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author | Ian Lance Taylor <ian@gcc.gnu.org> | 2017-06-23 16:05:44 +0000 |
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committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2017-06-23 16:05:44 +0000 |
commit | bb96aa6726d1fac7e2500ef37d1193eed00b03f1 (patch) | |
tree | f9c9927c7f70e3dd316f3234661634304e55c10a /libgo/go/os | |
parent | 5f0b897b2ee47bf3845d924dd5bc3beb949bc78b (diff) | |
download | gcc-bb96aa6726d1fac7e2500ef37d1193eed00b03f1.zip gcc-bb96aa6726d1fac7e2500ef37d1193eed00b03f1.tar.gz gcc-bb96aa6726d1fac7e2500ef37d1193eed00b03f1.tar.bz2 |
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
From-SVN: r249595
Diffstat (limited to 'libgo/go/os')
0 files changed, 0 insertions, 0 deletions