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am 7ca5c4b9: Merge "Make __aeabi_*() symbols weak."

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* commit '7ca5c4b99b308550e34e185ed632b8a5ad5341ee':
  Make __aeabi_*() symbols weak.
This commit is contained in:
Dan Albert 2014-09-27 00:29:49 +00:00 committed by Android Git Automerger
commit 5eb62b3919
1 changed files with 16 additions and 13 deletions
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29
libc/arch-arm/bionic/__aeabi.c
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@ -39,6 +39,9 @@
extern int __cxa_atexit(void (*)(void*), void*, void*);
// All of these are weak symbols to avoid multiple definition errors when
// linking with libstdc++-v3 or compiler-rt.
/* The "C++ ABI for ARM" document states that static C++ constructors,
* which are called from the .init_array, should manually call
* __aeabi_atexit() to register static destructors explicitly.
@ -47,35 +50,35 @@ extern int __cxa_atexit(void (*)(void*), void*, void*);
* variable from the shared object that contains the constructor/destructor
*/
// Make this a weak symbol to avoid a multiple definition error when linking with libstdc++-v3.
int __attribute__((weak))
__aeabi_atexit(void *object, void (*destructor) (void *), void *dso_handle) {
return __cxa_atexit(destructor, object, dso_handle);
}
void __aeabi_memcpy8(void *dest, const void *src, size_t n) {
void __attribute__((weak))
__aeabi_memcpy8(void *dest, const void *src, size_t n) {
memcpy(dest, src, n);
}
void __aeabi_memcpy4(void *dest, const void *src, size_t n) {
void __attribute__((weak)) __aeabi_memcpy4(void *dest, const void *src, size_t n) {
memcpy(dest, src, n);
}
void __aeabi_memcpy(void *dest, const void *src, size_t n) {
void __attribute__((weak)) __aeabi_memcpy(void *dest, const void *src, size_t n) {
memcpy(dest, src, n);
}
void __aeabi_memmove8(void *dest, const void *src, size_t n) {
void __attribute__((weak)) __aeabi_memmove8(void *dest, const void *src, size_t n) {
memmove(dest, src, n);
}
void __aeabi_memmove4(void *dest, const void *src, size_t n) {
void __attribute__((weak)) __aeabi_memmove4(void *dest, const void *src, size_t n) {
memmove(dest, src, n);
}
void __aeabi_memmove(void *dest, const void *src, size_t n) {
void __attribute__((weak)) __aeabi_memmove(void *dest, const void *src, size_t n) {
memmove(dest, src, n);
}
@ -84,27 +87,27 @@ void __aeabi_memmove(void *dest, const void *src, size_t n) {
* This allows __aeabi_memclr to tail-call __aeabi_memset
*/
void __aeabi_memset8(void *dest, size_t n, int c) {
void __attribute__((weak)) __aeabi_memset8(void *dest, size_t n, int c) {
memset(dest, c, n);
}
void __aeabi_memset4(void *dest, size_t n, int c) {
void __attribute__((weak)) __aeabi_memset4(void *dest, size_t n, int c) {
memset(dest, c, n);
}
void __aeabi_memset(void *dest, size_t n, int c) {
void __attribute__((weak)) __aeabi_memset(void *dest, size_t n, int c) {
memset(dest, c, n);
}
void __aeabi_memclr8(void *dest, size_t n) {
void __attribute__((weak)) __aeabi_memclr8(void *dest, size_t n) {
__aeabi_memset8(dest, n, 0);
}
void __aeabi_memclr4(void *dest, size_t n) {
void __attribute__((weak)) __aeabi_memclr4(void *dest, size_t n) {
__aeabi_memset4(dest, n, 0);
}
void __aeabi_memclr(void *dest, size_t n) {
void __attribute__((weak)) __aeabi_memclr(void *dest, size_t n) {
__aeabi_memset(dest, n, 0);
}