From 706e6749de9667f3f3763743a294d28f895f4fa9 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Wed, 14 Sep 2016 14:07:20 -0300 Subject: posix: Correctly enable/disable cancellation on Linux posix_spawn This patch correctly enable and disable asynchronous cancellation on Linux posix_spawn. Current code invert the logic by enabling and disabling instead. It also adds a new test to check if posix_spawn is not a cancellation entrypoint. Checked on x86_64, i686, powerpc64le, and aarch64. * nptl/Makefile (tests): Add tst-exec5. * nptl/tst-exec5.c: New file. * sysdeps/unix/sysv/linux/spawni.c (__spawni): Correctly enable and disable asynchronous cancellation. --- sysdeps/unix/sysv/linux/spawni.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'sysdeps/unix/sysv/linux/spawni.c') diff --git a/sysdeps/unix/sysv/linux/spawni.c b/sysdeps/unix/sysv/linux/spawni.c index bb3eecfde1..5c5fcad5f4 100644 --- a/sysdeps/unix/sysv/linux/spawni.c +++ b/sysdeps/unix/sysv/linux/spawni.c @@ -340,7 +340,9 @@ __spawnix (pid_t * pid, const char *file, } /* Disable asynchronous cancellation. */ - int cs = LIBC_CANCEL_ASYNC (); + int state; + __libc_ptf_call (__pthread_setcancelstate, + (PTHREAD_CANCEL_DISABLE, &state), 0); args.file = file; args.exec = exec; @@ -386,7 +388,7 @@ __spawnix (pid_t * pid, const char *file, __sigprocmask (SIG_SETMASK, &args.oldmask, 0); - LIBC_CANCEL_RESET (cs); + __libc_ptf_call (__pthread_setcancelstate, (state, NULL), 0); return ec; } -- cgit v1.2.3-70-g09d2