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History log of /src/tests/lib/libc/sys/t_ptrace_fork_wait.h
RevisionDateAuthorComments
 1.8  02-May-2025  riastradh tests/lib/libc/sys/t_ptrace*: Nix trailing whitespace.

No functional change intended.

Preparation for:

PR misc/59381: t_ptrace_wait* and t_ptrace_sigchld tests are flaky
 1.7  09-Jun-2020  kamil Add fork/vfork/posix_spawn tests for processes within pgrp

New tests:
- fork_setpgid
- vfork_setpgid
- posix_spawn_setpgid
- unrelated_tracer_fork_setpgid
- unrelated_tracer_vfork_setpgid
- unrelated_tracer_posix_spawn_setpgid

These tests trigger a kernel assert for pg_jobc going negative.

The tests are temporarily skipped.
 1.6  16-May-2020  kamil Ignore interception of SIGCHLD signals in the debugger

Set SIGPASS for SIGCHLD for the traced child in the following tests:
- unrelated_tracer_fork*
- unrelated_tracer_vfork*
- unrelated_tracer_posix_spawn*

There is a race that SIGCHLD might be blocked during forking and dropped.

PR/55241 by Andreas Gustafsson
 1.5  16-May-2020  kamil Fix typo in test names

Noted by <joerg>
 1.4  16-May-2020  kamil Ignore interception of SIGCHLD signals in the debugger

Set SIGPASS for SIGCHLD for the traced child in the following tests:

- posix_spawn_singalmasked
- posix_spawn_singalignored
- fork_singalmasked
- fork_singalignored
- vfork_singalmasked
- vfork_singalignored
- vforkdone_singalmasked
- vforkdone_singalignored

There is a race that SIGCHLD might be blocked during forking and dropped.

PR/55241 by Andreas Gustafsson
 1.3  14-May-2020  kamil Ignore interception of the SIGCHLD signals.

SIGCHLD once blocked is discarded by the kernel as it has the
SA_IGNORE property. During the fork(2) operation all signals can be
shortly blocked and missed (unless there is a registered signal
handler in the traced child). This leads to a race in this test if
there would be an intention to catch SIGCHLD.

Fixes PR lib/55241 by Andreas Gustafsson
 1.2  11-May-2020  kamil Fix race in fork_singalmasked

ELF RTLD after rtld.c r. 1.204 introduced locking that wraps the fork
syscall. This locking changes signal mask of the calling process during
the forking process.

Instead of comparing old and new signal mask, just after the forking
operation, check whether the expected signal is still masked and in
another test whether it is still ignored.
 1.1  04-May-2020  kamil Move fork/vfork/posix_spawn tests out of t_ptrace_wait.c to t_ptrace_fork_wait.h

The same tests are now included with the preprocessor in t_ptrace_wait.c.

No functional change intended.

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