Nick Desaulniers c0bb9fb0e5 bpf: Fix BTF_ID symbol generation collision in tools/ ... Marcus and Satya reported an issue where BTF_ID macro generates same symbol in separate objects and that breaks final vmlinux link. ld.lld: error: ld-temp.o <inline asm>:14577:1: symbol '__BTF_ID__struct__cgroup__624' is already defined This can be triggered under specific configs when __COUNTER__ happens to be the same for the same symbol in two different translation units, which is already quite unlikely to happen. Add __LINE__ number suffix to make BTF_ID symbol more unique, which is not a complete fix, but it would help for now and meanwhile we can work on better solution as suggested by Andrii. Cc: stable@vger.kernel.org Reported-by: Satya Durga Srinivasu Prabhala <quic_satyap@quicinc.com> Reported-by: Marcus Seyfarth <m.seyfarth@gmail.com> Closes: https://github.com/ClangBuiltLinux/linux/issues/1913 Debugged-by: Nathan Chancellor <nathan@kernel.org> Co-developed-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/bpf/CAEf4Bzb5KQ2_LmhN769ifMeSJaWfebccUasQOfQKaOd0nQ51tw@mail.gmail.com/ Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/r/20230915-bpf_collision-v3-2-263fc519c21f@google.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2023-09-15 12:08:27 -07:00
..
asm	tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench'	2023-05-17 10:42:19 -03:00
asm-generic	tools: KVM: selftests: Convert clear/set_bit() to actual atomics	2022-12-02 13:22:35 -05:00
linux	bpf: Fix BTF_ID symbol generation collision in tools/	2023-09-15 12:08:27 -07:00
nolibc	tools/nolibc: keep brk(), sbrk(), mmap() away from __sysret()	2023-08-23 05:19:22 +02:00
tools	tools include: add dis-asm-compat.h to handle version differences	2022-08-01 15:29:49 -03:00
trace/events
uapi	bpf: Clarify error expectations from bpf_clone_redirect	2023-09-11 22:29:19 +02:00
vdso	tools headers: Synchronize {linux,vdso}/bits.h with the kernel sources	2023-03-03 22:34:15 -03:00