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selftests/bpf: Add test for __nullable suffix in tp_btf
[ Upstream commit 2060f07 ] Add a tracepoint with __nullable suffix in bpf_testmod, and add cases for it: $ ./test_progs -t "tp_btf_nullable" torvalds#406/1 tp_btf_nullable/handle_tp_btf_nullable_bare1:OK torvalds#406/2 tp_btf_nullable/handle_tp_btf_nullable_bare2:OK torvalds#406 tp_btf_nullable:OK Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Philo Lu <lulie@linux.alibaba.com> Link: https://lore.kernel.org/r/20240911033719.91468-3-lulie@linux.alibaba.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Stable-dep-of: cb4158c ("bpf: Mark raw_tp arguments with PTR_MAYBE_NULL") Signed-off-by: Sasha Levin <sashal@kernel.org>
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// SPDX-License-Identifier: GPL-2.0 | ||
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#include <test_progs.h> | ||
#include "test_tp_btf_nullable.skel.h" | ||
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void test_tp_btf_nullable(void) | ||
{ | ||
if (!env.has_testmod) { | ||
test__skip(); | ||
return; | ||
} | ||
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RUN_TESTS(test_tp_btf_nullable); | ||
} |
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// SPDX-License-Identifier: GPL-2.0 | ||
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#include "vmlinux.h" | ||
#include <bpf/bpf_helpers.h> | ||
#include <bpf/bpf_tracing.h> | ||
#include "../bpf_testmod/bpf_testmod.h" | ||
#include "bpf_misc.h" | ||
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SEC("tp_btf/bpf_testmod_test_nullable_bare") | ||
__failure __msg("R1 invalid mem access 'trusted_ptr_or_null_'") | ||
int BPF_PROG(handle_tp_btf_nullable_bare1, struct bpf_testmod_test_read_ctx *nullable_ctx) | ||
{ | ||
return nullable_ctx->len; | ||
} | ||
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SEC("tp_btf/bpf_testmod_test_nullable_bare") | ||
int BPF_PROG(handle_tp_btf_nullable_bare2, struct bpf_testmod_test_read_ctx *nullable_ctx) | ||
{ | ||
if (nullable_ctx) | ||
return nullable_ctx->len; | ||
return 0; | ||
} | ||
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char _license[] SEC("license") = "GPL"; |