From: Andreas Jaeger <aj@suse.de>
Date: Fri, 16 Sep 2005 12:20:48 +0000 (+0000)
Subject: 2005-09-16  Maciej W. Rozycki  <macro@linux-mips.org>
X-Git-Tag: upstream/2.20~3636^2~1028
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ea78d8fa650ea6cc0d911d99bbd56a44e85296d9;p=platform%2Fupstream%2Flinaro-glibc.git

2005-09-16  Maciej W. Rozycki  <macro@linux-mips.org>

	[BZ #933]
	* sysdeps/unix/sysv/linux/mips/brk.c (__brk): Load the number of
	the syscall immediately before invocation.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S (__ioctl): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscall.S (syscall): Likewise.

	* sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S (__ioctl): Use
	macros to handle GP.
	* sysdeps/unix/sysv/linux/mips/mips64/syscall.S (syscall):
	Likewise.  Update inaccurate comments.
---

diff --git a/sysdeps/unix/sysv/linux/mips/brk.c b/sysdeps/unix/sysv/linux/mips/brk.c
index 4be88a9..5c31bec 100644
--- a/sysdeps/unix/sysv/linux/mips/brk.c
+++ b/sysdeps/unix/sysv/linux/mips/brk.c
@@ -1,5 +1,5 @@
 /* brk system call for Linux/MIPS.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -37,9 +37,10 @@ __brk (void *addr)
     register long int res __asm__ ("$2");
 
     asm ("move\t$4,%2\n\t"
+	 "li\t%0,%1\n\t"
 	 "syscall"		/* Perform the system call.  */
 	 : "=r" (res)
-	 : "0" (SYS_ify (brk)), "r" (addr)
+	 : "I" (SYS_ify (brk)), "r" (addr)
 	 : "$4", "$7");
     newbrk = (void *) res;
   }
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S b/sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S
index 7b14089..e4b4f00 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S
@@ -1,4 +1,4 @@
-/* Copyright 2003 Free Software Foundation, Inc.
+/* Copyright 2003, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -25,16 +25,16 @@
 
 	.text
 ENTRY (__ioctl)
+	sll a1, a1, 0
 	li v0, __NR_ioctl
-	sll a1,a1,0
 	syscall			/* Do the system call.  */
 	bne a3, zero, L(error)
 	ret
 
 L(error):
-	.cpsetup t9, a0, __ioctl
-	PTR_LA t9,__syscall_error
-	.cprestore
+	SETUP_GP64 (a0, __ioctl)
+	PTR_LA t9, __syscall_error
+	RESTORE_GP64
 	jr t9
 
 PSEUDO_END (__ioctl)
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/syscall.S b/sysdeps/unix/sysv/linux/mips/mips64/syscall.S
index ea5bf49..3c6aaac 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/syscall.S
+++ b/sysdeps/unix/sysv/linux/mips/mips64/syscall.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -20,17 +20,20 @@
 
 #include <sys/asm.h>
 
-/* Please consult the file sysdeps/unix/sysv/linux/x86-64/sysdep.h for
-   more information about the value -4095 used below.  */
+/* Usage:
+   long syscall (syscall_number, arg1, arg2, arg3, arg4, arg5, arg6, arg7)
 
-/* Usage: long syscall (syscall_number, arg1, arg2, arg3, arg4, arg5)
-   We need to do some arg shifting, the syscall_number will be in
-   rax.  */
+   We need to do some arg shifting, syscall_number will be in v0.  */
 
 
 	.text
-ENTRY (syscall)
-	move v0, a0		/* Syscall number -> v0 */
+NESTED (syscall, SZREG, ra)
+	.mask 0x00010000, -SZREG
+	.fmask 0x00000000, 0
+	PTR_ADDIU sp, -SZREG
+	REG_S s0, (sp)
+
+	move s0, a0
 	move a0, a1		/* shift arg1 - arg7.  */
 	move a1, a2
 	move a2, a3
@@ -39,15 +42,19 @@ ENTRY (syscall)
 	move a5, a6
 	move a6, a7
 
+	move v0, s0		/* Syscall number -> v0 */
 	syscall			/* Do the system call.  */
+
+	REG_L s0, (sp)
+	PTR_ADDIU sp, SZREG
 	bne a3, zero, L(error)
 
 	ret
 
 L(error):
-	.cpsetup t9, a0, syscall
-	PTR_LA t9,__syscall_error
-	.cprestore
+	SETUP_GP64 (a0, syscall)
+	PTR_LA t9, __syscall_error
+	RESTORE_GP64
 	jr t9
 
-PSEUDO_END (syscall)
+END (syscall)