Andrii Nakryiko 3c59623d82 libbpf: Add support for fetching up to 8 arguments in kprobes ... Add BPF_KPROBE() and PT_REGS_PARMx() support for up to 8 arguments, if target architecture supports this. Currently all architectures are limited to only 5 register-placed arguments, which is limiting even on x86-64. This patch adds generic macro machinery to support up to 8 arguments both when explicitly fetching it from pt_regs through PT_REGS_PARMx() macros, as well as more ergonomic access in BPF_KPROBE(). Also, for i386 architecture we now don't have to define fake PARM4 and PARM5 definitions, they will be generically substituted, just like for PARM6 through PARM8. Subsequent patches will fill out architecture-specific definitions, where appropriate. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Alan Maguire <alan.maguire@oracle.com> # arm64 Tested-by: Ilya Leoshkevich <iii@linux.ibm.com> # s390x Link: https://lore.kernel.org/bpf/20230120200914.3008030-2-andrii@kernel.org		2023-01-23 20:52:59 +01:00
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.gitignore	libbpf: Make libbpf_version.h non-auto-generated	2021-09-13 15:36:47 -07:00
bpf_core_read.h	libbpf: add bpf_core_type_matches() helper macro	2022-07-05 21:15:19 -07:00
bpf_endian.h	libbpf: Make bpf_endian co-exist with vmlinux.h	2020-07-01 09:06:12 +02:00
bpf_gen_internal.h	Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2021-12-10 15:56:13 -08:00
bpf_helpers.h	libbpf: Clean up legacy bpf maps declaration in bpf_helpers	2022-09-16 22:56:09 +02:00
bpf_prog_linfo.c	libbpf: Streamline error reporting for high-level APIs	2021-05-25 17:32:35 -07:00
bpf_tracing.h	libbpf: Add support for fetching up to 8 arguments in kprobes	2023-01-23 20:52:59 +01:00
bpf.c	libbpf: Introduce bpf_link_get_fd_by_id_opts()	2022-10-10 16:49:20 -07:00
bpf.h	libbpf: Avoid enum forward-declarations in public API in C++ mode	2022-11-30 22:56:47 +01:00
btf_dump.c	libbpf: Fix btf_dump's packed struct determination	2022-12-15 22:50:17 +01:00
btf.c	libbpf: Return -ENODATA for missing btf section	2023-01-03 14:27:42 -08:00
btf.h	libbpf: Don't require full struct enum64 in UAPI headers	2022-09-27 20:45:17 +02:00
Build	libbpf: move xsk.{c,h} into selftests/bpf	2022-06-28 13:13:32 -07:00
gen_loader.c	libbpf: fix an snprintf() overflow check	2022-07-19 10:47:31 -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: Poison strlcpy()	2023-01-06 16:57:23 +01:00
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	2022-11-29 13:04:52 -08:00
libbpf_version.h	libbpf: start v1.2 development cycle	2022-12-21 11:18:50 -08:00
libbpf.c	libbpf: Replace '.' with '_' in legacy kprobe event name	2023-01-13 14:05:47 -08:00
libbpf.h	libbpf: Added the description of some API functions	2022-12-29 14:32:20 -08:00
libbpf.map	libbpf: start v1.2 development cycle	2022-12-21 11:18:50 -08:00
libbpf.pc.template	libbpf: Add zlib as a dependency in pkg-config template	2019-12-16 14:55:29 -08:00
linker.c	libbpf: Add enum64 support for bpf linking	2022-06-07 10:20:43 -07:00
Makefile	Merge remote-tracking branch 'torvalds/master' into perf/core	2022-12-16 09:53:53 -03:00
netlink.c	libbpf: Streamline bpf_attr and perf_event_attr initialization	2022-08-17 22:42:10 +02:00
nlattr.c	libbpf: Fix overrun in netlink attribute iteration	2022-09-30 15:16:22 -07:00
nlattr.h	libbpf: Switch to void * casting in netlink helpers	2021-06-22 17:04:02 +02:00
relo_core.c	bpf: Correctly propagate errors up from bpf_core_composites_match	2022-07-08 15:31:43 -07:00
relo_core.h	bpf, libbpf: Add type match support	2022-07-05 21:14:25 -07:00
ringbuf.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-11-29 13:04:52 -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: Ensure functions with always_inline attribute are inline	2022-08-04 14:43:41 -07:00
usdt.c	libbpf: Parse usdt args without offset on x86 (e.g. 8@(%rsp))	2022-12-06 16:16:50 -08:00