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| author | Russ Cox <rsc@golang.org> | 2010-07-30 11:32:55 -0700 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2010-07-30 11:32:55 -0700 |
| commit | 68b0a87966e64d8f851257e89571d676d5c6e0cd (patch) | |
| tree | e30065aa945cf0268eeb99eeef4732dcc2961a13 /src/pkg/runtime/linux | |
| parent | a0368180a7853f6ada2cea6c41bed2bb2fb2de15 (diff) | |
| download | go-68b0a87966e64d8f851257e89571d676d5c6e0cd.tar.xz | |
runtime: do not fall through in SIGBUS/SIGSEGV
Faults beyond the first page are not expected
and should fail loudly. They are not subject to recover.
R=r
CC=golang-dev
https://golang.org/cl/1915042
Diffstat (limited to 'src/pkg/runtime/linux')
| -rw-r--r-- | src/pkg/runtime/linux/thread.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/pkg/runtime/linux/thread.c b/src/pkg/runtime/linux/thread.c index a849125f94..47bf3428f7 100644 --- a/src/pkg/runtime/linux/thread.c +++ b/src/pkg/runtime/linux/thread.c @@ -279,11 +279,13 @@ sigpanic(void) case SIGBUS: if(g->sigcode0 == BUS_ADRERR && g->sigcode1 < 0x1000) panicstring("invalid memory address or nil pointer dereference"); - break; + printf("unexpected fault address %p\n", g->sigcode1); + throw("fault"); case SIGSEGV: if((g->sigcode0 == 0 || g->sigcode0 == SEGV_MAPERR) && g->sigcode1 < 0x1000) panicstring("invalid memory address or nil pointer dereference"); - break; + printf("unexpected fault address %p\n", g->sigcode1); + throw("fault"); case SIGFPE: switch(g->sigcode0) { case FPE_INTDIV: |