1 // SPDX-License-Identifier: GPL-2.0
3 #include <bpf/bpf_helpers.h>
4 #include <bpf/bpf_tracing.h>
7 char _license[] SEC("license") = "GPL";
9 __u64 uprobe_multi_func_1_addr = 0;
10 __u64 uprobe_multi_func_2_addr = 0;
11 __u64 uprobe_multi_func_3_addr = 0;
13 __u64 uprobe_multi_func_1_result = 0;
14 __u64 uprobe_multi_func_2_result = 0;
15 __u64 uprobe_multi_func_3_result = 0;
17 __u64 uretprobe_multi_func_1_result = 0;
18 __u64 uretprobe_multi_func_2_result = 0;
19 __u64 uretprobe_multi_func_3_result = 0;
21 __u64 uprobe_multi_sleep_result = 0;
26 bool test_cookie = false;
29 static __always_inline bool verify_sleepable_user_copy(void)
33 bpf_copy_from_user(data, sizeof(data), user_ptr);
34 return bpf_strncmp(data, sizeof(data), "test_data") == 0;
37 static void uprobe_multi_check(void *ctx, bool is_return, bool is_sleep)
39 child_pid = bpf_get_current_pid_tgid() >> 32;
41 if (pid && child_pid != pid)
44 __u64 cookie = test_cookie ? bpf_get_attach_cookie(ctx) : 0;
45 __u64 addr = bpf_get_func_ip(ctx);
47 #define SET(__var, __addr, __cookie) ({ \
48 if (addr == __addr && \
49 (!test_cookie || (cookie == __cookie))) \
54 SET(uretprobe_multi_func_1_result, uprobe_multi_func_1_addr, 2);
55 SET(uretprobe_multi_func_2_result, uprobe_multi_func_2_addr, 3);
56 SET(uretprobe_multi_func_3_result, uprobe_multi_func_3_addr, 1);
58 SET(uprobe_multi_func_1_result, uprobe_multi_func_1_addr, 3);
59 SET(uprobe_multi_func_2_result, uprobe_multi_func_2_addr, 1);
60 SET(uprobe_multi_func_3_result, uprobe_multi_func_3_addr, 2);
65 if (is_sleep && verify_sleepable_user_copy())
66 uprobe_multi_sleep_result += 1;
69 SEC("uprobe.multi//proc/self/exe:uprobe_multi_func_*")
70 int uprobe(struct pt_regs *ctx)
72 uprobe_multi_check(ctx, false, false);
76 SEC("uretprobe.multi//proc/self/exe:uprobe_multi_func_*")
77 int uretprobe(struct pt_regs *ctx)
79 uprobe_multi_check(ctx, true, false);
83 SEC("uprobe.multi.s//proc/self/exe:uprobe_multi_func_*")
84 int uprobe_sleep(struct pt_regs *ctx)
86 uprobe_multi_check(ctx, false, true);
90 SEC("uretprobe.multi.s//proc/self/exe:uprobe_multi_func_*")
91 int uretprobe_sleep(struct pt_regs *ctx)
93 uprobe_multi_check(ctx, true, true);
97 SEC("uprobe.multi//proc/self/exe:uprobe_multi_func_*")
98 int uprobe_extra(struct pt_regs *ctx)