[src/trunk]: src/lib/libc/arch/sparc64 Go back from using %g2 (an application...

[eeh <eeh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a748de9fc23e
branches:  trunk
changeset: 526606:a748de9fc23e
user:      eeh <eeh%NetBSD.org@localhost>
date:      Tue May 07 01:32:46 2002 +0000

description:
Go back from using %g2 (an application register) to %g7 (a system register)
for syscall returns.

diffstat:

 lib/libc/arch/sparc64/SYS.h |  14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)

diffs (51 lines):

diff -r 2569de85556c -r a748de9fc23e lib/libc/arch/sparc64/SYS.h
--- a/lib/libc/arch/sparc64/SYS.h       Tue May 07 01:31:33 2002 +0000
+++ b/lib/libc/arch/sparc64/SYS.h       Tue May 07 01:32:46 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: SYS.h,v 1.9 2002/05/07 01:31:33 eeh Exp $      */
+/*     $NetBSD: SYS.h,v 1.10 2002/05/07 01:32:46 eeh Exp $     */
 
 /*-
  * Copyright (c) 1992, 1993
@@ -86,18 +86,18 @@
 
 /*
  * RSYSCALL is used when the system call should just return.  Here
- * we use the SYSCALL_G2RFLAG to put the `success' return address in %g2
+ * we use the SYSCALL_G7RFLAG to put the `success' return address in %g7
  * and avoid a branch.
  */
 #define        RSYSCALL(x) \
-       ENTRY(x); mov (_CAT(SYS_,x))|SYSCALL_G2RFLAG,%g1; add %o7,8,%g2; \
+       ENTRY(x); mov (_CAT(SYS_,x))|SYSCALL_G7RFLAG,%g1; add %o7,8,%g7; \
        t ST_SYSCALL; ERROR()
 
 /*
  * PSEUDO(x,y) is like RSYSCALL(y) except that the name is x.
  */
 #define        PSEUDO(x,y) \
-       ENTRY(x); mov (_CAT(SYS_,y))|SYSCALL_G2RFLAG,%g1; add %o7,8,%g2; \
+       ENTRY(x); mov (_CAT(SYS_,y))|SYSCALL_G7RFLAG,%g1; add %o7,8,%g7; \
        t ST_SYSCALL; ERROR()
 
 /*
@@ -124,16 +124,16 @@
  * XXX - This should be optimized.
  */
 #define RSYSCALL_NOERROR(x) \
-       ENTRY(x); mov (_CAT(SYS_,x))|SYSCALL_G2RFLAG,%g1; add %o7,8,%g2; \
+       ENTRY(x); mov (_CAT(SYS_,x))|SYSCALL_G7RFLAG,%g1; add %o7,8,%g7; \
        t ST_SYSCALL
 
 /*
  * PSEUDO_NOERROR(x,y) is like RSYSCALL_NOERROR(y) except that the name is x.
  */
 #define PSEUDO_NOERROR(x,y) \
-       ENTRY(x); mov (_CAT(SYS_,y))|SYSCALL_G2RFLAG,%g1; add %o7,8,%g2; \
+       ENTRY(x); mov (_CAT(SYS_,y))|SYSCALL_G7RFLAG,%g1; add %o7,8,%g7; \
        t ST_SYSCALL
 
-       .register       %g2,#scratch
+       .register       %g7,#scratch
 
        .globl  _C_LABEL(__cerror)