* Makefile.in: Remove some obsolete stuff.

* dcrt0.cc (dll_crt0_1): Call signal_fixup_after_exec where appropriate.  Set
myself->uid from parent version.  Just use ThreadItem Init method.  Close or
store hexec_proc as appropriate.
(_dll_crt0): Store user_data->forkee here so that proper tests can be made
subsequently.
(do_exit): Remove hExeced stuff.
* environ.cc (environ_init): Accept environ count as well as environ pointer.
* environ.h: Reflect above change.
* pinfo.cc (pinfo_init): Ditto.  Accept environ count.
(fixup_in_spawned_child): Remove.
* spawn.cc (spawn_guts): Move signal code to dll_crt0_1.  Don't suspend execing
process since it is no longer necessary.  Store envc.
* exceptions.cc (signal_fixup_after_exec): New function.
(call_handler): Remove hExeced test.
* child_info.h (cygheap_exec_info): Store envc as well as envp.
(child_info_spawn): Store hexec_proc so that it can be closed in child.
* path.cc (normalize_posix_path): Avoid intermediate use of temporary cwd buf.
(normalize_win32_path): Ditto.
(cwdstuff::get_initial): Always set lock.
* sigproc.h: Remove hExeced.
* strace.cc (strace::vsprntf): Modify to accomodate for lack of hExeced.
* thread.cc (MTinterface::Init): Merge Init1 and ClearReent into this method.
(MTinterface::Init1): Eliminate.
(MTinterface::ClearReent): Eliminate.
* thread.h: Reflect above changes.
* include/sys/strace.h (strace): Make microseconds() public.  Make various
functions 'regparm', throughout.
* pinfo.h (_pinfo): Inline simple signal manipulation functions.  Requires
inclusion of thread.h which was removed from .cc files, where appropriate.
throughout.
* pinfo.cc: Eliminate signal manipulation functions.
(_pinfo::exit): Calculate total rusage for exiting process here.
* cygheap.cc (size2bucket): Eliminate.
(init_buckets): Ditto.
(_cmalloc): Calculate size and bits in a loop rather than going through a
function call.
(_crealloc): Use stored array index to calculate allocated size.
* spawn.cc (spawn_guts): Use _pinfo exit method to exit, calculating cpu usage.

winsup/cygwin/pinfo.h

@@ -20,8 +20,8 @@ enum
 
 #define PSIZE 1024
 
-class ThreadItem;
 #include <sys/resource.h>
+#include "thread.h"
 
 class _pinfo
 {
@@ -104,20 +104,41 @@ public:
   /* Non-zero if process was stopped by a signal. */
   char stopsig;
 
-  struct sigaction& getsig (int);
-  void copysigs (_pinfo* );
-  sigset_t& getsigmask ();
-  void setsigmask (sigset_t);
-  LONG* getsigtodo (int);
-  HANDLE getthread2signal ();
-  void setthread2signal (void *);
-  void exit (UINT n) __attribute__ ((noreturn));
+  void exit (UINT n, bool norecord = 0) __attribute__ ((noreturn, regparm(2)));
+
+  inline struct sigaction& getsig (int sig)
+  {
+    return thread2signal ? thread2signal->sigs[sig] : sigs[sig];
+  }
+
+  inline void copysigs (_pinfo *p) {sigs = p->sigs;}
+
+  inline sigset_t& getsigmask ()
+  {
+    return thread2signal ? *thread2signal->sigmask : sig_mask;
+  }
+
+  inline void setsigmask (sigset_t mask)
+  {
+    if (thread2signal)
+      *(thread2signal->sigmask) = mask;
+    sig_mask = mask;
+  }
+
+  inline LONG* getsigtodo (int sig) {return _sigtodo + __SIGOFFSET + sig;}
+
+  inline HANDLE getthread2signal ()
+  {
+    return thread2signal ? thread2signal->win32_obj_id : hMainThread;
+  }
+
+  inline void setthread2signal (void *thr) {thread2signal = (ThreadItem *) thr;}
 
 private:
   struct sigaction sigs[NSIG];
   sigset_t sig_mask;		/* one set for everything to ignore. */
   LONG _sigtodo[NSIG + __SIGOFFSET];
-  ThreadItem* thread2signal;  // NULL means means thread any other means a pthread
+  ThreadItem *thread2signal;  // NULL means means thread any other means a pthread
 };
 
 class pinfo
@@ -172,7 +193,7 @@ cygwin_pid (pid_t pid)
   return (pid_t) (os_being_run == winNT) ? pid : -(int) pid;
 }
 
-void __stdcall pinfo_init (char **);
+void __stdcall pinfo_init (char **, int);
 void __stdcall set_myself (pid_t pid, HANDLE h = NULL);
 extern pinfo myself;
 
@@ -181,7 +202,7 @@ extern "C" int _spawnve (HANDLE hToken, int mode, const char *path,
 			 const char *const *argv, const char *const *envp);
 
 extern void __stdcall pinfo_fixup_after_fork ();
-extern void __stdcall pinfo_fixup_in_spawned_child (HANDLE hchild);
+extern HANDLE hexec_proc;
 
 /* For mmaps across fork(). */
 int __stdcall recreate_mmaps_after_fork (void *);