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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-12-07 16:21:55 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-06-09 15:16:45 -0300 |
| commit | f779b1efb35fe141e47952af3ac7f0540acca401 (patch) | |
| tree | c85d1e5a2b7f93048159938802f187d98a1b8d09 /nptl/Makefile | |
| parent | 8c1c0aae2079039a629b15098d78f3d11aabefb4 (diff) | |
| download | glibc-f779b1efb35fe141e47952af3ac7f0540acca401.tar.gz glibc-f779b1efb35fe141e47952af3ac7f0540acca401.tar.xz glibc-f779b1efb35fe141e47952af3ac7f0540acca401.zip | |
nptl: Implement raise in terms of pthread_kill
Now that pthread_kill is provided by libc.so it is possible to implement the generic POSIX implementation as 'pthread_kill(pthread_self(), sig)'. For Linux implementation, pthread_kill read the targeting TID from the TCB. For raise, this it not possible because it would make raise fail when issue after vfork (where creates the resulting process has a different TID from the parent, but its TCB is not updated as for pthread_create). To make raise use pthread_kill, it is make usable from vfork by getting the target thread id through gettid syscall. Checked on x86_64-linux-gnu and aarch64-linux-gnu.
Diffstat (limited to 'nptl/Makefile')
| -rw-r--r-- | nptl/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/nptl/Makefile b/nptl/Makefile index f7d7a2c7e2..3e6cf0c21b 100644 --- a/nptl/Makefile +++ b/nptl/Makefile @@ -251,6 +251,7 @@ CFLAGS-pthread_clockjoin.c += -fexceptions -fasynchronous-unwind-tables CFLAGS-pthread_once.c += $(uses-callbacks) -fexceptions \ -fasynchronous-unwind-tables CFLAGS-pthread_cond_wait.c += -fexceptions -fasynchronous-unwind-tables +CFLAGS-pthread_kill.c = -fexceptions -fasynchronous-unwind-tables CFLAGS-sem_wait.c += -fexceptions -fasynchronous-unwind-tables CFLAGS-sem_timedwait.c += -fexceptions -fasynchronous-unwind-tables CFLAGS-sem_clockwait.c = -fexceptions -fasynchronous-unwind-tables |