[Commits] r24894 - in /fsf/trunk/libc/ports: ChangeLog.ia64 sysdeps/unix/sysv/linux/ia64/syscall.S

[eglibc@xxxxxxxxxx]

Author: eglibc
Date: Mon Dec 30 00:01:59 2013
New Revision: 24894

Log:
Import glibc-mainline for 2013-12-30

Modified:
    fsf/trunk/libc/ports/ChangeLog.ia64
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/syscall.S

Modified: fsf/trunk/libc/ports/ChangeLog.ia64
==============================================================================
--- fsf/trunk/libc/ports/ChangeLog.ia64 (original)
+++ fsf/trunk/libc/ports/ChangeLog.ia64 Mon Dec 30 00:01:59 2013
@@ -1,3 +1,7 @@
+2013-12-29  Mike Frysinger  <vapier@xxxxxxxxxx>
+
+	* sysdeps/unix/sysv/linux/ia64/syscall.S: Add a comment.
+
 2013-12-25  Mike Frysinger  <vapier@xxxxxxxxxx>
 
 	* sysdeps/unix/sysv/linux/ia64/nptl/lowlevellock.h

Modified: fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/syscall.S
==============================================================================
--- fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/syscall.S (original)
+++ fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/syscall.S Mon Dec 30 00:01:59 2013
@@ -19,6 +19,10 @@
 #include <sysdep.h>
 
 ENTRY(syscall)
+	/* We are called like so:
+	   {out0,out1,...,out6} registers -> {NR, arg1, ..., arg6}
+	   Shift the register window so that {out1...out6} are available
+	   in {out0...out5} like the kernel syscall handler expects.  */
 	alloc r2=ar.pfs,1,0,8,0
 	mov r15=r32		/* syscall number */
 	break __BREAK_SYSCALL

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