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1b866a65
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NEMU
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NEMU
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体验新版 GitCode,发现更多精彩内容 >>
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1b866a65
编写于
10月 14, 2019
作者:
Z
Zihao Yu
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差异文件
Merge branch 'improve-debug' into 'rv64'
Improve debug See merge request projectn/nemu!20
上级
ce6f7448
5659ca97
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
25 addition
and
23 deletion
+25
-23
include/debug.h
include/debug.h
+4
-0
include/monitor/log.h
include/monitor/log.h
+2
-1
src/monitor/cpu-exec.c
src/monitor/cpu-exec.c
+19
-22
未找到文件。
include/debug.h
浏览文件 @
1b866a65
...
...
@@ -17,6 +17,10 @@
fprintf(stderr, "\33[1;31m"); \
fprintf(stderr, __VA_ARGS__); \
fprintf(stderr, "\33[0m\n"); \
extern void isa_reg_display(); \
extern void monitor_statistic(); \
isa_reg_display(); \
monitor_statistic(); \
assert(cond); \
} \
} while (0)
...
...
include/monitor/log.h
浏览文件 @
1b866a65
...
...
@@ -7,7 +7,8 @@
extern
FILE
*
log_fp
;
# define log_write(...) \
do { \
if (log_fp != NULL) { \
extern bool log_enable(); \
if (log_fp != NULL && log_enable()) { \
fprintf(log_fp, __VA_ARGS__); \
fflush(log_fp); \
} \
...
...
src/monitor/cpu-exec.c
浏览文件 @
1b866a65
#include "nemu.h"
#include "monitor/monitor.h"
#include "monitor/watchpoint.h"
#include "monitor/diff-test.h"
#include <stdlib.h>
/* The assembly code of instructions executed is only output to the screen
* when the number of instructions executed is less than this value.
...
...
@@ -9,10 +11,16 @@
*/
#define MAX_INSTR_TO_PRINT 10
/* restrict the size of log file */
#define LOG_MAX (1024 * 1024)
// control when the log is printed
#define LOG_START (0)
// restrict the size of log file
#define LOG_END (1024 * 1024 * 50)
NEMUState
nemu_state
=
{.
state
=
NEMU_STOP
};
static
uint64_t
g_nr_guest_instr
=
0
;
vaddr_t
exec_once
(
void
);
void
asm_print
(
vaddr_t
ori_pc
,
int
instr_len
,
bool
print_flag
);
int
goodtrap
(
void
)
{
return
(
nemu_state
.
state
==
NEMU_END
&&
nemu_state
.
halt_ret
==
0
);
...
...
@@ -22,16 +30,14 @@ void interpret_rtl_exit(int state, vaddr_t halt_pc, uint32_t halt_ret) {
nemu_state
=
(
NEMUState
)
{
.
state
=
state
,
.
halt_pc
=
halt_pc
,
.
halt_ret
=
halt_ret
};
}
vaddr_t
exec_once
(
void
);
void
difftest_step
(
vaddr_t
ori_pc
,
vaddr_t
next_pc
);
void
asm_print
(
vaddr_t
ori_pc
,
int
instr_len
,
bool
print_flag
);
static
uint64_t
g_nr_guest_instr
=
0
;
void
monitor_statistic
(
void
)
{
Log
(
"total guest instructions = %ld"
,
g_nr_guest_instr
);
}
bool
log_enable
(
void
)
{
return
(
g_nr_guest_instr
>=
LOG_START
)
&&
(
g_nr_guest_instr
<=
LOG_END
);
}
/* Simulate how the CPU works. */
void
cpu_exec
(
uint64_t
n
)
{
switch
(
nemu_state
.
state
)
{
...
...
@@ -48,19 +54,12 @@ void cpu_exec(uint64_t n) {
* instruction decode, and the actual execution. */
__attribute__
((
unused
))
vaddr_t
seq_pc
=
exec_once
();
#if defined(DIFF_TEST)
difftest_step
(
ori_pc
,
cpu
.
pc
);
#endif
difftest_step
(
ori_pc
,
cpu
.
pc
);
g_nr_guest_instr
++
;
#ifdef DEBUG
if
(
g_nr_guest_instr
<
LOG_MAX
)
{
asm_print
(
ori_pc
,
seq_pc
-
ori_pc
,
n
<
MAX_INSTR_TO_PRINT
);
}
else
if
(
g_nr_guest_instr
==
LOG_MAX
)
{
log_write
(
"
\n
[Warning] To restrict the size of log file, "
"we do not record more instruction trace beyond this point.
\n
"
"To capture more trace, you can modify the LOG_MAX macro in %s
\n\n
"
,
__FILE__
);
}
/* TODO: check watchpoints here. */
WP
*
wp
=
scan_watchpoint
();
...
...
@@ -70,11 +69,8 @@ void cpu_exec(uint64_t n) {
wp
->
old_val
=
wp
->
new_val
;
return
;
}
#endif
g_nr_guest_instr
++
;
#ifdef HAS_IOE
extern
void
device_update
();
device_update
();
...
...
@@ -87,10 +83,11 @@ void cpu_exec(uint64_t n) {
case
NEMU_RUNNING
:
nemu_state
.
state
=
NEMU_STOP
;
break
;
case
NEMU_END
:
case
NEMU_ABORT
:
_
Log
(
"nemu: %s
\33
[0m at pc = "
FMT_WORD
"
\n\n
"
,
Log
(
"nemu: %s
\33
[0m at pc = "
FMT_WORD
"
\n\n
"
,
(
nemu_state
.
state
==
NEMU_ABORT
?
"
\33
[1;31mABORT"
:
(
nemu_state
.
halt_ret
==
0
?
"
\33
[1;32mHIT GOOD TRAP"
:
"
\33
[1;31mHIT BAD TRAP"
)),
nemu_state
.
halt_pc
);
monitor_statistic
();
if
(
nemu_state
.
state
==
NEMU_ABORT
)
abort
();
}
}
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