Jiri Olsa 10cb8622b6 libbpf: Store zero fd to fd_array for loader kfunc relocation ... When moving some of the test kfuncs to bpf_testmod I hit an issue when some of the kfuncs that object uses are in module and some in vmlinux. The problem is that both vmlinux and module kfuncs get allocated btf_fd_idx index into fd_array, but we store to it the BTF fd value only for module's kfunc, not vmlinux's one because (it's zero). Then after the program is loaded we check if fd_array[btf_fd_idx] != 0 and close the fd. When the object has kfuncs from both vmlinux and module, the fd from fd_array[btf_fd_idx] from previous load will be stored in there for vmlinux's kfunc, so we close unrelated fd (of the program we just loaded in my case). Fixing this by storing zero to fd_array[btf_fd_idx] for vmlinux kfuncs, so the we won't close stale fd. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20230515133756.1658301-2-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2023-05-16 22:09:23 -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: fix offsetof() and container_of() to work with CO-RE	2023-05-12 12:05:21 -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: Fix comment about arc and riscv arch in bpf_tracing.h	2023-05-04 17:11:04 -07:00
bpf.c	libbpf: Wire through log_true_size for bpf_btf_load() API	2023-04-11 18:05:44 +02:00
bpf.h	libbpf: Wire through log_true_size for bpf_btf_load() API	2023-04-11 18:05:44 +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
btf.c	libbpf: Remove several dead assignments	2023-03-01 11:13:11 -08:00
btf.h	libbpf: Don't require full struct enum64 in UAPI headers	2022-09-27 20:45:17 +02:00
Build	libbpf: Implement basic zip archive parsing support	2023-03-01 16:05:34 -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: Hashmap.h update to fix build issues using LLVM14	2022-11-11 10:24:23 -08:00
libbpf_common.h	libbpf: cleanup LIBBPF_DEPRECATED_SINCE supporting macros for v0.x	2022-06-28 13:13:33 -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: Revert poisoning of strlcpy	2023-03-10 10:19:25 -08:00
libbpf_legacy.h	libbpf: Clean up deprecated and legacy aliases	2022-08-17 22:42:56 +02:00
libbpf_probes.c	tools: bpftool: print netfilter link info	2023-04-21 11:34:49 -07:00
libbpf_version.h	libbpf: start v1.2 development cycle	2022-12-21 11:18:50 -08:00
libbpf.c	Mainly singleton patches all over the place. Series of note are:	2023-04-27 19:57:00 -07:00
libbpf.h	libbpf: Ensure print callback usage is thread-safe	2023-03-27 11:33:43 -07:00
libbpf.map	libbpf: Update a bpf_link with another struct_ops.	2023-03-22 22:53:02 -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	Merge remote-tracking branch 'torvalds/master' into perf/core	2022-12-16 09:53:53 -03:00
netlink.c	libbpf: Fix bpf_xdp_query() in old kernels	2023-02-27 15:26:12 -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: Remove several dead assignments	2023-03-01 11:13:11 -08:00
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
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: Fix unbounded memory access in bpf_usdt_arg()	2023-01-28 12:45:14 -08:00
usdt.c	Mainly singleton patches all over the place. Series of note are:	2023-04-27 19:57:00 -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