diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-32/syscall.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-32/syscall.S | 30 |
1 files changed, 6 insertions, 24 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S b/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S index a78188be4f..06280992ab 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S +++ b/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2000-2018 Free Software Foundation, Inc. +/* Copyright (C) 2000-2019 Free Software Foundation, Inc. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). This file is part of the GNU C Library. @@ -14,7 +14,7 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ + <https://www.gnu.org/licenses/>. */ #include <sysdep.h> @@ -22,37 +22,19 @@ more information about the value -4095 used below.*/ ENTRY (syscall) - /* Save registers and setup stack. */ - stm %r6,%r15,24(%r15) /* save registers */ - cfi_offset (%r15, -36) - cfi_offset (%r14, -40) - cfi_offset (%r13, -44) - cfi_offset (%r12, -48) - cfi_offset (%r11, -52) - cfi_offset (%r10, -56) - cfi_offset (%r9, -60) - cfi_offset (%r8, -64) + stm %r6,%r7,24(%r15) /* save registers */ cfi_offset (%r7, -68) cfi_offset (%r6, -72) - lr %r1,%r15 - l %r0,4(0,%r15) /* load eos */ - ahi %r15,-96 /* buy stack space */ - cfi_adjust_cfa_offset (96) - st %r1,0(0,%r15) /* store back chain */ - st %r0,4(0,%r15) /* store eos */ lr %r1,%r2 /* move syscall number */ lr %r2,%r3 /* first parameter */ lr %r3,%r4 /* second parameter */ lr %r4,%r5 /* third parameter */ lr %r5,%r6 /* fourth parameter */ - l %r6,192(%r15) /* fifth parameter */ - l %r7,196(%r15) /* sixth parameter */ - + lm %r6,%r7,96(%r15) /* fifth / sixth parameter */ svc 0 - l %r15,0(%r15) /* load back chain. */ - cfi_adjust_cfa_offset (-96) - lm %r6,%r15,24(%r15) /* load registers. */ + + lm %r6,%r7,24(%r15) /* load registers. */ lhi %r0,-4095 clr %r2,%r0 /* check R2 for error */ |