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gdbserver: turn target op 'pid_to_exec_file' into a method 

gdbserver/ChangeLog:
2020-02-20  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>

	Turn process_stratum_target's pid_to_exec_file op into a method
	of process_target.

	* target.h (struct process_stratum_target): Remove the target op.
	(class process_target): Add the target op.  Also add
	'supports_pid_to_exec_file'.
	* target.cc (process_target::pid_to_exec_file): Define.
	(process_target::supports_pid_to_exec_file): Define.

	Update the derived classes and callers below.

	* server.cc (handle_qxfer_exec_file): Update.
	(handle_query): Update.
	* linux-low.cc (linux_target_ops): Update.
	(linux_process_target::supports_pid_to_exec_file): Define.
	(linux_process_target::pid_to_exec_file): Define.
	* linux-low.h (class linux_process_target): Update.
	* lynx-low.cc (lynx_target_ops): Update.
	* nto-low.cc (nto_target_ops): Update.
	* win32-low.cc (win32_target_ops): Update.
This commit is contained in:
Tankut Baris Aktemur 2020-02-17 16:12:02 +01:00
parent 2526e0cd95
commit 8247b8236b
9 changed files with 65 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
gdbserver/ChangeLog
View File

@ -1,3 +1,26 @@
2020-02-20 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
Turn process_stratum_target's pid_to_exec_file op into a method
of process_target.
* target.h (struct process_stratum_target): Remove the target op.
(class process_target): Add the target op. Also add
'supports_pid_to_exec_file'.
* target.cc (process_target::pid_to_exec_file): Define.
(process_target::supports_pid_to_exec_file): Define.
Update the derived classes and callers below.
* server.cc (handle_qxfer_exec_file): Update.
(handle_query): Update.
* linux-low.cc (linux_target_ops): Update.
(linux_process_target::supports_pid_to_exec_file): Define.
(linux_process_target::pid_to_exec_file): Define.
* linux-low.h (class linux_process_target): Update.
* lynx-low.cc (lynx_target_ops): Update.
* nto-low.cc (nto_target_ops): Update.
* win32-low.cc (win32_target_ops): Update.
2020-02-20 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
Turn process_stratum_target's supports_range_stepping op into a

13
gdbserver/linux-low.cc
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@ -6441,6 +6441,18 @@ linux_process_target::supports_range_stepping ()
return (*the_low_target.supports_range_stepping) ();
}
bool
linux_process_target::supports_pid_to_exec_file ()
{
return true;
}
char *
linux_process_target::pid_to_exec_file (int pid)
{
return linux_proc_pid_to_exec_file (pid);
}
#if defined PT_GETDSBT || defined PTRACE_GETFDPIC
struct target_loadseg
{
@ -7471,7 +7483,6 @@ linux_get_hwcap2 (int wordsize)
static linux_process_target the_linux_target;
static process_stratum_target linux_target_ops = {
linux_proc_pid_to_exec_file,
linux_mntns_open_cloexec,
linux_mntns_unlink,
linux_mntns_readlink,

4
gdbserver/linux-low.h
View File

@ -448,6 +448,10 @@ public:
#endif
bool supports_range_stepping () override;
bool supports_pid_to_exec_file () override;
char *pid_to_exec_file (int pid) override;
};
#define get_thread_lwp(thr) ((struct lwp_info *) (thread_target_data (thr)))

1
gdbserver/lynx-low.cc
View File

@ -735,7 +735,6 @@ static lynx_process_target the_lynx_target;
/* The LynxOS target_ops vector. */
static process_stratum_target lynx_target_ops = {
NULL, /* pid_to_exec_file */
NULL, /* multifs_open */
NULL, /* multifs_unlink */
NULL, /* multifs_readlink */

1
gdbserver/nto-low.cc
View File

@ -947,7 +947,6 @@ nto_sw_breakpoint_from_kind (int kind, int *size)
static nto_process_target the_nto_target;
static process_stratum_target nto_target_ops = {
NULL, /* pid_to_exec_file */
NULL, /* multifs_open */
NULL, /* multifs_unlink */
NULL, /* multifs_readlink */

6
gdbserver/server.cc
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@ -1462,7 +1462,7 @@ handle_qxfer_exec_file (const char *annex,
ULONGEST pid;
int total_len;
if (the_target->pid_to_exec_file == NULL || writebuf != NULL)
if (!the_target->pt->supports_pid_to_exec_file () || writebuf != NULL)
return -2;
if (annex[0] == '\0')
@ -1482,7 +1482,7 @@ handle_qxfer_exec_file (const char *annex,
if (pid <= 0)
return -1;
file = (*the_target->pid_to_exec_file) (pid);
file = the_target->pt->pid_to_exec_file (pid);
if (file == NULL)
return -1;
@ -2452,7 +2452,7 @@ handle_query (char *own_buf, int packet_len, int *new_packet_len_p)
if (target_supports_stopped_by_hw_breakpoint ())
strcat (own_buf, ";hwbreak+");
if (the_target->pid_to_exec_file != NULL)
if (the_target->pt->supports_pid_to_exec_file ())
strcat (own_buf, ";qXfer:exec-file:read+");
strcat (own_buf, ";vContSupported+");

12
gdbserver/target.cc
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@ -759,3 +759,15 @@ process_target::supports_range_stepping ()
{
return false;
}
bool
process_target::supports_pid_to_exec_file ()
{
return false;
}
char *
process_target::pid_to_exec_file (int pid)
{
gdb_assert_not_reached ("target op pid_to_exec_file not supported");
}

19
gdbserver/target.h
View File

@ -70,14 +70,6 @@ class process_target;
shared code. */
struct process_stratum_target
{
/* Return the full absolute name of the executable file that was
run to create the process PID. If the executable file cannot
be determined, NULL is returned. Otherwise, a pointer to a
character string containing the pathname is returned. This
string should be copied into a buffer by the client if the string
will not be immediately used, or if it must persist. */
char *(*pid_to_exec_file) (int pid);
/* Multiple-filesystem-aware open. Like open(2), but operating in
the filesystem as it appears to process PID. Systems where all
processes share a common filesystem should set this to NULL.
@ -498,6 +490,17 @@ public:
/* Return true if target supports range stepping. */
virtual bool supports_range_stepping ();
/* Return true if the pid_to_exec_file op is supported. */
virtual bool supports_pid_to_exec_file ();
/* Return the full absolute name of the executable file that was
run to create the process PID. If the executable file cannot
be determined, NULL is returned. Otherwise, a pointer to a
character string containing the pathname is returned. This
string should be copied into a buffer by the client if the string
will not be immediately used, or if it must persist. */
virtual char *pid_to_exec_file (int pid);
};
extern process_stratum_target *the_target;

1
gdbserver/win32-low.cc
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@ -1858,7 +1858,6 @@ win32_sw_breakpoint_from_kind (int kind, int *size)
static win32_process_target the_win32_target;
static process_stratum_target win32_target_ops = {
NULL, /* pid_to_exec_file */
NULL, /* multifs_open */
NULL, /* multifs_unlink */
NULL, /* multifs_readlink */