On 28/02/2022 16:16, Ansuel Smith wrote: >> On 27/02/2022 17:20, Ansuel Smith wrote: >>> > >>>> From: Tony Ambardar <itug...@yahoo.com> >>>> >>>> dwarves is a set of tools that use the debugging information inserted in >>>> ELF binaries by compilers such as GCC. Utilities in the dwarves suite >>>> include pahole, which can be used to find alignment holes in structs and >>>> classes, and also extracts other information such as CPU cacheline >>>> alignment, helping pack those structures to achieve more cache hits. >>>> >>>> These tools are also used to encode and read the BTF type information >>>> format used with the bpf syscall, making this a Linux build dependency >>>> when using kernel BTF information. >>> BTW this fails to build if libdw-dev is not installed with >>> >>> -- Checking availability of DWARF and ELF development libraries >>> -- Could NOT find dwarf include dir >>> -- Could NOT find libdw include dir >>> -- Could NOT find libdw library >>> CMake Error at cmake/modules/FindDWARF.cmake:93 (message): >>> Could NOT find some ELF and DWARF libraries, please install the missing >>> packages >>> Call Stack (most recent call first): >>> CMakeLists.txt:60 (find_package) >>> >>> ERROR: tools/dwarves failed to build. >>> >>> Should we add it to the build prereq? >> Please try this instead: >> >> diff --git a/tools/dwarves/Makefile b/tools/dwarves/Makefile >> index b02a2398a1..e5a55706be 100644 >> --- a/tools/dwarves/Makefile >> +++ b/tools/dwarves/Makefile >> @@ -12,14 +12,12 @@PKG_LICENSE:=GPL-2.0-only >> PKG_LICENSE_FILES:=COPYING >> >> HOST_BUILD_PARALLEL:=1 >> +PKG_BUILD_DEPENDS:=elfutils/host >> >> include $(INCLUDE_DIR)/host-build.mk >> include $(INCLUDE_DIR)/cmake.mk >> >> CMAKE_HOST_OPTIONS += \ >> - -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=BOTH \ >> - -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY=BOTH \ >> - -DCMAKE_BUILD_TYPE=Release \ >> -D__LIB=lib \ >> -DCMAKE_INSTALL_RPATH="$(STAGING_DIR_HOST)/lib" \ >> -DCMAKE_SKIP_RPATH=FALSE >> >> Thanks, >> Stijn >> > No luck... still > Apparently we cannot use PKG_BUILD_DEPENDS or HOST_BUILD_DEPENDS in tools/, as this is handled in include/package-dumpinfo.mk, which is included from include/package.mk, which we don't include in tools/... Could use some guidance here, as I am not familiar enough with this part of the code.
Thanks, Stijn _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
