summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--Rules.mak5
-rw-r--r--include/libc-internal.h629
-rw-r--r--include/libc-symbols.h658
3 files changed, 661 insertions, 631 deletions
diff --git a/Rules.mak b/Rules.mak
index 590eed289..531e925f4 100644
--- a/Rules.mak
+++ b/Rules.mak
@@ -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 */