| commit | 9eb403159da9debbb4881140995e62bec0c943f3 | [log] [tgz] |
|---|---|---|
| author | Keith Randall <keithr@alum.mit.edu> | Fri Jun 07 13:22:53 2019 -0400 |
| committer | Keith Randall <khr@golang.org> | Fri Jun 07 18:51:04 2019 +0000 |
| tree | 095c119f79f402a8e29f701623ea2c28e8383e9c | |
| parent | 4c84d878130287f0c1d22afd83471e891600bf0f [diff] |
cmd/link: fix deferreturn detector The logic for detecting deferreturn calls is wrong. We used to look for a relocation whose symbol is runtime.deferreturn and has an offset of 0. But on some architectures, the relocation offset is not zero. These include arm (the offset is 0xebfffffe) and s390x (the offset is 6). This ends up setting the deferreturn offset at 0, so we end up using the entry point live map instead of the deferreturn live map in a frame which defers and then segfaults. Instead, use the IsDirectCall helper to find calls. Fixes #32477 Update #6980 Change-Id: Iecb530a7cf6eabd7233be7d0731ffa78873f3a54 Reviewed-on: https://go-review.googlesource.com/c/go/+/181258 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
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