m68k,m68knommu: merge header files

Merge header files for m68k and m68knommu to the single location:

    arch/m68k/include/asm

The majority of this patch was the result of the
script that is included in the changelog below.

The script was originally written by Arnd Bergman and
exten by me to cover a few more files.

When the header files differed the script uses the following:

The original m68k file is named <file>_mm.h  [mm for memory manager]
The m68knommu file is named <file>_no.h [no for no memory manager]

The files uses the following include guard:

This include gaurd works as the m68knommu toolchain set
the __uClinux__ symbol - so this should work in userspace too.

Merging the header files for m68k and m68knommu exposes the
(unexpected?) ABI differences thus it is easier to actually
identify these and thus to fix them.

The commit has been build tested with both a m68k and
a m68knommu toolchain - with success.

The commit has also been tested with "make headers_check"
and this patch fixes make headers_check for m68knommu.

The script used:
TARGET=arch/m68k/include/asm
SOURCE=arch/m68knommu/include/asm

INCLUDE="cachectl.h errno.h fcntl.h hwtest.h ioctls.h ipcbuf.h \
linkage.h math-emu.h md.h mman.h movs.h msgbuf.h openprom.h \
oplib.h poll.h posix_types.h resource.h rtc.h sembuf.h shmbuf.h \
shm.h shmparam.h socket.h sockios.h spinlock.h statfs.h stat.h \
termbits.h termios.h tlb.h types.h user.h"

EQUAL="auxvec.h cputime.h device.h emergency-restart.h futex.h \
ioctl.h irq_regs.h kdebug.h local.h mutex.h percpu.h \
sections.h topology.h"

NOMUUFILES="anchor.h bootstd.h coldfire.h commproc.h dbg.h \
elia.h flat.h m5206sim.h m520xsim.h m523xsim.h m5249sim.h \
m5272sim.h m527xsim.h m528xsim.h m5307sim.h m532xsim.h \
m5407sim.h m68360_enet.h m68360.h m68360_pram.h m68360_quicc.h \
m68360_regs.h MC68328.h MC68332.h MC68EZ328.h MC68VZ328.h \
mcfcache.h mcfdma.h mcfmbus.h mcfne.h mcfpci.h mcfpit.h \
mcfsim.h mcfsmc.h mcftimer.h mcfuart.h mcfwdebug.h \
nettel.h quicc_simple.h smp.h"

FILES="atomic.h bitops.h bootinfo.h bug.h bugs.h byteorder.h cache.h \
cacheflush.h checksum.h current.h delay.h div64.h \
dma-mapping.h dma.h elf.h entry.h fb.h fpu.h hardirq.h hw_irq.h io.h \
irq.h kmap_types.h machdep.h mc146818rtc.h mmu.h mmu_context.h \
module.h page.h page_offset.h param.h pci.h pgalloc.h \
pgtable.h processor.h ptrace.h scatterlist.h segment.h \
setup.h sigcontext.h siginfo.h signal.h string.h system.h swab.h \
thread_info.h timex.h tlbflush.h traps.h uaccess.h ucontext.h \
unaligned.h unistd.h"

mergefile() {
	BASE=${1%.h}
	git mv ${SOURCE}/$1 ${TARGET}/${BASE}_no.h
	git mv ${TARGET}/$1 ${TARGET}/${BASE}_mm.h

cat << EOF > ${TARGET}/$1
EOF

	git add ${TARGET}/$1
}

set -e

mkdir -p ${TARGET}

git mv include/asm-m68k/* ${TARGET}
rmdir include/asm-m68k

git rm ${SOURCE}/Kbuild
for F in $INCLUDE $EQUAL; do
	git rm ${SOURCE}/$F
done

for F in $NOMUUFILES; do
	git mv ${SOURCE}/$F ${TARGET}/$F
done

for F in $FILES ; do
	mergefile $F
done

rmdir arch/m68knommu/include/asm
rmdir arch/m68knommu/include

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>

1 files changed, 131 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/string_mm.h b/arch/m68k/include/asm/string_mm.h
new file mode 100644
index 00000000000..2eb7df1e0f5
--- /dev/null
+++ b/arch/m68k/include/asm/string_mm.h
@@ -0,0 +1,131 @@
+#ifndef _M68K_STRING_H_
+#define _M68K_STRING_H_
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+
+static inline size_t __kernel_strlen(const char *s)
+{
+	const char *sc;
+
+	for (sc = s; *sc++; )
+		;
+	return sc - s - 1;
+}
+
+static inline char *__kernel_strcpy(char *dest, const char *src)
+{
+	char *xdest = dest;
+
+	asm volatile ("\n"
+		"1:	move.b	(%1)+,(%0)+\n"
+		"	jne	1b"
+		: "+a" (dest), "+a" (src)
+		: : "memory");
+	return xdest;
+}
+
+#ifndef __IN_STRING_C
+
+#define __HAVE_ARCH_STRLEN
+#define strlen(s)	(__builtin_constant_p(s) ?	\
+			 __builtin_strlen(s) :		\
+			 __kernel_strlen(s))
+
+#define __HAVE_ARCH_STRNLEN
+static inline size_t strnlen(const char *s, size_t count)
+{
+	const char *sc = s;
+
+	asm volatile ("\n"
+		"1:     subq.l  #1,%1\n"
+		"       jcs     2f\n"
+		"       tst.b   (%0)+\n"
+		"       jne     1b\n"
+		"       subq.l  #1,%0\n"
+		"2:"
+		: "+a" (sc), "+d" (count));
+	return sc - s;
+}
+
+#define __HAVE_ARCH_STRCPY
+#if __GNUC__ >= 4
+#define strcpy(d, s)	(__builtin_constant_p(s) &&	\
+			 __builtin_strlen(s) <= 32 ?	\
+			 __builtin_strcpy(d, s) :	\
+			 __kernel_strcpy(d, s))
+#else
+#define strcpy(d, s)	__kernel_strcpy(d, s)
+#endif
+
+#define __HAVE_ARCH_STRNCPY
+static inline char *strncpy(char *dest, const char *src, size_t n)
+{
+	char *xdest = dest;
+
+	asm volatile ("\n"
+		"	jra	2f\n"
+		"1:	move.b	(%1),(%0)+\n"
+		"	jeq	2f\n"
+		"	addq.l	#1,%1\n"
+		"2:	subq.l	#1,%2\n"
+		"	jcc	1b\n"
+		: "+a" (dest), "+a" (src), "+d" (n)
+		: : "memory");
+	return xdest;
+}
+
+#define __HAVE_ARCH_STRCAT
+#define strcat(d, s)	({			\
+	char *__d = (d);			\
+	strcpy(__d + strlen(__d), (s));		\
+})
+
+#define __HAVE_ARCH_STRCHR
+static inline char *strchr(const char *s, int c)
+{
+	char sc, ch = c;
+
+	for (; (sc = *s++) != ch; ) {
+		if (!sc)
+			return NULL;
+	}
+	return (char *)s - 1;
+}
+
+#define __HAVE_ARCH_STRCMP
+static inline int strcmp(const char *cs, const char *ct)
+{
+	char res;
+
+	asm ("\n"
+		"1:	move.b	(%0)+,%2\n"	/* get *cs */
+		"	cmp.b	(%1)+,%2\n"	/* compare a byte */
+		"	jne	2f\n"		/* not equal, break out */
+		"	tst.b	%2\n"		/* at end of cs? */
+		"	jne	1b\n"		/* no, keep going */
+		"	jra	3f\n"		/* strings are equal */
+		"2:	sub.b	-(%1),%2\n"	/* *cs - *ct */
+		"3:"
+		: "+a" (cs), "+a" (ct), "=d" (res));
+	return res;
+}
+
+#define __HAVE_ARCH_MEMSET
+extern void *memset(void *, int, __kernel_size_t);
+#define memset(d, c, n) __builtin_memset(d, c, n)
+
+#define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *, const void *, __kernel_size_t);
+#define memcpy(d, s, n) __builtin_memcpy(d, s, n)
+
+#define __HAVE_ARCH_MEMMOVE
+extern void *memmove(void *, const void *, __kernel_size_t);
+
+#define __HAVE_ARCH_MEMCMP
+extern int memcmp(const void *, const void *, __kernel_size_t);
+#define memcmp(d, s, n) __builtin_memcmp(d, s, n)
+
+#endif
+
+#endif /* _M68K_STRING_H_ */