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| author | Michael Hudson-Doyle <michael.hudson@canonical.com> | 2015-12-01 14:47:22 +1300 |
|---|---|---|
| committer | Michael Hudson-Doyle <michael.hudson@canonical.com> | 2015-12-01 04:51:35 +0000 |
| commit | f000523018e80471f51e29cae117831157d8dfb8 (patch) | |
| tree | a952e6f0303cc4bb8730fcf5010681e8a3768996 /src/runtime/signal_linux_ppc64x.go | |
| parent | 7305b55e98a6ff747491f39e72bfd1195f1161da (diff) | |
| download | go-f000523018e80471f51e29cae117831157d8dfb8.tar.gz go-f000523018e80471f51e29cae117831157d8dfb8.zip | |
runtime: set r12 to sigpanic before jumping to it in sighandler
The ppc64le shared library ABI demands that r12 is set to a function's global
entrypoint before jumping to the global entrypoint. Not doing so means that
handling signals that usually panic actually crashes (and so, e.g. can't be
recovered). Fixes several failures of "cd test; go run run.go -linkshared".
Change-Id: Ia4d0da4c13efda68340d38c045a52b37c2f90796
Reviewed-on: https://go-review.googlesource.com/17280
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Diffstat (limited to 'src/runtime/signal_linux_ppc64x.go')
| -rw-r--r-- | src/runtime/signal_linux_ppc64x.go | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/runtime/signal_linux_ppc64x.go b/src/runtime/signal_linux_ppc64x.go index 5445201b19..49e97a4d25 100644 --- a/src/runtime/signal_linux_ppc64x.go +++ b/src/runtime/signal_linux_ppc64x.go @@ -63,6 +63,7 @@ func (c *sigctxt) sigaddr() uint64 { return c.info.si_addr } func (c *sigctxt) fault() uint64 { return c.regs().dar } func (c *sigctxt) set_r0(x uint64) { c.regs().gpr[0] = x } +func (c *sigctxt) set_r12(x uint64) { c.regs().gpr[12] = x } func (c *sigctxt) set_r30(x uint64) { c.regs().gpr[30] = x } func (c *sigctxt) set_pc(x uint64) { c.regs().nip = x } func (c *sigctxt) set_sp(x uint64) { c.regs().gpr[1] = x } |