Add options to only backtrace specific sizes.
Add backtrace_size for only backtracing a single size.
Add backtrace_min_size to set the minimum value of size to backtrace.
Add backtrace_max_size to set the maximum value of size to backtrace.
Documented the new options.
Test: New unit test pass.
Change-Id: I1a773737910cd4bc2af9546547b3a2740bbcb22b
diff --git a/libc/malloc_debug/Config.h b/libc/malloc_debug/Config.h
index 5e3ff71..ef1d2a9 100644
--- a/libc/malloc_debug/Config.h
+++ b/libc/malloc_debug/Config.h
@@ -47,6 +47,7 @@
constexpr uint64_t ABORT_ON_ERROR = 0x800;
constexpr uint64_t VERBOSE = 0x1000;
constexpr uint64_t CHECK_UNREACHABLE_ON_SIGNAL = 0x2000;
+constexpr uint64_t BACKTRACE_SPECIFIC_SIZES = 0x4000;
// In order to guarantee posix compliance, set the minimum alignment
// to 8 bytes for 32 bit systems and 16 bytes for 64 bit systems.
@@ -90,6 +91,9 @@
uint8_t fill_alloc_value() const { return fill_alloc_value_; }
uint8_t fill_free_value() const { return fill_free_value_; }
+ size_t backtrace_min_size_bytes() const { return backtrace_min_size_bytes_; }
+ size_t backtrace_max_size_bytes() const { return backtrace_max_size_bytes_; }
+
int record_allocs_signal() const { return record_allocs_signal_; }
size_t record_allocs_num_entries() const { return record_allocs_num_entries_; }
const std::string& record_allocs_file() const { return record_allocs_file_; }
@@ -121,6 +125,10 @@
bool SetBacktraceDumpOnExit(const std::string& option, const std::string& value);
bool SetBacktraceDumpPrefix(const std::string& option, const std::string& value);
+ bool SetBacktraceSize(const std::string& option, const std::string& value);
+ bool SetBacktraceMinSize(const std::string& option, const std::string& value);
+ bool SetBacktraceMaxSize(const std::string& option, const std::string& value);
+
bool SetExpandAlloc(const std::string& option, const std::string& value);
bool SetFreeTrack(const std::string& option, const std::string& value);
@@ -145,6 +153,8 @@
size_t backtrace_frames_ = 0;
bool backtrace_dump_on_exit_ = false;
std::string backtrace_dump_prefix_;
+ size_t backtrace_min_size_bytes_ = 0;
+ size_t backtrace_max_size_bytes_ = 0;
size_t fill_on_alloc_bytes_ = 0;
size_t fill_on_free_bytes_ = 0;