[Buildroot] [PATCH] binutils: replace hard-links with soft-links to fix rpath
peter at korsgaard.com
Sun May 6 20:18:05 UTC 2018
>>>>> "Thomas" == Thomas Petazzoni <thomas.petazzoni at bootlin.com> writes:
> 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.
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
Bye, Peter Korsgaard
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