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selftests/bpf: Fix attach_probe in parallel mode 

This patch makes attach_probe uses its own method as attach point,
avoiding conflict with other tests like bpf_cookie.

Signed-off-by: Yucong Sun <sunyucong@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211025223345.2136168-4-fallentree@fb.com
This commit is contained in:
Yucong Sun 2021-10-25 15:33:44 -07:00 committed by Andrii Nakryiko
parent 547208a386
commit 9e7240fb2d
1 changed files with 7 additions and 2 deletions
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9
tools/testing/selftests/bpf/prog_tests/attach_probe.c
View File

@ -5,6 +5,11 @@
/* this is how USDT semaphore is actually defined, except volatile modifier */
volatile unsigned short uprobe_ref_ctr __attribute__((unused)) __attribute((section(".probes")));
/* attach point */
static void method(void) {
return ;
}
void test_attach_probe(void)
{
DECLARE_LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts);
@ -33,7 +38,7 @@ void test_attach_probe(void)
if (CHECK(base_addr < 0, "get_base_addr",
"failed to find base addr: %zd", base_addr))
return;
uprobe_offset = get_uprobe_offset(&get_base_addr, base_addr);
uprobe_offset = get_uprobe_offset(&method, base_addr);
ref_ctr_offset = get_rel_offset((uintptr_t)&uprobe_ref_ctr);
if (!ASSERT_GE(ref_ctr_offset, 0, "ref_ctr_offset"))
@ -98,7 +103,7 @@ void test_attach_probe(void)
goto cleanup;
/* trigger & validate uprobe & uretprobe */
get_base_addr();
method();
if (CHECK(skel->bss->uprobe_res != 3, "check_uprobe_res",
"wrong uprobe res: %d\n", skel->bss->uprobe_res))