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One stage zygisk loading

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LoveSy 2024-01-07 22:13:43 +08:00 committed by John Wu
parent df66458db6
commit 79334b7702
3 changed files with 7 additions and 22 deletions
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20
native/src/core/zygisk/entry.cpp
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@ -16,25 +16,11 @@ using namespace std;
void *self_handle = nullptr; void *self_handle = nullptr;
string native_bridge = "0"; string native_bridge = "0";
extern "C" [[maybe_unused]] void zygisk_inject_entry(void *handle) {
self_handle = handle;
zygisk_logging();
hook_functions();
ZLOGD("load success\n");
}
static bool is_compatible_with(uint32_t) { static bool is_compatible_with(uint32_t) {
auto name = get_prop(NBPROP); auto name = get_prop(NBPROP);
android_dlextinfo info = { android_logging();
.flags = ANDROID_DLEXT_FORCE_LOAD hook_functions();
}; ZLOGD("load success\n");
void *handle = android_dlopen_ext(name.data(), RTLD_LAZY, &info);
if (handle) {
auto entry = reinterpret_cast<void (*)(void *)>(dlsym(handle, "zygisk_inject_entry"));
if (entry) {
entry(handle);
}
}
return false; return false;
} }

8
native/src/core/zygisk/hook.cpp
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@ -187,6 +187,7 @@ DCL_HOOK_FUNC(static int, pthread_attr_destroy, void *target) {
if (should_unmap_zygisk) { if (should_unmap_zygisk) {
g_hook->restore_plt_hook(); g_hook->restore_plt_hook();
if (should_unmap_zygisk) { if (should_unmap_zygisk) {
ZLOGV("dlclosing self\n");
delete g_hook; delete g_hook;
// Because both `pthread_attr_destroy` and `dlclose` have the same function signature, // Because both `pthread_attr_destroy` and `dlclose` have the same function signature,
@ -202,13 +203,12 @@ DCL_HOOK_FUNC(static int, pthread_attr_destroy, void *target) {
// it should be safe to assume all dlclose's in libnativebridge are for zygisk_loader // it should be safe to assume all dlclose's in libnativebridge are for zygisk_loader
DCL_HOOK_FUNC(static int, dlclose, void *handle) { DCL_HOOK_FUNC(static int, dlclose, void *handle) {
static bool kDone = false; if (!self_handle) {
if (!kDone) {
ZLOGV("dlclose zygisk_loader\n"); ZLOGV("dlclose zygisk_loader\n");
kDone = true; self_handle = handle;
g_hook->post_native_bridge_load(); g_hook->post_native_bridge_load();
} }
[[clang::musttail]] return old_dlclose(handle); return 0;
} }
#undef DCL_HOOK_FUNC #undef DCL_HOOK_FUNC

1
native/src/exported_sym.txt
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@ -1,4 +1,3 @@
{ {
zygisk_inject_entry;
NativeBridgeItf; NativeBridgeItf;
}; };