@@ -616,6 +616,21 @@ endef
TARGET_FINALIZE_HOOKS += PURGE_LOCALES
endif
+# RPATH fixing
+# - The host hook sets RPATH in host ELF binaries, using relative paths to the
+# library locations.
+# - The target hook sanitizes RPATH in target ELF binaries, removing paths
+# pointing to package's build directories or the sysroot's libdirs.
+PACKAGES += host-patchelf
+
+define HOST_SANITIZE_RPATH_HOOK
+ PATCHELF=$(HOST_DIR)/usr/bin/patchelf \
+ READELF=readelf \
+ $(TOPDIR)/support/scripts/fix-rpath host $(HOST_DIR)
+endef
+
+TARGET_FINALIZE_HOOKS += HOST_SANITIZE_RPATH_HOOK
+
$(TARGETS_ROOTFS): target-finalize
target-finalize: $(PACKAGES)
This patch adds host-patchelf as a target-finalize dependency, and introduces the HOST_SANITIZE_RPATH_HOOK hook to fix the ELF files' RPATH from the HOST_DIR location (excluding the sysroot). After running this hook, the RPATH from any host ELF files is relative to the binary location itself. Notes: - we avoid to fix RPATH in the sysroot. - we do not try to fix RPATH in the external toolchain installation location as they may have been built in a way, this is already correct; furthermore, fixing RPATH in those programs may result in breaking them. - the whole host directory is processed because a number of host-package install programs that could be useful in places different from $(HOST_DIR)/{bin,sbin,usr/bin,usr/sbin}. - the shared libraries are also processed in case they have a 'main' function. As a step toward a fully relocatable SDK, this change allows to get the toolchain relocatable, but not yet the whole SDK. Signed-off-by: Samuel Martin <s.martin49@gmail.com> --- changes v6->v7: - remove the DEBUG env. var. specific handling in Makefile, now just place the variable in the Buildroot environment, to enable debug logs. This is documented in a follow-up patch of this series. changes v5->v6: - update for the new script version - add debug mode support changes v4->v5: - add verbose support changes v3->v4: - add host-patchelf to PACKAGES instead of target-finalize (Baruch) - add comment changes v2->v3: - move hook in Makefile (Baruch) --- Makefile | 15 +++++++++++++++ 1 file changed, 15 insertions(+)