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android_kernel_msm-6.1_noth.../tools/lib/bpf
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Andrii Nakryiko 34fe7aa8ef libbpf: fix offsetof() and container_of() to work with CO-RE 
[ Upstream commit bdeeed3498c7871c17465bb4f11d1bc67f9098af ]

It seems like __builtin_offset() doesn't preserve CO-RE field
relocations properly. So if offsetof() macro is defined through
__builtin_offset(), CO-RE-enabled BPF code using container_of() will be
subtly and silently broken.

To avoid this problem, redefine offsetof() and container_of() in the
form that works with CO-RE relocations more reliably.

Fixes: 5fbc220862 ("tools/libpf: Add offsetof/container_of macro in bpf_helpers.h")
Reported-by: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20230509065502.2306180-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:21:04 +02:00
..
.gitignore libbpf: Make libbpf_version.h non-auto-generated 2021-09-13 15:36:47 -07:00
bpf.c libbpf: Clean up deprecated and legacy aliases 2022-08-17 22:42:56 +02:00
bpf.h libbpf: Avoid enum forward-declarations in public API in C++ mode 2022-12-31 13:33:03 +01:00
bpf_core_read.h libbpf: add bpf_core_type_matches() helper macro 2022-07-05 21:15:19 -07:00
bpf_endian.h
bpf_gen_internal.h Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-12-10 15:56:13 -08:00
bpf_helpers.h libbpf: fix offsetof() and container_of() to work with CO-RE 2023-07-19 16:21:04 +02:00
bpf_prog_linfo.c libbpf: Streamline error reporting for high-level APIs 2021-05-25 17:32:35 -07:00
bpf_tracing.h libbpf: Fix invalid return address register in s390 2023-03-10 09:32:51 +01:00
btf.c libbpf: Fix btf__align_of() by taking into account field offsets 2023-03-10 09:32:49 +01:00
btf.h libbpf: Don't require full struct enum64 in UAPI headers 2022-09-27 20:45:17 +02:00
btf_dump.c libbpf: btf_dump_type_data_check_overflow needs to consider BTF_MEMBER_BITFIELD_SIZE 2023-07-19 16:21:04 +02:00
Build libbpf: move xsk.{c,h} into selftests/bpf 2022-06-28 13:13:32 -07:00
gen_loader.c libbpf: Fix ld_imm64 copy logic for ksym in light skeleton. 2023-05-11 23:03:18 +09:00
hashmap.c libbpf: Use IS_ERR_OR_NULL() in hashmap__free() 2022-01-12 17:01:36 -08:00
hashmap.h
libbpf.c libbpf: Fix null-pointer dereference in find_prog_by_sec_insn() 2022-12-31 13:32:02 +01:00
libbpf.h libbpf: restore memory layout of bpf_object_open_opts 2022-09-23 16:19:37 -07:00
libbpf.map bpf: Add libbpf logic for user-space ring buffer 2022-09-21 16:25:03 -07:00
libbpf.pc.template
libbpf_common.h libbpf: cleanup LIBBPF_DEPRECATED_SINCE supporting macros for v0.x 2022-06-28 13:13:33 -07:00
libbpf_errno.c libbpf: Streamline error reporting for high-level APIs 2021-05-25 17:32:35 -07:00
libbpf_internal.h libbpf: Making bpf_prog_load() ignore name if kernel doesn't support 2022-08-15 14:58:20 -07:00
libbpf_legacy.h libbpf: Clean up deprecated and legacy aliases 2022-08-17 22:42:56 +02:00
libbpf_probes.c libbpf: Use page size as max_entries when probing ring buffer map 2022-11-17 15:46:05 -08:00
libbpf_version.h bpf: Add libbpf logic for user-space ring buffer 2022-09-21 16:25:03 -07:00
linker.c libbpf: Add enum64 support for bpf linking 2022-06-07 10:20:43 -07:00
Makefile libbpf: move xsk.{c,h} into selftests/bpf 2022-06-28 13:13:32 -07:00
netlink.c libbpf: Streamline bpf_attr and perf_event_attr initialization 2022-08-17 22:42:10 +02:00
nlattr.c libbpf: Fix alen calculation in libbpf_nla_dump_errormsg() 2023-03-10 09:33:02 +01:00
nlattr.h libbpf: Switch to void * casting in netlink helpers 2021-06-22 17:04:02 +02:00
relo_core.c bpf: Correctly propagate errors up from bpf_core_composites_match 2022-07-08 15:31:43 -07:00
relo_core.h bpf, libbpf: Add type match support 2022-07-05 21:14:25 -07:00
ringbuf.c libbpf: Check the validity of size in user_ring_buffer__reserve() 2022-11-17 15:49:59 -08:00
skel_internal.h libbpf: add map_get_fd_by_id and map_delete_elem in light skeleton 2022-08-25 18:52:29 -07:00
str_error.c
str_error.h
strset.c libbpf: Fix memory leak in strset 2021-10-01 22:54:38 +02:00
strset.h
usdt.bpf.h libbpf: Ensure functions with always_inline attribute are inline 2022-08-04 14:43:41 -07:00
usdt.c libbpf: Fix memory leak in parse_usdt_arg() 2022-12-31 13:32:02 +01:00