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Watchpoint support (previous commit got eaten by Savannah server crash).

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2479 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2007-03-16 23:58:11 +00:00
parent b35d7448b1
commit 6658ffb81e
6 changed files with 186 additions and 0 deletions
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18
gdbstub.c
View file

@ -856,6 +856,12 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf)
if (cpu_breakpoint_insert(env, addr) < 0)
goto breakpoint_error;
put_packet(s, "OK");
#ifndef CONFIG_USER_ONLY
} else if (type == 2) {
if (cpu_watchpoint_insert(env, addr) < 0)
goto breakpoint_error;
put_packet(s, "OK");
#endif
} else {
breakpoint_error:
put_packet(s, "E22");
@ -872,6 +878,11 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf)
if (type == 0 || type == 1) {
cpu_breakpoint_remove(env, addr);
put_packet(s, "OK");
#ifndef CONFIG_USER_ONLY
} else if (type == 2) {
cpu_watchpoint_remove(env, addr);
put_packet(s, "OK");
#endif
} else {
goto breakpoint_error;
}
@ -914,6 +925,13 @@ static void gdb_vm_stopped(void *opaque, int reason)
cpu_single_step(s->env, 0);
if (reason == EXCP_DEBUG) {
if (s->env->watchpoint_hit) {
snprintf(buf, sizeof(buf), "T%02xwatch:%x;", SIGTRAP,
s->env->watchpoint[s->env->watchpoint_hit - 1].vaddr);
put_packet(s, buf);
s->env->watchpoint_hit = 0;
return;
}
tb_flush(s->env);
ret = SIGTRAP;
} else if (reason == EXCP_INTERRUPT) {