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zfs/lib/libefi/Makefile.am

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Add build system Add autoconf style build infrastructure to the ZFS tree. This includes autogen.sh, configure.ac, m4 macros, some scripts/*, and makefiles for all the core ZFS components.
2010-08-26 18:22:58 +00:00
include $(top_srcdir)/config/Rules.am
Combine libraries: spl, avl, efi, share, unicode. These libraries, which are an artifact of the ZoL development process, conflict with packages that are already in distribution: * libspl: SPL Programming Language * libavl: AVL for Linux * libefi: GRUB And these libraries are potential conflicts: * libshare: the Linux Mount Manager * libunicode: Perl and Python Recompose these five ZoL components into the four libraries that are conventionally provided by Solaris and FreeBSD systems: + libnvpair + libuutil + libzpool + libzfs This change resolves the name conflict, makes ZoL more compatible with existing software that uses autotools to detect ZFS, and allows pkg-zfs to better reflect the official Debian kFreeBSD packaging. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes: #430
2011-12-31 23:30:52 +00:00
noinst_LTLIBRARIES = libefi.la
Add build system Add autoconf style build infrastructure to the ZFS tree. This includes autogen.sh, configure.ac, m4 macros, some scripts/*, and makefiles for all the core ZFS components.
2010-08-26 18:22:58 +00:00
Support parallel build trees (VPATH builds) Build products from an out of tree build should be written relative to the build directory. Sources should be referred to by their locations in the source directory. This is accomplished by adding the 'src' and 'obj' variables for the module Makefile.am, using relative paths to reference source files, and by setting VPATH when source files are not co-located with the Makefile. This enables the following: $ mkdir build $ cd build $ ../configure \ --with-spl=$HOME/src/git/spl/ \ --with-spl-obj=$HOME/src/git/spl/build $ make -s This change also has the advantage of resolving the following warning which is generated by modern versions of automake. Makefile.am:00: warning: source file 'xxx' is in a subdirectory, Makefile.am:00: but option 'subdir-objects' is disabled Signed-off-by: Turbo Fredriksson <turbo@bayour.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1082
2014-06-09 21:55:31 +00:00
USER_C = \
rdwr_efi.c
Fixes for make dist Reduce the usage of EXTRA_DIST. If files are conditionally included in _SOURCES, _HEADERS etc, automake is smart enough to dist all files that could possibly be included, but this does not apply to EXTRA_DIST, resulting in make dist depending on the configuration. Add some files that were missing altogether in various Makefile's. The changes to disted files in this commit (excluding deleted files): +./cmd/zed/agents/README.md +./etc/init.d/README.md +./lib/libspl/os/freebsd/getexecname.c +./lib/libspl/os/freebsd/gethostid.c +./lib/libspl/os/freebsd/getmntany.c +./lib/libspl/os/freebsd/mnttab.c -./lib/libzfs/libzfs_core.pc -./lib/libzfs/libzfs.pc +./lib/libzfs/os/freebsd/libzfs_compat.c +./lib/libzfs/os/freebsd/libzfs_fsshare.c +./lib/libzfs/os/freebsd/libzfs_ioctl_compat.c +./lib/libzfs/os/freebsd/libzfs_zmount.c +./lib/libzutil/os/freebsd/zutil_compat.c +./lib/libzutil/os/freebsd/zutil_device_path_os.c +./lib/libzutil/os/freebsd/zutil_import_os.c +./module/lua/README.zfs +./module/os/linux/spl/README.md +./tests/README.md +./tests/zfs-tests/tests/functional/cli_root/zfs_clone/zfs_clone_rm_nested.ksh +./tests/zfs-tests/tests/functional/cli_root/zfs_send/zfs_send_encrypted_unloaded.ksh +./tests/zfs-tests/tests/functional/inheritance/README.config +./tests/zfs-tests/tests/functional/inheritance/README.state +./tests/zfs-tests/tests/functional/rsend/rsend_016_neg.ksh +./tests/zfs-tests/tests/perf/fio/sequential_readwrite.fio Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Closes #10501
2020-06-25 18:14:54 +00:00
libefi_la_SOURCES = $(USER_C)
Generate libraries with correct DT_NEEDED entries Libraries that depend on other libraries should list them in ELF's DT_NEEDED field so that programs linking to them do not need to specify those libraries unless they depend on them as well. This is not the case in the current code and the consequence is that anything that needs a library must know its dependencies. This is fragile and caused GRUB2's configure script to break when a dependency was added on libblkid in libzfs. This resolves that problem by using LIBADD/LDADD to specify libraries in Makefile.am instead of LDFLAGS. This ensures that proper DT_NEEDED entries are generated and prevents GRUB2's configure script from breaking in the presence of a libblkid dependency. This also removes unneeded dependencies from various files. Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #1751
2013-09-26 17:42:41 +00:00
Cleanup linking I noticed during code review of zfsonlinux/zfs#4385 that the author of a commit had peppered the various Makefile.am files with `$(TIRPC_LIBS)` when putting it into `lib/libspl/Makefile.am` should have sufficed. Upon further examination, it seems that he had copied what we do with `$(ZLIB)`. We also have a bit of that with `-ldl` too. Unfortunately, what we do is wrong, so lets fix it to set a good example for future contributors. In addition, we have multiple `-lz` and `-luuid` passed to the compiler because each `AC_CHECK_LIB` adds it to `$LIBS`. That is somewhat annoying to see, so we switch to `AC_SEARCH_LIBS` to avoid it. This is consistent with the recommendation to use `AC_SEARCH_LIBS` over `AC_CHECK_LIB` by autotools upstream: https://www.gnu.org/software/autoconf/manual/autoconf-2.66/html_node/Libraries.html In an ideal world, this would translate into improvements in ELF's `DT_NEEDED` entries, but that is not the case because of a couple of bugs in libtool. The first bug causes libtool to overlink by using static link dependencies for dynamic linking: https://wiki.mageia.org/en/Overlinking_issues_in_packaging#libtool_issues The workaround for this should be to pass `-Wl,--as-needed` in `LDFLAGS`. That leads us to the second bug, where libtool passes `LDFLAGS` after the libraries are specified and `ld` will only honor `--as-needed` on libraries specified before it: https://sigquit.wordpress.com/2011/02/16/why-asneeded-doesnt-work-as-expected-for-your-libraries-on-your-autotools-project/ There are a few possible workarounds for the second bug. One is to either patch the compiler spec file to specify `-Wl,--as-needed` or pass `-Wl,--as-needed` via `CC` like `CC='gcc -Wl,--as-needed'` so that it is specified early. Another is to patch ltmain.sh like Gentoo does: https://gitweb.gentoo.org/repo/gentoo.git/tree/eclass/ELT-patches/as-needed Without one of those workarounds, this cleanup provides no benefit in terms of `DT_NEEDED` entry generation. It should still be an improvement because it nicely simplifies the code while encouraging good habits when patching autotools scripts. Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #4426
2016-03-15 17:28:07 +00:00
libefi_la_LIBADD = $(LIBUUID)