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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/os_netbsd.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/os_netbsd.go')
| -rw-r--r-- | src/runtime/os_netbsd.go | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/src/runtime/os_netbsd.go b/src/runtime/os_netbsd.go index 3a93d49ae0..81c52324ff 100644 --- a/src/runtime/os_netbsd.go +++ b/src/runtime/os_netbsd.go @@ -35,7 +35,7 @@ func setitimer(mode int32, new, old *itimerval) func sigaction(sig int32, new, old *sigactiont) //go:noescape -func sigaltstack(new, old *sigaltstackt) +func sigaltstack(new, old *stackt) //go:noescape func sigprocmask(how int32, new, old *sigset) @@ -303,17 +303,10 @@ func getsig(i int32) uintptr { return sa.sa_sigaction } +// setSignaltstackSP sets the ss_sp field of a stackt. //go:nosplit -func signalstack(s *stack) { - var st sigaltstackt - if s == nil { - st.ss_flags = _SS_DISABLE - } else { - st.ss_sp = s.lo - st.ss_size = s.hi - s.lo - st.ss_flags = 0 - } - sigaltstack(&st, nil) +func setSignalstackSP(s *stackt, sp uintptr) { + s.ss_sp = sp } //go:nosplit |