diff options
| -rw-r--r-- | linux-user/host/ppc64/safe-syscall.inc.S | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/linux-user/host/ppc64/safe-syscall.inc.S b/linux-user/host/ppc64/safe-syscall.inc.S index d30050a67c..8ed73a5b86 100644 --- a/linux-user/host/ppc64/safe-syscall.inc.S +++ b/linux-user/host/ppc64/safe-syscall.inc.S @@ -49,7 +49,9 @@ safe_syscall_base: * and returns the result in r3 * Shuffle everything around appropriately. */ - mr 11, 3 /* signal_pending */ + std 14, 16(1) /* Preserve r14 in SP+16 */ + .cfi_offset 14, 16 + mr 14, 3 /* signal_pending */ mr 0, 4 /* syscall number */ mr 3, 5 /* syscall arguments */ mr 4, 6 @@ -67,12 +69,13 @@ safe_syscall_base: */ safe_syscall_start: /* if signal_pending is non-zero, don't do the call */ - lwz 12, 0(11) + lwz 12, 0(14) cmpwi 0, 12, 0 bne- 0f sc safe_syscall_end: /* code path when we did execute the syscall */ + ld 14, 16(1) /* restore r14 to its original value */ bnslr+ /* syscall failed; return negative errno */ @@ -81,6 +84,7 @@ safe_syscall_end: /* code path when we didn't execute the syscall */ 0: addi 3, 0, -TARGET_ERESTARTSYS + ld 14, 16(1) /* restore r14 to its orginal value */ blr .cfi_endproc |