/* Inferior process information for the remote server for GDB.
- Copyright (C) 2002, 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2002-2013 Free Software Foundation, Inc.
Contributed by MontaVista Software.
#include <stdlib.h>
#include "server.h"
-
-struct thread_info
-{
- struct inferior_list_entry entry;
- void *target_data;
- void *regcache_data;
- unsigned int gdb_id;
-};
+#include "gdbthread.h"
struct inferior_list all_processes;
struct inferior_list all_threads;
-struct inferior_list all_dlls;
-int dlls_changed;
struct thread_info *current_inferior;
-
-/* Oft used ptids */
-ptid_t null_ptid;
-ptid_t minus_one_ptid;
-
-/* Create a ptid given the necessary PID, LWP, and TID components. */
-
-ptid_t
-ptid_build (int pid, long lwp, long tid)
-{
- ptid_t ptid;
-
- ptid.pid = pid;
- ptid.lwp = lwp;
- ptid.tid = tid;
- return ptid;
-}
-
-/* Create a ptid from just a pid. */
-
-ptid_t
-pid_to_ptid (int pid)
-{
- return ptid_build (pid, 0, 0);
-}
-
-/* Fetch the pid (process id) component from a ptid. */
-
-int
-ptid_get_pid (ptid_t ptid)
-{
- return ptid.pid;
-}
-
-/* Fetch the lwp (lightweight process) component from a ptid. */
-
-long
-ptid_get_lwp (ptid_t ptid)
-{
- return ptid.lwp;
-}
-
-/* Fetch the tid (thread id) component from a ptid. */
-
-long
-ptid_get_tid (ptid_t ptid)
-{
- return ptid.tid;
-}
-
-/* ptid_equal() is used to test equality of two ptids. */
-
-int
-ptid_equal (ptid_t ptid1, ptid_t ptid2)
-{
- return (ptid1.pid == ptid2.pid
- && ptid1.lwp == ptid2.lwp
- && ptid1.tid == ptid2.tid);
-}
-
-/* Return true if this ptid represents a process. */
-
-int
-ptid_is_pid (ptid_t ptid)
-{
- if (ptid_equal (minus_one_ptid, ptid))
- return 0;
- if (ptid_equal (null_ptid, ptid))
- return 0;
-
- return (ptid_get_pid (ptid) != 0
- && ptid_get_lwp (ptid) == 0
- && ptid_get_tid (ptid) == 0);
-}
-
#define get_thread(inf) ((struct thread_info *)(inf))
-#define get_dll(inf) ((struct dll_info *)(inf))
void
add_inferior_to_list (struct inferior_list *list,
list->tail = new_inferior;
}
+/* Invoke ACTION for each inferior in LIST. */
+
void
for_each_inferior (struct inferior_list *list,
void (*action) (struct inferior_list_entry *))
memset (new_thread, 0, sizeof (*new_thread));
new_thread->entry.id = thread_id;
+ new_thread->last_resume_kind = resume_continue;
+ new_thread->last_status.kind = TARGET_WAITKIND_IGNORE;
add_inferior_to_list (&all_threads, & new_thread->entry);
}
struct thread_info *
-find_thread_pid (ptid_t ptid)
+find_thread_ptid (ptid_t ptid)
{
struct inferior_list_entry *inf = all_threads.head;
ptid_t
gdb_id_to_thread_id (ptid_t gdb_id)
{
- struct thread_info *thread = find_thread_pid (gdb_id);
+ struct thread_info *thread = find_thread_ptid (gdb_id);
return thread ? thread->entry.id : null_ptid;
}
void
remove_thread (struct thread_info *thread)
{
+ if (thread->btrace != NULL)
+ target_disable_btrace (thread->btrace);
+
remove_inferior (&all_threads, (struct inferior_list_entry *) thread);
free_one_thread (&thread->entry);
}
+/* Find the first inferior_list_entry E in LIST for which FUNC (E, ARG)
+ returns non-zero. If no entry is found then return NULL. */
+
struct inferior_list_entry *
find_inferior (struct inferior_list *list,
int (*func) (struct inferior_list_entry *, void *), void *arg)
inferior->regcache_data = data;
}
-static void
-free_one_dll (struct inferior_list_entry *inf)
-{
- struct dll_info *dll = get_dll (inf);
- if (dll->name != NULL)
- free (dll->name);
- free (dll);
-}
-
-/* Find a DLL with the same name and/or base address. A NULL name in
- the key is ignored; so is an all-ones base address. */
-
-static int
-match_dll (struct inferior_list_entry *inf, void *arg)
-{
- struct dll_info *iter = (void *) inf;
- struct dll_info *key = arg;
-
- if (key->base_addr != ~(CORE_ADDR) 0
- && iter->base_addr == key->base_addr)
- return 1;
- else if (key->name != NULL
- && iter->name != NULL
- && strcmp (key->name, iter->name) == 0)
- return 1;
-
- return 0;
-}
-
-/* Record a newly loaded DLL at BASE_ADDR. */
-
-void
-loaded_dll (const char *name, CORE_ADDR base_addr)
-{
- struct dll_info *new_dll = xmalloc (sizeof (*new_dll));
- memset (new_dll, 0, sizeof (*new_dll));
-
- new_dll->entry.id = minus_one_ptid;
-
- new_dll->name = xstrdup (name);
- new_dll->base_addr = base_addr;
-
- add_inferior_to_list (&all_dlls, &new_dll->entry);
- dlls_changed = 1;
-}
-
-/* Record that the DLL with NAME and BASE_ADDR has been unloaded. */
-
-void
-unloaded_dll (const char *name, CORE_ADDR base_addr)
-{
- struct dll_info *dll;
- struct dll_info key_dll;
-
- /* Be careful not to put the key DLL in any list. */
- key_dll.name = (char *) name;
- key_dll.base_addr = base_addr;
-
- dll = (void *) find_inferior (&all_dlls, match_dll, &key_dll);
- remove_inferior (&all_dlls, &dll->entry);
- free_one_dll (&dll->entry);
- dlls_changed = 1;
-}
-
#define clear_list(LIST) \
do { (LIST)->head = (LIST)->tail = NULL; } while (0)
clear_inferiors (void)
{
for_each_inferior (&all_threads, free_one_thread);
- for_each_inferior (&all_dlls, free_one_dll);
-
clear_list (&all_threads);
- clear_list (&all_dlls);
-
- current_inferior = NULL;
-}
-/* Two utility functions for a truly degenerate inferior_list: a simple
- PID listing. */
+ clear_dlls ();
-void
-add_pid_to_list (struct inferior_list *list, unsigned long pid)
-{
- struct inferior_list_entry *new_entry;
-
- new_entry = xmalloc (sizeof (struct inferior_list_entry));
- new_entry->id = pid_to_ptid (pid);
- add_inferior_to_list (list, new_entry);
-}
-
-int
-pull_pid_from_list (struct inferior_list *list, unsigned long pid)
-{
- struct inferior_list_entry *new_entry;
-
- new_entry = find_inferior_id (list, pid_to_ptid (pid));
- if (new_entry == NULL)
- return 0;
- else
- {
- remove_inferior (list, new_entry);
- free (new_entry);
- return 1;
- }
+ current_inferior = NULL;
}
struct process_info *
return process;
}
+/* Remove a process from the common process list and free the memory
+ allocated for it.
+ The caller is responsible for freeing private data first. */
+
void
remove_process (struct process_info *process)
{
clear_symbol_cache (&process->symbol_cache);
free_all_breakpoints (process);
remove_inferior (&all_processes, &process->head);
+ free (process);
}
struct process_info *
find_inferior_id (&all_processes, pid_to_ptid (pid));
}
-static struct process_info *
+/* Return non-zero if INF, a struct process_info, was started by us,
+ i.e. not attached to. */
+
+static int
+started_inferior_callback (struct inferior_list_entry *entry, void *args)
+{
+ struct process_info *process = (struct process_info *) entry;
+
+ return ! process->attached;
+}
+
+/* Return non-zero if there are any inferiors that we have created
+ (as opposed to attached-to). */
+
+int
+have_started_inferiors_p (void)
+{
+ return (find_inferior (&all_processes, started_inferior_callback, NULL)
+ != NULL);
+}
+
+/* Return non-zero if INF, a struct process_info, was attached to. */
+
+static int
+attached_inferior_callback (struct inferior_list_entry *entry, void *args)
+{
+ struct process_info *process = (struct process_info *) entry;
+
+ return process->attached;
+}
+
+/* Return non-zero if there are any inferiors that we have attached to. */
+
+int
+have_attached_inferiors_p (void)
+{
+ return (find_inferior (&all_processes, attached_inferior_callback, NULL)
+ != NULL);
+}
+
+struct process_info *
get_thread_process (struct thread_info *thread)
{
int pid = ptid_get_pid (thread->entry.id);
return get_thread_process (current_inferior);
}
-
-void
-initialize_inferiors (void)
-{
- null_ptid = ptid_build (0, 0, 0);
- minus_one_ptid = ptid_build (-1, 0, 0);
-}
projects / deliverable / binutils-gdb.git / blobdiff