[src/trunk]: src/lib/libc/arch/i386/sys Make cerror() work correctly for stub...

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

details:   https://anonhg.NetBSD.org/src/rev/b7805d2771fe
branches:  trunk
changeset: 481150:b7805d2771fe
user:      mycroft <mycroft%NetBSD.org@localhost>
date:      Sun Jan 23 23:38:32 2000 +0000

description:
Make cerror() work correctly for stubs in other shlibs -- e.g. libposix.

diffstat:

 lib/libc/arch/i386/sys/cerror.S |  16 ++++++++++++----
 1 files changed, 12 insertions(+), 4 deletions(-)

diffs (44 lines):

diff -r 0d40b2086aa4 -r b7805d2771fe lib/libc/arch/i386/sys/cerror.S
--- a/lib/libc/arch/i386/sys/cerror.S   Sun Jan 23 23:37:42 2000 +0000
+++ b/lib/libc/arch/i386/sys/cerror.S   Sun Jan 23 23:38:32 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cerror.S,v 1.10 1999/02/07 17:22:25 christos Exp $     */
+/*     $NetBSD: cerror.S,v 1.11 2000/01/23 23:38:32 mycroft Exp $      */
 
 /*-
  * Copyright (c) 1990 The Regents of the University of California.
@@ -40,7 +40,7 @@
 
 #include <machine/asm.h>
 #if defined(SYSLIBC_SCCS) && !defined(lint)
-       RCSID("$NetBSD: cerror.S,v 1.10 1999/02/07 17:22:25 christos Exp $")
+       RCSID("$NetBSD: cerror.S,v 1.11 2000/01/23 23:38:32 mycroft Exp $")
 #endif /* SYSLIBC_SCCS and not lint */
 
 #include "SYS.h"
@@ -51,6 +51,15 @@
        .globl  _C_LABEL(errno)
 #endif
 _ENTRY(CERROR)
+#ifdef PIC
+       /* This is PIC_PROLOGUE without the pushl at the beginning.  The stub
+          already did that. */
+       call    1f
+1:
+       popl    %ebx
+       addl    $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
+#endif
+
 #ifdef _REENTRANT
        pushl   %eax
 # ifdef PIC
@@ -58,8 +67,7 @@
 # else
        call    _C_LABEL(__errno)
 # endif /* PIC */
-       popl    %ecx
-       movl    %ecx,(%eax)
+       popl    (%eax)
 #else
 # ifdef PIC
        movl    PIC_GOT(_C_LABEL(errno)),%ecx