UCLIBC_HAVE_ASM_SET_DIRECTIVE__ -# define HAVE_ASM_SET_DIRECTIVE -#else -# undef HAVE_ASM_SET_DIRECTIVE -#endif - -#ifdef __UCLIBC_ASM_GLOBAL_DIRECTIVE__ -# define ASM_GLOBAL_DIRECTIVE __UCLIBC_ASM_GLOBAL_DIRECTIVE__ -#else -# define ASM_GLOBAL_DIRECTIVE .global -#endif - -#ifdef __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__ -# define HAVE_ASM_WEAK_DIRECTIVE -#else -# undef HAVE_ASM_WEAK_DIRECTIVE -#endif - -#ifdef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__ -# define HAVE_ASM_WEAKEXT_DIRECTIVE -#else -# undef HAVE_ASM_WEAKEXT_DIRECTIVE -#endif - -#ifdef __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__ -# define HAVE_ASM_GLOBAL_DOT_NAME -#else -# undef HAVE_ASM_GLOBAL_DOT_NAME -#endif - -#if defined HAVE_ASM_WEAK_DIRECTIVE || defined HAVE_ASM_WEAKEXT_DIRECTIVE -# define HAVE_WEAK_SYMBOLS -#endif - -#undef C_SYMBOL_NAME -#ifndef C_SYMBOL_NAME -# ifdef NO_UNDERSCORES -# define C_SYMBOL_NAME(name) name -# else -# define C_SYMBOL_NAME(name) _##name -# endif -#endif - -#ifndef ASM_LINE_SEP -# define ASM_LINE_SEP ; -#endif - -#ifdef HAVE_ASM_GLOBAL_DOT_NAME -# ifndef C_SYMBOL_DOT_NAME -# if defined __GNUC__ && defined __GNUC_MINOR__ \ - && (__GNUC__ << 16) + __GNUC_MINOR__ >= (3 << 16) + 1 -# define C_SYMBOL_DOT_NAME(name) .name -# else -# define C_SYMBOL_DOT_NAME(name) .##name -# endif -# endif -#endif - -#ifndef __ASSEMBLER__ -/* GCC understands weak symbols and aliases; use its interface where - possible, instead of embedded assembly language. */ - -/* Define ALIASNAME as a strong alias for NAME. */ -# define strong_alias(name, aliasname) _strong_alias(name, aliasname) -# define _strong_alias(name, aliasname) \ - extern __typeof (name) aliasname __attribute__ ((alias (#name))); - -/* This comes between the return type and function name in - a function definition to make that definition weak. */ -# define weak_function __attribute__ ((weak)) -# define weak_const_function __attribute__ ((weak, __const__)) - -# ifdef HAVE_WEAK_SYMBOLS - -/* Define ALIASNAME as a weak alias for NAME. - If weak aliases are not available, this defines a strong alias. */ -# define weak_alias(name, aliasname) _weak_alias (name, aliasname) -# define _weak_alias(name, aliasname) \ - extern __typeof (name) aliasname __attribute__ ((weak, alias (#name))); - -/* Declare SYMBOL as weak undefined symbol (resolved to 0 if not defined). */ -# define weak_extern(symbol) _weak_extern (weak symbol) -# define _weak_extern(expr) _Pragma (#expr) - -# else - -# define weak_alias(name, aliasname) strong_alias(name, aliasname) -# define weak_extern(symbol) /* Nothing. */ - -# endif - -#else /* __ASSEMBLER__ */ - -# ifdef HAVE_ASM_SET_DIRECTIVE -# ifdef HAVE_ASM_GLOBAL_DOT_NAME -# define strong_alias(original, alias) \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) ASM_LINE_SEP \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ - .set C_SYMBOL_DOT_NAME (alias),C_SYMBOL_DOT_NAME (original) -# define strong_data_alias(original, alias) \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) -# else -# define strong_alias(original, alias) \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) -# define strong_data_alias(original, alias) strong_alias(original, alias) -# endif -# else -# ifdef HAVE_ASM_GLOBAL_DOT_NAME -# define strong_alias(original, alias) \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) ASM_LINE_SEP \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ - C_SYMBOL_DOT_NAME (alias) = C_SYMBOL_DOT_NAME (original) -# define strong_data_alias(original, alias) \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) -# else -# define strong_alias(original, alias) \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) -# define strong_data_alias(original, alias) strong_alias(original, alias) -# endif -# endif - -# ifdef HAVE_WEAK_SYMBOLS -# ifdef HAVE_ASM_WEAKEXT_DIRECTIVE -# ifdef HAVE_ASM_GLOBAL_DOT_NAME -# define weak_alias(original, alias) \ - .weakext C_SYMBOL_NAME (alias), C_SYMBOL_NAME (original) ASM_LINE_SEP \ - .weakext C_SYMBOL_DOT_NAME (alias), C_SYMBOL_DOT_NAME (original) -# else -# define weak_alias(original, alias) \ - .weakext C_SYMBOL_NAME (alias), C_SYMBOL_NAME (original) -# endif -# define weak_extern(symbol) \ - .weakext C_SYMBOL_NAME (symbol) - -# else /* ! HAVE_ASM_WEAKEXT_DIRECTIVE */ - -# ifdef HAVE_ASM_GLOBAL_DOT_NAME -# define weak_alias(original, alias) \ - .weak C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) ASM_LINE_SEP \ - .weak C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ - C_SYMBOL_DOT_NAME (alias) = C_SYMBOL_DOT_NAME (original) -# else -# define weak_alias(original, alias) \ - .weak C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) -# endif - -# define weak_extern(symbol) \ - .weak C_SYMBOL_NAME (symbol) - -# endif /* ! HAVE_ASM_WEAKEXT_DIRECTIVE */ - -# else /* ! HAVE_WEAK_SYMBOLS */ - -# define weak_alias(original, alias) strong_alias(original, alias) -# define weak_extern(symbol) /* Nothing */ -# endif /* ! HAVE_WEAK_SYMBOLS */ - -#endif /* __ASSEMBLER__ */ - -/* We want the .gnu.warning.SYMBOL section to be unallocated. */ -#define __make_section_unallocated(section_string) \ - asm (".section " section_string "\n\t.previous"); - -/* Tacking on "\n\t#" to the section name makes gcc put it's bogus - section attributes on what looks like a comment to the assembler. */ -#ifdef __sparc__ //HAVE_SECTION_QUOTES -# define __sec_comment "\"\n\t#\"" -#else -# define __sec_comment "\n\t#" -#endif - -/* When a reference to SYMBOL is encountered, the linker will emit a - warning message MSG. */ -#ifdef __cris__ -# define link_warning(symbol, msg) -#else -# define link_warning(symbol, msg) \ - __make_section_unallocated (".gnu.warning." #symbol) \ - static const char __evoke_link_warning_##symbol[] \ - __attribute__ ((used, section (".gnu.warning." #symbol __sec_comment))) \ - = msg; -#endif - -#ifndef weak_function -/* If we do not have the __attribute__ ((weak)) syntax, there is no way we - can define functions as weak symbols. The compiler will emit a `.globl' - directive for the function symbol, and a `.weak' directive in addition - will produce an error from the assembler. */ -# define weak_function /* empty */ -# define weak_const_function /* empty */ -#endif - -/* On some platforms we can make internal function calls (i.e., calls of - functions not exported) a bit faster by using a different calling - convention. */ -#ifndef internal_function -# define internal_function /* empty */ -#endif - -#ifndef NOT_IN_libc -# define IS_IN_libc 1 -#endif - -/* need this to unset defaults in libpthread for files that get added to libc */ -#ifdef IS_IN_libc -# undef NOT_IN_libc -#endif - -/* Prepare for the case that `__builtin_expect' is not available. */ -#if __GNUC__ == 2 && __GNUC_MINOR__ < 96 -# define __builtin_expect(x, expected_value) (x) -#endif -#ifndef likely -# define likely(x) __builtin_expect((!!(x)),1) -#endif -#ifndef unlikely -# define unlikely(x) __builtin_expect((!!(x)),0) -#endif -#ifndef __LINUX_COMPILER_H -# define __LINUX_COMPILER_H -#endif -#ifndef __cast__ -# define __cast__(_to) -#endif - -#define attribute_unused __attribute__ ((unused)) - -/* The following macros are used for PLT bypassing within libc.so - (and if needed other libraries similarly). - First of all, you need to have the function prototyped somewhere, - say in foo/foo.h: - - int foo (int __bar); - - If calls to foo within libc.so should always go to foo defined in libc.so, - then in include/foo.h you add: - - libc_hidden_proto (foo) - - line and after the foo function definition: - - int foo (int __bar) - { - return __bar; - } - libc_hidden_def (foo) - - or - - int foo (int __bar) - { - return __bar; - } - libc_hidden_weak (foo) - - Simularly for global data. If references to foo within libc.so should - always go to foo defined in libc.so, then in include/foo.h you add: - - libc_hidden_proto (foo) - - line and after foo's definition: - - int foo = INITIAL_FOO_VALUE; - libc_hidden_data_def (foo) - - or - - int foo = INITIAL_FOO_VALUE; - libc_hidden_data_weak (foo) - - If foo is normally just an alias (strong or weak) of some other function, - you should use the normal strong_alias first, then add libc_hidden_def - or libc_hidden_weak: - - int baz (int __bar) - { - return __bar; - } - strong_alias (baz, foo) - libc_hidden_weak (foo) - - If the function should be internal to multiple objects, say ld.so and - libc.so, the best way is to use: - - #if !defined NOT_IN_libc || defined IS_IN_rtld - hidden_proto (foo) - #endif - - in include/foo.h and the normal macros at all function definitions - depending on what DSO they belong to. - - If versioned_symbol macro is used to define foo, - libc_hidden_ver macro should be used, as in: - - int __real_foo (int __bar) - { - return __bar; - } - versioned_symbol (libc, __real_foo, foo, GLIBC_2_1); - libc_hidden_ver (__real_foo, foo) */ - -/* uClibc specific (the above comment was copied from glibc): - * a. when ppc64 will be supported, we need changes to support: - * strong_data_alias (used by asm hidden_data_def) / HAVE_ASM_GLOBAL_DOT_NAME - * b. libc_hidden_proto(foo) should be added after the header having foo's prototype - * or after extern foo... to all source files that should use the internal version - * of foo within libc, even to the file defining foo itself, libc_hidden_def does - * not hide __GI_foo itself, although the name suggests it (hiding is done exclusively - * by libc_hidden_proto). The reasoning to have it after the header w/ foo's prototype is - * to get first the __REDIRECT from original header and then create the __GI_foo alias - * c. no versioning support, hidden[_data]_ver are noop */ - -/* Arrange to hide uClibc internals */ -#if __GNUC_PREREQ (3, 3) -# define attribute_hidden __attribute__ ((visibility ("hidden"))) -# define __hidden_proto_hiddenattr(attrs...) __attribute__ ((visibility ("hidden"), ##attrs)) -#else -# define attribute_hidden -# define __hidden_proto_hiddenattr(attrs...) -#endif - -/* if ppc64 will be supported, this section needs adapting due to HAVE_ASM_GLOBAL_DOT_NAME */ -#if 1 /* SHARED */ -# ifndef __ASSEMBLER__ -# define hidden_strong_alias(name, aliasname) _hidden_strong_alias(name, aliasname) -# define _hidden_strong_alias(name, aliasname) \ - extern __typeof (name) aliasname __attribute__ ((alias (#name))) attribute_hidden; - -# define hidden_proto(name, attrs...) __hidden_proto (name, __GI_##name, ##attrs) -# define __hidden_proto(name, internal, attrs...) \ - extern __typeof (name) name __asm__ (__hidden_asmname (#internal)) \ - __hidden_proto_hiddenattr (attrs); -# define __hidden_asmname(name) __hidden_asmname1 (__USER_LABEL_PREFIX__, name) -# define __hidden_asmname1(prefix, name) __hidden_asmname2(prefix, name) -# define __hidden_asmname2(prefix, name) #prefix name -# define __hidden_ver1(local, internal, name) \ - extern __typeof (name) __EI_##name __asm__(__hidden_asmname (#internal)); \ - extern __typeof (name) __EI_##name __attribute__((alias (__hidden_asmname1 (,#local)))) -# define hidden_def(name) __hidden_ver1(__GI_##name, name, name); -# define hidden_data_def(name) hidden_def(name) -# define hidden_weak(name) __hidden_ver1(__GI_##name, name, name) __attribute__((weak)); -# define hidden_data_weak(name) hidden_weak(name) - -# else /* __ASSEMBLER__ */ -# ifdef HAVE_ASM_SET_DIRECTIVE -# ifdef HAVE_ASM_GLOBAL_DOT_NAME -# define hidden_strong_alias(original, alias) \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - .hidden C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) ASM_LINE_SEP \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ - .hidden C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ - .set C_SYMBOL_DOT_NAME (alias),C_SYMBOL_DOT_NAME (original) -# else -# define hidden_strong_alias(original, alias) \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - .hidden C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) -# endif -# else -# ifdef HAVE_ASM_GLOBAL_DOT_NAME -# define hidden_strong_alias(original, alias) \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - .hidden C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) ASM_LINE_SEP \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ - .hidden C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ - C_SYMBOL_DOT_NAME (alias) = C_SYMBOL_DOT_NAME (original) -# else -# define strong_alias(original, alias) \ - ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - .hidden C_SYMBOL_NAME (alias) ASM_LINE_SEP \ - C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) -# endif -# endif - -/* For assembly, we need to do the opposite of what we do in C: - in assembly gcc __REDIRECT stuff is not in place, so functions - are defined by its normal name and we need to create the - __GI_* alias to it, in C __REDIRECT causes the function definition - to use __GI_* name and we need to add alias to the real name. - There is no reason to use hidden_weak over hidden_def in assembly, - but we provide it for consistency with the C usage. - hidden_proto doesn't make sense for assembly but the equivalent - is to call via the HIDDEN_JUMPTARGET macro instead of JUMPTARGET. */ -# define hidden_def(name) hidden_strong_alias (name, __GI_##name) -# define hidden_data_def(name) hidden_strong_alias (name, __GI_##name) -# define hidden_weak(name) hidden_def (name) -# define hidden_data_weak(name) hidden_data_def (name) -# define HIDDEN_JUMPTARGET(name) __GI_##name -# endif /* __ASSEMBLER__ */ -#else /* SHARED */ -# define hidden_strong_alias(name, aliasname) - -# ifndef __ASSEMBLER__ -# define hidden_proto(name, attrs...) -# else -# define HIDDEN_JUMPTARGET(name) name -# endif -# define hidden_def(name) -# define hidden_data_def(name) -# define hidden_weak(name) -# define hidden_data_weak(name) -#endif /* SHARED */ - -/* uClibc does not support versioning yet. */ -#define versioned_symbol(lib, local, symbol, version) /* weak_alias(local, symbol) */ -#define hidden_ver(local, name) /* strong_alias(local, __GI_##name) */ -#define hidden_data_ver(local, name) /* strong_alias(local,__GI_##name) */ - -#if !defined NOT_IN_libc -# define libc_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define libc_hidden_def(name) hidden_def (name) -# define libc_hidden_weak(name) hidden_weak (name) -# define libc_hidden_ver(local, name) hidden_ver (local, name) -# define libc_hidden_data_def(name) hidden_data_def (name) -# define libc_hidden_data_weak(name) hidden_data_weak (name) -# define libc_hidden_data_ver(local, name) hidden_data_ver (local, name) -#else -# define libc_hidden_proto(name, attrs...) -# define libc_hidden_def(name) -# define libc_hidden_weak(name) -# define libc_hidden_ver(local, name) -# define libc_hidden_data_def(name) -# define libc_hidden_data_weak(name) -# define libc_hidden_data_ver(local, name) -#endif - -#if defined NOT_IN_libc && defined IS_IN_rtld -# define rtld_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define rtld_hidden_def(name) hidden_def (name) -# define rtld_hidden_weak(name) hidden_weak (name) -# define rtld_hidden_ver(local, name) hidden_ver (local, name) -# define rtld_hidden_data_def(name) hidden_data_def (name) -# define rtld_hidden_data_weak(name) hidden_data_weak (name) -# define rtld_hidden_data_ver(local, name) hidden_data_ver (local, name) -#else -# define rtld_hidden_proto(name, attrs...) -# define rtld_hidden_def(name) -# define rtld_hidden_weak(name) -# define rtld_hidden_ver(local, name) -# define rtld_hidden_data_def(name) -# define rtld_hidden_data_weak(name) -# define rtld_hidden_data_ver(local, name) -#endif - -#if defined NOT_IN_libc && defined IS_IN_libm -# define libm_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define libm_hidden_def(name) hidden_def (name) -# define libm_hidden_weak(name) hidden_weak (name) -# define libm_hidden_ver(local, name) hidden_ver (local, name) -# define libm_hidden_data_def(name) hidden_data_def (name) -# define libm_hidden_data_weak(name) hidden_data_weak (name) -# define libm_hidden_data_ver(local, name) hidden_data_ver (local, name) -#else -# define libm_hidden_proto(name, attrs...) -# define libm_hidden_def(name) -# define libm_hidden_weak(name) -# define libm_hidden_ver(local, name) -# define libm_hidden_data_def(name) -# define libm_hidden_data_weak(name) -# define libm_hidden_data_ver(local, name) -#endif - -#if defined NOT_IN_libc && defined IS_IN_libresolv -# define libresolv_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define libresolv_hidden_def(name) hidden_def (name) -# define libresolv_hidden_weak(name) hidden_weak (name) -# define libresolv_hidden_ver(local, name) hidden_ver (local, name) -# define libresolv_hidden_data_def(name) hidden_data_def (name) -# define libresolv_hidden_data_weak(name) hidden_data_weak (name) -# define libresolv_hidden_data_ver(local, name) hidden_data_ver (local, name) -#else -# define libresolv_hidden_proto(name, attrs...) -# define libresolv_hidden_def(name) -# define libresolv_hidden_weak(name) -# define libresolv_hidden_ver(local, name) -# define libresolv_hidden_data_def(name) -# define libresolv_hidden_data_weak(name) -# define libresolv_hidden_data_ver(local, name) -#endif - -#if defined NOT_IN_libc && defined IS_IN_librt -# define librt_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define librt_hidden_def(name) hidden_def (name) -# define librt_hidden_weak(name) hidden_weak (name) -# define librt_hidden_ver(local, name) hidden_ver (local, name) -# define librt_hidden_data_def(name) hidden_data_def (name) -# define librt_hidden_data_weak(name) hidden_data_weak (name) -# define librt_hidden_data_ver(local, name) hidden_data_ver (local, name) -#else -# define librt_hidden_proto(name, attrs...) -# define librt_hidden_def(name) -# define librt_hidden_weak(name) -# define librt_hidden_ver(local, name) -# define librt_hidden_data_def(name) -# define librt_hidden_data_weak(name) -# define librt_hidden_data_ver(local, name) -#endif - -#if defined NOT_IN_libc && defined IS_IN_libdl -# define libdl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define libdl_hidden_def(name) hidden_def (name) -# define libdl_hidden_weak(name) hidden_weak (name) -# define libdl_hidden_ver(local, name) hidden_ver (local, name) -# define libdl_hidden_data_def(name) hidden_data_def (name) -# define libdl_hidden_data_weak(name) hidden_data_weak (name) -# define libdl_hidden_data_ver(local, name) hidden_data_ver (local, name) -#else -# define libdl_hidden_proto(name, attrs...) -# define libdl_hidden_def(name) -# define libdl_hidden_weak(name) -# define libdl_hidden_ver(local, name) -# define libdl_hidden_data_def(name) -# define libdl_hidden_data_weak(name) -# define libdl_hidden_data_ver(local, name) -#endif - -#if defined NOT_IN_libc && defined IS_IN_libintl -# define libintl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define libintl_hidden_def(name) hidden_def (name) -# define libintl_hidden_weak(name) hidden_weak (name) -# define libintl_hidden_ver(local, name) hidden_ver (local, name) -# define libintl_hidden_data_def(name) hidden_data_def (name) -# define libintl_hidden_data_weak(name) hidden_data_weak (name) -# define libintl_hidden_data_ver(local, name) hidden_data_ver(local, name) -#else -# define libintl_hidden_proto(name, attrs...) -# define libintl_hidden_def(name) -# define libintl_hidden_weak(name) -# define libintl_hidden_ver(local, name) -# define libintl_hidden_data_def(name) -# define libintl_hidden_data_weak(name) -# define libintl_hidden_data_ver(local, name) -#endif - -#if defined NOT_IN_libc && defined IS_IN_libnsl -# define libnsl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define libnsl_hidden_def(name) hidden_def (name) -# define libnsl_hidden_weak(name) hidden_weak (name) -# define libnsl_hidden_ver(local, name) hidden_ver (local, name) -# define libnsl_hidden_data_def(name) hidden_data_def (name) -# define libnsl_hidden_data_weak(name) hidden_data_weak (name) -# define libnsl_hidden_data_ver(local, name) hidden_data_ver (local, name) -#else -# define libnsl_hidden_proto(name, attrs...) -# define libnsl_hidden_def(name) -# define libnsl_hidden_weak(name) -# define libnsl_hidden_ver(local, name) -# define libnsl_hidden_data_def(name) -# define libnsl_hidden_data_weak(name) -# define libnsl_hidden_data_ver(local, name) -#endif - -#if defined NOT_IN_libc && defined IS_IN_libutil -# define libutil_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define libutil_hidden_def(name) hidden_def (name) -# define libutil_hidden_weak(name) hidden_weak (name) -# define libutil_hidden_ver(local, name) hidden_ver (local, name) -# define libutil_hidden_data_def(name) hidden_data_def (name) -# define libutil_hidden_data_weak(name) hidden_data_weak (name) -# define libutil_hidden_data_ver(local, name) hidden_data_ver (local, name) -#else -# define libutil_hidden_proto(name, attrs...) -# define libutil_hidden_def(name) -# define libutil_hidden_weak(name) -# define libutil_hidden_ver(local, name) -# define libutil_hidden_data_def(name) -# define libutil_hidden_data_weak(name) -# define libutil_hidden_data_ver(local, name) -#endif - -#if defined NOT_IN_libc && defined IS_IN_libcrypt -# define libcrypt_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define libcrypt_hidden_def(name) hidden_def (name) -# define libcrypt_hidden_weak(name) hidden_weak (name) -# define libcrypt_hidden_ver(local, name) hidden_ver (local, name) -# define libcrypt_hidden_data_def(name) hidden_data_def (name) -# define libcrypt_hidden_data_weak(name) hidden_data_weak (name) -# define libcrypt_hidden_data_ver(local, name) hidden_data_ver (local, name) -#else -# define libcrypt_hidden_proto(name, attrs...) -# define libcrypt_hidden_def(name) -# define libcrypt_hidden_weak(name) -# define libcrypt_hidden_ver(local, name) -# define libcrypt_hidden_data_def(name) -# define libcrypt_hidden_data_weak(name) -# define libcrypt_hidden_data_ver(local, name) -#endif - -#if defined NOT_IN_libc && defined IS_IN_libpthread -# define libpthread_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) -# define libpthread_hidden_def(name) hidden_def (name) -# define libpthread_hidden_weak(name) hidden_weak (name) -# define libpthread_hidden_ver(local, name) hidden_ver (local, name) -# define libpthread_hidden_data_def(name) hidden_data_def (name) -# define libpthread_hidden_data_weak(name) hidden_data_weak (name) -# define libpthread_hidden_data_ver(local, name) hidden_data_ver (local, name) -#else -# define libpthread_hidden_proto(name, attrs...) -# define libpthread_hidden_def(name) -# define libpthread_hidden_weak(name) -# define libpthread_hidden_ver(local, name) -# define libpthread_hidden_data_def(name) -# define libpthread_hidden_data_weak(name) -# define libpthread_hidden_data_ver(local, name) -#endif #ifdef __UCLIBC_BUILD_RELRO__ # define attribute_relro __attribute__ ((section (".data.rel.ro"))) @@ -650,12 +27,6 @@ # define attribute_relro #endif -#ifdef __GNUC__ -# define attribute_noreturn __attribute__ ((__noreturn__)) -#else -# define attribute_noreturn -#endif - #ifdef __UCLIBC_HAS_THREADS_NATIVE__ # define attribute_tls_model_ie __attribute__ ((tls_model ("initial-exec"))) #endif diff --git a/include/libc-symbols.h b/include/libc-symbols.h new file mode 100644 index 000000000..45b7a084b --- /dev/null +++ b/include/libc-symbols.h @@ -0,0 +1,658 @@ +/* Copyright (C) 1991,92,93,95,96,97,98,99,2000,2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _LIBC_SYMBOLS_H +#define _LIBC_SYMBOLS_H 1 + +#include <bits/uClibc_arch_features.h> + +#define _LIBC 1 + +/* Enable declarations of GNU extensions, since we are compiling them. */ +/* #define _GNU_SOURCE 1 */ + +/* Prepare for the case that `__builtin_expect' is not available. */ +#if __GNUC__ == 2 && __GNUC_MINOR__ < 96 +# define __builtin_expect(x, expected_value) (x) +#endif +#ifndef likely +# define likely(x) __builtin_expect((!!(x)),1) +#endif +#ifndef unlikely +# define unlikely(x) __builtin_expect((!!(x)),0) +#endif +#ifndef __LINUX_COMPILER_H +# define __LINUX_COMPILER_H +#endif +#ifndef __cast__ +# define __cast__(_to) +#endif + +#define attribute_unused __attribute__ ((unused)) + +#ifdef __GNUC__ +# define attribute_noreturn __attribute__ ((__noreturn__)) +#else +# define attribute_noreturn +#endif + +#ifndef NOT_IN_libc +# define IS_IN_libc 1 +#endif + +/* need this to unset defaults in libpthread for files that get added to libc */ +#ifdef IS_IN_libc +# undef NOT_IN_libc +#endif + +#ifdef __UCLIBC_NO_UNDERSCORES__ +# define NO_UNDERSCORES +#else +# undef NO_UNDERSCORES +#endif + +#ifdef __UCLIBC_HAVE_ASM_SET_DIRECTIVE__ +# define HAVE_ASM_SET_DIRECTIVE +#else +# undef HAVE_ASM_SET_DIRECTIVE +#endif + +#ifdef __UCLIBC_ASM_GLOBAL_DIRECTIVE__ +# define ASM_GLOBAL_DIRECTIVE __UCLIBC_ASM_GLOBAL_DIRECTIVE__ +#else +# define ASM_GLOBAL_DIRECTIVE .global +#endif + +#ifdef __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__ +# define HAVE_ASM_WEAK_DIRECTIVE +#else +# undef HAVE_ASM_WEAK_DIRECTIVE +#endif + +#ifdef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__ +# define HAVE_ASM_WEAKEXT_DIRECTIVE +#else +# undef HAVE_ASM_WEAKEXT_DIRECTIVE +#endif + +#ifdef __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__ +# define HAVE_ASM_GLOBAL_DOT_NAME +#else +# undef HAVE_ASM_GLOBAL_DOT_NAME +#endif + +#if defined HAVE_ASM_WEAK_DIRECTIVE || defined HAVE_ASM_WEAKEXT_DIRECTIVE +# define HAVE_WEAK_SYMBOLS +#endif + +#undef C_SYMBOL_NAME +#ifndef C_SYMBOL_NAME +# ifdef NO_UNDERSCORES +# define C_SYMBOL_NAME(name) name +# else +# define C_SYMBOL_NAME(name) _##name +# endif +#endif + +#ifndef ASM_LINE_SEP +# define ASM_LINE_SEP ; +#endif + +#ifdef HAVE_ASM_GLOBAL_DOT_NAME +# ifndef C_SYMBOL_DOT_NAME +# if defined __GNUC__ && defined __GNUC_MINOR__ \ + && (__GNUC__ << 16) + __GNUC_MINOR__ >= (3 << 16) + 1 +# define C_SYMBOL_DOT_NAME(name) .name +# else +# define C_SYMBOL_DOT_NAME(name) .##name +# endif +# endif +#endif + +#ifndef __ASSEMBLER__ +/* GCC understands weak symbols and aliases; use its interface where + possible, instead of embedded assembly language. */ + +/* Define ALIASNAME as a strong alias for NAME. */ +# define strong_alias(name, aliasname) _strong_alias(name, aliasname) +# define _strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))); + +# ifdef HAVE_WEAK_SYMBOLS + +/* This comes between the return type and function name in + a function definition to make that definition weak. */ +# define weak_function __attribute__ ((weak)) +# define weak_const_function __attribute__ ((weak, __const__)) + +/* Define ALIASNAME as a weak alias for NAME. + If weak aliases are not available, this defines a strong alias. */ +# define weak_alias(name, aliasname) _weak_alias (name, aliasname) +# define _weak_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((weak, alias (#name))); + +/* Declare SYMBOL as weak undefined symbol (resolved to 0 if not defined). */ +# define weak_extern(symbol) _weak_extern (weak symbol) +# define _weak_extern(expr) _Pragma (#expr) + +# else + +# define weak_function /* empty */ +# define weak_const_function /* empty */ + +# define weak_alias(name, aliasname) strong_alias(name, aliasname) +# define weak_extern(symbol) /* Nothing. */ + +# endif + +#else /* __ASSEMBLER__ */ + +# ifdef HAVE_ASM_SET_DIRECTIVE +# ifdef HAVE_ASM_GLOBAL_DOT_NAME +# define strong_alias(original, alias) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) ASM_LINE_SEP \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ + .set C_SYMBOL_DOT_NAME (alias),C_SYMBOL_DOT_NAME (original) +# define strong_data_alias(original, alias) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) +# else +# define strong_alias(original, alias) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) +# define strong_data_alias(original, alias) strong_alias(original, alias) +# endif +# else +# ifdef HAVE_ASM_GLOBAL_DOT_NAME +# define strong_alias(original, alias) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) ASM_LINE_SEP \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ + C_SYMBOL_DOT_NAME (alias) = C_SYMBOL_DOT_NAME (original) +# define strong_data_alias(original, alias) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) +# else +# define strong_alias(original, alias) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) +# define strong_data_alias(original, alias) strong_alias(original, alias) +# endif +# endif + +# ifdef HAVE_WEAK_SYMBOLS +# ifdef HAVE_ASM_WEAKEXT_DIRECTIVE +# ifdef HAVE_ASM_GLOBAL_DOT_NAME +# define weak_alias(original, alias) \ + .weakext C_SYMBOL_NAME (alias), C_SYMBOL_NAME (original) ASM_LINE_SEP \ + .weakext C_SYMBOL_DOT_NAME (alias), C_SYMBOL_DOT_NAME (original) +# else +# define weak_alias(original, alias) \ + .weakext C_SYMBOL_NAME (alias), C_SYMBOL_NAME (original) +# endif +# define weak_extern(symbol) \ + .weakext C_SYMBOL_NAME (symbol) + +# else /* ! HAVE_ASM_WEAKEXT_DIRECTIVE */ + +# ifdef HAVE_ASM_GLOBAL_DOT_NAME +# define weak_alias(original, alias) \ + .weak C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) ASM_LINE_SEP \ + .weak C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ + C_SYMBOL_DOT_NAME (alias) = C_SYMBOL_DOT_NAME (original) +# else +# define weak_alias(original, alias) \ + .weak C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) +# endif + +# define weak_extern(symbol) \ + .weak C_SYMBOL_NAME (symbol) + +# endif /* ! HAVE_ASM_WEAKEXT_DIRECTIVE */ + +# else /* ! HAVE_WEAK_SYMBOLS */ + +# define weak_alias(original, alias) strong_alias(original, alias) +# define weak_extern(symbol) /* Nothing */ +# endif /* ! HAVE_WEAK_SYMBOLS */ + +#endif /* __ASSEMBLER__ */ + +/* On some platforms we can make internal function calls (i.e., calls of + functions not exported) a bit faster by using a different calling + convention. */ +#ifndef internal_function +# define internal_function /* empty */ +#endif + +/* We want the .gnu.warning.SYMBOL section to be unallocated. */ +#define __make_section_unallocated(section_string) \ + asm (".section " section_string "\n\t.previous"); + +/* Tacking on "\n\t#" to the section name makes gcc put it's bogus + section attributes on what looks like a comment to the assembler. */ +#ifdef __sparc__ //HAVE_SECTION_QUOTES +# define __sec_comment "\"\n\t#\"" +#else +# define __sec_comment "\n\t#" +#endif + +/* When a reference to SYMBOL is encountered, the linker will emit a + warning message MSG. */ +#ifdef __cris__ +# define link_warning(symbol, msg) +#else +# define link_warning(symbol, msg) \ + __make_section_unallocated (".gnu.warning." #symbol) \ + static const char __evoke_link_warning_##symbol[] \ + __attribute__ ((used, section (".gnu.warning." #symbol __sec_comment))) \ + = msg; +#endif + +/* A canned warning for sysdeps/stub functions. */ +#define stub_warning(name) \ + __make_section_unallocated (".gnu.uClibc-stub." #name) \ + link_warning (name, \ + "warning: " #name " is not implemented and will always fail") + +/* The following macros are used for PLT bypassing within libc.so + (and if needed other libraries similarly). + First of all, you need to have the function prototyped somewhere, + say in foo/foo.h: + + int foo (int __bar); + + If calls to foo within libc.so should always go to foo defined in libc.so, + then in include/foo.h you add: + + libc_hidden_proto (foo) + + line and after the foo function definition: + + int foo (int __bar) + { + return __bar; + } + libc_hidden_def (foo) + + or + + int foo (int __bar) + { + return __bar; + } + libc_hidden_weak (foo) + + Simularly for global data. If references to foo within libc.so should + always go to foo defined in libc.so, then in include/foo.h you add: + + libc_hidden_proto (foo) + + line and after foo's definition: + + int foo = INITIAL_FOO_VALUE; + libc_hidden_data_def (foo) + + or + + int foo = INITIAL_FOO_VALUE; + libc_hidden_data_weak (foo) + + If foo is normally just an alias (strong or weak) of some other function, + you should use the normal strong_alias first, then add libc_hidden_def + or libc_hidden_weak: + + int baz (int __bar) + { + return __bar; + } + strong_alias (baz, foo) + libc_hidden_weak (foo) + + If the function should be internal to multiple objects, say ld.so and + libc.so, the best way is to use: + + #if !defined NOT_IN_libc || defined IS_IN_rtld + hidden_proto (foo) + #endif + + in include/foo.h and the normal macros at all function definitions + depending on what DSO they belong to. + + If versioned_symbol macro is used to define foo, + libc_hidden_ver macro should be used, as in: + + int __real_foo (int __bar) + { + return __bar; + } + versioned_symbol (libc, __real_foo, foo, GLIBC_2_1); + libc_hidden_ver (__real_foo, foo) */ + +/* uClibc specific (the above comment was copied from glibc): + * a. when ppc64 will be supported, we need changes to support: + * strong_data_alias (used by asm hidden_data_def) + * b. libc_hidden_proto(foo) should be added after the header having foo's prototype + * or after extern foo... to all source files that should use the internal version + * of foo within libc, even to the file defining foo itself, libc_hidden_def does + * not hide __GI_foo itself, although the name suggests it (hiding is done exclusively + * by libc_hidden_proto). The reasoning to have it after the header w/ foo's prototype is + * to get first the __REDIRECT from original header and then create the __GI_foo alias + * c. no versioning support, hidden[_data]_ver are noop + * d. hidden_strong_alias() added, and hidden_def() in asm is hidden_strong_alias (not strong_alias) + +/* Arrange to hide uClibc internals */ +#if defined __GNUC__ && defined __GNUC_MINOR__ && \ + ( __GNUC__ >= 3 && __GNUC_MINOR__ >= 3 ) || __GNUC__ >= 4 +# define attribute_hidden __attribute__ ((visibility ("hidden"))) +# define __hidden_proto_hiddenattr(attrs...) __attribute__ ((visibility ("hidden"), ##attrs)) +#else +# define attribute_hidden +# define __hidden_proto_hiddenattr(attrs...) +#endif + +#if 1 /* SHARED */ +# ifndef __ASSEMBLER__ +# define hidden_strong_alias(name, aliasname) _hidden_strong_alias(name, aliasname) +# define _hidden_strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))) attribute_hidden; + +# define hidden_proto(name, attrs...) __hidden_proto (name, __GI_##name, ##attrs) +# define __hidden_proto(name, internal, attrs...) \ + extern __typeof (name) name __asm__ (__hidden_asmname (#internal)) \ + __hidden_proto_hiddenattr (attrs); +# define __hidden_asmname(name) __hidden_asmname1 (__USER_LABEL_PREFIX__, name) +# define __hidden_asmname1(prefix, name) __hidden_asmname2(prefix, name) +# define __hidden_asmname2(prefix, name) #prefix name +# define __hidden_ver1(local, internal, name) \ + extern __typeof (name) __EI_##name __asm__(__hidden_asmname (#internal)); \ + extern __typeof (name) __EI_##name __attribute__((alias (__hidden_asmname1 (,#local)))) +# define hidden_def(name) __hidden_ver1(__GI_##name, name, name); +# define hidden_data_def(name) hidden_def(name) +# define hidden_weak(name) __hidden_ver1(__GI_##name, name, name) __attribute__((weak)); +# define hidden_data_weak(name) hidden_weak(name) + +# else /* __ASSEMBLER__ */ +# ifdef HAVE_ASM_SET_DIRECTIVE +# ifdef HAVE_ASM_GLOBAL_DOT_NAME +# define hidden_strong_alias(original, alias) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + .hidden C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) ASM_LINE_SEP \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ + .hidden C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ + .set C_SYMBOL_DOT_NAME (alias),C_SYMBOL_DOT_NAME (original) +# else +# define hidden_strong_alias(original, alias) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + .hidden C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) +# endif +# else +# ifdef HAVE_ASM_GLOBAL_DOT_NAME +# define hidden_strong_alias(original, alias) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + .hidden C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) ASM_LINE_SEP \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ + .hidden C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP \ + C_SYMBOL_DOT_NAME (alias) = C_SYMBOL_DOT_NAME (original) +# else +# define strong_alias(original, alias) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + .hidden C_SYMBOL_NAME (alias) ASM_LINE_SEP \ + C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) +# endif +# endif + +/* For assembly, we need to do the opposite of what we do in C: + in assembly gcc __REDIRECT stuff is not in place, so functions + are defined by its normal name and we need to create the + __GI_* alias to it, in C __REDIRECT causes the function definition + to use __GI_* name and we need to add alias to the real name. + There is no reason to use hidden_weak over hidden_def in assembly, + but we provide it for consistency with the C usage. + hidden_proto doesn't make sense for assembly but the equivalent + is to call via the HIDDEN_JUMPTARGET macro instead of JUMPTARGET. */ +# define hidden_def(name) hidden_strong_alias (name, __GI_##name) +# define hidden_data_def(name) hidden_strong_alias (name, __GI_##name) +# define hidden_weak(name) hidden_def (name) +# define hidden_data_weak(name) hidden_data_def (name) +# define HIDDEN_JUMPTARGET(name) __GI_##name +# endif /* __ASSEMBLER__ */ +#else /* SHARED */ +# define hidden_strong_alias(name, aliasname) + +# ifndef __ASSEMBLER__ +# define hidden_proto(name, attrs...) +# else +# define HIDDEN_JUMPTARGET(name) name +# endif +# define hidden_def(name) +# define hidden_data_def(name) +# define hidden_weak(name) +# define hidden_data_weak(name) +#endif /* SHARED */ + +/* uClibc does not support versioning yet. */ +#define versioned_symbol(lib, local, symbol, version) /* weak_alias(local, symbol) */ +#define hidden_ver(local, name) /* strong_alias(local, __GI_##name) */ +#define hidden_data_ver(local, name) /* strong_alias(local,__GI_##name) */ + +#if !defined NOT_IN_libc +# define libc_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define libc_hidden_def(name) hidden_def (name) +# define libc_hidden_weak(name) hidden_weak (name) +# define libc_hidden_ver(local, name) hidden_ver (local, name) +# define libc_hidden_data_def(name) hidden_data_def (name) +# define libc_hidden_data_weak(name) hidden_data_weak (name) +# define libc_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define libc_hidden_proto(name, attrs...) +# define libc_hidden_def(name) +# define libc_hidden_weak(name) +# define libc_hidden_ver(local, name) +# define libc_hidden_data_def(name) +# define libc_hidden_data_weak(name) +# define libc_hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_rtld +# define rtld_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define rtld_hidden_def(name) hidden_def (name) +# define rtld_hidden_weak(name) hidden_weak (name) +# define rtld_hidden_ver(local, name) hidden_ver (local, name) +# define rtld_hidden_data_def(name) hidden_data_def (name) +# define rtld_hidden_data_weak(name) hidden_data_weak (name) +# define rtld_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define rtld_hidden_proto(name, attrs...) +# define rtld_hidden_def(name) +# define rtld_hidden_weak(name) +# define rtld_hidden_ver(local, name) +# define rtld_hidden_data_def(name) +# define rtld_hidden_data_weak(name) +# define rtld_hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_libm +# define libm_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define libm_hidden_def(name) hidden_def (name) +# define libm_hidden_weak(name) hidden_weak (name) +# define libm_hidden_ver(local, name) hidden_ver (local, name) +# define libm_hidden_data_def(name) hidden_data_def (name) +# define libm_hidden_data_weak(name) hidden_data_weak (name) +# define libm_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define libm_hidden_proto(name, attrs...) +# define libm_hidden_def(name) +# define libm_hidden_weak(name) +# define libm_hidden_ver(local, name) +# define libm_hidden_data_def(name) +# define libm_hidden_data_weak(name) +# define libm_hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_libresolv +# define libresolv_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define libresolv_hidden_def(name) hidden_def (name) +# define libresolv_hidden_weak(name) hidden_weak (name) +# define libresolv_hidden_ver(local, name) hidden_ver (local, name) +# define libresolv_hidden_data_def(name) hidden_data_def (name) +# define libresolv_hidden_data_weak(name) hidden_data_weak (name) +# define libresolv_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define libresolv_hidden_proto(name, attrs...) +# define libresolv_hidden_def(name) +# define libresolv_hidden_weak(name) +# define libresolv_hidden_ver(local, name) +# define libresolv_hidden_data_def(name) +# define libresolv_hidden_data_weak(name) +# define libresolv_hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_librt +# define librt_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define librt_hidden_def(name) hidden_def (name) +# define librt_hidden_weak(name) hidden_weak (name) +# define librt_hidden_ver(local, name) hidden_ver (local, name) +# define librt_hidden_data_def(name) hidden_data_def (name) +# define librt_hidden_data_weak(name) hidden_data_weak (name) +# define librt_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define librt_hidden_proto(name, attrs...) +# define librt_hidden_def(name) +# define librt_hidden_weak(name) +# define librt_hidden_ver(local, name) +# define librt_hidden_data_def(name) +# define librt_hidden_data_weak(name) +# define librt_hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_libdl +# define libdl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define libdl_hidden_def(name) hidden_def (name) +# define libdl_hidden_weak(name) hidden_weak (name) +# define libdl_hidden_ver(local, name) hidden_ver (local, name) +# define libdl_hidden_data_def(name) hidden_data_def (name) +# define libdl_hidden_data_weak(name) hidden_data_weak (name) +# define libdl_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define libdl_hidden_proto(name, attrs...) +# define libdl_hidden_def(name) +# define libdl_hidden_weak(name) +# define libdl_hidden_ver(local, name) +# define libdl_hidden_data_def(name) +# define libdl_hidden_data_weak(name) +# define libdl_hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_libintl +# define libintl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define libintl_hidden_def(name) hidden_def (name) +# define libintl_hidden_weak(name) hidden_weak (name) +# define libintl_hidden_ver(local, name) hidden_ver (local, name) +# define libintl_hidden_data_def(name) hidden_data_def (name) +# define libintl_hidden_data_weak(name) hidden_data_weak (name) +# define libintl_hidden_data_ver(local, name) hidden_data_ver(local, name) +#else +# define libintl_hidden_proto(name, attrs...) +# define libintl_hidden_def(name) +# define libintl_hidden_weak(name) +# define libintl_hidden_ver(local, name) +# define libintl_hidden_data_def(name) +# define libintl_hidden_data_weak(name) +# define libintl_hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_libnsl +# define libnsl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define libnsl_hidden_def(name) hidden_def (name) +# define libnsl_hidden_weak(name) hidden_weak (name) +# define libnsl_hidden_ver(local, name) hidden_ver (local, name) +# define libnsl_hidden_data_def(name) hidden_data_def (name) +# define libnsl_hidden_data_weak(name) hidden_data_weak (name) +# define libnsl_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define libnsl_hidden_proto(name, attrs...) +# define libnsl_hidden_def(name) +# define libnsl_hidden_weak(name) +# define libnsl_hidden_ver(local, name) +# define libnsl_hidden_data_def(name) +# define libnsl_hidden_data_weak(name) +# define libnsl_hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_libutil +# define libutil_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define libutil_hidden_def(name) hidden_def (name) +# define libutil_hidden_weak(name) hidden_weak (name) +# define libutil_hidden_ver(local, name) hidden_ver (local, name) +# define libutil_hidden_data_def(name) hidden_data_def (name) +# define libutil_hidden_data_weak(name) hidden_data_weak (name) +# define libutil_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define libutil_hidden_proto(name, attrs...) +# define libutil_hidden_def(name) +# define libutil_hidden_weak(name) +# define libutil_hidden_ver(local, name) +# define libutil_hidden_data_def(name) +# define libutil_hidden_data_weak(name) +# define libutil_hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_libcrypt +# define libcrypt_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define libcrypt_hidden_def(name) hidden_def (name) +# define libcrypt_hidden_weak(name) hidden_weak (name) +# define libcrypt_hidden_ver(local, name) hidden_ver (local, name) +# define libcrypt_hidden_data_def(name) hidden_data_def (name) +# define libcrypt_hidden_data_weak(name) hidden_data_weak (name) +# define libcrypt_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define libcrypt_hidden_proto(name, attrs...) +# define libcrypt_hidden_def(name) +# define libcrypt_hidden_weak(name) +# define libcrypt_hidden_ver(local, name) +# define libcrypt_hidden_data_def(name) +# define libcrypt_hidden_data_weak(name) +# define libcrypt_hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_libpthread +# define libpthread_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define libpthread_hidden_def(name) hidden_def (name) +# define libpthread_hidden_weak(name) hidden_weak (name) +# define libpthread_hidden_ver(local, name) hidden_ver (local, name) +# define libpthread_hidden_data_def(name) hidden_data_def (name) +# define libpthread_hidden_data_weak(name) hidden_data_weak (name) +# define libpthread_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define libpthread_hidden_proto(name, attrs...) +# define libpthread_hidden_def(name) +# define libpthread_hidden_weak(name) +# define libpthread_hidden_ver(local, name) +# define libpthread_hidden_data_def(name) +# define libpthread_hidden_data_weak(name) +# define libpthread_hidden_data_ver(local, name) +#endif + +#endif /* _LIBC_SYMBOLS_H */ |