diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/swapcontext.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/swapcontext.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/swapcontext.c b/sysdeps/unix/sysv/linux/s390/swapcontext.c index 9f1be058db..2b34b63ce4 100644 --- a/sysdeps/unix/sysv/linux/s390/swapcontext.c +++ b/sysdeps/unix/sysv/linux/s390/swapcontext.c @@ -25,8 +25,14 @@ extern int __setcontext (__const ucontext_t *__ucp) __THROW; int __swapcontext (ucontext_t *oucp, const ucontext_t *ucp) { - if (__getcontext (oucp) == 0) - __setcontext (ucp); + /* Save the current machine context to oucp. */ + __getcontext (oucp); + /* Modify oucp to skip the __setcontext call on reactivation. */ + oucp->uc_mcontext.gregs[14] = &&fake_return; + /* Restore the machine context in ucp. */ + __setcontext (ucp); + +fake_return: return 0; } |