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linux-stable/tools/lib/bpf
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Kui-Feng Lee 69e4a9d2b3 libbpf: Convert st_ops->data to shadow type. 
Convert st_ops->data to the shadow type of the struct_ops map. The shadow
type of a struct_ops type is a variant of the original struct type
providing a way to access/change the values in the maps of the struct_ops
type.

bpf_map__initial_value() will return st_ops->data for struct_ops types. The
skeleton is going to use it as the pointer to the shadow type of the
original struct type.

One of the main differences between the original struct type and the shadow
type is that all function pointers of the shadow type are converted to
pointers of struct bpf_program. Users can replace these bpf_program
pointers with other BPF programs. The st_ops->progs[] will be updated
before updating the value of a map to reflect the changes made by users.

Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240229064523.2091270-3-thinker.li@gmail.com
 		2024-02-29 14:23:52 -08:00
..
.gitignore libbpf: Make libbpf_version.h non-auto-generated 2021-09-13 15:36:47 -07:00
Build libbpf: Move feature detection code into its own file 2024-01-24 16:21:02 -08:00
Makefile libbpf: fix typos in Makefile 2023-08-02 13:58:51 -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
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
btf.c libbpf: Add missed btf_ext__raw_data() API 2024-02-01 22:16:12 +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 2023-05-01 15:37:38 +02:00
elf.c libbpf: Move feature detection code into its own file 2024-01-24 16:21:02 -08:00
features.c libbpf: integrate __arg_ctx feature detector into kernel_supports() 2024-01-29 12:34:13 -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.c libbpf: Convert st_ops->data to shadow type. 2024-02-29 14:23:52 -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
…
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: integrate __arg_ctx feature detector into kernel_supports() 2024-01-29 12:34:13 -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
linker.c libbpf: Add missed btf_ext__raw_data() API 2024-02-01 22:16:12 +01:00
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
…
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