| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | /* Copyright (c) 2022 Facebook */ |
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| 3 | |
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| 4 | #include "vmlinux.h" |
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| 5 | #include <bpf/bpf_helpers.h> |
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| 6 | #include <bpf/bpf_tracing.h> |
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| 7 | |
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| 8 | const volatile int my_pid; |
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| 9 | |
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| 10 | bool abc1_called; |
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| 11 | bool abc2_called; |
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| 12 | bool custom1_called; |
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| 13 | bool custom2_called; |
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| 14 | bool kprobe1_called; |
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| 15 | bool xyz_called; |
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| 16 | |
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| 17 | SEC("abc" ) |
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| 18 | int abc1(void *ctx) |
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| 19 | { |
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| 20 | abc1_called = true; |
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| 21 | return 0; |
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| 22 | } |
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| 23 | |
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| 24 | SEC("abc/whatever" ) |
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| 25 | int abc2(void *ctx) |
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| 26 | { |
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| 27 | abc2_called = true; |
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| 28 | return 0; |
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| 29 | } |
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| 30 | |
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| 31 | SEC("custom" ) |
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| 32 | int custom1(void *ctx) |
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| 33 | { |
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| 34 | custom1_called = true; |
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| 35 | return 0; |
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| 36 | } |
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| 37 | |
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| 38 | SEC("custom/something" ) |
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| 39 | int custom2(void *ctx) |
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| 40 | { |
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| 41 | custom2_called = true; |
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| 42 | return 0; |
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| 43 | } |
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| 44 | |
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| 45 | SEC("kprobe" ) |
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| 46 | int kprobe1(void *ctx) |
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| 47 | { |
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| 48 | kprobe1_called = true; |
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| 49 | return 0; |
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| 50 | } |
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| 51 | |
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| 52 | SEC("xyz/blah" ) |
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| 53 | int xyz(void *ctx) |
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| 54 | { |
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| 55 | int whatever; |
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| 56 | |
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| 57 | /* use sleepable helper, custom handler should set sleepable flag */ |
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| 58 | bpf_copy_from_user(&whatever, sizeof(whatever), NULL); |
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| 59 | xyz_called = true; |
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| 60 | return 0; |
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| 61 | } |
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| 62 | |
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| 63 | char _license[] SEC("license" ) = "GPL" ; |
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| 64 | |
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