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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2023-11-20 19:19:50 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2023-11-20 23:28:16 +0100 |
| commit | 49b308a26e2a9e02ef396f67f59c462ad4171ea4 (patch) | |
| tree | e4705638a64da583bbe578896dbb5f8b5fa70333 /hurd/hurdexec.c | |
| parent | 3cbaacdfd2c11cb726011ef6464dce00c186a2bf (diff) | |
| download | glibc-49b308a26e2a9e02ef396f67f59c462ad4171ea4.zip glibc-49b308a26e2a9e02ef396f67f59c462ad4171ea4.tar.gz glibc-49b308a26e2a9e02ef396f67f59c462ad4171ea4.tar.bz2 | |
hurd: Prevent the final file_exec_paths call from signals
Otherwise if the exec server started thrashing the old task,
we won't be able to restart the exec.
This notably fixes building ghc.
Diffstat (limited to 'hurd/hurdexec.c')
| -rw-r--r-- | hurd/hurdexec.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/hurd/hurdexec.c b/hurd/hurdexec.c index e358d84..317d7ea 100644 --- a/hurd/hurdexec.c +++ b/hurd/hurdexec.c @@ -362,6 +362,7 @@ retry: if (!err) { int flags; + sigset_t old, new; if (pdp) { @@ -420,6 +421,15 @@ retry: if (__sigismember (&_hurdsig_traced, SIGKILL)) flags |= EXEC_SIGTRAP; #endif + + /* Avoid getting interrupted while exec(), notably not after the exec + server has committed to the exec and started thrashing us. + + TODO Rather add proper interrupt support to the exec server, that + avoids interrupts in that period. */ + __sigfillset (&new); + __sigprocmask (SIG_SETMASK, &new, &old); + err = __file_exec_paths (file, task, flags, path ? path : "", abspath ? abspath : "", @@ -440,6 +450,8 @@ retry: ints, INIT_INT_MAX, please_dealloc, pdp - please_dealloc, portnames, nportnames); + + __sigprocmask (SIG_SETMASK, &old, NULL); } /* Release references to the standard ports. */ |