You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
25 lines
714 B
25 lines
714 B
4 months ago
|
#include <android/dlext.h>
|
||
|
|
#include <dlfcn.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
extern "C" void __attribute__((section(".custom_text"))) text_before_start_of_gap() {}
|
||
|
|
char __attribute__((section(".custom_bss"))) end_of_gap[0x1000];
|
||
|
|
|
||
|
|
extern "C" void* get_inner() {
|
||
|
|
android_dlextinfo info = {};
|
||
|
|
info.flags = ANDROID_DLEXT_RESERVED_ADDRESS;
|
||
|
|
|
||
|
|
char* start_of_gap =
|
||
|
|
reinterpret_cast<char*>(reinterpret_cast<uintptr_t>(text_before_start_of_gap) & ~0xfffull) +
|
||
|
|
0x1000;
|
||
|
|
info.reserved_addr = start_of_gap;
|
||
|
|
info.reserved_size = end_of_gap - start_of_gap;
|
||
|
|
|
||
|
|
void *handle = android_dlopen_ext("libsegment_gap_inner.so", RTLD_NOW, &info);
|
||
|
|
if (!handle) {
|
||
|
|
__builtin_trap();
|
||
|
|
}
|
||
|
|
|
||
|
|
return dlsym(handle, "inner");
|
||
|
|
}
|