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export all mmap and sbrk replacement functions

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This commit is contained in:
Aliaksey Kandratsenka 2024-03-20 20:38:54 -04:00
parent 5cba04ead2
commit 32796c754e
1 changed files with 10 additions and 9 deletions
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19
src/mmap_hook.cc
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@ -300,9 +300,9 @@ static_assert(sizeof(int64_t) == sizeof(off_t), "");
#undef mmap64
#undef mmap
extern "C" void* mmap64(void* start, size_t length, int prot, int flags, int fd, off_t off)
extern "C" PERFTOOLS_DLL_DECL void* mmap64(void* start, size_t length, int prot, int flags, int fd, off_t off)
__THROW ATTRIBUTE_SECTION(malloc_hook);
extern "C" void* mmap(void* start, size_t length, int prot, int flags, int fd, off_t off)
extern "C" PERFTOOLS_DLL_DECL void* mmap(void* start, size_t length, int prot, int flags, int fd, off_t off)
__THROW ATTRIBUTE_SECTION(malloc_hook);
void* mmap64(void* start, size_t length, int prot, int flags, int fd, off_t off) __THROW {
@ -320,9 +320,9 @@ void* mmap(void* start, size_t length, int prot, int flags, int fd, off_t off) _
static_assert(sizeof(int32_t) == sizeof(off_t), "");
extern "C" void* mmap64(void* start, size_t length, int prot, int flags, int fd, int64_t off)
extern "C" PERFTOOLS_DLL_DECL void* mmap64(void* start, size_t length, int prot, int flags, int fd, int64_t off)
__THROW ATTRIBUTE_SECTION(malloc_hook);
extern "C" void* mmap(void* start, size_t length, int prot, int flags, int fd, off_t off)
extern "C" PERFTOOLS_DLL_DECL void* mmap(void* start, size_t length, int prot, int flags, int fd, off_t off)
__THROW ATTRIBUTE_SECTION(malloc_hook);
void* mmap(void *start, size_t length, int prot, int flags, int fd, off_t off) __THROW {
@ -340,7 +340,7 @@ void* mmap64(void *start, size_t length, int prot, int flags, int fd, int64_t of
#ifdef HOOKED_MMAP
extern "C" int munmap(void* start, size_t length) __THROW ATTRIBUTE_SECTION(malloc_hook);
extern "C" PERFTOOLS_DLL_DECL int munmap(void* start, size_t length) __THROW ATTRIBUTE_SECTION(malloc_hook);
int munmap(void* start, size_t length) __THROW {
int result = tcmalloc::DirectMUnMap(/* invoke_hooks=*/ false, start, length);
if (result < 0) {
@ -382,8 +382,9 @@ int tcmalloc::DirectMUnMap(bool invoke_hooks, void *start, size_t length) {
}
#if __linux__
extern "C" void* mremap(void* old_addr, size_t old_size, size_t new_size,
int flags, ...) __THROW ATTRIBUTE_SECTION(malloc_hook);
extern "C" PERFTOOLS_DLL_DECL
void* mremap(void* old_addr, size_t old_size, size_t new_size,
int flags, ...) __THROW ATTRIBUTE_SECTION(malloc_hook);
// We only handle mremap on Linux so far.
void* mremap(void* old_addr, size_t old_size, size_t new_size,
int flags, ...) __THROW {
@ -416,7 +417,7 @@ void* mremap(void* old_addr, size_t old_size, size_t new_size,
// glibc's version:
extern "C" void* __sbrk(intptr_t increment);
extern "C" void* sbrk(intptr_t increment) __THROW ATTRIBUTE_SECTION(malloc_hook);
extern "C" PERFTOOLS_DLL_DECL void* sbrk(intptr_t increment) __THROW ATTRIBUTE_SECTION(malloc_hook);
void* sbrk(intptr_t increment) __THROW {
void *result = __sbrk(increment);
@ -434,7 +435,7 @@ void* sbrk(intptr_t increment) __THROW {
#endif
#if defined(__FreeBSD__) && defined(_LP64)
extern "C" void* sbrk(intptr_t increment) __THROW ATTRIBUTE_SECTION(malloc_hook);
extern "C" PERFTOOLS_DLL_DECL void* sbrk(intptr_t increment) __THROW ATTRIBUTE_SECTION(malloc_hook);
void* sbrk(intptr_t increment) __THROW {
uintptr_t curbrk = __syscall(SYS_break, nullptr);