Copied from linux kernel, 'make W=1' will build with various additional
warnings turned on. There are 3 levels, combinations are possible. The
build is quite noisy, not all warnings need to be fixed.
A specific warning can be turned on by 'make EXTRA_CFLAGS=-Wsomething'.
Signed-off-by: David Sterba <dsterba@suse.com>
In newer distros (ubuntu 15.10, fedora rawhide) the binutils
ar uses the new D flag per default to build deterministic
binaries.
Without this patch the following warning is issued, when
building btrfs-progs:
[AR] libbtrfs.a
/usr/bin/ar: `u' modifier ignored since `D' is the default (see `U')
For libtrfs.a performance benefit of the u option can be neglected,
so drop the u option and silence the warning.
In the future one might want to explicitly add the D option anyway.
Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: David Sterba <dsterba@suse.com>
Allow fine tuned build options via EXTRA_CFLAGS and EXTRA_LDFLAGS
variables. Useful for additional debugging flags or warnings etc.
Signed-off-by: David Sterba <dsterba@suse.com>
We'd like to run each class of tests separately. There were some missing
prerequisities that should be/are verified by the tests, makefile rules
have been synced.
Signed-off-by: David Sterba <dsterba@suse.cz>
Same thing as clang cleanup patch commit 040b3f11ba
"btrfs-progs: Makefile: Move linker only option to LDFLAGS"
But the move to autoconfig seems using old Makefile.
So do it again.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Introduce new find-root.[ch] infrastructure which has better tree root
judgment and uses much less codes to do it.
The new infrastructure will only record tree blocks with highest level
among its generation, and do better judgment whether the found tree block
is the desired one(level + generation check other than the original
generation only check).
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Commit 878affd47d ("btrfs-progs: build more utilities by default")
resulted in installation of new utilities, that were not installed
before. Make them build but do not install them.
Signed-off-by: David Sterba <dsterba@suse.cz>
Keep only flags that are required to build properly, current fine
tunings are moved to the optional defaults in configure and can be
overriden by the user.
Signed-off-by: David Sterba <dsterba@suse.cz>
Commit 2c2e6c4e12e5af15fd ("btrfs-progs: autoconf: cleanup compilation
flags usage") added the shared library to the linking command so the
resulting binaries depend dependent on libbtrfs.so. This is not
intended.
Reported-by: WorMzy Tykashi <wormzy.tykashi@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
The installed symlink points to the absolute path of btrfs,
a relative link is enough.
Reported-by: WorMzy Tykashi <wormzy.tykashi@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Lost in the conversion and breaks the build unless set explicitly.
Reported-by: WorMzy Tykashi <wormzy.tykashi@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Add btrfs_get_extent() and btrfs_punch_hole() for btrfs-progs.
Btrfs_get_extent() will act much like kernel one, return the first
extent that covers the given range.
The difference will be that progs btrfs_get_extent() can't handle
no-holes feature, which means caller should handle it carefully.
Btrfs_punch_hole() will punch a hole in given range of given inode,
however it differs from kernel one since it won't zero any page or drop
any extents if there is any extent in the hole range.
These functions are mainly used for later I_ERR_FILE_EXTENT_DISCOUNT
repair function.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
- add rule to generated version.h when any relevant stuff changed
- add rule to clean generated files on "make clean-all"
Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
- define basic default CFLAGS in configure.ac, because:
* autoconf default is -g -O2, but btrfs uses -g -O1
* it's better to follow autoconf; standard way to modify
CFLAGS is to call: CFLAGS="foo bar" ./configure
- move all flags to one place in Makefile.in
- don't use AM_CFLAGS, the CFLAGS and STATIC_CFLAGS are enough
- don't mix objects and flags in $LIBS, it's more readable to
add $(libs) to make rules
Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
The original homemade solution is unnecessary, autotools provides better
infrastructure to generate files.
Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
- the header file is generated by ./configure, the standard autotools
way is to use -include config.h on compiler command line rather than
include the file directly from code
- remove _GNU_SOURCE from code, the macros is already defined in config.h
by AC_USE_SYSTEM_EXTENSIONS autoconf macro
Signed-off-by: Karel Zak <kzak@redhat.com>
[_GNU_SOURCE changes already done]
Signed-off-by: David Sterba <dsterba@suse.cz>
- add ./autogen.sh script (necessary after git clean/clone)
- add ./configure.ac
- copy autotool helper scripts from automake
- modify version.sh to be usable from the configure script
- rename Makefile to Makefile.in and use basic variables from configure.ac
Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
