makefile.diff

这是Linux系统下的对UDF文件系统新增的功能

include ../../config.mk

#
# individual diff files are created, but are only for inspection
#
DIFFS=DOC.diff FS.diff INCLUDE.diff MAINTAIN.diff 
FSINDEXDIR=linux/Documentation/filesystems
ED=ed -s

#
# ed. yuck. 
#
FSINDEXSCRIPT="/^sysv\n+1\n.r ../../fragments/00-INDEX.inc\nw\nq\n"
IOCTLSCRIPT="/^'m'\n-1\n.r ../../fragments/ioctl-number.txt.inc\nw\nq\n"
CONFHELPSCRIPT="/^fat fs\n-1\n.r ../../fragments/Configure.help.inc\nw\nq\n"
MAINTSCRIPT="/^UMSDOS\n-1\n.r ../../fragments/MAINTAINERS.inc\nw\nq\n" 
CONFIGINSCRIPT="/bool CONFIG_JOLIET\n+1\n.r ../../fragments/Config.in.inc\nw\nq\n"
FSMAKESCRIPT1="/qnx4\ns/qnx4/qnx4 udf/\nw\nq\n" 
FSMAKESCRIPT2="/CONFIG_AUTOFS\n-1\n.r ../../fragments/Makefile.inc\nw\nq\n" 
FILESYSSCRIPT1="/qnx4_fs.h\na\n\#include <linux/udf_fs.h>\n.\nw\nq\n" 
FILESYSSCRIPT2="/CONFIG_NLS\n-1\n.r ../../fragments/filesystems.c.inc\nw\nq\n" 
FSHSCRIPT1="/qnx4_fs_i.h\na\n\#include <linux/udf_fs_i.h>\n.\nw\nq\n" 
FSHSCRIPT2="/qnx4_fs_sb.h\na\n\#include <linux/udf_fs_sb.h>\n.\nw\nq\n" 
FSHSCRIPT3="/qnx4_i;\na\n\t\tstruct udf_inode_info\t\tudf_i;\n.\nw\nq\n" 
FSHSCRIPT4="/qnx4_sb;\na\n\t\tstruct udf_sb_info\tudf_sb;\n.\nw\nq\n" 

all: builddir

.PHONY : builddir
builddir: 
	@-rm -rf linux linux.old
	@mkdir -p $(FSINDEXDIR) linux.old/$(FSINDEXDIR)
	@mkdir -p linux.old/linux/fs linux.old/linux/include linux/fs/udf
	@mkdir -p linux.old/linux/include/linux linux/include/linux


.PHONY : DOC.diff FS.diff INCLUDE.diff MAINTAIN.diff
DOC.diff: builddir
	@cp ../../doc/udf.txt $(FSINDEXDIR)/udf.txt
	@cp $(LINUX)/Documentation/filesystems/00-INDEX linux.old/$(FSINDEXDIR)
	@cp $(LINUX)/Documentation/filesystems/00-INDEX $(FSINDEXDIR)
	@/bin/echo -e $(FSINDEXSCRIPT) | $(ED) $(FSINDEXDIR)/00-INDEX  >>ed.log 2>&1
	@cp $(LINUX)/Documentation/Configure.help linux.old/linux/Documentation/Configure.help
	@cp $(LINUX)/Documentation/Configure.help linux/Documentation/Configure.help
	@/bin/echo -e $(CONFHELPSCRIPT) | $(ED) linux/Documentation/Configure.help  >>ed.log 2>&1
	@cp $(LINUX)/Documentation/ioctl-number.txt linux.old/linux/Documentation/ioctl-number.txt
	@cp $(LINUX)/Documentation/ioctl-number.txt linux/Documentation/ioctl-number.txt
	@/bin/echo -e $(IOCTLSCRIPT) | $(ED) linux/Documentation/ioctl-number.txt  >>ed.log 2>&1
	@-diff -u --recursive --new-file linux.old/linux/Documentation linux/Documentation > DOC.diff

# this diff will have a 2-line vs 3-line diff header
MAINTAIN.diff: builddir
	@cp $(LINUX)/MAINTAINERS linux.old/linux/MAINTAINERS
	@cp $(LINUX)/MAINTAINERS linux/MAINTAINERS
	@/bin/echo -e $(MAINTSCRIPT) | $(ED) linux/MAINTAINERS  >>ed.log 2>&1
	@-diff -u --recursive --new-file linux.old/linux/MAINTAINERS linux/MAINTAINERS > MAINTAIN.diff

FS.diff: builddir
	@cp ../Makefile.udf linux/fs/udf/Makefile
	@cp ../../linux-$(UTS_SHORT)/*.[ch] linux/fs/udf
	@cp $(LINUX)/fs/Makefile linux.old/linux/fs/Makefile
	@cp $(LINUX)/fs/Makefile linux/fs/Makefile
	@/bin/echo -e $(FSMAKESCRIPT1) | $(ED) linux/fs/Makefile  >>ed.log 2>&1
	@/bin/echo -e $(FSMAKESCRIPT2) | $(ED) linux/fs/Makefile  >>ed.log 2>&1
	@cp $(LINUX)/fs/filesystems.c linux.old/linux/fs/filesystems.c
	@cp $(LINUX)/fs/filesystems.c linux/fs/filesystems.c
	@/bin/echo -e $(FILESYSSCRIPT1) | $(ED) linux/fs/filesystems.c  >>ed.log 2>&1
	@/bin/echo -e $(FILESYSSCRIPT2) | $(ED) linux/fs/filesystems.c  >>ed.log 2>&1
	@cp $(LINUX)/fs/Config.in linux.old/linux/fs/Config.in
	@cp $(LINUX)/fs/Config.in linux/fs/Config.in
	@/bin/echo -e $(CONFIGINSCRIPT) | $(ED) linux/fs/Config.in  >>ed.log 2>&1
	@-diff -u --recursive --new-file linux.old/linux/fs linux/fs > FS.diff

INCLUDE.diff: builddir
	@cp $(LINUX)/include/linux/fs.h linux.old/linux/include/linux/fs.h
	@cp $(LINUX)/include/linux/fs.h linux/include/linux/fs.h
	@/bin/echo -e $(FSHSCRIPT1) | $(ED) linux/include/linux/fs.h  >>ed.log 2>&1
	@/bin/echo -e $(FSHSCRIPT2) | $(ED) linux/include/linux/fs.h  >>ed.log 2>&1
	@/bin/echo -e $(FSHSCRIPT3) | $(ED) linux/include/linux/fs.h  >>ed.log 2>&1
	@/bin/echo -e $(FSHSCRIPT4) | $(ED) linux/include/linux/fs.h  >>ed.log 2>&1
	@cp ../../include/linux/udf_*.h linux/include/linux
	@-diff -u --recursive --new-file linux.old/linux/include linux/include > INCLUDE.diff

#
# diff may return 1, even in normal case
#

.PHONY : udffiles.patch
udffiles.patch: $(DIFFS)
	-diff -u --recursive --new-file linux.old/linux linux > udffiles.patch 
	@echo "* "
	@echo "* ignore errors from diff above"
	@echo "* "

.PHONY : clean
clean: 
	-rm -rf linux linux.old $(DIFFS)