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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2024-01-02 20:30:37 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-01-04 14:37:25 -0800 |
| commit | 63fac34669e4cc666f943173ed2aa76b8db999f0 (patch) | |
| tree | 7269325aad0d4d47fab766b3f8dcfc07cfa8f0a5 /tools | |
| parent | 445aea5afda4759c13dc5c492b309cc1d5c1c486 (diff) | |
| download | linux-stable-63fac34669e4cc666f943173ed2aa76b8db999f0.tar.gz linux-stable-63fac34669e4cc666f943173ed2aa76b8db999f0.tar.bz2 linux-stable-63fac34669e4cc666f943173ed2aa76b8db999f0.zip | |
selftests/bpf: Test gotol with large offsets
Test gotol with offsets that don't fit into a short (i.e., larger than
32k or smaller than -32k).
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20240102193531.3169422-4-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/verifier_gotol.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_gotol.c b/tools/testing/selftests/bpf/progs/verifier_gotol.c index d1edbcff9a18..05a329ee45ee 100644 --- a/tools/testing/selftests/bpf/progs/verifier_gotol.c +++ b/tools/testing/selftests/bpf/progs/verifier_gotol.c @@ -33,6 +33,25 @@ l3_%=: \ : __clobber_all); } +SEC("socket") +__description("gotol, large_imm") +__success __failure_unpriv __retval(40000) +__naked void gotol_large_imm(void) +{ + asm volatile (" \ + gotol 1f; \ +0: \ + r0 = 0; \ + .rept 40000; \ + r0 += 1; \ + .endr; \ + exit; \ +1: gotol 0b; \ +" : + : + : __clobber_all); +} + #else SEC("socket") |