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-rw-r--r--libbacktrace/BacktraceThread.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/libbacktrace/BacktraceThread.h b/libbacktrace/BacktraceThread.h
index 3412d58..9310a44 100644
--- a/libbacktrace/BacktraceThread.h
+++ b/libbacktrace/BacktraceThread.h
@@ -18,6 +18,7 @@
#define _LIBBACKTRACE_BACKTRACE_THREAD_H
#include <inttypes.h>
+#include <signal.h>
#include <sys/types.h>
#include "BacktraceImpl.h"
@@ -29,6 +30,14 @@ enum state_e {
STATE_CANCEL,
};
+// The signal used to cause a thread to dump the stack.
+#if defined(__GLIBC__)
+// GLIBC reserves __SIGRTMIN signals, so use SIGRTMIN to avoid errors.
+#define THREAD_SIGNAL SIGRTMIN
+#else
+#define THREAD_SIGNAL (__SIGRTMIN+1)
+#endif
+
class BacktraceThreadInterface;
struct ThreadEntry {