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[asan] Implement GetObjectNameAndOffset on ARM. 

llvm-svn: 148236
This commit is contained in:
Evgeniy Stepanov 2012-01-16 12:45:07 +00:00
parent 50bf956f29
commit 1b65b17bf5
1 changed files with 23 additions and 0 deletions
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23
compiler-rt/lib/asan/asan_linux.cc
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@ -214,6 +214,27 @@ bool AsanProcMaps::Next(uintptr_t *start, uintptr_t *end,
return true;
}
#ifdef __arm__
// Gets the object name and the offset by walking AsanProcMaps.
bool AsanProcMaps::GetObjectNameAndOffset(uintptr_t addr, uintptr_t *offset,
char filename[],
size_t filename_size) {
AsanProcMaps proc_maps;
uintptr_t start, end, file_offset;
while (proc_maps.Next(&start, &end, &file_offset, filename, filename_size)) {
if (addr >= start && addr < end) {
*offset = (addr - start) + file_offset;
return true;
}
}
if (filename_size)
filename[0] = '\0';
return false;
}
#else // __arm__
struct DlIterateData {
int count;
uintptr_t addr;
@ -258,6 +279,8 @@ bool AsanProcMaps::GetObjectNameAndOffset(uintptr_t addr, uintptr_t *offset,
return false;
}
#endif // __arm__
void AsanThread::SetThreadStackTopAndBottom() {
if (tid() == 0) {
// This is the main thread. Libpthread may not be initialized yet.