CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is set unconditionally for the
most archs such as x86_64, aarch64, ppc64el and s390x, but this config
may be not set by users for riscv64 and loongarch64.
There exists failure about misaligned access when executing the testcase
"./test_verifier 190" when CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is not
set on LoongArch due to CONFIG_ARCH_STRICT_ALIGN is set by default.
It means that the program has unaligned accesses, but the kernel enables
the compiler option -mstrict-align to prevent unaligned accesses, so add
a flag F_NEEDS_EFFICIENT_UNALIGNED_ACCESS into the testcase to avoid the
failure.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>
Acked-by: Paul Chaignon <paul.chaignon@gmail.com>
---
v2: Update the commit message and collect R-b and A-b,
thanks Emil and Paul.
tools/testing/selftests/bpf/verifier/calls.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/testing/selftests/bpf/verifier/calls.c b/tools/testing/selftests/bpf/verifier/calls.c
index 86887130a0ef..29e57f0e56c3 100644
--- a/tools/testing/selftests/bpf/verifier/calls.c
+++ b/tools/testing/selftests/bpf/verifier/calls.c
@@ -1521,6 +1521,7 @@
.errstr = "R0 invalid mem access 'scalar'",
.result_unpriv = REJECT,
.errstr_unpriv = "invalid read from stack R7 off=-16 size=8",
+ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
"calls: two calls that receive map_value via arg=ptr_stack_of_caller. test1",
--
2.42.0