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| author | Ian Lance Taylor <iant@golang.org> | 2016-09-25 13:38:54 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2016-09-26 04:07:31 +0000 |
| commit | d15295c6790b70eba0e4a3aa7ddead251aa440da (patch) | |
| tree | 6867463cd01a28a0566eadbf2cbda73fe1cf82ff /src/runtime/signal_freebsd.go | |
| parent | e6143e17d3e0c3ab8a7bd8357001217eb01dc6c6 (diff) | |
| download | go-d15295c6790b70eba0e4a3aa7ddead251aa440da.tar.gz go-d15295c6790b70eba0e4a3aa7ddead251aa440da.zip | |
runtime: unify handling of alternate signal stack
Change all Unix systems to use stackt for the alternate signal
stack (some were using sigaltstackt). Add OS-specific setSignalstackSP
function to handle different types for ss_sp field, and unify all
OS-specific signalstack functions into one. Unify handling of alternate
signal stack in OS-specific minit and sigtrampgo functions via new
functions minitSignalstack and setGsignalStack.
Change-Id: Idc316dc69b1dd725717acdf61a1cd8b9f33ed174
Reviewed-on: https://go-review.googlesource.com/29757
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Diffstat (limited to 'src/runtime/signal_freebsd.go')
| -rw-r--r-- | src/runtime/signal_freebsd.go | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/src/runtime/signal_freebsd.go b/src/runtime/signal_freebsd.go index c6c126983d..180b7bab4b 100644 --- a/src/runtime/signal_freebsd.go +++ b/src/runtime/signal_freebsd.go @@ -73,11 +73,7 @@ func sigtrampgo(sig uint32, info *siginfo, ctx unsafe.Pointer) { setg(nil) cgocallback(unsafe.Pointer(funcPC(sigNotOnStack)), noescape(unsafe.Pointer(&sig)), unsafe.Sizeof(sig), 0) } - g.m.gsignal.stack.lo = stsp - g.m.gsignal.stack.hi = stsp + st.ss_size - g.m.gsignal.stackguard0 = stsp + _StackGuard - g.m.gsignal.stackguard1 = stsp + _StackGuard - g.m.gsignal.stackAlloc = st.ss_size + setGsignalStack(&st) g.m.gsignal.stktopsp = getcallersp(unsafe.Pointer(&sig)) } |