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 # NOTE: If you are not using a RedHat 12.5 or later kernel, then you need to
  12 #       apply the "fixes" patch first, as it fixes a number of bugs in ext3.
  13 #       It will be applied automatically by the extN build process, or you
  14 #       can apply it to the source kernel tree and fix ext3 also.  For chaos22
  15 #       (or other RH < 12.5 kernels) use the "chaos22" patch instead.
  16 EXTN_FIXES = patch-2.4.18-chaos22
  17 #EXTN_FIXES = ext3-2.4.18-fixes.diff
  18 EXTNP = htree-ext3-2.4.18.diff linux-2.4.18ea-0.8.26.diff ext3-2.4-ino_t.diff
  19 EXTNP+= ext3-2.4.18-ino_sb_macro.diff extN-misc-fixup.diff extN-noread.diff
  20 EXTNP+= extN-wantedi.diff extN-san.diff extN-2.4.18-ino_sb_fixup.diff
  21 #EXTNP+= extN-iget-debug.diff
  22 EXTNC = balloc.c bitmap.c dir.c file.c fsync.c ialloc.c inode.c ioctl.c
  23 EXTNC+= namei.c super.c symlink.c
  24 EXTNI = extN_fs.h extN_fs_i.h extN_fs_sb.h extN_jbd.h quotaops.h
  25 EXTN_EXTRA = include/linux/xattr.h include/linux/extN_xattr.h fs/extN/xattr.c
  26 EXTN_EXTRA += include/linux/quotaops.h
  27 extN_SOURCES = $(EXTNC) xattr.c # punch.c
  28 extN_DEPENDENCIES = patch-stamp
  29 EXTRA_DIST = $(EXTNP) $(EXTN_FIXES) \
  30         ext3-largefile.diff extN-2.4.18-exports.diff \
  31         ext3-use-after-free.diff ext3-unmount_sync.diff $(wildcard extN.patch-*)
  32 DISTCLEANFILES = -r $(extN_SOURCES) sed-stamp patch-stamp *.orig *.rej
  33 SUB=-e "s/ext3/extN/g" -e "s/EXT3/EXTN/g" -e "s/extern __inline__/static inline/"
  34
  35 distclean:
  36         cd .. && rm -f $(EXTN_EXTRA)
  37
  38 include $(top_srcdir)/Rules
  39
  40 # Following 2 vars are for buildind outside the source tree.
  41 extN_orig = $(top_builddir)/$(subdir)/extN.orig
  42 extN_include_orig = $(top_builddir)/$(subdir)/extN-include.orig
  43
  44 # Create a fresh extN patch.
  45 # This is for when the patch-stamp target fails for your kernel.
  46 # Just edit the files until you like them, then do `make diff', and
  47 # it will create a specialized patch for your particular kernel.
  48 # Check it in, and the build should work for you without disrupting
  49 # the other developers.
  50 # Of course, the ideal is to merge changes so that the default patch
  51 # set works for nearly everybody.  This is mainly for damage control.
  52
  53 diff:
  54         $(RM) extN.patchT
  55         l='$(EXTNC)'; for f in $$l; do                                        \
  56           echo "$$f";                                                         \
  57           (diff -u $(extN_orig)/$$f extN/$$f) >> extN.patchT;                 \
  58           test $$? -le 1 || exit 1;                                           \
  59         done
  60         l='$(EXTNI)'; for f in $$l; do                                        \
  61           echo "$$f";                                                         \
  62           (diff -u $(extN_include_orig)/$$f $(top_srcdir)/include/linux/$$f)>>extN.patchT;\
  63           test $$? -le 1 || exit 1;                                           \
  64         done
  65         l='$(EXTN_EXTRA)'; for f in $$l; do                                   \
  66           f=`echo "$$f" | sed 's%^fs/%%'`;                                    \
  67           echo "$$f";                                                         \
  68           (cd $(top_srcdir) &&                                                \
  69             diff -u /dev/null $$f) >> extN.patchT;                            \
  70           test $$? -le 1 || exit 1;                                           \
  71         done
  72         mv -f extN.patchT $(top_builddir)/$(subdir)/extN.patch-$(RELEASE)
  73         echo "Don't forget to add $(srcdir)/extN.patch-$(RELEASE) to CVS!"
  74
  75 .PHONY: diff
  76
  77 # Just do the SUB transformation on all our source files.
  78 sed-stamp:
  79         $(RM) $@
  80         rm -rf $(extN_orig) $(extN_include_orig)
  81         mkdir $(extN_orig) $(extN_include_orig)
  82         list='$(EXTNC)'; for f in $$list; do                                  \
  83           echo "creating $(extN_orig)/$$f";                                   \
  84           sed $(SUB) $(LINUX)/fs/ext3/$$f > $(extN_orig)/$$f;                 \
  85         done
  86         list='$(EXTNI)'; for i in $$list; do                                  \
  87           s=`echo $$i | sed "s/extN/ext3/"`;                                  \
  88           echo "creating $(extN_include_orig)/$$i";                           \
  89           sed $(SUB) $(LINUX)/include/linux/$$s > $(extN_include_orig)/$$i;   \
  90         done
  91         echo timestamp > $@
  92
  93
  94 # Patch the kernel files with our ext3 patches.  We need to go through some
  95 # extra hoops because the include files are in a different tree and because
  96 # patch likes to make local copies of files with (sym)links when it is patching
  97 # them.  To avoid this, we copy/patch in the source dir instead of the build
  98 # dir (if they are different).
  99 # We also want to preserve the pristine transformed files for the diff target.
 100
 101
 102
 103 patch-stamp: sed-stamp $(EXTNP)
 104         test -e $(top_builddir)/include/linux || mkdir -p $(top_builddir)/include/linux
 105         cp -a $(extN_orig)/* $(top_builddir)/$(subdir)
 106         cp -a $(extN_include_orig)/* $(top_builddir)/include/linux
 107         test -e $(top_builddir)/fs || ln -s . $(top_builddir)/fs
 108         list='$(EXTN_EXTRA)'; for f in $$list; do $(RM) $(top_builddir)/$$f; done
 109         if [ -f $(srcdir)/extN.patch-$(RELEASE) ]; then                       \
 110           echo "applying patch $(srcdir)/extN.patch-$(RELEASE)";              \
 111           (cd $(top_builddir) && patch -p0) < $(srcdir)/extN.patch-$(RELEASE);\
 112         else                                                                  \
 113           list='$(EXTNP)'; \
 114           grep -q "err = extN_mark_inode_dirty" $(extN_orig)/namei.c ||       \
 115             list="ext3-use-after-free.diff $$list";                           \
 116           sed '/i_version/q' $(extN_orig)/namei.c | tail -2 |                 \
 117             grep -q extN_mark_inode_dirty && list="$(EXTN_FIXES) $$list";     \
 118           grep -q "if (do_sync_supers)" $(extN_orig)/super.c &&               \
 119             list="ext3-unmount_sync.diff $$list";                             \
 120           grep -q "ext3_journal_start(inode, 2)" $(extN_orig)/inode.c ||      \
 121             list="ext3-largefile.diff $$list";                                \
 122           grep -q "EXPORT_SYMBOL(extN_bread)" $(extN_orig)/super.c ||         \
 123             list="$$list extN-2.4.18-exports.diff";                           \
 124           for p in $$list; do                                                 \
 125             echo "applying patch $$p";                                        \
 126             sed $(SUB) $(srcdir)/$$p |                                        \
 127               (cd $(top_builddir) && patch -p1) || exit $$?;                  \
 128           done;                                                               \
 129         fi
 130         echo timestamp > $@
 131
 132
 133
 134
 135 $(extN_SOURCES) $(EXTNI) $(EXTN_EXTRA): patch-stamp
 136
 137 # Don't distribute any patched files.
 138 dist-hook:
 139         $(RM) $(top_srcdir)/fs
 140         list='$(EXTNC)'; for f in $$list; do $(RM) $(distdir)/$$f; done
 141         list='$(EXTNI)'; for i in $$list; do                                  \
 142           $(RM) $(distdir)/../include/linux/$$i;                              \
 143         done
 144         list='$(EXTN_EXTRA)'; for f in $$list; do $(RM) $(distdir)/../$$f; done