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* win32-nat.c (DebugSetProcessKillOnExit): New static function

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pointer to Windows' DebugSetProcessKillOnExit() function.
        (DebugActiveProcessStop): Ditto for DebugActiveProcessStop().
        (has_detach_ability): New function.
        (child_attach): If system has detach ability, enable it.
        (child_detach): If system has detach ability, actually
        detach from process.
        Change tty output to Linux format.
This commit is contained in:
Corinna Vinschen 2001-10-26 09:29:31 +00:00
parent 560ba567a0
commit 02cc9f49ae
3 changed files with 115 additions and 8 deletions
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11
gdb/ChangeLog
View file

@ -1,3 +1,14 @@
2001-10-24 Corinna Vinschen <vinschen@redhat.com>
* win32-nat.c (DebugSetProcessKillOnExit): New static function
pointer to Windows' DebugSetProcessKillOnExit() function.
(DebugActiveProcessStop): Ditto for DebugActiveProcessStop().
(has_detach_ability): New function.
(child_attach): If system has detach ability, enable it.
(child_detach): If system has detach ability, actually
detach from process.
Change tty output to Linux format.
2001-10-23 Jim Blandy <jimb@redhat.com>
Isolate STABS readers' use of the `textlow' and `texthigh' fields

56
gdb/win32-nat.c
View file

@ -1022,8 +1022,36 @@ do_initial_child_stuff (DWORD pid)
return;
}
/* Attach to process PID, then initialize for debugging it. */
/* Since Windows XP, detaching from a process is supported by Windows.
The following code tries loading the appropriate functions dynamically.
If loading these functions succeeds use them to actually detach from
the inferior process, otherwise behave as usual, pretending that
detach has worked. */
static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL);
static BOOL WINAPI (*DebugActiveProcessStop)(DWORD);
static int
has_detach_ability ()
{
static HMODULE kernel32 = NULL;
if (!kernel32)
kernel32 = LoadLibrary ("kernel32.dll");
if (kernel32)
{
if (!DebugSetProcessKillOnExit)
DebugSetProcessKillOnExit = GetProcAddress (kernel32,
"DebugSetProcessKillOnExit");
if (!DebugActiveProcessStop)
DebugActiveProcessStop = GetProcAddress (kernel32,
"DebugActiveProcessStop");
if (DebugSetProcessKillOnExit && DebugActiveProcessStop)
return 1;
}
return 0;
}
/* Attach to process PID, then initialize for debugging it. */
static void
child_attach (char *args, int from_tty)
{
@ -1039,6 +1067,12 @@ child_attach (char *args, int from_tty)
if (!ok)
error ("Can't attach to process.");
if (has_detach_ability ())
{
attach_flag = 1;
DebugSetProcessKillOnExit (FALSE);
}
if (from_tty)
{
char *exec_file = (char *) get_exec_file (0);
@ -1060,13 +1094,27 @@ child_attach (char *args, int from_tty)
static void
child_detach (char *args ATTRIBUTE_UNUSED, int from_tty)
{
if (from_tty)
int detached = 1;
if (has_detach_ability ())
{
delete_command (NULL, 0);
child_continue (DBG_CONTINUE, -1);
if (!DebugActiveProcessStop (current_event.dwProcessId))
{
error ("Can't detach process %lu (error %lu)",
current_event.dwProcessId, GetLastError ());
detached = 0;
}
DebugSetProcessKillOnExit (FALSE);
}
if (detached && from_tty)
{
char *exec_file = get_exec_file (0);
if (exec_file == 0)
exec_file = "";
printf_unfiltered ("Detaching from program: %s %s\n", exec_file,
target_pid_to_str (inferior_ptid));
printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file,
current_event.dwProcessId);
gdb_flush (gdb_stdout);
}
inferior_ptid = null_ptid;

56
gdb/windows-nat.c
View file

@ -1022,8 +1022,36 @@ do_initial_child_stuff (DWORD pid)
return;
}
/* Attach to process PID, then initialize for debugging it. */
/* Since Windows XP, detaching from a process is supported by Windows.
The following code tries loading the appropriate functions dynamically.
If loading these functions succeeds use them to actually detach from
the inferior process, otherwise behave as usual, pretending that
detach has worked. */
static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL);
static BOOL WINAPI (*DebugActiveProcessStop)(DWORD);
static int
has_detach_ability ()
{
static HMODULE kernel32 = NULL;
if (!kernel32)
kernel32 = LoadLibrary ("kernel32.dll");
if (kernel32)
{
if (!DebugSetProcessKillOnExit)
DebugSetProcessKillOnExit = GetProcAddress (kernel32,
"DebugSetProcessKillOnExit");
if (!DebugActiveProcessStop)
DebugActiveProcessStop = GetProcAddress (kernel32,
"DebugActiveProcessStop");
if (DebugSetProcessKillOnExit && DebugActiveProcessStop)
return 1;
}
return 0;
}
/* Attach to process PID, then initialize for debugging it. */
static void
child_attach (char *args, int from_tty)
{
@ -1039,6 +1067,12 @@ child_attach (char *args, int from_tty)
if (!ok)
error ("Can't attach to process.");
if (has_detach_ability ())
{
attach_flag = 1;
DebugSetProcessKillOnExit (FALSE);
}
if (from_tty)
{
char *exec_file = (char *) get_exec_file (0);
@ -1060,13 +1094,27 @@ child_attach (char *args, int from_tty)
static void
child_detach (char *args ATTRIBUTE_UNUSED, int from_tty)
{
if (from_tty)
int detached = 1;
if (has_detach_ability ())
{
delete_command (NULL, 0);
child_continue (DBG_CONTINUE, -1);
if (!DebugActiveProcessStop (current_event.dwProcessId))
{
error ("Can't detach process %lu (error %lu)",
current_event.dwProcessId, GetLastError ());
detached = 0;
}
DebugSetProcessKillOnExit (FALSE);
}
if (detached && from_tty)
{
char *exec_file = get_exec_file (0);
if (exec_file == 0)
exec_file = "";
printf_unfiltered ("Detaching from program: %s %s\n", exec_file,
target_pid_to_str (inferior_ptid));
printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file,
current_event.dwProcessId);
gdb_flush (gdb_stdout);
}
inferior_ptid = null_ptid;