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Add remote TLS support.

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This commit is contained in:
Kevin Buettner 2005-04-15 19:58:59 +00:00
parent 9f872bbe2a
commit 3869131802
2 changed files with 93 additions and 0 deletions
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15
gdb/ChangeLog
View file

@ -1,3 +1,18 @@
2005-04-15 Kevin Buettner <kevinb@redhat.com>
* remote.c (remote_protocol_qGetTLSAddr): New static global variable.
(set_remote_protocol_qGetTLSAddr_packet_cmd)
(show_remote_protocol_qGetTLSAddr_packet_cmd)
(remote_get_thread_local_address): New functions.
(init_all_packet_configs): Initialize remote_protocol_qGetTLSAddr
variable.
(init_remote_ops): Initialize ``to_get_thread_local_address'' in
target vector.
(show_remote_cmd): Call show_remote_protocol_qGetTLS_Addr_packet_cmd().
(_initialize_remote): Register the following commands:
"set remote get-thread-local-storage-address-packet" and
"show remote get-thread-local-address-packet".
2005-04-15 Kevin Buettner <kevinb@redhat.com>
* remote.c (add_packet_config_cmd): Delete unused variables.

78
gdb/remote.c
View file

@ -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, _("\