Added common handling of errno.

libc/sysdeps/linux/arm/crt0.S

@@ -53,14 +53,9 @@ _start:
 
 	.data
 	.align 2
-	.global __errno, __environ
+	.global __environ
 	
 __environ:  .long 0
 .weak environ
 environ = __environ
 
-__errno:    .long 0
-.weak errno
-errno = __errno
-
-

libc/sysdeps/linux/common/Makefile

@@ -28,7 +28,7 @@ LIBC=$(TOPDIR)libc.a
 CSRC =closedir.c dirfd.c getdents.c getdnnm.c gethstnm.c getpagesize.c \
 	isatty.c kernel_version.c mkfifo.c opendir.c readdir.c rewinddir.c \
 	seekdir.c setegid.c seteuid.c setpgrp.c statfix.c tell.c telldir.c \
-	wait.c wait3.c _xmknod.c libc_init.c tcgetatr.c
+	wait.c wait3.c _xmknod.c libc_init.c errno.c 
 COBJS=$(patsubst %.c,%.o, $(CSRC))
 
 NISRC= _fxstat.c _lxstat.c _xstat.c

libc/sysdeps/linux/m68k/errno.c → libc/sysdeps/linux/common/errno.c

@@ -2,8 +2,7 @@
 
 int errno = 0;
 
-int *
-__errno_location ( void )
+int * __errno_location ( void )
 {
   return &errno;
 }

libc/sysdeps/linux/i386/crt0.S

@@ -24,7 +24,6 @@ Cambridge, MA 02139, USA.  */
 */
 
 .global __environ
-.global __errno
 .global _start
 .global exit
 .global main
@@ -115,9 +114,3 @@ __environ:
 .align  4
 environ = __environ
 
-.data
-__errno:
-        .long 0
-.weak errno
-.align  4
-errno = __errno

libc/sysdeps/linux/m68k/Makefile

@@ -33,7 +33,7 @@ CRT0_OBJ=$(patsubst %.S,%.o, $(CRT0))
 SSRC=setjmp.S # longjmp.S _start.S clone.S
 SOBJS=$(patsubst %.S,%.o, $(SSRC))
 
-CSRC=errno.c
+CSRC=#errno.c
 COBJS=$(patsubst %.c,%.o, $(CSRC))
 
 OBJS=$(SOBJS) $(MOBJ) $(COBJS)