From 92773db48eb6be7bc3ef12f44e4b163a7f5e0af3 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Tue, 12 Jun 2001 21:45:10 +0000
Subject: Cleanup the toploevel makefile handing of shared libs.  Add
 weak_alias define, and set things up so nasty old coff toolchains can now
 compile things and should actually work again.  -Erik

---
 libc/sysdeps/linux/m68k/Makefile     |  2 +-
 libc/sysdeps/linux/m68k/README.m68k  | 10 ----------
 libc/sysdeps/linux/m68k/bits/vfork.h | 31 -------------------------------
 libc/sysdeps/linux/m68k/crt0.S       |  5 ++++-
 libc/sysdeps/linux/m68k/vfork.c      | 25 +++++++++++++++++++++++++
 5 files changed, 30 insertions(+), 43 deletions(-)
 delete mode 100644 libc/sysdeps/linux/m68k/bits/vfork.h
 create mode 100644 libc/sysdeps/linux/m68k/vfork.c

(limited to 'libc/sysdeps/linux/m68k')

diff --git a/libc/sysdeps/linux/m68k/Makefile b/libc/sysdeps/linux/m68k/Makefile
index e4346e4c8..5f2b73581 100644
--- a/libc/sysdeps/linux/m68k/Makefile
+++ b/libc/sysdeps/linux/m68k/Makefile
@@ -32,7 +32,7 @@ CRT0_OBJ=$(patsubst %.S,%.o, $(CRT0))
 SSRC=setjmp.S # longjmp.S _start.S clone.S
 SOBJS=$(patsubst %.S,%.o, $(SSRC))
 
-CSRC=ptrace.c #errno.c
+CSRC=ptrace.c vfork.c
 COBJS=$(patsubst %.c,%.o, $(CSRC))
 
 OBJS=$(SOBJS) $(MOBJ) $(COBJS)
diff --git a/libc/sysdeps/linux/m68k/README.m68k b/libc/sysdeps/linux/m68k/README.m68k
index 697413852..f774e6f7a 100644
--- a/libc/sysdeps/linux/m68k/README.m68k
+++ b/libc/sysdeps/linux/m68k/README.m68k
@@ -40,16 +40,6 @@ Installation:
 	run:
 		make install
 
-Usage:
-	Any program you compile should have this added to CFLAGS:
-
-		-D__VFORK_MACRO__ -Dconst= -D__const=
-	
-	(You need the equal sign so that const and __const are defined
-	as NULL instead of as '1')  The 'const' keyword is broken for
-	m68k-pic-coff-gcc 2.7.2.3-pic-060999.  There _was_ a fix
-	floating around, but apparently it didn't work.
-
 Problems:
 
 	I _may_ be able to help if you run into problems.  Create a
diff --git a/libc/sysdeps/linux/m68k/bits/vfork.h b/libc/sysdeps/linux/m68k/bits/vfork.h
deleted file mode 100644
index ceb9af8a6..000000000
--- a/libc/sysdeps/linux/m68k/bits/vfork.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* orginally from include/unistd.h, written by ndf@linux.mit.edu> */
-
-#ifndef _M68K_VFORK_H
-#define _M68K_VFORK_H	1
-
-extern int _clone __P ((int (*fn)(void *arg), void *child_stack, int flags, void *arg));
-
-#ifndef __NR_vfork
-#define __NR_vfork __NR_fork /* uClinux-2.0 only has fork which is vfork */
-#endif
-
-#define vfork() ({						\
-unsigned long __res;	\
-__asm__ __volatile__ ("movel %1,%%d0;" \
-                      "trap  #0;" \
-					  "movel %%d0,%0"				\
-                      : "=d" (__res)				\
-                      : "0" (__NR_vfork)				\
-                      : "%d0");					\
-if (__res >= (unsigned long)-4096) {				\
-	errno = -__res;						\
-	__res = (pid_t)-1;					\
-}								\
-(pid_t)__res;							\
-})
-
-
-#define clone clone_not_available_use__clone
-
-#endif /* _M68K_VFORK_H */
-
diff --git a/libc/sysdeps/linux/m68k/crt0.S b/libc/sysdeps/linux/m68k/crt0.S
index 182e8baea..06b4b54f5 100644
--- a/libc/sysdeps/linux/m68k/crt0.S
+++ b/libc/sysdeps/linux/m68k/crt0.S
@@ -50,8 +50,11 @@ __exit:
  */
 empty_func:
 	rts
+#if defined HAVE_ELF
 	.weak atexit
-atexit = empty_func
+#else
+	.set atexit,empty_func
+#endif
 
 /*
  *	a little bit of stuff to support C++
diff --git a/libc/sysdeps/linux/m68k/vfork.c b/libc/sysdeps/linux/m68k/vfork.c
new file mode 100644
index 000000000..9edcb650d
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/vfork.c
@@ -0,0 +1,25 @@
+/* orginally from include/unistd.h, written by ndf@linux.mit.edu> */
+#include <unistd.h>
+#include <sys/types.h>
+#include <asm/unistd.h>
+
+#ifndef __NR_vfork
+#define __NR_vfork __NR_fork /* uClinux-2.0 only has fork which is vfork */
+#endif
+
+pid_t vfork(void)
+{
+    pid_t __res;
+	__asm__ __volatile__ ("movel %1,%%d0;"
+		"trap  #0;"
+		"movel %%d0,%0"
+		: "=d" (__res)
+		: "0" (__NR_vfork)
+		: "%d0");
+	if (__res >= (unsigned long)-4096) {
+	    errno = -__res;
+		__res = (pid_t)-1;
+	}
+    return(__res);
+}
+
-- 
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