commit d8a47466e35c62c83847d609b4acef64c5bfe56e
author Daniel Kiss <daniel.kiss@arm.com> Thu Apr 28 10:01:22 2022 +0200
committer Copybara-Service <copybara-worker@google.com> Thu Apr 28 09:46:30 2022 -0700
tree cdcc4c6a0d6e51caec2c920e1d185596ee95a5a1
parent 43a7a256a0f1871845e190c8191daa2917c2b8e2

[libunwind][AArch64] Fix _Unwind_ForcedUnwind via sigreturn.

When the sigreturn trampoline is found the unw_proc_info_t.end_ip need to be set to
indicate a stack frame is found.

Reviewed By: cjdb, #libunwind, MaskRay

Differential Revision: https://reviews.llvm.org/D124522

NOKEYCHECK=True
GitOrigin-RevId: f326df34bc179e41ea17d31e1ffba4a479e45589

src/UnwindCursor.hpp

diff --git a/src/UnwindCursor.hpp b/src/UnwindCursor.hpp
index dd849b7..29ded5c 100644
--- a/src/UnwindCursor.hpp
+++ b/src/UnwindCursor.hpp
@@ -2606,6 +2606,8 @@
   if (_addressSpace.get32(pc) == 0xd2801168 &&
       _addressSpace.get32(pc + 4) == 0xd4000001) {
     _info = {};
+    _info.start_ip = pc;
+    _info.end_ip = pc + 4;
     _isSigReturn = true;
     return true;
   }