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gdb stub breakpoints support

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@332 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-07-26 12:06:08 +00:00
parent d6b4936796
commit 4c3a88a284
11 changed files with 151 additions and 25 deletions
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55
gdbstub.c
View file

@ -37,7 +37,7 @@
#include "thunk.h"
#include "exec.h"
//#define DEBUG_GDB
#define DEBUG_GDB
int gdbstub_fd = -1;
@ -283,11 +283,11 @@ static int memory_rw(uint8_t *buf, uint32_t addr, int len, int is_write)
}
/* port = 0 means default port */
int cpu_gdbstub(void *opaque, void (*main_loop)(void *opaque), int port)
int cpu_gdbstub(void *opaque, int (*main_loop)(void *opaque), int port)
{
CPUState *env;
const char *p;
int ret, ch, nb_regs, i;
int ret, ch, nb_regs, i, type;
char buf[4096];
uint8_t mem_buf[2000];
uint32_t *registers;
@ -309,8 +309,19 @@ int cpu_gdbstub(void *opaque, void (*main_loop)(void *opaque), int port)
put_packet(buf);
break;
case 'c':
main_loop(opaque);
snprintf(buf, sizeof(buf), "S%02x", 0);
if (*p != '\0') {
addr = strtoul(p, (char **)&p, 16);
env = cpu_gdbstub_get_env(opaque);
#if defined(TARGET_I386)
env->eip = addr;
#endif
}
ret = main_loop(opaque);
if (ret == EXCP_DEBUG)
ret = SIGTRAP;
else
ret = 0;
snprintf(buf, sizeof(buf), "S%02x", ret);
put_packet(buf);
break;
case 'g':
@ -379,6 +390,40 @@ int cpu_gdbstub(void *opaque, void (*main_loop)(void *opaque), int port)
else
put_packet("OK");
break;
case 'Z':
type = strtoul(p, (char **)&p, 16);
if (*p == ',')
p++;
addr = strtoul(p, (char **)&p, 16);
if (*p == ',')
p++;
len = strtoul(p, (char **)&p, 16);
if (type == 0 || type == 1) {
env = cpu_gdbstub_get_env(opaque);
if (cpu_breakpoint_insert(env, addr) < 0)
goto breakpoint_error;
put_packet("OK");
} else {
breakpoint_error:
put_packet("ENN");
}
break;
case 'z':
type = strtoul(p, (char **)&p, 16);
if (*p == ',')
p++;
addr = strtoul(p, (char **)&p, 16);
if (*p == ',')
p++;
len = strtoul(p, (char **)&p, 16);
if (type == 0 || type == 1) {
env = cpu_gdbstub_get_env(opaque);
cpu_breakpoint_remove(env, addr);
put_packet("OK");
} else {
goto breakpoint_error;
}
break;
default:
/* put empty packet */
buf[0] = '\0';