diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/libc-internal.h | 612 |
1 files changed, 356 insertions, 256 deletions
diff --git a/include/libc-internal.h b/include/libc-internal.h index 9ade7e2ab..feb329323 100644 --- a/include/libc-internal.h +++ b/include/libc-internal.h @@ -119,6 +119,11 @@ # 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) @@ -138,306 +143,401 @@ #define attribute_unused __attribute__ ((unused)) -/* Arrange to hide uClibc internals */ -#if __GNUC_PREREQ (3, 3) -# define attribute_hidden __attribute__ ((visibility ("hidden"))) -#else -# define attribute_hidden -#endif +/* 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: -#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; + int foo (int __bar); -# define hidden_weak_alias(name, aliasname) _hidden_weak_alias (name, aliasname) -# define _hidden_weak_alias(name, aliasname) \ - extern __typeof (name) aliasname __attribute__ ((weak, alias (#name))) attribute_hidden; -#else /* __ASSEMBLER__ */ -# define hidden_strong_alias(name, aliasname) \ - .global C_SYMBOL_NAME (aliasname) ; \ - .hidden C_SYMBOL_NAME (aliasname) ; \ - .set C_SYMBOL_NAME(aliasname),C_SYMBOL_NAME(name) + If calls to foo within libc.so should always go to foo defined in libc.so, + then in include/foo.h you add: -# define hidden_weak_alias(name, aliasname) \ - .weak C_SYMBOL_NAME(aliasname) ; \ - .hidden C_SYMBOL_NAME(aliasname) ; \ - C_SYMBOL_NAME(aliasname) = C_SYMBOL_NAME(name) -#endif /* __ASSEMBLER__ */ + libc_hidden_proto (foo) -#ifdef __UCLIBC_BUILD_RELRO__ -# define attribute_relro __attribute__ ((section (".data.rel.ro"))) -#else -# define attribute_relro -#endif + line and after the foo function definition: -#ifdef __GNUC__ -# define attribute_noreturn __attribute__ ((__noreturn__)) -#else -# define attribute_noreturn -#endif + int foo (int __bar) + { + return __bar; + } + libc_hidden_def (foo) -#ifdef __UCLIBC_HAS_THREADS_NATIVE__ -# define attribute_tls_model_ie __attribute__ ((tls_model ("initial-exec"))) -#endif + or -/* Pull in things like __attribute_used__ */ -#include <sys/cdefs.h> + int foo (int __bar) + { + return __bar; + } + libc_hidden_weak (foo) -/* --- this is added to integrate linuxthreads */ -#define __USE_UNIX98 1 + 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: -#ifndef __ASSEMBLER__ -# ifdef IS_IN_libc + libc_hidden_proto (foo) -# define __UC(N) __ ## N -# define __UC_ALIAS(N) strong_alias( __ ## N , N ) -# if defined __UCLIBC_HAS_XLOCALE__ && defined __UCLIBC_DO_XLOCALE -# define __UCXL(N) __ ## N ## _l -# define __UCXL_ALIAS(N) strong_alias ( __ ## N ## _l , N ## _l ) -# else -# define __UCXL(N) __UC(N) -# define __UCXL_ALIAS(N) __UC_ALIAS(N) -# endif + line and after foo's definition: -# define __need_size_t -# ifdef __UCLIBC_HAS_WCHAR__ -# define __need_wchar_t -# define __need_wint_t -# endif -# include <stddef.h> + int foo = INITIAL_FOO_VALUE; + libc_hidden_data_def (foo) -# include <bits/types.h> + or -# ifndef __ssize_t_defined -typedef __ssize_t ssize_t; -# define __ssize_t_defined -# endif + int foo = INITIAL_FOO_VALUE; + libc_hidden_data_weak (foo) -# include <bits/sigset.h> + 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: -/* prototypes for internal use, please keep these in sync w/ updated headers */ -/* #include <fcntl.h> */ -#ifndef __USE_FILE_OFFSET64 -extern int __open (__const char *__file, int __oflag, ...) __nonnull ((1)) attribute_hidden; -extern int __fcntl (int __fd, int __cmd, ...) attribute_hidden; -#else -# ifdef __REDIRECT -extern int __REDIRECT (__open, (__const char *__file, int __oflag, ...), __open64) - __nonnull ((1)) attribute_hidden; -extern int __REDIRECT (__fcntl, (int __fd, int __cmd, ...), __fcntl64) attribute_hidden; -# else -# define __open __open64 -# define __fcntl __fcntl64 -# endif -#endif -#ifdef __USE_LARGEFILE64 -extern int __open64 (__const char *__file, int __oflag, ...) __nonnull ((1)) attribute_hidden; -extern int __fcntl64 (int __fd, int __cmd, ...) attribute_hidden; -#endif + int baz (int __bar) + { + return __bar; + } + strong_alias (baz, foo) + libc_hidden_weak (foo) -/* #include <string.h> */ -extern int __memcmp (__const void *__s1, __const void *__s2, size_t __n) attribute_hidden; -extern void *__memcpy (void *__restrict __dest, - __const void *__restrict __src, size_t __n) attribute_hidden; -extern void *__memmove (void *__dest, __const void *__src, size_t __n) attribute_hidden; -extern void *__memset (void *__s, int __c, size_t __n) attribute_hidden; -extern char *__strcpy (char *__restrict __dest, __const char *__restrict __src) attribute_hidden; -extern size_t __strlen (__const char *__s) attribute_hidden; -extern int __strcmp (__const char *__s1, __const char *__s2) attribute_hidden; -extern char *__strcat (char *__restrict __dest, __const char *__restrict __src) attribute_hidden; -extern char *__strncpy (char *__restrict __dest, - __const char *__restrict __src, size_t __n) attribute_hidden; -extern char *__strchr (__const char *__s, int __c) attribute_hidden; -extern char *__strrchr (__const char *__s, int __c) attribute_hidden; -extern int __strncmp (__const char *__s1, __const char *__s2, size_t __n) attribute_hidden; -extern char *__strdup (__const char *__s) attribute_hidden; -extern int __strcasecmp (__const char *__s1, __const char *__s2) attribute_hidden; -extern int __strncasecmp (__const char *__s1, __const char *__s2, size_t __n) attribute_hidden; -extern void *__rawmemchr (__const void *__s, int __c) __THROW __attribute_pure__ __nonnull ((1)) attribute_hidden; -extern size_t __strspn (__const char *__s, __const char *__accept) - __THROW __attribute_pure__ __nonnull ((1, 2)) attribute_hidden; -extern char *__strpbrk (__const char *__s, __const char *__accept) - __THROW __attribute_pure__ __nonnull ((1, 2)) attribute_hidden; -extern size_t __strnlen (__const char *__string, size_t __maxlen) - __THROW __attribute_pure__ __nonnull ((1)) attribute_hidden; -extern char *__strtok_r (char *__restrict __s, __const char *__restrict __delim, - char **__restrict __save_ptr) __THROW __nonnull ((2, 3)) attribute_hidden; + If the function should be internal to multiple objects, say ld.so and + libc.so, the best way is to use: -/* sources are built w/ _GNU_SOURCE, this gets undefined */ -extern int __xpg_strerror_r_internal (int __errnum, char *__buf, size_t __buflen) attribute_hidden; -extern char *__glibc_strerror_r_internal (int __errnum, char *__buf, size_t __buflen) attribute_hidden; - -/* ctype.h */ -extern int __tolower (int __c) __THROW attribute_hidden; -extern int __toupper (int __c) __THROW attribute_hidden; - -#ifdef __UCLIBC_HAS_WCHAR__ -/* wchar.h */ -extern size_t __wcslen (__const wchar_t *__s) __THROW __attribute_pure__ attribute_hidden; -extern wchar_t *__wcscpy (wchar_t *__restrict __dest, __const wchar_t *__restrict __src) __THROW attribute_hidden; -extern size_t __wcsspn (__const wchar_t *__wcs, __const wchar_t *__accept) - __THROW __attribute_pure__ attribute_hidden; -extern wchar_t *__wcspbrk (__const wchar_t *__wcs, __const wchar_t *__accept) - __THROW __attribute_pure__ attribute_hidden; -/* wctype.h */ -extern wint_t __towlower (wint_t __wc) __THROW attribute_hidden; -#endif + #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: -/* #include <unistd.h> */ -extern ssize_t __read(int __fd, void *__buf, size_t __nbytes) attribute_hidden; -extern ssize_t __write(int __fd, __const void *__buf, size_t __n) attribute_hidden; -extern int __close(int __fd) attribute_hidden; -extern __pid_t __getpid (void) attribute_hidden; -extern void _exit_internal (int __status) __attribute__ ((__noreturn__)) attribute_hidden; -#ifndef __USE_FILE_OFFSET64 -extern int __lockf (int __fd, int __cmd, __off_t __len) attribute_hidden; -extern __off_t __lseek (int __fd, __off_t __offset, int __whence) __THROW attribute_hidden; + 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 -# ifdef __REDIRECT -extern int __REDIRECT (__lockf, (int __fd, int __cmd, __off64_t __len), - __lockf64) attribute_hidden; -extern __off64_t __REDIRECT (__lseek, - (int __fd, __off64_t __offset, int __whence), - __lseek64) attribute_hidden; +# 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_weak_alias(name, aliasname) _hidden_weak_alias (name, aliasname) +# define _hidden_weak_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((weak, 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_asmname (#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__ */ +# define hidden_strong_alias(name, aliasname) \ + .global C_SYMBOL_NAME (aliasname) ; \ + .hidden C_SYMBOL_NAME (aliasname) ; \ + .set C_SYMBOL_NAME(aliasname),C_SYMBOL_NAME(name) + +# define hidden_weak_alias(name, aliasname) \ + .weak C_SYMBOL_NAME(aliasname) ; \ + .hidden C_SYMBOL_NAME(aliasname) ; \ + C_SYMBOL_NAME(aliasname) = C_SYMBOL_NAME(name) + +/* 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) +# define hidden_weak_alias(name, aliasname) + +# ifndef __ASSEMBLER__ +# define hidden_proto(name, attrs...) # else -# define __lockf __lockf64 -# define __lseek __lseek64 +# 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 -#ifdef __USE_LARGEFILE64 -extern int __lockf64 (int __fd, int __cmd, __off64_t __len) attribute_hidden; -extern __off64_t __lseek64 (int __fd, __off64_t __offset, int __whence) __THROW attribute_hidden; + +#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 -/* #include <stdio.h> */ -extern void __perror (__const char *__s) attribute_hidden; -extern int __printf (__const char *__restrict __format, ...) attribute_hidden; -extern int __sprintf (char *__restrict __s, - __const char *__restrict __format, ...) attribute_hidden; - -/* hack */ -#define abort __abort -#define fprintf __fprintf -#define fclose __fclose -#ifndef __USE_FILE_OFFSET64 -#define fopen __fopen +#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 fopen __fopen64 +# 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 -#ifdef __USE_LARGEFILE64 -#define fopen64 __fopen64 + +#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 -/* #include <stdlib.h> */ -extern char *__getenv (__const char *__name) attribute_hidden; -extern void __exit (int __status) __THROW __attribute__ ((__noreturn__)) attribute_hidden; +#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 -/* #include <signal.h> */ -extern int __sigprocmask (int __how, __const __sigset_t *__restrict __set, - __sigset_t *__restrict __oset) attribute_hidden; +#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 -/* #include <sys/ioctl.h> */ -extern int __ioctl (int __fd, unsigned long int __request, ...) attribute_hidden; +#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 -/* #include <sys/socket.h> */ -extern int __socket (int __domain, int __type, int __protocol) attribute_hidden; +#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 -/* #include <sys/stat.h> */ -#ifndef __USE_FILE_OFFSET64 -struct stat; -extern int __stat (__const char *__restrict __file, - struct stat *__restrict __buf) __THROW __nonnull ((1, 2)) attribute_hidden; -extern int __fstat (int __fd, struct stat *__buf) __THROW __nonnull ((2)) attribute_hidden; -extern int __lstat (__const char *__restrict __file, - struct stat *__restrict __buf) __THROW __nonnull ((1, 2)) attribute_hidden; +#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 -# ifdef __REDIRECT_NTH -extern int __REDIRECT_NTH (__stat, (__const char *__restrict __file, - struct stat *__restrict __buf), __stat64) - __nonnull ((1, 2)) attribute_hidden; -extern int __REDIRECT_NTH (__fstat, (int __fd, struct stat *__buf), __fstat64) - __nonnull ((2)) attribute_hidden; -extern int __REDIRECT_NTH (__lstat, - (__const char *__restrict __file, - struct stat *__restrict __buf), __lstat64) - __nonnull ((1, 2)) attribute_hidden; -# else -# define __stat __stat64 -# define __fstat __fstat64 -# define __lstat __lstat64 -# endif +# 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 -#ifdef __USE_LARGEFILE64 -struct stat64; -extern int __stat64 (__const char *__restrict __file, - struct stat64 *__restrict __buf) __THROW __nonnull ((1, 2)) attribute_hidden; -extern int __fstat64 (int __fd, struct stat64 *__buf) __THROW __nonnull ((2)) attribute_hidden; -extern int __lstat64 (__const char *__restrict __file, - struct stat64 *__restrict __buf) - __THROW __nonnull ((1, 2)) attribute_hidden; + +#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 -/* #include <sys/statfs.h> */ -#ifndef __USE_FILE_OFFSET64 -struct statfs; -extern int __statfs (__const char *__file, struct statfs *__buf) - __THROW __nonnull ((1, 2)) attribute_hidden; -extern int __fstatfs (int __fildes, struct statfs *__buf) - __THROW __nonnull ((2)) attribute_hidden; +#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 -# ifdef __REDIRECT -extern int __REDIRECT (__statfs, - (__const char *__file, struct statfs *__buf), - __statfs64) __nonnull ((1, 2)) attribute_hidden; -extern int __REDIRECT (__fstatfs, (int __fildes, struct statfs *__buf), - __fstatfs64) __nonnull ((2)) attribute_hidden; -# else -# define __statfs __statfs64 -# endif +# 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 __USE_LARGEFILE64 -struct statfs64; -extern int __statfs64 (__const char *__file, struct statfs64 *__buf) - __THROW __nonnull ((1, 2)) attribute_hidden; -extern int __fstatfs64 (int __fildes, struct statfs64 *__buf) - __THROW __nonnull ((2)) attribute_hidden; + +#ifdef __UCLIBC_BUILD_RELRO__ +# define attribute_relro __attribute__ ((section (".data.rel.ro"))) +#else +# define attribute_relro #endif -# if 0 /* undoable here */ -/* #include <dirent.h> */ -typedef struct __dirstream DIR; -extern DIR *__opendir (__const char *__name) attribute_hidden; -extern int __closedir (DIR *__dirp) attribute_hidden; - -/* #include <stdio.h> */ -extern int __vfprintf (FILE *__restrict __s, __const char *__restrict __format, - __gnuc_va_list __arg) attribute_hidden; -extern int __fprintf (FILE *__restrict __stream, - __const char *__restrict __format, ...) attribute_hidden; -extern int __fclose (FILE *__stream) attribute_hidden; - -#ifndef __USE_FILE_OFFSET64 -extern FILE *__fopen (__const char *__restrict __filename, - __const char *__restrict __modes) attribute_hidden; +#ifdef __GNUC__ +# define attribute_noreturn __attribute__ ((__noreturn__)) #else -# ifdef __REDIRECT -extern FILE *__REDIRECT (__fopen, (__const char *__restrict __filename, - __const char *__restrict __modes), __fopen64) attribute_hidden; -# else -# define __fopen __fopen64 -# endif +# define attribute_noreturn #endif -#ifdef __USE_LARGEFILE64 -extern FILE *__fopen64 (__const char *__restrict __filename, - __const char *__restrict __modes) attribute_hidden; + +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ +# define attribute_tls_model_ie __attribute__ ((tls_model ("initial-exec"))) #endif -/* #include <sys/time.h> */ -# define __need_timeval -# include <bits/time.h> -extern int __gettimeofday(struct timeval *__restrict __tv, *__restrict __timezone__ptr_t __tz) attribute_hidden; -# endif +/* Pull in things like __attribute_used__ */ +#include <sys/cdefs.h> + +/* --- this is added to integrate linuxthreads */ +#define __USE_UNIX98 1 + +#ifndef __ASSEMBLER__ +# ifdef IS_IN_libc + +# define __need_size_t +# include <stddef.h> + +/* sources are built w/ _GNU_SOURCE, this gets undefined */ +extern int __xpg_strerror_r (int __errnum, char *__buf, size_t __buflen); +//extern char *__glibc_strerror_r (int __errnum, char *__buf, size_t __buflen); /* #include <pthread.h> */ # ifndef __UCLIBC_HAS_THREADS__ |