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am cfff36df: am a60ff6c5: Merge "libc: Define new symbol visibility macros"

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* commit 'cfff36df2bebd95f2663b7b053c6308593c343dd':
  libc: Define new symbol visibility macros
This commit is contained in:
Jean-Baptiste Queru 2012-02-13 14:39:52 -08:00 committed by Android Git Automerger
commit 09049311a2
3 changed files with 31 additions and 0 deletions
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6
libc/arch-arm/include/machine/asm.h
View file

@ -97,6 +97,12 @@
#define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y))
#define ASEND(y) _END(_ASM_LABEL(y))
#ifdef __ELF__
#define ENTRY_PRIVATE(y) ENTRY(y); .hidden _C_LABEL(y)
#else
#define ENTRY_PRIVATE(y) ENTRY(y)
#endif
#define ASMSTR .asciz
#if defined(__ELF__) && defined(PIC)

10
libc/arch-x86/include/machine/asm.h
View file

@ -103,6 +103,12 @@
#define _ENTRY(x) \
.text; _ALIGN_TEXT; .globl x; .type x,@function; x:
#define _ASM_SIZE(x) .size x, .-x;
#define _END(x) \
.fnend; \
_ASM_SIZE(x)
#ifdef GPROF
# define _PROF_PROLOGUE \
pushl %ebp; movl %esp,%ebp; call PIC_PLT(mcount); popl %ebp
@ -112,8 +118,12 @@
#define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
#define NENTRY(y) _ENTRY(_C_LABEL(y))
#define END(y) _END(_C_LABEL(y))
#define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
#define ENTRY_PRIVATE(y) ENTRY(y); .hidden _C_LABEL(y)
#define ALTENTRY(name) .globl _C_LABEL(name); _C_LABEL(name):
#define ASMSTR .asciz

15
libc/include/sys/cdefs_elf.h
View file

@ -96,9 +96,24 @@
#endif
/* GCC visibility helper macro */
/* This must be used to tag non-static functions that are private, i.e.
* never exposed by the shared library. */
#define __LIBC_HIDDEN__ \
__attribute__ ((visibility ("hidden")))
/* This must be used to tag non-static functions that are public, i.e.
* exposed by the shared library, and part of the stable NDK ABI */
#define __LIBC_ABI_PUBLIC__ \
__attribute__ ((visibility ("default")))
/* This must be used to tag non-static functions that must be exported
* by the shared library, but whose implementation is private to the
* platform. For now this is equivalent to __LIBC_ABI_PUBLIC__, but we
* may want to change this later.
*/
#define __LIBC_ABI_PRIVATE__ \
__attribute__ ((visibility ("default")))
#define __IDSTRING(_n,_s) __SECTIONSTRING(.ident,_s)
#define __RCSID(_s) __IDSTRING(rcsid,_s)