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The arm-trusted-firmware package builds a host tool called "fiptool", which is used during the build process of arm-trusted-firmware itself. This tool links against the OpenSSL host library, and therefore needs to be built with the correct RPATH pointing to $HOST_DIR/lib. This is why commita957d9a90a("boot/arm-trusted-firmware: build fiptool separately with dependency o n host-openssl") added the ARM_TRUSTED_FIRMWARE_BUILD_FIPTOOL variable, which builds the fiptool tool first, with the right variables set, before invoking the full build of TF-A. This ensured that fiptool was built with the correct RPATH. However, more recent versions of TF-A have modified their Makefile machinery, and fiptool is being rebuilt even if it was built before. Unfortunately, this rebuild is no longer done with the right flags, so we end up with a fiptool binary that no longer has the right RPATH, and fiptool fails to find the OpenSSL libraries from $HOST_DIR/lib. In order to fix this, we take a different approach: we do not build fiptool separately first, but we inject the necessary flags through the HOSTCC variable. Indeed, there's no HOST_LDFLAGS or HOST_LDLIBS variable or similar that would allow us to pass the -Wl,-rpath flag that is needed. Shoe-horning this flag into HOSTCC gets the job done, and actually simplifies our arm-trusted-firmware.mk. This patch break the compatibility with version prior to 1.4 (upstream commit 72610c4102990 ("build: Introduce HOSTCC flag")). v1.4 is very old (July 2017), not used anymore in-tree and probably not used anymore outside the tree. Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com> Co-authored-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> (cherry picked from commite7d16c35ae) Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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 OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches