From f1410e7e2e98fa3ed4112bf91c90ee6ff7476e7d Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Thu, 27 Dec 2018 16:31:50 +0000 Subject: runtime: let ARM32 EABI personality function continue unwind when called from traceback On ARM32 EABI, unlike other platforms, the personality function is called during _Unwind_Backtrace (libgcc/unwind-arm-common.inc:581). In this case, simply unwind the frame without returning any handlers. Otherwise traceback will loop if there is a frame with a defer on stack. Reviewed-on: https://go-review.googlesource.com/c/155759 From-SVN: r267434 --- libgo/runtime/go-unwind.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'libgo') diff --git a/libgo/runtime/go-unwind.c b/libgo/runtime/go-unwind.c index 388d7c7..58cb270 100644 --- a/libgo/runtime/go-unwind.c +++ b/libgo/runtime/go-unwind.c @@ -444,6 +444,9 @@ PERSONALITY_FUNCTION (int version, switch (state & _US_ACTION_MASK) { case _US_VIRTUAL_UNWIND_FRAME: + if (state & _UA_FORCE_UNWIND) + /* We are called from _Unwind_Backtrace. No handler to run. */ + CONTINUE_UNWINDING; actions = _UA_SEARCH_PHASE; break; -- cgit v1.1