Don't collect useless stack frames; do demangle C++ symbols.
Previously, we'd collect every stack frame and then throw some away
when we came to log them. This meant that stack traces were effectively
shorter than the buffers that had been allocated for them. This patch
only stores frames we'll actually output.
Also dynamically call the C++ demangler so we don't have to try to
read mangled names. Because no one knows the mangling of operator new[]
for int arrays off the top of their head.
Bug: 7291287
Change-Id: I42b022fd7cd61675d05171de4c3b2704d058ef2a
diff --git a/libc/bionic/debug_mapinfo.h b/libc/bionic/debug_mapinfo.h
index 6df55c5..cccd2e3 100644
--- a/libc/bionic/debug_mapinfo.h
+++ b/libc/bionic/debug_mapinfo.h
@@ -38,8 +38,8 @@
char name[];
};
-__LIBC_HIDDEN__ mapinfo_t* mapinfo_create(int pid);
+__LIBC_HIDDEN__ mapinfo_t* mapinfo_create(pid_t pid);
__LIBC_HIDDEN__ void mapinfo_destroy(mapinfo_t* mi);
-__LIBC_HIDDEN__ const mapinfo_t* mapinfo_find(mapinfo_t* mi, unsigned pc, unsigned* rel_pc);
+__LIBC_HIDDEN__ const mapinfo_t* mapinfo_find(mapinfo_t* mi, uintptr_t pc, uintptr_t* rel_pc);
#endif /* DEBUG_MAPINFO_H */