diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S b/sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S index 2fc21e2b60..9eba838edf 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S +++ b/sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S @@ -25,9 +25,7 @@ /* __getcontext (const ucontext_t *ucp) Saves the machine context in UCP such that when it is activated, - it appears as if __getcontext() returned again. The only difference - is that on a first return, %r2 contains 1 and on a subsequent - return, it contains 0. + it appears as if __getcontext() returned again. This implementation is intended to be used for *synchronous* context switches only. Therefore, it does not have to save anything @@ -61,11 +59,13 @@ ENTRY(__getcontext) std %f14,SC_FPRS+112(%r5) std %f15,SC_FPRS+120(%r5) + /* Set __getcontext return value to 0. */ + slr %r2,%r2 + /* Store general purpose registers. */ stmg %r0,%r15,SC_GPRS(%r5) - /* Return 0. */ - slgr %r2,%r2 + /* Return. */ br %r14 END(__getcontext) |