Update copyright dates with scripts/update-copyrights.

[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / s390 / s390-64 / syscall.S

diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/syscall.S b/sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
index 718d559c3b859ede30e1291072e9c7ca3e78901f..024ce98a5e18c4aa44302eb92f0bda2ab4ce6555 100644 (file)
--- a/sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2016 Free Software Foundation, Inc.
    Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
@@ -13,9 +13,8 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
 
 #include <sysdep.h>
 
@@ -25,28 +24,45 @@
 ENTRY (syscall)
        /* Save registers and setup stack.  */
        stmg    %r6,%r15,48(%r15)  /* Save registers.  */
+       cfi_offset (%r15,-40)
+       cfi_offset (%r14,-48)
+       cfi_offset (%r13,-56)
+       cfi_offset (%r12,-64)
+       cfi_offset (%r11,-72)
+       cfi_offset (%r10,-80)
+       cfi_offset (%r9,-88)
+       cfi_offset (%r8,-96)
+       cfi_offset (%r7,-104)
+       cfi_offset (%r6,-112)
        lgr     %r1,%r15
        lg      %r0,8(%r15)        /* Load eos.  */
        aghi    %r15,-160          /* Buy stack space.  */
+       cfi_adjust_cfa_offset (160)
        stg     %r1,0(%r15)        /* Store back chain.  */
        stg     %r0,8(%r15)        /* Store eos.  */
-       
+
        lgr    %r1,%r2             /* Move syscall number.  */
        lgr    %r2,%r3             /* First parameter.  */
        lgr    %r3,%r4             /* Second parameter.  */
        lgr    %r4,%r5             /* Third parameter.  */
        lgr    %r5,%r6             /* Fourth parameter.  */
        lg     %r6,320(%r15)       /* Fifth parameter.  */
-       basr   %r7,0
-.L0:   ex     %r1,.L1-.L0(%r7)    /* Lsb of R1 is subsituted as SVC number.  */
+       lg     %r7,328(%r15)       /* Sixth parameter.  */
 
-       lg      %r15,0(%r15)       /* Load back chain.  */
+       basr   %r8,0
+0:     clg    %r1,4f-0b(%r8)      /* svc number < 256? */
+       jl     2f
+1:     svc    0
+       j      3f
+2:     ex     %r1,1b-0b(%r8)      /* lsb of R1 is subsituted as SVC number */
+3:     lg     %r15,0(%r15)        /* load back chain */
+       cfi_adjust_cfa_offset (-160)
        lmg     %r6,15,48(%r15)    /* Load registers.  */
 
        lghi   %r0,-4095
        clgr   %r2,%r0             /* Check R2 for error.  */
        jgnl   SYSCALL_ERROR_LABEL
        br     %r14                /* Return to caller.  */
-.L1:   .word  0x0A00              /* Opcode for SVC 0.  */
+4:     .quad  256
 PSEUDO_END (syscall)