| commit | efc6d86965a21def9afcec65d3c96486667949ad | [log] [tgz] |
|---|---|---|
| author | Lynn Boger <laboger@linux.vnet.ibm.com> | Thu Feb 21 14:48:52 2019 -0500 |
| committer | Ian Lance Taylor <iant@golang.org> | Mon Feb 25 18:58:45 2019 +0000 |
| tree | 10236772d92ccbde2a96bfa9fe27da93028a04c3 | |
| parent | a718f939d258f184709e95e581657fb8f1a6f8a8 [diff] |
[release-branch.go1.12] cmd/compile: call ginsnop, not ginsnop2 on ppc64le for mid-stack inlining tracebacks A recent change to fix stacktraces for inlined functions introduced a regression on ppc64le when compiling position independent code. That happened because ginsnop2 was called for the purpose of inserting a NOP to identify the location of the inlined function, when ginsnop should have been used. ginsnop2 is intended to be used before deferreturn to ensure r2 is properly restored when compiling position independent code. In some cases the location where r2 is loaded from might not be initialized. If that happens and r2 is used to generate an address, the result is likely a SEGV. This fixes that problem. Fixes #30283 Change-Id: If70ef27fc65ef31969712422306ac3a57adbd5b6 Reviewed-on: https://go-review.googlesource.com/c/163337 Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com> Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Andrew Bonventre <andybons@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> (cherry picked from commit 2d3474043cd35ba06d3566df520e8550c479944f) Reviewed-on: https://go-review.googlesource.com/c/163717 Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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