diff options
Diffstat (limited to 'gdb/remote.c')
| -rw-r--r-- | gdb/remote.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/gdb/remote.c b/gdb/remote.c index 95f94a0..99b6421 100644 --- a/gdb/remote.c +++ b/gdb/remote.c @@ -967,6 +967,24 @@ show_remote_protocol_qPart_auxv_packet_cmd (struct ui_file *file, int from_tty, show_packet_config_cmd (&remote_protocol_qPart_auxv); } +/* Should we try the 'qGetTLSAddr' (Get Thread Local Storage Address) request? */ +static struct packet_config remote_protocol_qGetTLSAddr; + +static void +set_remote_protocol_qGetTLSAddr_packet_cmd (char *args, int from_tty, + struct cmd_list_element *c) +{ + update_packet_config (&remote_protocol_qGetTLSAddr); +} + +static void +show_remote_protocol_qGetTLSAddr_packet_cmd (struct ui_file *file, int from_tty, + struct cmd_list_element *c, + const char *value) +{ + show_packet_config_cmd (&remote_protocol_qGetTLSAddr); +} + static struct packet_config remote_protocol_p; static void @@ -2095,6 +2113,7 @@ init_all_packet_configs (void) downloading. */ update_packet_config (&remote_protocol_binary_download); update_packet_config (&remote_protocol_qPart_auxv); + update_packet_config (&remote_protocol_qGetTLSAddr); } /* Symbol look-up. */ @@ -5314,6 +5333,56 @@ remote_pid_to_str (ptid_t ptid) return buf; } +/* Get the address of the thread local variable in OBJFILE which is + stored at OFFSET within the thread local storage for thread PTID. */ + +static CORE_ADDR +remote_get_thread_local_address (ptid_t ptid, CORE_ADDR lm, CORE_ADDR offset) +{ + if (remote_protocol_qGetTLSAddr.support != PACKET_DISABLE) + { + struct remote_state *rs = get_remote_state (); + char *buf = alloca (rs->remote_packet_size); + char *p = buf; + + strcpy (p, "qGetTLSAddr:"); + p += strlen (p); + p += hexnumstr (p, PIDGET (ptid)); + *p++ = ','; + p += hexnumstr (p, offset); + *p++ = ','; + p += hexnumstr (p, lm); + *p++ = '\0'; + + putpkt (buf); + getpkt (buf, rs->remote_packet_size, 0); + if (packet_ok (buf, &remote_protocol_qGetTLSAddr) == PACKET_OK) + { + ULONGEST result; + + unpack_varlen_hex (buf, &result); + return result; + } + else + { + struct exception e + = { RETURN_ERROR, TLS_GENERIC_ERROR, + "Remote target failed to process qGetTLSAddr request" }; + throw_exception (e); + + } + } + else + { + struct exception e + = { RETURN_ERROR, TLS_GENERIC_ERROR, + "TLS not supported or disabled on this target" }; + throw_exception (e); + } + /* Not reached. */ + return 0; +} + static void init_remote_ops (void) { @@ -5353,6 +5422,7 @@ Specify the serial device it is connected to\n\ remote_ops.to_stop = remote_stop; remote_ops.to_xfer_partial = remote_xfer_partial; remote_ops.to_rcmd = remote_rcmd; + remote_ops.to_get_thread_local_address = remote_get_thread_local_address; remote_ops.to_stratum = process_stratum; remote_ops.to_has_all_memory = 1; remote_ops.to_has_memory = 1; @@ -5528,6 +5598,7 @@ show_remote_cmd (char *args, int from_tty) show_remote_protocol_vcont_packet_cmd (gdb_stdout, from_tty, NULL, NULL); show_remote_protocol_binary_download_cmd (gdb_stdout, from_tty, NULL, NULL); show_remote_protocol_qPart_auxv_packet_cmd (gdb_stdout, from_tty, NULL, NULL); + show_remote_protocol_qGetTLSAddr_packet_cmd (gdb_stdout, from_tty, NULL, NULL); } static void @@ -5758,6 +5829,13 @@ Show the maximum size of the address (in bits) in a memory packet."), NULL, &remote_set_cmdlist, &remote_show_cmdlist, 0); + add_packet_config_cmd (&remote_protocol_qGetTLSAddr, + "qGetTLSAddr", "get-thread-local-storage-address", + set_remote_protocol_qGetTLSAddr_packet_cmd, + show_remote_protocol_qGetTLSAddr_packet_cmd, + &remote_set_cmdlist, &remote_show_cmdlist, + 0); + /* Keep the old ``set remote Z-packet ...'' working. */ add_setshow_auto_boolean_cmd ("Z-packet", class_obscure, &remote_Z_packet_detect, _("\ |