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feat: export gdbstub api, connect to gdb

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This commit is contained in:
xinyangli 2024-07-16 09:50:17 +08:00
parent cac75f1698
commit 5de642f998
Signed by: xin
SSH key fingerprint: SHA256:qZ/tzd8lYRtUFSrfBDBMcUqV4GHKxqeqRA3huItgvbk
8 changed files with 136 additions and 9 deletions
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5
include/api.hpp
View file

@ -3,10 +3,13 @@
#include <cstddef>
#include <filesystem>
#include <gdbstub.h>
#include <string>
#include <vector>
extern "C" {
#include <gdbstub.h>
}
// Target dynamic library has to implement these functions
struct DiffTargetApi {
typedef void (*cont_t)(void *args, gdb_action_t *res);

24
include/difftest.hpp
View file

@ -2,9 +2,11 @@
#define _DIFFTEST_DIFFTEST_H_
#include "api.hpp"
#include <filesystem>
#include <gdbstub.h>
#include <stdexcept>
#include <vector>
extern "C" {
#include <gdbstub.h>
}
#include <iostream>
class Difftest {
@ -12,12 +14,30 @@ private:
Target dut;
std::vector<Target> refs;
// target used for read_reg, write_reg, read_mem, write_mem
Target *current_target = &dut;
public:
Difftest(Target &&dut, std::vector<Target> &&refs);
void setup(const std::filesystem::path &memory_file);
gdb_action_t stepi();
// Export API for gdbstub
gdb_action_t cont();
gdb_action_t stepi();
int read_reg(int regno, size_t *value);
int write_reg(int regno, size_t value);
int read_mem(size_t addr, size_t len, void *val);
int write_mem(size_t addr, size_t len, void *val);
bool set_bp(size_t addr, bp_type_t type);
bool del_bp(size_t addr, bp_type_t type);
arch_info_t get_arch() const {
std::cout << dut.arch.reg_num << std::endl;
return dut.arch;
}
// Other APi
static bool check(Target &dut, Target &ref) {
for (int r = 0; r < dut.arch.reg_num; r++) {
size_t regdut = 0, regref = 0;