xin/ysyx-workbench
1
0
Fork 0
Code Issues Pull requests 1 Projects Releases Packages Wiki Activity Actions

refactor: drop internal difftest support

Browse source
This commit is contained in:
xinyangli 2024-07-23 17:15:35 +08:00
parent f852ee8689
commit 422ff9e006
Signed by: xin
SSH key fingerprint: SHA256:qZ/tzd8lYRtUFSrfBDBMcUqV4GHKxqeqRA3huItgvbk
21 changed files with 192 additions and 433 deletions
Download patch file Download diff file Expand all files Collapse all files

33
nemu/src/engine/interpreter/hostcall.c
View file

@ -13,20 +13,19 @@
* See the Mulan PSL v2 for more details.
***************************************************************************************/
#include <utils.h>
#include <cpu/ifetch.h>
#include <difftest.h>
#include <isa.h>
#include <cpu/difftest.h>
#include <utils.h>
void set_nemu_state(int state, vaddr_t pc, int halt_ret) {
difftest_skip_ref();
nemu_do_difftest = false;
nemu_state.state = state;
nemu_state.halt_pc = pc;
nemu_state.halt_ret = halt_ret;
}
__attribute__((noinline))
void invalid_inst(vaddr_t thispc) {
__attribute__((noinline)) void invalid_inst(vaddr_t thispc) {
uint32_t temp[2];
vaddr_t pc = thispc;
temp[0] = inst_fetch(&pc, 4);
@ -34,18 +33,24 @@ void invalid_inst(vaddr_t thispc) {
uint8_t *p = (uint8_t *)temp;
printf("invalid opcode(PC = " FMT_WORD "):\n"
"\t%02x %02x %02x %02x %02x %02x %02x %02x ...\n"
"\t%08x %08x...\n",
thispc, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], temp[0], temp[1]);
"\t%02x %02x %02x %02x %02x %02x %02x %02x ...\n"
"\t%08x %08x...\n",
thispc, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], temp[0],
temp[1]);
printf("There are two cases which will trigger this unexpected exception:\n"
"1. The instruction at PC = " FMT_WORD " is not implemented.\n"
"2. Something is implemented incorrectly.\n", thispc);
printf("Find this PC(" FMT_WORD ") in the disassembling result to distinguish which case it is.\n\n", thispc);
"1. The instruction at PC = " FMT_WORD " is not implemented.\n"
"2. Something is implemented incorrectly.\n",
thispc);
printf("Find this PC(" FMT_WORD
") in the disassembling result to distinguish which case it is.\n\n",
thispc);
printf(ANSI_FMT("If it is the first case, see\n%s\nfor more details.\n\n"
"If it is the second case, remember:\n"
"* The machine is always right!\n"
"* Every line of untested code is always wrong!\n\n", ANSI_FG_RED), isa_logo);
"If it is the second case, remember:\n"
"* The machine is always right!\n"
"* Every line of untested code is always wrong!\n\n",
ANSI_FG_RED),
isa_logo);
set_nemu_state(NEMU_ABORT, thispc, -1);
}

15
nemu/src/engine/interpreter/init.c
View file

@ -17,17 +17,22 @@
#include <cpu/cpu.h>
#include <gdbstub.h>
void sdb_mainloop();
int gdbstub_loop();
extern bool enable_gdbstub;
void engine_start() {
#ifdef CONFIG_TARGET_AM
cpu_exec(-1);
#else
/* Receive commands from user. */
int nemu_gdbstub_run();
if (nemu_gdbstub_run()) {
Error("gdbstub exited abnormally");
exit(1);
int ret = 0;
if (enable_gdbstub) {
if ((ret = gdbstub_loop())) {
Error("gdbstub exited abnormally");
exit(ret);
}
} else {
cpu_exec(-1);
}
#endif
}