From: Ulrich Drepper <drepper@redhat.com>
Date: Thu, 12 Sep 1996 02:50:36 +0000 (+0000)
Subject: update from main archive 960911
X-Git-Tag: glibc-2.16-ports-before-merge~3733
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=bf4b3107628855b3084c448615858f2e80ffaa3f;p=thirdparty%2Fglibc.git

update from main archive 960911
---

diff --git a/sysdeps/unix/sysv/linux/m68k/Dist b/sysdeps/unix/sysv/linux/m68k/Dist
index a281cba3f94..738b9cc5420 100644
--- a/sysdeps/unix/sysv/linux/m68k/Dist
+++ b/sysdeps/unix/sysv/linux/m68k/Dist
@@ -1,2 +1 @@
-init-first.h
 clone.S
diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.S b/sysdeps/unix/sysv/linux/m68k/sysdep.S
index 895ea2770b0..674715f8249 100644
--- a/sysdeps/unix/sysv/linux/m68k/sysdep.S
+++ b/sysdeps/unix/sysv/linux/m68k/sysdep.S
@@ -33,8 +33,9 @@ errno:	.space 4
 _errno = errno	/* This name is expected by hj libc.so.5 startup code.  */
 	.text
 
-/* The following code is not used at all in the shared library.
-   The PIC system call stubs set errno themselves.  */
+/* The following code is only used in the shared library when we
+   compile the reentrant version.  Otherwise each system call defines
+   each own version.  */
 
 #ifndef	PIC
 
@@ -42,30 +43,34 @@ _errno = errno	/* This name is expected by hj libc.so.5 startup code.  */
 #define _ERRNO_H
 #include <errnos.h>
 
-.globl errno
-.globl __syscall_error
-
 /* The syscall stubs jump here when they detect an error.  */
 
 .globl __syscall_error
 __syscall_error:
 	neg.l %d0
-
-#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
-	/* We translate the system's EWOULDBLOCK error into EAGAIN.
-	   The GNU C library always defines EWOULDBLOCK==EAGAIN.
-	   EWOULDBLOCK_sys is the original number.  */
-	move.l #EWOULDBLOCK_sys, %d1
-	cmp.l %d0, %d1
-	jne 1f
-	move.l #EAGAIN, %d0
-1:
-#endif
-
 	move.l %d0, errno
+#ifdef _LIBC_REENTRANT
+	move.l %d0, -(%sp)
+	jbsr __errno_location
+	move.l (%sp)+, (%a0)
+#endif
 	move.l #-1, %d0
 	/* Copy return value to %a0 for syscalls that are declared to
 	   return a pointer.  */
 	move.l %d0, %a0
 	rts
+	.size	__syscall_error, . - __syscall_error
 #endif /* PIC */
+
+#ifdef	_LIBC_REENTRANT
+	.globl	__errno_location
+	.type	__errno_location, @function
+__errno_location:
+#ifdef PIC
+	move.l	(%pc, errno@GOTPC), %a0
+#else
+	lea	errno, %a0
+#endif
+	rts
+	.size	__errno_location, . - __errno_location
+#endif
diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.h b/sysdeps/unix/sysv/linux/m68k/sysdep.h
index fe2c6aa8233..9de750c326b 100644
--- a/sysdeps/unix/sysv/linux/m68k/sysdep.h
+++ b/sysdeps/unix/sysv/linux/m68k/sysdep.h
@@ -78,19 +78,37 @@ Cambridge, MA 02139, USA.  */
 
 #ifdef PIC
 /* Store (- %d0) into errno through the GOT.  */
+#ifdef _LIBC_REENTRANT
 #define SYSCALL_ERROR_HANDLER						      \
+    .type syscall_error, @function;					      \
 syscall_error:								      \
     move.l (errno@GOTPC, %pc), %a0;					      \
     neg.l %d0;								      \
     move.l %d0, (%a0);							      \
+    move.l %d0, -(%sp);							      \
+    jbsr __errno_location@PLTPC						      \
+    move.l (%sp)+, (%a0);						      \
     move.l POUND -1, %d0;						      \
     /* Copy return value to %a0 for syscalls that are declared to return      \
        a pointer (e.g., mmap).  */					      \
     move.l %d0, %a0;							      \
     rts;
 #else
+#define SYSCALL_ERROR_HANDLER						      \
+    .type syscall_error, @function;					      \
+syscall_error:								      \
+    move.l (errno@GOTPC, %pc), %a0;					      \
+    neg.l %d0;								      \
+    move.l %d0, (%a0);							      \
+    move.l POUND -1, %d0;						      \
+    /* Copy return value to %a0 for syscalls that are declared to return      \
+       a pointer (e.g., mmap).  */					      \
+    move.l %d0, %a0;							      \
+    rts;
+#endif /* _LIBC_REENTRANT */
+#else
 #define SYSCALL_ERROR_HANDLER	/* Nothing here; code in sysdep.S is used.  */
-#endif
+#endif /* PIC */
 
 /* Linux takes system call arguments in registers: