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ca74823c6e
linux/kernel/bpf
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Jiri Olsa ca74823c6e bpf: Add cookie support to programs attached with kprobe multi link 
Adding support to call bpf_get_attach_cookie helper from
kprobe programs attached with kprobe multi link.

The cookie is provided by array of u64 values, where each
value is paired with provided function address or symbol
with the same array index.

When cookie array is provided it's sorted together with
addresses (check bpf_kprobe_multi_cookie_swap). This way
we can find cookie based on the address in
bpf_get_attach_cookie helper.

Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-7-jolsa@kernel.org
2022-03-17 20:17:19 -07:00
..
preload bpf: Remove redundant slash 2022-03-07 22:19:32 -08:00
arraymap.c bpf: generalise tail call map compatibility check 2022-01-21 14:14:03 -08:00
bloom_filter.c bpf: Add missing map_get_next_key method to bloom filter map. 2021-12-29 09:38:31 -08:00
bpf_inode_storage.c bpf: Allow bpf_local_storage to be used by sleepable programs 2021-12-29 17:54:40 -08:00
bpf_iter.c bpf: Add support for bpf iterator programs to use sleepable helpers 2022-01-24 19:55:40 -08:00
bpf_local_storage.c bpf: Cleanup comments 2022-02-23 15:17:51 -08:00
bpf_lru_list.c bpf_lru_list: Read double-checked variable once without lock 2021-02-10 15:54:26 -08:00
bpf_lru_list.h bpf: Fix a typo "inacitve" -> "inactive" 2020-04-06 21:54:10 +02:00
bpf_lsm.c bpf-lsm: Make bpf_lsm_kernel_read_file() as sleepable 2022-03-10 18:57:55 -08:00
bpf_struct_ops_types.h bpf: Add dummy BPF STRUCT_OPS for test purpose 2021-11-01 14:10:00 -07:00
bpf_struct_ops.c bpf: Rename btf_member accessors. 2021-12-02 11:18:34 -08:00
bpf_task_storage.c bpf: Allow bpf_local_storage to be used by sleepable programs 2021-12-29 17:54:40 -08:00
btf.c bpf: Reject programs that try to load __percpu memory. 2022-03-05 18:38:15 -08:00
cgroup.c bpf: Cleanup comments 2022-02-23 15:17:51 -08:00
core.c bpf: Fix net.core.bpf_jit_harden race 2022-03-16 15:13:36 -07:00
cpumap.c bpf: generalise tail call map compatibility check 2022-01-21 14:14:03 -08:00
devmap.c bpf: generalise tail call map compatibility check 2022-01-21 14:14:03 -08:00
disasm.c bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause 2021-09-02 14:49:23 +02:00
disasm.h bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause 2021-09-02 14:49:23 +02:00
dispatcher.c bpf: Remove bpf_image tree 2020-03-13 12:49:52 -07:00
hashtab.c bpf: Cleanup comments 2022-02-23 15:17:51 -08:00
helpers.c bpf: Replace strncpy() with strscpy() 2022-03-07 22:04:33 -08:00
inode.c bpf: Convert bpf_preload.ko to use light skeleton. 2022-02-10 23:31:51 +01:00
Kconfig bpf: Add "live packet" mode for XDP in BPF_PROG_RUN 2022-03-09 14:19:22 -08:00
local_storage.c bpf: Cleanup comments 2022-02-23 15:17:51 -08:00
lpm_trie.c bpf: Fix typo in a comment in bpf lpm_trie. 2021-12-30 18:42:34 -08:00
Makefile bpf: Prepare relo_core.c for kernel duty. 2021-12-02 11:18:34 -08:00
map_in_map.c bpf: Remember BTF of inner maps. 2021-07-15 22:31:10 +02:00
map_in_map.h bpf: Add map_meta_equal map ops 2020-08-28 15:41:30 +02:00
map_iter.c bpf: Introduce MEM_RDONLY flag 2021-12-18 13:27:41 -08:00
mmap_unlock_work.h bpf: Introduce helper bpf_find_vma 2021-11-07 11:54:51 -08:00
net_namespace.c net: Add includes masked by netdevice.h including uapi/bpf.h 2021-12-29 20:03:05 -08:00
offload.c bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill 2020-02-17 16:53:49 +01:00
percpu_freelist.c bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI 2020-10-06 00:04:11 +02:00
percpu_freelist.h bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI 2020-10-06 00:04:11 +02:00
prog_iter.c bpf: Refactor bpf_iter_reg to have separate seq_info member 2020-07-25 20:16:32 -07:00
queue_stack_maps.c bpf: Eliminate rlimit-based memory accounting for queue_stack_maps maps 2020-12-02 18:32:46 -08:00
reuseport_array.c bpf: Cleanup comments 2022-02-23 15:17:51 -08:00
ringbuf.c bpf: Use VM_MAP instead of VM_ALLOC for ringbuf 2022-02-02 23:15:24 -08:00
stackmap.c bpf: Cache the last valid build_id 2022-02-28 18:10:28 +01:00
syscall.c bpf: Add cookie support to programs attached with kprobe multi link 2022-03-17 20:17:19 -07:00
sysfs_btf.c bpf: Load and verify kernel module BTFs 2020-11-10 15:25:53 -08:00
task_iter.c bpf: Introduce btf_tracing_ids 2021-11-12 10:19:09 -08:00
tnum.c bpf, tnums: Provably sound, faster, and more precise algorithm for tnum_mul 2021-06-01 13:34:15 +02:00
trampoline.c bpf: Cleanup comments 2022-02-23 15:17:51 -08:00
verifier.c bpf: Add support to inline bpf_get_func_ip helper on x86 2022-03-17 20:17:19 -07:00