Romain Malmain 86d38fbfa7
Add pre/post cpu_run hooks + Refactoring (#82)
* Add cpu_run pre/post exec hooks, to hook the cpu just before / after it runs target code.
* Refactor hooks to separate them in different files
* Remove most extern variables
* Reduce the amount of extra code in QEMU
* Add clang-format script
2024-08-13 16:56:00 +02:00

44 lines
1.2 KiB
C

#pragma once
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "exec/exec-all.h"
#include "exec/tb-flush.h"
#include "libafl/exit.h"
#include "libafl/hook.h"
#define LIBAFL_TABLES_SIZE 16384
#define LIBAFL_TABLES_HASH(p) \
(((13 * ((size_t)(p))) ^ (((size_t)(p)) >> 15)) % LIBAFL_TABLES_SIZE)
struct libafl_instruction_hook {
// data
uint64_t data;
size_t num;
target_ulong addr;
// helpers
TCGHelperInfo helper_info;
// next
struct libafl_instruction_hook* next;
};
size_t libafl_qemu_add_instruction_hooks(target_ulong pc,
void (*callback)(uint64_t data,
target_ulong pc),
uint64_t data, int invalidate);
int libafl_qemu_remove_instruction_hook(size_t num, int invalidate);
size_t libafl_qemu_remove_instruction_hooks_at(target_ulong addr,
int invalidate);
struct libafl_instruction_hook*
libafl_search_instruction_hook(target_ulong addr);
void libafl_qemu_hook_instruction_run(vaddr pc_next);