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kernel: Introducing Tracepoint Hook Type Support

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Tracepoint is a predefined hook point in the kernel, compared to Kprobe,
it is more stable and has lower performance overhead, although compatibility
is relatively poor, it is still worth trying

By the way, we have also included the config definitions related to hook types
in Kconfig, to enhance cleanliness

Improve and merge types that do not require hooks

Introducing the hook type prctl

These patches is based on backslashxx/KernelSU#5

Co-authored-by: Cloud_Yun <1770669041@qq.com>
Co-authored-by: Prslc <prslc113@gmail.com>
Co-authored-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>

Signed-off-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>
This commit is contained in:
ShirkNeko
2025-08-14 22:19:07 +08:00
parent 3a5bcb0e09
commit 68f2f5a0ae
8 changed files with 227 additions and 14 deletions
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28
kernel/core_hook.c
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@@ -494,6 +494,34 @@ int ksu_handle_prctl(int option, unsigned long arg2, unsigned long arg3,
return 0;
}
// Checking hook usage
if (arg2 == CMD_HOOK_TYPE) {
const char *hook_type;
#if defined(CONFIG_KSU_KPROBES_HOOK)
hook_type = "Kprobes";
#elif defined(CONFIG_KSU_TRACEPOINT_HOOK)
hook_type = "Tracepoint";
#elif defined(CONFIG_KSU_MANUAL_HOOK)
hook_type = "Manual";
#else
hook_type = "Unknown";
#endif
size_t len = strlen(hook_type) + 1;
if (copy_to_user((void __user *)arg3, hook_type, len)) {
pr_err("hook_type: copy_to_user failed\n");
return 0;
}
if (copy_to_user(result, &reply_ok, sizeof(reply_ok))) {
pr_err("hook_type: prctl reply error\n");
}
return 0;
}
#ifdef CONFIG_KPM
// ADD: 添加KPM模块控制
if(sukisu_is_kpm_control_code(arg2)) {