1250
71%
master: 77%

Ran 16 Mar 2022 10:20AM UTC

Jobs 1

Files 57

Run time 15s

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Committed 16 Mar 2022 08:51AM UTC coverage: 71.28% (-0.2%) from 71.441%

Build # 1250

Build Type

push

travis-ci-com

Committed by

ivmai

Commit Message

Fix SIGSEGV caused by dropped stack access from child process in gctest
(a cherry-pick of commit 673f0cf3f from 'master')

Issue #256 (bdwgc).

Previously, a local variable was passed in gctest to
GC_move_disappearing_link as a link to clear, this led to a memory
access violation during garbage collection in the child process
if the fork occurred between  GC_move_disappearing_link(..., &new_link)
and GC_unregister_disappearing_link(&new_link).

This commit changes the mentioned local variable (new_link) use - now
it contains a pointer to a heap-allocated link rather then containing
just a link.

* tests/test.c (mktree): Change type of new_link from void* to
void**; initialize it to GC_NEW(void*) and ensure it is non-null;
replace new_link with *new_link; add comment new_link object is
reclaimed correctly even if the thread is dropped in the child
process between GC_move_disappearing_link(new_link) and
GC_unregister_disappearing_link.

Run Details

6701 of 9401 relevant lines covered (71.28%)

1914796.8 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
33	1250.33 (CONF_OPTIONS="--enable-gcov --enable-single-obj-compilation --enable-cplusplus --disable-shared --enable-gc-assertions" CFLAGS_EXTRA="-D USE_CUSTOM_SPECIFIC" REPORT_COVERAGE=true)	16 Mar 2022 10:20AM UTC	0	71.28	Travis Job 1250.33

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master: 77%

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