diff options
Diffstat (limited to 'gdb/gdbserver/server.c')
| -rw-r--r-- | gdb/gdbserver/server.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/gdb/gdbserver/server.c b/gdb/gdbserver/server.c index 9e19739..ebfcca4 100644 --- a/gdb/gdbserver/server.c +++ b/gdb/gdbserver/server.c @@ -1118,6 +1118,56 @@ handle_qxfer_threads (const char *annex, return len; } +/* Handle qXfer:traceframe-info:read. */ + +static int +handle_qxfer_traceframe_info (const char *annex, + gdb_byte *readbuf, const gdb_byte *writebuf, + ULONGEST offset, LONGEST len) +{ + static char *result = 0; + static unsigned int result_length = 0; + + if (writebuf != NULL) + return -2; + + if (!target_running () || annex[0] != '\0' || current_traceframe == -1) + return -1; + + if (offset == 0) + { + struct buffer buffer; + + /* When asked for data at offset 0, generate everything and + store into 'result'. Successive reads will be served off + 'result'. */ + free (result); + + buffer_init (&buffer); + + traceframe_read_info (current_traceframe, &buffer); + + result = buffer_finish (&buffer); + result_length = strlen (result); + buffer_free (&buffer); + } + + if (offset >= result_length) + { + /* We're out of data. */ + free (result); + result = NULL; + result_length = 0; + return 0; + } + + if (len > result_length - offset) + len = result_length - offset; + + memcpy (readbuf, result + offset, len); + return len; +} + static const struct qxfer qxfer_packets[] = { { "auxv", handle_qxfer_auxv }, @@ -1128,6 +1178,7 @@ static const struct qxfer qxfer_packets[] = { "spu", handle_qxfer_spu }, { "statictrace", handle_qxfer_statictrace }, { "threads", handle_qxfer_threads }, + { "traceframe-info", handle_qxfer_traceframe_info }, }; static int @@ -1485,6 +1536,7 @@ handle_query (char *own_buf, int packet_len, int *new_packet_len_p) strcat (own_buf, ";FastTracepoints+"); strcat (own_buf, ";StaticTracepoints+"); strcat (own_buf, ";qXfer:statictrace:read+"); + strcat (own_buf, ";qXfer:traceframe-info:read+"); } return; |