diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/errno.h | 2 | ||||
| -rw-r--r-- | include/libc-symbols.h | 68 | ||||
| -rw-r--r-- | include/math.h | 5 | ||||
| -rw-r--r-- | include/stdio.h | 7 | ||||
| -rw-r--r-- | include/stdlib.h | 4 | ||||
| -rw-r--r-- | include/string.h | 10 | ||||
| -rw-r--r-- | include/time.h | 4 | ||||
| -rw-r--r-- | include/unistd.h | 3 | ||||
| -rw-r--r-- | include/wchar.h | 2 |
9 files changed, 61 insertions, 44 deletions
diff --git a/include/errno.h b/include/errno.h index 7df41dfc31..73fc32e5e0 100644 --- a/include/errno.h +++ b/include/errno.h @@ -2,7 +2,7 @@ #include <stdlib/errno.h> -#if defined _ERRNO_H && !defined _ISOMAC && !defined __cplusplus +#if defined _ERRNO_H && !defined _ISOMAC # if IS_IN (rtld) # include <dl-sysdep.h> diff --git a/include/libc-symbols.h b/include/libc-symbols.h index 18f26b2e61..3310e3a678 100644 --- a/include/libc-symbols.h +++ b/include/libc-symbols.h @@ -20,26 +20,46 @@ #ifndef _LIBC_SYMBOLS_H #define _LIBC_SYMBOLS_H 1 -#define IN_MODULE PASTE_NAME (MODULE_, MODULE_NAME) -#define IS_IN(lib) (IN_MODULE == MODULE_##lib) +/* This file is included implicitly in the compilation of every source file, + using -include. It includes config.h. */ -/* Returns true if the current module is a versioned library. Versioned - library names culled from shlib-versions files are assigned a MODULE_* - value lower than MODULE_LIBS_BEGIN. */ -#define IS_IN_LIB (IN_MODULE > MODULE_LIBS_BEGIN) - -#define PASTE_NAME(a,b) PASTE_NAME1 (a,b) -#define PASTE_NAME1(a,b) a##b - -/* This file's macros are included implicitly in the compilation of every - file in the C library by -imacros. - - We include config.h which is generated by configure. - It should define for us the following symbol: +/* Enable declarations of GNU extensions, since we are compiling them. */ +#define _GNU_SOURCE 1 + +#ifdef MODULE_NAME + +/* Use `#if IS_IN (module)` to detect what component is being compiled. */ +#define PASTE_NAME1(a,b) a##b +#define PASTE_NAME(a,b) PASTE_NAME1 (a,b) +#define IN_MODULE PASTE_NAME (MODULE_, MODULE_NAME) +#define IS_IN(lib) (IN_MODULE == MODULE_##lib) + +/* True if the current module is a versioned library. Versioned + library names culled from shlib-versions files are assigned a + MODULE_* value greater than MODULE_LIBS_BEGIN. */ +#define IS_IN_LIB (IN_MODULE > MODULE_LIBS_BEGIN) + +/* The testsuite, and some other ancillary code, should be compiled against + as close an approximation to the installed headers as possible. + Defining this symbol disables most internal-use-only declarations + provided by this header, and all those provided by other internal + wrapper headers. */ +#if IS_IN (testsuite) || defined IS_IN_build || defined __cplusplus +# define _ISOMAC 1 +#endif - * HAVE_ASM_SET_DIRECTIVE if we have `.set B, A' instead of `A = B'. +#else +/* The generation process for a few files created very early in the + build (notably libc-modules.h itself) involves preprocessing this + header without defining MODULE_NAME. Under these conditions, + internal declarations (especially from config.h) must be visible, + but IS_IN should always evaluate as false. */ +# define IS_IN(lib) 0 +# define IS_IN_LIB 0 +# define IN_MODULE (-1) +#endif - */ +#ifndef _ISOMAC /* This is defined for the compilation of all C library code. features.h tests this to avoid inclusion of stubs.h while compiling the library, @@ -50,8 +70,17 @@ itself is being compiled, or just some generator program. */ #define _LIBC 1 -/* Enable declarations of GNU extensions, since we are compiling them. */ -#define _GNU_SOURCE 1 +/* Some files must be compiled with optimization on. */ +#if !defined __ASSEMBLER__ && !defined __OPTIMIZE__ +# error "glibc cannot be compiled without optimization" +#endif + +/* -ffast-math cannot be applied to the C library, as it alters the ABI. + Some test components that use -ffast-math are currently not part of + IS_IN (testsuite) for technical reasons, so we have a secondary override. */ +#if defined __FAST_MATH__ && !defined TEST_FAST_MATH +# error "glibc must not be compiled with -ffast-math" +#endif #include <config.h> @@ -936,4 +965,5 @@ for linking") # define _GL_ATTRIBUTE_CONST /* empty */ #endif +#endif /* !_ISOMAC */ #endif /* libc-symbols.h */ diff --git a/include/math.h b/include/math.h index a4f556263a..6ff67830f8 100644 --- a/include/math.h +++ b/include/math.h @@ -1,5 +1,10 @@ #ifndef _MATH_H +#ifdef _ISOMAC +# undef NO_LONG_DOUBLE +# undef _Mlong_double_ +#endif + #include <math/math.h> #ifndef _ISOMAC diff --git a/include/stdio.h b/include/stdio.h index 4e7cfa1be5..ed6593ba50 100644 --- a/include/stdio.h +++ b/include/stdio.h @@ -1,11 +1,10 @@ #ifndef _STDIO_H -# if defined __need_FILE || defined __need___FILE || defined _ISOMAC +# if defined _ISOMAC || defined __need_FILE || defined __need___FILE # include <libio/stdio.h> # else # include <libio/stdio.h> /* Now define the internal interfaces. */ -__BEGIN_DECLS extern int __fcloseall (void); extern int __snprintf (char *__restrict __s, size_t __maxlen, @@ -30,7 +29,6 @@ extern int __vsscanf (const char *__restrict __s, _G_va_list __arg) __attribute__ ((__format__ (__scanf__, 2, 0))); -# ifndef __cplusplus extern int __sprintf_chk (char *, int, size_t, const char *, ...) __THROW; extern int __snprintf_chk (char *, size_t, int, size_t, const char *, ...) __THROW; @@ -52,7 +50,6 @@ extern int __obstack_printf_chk (struct obstack *, int, const char *, ...) __THROW; extern int __obstack_vprintf_chk (struct obstack *, int, const char *, _G_va_list) __THROW; -# endif extern int __isoc99_fscanf (FILE *__restrict __stream, const char *__restrict __format, ...) __wur; @@ -186,7 +183,5 @@ libc_hidden_proto (__obstack_vprintf_chk) extern FILE * __fmemopen (void *buf, size_t len, const char *mode); libc_hidden_proto (__fmemopen) -__END_DECLS # endif - #endif diff --git a/include/stdlib.h b/include/stdlib.h index 929cead59a..c3ee680bd6 100644 --- a/include/stdlib.h +++ b/include/stdlib.h @@ -9,8 +9,6 @@ #if !defined _ISOMAC # include <sys/stat.h> -__BEGIN_DECLS - extern __typeof (strtol_l) __strtol_l; extern __typeof (strtoul_l) __strtoul_l; extern __typeof (strtoll_l) __strtoll_l; @@ -261,8 +259,6 @@ extern __typeof (unsetenv) unsetenv attribute_hidden; extern __typeof (__strtoul_internal) __strtoul_internal attribute_hidden; # endif -__END_DECLS - #endif #endif /* include/stdlib.h */ diff --git a/include/string.h b/include/string.h index f166de9c43..ce71674086 100644 --- a/include/string.h +++ b/include/string.h @@ -1,6 +1,8 @@ #ifndef _STRING_H -#if !defined _ISOMAC && !defined __cplusplus +#ifndef _ISOMAC +/* Some of these are defined as macros in the real string.h, so we must + prototype them before including it. */ #include <sys/types.h> extern void *__memccpy (void *__dest, const void *__src, @@ -46,16 +48,14 @@ extern void __bzero (void *__s, size_t __n) __THROW __nonnull ((1)); extern int __ffs (int __i) __attribute__ ((const)); extern char *__strerror_r (int __errnum, char *__buf, size_t __buflen); -#endif /* Get _STRING_ARCH_unaligned. */ #include <string_private.h> +#endif -/* Now the real definitions. We do this here since some of the functions - above are defined as macros in the headers. */ #include <string/string.h> -#if !defined _ISOMAC && !defined __cplusplus +#ifndef _ISOMAC extern __typeof (strcoll_l) __strcoll_l; extern __typeof (strxfrm_l) __strxfrm_l; extern __typeof (strcasecmp_l) __strcasecmp_l; diff --git a/include/time.h b/include/time.h index 6badf0e557..3a828e0420 100644 --- a/include/time.h +++ b/include/time.h @@ -4,8 +4,6 @@ #ifndef _ISOMAC # include <xlocale.h> -__BEGIN_DECLS - extern __typeof (strftime_l) __strftime_l; libc_hidden_proto (__strftime_l) extern __typeof (strptime_l) __strptime_l; @@ -104,7 +102,5 @@ extern double __difftime (time_t time1, time_t time0); actual clock ID. */ #define CLOCK_IDFIELD_SIZE 3 -__END_DECLS - #endif #endif diff --git a/include/unistd.h b/include/unistd.h index 0cdf06e513..5b2a4147dc 100644 --- a/include/unistd.h +++ b/include/unistd.h @@ -2,7 +2,6 @@ # include <posix/unistd.h> # ifndef _ISOMAC -__BEGIN_DECLS libc_hidden_proto (_exit, __noreturn__) rtld_hidden_proto (_exit, __noreturn__) @@ -190,7 +189,5 @@ extern int __getlogin_r_loginuid (char *name, size_t namesize) extern __typeof (__access) __access_noerrno attribute_hidden; # endif -__END_DECLS # endif - #endif diff --git a/include/wchar.h b/include/wchar.h index 6272130e24..e2579a176a 100644 --- a/include/wchar.h +++ b/include/wchar.h @@ -172,7 +172,6 @@ extern int __vfwprintf (__FILE *__restrict __s, const wchar_t *__restrict __format, __gnuc_va_list __arg) /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */; -#ifndef __cplusplus extern int __vfwprintf_chk (FILE *__restrict __s, int __flag, const wchar_t *__restrict __format, __gnuc_va_list __arg) @@ -184,7 +183,6 @@ extern int __vswprintf_chk (wchar_t *__restrict __s, size_t __n, /* __attribute__ ((__format__ (__wprintf__, 5, 0))) */; libc_hidden_proto (__vfwprintf_chk) libc_hidden_proto (__vswprintf_chk) -#endif extern int __isoc99_fwscanf (__FILE *__restrict __stream, const wchar_t *__restrict __format, ...); |