Yonghong Song bc4f0548f6 bpf: Compute bpf_skc_to_*() helper socket btf ids at build time ...

Currently, socket types (struct tcp_sock, udp_sock, etc.)
used by bpf_skc_to_*() helpers are computed when vmlinux_btf
is first built in the kernel.

Commit 5a2798ab32
("bpf: Add BTF_ID_LIST/BTF_ID/BTF_ID_UNUSED macros")
implemented a mechanism to compute btf_ids at kernel build
time which can simplify kernel implementation and reduce
runtime overhead by removing in-kernel btf_id calculation.
This patch did exactly this, removing in-kernel btf_id
computation and utilizing build-time btf_id computation.

If CONFIG_DEBUG_INFO_BTF is not defined, BTF_ID_LIST will
define an array with size of 5, which is not enough for
btf_sock_ids. So define its own static array if
CONFIG_DEBUG_INFO_BTF is not defined.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200720163358.1393023-1-yhs@fb.com

2020-07-21 13:26:26 -07:00

..

arraymap.c

bpf: Remove redundant synchronize_rcu.

2020-07-01 08:07:13 -07:00

bpf_iter.c

bpf: Enable bpf_iter targets registering ctx argument types

2020-05-13 12:30:50 -07:00

bpf_lru_list.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

bpf_lru_list.h

bpf: Fix a typo "inacitve" -> "inactive"

2020-04-06 21:54:10 +02:00

bpf_lsm.c

bpf: Use tracing helpers for lsm programs

2020-06-01 15:08:04 -07:00

bpf_struct_ops_types.h

bpf: tcp: Support tcp_congestion_ops in bpf

2020-01-09 08:46:18 -08:00

bpf_struct_ops.c

bpf: Set map_btf_{name, id} for all map types

2020-06-22 22:22:58 +02:00

btf.c

bpf: Compute bpf_skc_to_*() helper socket btf ids at build time

2020-07-21 13:26:26 -07:00

cgroup.c

bpf: Don't return EINVAL from {get,set}sockopt when optlen > PAGE_SIZE

2020-06-17 10:54:05 -07:00

core.c

bpf, netns: Handle multiple link attachments

2020-07-17 20:18:16 -07:00

cpumap.c

bpf: cpumap: Fix possible rcpu kthread hung

2020-07-21 09:15:28 -07:00

devmap.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

2020-07-04 17:48:34 -07:00

disasm.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

disasm.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

dispatcher.c

bpf: Remove bpf_image tree

2020-03-13 12:49:52 -07:00

hashtab.c

bpf: Remove redundant synchronize_rcu.

2020-07-01 08:07:13 -07:00

helpers.c

bpf: Implement BPF ring buffer and verifier support for it

2020-06-01 14:38:22 -07:00

inode.c

bpf: Create file bpf iterator

2020-05-09 17:05:26 -07:00

local_storage.c

bpf: Set map_btf_{name, id} for all map types

2020-06-22 22:22:58 +02:00

lpm_trie.c

bpf: Remove redundant synchronize_rcu.

2020-07-01 08:07:13 -07:00

Makefile

flow_dissector: Move out netns_bpf prog callbacks

2020-06-01 15:21:02 -07:00

map_in_map.c

bpf: Implement CAP_BPF

2020-05-15 17:29:41 +02:00

map_in_map.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

map_iter.c

bpf: Enable bpf_iter targets registering ctx argument types

2020-05-13 12:30:50 -07:00

net_namespace.c

bpf, netns: Fix build without CONFIG_INET

2020-07-21 09:12:34 -07:00

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: Dont iterate over possible CPUs with interrupts disabled

2020-02-24 16:18:20 -08:00

percpu_freelist.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

queue_stack_maps.c

bpf: Remove redundant synchronize_rcu.

2020-07-01 08:07:13 -07:00

reuseport_array.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-07-11 00:46:00 -07:00

ringbuf.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-07-11 00:46:00 -07:00

stackmap.c

bpf: Resolve BTF IDs in vmlinux image

2020-07-13 10:42:02 -07:00

syscall.c

bpf: Introduce SK_LOOKUP program type with a dedicated attach point

2020-07-17 20:18:16 -07:00

sysfs_btf.c

bpf: Support llvm-objcopy for vmlinux BTF

2020-03-19 12:32:38 +01:00

task_iter.c

bpf: Fix bpf_iter's task iterator logic

2020-05-14 18:37:32 -07:00

tnum.c

bpf: Verifier, do explicit ALU32 bounds tracking

2020-03-30 14:59:53 -07:00

trampoline.c

bpf: lsm: Implement attach, detach and execution

2020-03-30 01:34:00 +02:00

verifier.c

bpf: Introduce SK_LOOKUP program type with a dedicated attach point

2020-07-17 20:18:16 -07:00