diff options
Diffstat (limited to 'libc/include/sys/cdefs.h')
| -rw-r--r-- | libc/include/sys/cdefs.h | 103 |
1 files changed, 32 insertions, 71 deletions
diff --git a/libc/include/sys/cdefs.h b/libc/include/sys/cdefs.h index 9a8dfdd..504e439 100644 --- a/libc/include/sys/cdefs.h +++ b/libc/include/sys/cdefs.h @@ -53,6 +53,9 @@ #ifndef __has_builtin #define __has_builtin(x) 0 #endif +#ifndef __has_attribute +#define __has_attribute(x) 0 +#endif /* @@ -267,20 +270,6 @@ #endif /* NO_KERNEL_RCSIDS */ #endif /* _KERNEL */ -#if !defined(_STANDALONE) && !defined(_KERNEL) -#ifdef __GNUC__ -#define __RENAME(x) ___RENAME(x) -#else -#ifdef __lint__ -#define __RENAME(x) __symbolrename(x) -#else -#error "No function renaming possible" -#endif /* __lint__ */ -#endif /* __GNUC__ */ -#else /* _STANDALONE || _KERNEL */ -#define __RENAME(x) no renaming in kernel or standalone environment -#endif - /* * A barrier to stop the optimizer from moving code or assume live * register values. This is gcc specific, the version is more or less @@ -359,60 +348,15 @@ #endif /* - * Macros for manipulating "link sets". Link sets are arrays of pointers - * to objects, which are gathered up by the linker. - * - * Object format-specific code has provided us with the following macros: - * - * __link_set_add_text(set, sym) - * Add a reference to the .text symbol `sym' to `set'. - * - * __link_set_add_rodata(set, sym) - * Add a reference to the .rodata symbol `sym' to `set'. - * - * __link_set_add_data(set, sym) - * Add a reference to the .data symbol `sym' to `set'. - * - * __link_set_add_bss(set, sym) - * Add a reference to the .bss symbol `sym' to `set'. - * - * __link_set_decl(set, ptype) - * Provide an extern declaration of the set `set', which - * contains an array of the pointer type `ptype'. This - * macro must be used by any code which wishes to reference - * the elements of a link set. - * - * __link_set_start(set) - * This points to the first slot in the link set. - * - * __link_set_end(set) - * This points to the (non-existent) slot after the last - * entry in the link set. - * - * __link_set_count(set) - * Count the number of entries in link set `set'. - * - * In addition, we provide the following macros for accessing link sets: - * - * __link_set_foreach(pvar, set) - * Iterate over the link set `set'. Because a link set is - * an array of pointers, pvar must be declared as "type **pvar", - * and the actual entry accessed as "*pvar". - * - * __link_set_entry(set, idx) - * Access the link set entry at index `idx' from set `set'. - */ -#define __link_set_foreach(pvar, set) \ - for (pvar = __link_set_start(set); pvar < __link_set_end(set); pvar++) - -#define __link_set_entry(set, idx) (__link_set_begin(set)[idx]) - -/* - * Some of the FreeBSD sources used in Bionic need this. - * Originally, this is used to embed the rcs versions of each source file - * in the generated binary. We certainly don't want this in Bionic. + * Some BSD source needs these macros. + * Originally they embedded the rcs versions of each source file + * in the generated binary. We strip strings during build anyway,. */ -#define __FBSDID(s) /* nothing */ +#define __IDSTRING(_prefix,_s) /* nothing */ +#define __COPYRIGHT(_s) /* nothing */ +#define __FBSDID(_s) /* nothing */ +#define __RCSID(_s) /* nothing */ +#define __SCCSID(_s) /* nothing */ /*- * The following definitions are an extension of the behavior originally @@ -570,11 +514,28 @@ #endif #define __bos0(s) __builtin_object_size((s), 0) -#define __BIONIC_FORTIFY_INLINE \ - extern __inline__ \ - __attribute__ ((always_inline)) \ - __attribute__ ((gnu_inline)) +#if __GNUC_PREREQ(4,3) || __has_attribute(__artificial__) +#define __BIONIC_FORTIFY_INLINE extern __inline__ __always_inline __attribute__((gnu_inline)) __attribute__((__artificial__)) +#else +#define __BIONIC_FORTIFY_INLINE extern __inline__ __always_inline __attribute__((gnu_inline)) +#endif #endif #define __BIONIC_FORTIFY_UNKNOWN_SIZE ((size_t) -1) +/* Used to tag non-static symbols that are private and never exposed by the shared library. */ +#define __LIBC_HIDDEN__ __attribute__((visibility("hidden"))) + +/* Like __LIBC_HIDDEN__, but preserves binary compatibility for LP32. */ +#ifdef __LP64__ +#define __LIBC64_HIDDEN__ __LIBC_HIDDEN__ +#else +#define __LIBC64_HIDDEN__ __LIBC_ABI_PUBLIC__ +#endif + +/* Used to tag non-static symbols that are public and exposed by the shared library. */ +#define __LIBC_ABI_PUBLIC__ __attribute__((visibility ("default"))) + +/* Used to rename functions so that the compiler emits a call to 'x' rather than the function this was applied to. */ +#define __RENAME(x) __asm__(#x) + #endif /* !_SYS_CDEFS_H_ */ |