Alexander Lobakin 75d3960be7 bpftool: Use a local bpf_perf_event_value to fix accessing its fields ... [ Upstream commit 658ac06801 ] Fix the following error when building bpftool: CLANG profiler.bpf.o CLANG pid_iter.bpf.o skeleton/profiler.bpf.c:18:21: error: invalid application of 'sizeof' to an incomplete type 'struct bpf_perf_event_value' __uint(value_size, sizeof(struct bpf_perf_event_value)); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ tools/bpf/bpftool/bootstrap/libbpf/include/bpf/bpf_helpers.h:13:39: note: expanded from macro '__uint' tools/bpf/bpftool/bootstrap/libbpf/include/bpf/bpf_helper_defs.h:7:8: note: forward declaration of 'struct bpf_perf_event_value' struct bpf_perf_event_value; ^ struct bpf_perf_event_value is being used in the kernel only when CONFIG_BPF_EVENTS is enabled, so it misses a BTF entry then. Define struct bpf_perf_event_value___local with the `preserve_access_index` attribute inside the pid_iter BPF prog to allow compiling on any configs. It is a full mirror of a UAPI structure, so is compatible both with and w/o CO-RE. bpf_perf_event_read_value() requires a pointer of the original type, so a cast is needed. Fixes: 47c09d6a9f ("bpftool: Introduce "prog profile" command") Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexander Lobakin <alobakin@pm.me> Signed-off-by: Quentin Monnet <quentin@isovalent.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20230707095425.168126-5-quentin@isovalent.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-09-19 12:22:32 +02:00
..
bpftool	bpftool: Use a local bpf_perf_event_value to fix accessing its fields	2023-09-19 12:22:32 +02:00
resolve_btfids	tools/resolve_btf_ids: Close ELF file on error	2022-03-08 19:12:33 +01:00
runqslower	tools/runqslower: Use __state instead of state	2021-07-07 09:42:26 -07:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
Makefile	tools bpf_jit_disasm: Fix compilation error with new binutils	2023-03-17 08:49:04 +01:00
bpf_asm.c	docs: networking: convert filter.txt to ReST	2020-04-28 14:39:46 -07:00
bpf_dbg.c	bpf: Simplify the calculation of variables	2021-03-04 19:24:53 -08:00
bpf_exp.l	bpf: fix cbpf parser bug for octal numbers	2018-06-03 07:46:55 -07:00
bpf_exp.y	tools, bpf_asm: Exit non-zero on errors	2021-02-26 22:53:50 +01:00
bpf_jit_disasm.c	tools bpf_jit_disasm: Fix compilation error with new binutils	2023-03-17 08:49:04 +01:00