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6ebaa3fb88
linux/tools/lib/bpf
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Eduard Zingerman 6ebaa3fb88 libbpf: Rewrite btf datasec names starting from '?' 
Optional struct_ops maps are defined using question mark at the start
of the section name, e.g.:

    SEC("?.struct_ops")
    struct test_ops optional_map = { ... };

This commit teaches libbpf to detect if kernel allows '?' prefix
in datasec names, and if it doesn't then to rewrite such names
by replacing '?' with '_', e.g.:

    DATASEC ?.struct_ops -> DATASEC _.struct_ops

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240306104529.6453-13-eddyz87@gmail.com
2024-03-06 15:18:16 -08:00
..
.gitignore libbpf: Make libbpf_version.h non-auto-generated 2021-09-13 15:36:47 -07:00
bpf_core_read.h libbpf: Add support to GCC in CORE macro definitions 2024-02-13 11:28:12 -08:00
bpf_endian.h
bpf_gen_internal.h libbpf: Support kfunc detection in light skeleton. 2023-03-22 09:31:05 -07:00
bpf_helpers.h libbpf: add __arg_trusted and __arg_nullable tag macros 2024-01-30 09:41:50 -08:00
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 syscall access arguments on riscv 2023-10-04 13:19:13 -07:00
bpf.c libbpf: Wire up token_fd into feature probing logic 2024-01-24 16:21:02 -08:00
bpf.h bpf: Clarify batch lookup/lookup_and_delete semantics 2024-02-22 10:24:38 -08:00
btf_dump.c libbpf: btf_dump_type_data_check_overflow needs to consider BTF_MEMBER_BITFIELD_SIZE 2023-05-01 15:37:38 +02:00
btf.c libbpf: Correct debug message in btf__load_vmlinux_btf 2024-03-04 14:33:51 +01:00
btf.h libbpf: Don't require full struct enum64 in UAPI headers 2022-09-27 20:45:17 +02:00
Build libbpf: Move feature detection code into its own file 2024-01-24 16:21:02 -08:00
elf.c libbpf: Move feature detection code into its own file 2024-01-24 16:21:02 -08:00
features.c libbpf: Rewrite btf datasec names starting from '?' 2024-03-06 15:18:16 -08:00
gen_loader.c libbpf: Store zero fd to fd_array for loader kfunc relocation 2023-05-16 22:09:23 -07:00
hashmap.c libbpf: Hashmap interface update to allow both long and void* keys/values 2022-11-09 20:45:14 -08:00
hashmap.h libbpf: Remove HASHMAP_INIT static initialization helper 2023-07-11 09:40:05 -07:00
libbpf_common.h libbpf: Fix potential uninitialized tail padding with LIBBPF_OPTS_RESET 2023-11-09 19:07:51 -08:00
libbpf_errno.c libbpf: Optimized return value in libbpf_strerror when errno is libbpf errno 2022-12-14 18:39:33 +01:00
libbpf_internal.h libbpf: Rewrite btf datasec names starting from '?' 2024-03-06 15:18:16 -08:00
libbpf_legacy.h libbpf: Clean up deprecated and legacy aliases 2022-08-17 22:42:56 +02:00
libbpf_probes.c libbpf: Wire up token_fd into feature probing logic 2024-01-24 16:21:02 -08:00
libbpf_version.h libbpf: Start v1.4 development cycle 2023-11-23 22:49:41 +01:00
libbpf.c libbpf: Rewrite btf datasec names starting from '?' 2024-03-06 15:18:16 -08:00
libbpf.h libbpf: Support BPF token path setting through LIBBPF_BPF_TOKEN_PATH envvar 2024-01-24 16:21:03 -08:00
libbpf.map libbpf: Add missed btf_ext__raw_data() API 2024-02-01 22:16:12 +01:00
libbpf.pc.template
linker.c libbpf: Add missed btf_ext__raw_data() API 2024-02-01 22:16:12 +01:00
Makefile libbpf: fix typos in Makefile 2023-08-02 13:58:51 -07:00
netlink.c libbpf: Use OPTS_SET() macro in bpf_xdp_query() 2024-02-06 09:51:26 -08:00
nlattr.c libbpf: Fix alen calculation in libbpf_nla_dump_errormsg() 2023-02-10 15:27:22 -08:00
nlattr.h libbpf: add API to get XDP/XSK supported features 2023-02-02 20:48:24 -08:00
relo_core.c libbpf: fix signedness determination in CO-RE relo handling logic 2023-08-23 21:13:48 -07:00
relo_core.h bpf, libbpf: Add type match support 2022-07-05 21:14:25 -07:00
ringbuf.c libbpf: Add ring__consume 2023-09-25 16:22:43 -07:00
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 libbpf: Move feature detection code into its own file 2024-01-24 16:21:02 -08:00
strset.c libbpf: Hashmap interface update to allow both long and void* keys/values 2022-11-09 20:45:14 -08:00
strset.h libbpf: Extract internal set-of-strings datastructure APIs 2021-03-18 16:14:22 -07:00
usdt.bpf.h libbpf: Use local includes inside the library 2023-08-04 15:06:46 -07:00
usdt.c libbpf: Add uprobe multi link support to bpf_program__attach_usdt 2023-08-21 15:51:26 -07:00
zip.c libbpf: Ignore warnings about "inefficient alignment" 2023-03-16 18:20:08 +01:00
zip.h libbpf: Implement basic zip archive parsing support 2023-03-01 16:05:34 -08:00