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gdbstub: Add q-packet handling function

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Add `gdb_q_packet` function to handle proccessing of query packets. Also
add `gdb_qsupported` function to serve as a single place to process and
respond to `qSupported` packets.

Signed-off-by: Robert Zieba <robertzieba@google.com>
This commit is contained in:
Robert Zieba 2024-03-07 08:23:33 -07:00 committed by Fabio Baltieri
parent e410e2b740
commit 43cb0572e9
1 changed files with 29 additions and 0 deletions
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29
subsys/debug/gdbstub.c
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@ -585,6 +585,28 @@ static int gdb_send_exception(uint8_t *buf, size_t len, uint8_t exception)
return gdb_send_packet(buf, size);
}
static bool gdb_qsupported(uint8_t *buf, size_t len, enum gdb_loop_state *next_state)
{
size_t n = 0;
const char *c_buf = (const char *) buf;
if (strstr(buf, "qSupported") != c_buf) {
return false;
}
gdb_send_packet(buf, n);
return true;
}
static void gdb_q_packet(uint8_t *buf, size_t len, enum gdb_loop_state *next_state)
{
if (gdb_qsupported(buf, len, next_state)) {
return;
}
gdb_send_packet(NULL, 0);
}
/**
* Synchronously communicate with gdb on the host
*/
@ -809,6 +831,13 @@ int z_gdb_main_loop(struct gdb_ctx *ctx)
ctx->exception);
break;
/* Query packets*/
case 'q':
__fallthrough;
case 'Q':
gdb_q_packet(buf, sizeof(buf), &state);
break;
/*
* Not supported action
*/