Delyan Kratunov 08d4dba6ae bpftool: Bpf skeletons assert type sizes ...

When emitting type declarations in skeletons, bpftool will now also emit
static assertions on the size of the data/bss/rodata/etc fields. This
ensures that in situations where userspace and kernel types have the same
name but differ in size we do not silently produce incorrect results but
instead break the build.

This was reported in [1] and as expected the repro in [2] fails to build
on the new size assert after this change.

  [1]: Closes: https://github.com/libbpf/libbpf/issues/433
  [2]: https://github.com/fuweid/iovisor-bcc-pr-3777

Signed-off-by: Delyan Kratunov <delyank@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Hengqi Chen <hengqi.chen@gmail.com>
Acked-by: Hengqi Chen <hengqi.chen@gmail.com>
Link: https://lore.kernel.org/bpf/f562455d7b3cf338e59a7976f4690ec5a0057f7f.camel@fb.com

2022-02-23 17:33:16 -08:00

..

bash-completion

bpftool: Add gen min_core_btf command

2022-02-16 10:05:45 -08:00

Documentation

bpftool: Gen min_core_btf explanation and examples

2022-02-16 10:13:21 -08:00

skeleton

tools/bpf/bpftool/skeleton: replace bpf_probe_read_kernel with bpf_probe_read_kernel_str to get task comm

2022-01-20 08:52:53 +02:00

.gitignore

bpftool: Fix SPDX tag for Makefiles and .gitignore

2021-11-10 09:00:52 -08:00

btf_dumper.c

bpftool: Use bpf_obj_get_info_by_fd directly

2021-11-03 11:25:32 -07:00

btf.c

bpftool: Fix error check when calling hashmap__new()

2022-01-12 17:01:36 -08:00

cfg.c

tools, bpftool: Poison and replace kernel integer typedefs

2020-05-11 21:20:46 +02:00

cfg.h

tools: bpftool: replace Netronome boilerplate with SPDX license headers

2018-12-13 12:08:44 +01:00

cgroup.c

bpftool: Adding support for BTF program names

2022-01-19 10:04:41 -08:00

common.c

bpftool: Fix uninit variable compilation warning

2022-02-03 16:32:25 +01:00

feature.c

bpftool: Stop supporting BPF offload-enabled feature probing

2022-02-03 16:32:25 +01:00

gen.c

bpftool: Bpf skeletons assert type sizes

2022-02-23 17:33:16 -08:00

iter.c

bpftool: Use libbpf_get_error() to check error

2021-11-14 18:38:13 -08:00

jit_disasm.c

bpftool: Properly close va_list 'ap' by va_end() on error

2021-07-06 09:19:23 +02:00

json_writer.c

bpftool: Support dumping metadata

2020-09-15 18:28:27 -07:00

json_writer.h

bpftool: Support dumping metadata

2020-09-15 18:28:27 -07:00

link.c

bpftool: Fix error check when calling hashmap__new()

2022-01-12 17:01:36 -08:00

main.c

bpftool: Update versioning scheme, align on libbpf's version number

2022-02-10 21:09:47 -08:00

main.h

bpftool: Remove usage of reallocarray()

2022-02-23 13:55:01 -08:00

Makefile

bpftool: Remove usage of reallocarray()

2022-02-23 13:55:01 -08:00

map_perf_ring.c

bpftool: Update btf_dump__new() and perf_buffer__new_raw() calls

2021-11-11 16:54:06 -08:00

map.c

bpftool: Fix pretty print dump for maps without BTF loaded

2022-02-16 15:08:55 -08:00

net.c

bpftool: use new API for attaching XDP program

2022-01-20 21:22:02 -08:00

netlink_dumper.c

bpftool: Use consistent include paths for libbpf

2020-01-20 16:37:45 -08:00

netlink_dumper.h

tools: bpftool: dual license all files

2018-12-13 12:08:44 +01:00

perf.c

tools: bpftool: Update and synchronise option list in doc and help msg

2021-07-30 15:40:27 -07:00

pids.c

bpftool: Fix error check when calling hashmap__new()

2022-01-12 17:01:36 -08:00

prog.c

bpftool: Remove usage of reallocarray()

2022-02-23 13:55:01 -08:00

struct_ops.c

bpftool: Stop using bpf_map__def() API

2022-01-12 17:01:38 -08:00

tracelog.c

tools: bpftool: add an option to prevent auto-mount of bpffs, tracefs

2018-12-18 14:47:17 +01:00

xlated_dumper.c

bpftool: Remove usage of reallocarray()

2022-02-23 13:55:01 -08:00

xlated_dumper.h

tools: bpftool: replace Netronome boilerplate with SPDX license headers

2018-12-13 12:08:44 +01:00