6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jiri Olsa <jolsa@xxxxxxxxxx> commit 2531ba0e4ae67d6d0219400af27805fe52cd28e8 upstream. Thorsten reported build issue with command line that defined extra HOSTCFLAGS that were not passed into 'prepare' targets, but were used to build resolve_btfids objects. This results in build fail when these objects are linked together: /usr/bin/ld: /build.../tools/bpf/resolve_btfids//libbpf/libbpf.a(libbpf-in.o): relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a PIE \ object; recompile with -fPIE Fixing this by passing HOSTCFLAGS in EXTRA_CFLAGS as part of HOST_OVERRIDES variable for prepare targets. [1] https://lore.kernel.org/bpf/f7922132-6645-6316-5675-0ece4197bfff@xxxxxxxxxxxxx/ Fixes: 56a2df7615fa ("tools/resolve_btfids: Compile resolve_btfids as host program") Reported-by: Thorsten Leemhuis <linux@xxxxxxxxxxxxx> Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx> Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx> Tested-by: Thorsten Leemhuis <linux@xxxxxxxxxxxxx> Acked-by: Ian Rogers <irogers@xxxxxxxxxx> Link: https://lore.kernel.org/bpf/20230209143735.4112845-1-jolsa@xxxxxxxxxx Cc: Nathan Chancellor <nathan@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/bpf/resolve_btfids/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/tools/bpf/resolve_btfids/Makefile +++ b/tools/bpf/resolve_btfids/Makefile @@ -19,7 +19,7 @@ endif # Overrides for the prepare step libraries. HOST_OVERRIDES := AR="$(HOSTAR)" CC="$(HOSTCC)" LD="$(HOSTLD)" ARCH="$(HOSTARCH)" \ - CROSS_COMPILE="" + CROSS_COMPILE="" EXTRA_CFLAGS="$(HOSTCFLAGS)" RM ?= rm HOSTCC ?= gcc
