| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | /* Converted from tools/testing/selftests/bpf/verifier/btf_ctx_access.c */ |
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| 3 | |
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| 4 | #include <linux/bpf.h> |
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| 5 | #include <bpf/bpf_helpers.h> |
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| 6 | #include "bpf_misc.h" |
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| 7 | |
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| 8 | SEC("fentry/bpf_modify_return_test" ) |
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| 9 | __description("btf_ctx_access accept" ) |
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| 10 | __success __retval(0) |
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| 11 | __naked void btf_ctx_access_accept(void) |
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| 12 | { |
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| 13 | asm volatile (" \ |
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| 14 | r2 = *(u32*)(r1 + 8); /* load 2nd argument value (int pointer) */\ |
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| 15 | r0 = 0; \ |
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| 16 | exit; \ |
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| 17 | " ::: __clobber_all); |
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| 18 | } |
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| 19 | |
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| 20 | SEC("fentry/bpf_fentry_test9" ) |
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| 21 | __description("btf_ctx_access u32 pointer accept" ) |
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| 22 | __success __retval(0) |
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| 23 | __naked void ctx_access_u32_pointer_accept(void) |
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| 24 | { |
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| 25 | asm volatile (" \ |
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| 26 | r2 = *(u32*)(r1 + 0); /* load 1nd argument value (u32 pointer) */\ |
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| 27 | r0 = 0; \ |
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| 28 | exit; \ |
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| 29 | " ::: __clobber_all); |
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| 30 | } |
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| 31 | |
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| 32 | char _license[] SEC("license" ) = "GPL" ; |
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| 33 | |
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