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7e2925f672
mirror_ubuntu-kernels/tools/lib/bpf
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Kumar Kartikeya Dwivedi 7e2925f672 libbpf: Add support for custom exception callbacks 
Add support to libbpf to append exception callbacks when loading a
program. The exception callback is found by discovering the declaration
tag 'exception_callback:<value>' and finding the callback in the value
of the tag.

The process is done in two steps. First, for each main program, the
bpf_object__sanitize_and_load_btf function finds and marks its
corresponding exception callback as defined by the declaration tag on
it. Second, bpf_object__reloc_code is modified to append the indicated
exception callback at the end of the instruction iteration (since
exception callback will never be appended in that loop, as it is not
directly referenced).

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20230912233214.1518551-16-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-16 09:36:43 -07:00
..
.gitignore libbpf: Make libbpf_version.h non-auto-generated 2021-09-13 15:36:47 -07:00
bpf_core_read.h libbpf: Fix BPF_PROBE_READ{_STR}_INTO() on s390x 2023-01-28 12:45:14 -08:00
bpf_endian.h libbpf: Make bpf_endian co-exist with vmlinux.h 2020-07-01 09:06:12 +02:00
bpf_gen_internal.h libbpf: Support kfunc detection in light skeleton. 2023-03-22 09:31:05 -07:00
bpf_helpers.h libbpf: Add __percpu_kptr macro definition 2023-09-08 08:42:18 -07:00
bpf_prog_linfo.c libbpf: Streamline error reporting for high-level APIs 2021-05-25 17:32:35 -07:00
bpf_tracing.h libbpf: Use local includes inside the library 2023-08-04 15:06:46 -07:00
bpf.c libbpf: Add bpf_link_create support for multi uprobes 2023-08-21 15:51:26 -07:00
bpf.h libbpf: Add bpf_link_create support for multi uprobes 2023-08-21 15:51:26 -07:00
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: Add basic BTF sanity validation 2023-09-08 08:42:17 -07:00
btf.h libbpf: Don't require full struct enum64 in UAPI headers 2022-09-27 20:45:17 +02:00
Build libbpf: Move elf_find_func_offset* functions to elf object 2023-08-21 15:51:25 -07:00
elf.c libbpf: Add elf_resolve_pattern_offsets function 2023-08-21 15:51:26 -07:00
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: Add helper macro to clear opts structs 2023-07-19 10:07:28 -07:00
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: Add uprobe multi link detection 2023-08-21 15:51:26 -07:00
libbpf_legacy.h libbpf: Clean up deprecated and legacy aliases 2022-08-17 22:42:56 +02:00
libbpf_probes.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-06-08 11:35:14 -07:00
libbpf_version.h libbpf: Start v1.3 development cycle 2023-05-23 21:39:12 +02:00
libbpf.c libbpf: Add support for custom exception callbacks 2023-09-16 09:36:43 -07:00
libbpf.h libbpf: Add bpf_object__unpin() 2023-08-23 17:10:09 -07:00
libbpf.map libbpf: Add bpf_object__unpin() 2023-08-23 17:10:09 -07:00
libbpf.pc.template libbpf: Add zlib as a dependency in pkg-config template 2019-12-16 14:55:29 -08:00
linker.c libbpf: Fix double-free when linker processes empty sections 2023-03-27 20:02:15 -07:00
Makefile libbpf: fix typos in Makefile 2023-08-02 13:58:51 -07:00
netlink.c xsk: add new netlink attribute dedicated for ZC max frags 2023-07-19 09:56:49 -07:00
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: Use bpf_{btf,link,map,prog}_get_info_by_fd() 2023-02-16 15:32:45 -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 libbpf: Poison kernel-only integer types 2020-01-10 10:38:00 -08:00
str_error.h libbpf: relicense libbpf as LGPL-2.1 OR BSD-2-Clause 2018-10-08 10:09:48 +02:00
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