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alpha: Support 6th argument to syscall

This commit is contained in:
Mike Hommey 2012-02-15 16:27:55 -08:00 committed by Richard Henderson
parent 596720af7a
commit f3ce45f370
2 changed files with 9 additions and 3 deletions
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5
ChangeLog.alpha
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@ -1,3 +1,8 @@
2012-02-15 Mike Hommey <mh+reportbug@glandium.org>
[BZ #11677]
* sysdeps/unix/sysv/linux/alpha/syscall.S: Support 6th argument.
2012-02-15 Richard Henderson <rth@twiddle.net> 2012-02-15 Richard Henderson <rth@twiddle.net>
* sysdeps/unix/sysv/linux/alpha/bits/signalfd.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/signalfd.h: New file.

7
sysdeps/unix/sysv/linux/alpha/syscall.S
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@ -31,13 +31,13 @@
* *
* Usage: * Usage:
* *
* long syscall(syscall_number, arg1, arg2, arg3, arg4, arg5) * long syscall(syscall_number, arg1, arg2, arg3, arg4, arg5, arg6)
* *
* syscall_number = the index of the system call we're invoking * syscall_number = the index of the system call we're invoking
* arg1-arg5 = up to 5 integer arguments to the system call * arg1-arg6 = up to 6 integer arguments to the system call
* *
* We need to do some arg shifting: the kernel expects the * We need to do some arg shifting: the kernel expects the
* syscall number in v0 and the first five args in a0-a4. * syscall number in v0 and the first six args in a0-a5.
* *
*/ */
@ -60,6 +60,7 @@ LEAF(__syscall, 0)
mov a3, a2 mov a3, a2
mov a4, a3 mov a4, a3
mov a5, a4 mov a5, a4
ldq a5,0(sp) /* arg6 -> a5 */
call_pal PAL_callsys /* Invoke system call */ call_pal PAL_callsys /* Invoke system call */
bne a3, $error bne a3, $error