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 _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
