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| author | Richard Henderson | 2016-06-13 23:45:21 +0200 |
|---|---|---|
| committer | Riku Voipio | 2016-06-26 12:17:22 +0200 |
| commit | 4eed9990a0d50d9c2bc7042fb3b68579985867ae (patch) | |
| tree | d1e4f3b04de8ca0b6efa72c325f8b9ed4a215e54 /linux-user/host | |
| parent | linux-user: don't swap NLMSG_DATA() fields (diff) | |
| download | qemu-4eed9990a0d50d9c2bc7042fb3b68579985867ae.tar.gz qemu-4eed9990a0d50d9c2bc7042fb3b68579985867ae.tar.xz qemu-4eed9990a0d50d9c2bc7042fb3b68579985867ae.zip | |
linux-user: fix x86_64 safe_syscall
Do what the comment says, test for signal_pending non-zero,
rather than the current code which tests for bit 0 non-zero.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'linux-user/host')
| -rw-r--r-- | linux-user/host/x86_64/safe-syscall.inc.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/linux-user/host/x86_64/safe-syscall.inc.S b/linux-user/host/x86_64/safe-syscall.inc.S index e09368d450..f36992daa3 100644 --- a/linux-user/host/x86_64/safe-syscall.inc.S +++ b/linux-user/host/x86_64/safe-syscall.inc.S @@ -67,8 +67,8 @@ safe_syscall_base: */ safe_syscall_start: /* if signal_pending is non-zero, don't do the call */ - testl $1, (%rbp) - jnz return_ERESTARTSYS + cmpl $0, (%rbp) + jnz 1f syscall safe_syscall_end: /* code path for having successfully executed the syscall */ @@ -78,7 +78,7 @@ safe_syscall_end: .cfi_restore rbp ret -return_ERESTARTSYS: +1: /* code path when we didn't execute the syscall */ .cfi_restore_state mov $-TARGET_ERESTARTSYS, %rax |