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Display names of remote threads

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This patch adds support for thread names in the remote protocol, and
updates gdb/gdbserver to use it.  The information is added to the XML
description sent in response to the qXfer:threads:read packet.

gdb/ChangeLog:

	* linux-nat.c (linux_nat_thread_name): Replace implementation by call
	to linux_proc_tid_get_name.
	* nat/linux-procfs.c (linux_proc_tid_get_name): New function,
	implementation inspired by linux_nat_thread_name.
	* nat/linux-procfs.h (linux_proc_tid_get_name): New declaration.
	* remote.c (struct private_thread_info) <name>: New field.
	(free_private_thread_info): Free name field.
	(remote_thread_name): New function.
	(thread_item_t) <name>: New field.
	(clear_threads_listing_context): Free name field.
	(start_thread): Get name xml attribute.
	(thread_attributes): Add "name" attribute.
	(remote_update_thread_list): Copy name field.
	(init_remote_ops): Assign remote_thread_name callback.
	* target.h (target_thread_name): Update comment.
	* NEWS: Mention remote thread name support.

gdb/gdbserver/ChangeLog:

	* linux-low.c (linux_target_ops): Use linux_proc_tid_get_name.
	* server.c (handle_qxfer_threads_worker): Refactor to include thread
	name in reply.
	* target.h (struct target_ops) <thread_name>: New field.
	(target_thread_name): New macro.

gdb/doc/ChangeLog:

	* gdb.texinfo (Thread List Format): Mention thread names.
This commit is contained in:
Simon Marchi
2015-11-26 09:49:04 -05:00
parent 73ede76585
commit 79efa585c5
13 changed files with 142 additions and 46 deletions
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8
gdb/gdbserver/target.h
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@@ -453,6 +453,10 @@ struct target_ops
specific meaning like the Z0 kind parameter.
SIZE is set to the software breakpoint's length in memory. */
const gdb_byte *(*sw_breakpoint_from_kind) (int kind, int *size);
/* Return the thread's name, or NULL if the target is unable to determine it.
The returned value must not be freed by the caller. */
const char *(*thread_name) (ptid_t thread);
};
extern struct target_ops *the_target;
@@ -663,6 +667,10 @@ ptid_t mywait (ptid_t ptid, struct target_waitstatus *ourstatus, int options,
(the_target->core_of_thread ? (*the_target->core_of_thread) (ptid) \
: -1)
#define target_thread_name(ptid) \
(the_target->thread_name ? (*the_target->thread_name) (ptid) \
: NULL)
int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len);
int write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,