[f2fs-dev] AArch64 static build link order fix

[f2fs-dev] AArch64 static build link order fix

[Chris Ruehl]

Hi,

Had a recently a cross compile to arm64 for f2fs-tools and run into
a couple of issues and want to share the resolving.

I running on Debian buster, and using the tool-chain from them
COLLECT_GCC=/usr/bin/aarch64-linux-gnu-gcc
gcc version 8.3.0 (Debian 8.3.0-2)

1) if HAVE_LIBSELINUX is enabled in the config.h
fsck will fail to build missing the libraries
* libsepol
* libpcre
* libpthread
I add this temporally in the Makefile, it must be a fix done in the configure 
process
** add the link path which is missing for cross compilation too.
orig:
libselinux_LIBS = -lselinux
fix:
libselinux_LIBS = -L/usr/lib/aarch64-linux-gnu -lselinux -lsepol -lprce -lpthread

Sadly the selinux static library us dynamic function from the glibc throw a 
warning that the glibc shared library version is needed on runtime! So I removed
the SELINUX support in my static build comment out HAVE_LIBSELINUX.


2) mkfs the link order for blkid & uuid is wrong, leads to unresolved objects
below change fix it.

diff --git a/mkfs/Makefile.am b/mkfs/Makefile.am
index 83e2389..d3206e8 100644
--- a/mkfs/Makefile.am
+++ b/mkfs/Makefile.am
@@ -6,7 +6,8 @@ sbin_PROGRAMS = mkfs.f2fs
  noinst_HEADERS = f2fs_format_utils.h
  include_HEADERS = $(top_srcdir)/include/f2fs_fs.h
  mkfs_f2fs_SOURCES = f2fs_format_main.c f2fs_format.c f2fs_format_utils.c
-mkfs_f2fs_LDADD = ${libuuid_LIBS} ${libblkid_LIBS} $(top_builddir)/lib/libf2fs.la
+mkfs_f2fs_LDADD = ${libblkid_LIBS} ${libuuid_LIBS} $(top_builddir)/lib/libf2fs.la
+mkfs_f2fs_LDFLAGS = -all-static

  lib_LTLIBRARIES = libf2fs_format.la
  libf2fs_format_la_SOURCES = f2fs_format_main.c f2fs_format.c f2fs_format_utils.c


The outcome of my cross compilation works fine.

May someone run in the same problem, and benefit from my fix.

Have a nice one!

Chris

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