| commit | 7323f700290516869bece089703359f2e8a55f8b | |
| author | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Fri, 23 Jun 2017 16:05:44 +0000 (23 16:05 +0000) | ||
| committer | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Fri, 23 Jun 2017 16:05:44 +0000 (23 16:05 +0000) | ||
| tree | f9c9927c7f70e3dd316f3234661634304e55c10a | treesnapshot (tar.gz zip) |
| parent | 22deed0d6aa6688424346ecf1339687a1a54f10c | commitdiff |
runtime: don't crash if no p in kickoff
The kickoff function for g0 can be invoked without a p, for example
from mcall(exitsyscall0) in exitsyscall after exitsyscall has cleared
the p field. The assignment gp.param = nil will invoke a write barrier.
If gp.param is not already nil, this will require a p. Avoid the problem
for a specific case that is known to be OK: when the value in gp.param
is a *g.
Reviewed-on: https://go-review.googlesource.com/46512
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@249595 138bc75d-0d04-0410-961f-82ee72b054a4
The kickoff function for g0 can be invoked without a p, for example
from mcall(exitsyscall0) in exitsyscall after exitsyscall has cleared
the p field. The assignment gp.param = nil will invoke a write barrier.
If gp.param is not already nil, this will require a p. Avoid the problem
for a specific case that is known to be OK: when the value in gp.param
is a *g.
Reviewed-on: https://go-review.googlesource.com/46512
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@249595 138bc75d-0d04-0410-961f-82ee72b054a4
| gcc/go/gofrontend/MERGE | diffblobblamehistory | |
| libgo/go/runtime/proc.go | diffblobblamehistory |