#37893
77%

Ran 04 Sep 2024 10:43AM UTC

Jobs 1

Files 361

Run time 4min

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Committed 04 Sep 2024 02:14AM UTC coverage: 87.763% (+0.8%) from 86.931%

Build # #37893

Build Type

push

local

Committed by

web-flow

Commit Message

better signal handling (#55623)

Instead of relying on creating a fake stack frame, and having no signals
delivered, kernel bugs, accidentally gc_collect, or other issues occur
during the delivery and execution of these calls, use the ability we
added recently to emulate a longjmp into a unw_context to eliminate any
time where there would exist any invalid states.

Secondly, when calling jl_exit_thread0_cb, we used to end up completely
smashing the unwind info (with CFI_NOUNWIND), but this makes core files
from SIGQUIT much less helpful, so we now have a `fake_stack_pop`
function with contains the necessary CFI directives such that a minimal
unwind from the debugger will likely still succeed up into the frames
that were removed. We cannot do this perfectly on AArch64 since that
platform's DWARF spec lacks the ability to do so. On other platforms,
this should be possible to implement exactly (subject to libunwind
implementation quality). This is currently thus only fully implemented for
x86_64 on Darwin Apple.

Run Details

78232 of 89140 relevant lines covered (87.76%)

16650914.44 hits per line

Uncovered Existing Lines

Lines	Coverage	∆	File
1	88.43	1.52%	base/process.jl
1	89.76	0.0%	base/compiler/tfuncs.jl
2	92.96	4.47%	base/floatfuncs.jl
3	78.26	-13.04%	base/locks-mt.jl
86	86.48	-0.81%	stdlib/Profile/src/Profile.jl
112	92.79	0.15%	stdlib/LinearAlgebra/src/triangular.jl

Jobs

ID	Job ID	Ran	Files	Coverage
1	#37893.1	04 Sep 2024 10:43AM UTC	361	87.76

JuliaLang / julia / #37893
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