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gdbstub: Implement set_thread (H pkt) with new infra 

Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-7-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
This commit is contained in:
Jon Doron 2019-05-29 09:41:34 +03:00 committed by Alex Bennée
parent ccc47d5d01
commit 3a9651d674
1 changed files with 53 additions and 30 deletions
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83
gdbstub.c
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@ -1564,6 +1564,51 @@ static void handle_cont_with_sig(GdbCmdContext *gdb_ctx, void *user_ctx)
gdb_continue(gdb_ctx->s);
}
static void handle_set_thread(GdbCmdContext *gdb_ctx, void *user_ctx)
{
CPUState *cpu;
if (gdb_ctx->num_params != 2) {
put_packet(gdb_ctx->s, "E22");
return;
}
if (gdb_ctx->params[1].thread_id.kind == GDB_READ_THREAD_ERR) {
put_packet(gdb_ctx->s, "E22");
return;
}
if (gdb_ctx->params[1].thread_id.kind != GDB_ONE_THREAD) {
put_packet(gdb_ctx->s, "OK");
return;
}
cpu = gdb_get_cpu(gdb_ctx->s, gdb_ctx->params[1].thread_id.pid,
gdb_ctx->params[1].thread_id.tid);
if (!cpu) {
put_packet(gdb_ctx->s, "E22");
return;
}
/*
* Note: This command is deprecated and modern gdb's will be using the
* vCont command instead.
*/
switch (gdb_ctx->params[0].opcode) {
case 'c':
gdb_ctx->s->c_cpu = cpu;
put_packet(gdb_ctx->s, "OK");
break;
case 'g':
gdb_ctx->s->g_cpu = cpu;
put_packet(gdb_ctx->s, "OK");
break;
default:
put_packet(gdb_ctx->s, "E22");
break;
}
}
static int gdb_handle_packet(GDBState *s, const char *line_buf)
{
CPUState *cpu;
@ -1577,7 +1622,6 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf)
char thread_id[16];
uint8_t *registers;
target_ulong addr, len;
GDBThreadIdKind thread_kind;
const GdbCmdParseEntry *cmd_parser = NULL;
trace_gdbstub_io_command(line_buf);
@ -1840,35 +1884,14 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf)
put_packet(s, "E22");
break;
case 'H':
type = *p++;
thread_kind = read_thread_id(p, &p, &pid, &tid);
if (thread_kind == GDB_READ_THREAD_ERR) {
put_packet(s, "E22");
break;
}
if (thread_kind != GDB_ONE_THREAD) {
put_packet(s, "OK");
break;
}
cpu = gdb_get_cpu(s, pid, tid);
if (cpu == NULL) {
put_packet(s, "E22");
break;
}
switch (type) {
case 'c':
s->c_cpu = cpu;
put_packet(s, "OK");
break;
case 'g':
s->g_cpu = cpu;
put_packet(s, "OK");
break;
default:
put_packet(s, "E22");
break;
{
static const GdbCmdParseEntry set_thread_cmd_desc = {
.handler = handle_set_thread,
.cmd = "H",
.cmd_startswith = 1,
.schema = "o.t0"
};
cmd_parser = &set_thread_cmd_desc;
}
break;
case 'T':