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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 https://github.com/backslashxx/KernelSU/issues/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 22:17:02 +08:00
parent 656a23a250
commit 49b01aad74
10 changed files with 218 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
kernel/ksu.c
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@@ -36,6 +36,10 @@ extern void ksu_sucompat_init();
extern void ksu_sucompat_exit();
extern void ksu_ksud_init();
extern void ksu_ksud_exit();
#ifdef CONFIG_KSU_TRACEPOINT_HOOK
extern void ksu_trace_register();
extern void ksu_trace_unregister();
#endif
int __init kernelsu_init(void)
{
@@ -56,13 +60,17 @@ int __init kernelsu_init(void)
ksu_allowlist_init();
ksu_throne_tracker_init();
#ifdef CONFIG_KPROBES
#ifdef CONFIG_KSU_KPROBES_HOOK
ksu_sucompat_init();
ksu_ksud_init();
#else
pr_alert("KPROBES is disabled, KernelSU may not work, please check https://kernelsu.org/guide/how-to-integrate-for-non-gki.html");
#endif
#ifdef CONFIG_KSU_TRACEPOINT_HOOK
ksu_trace_register();
#endif
#ifdef MODULE
#ifndef CONFIG_KSU_DEBUG
kobject_del(&THIS_MODULE->mkobj.kobj);
@@ -79,11 +87,15 @@ void kernelsu_exit(void)
destroy_workqueue(ksu_workqueue);
#ifdef CONFIG_KPROBES
#ifdef CONFIG_KSU_KPROBES_HOOK
ksu_ksud_exit();
ksu_sucompat_exit();
#endif
#ifdef CONFIG_KSU_TRACEPOINT_HOOK
ksu_trace_unregister();
#endif
ksu_core_exit();
}