Add mbr pseudo metadata handler.

To support incorpating a new bare device into a collection of arrays -
one partition each - mdadm needs a modest understanding of partition
tables.
The main needs to be able to recognise a partition table on one device
and copy it onto another.

This will be done using pseudo metadata types 'mbr' and 'gpt'.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 19 insertions, 13 deletions

diff --git a/Makefile b/Makefile
index af9804c5..75a8a413 100644
--- a/Makefile
+++ b/Makefile
@@ -99,6 +99,7 @@ OBJS =  mdadm.o config.o policy.o mdstat.o  ReadMe.o util.o Manage.o Assemble.o
 	Create.o Detail.o Examine.o Grow.o Monitor.o dlink.o Kill.o Query.o \
 	Incremental.o \
 	mdopen.o super0.o super1.o super-ddf.o super-intel.o bitmap.o \
+	super-mbr.o \
 	restripe.o sysfs.o sha1.o mapfile.o crc32.o sg_io.o msg.o \
 	platform-intel.o probe_roms.o
 
@@ -106,16 +107,21 @@ SRCS =  mdadm.c config.c policy.c mdstat.c  ReadMe.c util.c Manage.c Assemble.c
 	Create.c Detail.c Examine.c Grow.c Monitor.c dlink.c Kill.c Query.c \
 	Incremental.c \
 	mdopen.c super0.c super1.c super-ddf.c super-intel.c bitmap.c \
+	super-mbr.c \
 	restripe.c sysfs.c sha1.c mapfile.c crc32.c sg_io.c msg.c \
 	platform-intel.c probe_roms.c
 
+INCL = mdadm.h part.h bitmap.h
+
 MON_OBJS = mdmon.o monitor.o managemon.o util.o mdstat.o sysfs.o config.o policy.o \
 	Kill.o sg_io.o dlink.o ReadMe.o super0.o super1.o super-intel.o \
+	super-mbr.o \
 	super-ddf.o sha1.o crc32.o msg.o bitmap.o \
 	platform-intel.o probe_roms.o
 
 MON_SRCS = mdmon.c monitor.c managemon.c util.c mdstat.c sysfs.c config.c policy.c \
 	Kill.c sg_io.c dlink.c ReadMe.c super0.c super1.c super-intel.c \
+	super-mbr.c \
 	super-ddf.c sha1.c crc32.c msg.c bitmap.c \
 	platform-intel.c probe_roms.c
 
@@ -124,7 +130,7 @@ STATICOBJS = pwgr.o
 
 ASSEMBLE_SRCS := mdassemble.c Assemble.c Manage.c config.c policy.c dlink.c util.c \
 	super0.c super1.c super-ddf.c super-intel.c sha1.c crc32.c sg_io.c mdstat.c \
-	platform-intel.c probe_roms.c sysfs.c
+	platform-intel.c probe_roms.c sysfs.c super-mbr.c
 ASSEMBLE_AUTO_SRCS := mdopen.c
 ASSEMBLE_FLAGS:= $(CFLAGS) -DMDASSEMBLE
 ifdef MDASSEMBLE_AUTO
@@ -149,20 +155,20 @@ mdadm : $(OBJS)
 mdadm.static : $(OBJS) $(STATICOBJS)
 	$(CC) $(LDFLAGS) -static -o mdadm.static $(OBJS) $(STATICOBJS)
 
-mdadm.tcc : $(SRCS) mdadm.h
+mdadm.tcc : $(SRCS) $(INCL)
 	$(TCC) -o mdadm.tcc $(SRCS)
 
-mdadm.klibc : $(SRCS) mdadm.h
+mdadm.klibc : $(SRCS) $(INCL)
 	rm -f $(OBJS) 
 	$(CC) -nostdinc -iwithprefix include -I$(KLIBC)/klibc/include -I$(KLIBC)/linux/include -I$(KLIBC)/klibc/arch/i386/include -I$(KLIBC)/klibc/include/bits32 $(CFLAGS) $(SRCS)
 
-mdadm.Os : $(SRCS) mdadm.h
+mdadm.Os : $(SRCS) $(INCL)
 	$(CC) -o mdadm.Os $(CFLAGS) $(LDFLAGS) -DHAVE_STDINT_H -Os $(SRCS)
 
-mdadm.O2 : $(SRCS) mdadm.h mdmon.O2
+mdadm.O2 : $(SRCS) $(INCL) mdmon.O2
 	$(CC) -o mdadm.O2 $(CFLAGS) $(LDFLAGS) -DHAVE_STDINT_H -O2 -D_FORTIFY_SOURCE=2 $(SRCS)
 
-mdmon.O2 : $(MON_SRCS) mdadm.h mdmon.h
+mdmon.O2 : $(MON_SRCS) $(INCL) mdmon.h
 	$(CC) -o mdmon.O2 $(CFLAGS) $(LDFLAGS) $(MON_LDFLAGS) -DHAVE_STDINT_H -O2 -D_FORTIFY_SOURCE=2 $(MON_SRCS)
 
 # use '-z now' to guarantee no dynamic linker interactions with the monitor thread
@@ -173,25 +179,25 @@ msg.o: msg.c msg.h
 test_stripe : restripe.c mdadm.h
 	$(CC) $(CXFLAGS) $(LDFLAGS) -o test_stripe -DMAIN restripe.c
 
-mdassemble : $(ASSEMBLE_SRCS) mdadm.h
+mdassemble : $(ASSEMBLE_SRCS) $(INCL)
 	rm -f $(OBJS)
 	$(DIET_GCC) $(ASSEMBLE_FLAGS) -o mdassemble $(ASSEMBLE_SRCS)  $(STATICSRC)
 
-mdassemble.static : $(ASSEMBLE_SRCS) mdadm.h
+mdassemble.static : $(ASSEMBLE_SRCS) $(INCL)
 	rm -f $(OBJS)
 	$(CC) $(LDFLAGS) $(ASSEMBLE_FLAGS) -static -DHAVE_STDINT_H -o mdassemble.static $(ASSEMBLE_SRCS) $(STATICSRC)
 
-mdassemble.auto : $(ASSEMBLE_SRCS) mdadm.h $(ASSEMBLE_AUTO_SRCS)
+mdassemble.auto : $(ASSEMBLE_SRCS) $(INCL) $(ASSEMBLE_AUTO_SRCS)
 	rm -f mdassemble.static
 	$(MAKE) MDASSEMBLE_AUTO=1 mdassemble.static
 	mv mdassemble.static mdassemble.auto
 
-mdassemble.uclibc : $(ASSEMBLE_SRCS) mdadm.h
+mdassemble.uclibc : $(ASSEMBLE_SRCS) $(INCL)
 	rm -f $(OJS)
 	$(UCLIBC_GCC) $(ASSEMBLE_FLAGS) -DUCLIBC -DHAVE_STDINT_H -static -o mdassemble.uclibc $(ASSEMBLE_SRCS) $(STATICSRC)
 
 # This doesn't work
-mdassemble.klibc : $(ASSEMBLE_SRCS) mdadm.h
+mdassemble.klibc : $(ASSEMBLE_SRCS) $(INCL)
 	rm -f $(OBJS)
 	$(KLIBC_GCC) $(ASSEMBLE_FLAGS) -o mdassemble $(ASSEMBLE_SRCS)
 
@@ -213,8 +219,8 @@ mdadm.conf.man : mdadm.conf.5
 mdassemble.man : mdassemble.8
 	nroff -man mdassemble.8 > mdassemble.man
 
-$(OBJS) : mdadm.h mdmon.h bitmap.h
-$(MON_OBJS) : mdadm.h mdmon.h bitmap.h
+$(OBJS) : $(INCL) mdmon.h
+$(MON_OBJS) : $(INCL) mdmon.h
 
 sha1.o : sha1.c sha1.h md5.h
 	$(CC) $(CFLAGS) -DHAVE_STDINT_H -o sha1.o -c sha1.c