lustre/extN/Makefile.am

   1 # Copyright (C) 2001  Cluster File Systems, Inc.
   2 #
   3 # This code is issued under the GNU General Public License.
   4 # See the file COPYING in this distribution
   5
   6 DEFS=-DEXPORT_SYMTAB
   7 MODULE = extN
   8 modulefs_DATA = extN.o
   9 EXTRA_PROGRAMS = extN
  10
  11 EXTNP =
  12 # NOTE: If you are not using a RedHat 12.5 or later kernel, then you need to
  13 #       apply the following patch first, as it fixes a number of bugs in ext3.
  14 #       You can either apply it as part of the extN build by uncommenting the
  15 #       line below, or apply it to the source kernel tree and fix ext3 also.
  16 # EXTNP = ext3-2.4.18-fixes.diff
  17 EXTNP+= htree-ext3-2.4.18.diff linux-2.4.18ea-0.8.26.diff
  18 EXTNP+= ext3-2.4.18-ino_sb_macro.diff extN-misc-fixup.diff
  19 EXTNC = balloc.c bitmap.c dir.c file.c fsync.c ialloc.c inode.c ioctl.c
  20 EXTNC+= namei.c super.c symlink.c
  21 EXTNI = extN_fs.h extN_fs_i.h extN_fs_sb.h extN_jbd.h
  22 EXTN_EXTRA = include/linux/xattr.h include/linux/extN_xattr.h fs/extN/xattr.c
  23 extN_SOURCES = $(EXTNC) xattr.c # punch.c
  24 extN_DEPENDENCIES = patch-stamp
  25 EXTRA_DIST = $(EXTNP) extN-2.4.18-ino_sb_fixup.diff extN-2.4.18-exports.diff \
  26         $(wildcard extN.patch-*)
  27 DISTCLEANFILES = -r $(extN_SOURCES) sed-stamp patch-stamp *.orig *.rej
  28 SUB=-e "s/ext3/extN/g" -e "s/EXT3/EXTN/g"
  29
  30 distclean:
  31         cd .. && rm -f $(EXTN_EXTRA)
  32
  33 include $(top_srcdir)/Rules
  34
  35 # Create a fresh extN patch.
  36 # This is for when the patch-stamp target fails for your kernel.
  37 # Just edit the files until you like them, then do `make diff', and
  38 # it will create a specialized patch for your particular kernel.
  39 # Check it in, and the build should work for you without disrupting
  40 # the other developers.
  41 # Of course, the ideal is to merge changes so that the default patch
  42 # set works for nearly everybody.  This is mainly for damage control.
  43 diff:
  44         $(RM) extN.patchT
  45         l='$(EXTNC)'; for f in $$l; do                                        \
  46           echo "$$f";                                                         \
  47           (cd $(top_srcdir) &&                                                \
  48             diff -u extN/extN.orig/$$f extN/$$f) >> extN.patchT;              \
  49           test $$? -le 1 || exit 1;                                           \
  50         done
  51         l='$(EXTNI)'; for f in $$l; do                                        \
  52           echo "$$f";                                                         \
  53           (cd $(top_srcdir) &&                                                \
  54             diff -u extN/extN-include.orig/$$f include/linux/$$f)>>extN.patchT;\
  55           test $$? -le 1 || exit 1;                                           \
  56         done
  57         l='$(EXTN_EXTRA)'; for f in $$l; do                                   \
  58           f=`echo "$$f" | sed 's%^fs/%%'`;                                    \
  59           echo "$$f";                                                         \
  60           (cd $(top_srcdir) &&                                                \
  61             diff -u /dev/null $$f) >> extN.patchT;                            \
  62           test $$? -le 1 || exit 1;                                           \
  63         done
  64         mv -f extN.patchT $(srcdir)/extN.patch-$(RELEASE)
  65 .PHONY: diff
  66
  67 # Just do the SUB transformation on all our source files.
  68 sed-stamp:
  69         $(RM) $@
  70         rm -rf extN.orig extN-include.orig
  71         mkdir extN.orig extN-include.orig
  72         list='$(EXTNC)'; for f in $$list; do                                  \
  73           echo "creating extN.orig/$$f";                                      \
  74           sed $(SUB) $(LINUX)/fs/ext3/$$f > extN.orig/$$f;                    \
  75         done
  76         list='$(EXTNI)'; for i in $$list; do                                  \
  77           s=`echo $$i | sed "s/extN/ext3/"`;                                  \
  78           echo "creating extN.orig-include/$$i";                              \
  79           sed $(SUB) $(LINUX)/include/linux/$$s > extN-include.orig/$$i;      \
  80         done
  81         echo timestamp > $@
  82
  83 # Patch the kernel files with our ext3 patches.  We need to go through some
  84 # extra hoops because the include files are in a different tree and because
  85 # patch likes to make local copies of files with (sym)links when it is patching
  86 # them.  To avoid this, we copy/patch in the source dir instead of the build
  87 # dir (if they are different).
  88 # We also want to preserve the pristine transformed files for the diff target.
  89 patch-stamp: sed-stamp $(EXTNP)
  90         cp -a extN.orig/* $(srcdir)
  91         cp -a extN-include.orig/* $(top_srcdir)/include/linux
  92         test -e $(top_srcdir)/fs || ln -s . $(top_srcdir)/fs
  93         list='$(EXTN_EXTRA)'; for f in $$list; do $(RM) $(top_srcdir)/$$f; done
  94         if [ -f $(srcdir)/extN.patch-$(RELEASE) ]; then                       \
  95           echo "applying patch $(srcdir)/extN.patch-$(RELEASE)";              \
  96           (cd $(top_srcdir) && patch -p0) < $(srcdir)/extN.patch-$(RELEASE);  \
  97         else                                                                  \
  98           echo "If first patch fails, read NOTE in extN/Makefile.am";         \
  99           list='$(EXTNP)'; for p in $$list; do                                \
 100             echo "applying patch $$p";                                        \
 101             sed $(SUB) $(srcdir)/$$p |                                        \
 102               (cd $(top_srcdir) && patch -p1) || exit $$?;                    \
 103           done;                                                               \
 104           echo "It is OK if the next patch says it is already applied";       \
 105           echo "applying patch $(srcdir)/extN-2.4.18-exports.diff";           \
 106           (cd $(top_srcdir) &&                                                \
 107             patch -N -p1) < $(srcdir)/extN-2.4.18-exports.diff;               \
 108           echo "applying patch $(srcdir)/extN-2.4.18-ino_sb_fix.diff";        \
 109           (cd $(top_srcdir) &&                                                \
 110             patch -p1) < $(srcdir)/extN-2.4.18-ino_sb_fixup.diff || exit $$?; \
 111         fi
 112         echo timestamp > $@
 113
 114 $(extN_SOURCES) $(EXTNI) $(EXTN_EXTRA): patch-stamp
 115
 116 # Don't distribute any patched files.
 117 dist-hook:
 118         $(RM) $(top_srcdir)/fs
 119         list='$(EXTNC)'; for f in $$list; do $(RM) $(distdir)/$$f; done
 120         list='$(EXTNI)'; for i in $$list; do                                  \
 121           $(RM) $(distdir)/../include/linux/$$i;                              \
 122         done
 123         list='$(EXTN_EXTRA)'; for f in $$list; do $(RM) $(distdir)/../$$f; done