mirror_ubuntu-kernels/tools/testing
Alexei Starovoitov 09b28d76ea bpf: Add abnormal return checks.
LD_[ABS|IND] instructions may return from the function early. bpf_tail_call
pseudo instruction is either fallthrough or return. Allow them in the
subprograms only when subprograms are BTF annotated and have scalar return
types. Allow ld_abs and tail_call in the main program even if it calls into
subprograms. In the past that was not ok to do for ld_abs, since it was JITed
with special exit sequence. Since bpf_gen_ld_abs() was introduced the ld_abs
looks like normal exit insn from JIT point of view, so it's safe to allow them
in the main program.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-09-17 19:56:07 -07:00
..
fault-injection docs: fault-injection: convert docs to ReST and rename to *.rst 2019-06-14 14:21:07 -06:00
ktest Updates for ktest 5.9 2020-08-10 19:16:26 -07:00
kunit linux-kselftest-kunit-5.9-rc1 2020-08-05 10:07:39 -07:00
nvdimm tools/testing/nvdimm: Emulate firmware activation commands 2020-07-25 19:34:48 -06:00
radix-tree SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
scatterlist treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
selftests bpf: Add abnormal return checks. 2020-09-17 19:56:07 -07:00
vsock SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00