Commit 980a1a4c authored by Matt Smith's avatar Matt Smith Committed by Andrii Nakryiko
Browse files

selftests/bpf: Add checks for X__elf_bytes() skeleton helper 



This patch adds two checks for the X__elf_bytes BPF skeleton helper
method. The first asserts that the pointer returned from the helper
method is valid, the second asserts that the provided size pointer is
set.

Signed-off-by: default avatarMatt Smith <alastorze@fb.com>
Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210901194439.3853238-4-alastorze@fb.com
parent a6cc6b34

tools/testing/selftests/bpf/prog_tests/skeleton.c

+6 −0
Original line number Diff line number Diff line
@@ -18,6 +18,8 @@ void test_skeleton(void) 
	struct test_skeleton__data *data;

	struct test_skeleton__rodata *rodata;

	struct test_skeleton__kconfig *kcfg;

	const void *elf_bytes;

	size_t elf_bytes_sz = 0;



	skel = test_skeleton__open();

	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
@@ -91,6 +93,10 @@ void test_skeleton(void) 
	CHECK(bss->kern_ver != kcfg->LINUX_KERNEL_VERSION, "ext2",

	      "got %d != exp %d\n", bss->kern_ver, kcfg->LINUX_KERNEL_VERSION);



	elf_bytes = test_skeleton__elf_bytes(&elf_bytes_sz);

	ASSERT_OK_PTR(elf_bytes, "elf_bytes");

	ASSERT_GE(elf_bytes_sz, 0, "elf_bytes_sz");



cleanup:

	test_skeleton__destroy(skel);

}