generic-library/bionic
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Improve <sys/cdefs.h>.

Browse Source 
Fix and use __RENAME (and lose ___RENAME --- two underscores should be
enough for anybody). This was the point of this change, because I want
to use __RENAME to support the two basename variants and the two
strerror_r variants.

Lose a bunch of macros that weren't being used.

Lose three dead files from the DNS code.

Change-Id: I3ef645c566b16a52217bc2e68c7d54b37c7c9522
This commit is contained in:
Elliott Hughes
2014-08-18 14:45:42 -07:00
parent 2b6cdb5e45
commit 2cfb4e8e2e
11 changed files with 39 additions and 281 deletions
Download Patch File Download Diff File Expand all files Collapse all files

96
libc/include/sys/cdefs.h
View File

@@ -267,20 +267,6 @@
#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 +345,15 @@
#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'.
* 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 __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.
*/
#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 +511,24 @@
#endif
#define __bos0(s) __builtin_object_size((s), 0)
#define __BIONIC_FORTIFY_INLINE \
extern __inline__ \
__attribute__ ((always_inline)) \
__attribute__ ((gnu_inline))
#define __BIONIC_FORTIFY_INLINE extern __inline__ __always_inline __attribute__((gnu_inline))
#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_ */