diff options
Diffstat (limited to 'gdb/remote.c')
| -rw-r--r-- | gdb/remote.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gdb/remote.c b/gdb/remote.c index 89d491e..f348536 100644 --- a/gdb/remote.c +++ b/gdb/remote.c @@ -1238,6 +1238,7 @@ enum { PACKET_vFile_pwrite, PACKET_vFile_close, PACKET_vFile_unlink, + PACKET_vFile_readlink, PACKET_qXfer_auxv, PACKET_qXfer_features, PACKET_qXfer_libraries, @@ -9358,6 +9359,44 @@ remote_hostio_unlink (const char *filename, int *remote_errno) remote_errno, NULL, NULL); } +/* Read value of symbolic link FILENAME on the remote target. Return + a null-terminated string allocated via xmalloc, or NULL if an error + occurs (and set *REMOTE_ERRNO). */ + +static char * +remote_hostio_readlink (const char *filename, int *remote_errno) +{ + struct remote_state *rs = get_remote_state (); + char *p = rs->buf; + char *attachment; + int left = get_remote_packet_size (); + int len, attachment_len; + int read_len; + char *ret; + + remote_buffer_add_string (&p, &left, "vFile:readlink:"); + + remote_buffer_add_bytes (&p, &left, (const gdb_byte *) filename, + strlen (filename)); + + len = remote_hostio_send_command (p - rs->buf, PACKET_vFile_readlink, + remote_errno, &attachment, + &attachment_len); + + if (len < 0) + return NULL; + + ret = xmalloc (len + 1); + + read_len = remote_unescape_input (attachment, attachment_len, + ret, len); + if (read_len != len) + error (_("Readlink returned %d, but %d bytes."), len, read_len); + + ret[len] = '\0'; + return ret; +} + static int remote_fileio_errno_to_host (int errnum) { @@ -10679,6 +10718,7 @@ Specify the serial device it is connected to\n\ remote_ops.to_fileio_pread = remote_hostio_pread; remote_ops.to_fileio_close = remote_hostio_close; remote_ops.to_fileio_unlink = remote_hostio_unlink; + remote_ops.to_fileio_readlink = remote_hostio_readlink; remote_ops.to_supports_enable_disable_tracepoint = remote_supports_enable_disable_tracepoint; remote_ops.to_supports_string_tracing = remote_supports_string_tracing; remote_ops.to_trace_init = remote_trace_init; @@ -11177,6 +11217,9 @@ Show the maximum size of the address (in bits) in a memory packet."), NULL, add_packet_config_cmd (&remote_protocol_packets[PACKET_vFile_unlink], "vFile:unlink", "hostio-unlink", 0); + add_packet_config_cmd (&remote_protocol_packets[PACKET_vFile_readlink], + "vFile:readlink", "hostio-readlink", 0); + add_packet_config_cmd (&remote_protocol_packets[PACKET_vAttach], "vAttach", "attach", 0); |