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Thomas Petazzoni f9cffb6af4 binutils: replace hard-links with soft-links to fix rpath
binutils installs its binaries both as bin/<tuple>-<tool> and as
<tuple>/bin/<tool>, and hardlinks are used to reduce disk space
consumption. This causes a problem for host-binutils with our rpath
fixing logic done by "make sdk".

Indeed, the fix-rpath script starts by fixing up the rpath of
bin/<tuple>-<tool>, and sets the RPATH to $ORIGIN/../lib/. Then
fix-rpath moves on to <tuple>/bin/<tool>, and doesn't find the library
the tool depends on, and clears the RPATH. The result is that the
binutils tool are not usable.

Note that this is only visible currently on the ARC architecture,
because on this architecture, binutils is fetched from git, which
causes host-flex to be built, and some binutils tools to use the libfl
shared library. Therefore, the binutils tools don't use just the
standard C library (which is provided by the system) but also libfl
from $(HOST_DIR)/lib, and therefore if the RPATH isn't set correctly,
those tools don't work properly.

In order to address this, this comit adds a post-install hook to
host-binutils that replaces those hard links by symbolic links. It is
worth mentioning that library loading and RPATH usage occurs *after*
resolving the symbolic links, which makes this solution work.

Fixes:

  http://autobuild.buildroot.net/results/b2562b05d397d4e1ffe0f8d2f4ce4c84ab6feae1/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-05-06 22:16:59 +02:00
arch arch: drop BR2_BINFMT_FLAT_SEP_DATA support 2018-04-15 22:04:09 +02:00
board configs/freescale_imx31_3stack: Remove target 2018-05-06 08:59:45 +02:00
boot boot/uboot: default to kconfig buildsystem for latest version 2018-04-25 21:35:35 +02:00
configs configs/freescale_imx6ulevk: Remove target 2018-05-06 08:59:53 +02:00
docs docs/website: update for 2018.02.2 2018-05-04 19:15:31 +02:00
fs fs/squashfs: add zstd support 2018-04-25 23:39:04 +02:00
linux linux: ensure correct make targets are used for cuImage/simpleImage.<dtb> 2018-05-06 17:35:00 +02:00
package binutils: replace hard-links with soft-links to fix rpath 2018-05-06 22:16:59 +02:00
support download/git: always do full-clone 2018-05-01 21:22:28 +02:00
system skeleton: add /dev/fd, /dev/std{in, out, err} symlinks for static /dev on readonly rootfs 2018-05-01 21:53:45 +02:00
toolchain toolchain-external-custom: allow specifying relative path to binaries 2018-04-19 23:04:44 +02:00
utils scanpypi: add support for the new PyPI infrastructure 2018-04-18 17:11:47 +02:00
.defconfig arch: remove support for sh64 2016-09-08 22:15:15 +02:00
.flake8 .flake8: ignore utils/diffconfig 2018-03-13 22:37:54 +01:00
.gitignore update gitignore 2013-05-04 12:41:55 +02:00
.gitlab-ci.yml .gitlab-ci.yml: update after removal of freescale defconfigs 2018-05-06 17:36:37 +02:00
.gitlab-ci.yml.in .gitlab-ci.yml: extend check-package test to Config.* files 2018-04-01 10:16:35 +02:00
CHANGES Update for 2017.02.11 2018-04-12 18:37:41 +02:00
Config.in Config.in: add BR2_HOST_GCC_AT_LEAST_8 2018-05-02 14:50:14 +02:00
Config.in.legacy legacy: remove options made legacy 5 years ago 2018-04-16 16:21:14 +02:00
COPYING COPYING: add exception about patch licensing 2016-02-26 19:50:13 +01:00
DEVELOPERS DEVELOPERS: Add myself to some packages 2018-05-02 21:33:39 +02:00
Makefile Makefile: Update mtime of $(TARGET_DIR)/usr in target-finalize 2018-05-03 22:12:21 +02:00
Makefile.legacy Remove BR2_DEPRECATED 2016-10-15 23:14:45 +02:00
README README: add reference to submitting-patches 2016-02-01 19:16:08 +01:00

Buildroot is a simple, efficient and easy-to-use tool to generate embedded
Linux systems through cross-compilation.

The documentation can be found in docs/manual. You can generate a text
document with 'make manual-text' and read output/docs/manual/manual.text.
Online documentation can be found at http://buildroot.org/docs.html

To build and use the buildroot stuff, do the following:

1) run 'make menuconfig'
2) select the target architecture and the packages you wish to compile
3) run 'make'
4) wait while it compiles
5) find the kernel, bootloader, root filesystem, etc. in output/images

You do not need to be root to build or run buildroot.  Have fun!

Buildroot comes with a basic configuration for a number of boards. Run
'make list-defconfigs' to view the list of provided configurations.

Please feed suggestions, bug reports, insults, and bribes back to the
buildroot mailing list: buildroot@buildroot.org
You can also find us on #buildroot on Freenode IRC.

If you would like to contribute patches, please read
https://buildroot.org/manual.html#submitting-patches