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| author | Helge Deller <deller@gmx.de> | 2023-08-18 01:02:40 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2023-08-18 18:08:42 +0300 |
| commit | b6594a17ecce03ca70a3f36783924635eea5499d (patch) | |
| tree | a595e59badfee06ee739fa88226030f0d20ece8e /lib/test_bpf.c | |
| parent | 6c77997bc63982ab718662fee0bff6756d3116bc (diff) | |
| download | linux-b6594a17ecce03ca70a3f36783924635eea5499d.tar.xz | |
bpf/tests: Enhance output on error and fix typos
If a testcase returns a wrong (unexpected) value, print the expected and
returned value in hex notation in addition to the decimal notation.
This is very useful in tests which bit-shift hex values left or right and
helped me a lot while developing the JIT compiler for the hppa architecture.
Additionally fix two typos: dowrd -> dword, tall calls -> tail calls.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/ZN6ZAAVoWZpsD1Jf@p100
Diffstat (limited to 'lib/test_bpf.c')
| -rw-r--r-- | lib/test_bpf.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/lib/test_bpf.c b/lib/test_bpf.c index 913a7a079239..ecde4216201e 100644 --- a/lib/test_bpf.c +++ b/lib/test_bpf.c @@ -596,8 +596,8 @@ static int __bpf_fill_alu_shift(struct bpf_test *self, u8 op, { static const s64 regs[] = { 0x0123456789abcdefLL, /* dword > 0, word < 0 */ - 0xfedcba9876543210LL, /* dowrd < 0, word > 0 */ - 0xfedcba0198765432LL, /* dowrd < 0, word < 0 */ + 0xfedcba9876543210LL, /* dword < 0, word > 0 */ + 0xfedcba0198765432LL, /* dword < 0, word < 0 */ 0x0123458967abcdefLL, /* dword > 0, word > 0 */ }; int bits = alu32 ? 32 : 64; @@ -14567,8 +14567,10 @@ static int run_one(const struct bpf_prog *fp, struct bpf_test *test) if (ret == test->test[i].result) { pr_cont("%lld ", duration); } else { - pr_cont("ret %d != %d ", ret, - test->test[i].result); + s32 res = test->test[i].result; + + pr_cont("ret %d != %d (%#x != %#x)", + ret, res, ret, res); err_cnt++; } } @@ -15045,7 +15047,7 @@ static __init int prepare_tail_call_tests(struct bpf_array **pprogs) struct bpf_array *progs; int which, err; - /* Allocate the table of programs to be used for tall calls */ + /* Allocate the table of programs to be used for tail calls */ progs = kzalloc(struct_size(progs, ptrs, ntests + 1), GFP_KERNEL); if (!progs) goto out_nomem; |