extern void linuxthreads_new_objfile (struct objfile *objfile);
/* Method to print a human-readable thread description */
-extern char *linuxthreads_pid_to_str (int pid);
+extern char *linuxthreads_pid_to_str (ptid_t ptid);
extern int linuxthreads_prepare_to_proceed (int step);
#define PREPARE_TO_PROCEED(select_it) linuxthreads_prepare_to_proceed (1)
/* Macros to extract process id and thread id from a composite pid/tid.
Allocate lower 19 bits for process id, next 12 bits for thread id, and
one bit for a flag to indicate a user thread vs. a kernel thread. */
-#define PIDGET(PID) (((PID) & 0xffff))
+#define PIDGET0(PID) (((PID) & 0xffff))
+#define PIDGET(PID) ((PIDGET0 (PID) == 0xffff) ? -1 : PIDGET0 (PID))
#define TIDGET(PID) (((PID) & 0x7fffffff) >> 16)
#define MERGEPID(PID, TID) (((PID) & 0xffff) | ((TID) << 16))