Ian Lance Taylor f6be1179bb runtime: prevent deadlock when profiling signal arrives during traceback ...

Traceback routines, e.g. callers and funcentry, may call
    __go_get_backtrace_state. If a profiling signal arrives while we
    are in the critical section of __go_get_backtrace_state, it tries
    to do a traceback, which also calls __go_get_backtrace_state,
    which tries to enter the same critical section and will deadlock.
    Prevent this deadlock by setting up runtime_in_callers before
    calling __go_get_backtrace_state.
    
    Found while investigating golang/go#29448. Will add a test in the
    next CL.
    
    Updates golang/go#29448.
    
    Reviewed-on: https://go-review.googlesource.com/c/156037

From-SVN: r267590

2019-01-05 00:40:04 +00:00

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aeshash.c

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arch.h

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array.h

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defs.h

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env_posix.c

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getncpu-aix.c

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getncpu-bsd.c

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getncpu-irix.c

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getncpu-linux.c

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getncpu-none.c

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getncpu-solaris.c

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go-assert.c

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go-assert.h

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go-caller.c

runtime: prevent deadlock when profiling signal arrives during traceback

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go-callers.c

runtime: prevent deadlock when profiling signal arrives during traceback

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go-cdiv.c

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go-cgo.c

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go-construct-map.c

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go-ffi.c

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go-fieldtrack.c

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go-libmain.c

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go-main.c

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go-matherr.c

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go-memclr.c

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go-memcmp.c

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go-memequal.c

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go-memmove.c

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go-nanotime.c

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go-nosys.c

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go-now.c

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go-reflect-call.c

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go-runtime-error.c

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go-setenv.c

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go-signal.c

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go-string.h

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go-strslice.c

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go-type.h

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go-typedesc-equal.c

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go-unsafe-pointer.c

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go-unsetenv.c

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go-unwind.c

runtime: prevent deadlock when profiling signal arrives in stack scan

2018-12-29 00:07:06 +00:00

go-varargs.c

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panic.c

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print.c

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proc.c

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rtems-task-variable-add.c

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runtime_c.c

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runtime.h

runtime: prevent deadlock when profiling signal arrives in stack scan

2018-12-29 00:07:06 +00:00

stack.c

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thread.c

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yield.c

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