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gdbstub: Implement file io (F pkt) with new infra 

Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-15-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
This commit is contained in:
Jon Doron 2019-05-29 09:41:42 +03:00 committed by Alex Bennée
parent 397d137046
commit 4b20fab101
1 changed files with 26 additions and 22 deletions
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48
gdbstub.c
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@ -1793,6 +1793,25 @@ static void handle_read_all_regs(GdbCmdContext *gdb_ctx, void *user_ctx)
put_packet(gdb_ctx->s, gdb_ctx->str_buf);
}
static void handle_file_io(GdbCmdContext *gdb_ctx, void *user_ctx)
{
if (gdb_ctx->num_params >= 2 && gdb_ctx->s->current_syscall_cb) {
target_ulong ret, err;
ret = (target_ulong)gdb_ctx->params[0].val_ull;
err = (target_ulong)gdb_ctx->params[1].val_ull;
gdb_ctx->s->current_syscall_cb(gdb_ctx->s->c_cpu, ret, err);
gdb_ctx->s->current_syscall_cb = NULL;
}
if (gdb_ctx->num_params >= 3 && gdb_ctx->params[2].opcode == (uint8_t)'C') {
put_packet(gdb_ctx->s, "T02");
return;
}
gdb_continue(gdb_ctx->s);
}
static int gdb_handle_packet(GDBState *s, const char *line_buf)
{
CPUState *cpu;
@ -1934,28 +1953,13 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf)
return RS_IDLE;
case 'F':
{
target_ulong ret;
target_ulong err;
ret = strtoull(p, (char **)&p, 16);
if (*p == ',') {
p++;
err = strtoull(p, (char **)&p, 16);
} else {
err = 0;
}
if (*p == ',')
p++;
type = *p;
if (s->current_syscall_cb) {
s->current_syscall_cb(s->c_cpu, ret, err);
s->current_syscall_cb = NULL;
}
if (type == 'C') {
put_packet(s, "T02");
} else {
gdb_continue(s);
}
static const GdbCmdParseEntry file_io_cmd_desc = {
.handler = handle_file_io,
.cmd = "F",
.cmd_startswith = 1,
.schema = "L,L,o0"
};
cmd_parser = &file_io_cmd_desc;
}
break;
case 'g':