* 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.

33 files changed, 322 insertions, 431 deletions

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index bdc040099..695ada4a9 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,49 @@
+Mon Oct 16 18:37:22 2000  Christopher Faylor <cgf@cygnus.com>
+
+	* 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.
+
+Sun Oct 15 21:54:52 2000  Christopher Faylor <cgf@cygnus.com>
+
+	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.
+
 Sat Oct 14 21:24:16 2000  Christopher Faylor <cgf@cygnus.com>
 
 	* exceptions.cc (set_console_handler): Don't allocate
diff --git a/winsup/cygwin/Makefile.in b/winsup/cygwin/Makefile.in
index a5a780e24..2d2f4083c 100644
--- a/winsup/cygwin/Makefile.in
+++ b/winsup/cygwin/Makefile.in
@@ -51,7 +51,7 @@ CC:=@CC@
 # FIXME: Which is it, CC or CC_FOR_TARGET?
 CC_FOR_TARGET:=$(CC)
 CFLAGS:=@CFLAGS@
-CFLAGS+=-MD
+CFLAGS+=-MD -fbuiltin
 CXXFLAGS:=@CXXFLAGS@
 
 # For linking mount, etc. crt0.o isn't accessable in a fresh build.
@@ -84,11 +84,6 @@ RUNTEST = `if [ -f $${srcdir}/../dejagnu/runtest ] ; then \
 	    else echo runtest; fi`
 RUNTESTFLAGS =
 
-ifdef MT_SAFE
-MT_SAFE_HEADERS:=thread.h
-MT_SAFE_OBJECTS:=pthread.o thread.o
-endif
-
 # Parameters used in building the cygwin.dll.
 # We build as new-cygwin.dll and rename at install time to overcome
 # native rebuilding issues (we don't want the build tools to see a partially
@@ -123,11 +118,11 @@ DLL_OFILES:=assert.o cygheap.o dcrt0.o debug.o delqueue.o dir.o dlfcn.o \
 	fhandler_random.o fhandler_raw.o fhandler_serial.o fhandler_tape.o \
 	fhandler_termios.o fhandler_tty.o fhandler_windows.o fhandler_zero.o \
 	fork.o glob.o grp.o heap.o init.o ioctl.o localtime.o malloc.o mmap.o \
-	net.o ntea.o passwd.o path.o pinfo.o pipe.o poll.o regexp.o regerror.o \
-	regsub.o registry.o resource.o scandir.o security.o select.o shared.o \
-	signal.o sigproc.o smallprint.o spawn.o strace.o strsep.o sync.o \
-	syscalls.o sysconf.o syslog.o termios.o times.o tty.o uinfo.o uname.o \
-	wait.o window.o \
+	net.o ntea.o passwd.o path.o pinfo.o pipe.o poll.o pthread.o regexp.o \
+	regerror.o regsub.o registry.o resource.o scandir.o security.o select.o \
+	shared.o signal.o sigproc.o smallprint.o spawn.o strace.o strsep.o \
+	sync.o syscalls.o sysconf.o syslog.o termios.o thread.o times.o tty.o \
+	uinfo.o uname.o wait.o window.o \
 	$(EXTRA_DLL_OFILES) $(EXTRA_OFILES) $(MT_SAFE_OBJECTS)
 
 GMON_OFILES:= gmon.o mcount.o profil.o
@@ -219,15 +214,6 @@ Makefile: cygwin.din
 $(DEF_FILE): cygwin.din config.status
 	$(SHELL) config.status
 
-# .h file dependencies
-# This may be overkill, but it's better than the previous situation.
-# As files/dependencies are added and removed from Cygwin, please keep
-# this list up to date.
-
-WINSUP_H:=winsup.h fhandler.h path.h shared.h \
-	  sigproc.h include/cygwin/version.h \
-	  $(MT_SAFE_HEADERS)
-
 winsup.h: config.h
 
 ifneq (,${wildcard *.d})
diff --git a/winsup/cygwin/child_info.h b/winsup/cygwin/child_info.h
index b3018c67b..725833050 100644
--- a/winsup/cygwin/child_info.h
+++ b/winsup/cygwin/child_info.h
@@ -60,12 +60,14 @@ class fhandler_base;
 class cygheap_exec_info
 {
 public:
+  uid_t uid;
   char *old_title;
   fhandler_base **fds;
   size_t nfds;
   int argc;
   char **argv;
-  char **environ;
+  int envc;
+  char **envp;
   HANDLE myself_pinfo;
   char *cwd_posix;
   char *cwd_win32;
@@ -76,6 +78,7 @@ class child_info_spawn: public child_info
 {
 public:
   cygheap_exec_info *moreinfo;
+  HANDLE hexec_proc;
 
   child_info_spawn (): moreinfo (NULL) {}
   ~child_info_spawn ()
@@ -90,11 +93,11 @@ public:
 	  cfree (moreinfo->cwd_posix);
 	if (moreinfo->cwd_win32)
 	  cfree (moreinfo->cwd_win32);
-	if (moreinfo->environ)
+	if (moreinfo->envp)
 	  {
-	    for (char **e = moreinfo->environ; *e; e++)
+	    for (char **e = moreinfo->envp; *e; e++)
 	      cfree (*e);
-	    cfree (moreinfo->environ);
+	    cfree (moreinfo->envp);
 	  }
 	CloseHandle (moreinfo->myself_pinfo);
 	cfree (moreinfo);
diff --git a/winsup/cygwin/cygerrno.h b/winsup/cygwin/cygerrno.h
index c83120095..dd40819b9 100644
--- a/winsup/cygwin/cygerrno.h
+++ b/winsup/cygwin/cygerrno.h
@@ -8,9 +8,9 @@ This software is a copyrighted work licensed under the terms of the
 Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
 details. */
 
-void __stdcall seterrno_from_win_error (const char *file, int line, DWORD code);
-void __stdcall seterrno (const char *, int line);
-int __stdcall geterrno_from_win_error (DWORD code, int deferrno);
+void __stdcall seterrno_from_win_error (const char *file, int line, DWORD code) __attribute__ ((regparm(3)));
+void __stdcall seterrno (const char *, int line) __attribute__ ((regparm(2)));
+int __stdcall geterrno_from_win_error (DWORD code, int deferrno) __attribute__ ((regparm(2)));
 
 #define __seterrno() seterrno (__FILE__, __LINE__)
 #define __seterrno_from_win_error(val) seterrno_from_win_error (__FILE__, __LINE__, val)
diff --git a/winsup/cygwin/cygheap.cc b/winsup/cygwin/cygheap.cc
index 21bde12e1..e583c1efc 100644
--- a/winsup/cygwin/cygheap.cc
+++ b/winsup/cygwin/cygheap.cc
@@ -70,35 +70,6 @@ _csbrk (int sbs)
 
 #define NBUCKETS 32
 char *buckets[NBUCKETS] = {0};
-int bucket2size[NBUCKETS] = {0};
-
-static inline int
-size2bucket (int size)
-{
-  int rv = 0x1f;
-  int bit = ~0x10;
-  int i;
-
-  if (size < 4)
-    size = 4;
-  size = (size + 3) & ~3;
-
-  for (i = 0; i < 5; i++)
-    {
-      if (bucket2size[rv & bit] >= size)
-	rv &= bit;
-      bit >>= 1;
-    }
-  return rv;
-}
-
-static inline void
-init_buckets ()
-{
-  unsigned b;
-  for (b = 0; b < NBUCKETS; b++)
-    bucket2size[b] = (1 << b);
-}
 
 struct _cmalloc_entry
 {
@@ -116,16 +87,19 @@ struct _cmalloc_entry
 #define to_cmalloc(s) ((_cmalloc_entry *) (((char *) (s)) - (int) (N0->data)))
 #define cygheap_chain ((_cmalloc_entry **)cygheap)
 
+static void *_cmalloc (int size) __attribute ((regparm(1)));
+static void *__stdcall _crealloc (void *ptr, int size) __attribute ((regparm(2)));
+
 static void *__stdcall
 _cmalloc (int size)
 {
   _cmalloc_entry *rvc;
-  int b;
+  int b, sz;
 
-  if (bucket2size[0] == 0)
-    init_buckets ();
+  /* Calculate "bit bucket" and size as a power of two. */
+  for (b = 3, sz = 8; sz && sz < (size + 4); b++, sz <<= 1)
+    continue;
 
-  b = size2bucket (size);
   cygheap_protect->acquire ();
   if (buckets[b])
     {
@@ -135,7 +109,7 @@ _cmalloc (int size)
     }
   else
     {
-      size = bucket2size[b] + sizeof (_cmalloc_entry);
+      size = sz + sizeof (_cmalloc_entry);
       rvc = (_cmalloc_entry *) _csbrk (size);
 
       rvc->b = b;
@@ -165,7 +139,7 @@ _crealloc (void *ptr, int size)
     newptr = _cmalloc (size);
   else
     {
-      int oldsize = bucket2size[to_cmalloc (ptr)->b];
+      int oldsize = 1 << to_cmalloc (ptr)->b;
       if (size <= oldsize)
 	return ptr;
       newptr = _cmalloc (size);
@@ -228,7 +202,7 @@ cygheap_fixup_in_child (HANDLE parent, bool execed)
     }
 }
 
-static void *__stdcall
+inline static void *
 creturn (cygheap_types x, cygheap_entry * c, int len)
 {
   if (!c)
diff --git a/winsup/cygwin/cygheap.h b/winsup/cygwin/cygheap.h
index fc335c231..425185c6a 100644
--- a/winsup/cygwin/cygheap.h
+++ b/winsup/cygwin/cygheap.h
@@ -32,12 +32,12 @@ extern HANDLE cygheap_max;
 #define incygheap(s) (cygheap && ((char *) (s) >= (char *) cygheap) && ((char *) (s) <= ((char *) cygheap_max)))
 
 extern "C" {
-void __stdcall cfree (void *);
+void __stdcall cfree (void *) __attribute__ ((regparm(1)));
 void __stdcall cygheap_fixup_in_child (HANDLE, bool);
-void *__stdcall cmalloc (cygheap_types, DWORD);
-void *__stdcall crealloc (void *, DWORD);
-void *__stdcall ccalloc (cygheap_types, DWORD, DWORD);
-char *__stdcall cstrdup (const char *);
-char *__stdcall cstrdup1 (const char *);
+void *__stdcall cmalloc (cygheap_types, DWORD) __attribute__ ((regparm(2)));
+void *__stdcall crealloc (void *, DWORD) __attribute__ ((regparm(2)));
+void *__stdcall ccalloc (cygheap_types, DWORD, DWORD) __attribute__ ((regparm(3)));
+char *__stdcall cstrdup (const char *) __attribute__ ((regparm(1)));
+char *__stdcall cstrdup1 (const char *) __attribute__ ((regparm(1)));
 void __stdcall cygheap_init ();
 }
diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc
index 5adf59478..117cb75c6 100644
--- a/winsup/cygwin/dcrt0.cc
+++ b/winsup/cygwin/dcrt0.cc
@@ -15,6 +15,7 @@ details. */
 #include "exceptions.h"
 #include "autoload.h"
 #include <ctype.h>
+#include <limits.h>
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
@@ -27,7 +28,6 @@ details. */
 #include "perthread.h"
 #include "path.h"
 #include "dtable.h"
-#include "thread.h"
 #include "shared_info.h"
 #include "cygwin_version.h"
 #include "perprocess.h"
@@ -650,7 +650,7 @@ dll_crt0_1 ()
   _impure_ptr = &reent_data;
 
   user_data->resourcelocks->Init ();
-  user_data->threadinterface->Init0 ();
+  user_data->threadinterface->Init (user_data->forkee);
 
   threadname_init ();
   debug_init ();
@@ -658,6 +658,7 @@ dll_crt0_1 ()
 
   regthread ("main", GetCurrentThreadId ());
 
+  int envc = 0;
   char **envp = NULL;
 
   if (child_proc_info)
@@ -671,14 +672,17 @@ dll_crt0_1 ()
 	    cygheap_fixup_in_child (child_proc_info->parent, 0);
 	    alloc_stack (fork_info);
 	    set_myself (mypid);
-	    user_data->forkee = child_proc_info->cygpid;
 	    user_data->heaptop = child_proc_info->heaptop;
 	    user_data->heapbase = child_proc_info->heapbase;
 	    user_data->heapptr = child_proc_info->heapptr;
 	    ProtectHandle (child_proc_info->forker_finished);
 	    break;
-	  case PROC_EXEC:
 	  case PROC_SPAWN:
+	    CloseHandle (spawn_info->hexec_proc);
+	    goto around;
+	  case PROC_EXEC:
+	    hexec_proc = spawn_info->hexec_proc;
+	  around:
 	    HANDLE h;
 	    cygheap_fixup_in_child (spawn_info->parent, 1);
 	    if (!spawn_info->moreinfo->myself_pinfo ||
@@ -689,12 +693,14 @@ dll_crt0_1 ()
 	    set_myself (mypid, h);
 	    __argc = spawn_info->moreinfo->argc;
 	    __argv = spawn_info->moreinfo->argv;
-	    envp = spawn_info->moreinfo->environ;
+	    envp = spawn_info->moreinfo->envp;
+	    envc = spawn_info->moreinfo->envc;
 	    cygcwd.fixup_after_exec (spawn_info->moreinfo->cwd_win32,
 				     spawn_info->moreinfo->cwd_posix,
 				     spawn_info->moreinfo->cwd_hash);
 	    fdtab.fixup_after_exec (spawn_info->parent, spawn_info->moreinfo->nfds,
 				    spawn_info->moreinfo->fds);
+	    signal_fixup_after_exec (child_proc_info->type == PROC_SPAWN);
 	    CloseHandle (spawn_info->parent);
 	    if (spawn_info->moreinfo->old_title)
 	      {
@@ -702,6 +708,9 @@ dll_crt0_1 ()
 		cfree (spawn_info->moreinfo->old_title);
 	      }
 	    ProtectHandle (child_proc_info->subproc_ready);
+	    myself->uid = spawn_info->moreinfo->uid;
+	    if (myself->uid == USHRT_MAX)
+	      myself->use_psid = 0;
 	    break;
 	}
     }
@@ -730,6 +739,8 @@ dll_crt0_1 ()
      instead of each time a file is opened. */
   set_process_privileges ();
 
+  cygbench ("pre-forkee");
+
   if (user_data->forkee)
     {
       /* If we've played with the stack, stacksize != 0.  That means that
@@ -751,24 +762,11 @@ dll_crt0_1 ()
   cygcwd.init ();
 
   /* Initialize our process table entry. */
-  pinfo_init (envp);
+  pinfo_init (envp, envc);
 
   if (!old_title && GetConsoleTitle (title_buf, TITLESIZE))
       old_title = title_buf;
 
-  /* Nasty static stuff needed by newlib - initialize it.
-     Note that impure_ptr has already been set up to point to this above
-     NB. This *MUST* be done here, just after the forkee code as some
-     of the calls below (eg. uinfo_init) do stdio calls - this area must
-     be set to zero before then. */
-
-  user_data->threadinterface->ClearReent();
-  user_data->threadinterface->Init1();
-
-  char *line = GetCommandLineA ();
-
-  line = strcpy ((char *) alloca (strlen (line) + 1), line);
-
   /* Allocate fdtab */
   dtable_init ();
 
@@ -786,6 +784,9 @@ dll_crt0_1 ()
 
   if (!__argc)
     {
+      char *line = GetCommandLineA ();
+      line = strcpy ((char *) alloca (strlen (line) + 1), line);
+
       /* Scan the command line and build argv.  Expand wildcards if not
 	 called from another cygwin process. */
       build_argv (line, __argv, __argc,
@@ -848,6 +849,7 @@ dll_crt0_1 ()
   set_errno (0);
 
   MALLOC_CHECK;
+  cygbench (__progname);
   if (user_data->main)
     exit (user_data->main (__argc, __argv, *user_data->envptr));
 }
@@ -862,6 +864,9 @@ extern "C" void __stdcall
 _dll_crt0 ()
 {
   char zeros[sizeof (fork_info->zero)] = {0};
+#ifdef DEBUGGING
+  strace.microseconds ();
+#endif
 
   /* Set the os_being_run global. */
   set_os_type ();
@@ -893,10 +898,11 @@ _dll_crt0 ()
     {
       switch (fork_info->type)
 	{
-	  case PROC_EXEC:
-	  case PROC_SPAWN:
 	  case PROC_FORK:
 	  case PROC_FORK1:
+	    user_data->forkee = fork_info->cygpid;
+	  case PROC_EXEC:
+	  case PROC_SPAWN:
 	    {
 	      child_proc_info = fork_info;
 	      mypid = child_proc_info->cygpid;
@@ -997,9 +1003,7 @@ do_exit (int status)
 	}
     }
 
-  if ((hExeced && hExeced != INVALID_HANDLE_VALUE) || (n & EXIT_NOCLOSEALL))
-    n &= ~EXIT_NOCLOSEALL;
-  else if (exit_state < ES_CLOSEALL)
+  if (exit_state < ES_CLOSEALL)
     {
       exit_state = ES_CLOSEALL;
       close_all_files ();
@@ -1024,6 +1028,8 @@ do_exit (int status)
       /* Kill orphaned children on group leader exit */
       if (myself->pid == myself->pgid)
 	{
+	  system_printf ("%d == pgrp %d, send SIG{HUP,CONT} to stopped children",
+			  myself->pid, myself->pgid);
 	  sigproc_printf ("%d == pgrp %d, send SIG{HUP,CONT} to stopped children",
 			  myself->pid, myself->pgid);
 	  kill_pgrp (myself->pgid, -SIGHUP);
@@ -1044,17 +1050,7 @@ do_exit (int status)
     }
 
   window_terminate ();
-  fill_rusage (&myself->rusage_self, hMainProc);
-
   events_terminate ();
-
-  if (hExeced && hExeced != INVALID_HANDLE_VALUE)
-    {
-      debug_printf ("Killing(%d) non-cygwin process, handle %p", n, hExeced);
-      TerminateProcess (hExeced, n);
-      ForceCloseHandle1 (hExeced, childhProc);
-    }
-
   shared_terminate ();
 
   minimal_printf ("winpid %d, exit %d", GetCurrentProcessId (), n);
@@ -1101,6 +1097,16 @@ __api_fatal (const char *fmt, ...)
   myself->exit (1);
 }
 
+#ifdef DEBUGGING
+void __stdcall
+cygbench (const char *s)
+{
+  char buf[1024];
+  if (GetEnvironmentVariable ("CYGWIN_BENCH", buf, sizeof (buf)))
+    small_printf ("%05d ***** %s : %10d\n", GetCurrentProcessId (), s, strace.microseconds ());
+}
+#endif
+
 extern "C" {
 
 /* This struct is unused, but it illustrates the layout of a DLL
diff --git a/winsup/cygwin/debug.h b/winsup/cygwin/debug.h
index 419cbab1b..ff4313f77 100644
--- a/winsup/cygwin/debug.h
+++ b/winsup/cygwin/debug.h
@@ -16,22 +16,12 @@ details. */
 #endif
 
 extern "C" {
-#ifndef DEBUGGING0
-DWORD __stdcall WFSO (HANDLE, DWORD);
-DWORD __stdcall WFMO (DWORD, CONST HANDLE *, BOOL, DWORD);
-#else
-DWORD __stdcall WFSO (const char *fn, int ln, HANDLE, DWORD);
-DWORD __stdcall WFMO (const char *fn, int ln, DWORD, CONST HANDLE *, BOOL, DWORD);
-#endif
+DWORD __stdcall WFSO (HANDLE, DWORD) __attribute__ ((regparm(2)));
+DWORD __stdcall WFMO (DWORD, CONST HANDLE *, BOOL, DWORD) __attribute__ ((regparm(3)));
 }
 
-#ifndef DEBUGGING0
 #define WaitForSingleObject WFSO
 #define WaitForMultipleObject WFMO
-#else
-#define WaitForSingleObject(a, b) WFSO (__FUNCTION__, __LINE__, a, b)
-#define WaitForMultipleObject(a, b, c, d) WFMO (__FUNCTION__, __LINE__, a, b, c, d)
-#endif
 
 #if !defined(_DEBUG_H_)
 #define _DEBUG_H_
@@ -43,6 +33,7 @@ void __stdcall regthread (const char *, DWORD);
 int __stdcall iscygthread ();
 
 #ifndef DEBUGGING
+# define cygbench(s)
 # define ForceCloseHandle CloseHandle
 # define ForceCloseHandle1(h, n) CloseHandle (h)
 # define ForceCloseHandle2(h, n) CloseHandle (h)
@@ -75,6 +66,7 @@ void debug_init ();
 void __stdcall add_handle (const char *, int, HANDLE, const char *);
 BOOL __stdcall close_handle (const char *, int, HANDLE, const char *, BOOL);
 int __stdcall lpfu (const char *, int, DWORD timeout);
+void __stdcall cygbench (const char *s);
 
 #endif /*DEBUGGING*/
 #endif /*_DEBUG_H_*/
diff --git a/winsup/cygwin/dtable.cc b/winsup/cygwin/dtable.cc
index 7d520b6da..be92bfce4 100644
--- a/winsup/cygwin/dtable.cc
+++ b/winsup/cygwin/dtable.cc
@@ -29,7 +29,6 @@ details. */
 #include "fhandler.h"
 #include "path.h"
 #include "dtable.h"
-#include "thread.h"
 
 dtable fdtab;
 
@@ -154,7 +153,7 @@ dtable::release (int fd)
 {
   if (!not_open (fd))
     {
-      delete fds[fd];	/* CGF FIXME */
+      delete fds[fd];
       fds[fd] = NULL;
     }
 }
diff --git a/winsup/cygwin/dtable.h b/winsup/cygwin/dtable.h
index 85963fc2d..1952e944b 100644
--- a/winsup/cygwin/dtable.h
+++ b/winsup/cygwin/dtable.h
@@ -27,14 +27,14 @@ public:
   fhandler_base *build_fhandler (int fd, DWORD dev, const char *name,
 				 int unit = -1);
   fhandler_base *build_fhandler (int fd, const char *name, HANDLE h);
-  int not_open (int n);
+  int not_open (int n) __attribute__ ((regparm(1)));
   int find_unused_handle (int start);
   int find_unused_handle () { return find_unused_handle (first_fd_for_open);}
   void release (int fd);
   void init_std_file_from_handle (int fd, HANDLE handle, DWORD access, const char *name);
   int dup2 (int oldfd, int newfd);
   void fixup_after_exec (HANDLE, size_t, fhandler_base **);
-  fhandler_base *operator [](int fd) { return fds[fd]; }
+  inline fhandler_base *operator [](int fd) { return fds[fd]; }
   select_record *select_read (int fd, select_record *s);
   select_record *select_write (int fd, select_record *s);
   select_record *select_except (int fd, select_record *s);
diff --git a/winsup/cygwin/environ.cc b/winsup/cygwin/environ.cc
index f0a3fc7d7..612e7e13e 100644
--- a/winsup/cygwin/environ.cc
+++ b/winsup/cygwin/environ.cc
@@ -517,10 +517,10 @@ regopt (const char *name)
  * environment variable and set appropriate options from it.
  */
 void
-environ_init (char **envp)
+environ_init (char **envp, int envc)
 {
   char *rawenv;
-  int sz, i;
+  int i;
   char *p;
   char *newp;
   int sawTERM = 0;
@@ -541,9 +541,8 @@ environ_init (char **envp)
     envp_passed_in = 0;
   else
     {
-      sz = envsize (envp, 1);
-      char **newenv = (char **) malloc (sz);
-      memcpy (newenv, envp, sz);
+      char **newenv = (char **) malloc (envc);
+      memcpy (newenv, envp, envc);
       cfree (envp);
       envp = newenv;
       envp_passed_in = 1;
@@ -551,7 +550,7 @@ environ_init (char **envp)
     }
 
   /* Allocate space for environment + trailing NULL + CYGWIN env. */
-  lastenviron = envp = (char **) malloc ((4 + (sz = 100)) * sizeof (char *));
+  lastenviron = envp = (char **) malloc ((4 + (envc = 100)) * sizeof (char *));
   rawenv = GetEnvironmentStrings ();
 
   /* Current directory information is recorded as variables of the
@@ -561,9 +560,8 @@ environ_init (char **envp)
   for (i = 0, p = rawenv; *p != '\0'; p = strchr (p, '\0') + 1, i++)
     {
       newp = strdup (p);
-      if (i >= sz)
-	envp = (char **) realloc (envp, (4 + (sz += 100)) *
-					    sizeof (char *));
+      if (i >= envc)
+	envp = (char **) realloc (envp, (4 + (envc += 100)) * sizeof (char *));
       envp[i] = newp;
       if (*newp == '=')
 	*newp = '!';
diff --git a/winsup/cygwin/environ.h b/winsup/cygwin/environ.h
index e5967eb20..888b473dd 100644
--- a/winsup/cygwin/environ.h
+++ b/winsup/cygwin/environ.h
@@ -9,7 +9,7 @@ Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
 details. */
 
 /* Initialize the environment */
-void environ_init (char **);
+void environ_init (char **, int);
 
 /* The structure below is used to control conversion to/from posix-style
  * file specs.  Currently, only PATH and HOME are converted, but PATH
diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc
index 8a65f355b..75ad01c67 100644
--- a/winsup/cygwin/exceptions.cc
+++ b/winsup/cygwin/exceptions.cc
@@ -18,7 +18,6 @@ details. */
 #include "sigproc.h"
 #include "pinfo.h"
 #include "cygerrno.h"
-#include "thread.h"
 #include "perthread.h"
 #include "shared_info.h"
 #include "perprocess.h"
@@ -639,7 +638,7 @@ interrupt_now (CONTEXT *ctx, int sig, struct sigaction& siga, void *handler)
   SetThreadContext (myself->getthread2signal (), ctx); /* Restart the thread */
 }
 
-void __cdecl
+void __stdcall
 signal_fixup_after_fork ()
 {
   if (!sigsave.sig)
@@ -653,6 +652,18 @@ signal_fixup_after_fork ()
     }
 }
 
+void __stdcall
+signal_fixup_after_exec (bool isspawn)
+{
+  /* Set up child's signal handlers */
+  for (int i = 0; i < NSIG; i++)
+    {
+      myself->getsig(i).sa_mask = 0;
+      if (myself->getsig(i).sa_handler != SIG_IGN || isspawn)
+	myself->getsig(i).sa_handler = SIG_DFL;
+    }
+}
+
 static int
 interrupt_on_return (DWORD ebp, int sig, struct sigaction& siga, void *handler)
 {
@@ -775,7 +786,7 @@ call_handler (int sig, struct sigaction& siga, void *handler)
     }
 
 next:
-  if (hExeced != NULL || (!using_mainthread_frame && interruptible (cx.Eip)))
+  if (!using_mainthread_frame && interruptible (cx.Eip))
     interrupt_now (&cx, sig, siga, handler);
   else if (!interrupt_on_return (ebp, sig, siga, handler))
     {
diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc
index 7c1299bf8..f6ce3adf9 100644
--- a/winsup/cygwin/fhandler.cc
+++ b/winsup/cygwin/fhandler.cc
@@ -463,7 +463,7 @@ fhandler_base::read (void *in_ptr, size_t in_len)
     }
 
   /* Scan buffer and turn \r\n into \n */
-  register char *src= (char *) ptr;
+  register char *src = (char *) ptr;
   register char *dst = (char *) ptr;
   register char *end = src + copied_chars - 1;
 
@@ -772,7 +772,7 @@ rootdir(char *full_path)
    * \\server\share... -> \\server\share\
    * else current drive.
    */
-  char *root=full_path;
+  char *root = full_path;
 
   if (full_path[1] == ':')
     strcpy (full_path + 2, "\\");
diff --git a/winsup/cygwin/fork.cc b/winsup/cygwin/fork.cc
index c51fe23a3..a883ed553 100644
--- a/winsup/cygwin/fork.cc
+++ b/winsup/cygwin/fork.cc
@@ -301,6 +301,7 @@ fork_child (HANDLE& hParent, dll *&first_dll, bool& load_dlls)
 
   /* Initialize signal/process handling */
   sigproc_init ();
+  cygbench ("fork-child");
   return 0;
 }
 
diff --git a/winsup/cygwin/grp.cc b/winsup/cygwin/grp.cc
index 9c4f3794a..0469c0217 100644
--- a/winsup/cygwin/grp.cc
+++ b/winsup/cygwin/grp.cc
@@ -16,7 +16,6 @@ details. */
 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>
-#include "thread.h"
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
diff --git a/winsup/cygwin/include/sys/strace.h b/winsup/cygwin/include/sys/strace.h
index 82cc75d5c..d40e3ad7d 100644
--- a/winsup/cygwin/include/sys/strace.h
+++ b/winsup/cygwin/include/sys/strace.h
@@ -23,10 +23,10 @@
 
 class strace
 {
-  int microseconds ();
   int vsprntf (char *buf, const char *func, const char *infmt, va_list ap);
   void write (unsigned category, const char *buf, int count);
 public:
+  int microseconds ();
   int version;
   int active;
   int lmicrosec;
diff --git a/winsup/cygwin/mmap.cc b/winsup/cygwin/mmap.cc
index 6beb45a2e..6d00a53f1 100644
--- a/winsup/cygwin/mmap.cc
+++ b/winsup/cygwin/mmap.cc
@@ -16,7 +16,6 @@ details. */
 #include "fhandler.h"
 #include "dtable.h"
 #include "cygerrno.h"
-#include "thread.h"
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
diff --git a/winsup/cygwin/net.cc b/winsup/cygwin/net.cc
index c6d88f613..bb33bca57 100644
--- a/winsup/cygwin/net.cc
+++ b/winsup/cygwin/net.cc
@@ -27,7 +27,6 @@ details. */
 #include "fhandler.h"
 #include "path.h"
 #include "dtable.h"
-#include "thread.h"
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
diff --git a/winsup/cygwin/passwd.cc b/winsup/cygwin/passwd.cc
index 29e912699..62b2955a0 100644
--- a/winsup/cygwin/passwd.cc
+++ b/winsup/cygwin/passwd.cc
@@ -16,7 +16,6 @@ details. */
 #include "cygerrno.h"
 #include "fhandler.h"
 #include "dtable.h"
-#include "thread.h"
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
index cfc81263a..cbd6e5493 100644
--- a/winsup/cygwin/path.cc
+++ b/winsup/cygwin/path.cc
@@ -62,7 +62,6 @@ details. */
 #include "cygerrno.h"
 #include "fhandler.h"
 #include "path.h"
-#include "thread.h"
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
@@ -574,15 +573,13 @@ normalize_posix_path (const char *src, char *dst)
     }
   if (!isslash (src[0]))
     {
-      char cwd[MAX_PATH];
-      if (!cygcwd.get (cwd))
+      if (!cygcwd.get (dst))
 	return get_errno ();
-      if (strlen (cwd) + 1 + strlen (src) >= MAX_PATH)
+      if (strlen (dst) + 1 + strlen (src) >= MAX_PATH)
 	{
 	  debug_printf ("ENAMETOOLONG = normalize_posix_path (%s)", src);
 	  return ENAMETOOLONG;
 	}
-      strcpy (dst, cwd);
       dst = strchr (dst, '\0');
       if (*src == '.')
 	goto sawdot;
@@ -681,17 +678,15 @@ normalize_win32_path (const char *src, char *dst)
 
   if (!SLASH_P (src[0]) && strchr (src, ':') == NULL)
     {
-      char cwd[MAX_PATH];
-      if (!cygcwd.get (cwd, 0))
+      if (!cygcwd.get (dst, 0))
 	return get_errno ();
-      if (strlen (cwd) + 1 + strlen (src) >= MAX_PATH)
+      if (strlen (dst) + 1 + strlen (src) >= MAX_PATH)
 	{
 	  debug_printf ("ENAMETOOLONG = normalize_win32_path (%s)", src);
 	  return ENAMETOOLONG;
 	}
-      strcpy (dst, cwd);
       dst += strlen (dst);
-      if (!*cwd || !SLASH_P (dst[-1]))
+      if (!SLASH_P (dst[-1]))
 	*dst++ = '\\';
     }
   /* Two leading \'s?  If so, preserve them.  */
@@ -2775,7 +2770,7 @@ cygwin_split_path (const char *path, char *dir, char *file)
     })
 
 /* Return TRUE if two strings match up to length n */
-int __stdcall
+extern "C" int __stdcall
 strncasematch (const char *s1, const char *s2, size_t n)
 {
   if (s1 == s2)
@@ -2792,7 +2787,7 @@ strncasematch (const char *s1, const char *s2, size_t n)
 }
 
 /* Return TRUE if two strings match */
-int __stdcall
+extern "C" int __stdcall
 strcasematch (const char *s1, const char *s2)
 {
   if (s1 == s2)
@@ -2807,7 +2802,7 @@ strcasematch (const char *s1, const char *s2)
   return *s2 == '\0';
 }
 
-char * __stdcall
+extern "C" char * __stdcall
 strcasestr (const char *searchee, const char *lookfor)
 {
   if (*searchee == 0)
@@ -2881,10 +2876,11 @@ cwdstuff::fixup_after_exec (char *win32_cwd, char *posix_cwd, DWORD hash_cwd)
 bool
 cwdstuff::get_initial ()
 {
+  lock->acquire ();
+
   if (win32)
     return 1;
 
-  lock->acquire ();
   int i;
   DWORD len, dlen;
   for (i = 0, dlen = MAX_PATH, len = 0; i < 3; dlen *= 2, i++)
@@ -2899,6 +2895,7 @@ cwdstuff::get_initial ()
       __seterrno ();
       lock->release ();
       debug_printf ("get_initial_cwd failed, %E");
+      lock->release ();
       return 0;
     }
   set (NULL);
diff --git a/winsup/cygwin/pinfo.cc b/winsup/cygwin/pinfo.cc
index 8d037e3af..21aa0fb8d 100644
--- a/winsup/cygwin/pinfo.cc
+++ b/winsup/cygwin/pinfo.cc
@@ -16,7 +16,6 @@ details. */
 #include "fhandler.h"
 #include "dtable.h"
 #include "cygerrno.h"
-#include "thread.h"
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
@@ -30,7 +29,7 @@ static char NO_COPY pinfo_dummy[sizeof(pinfo)] = {0};
 
 pinfo NO_COPY myself ((_pinfo *)&pinfo_dummy);	// Avoid myself != NULL checks
 
-static HANDLE hexec_proc = NULL;
+HANDLE hexec_proc = NULL;
 
 void __stdcall
 pinfo_fixup_after_fork ()
@@ -46,19 +45,6 @@ pinfo_fixup_after_fork ()
     }
 }
 
-void __stdcall
-pinfo_fixup_in_spawned_child (HANDLE hchild)
-{
-  HANDLE h;
-  if (!hexec_proc)
-    return;
-  if (!DuplicateHandle (hchild, hexec_proc, hMainProc, &h, 0, TRUE,
-			DUPLICATE_CLOSE_SOURCE))
-    system_printf ("couldn't close handle %p in child, %E", hexec_proc);
-  else
-    CloseHandle (h);
-}
-
 /* Initialize the process table.
    This is done once when the dll is first loaded.  */
 
@@ -102,11 +88,11 @@ set_myself (pid_t pid, HANDLE h)
 /* Initialize the process table entry for the current task.
    This is not called for fork'd tasks, only exec'd ones.  */
 void __stdcall
-pinfo_init (char **envp)
+pinfo_init (char **envp, int envc)
 {
   if (envp)
     {
-      environ_init (envp);
+      environ_init (envp, envc);
       /* spawn has already set up a pid structure for us so we'll use that */
       myself->process_state |= PID_CYGPARENT;
     }
@@ -120,96 +106,26 @@ pinfo_init (char **envp)
       myself->ctty = -1;
       myself->uid = USHRT_MAX;
 
-      environ_init (NULL);	/* call after myself has been set up */
+      environ_init (NULL, 0);	/* call after myself has been set up */
     }
 
   debug_printf ("pid %d, pgid %d", myself->pid, myself->pgid);
 }
 
 void
-_pinfo::exit (UINT n)
+_pinfo::exit (UINT n, bool norecord)
 {
-  process_state = PID_EXITED;
-  sigproc_printf ("Calling ExitProcess %d", n);
-  ExitProcess (n);
-}
+  if (!norecord)
+    process_state = PID_EXITED;
 
-struct sigaction&
-_pinfo::getsig(int sig)
-{
-#ifdef _MT_SAFE
-  if (thread2signal)
-    return thread2signal->sigs[sig];
-  return sigs[sig];
-#else
-  return sigs[sig];
-#endif
-};
-
-sigset_t&
-_pinfo::getsigmask ()
-{
-#ifdef _MT_SAFE
-  if (thread2signal)
-    return *thread2signal->sigmask;
-  return sig_mask;
-#else
-  return sig_mask;
-#endif
-};
-
-void
-_pinfo::setsigmask (sigset_t _mask)
-{
-#ifdef _MT_SAFE
-  if (thread2signal)
-	*(thread2signal->sigmask) = _mask;
-  sig_mask=_mask;
-#else
-  sig_mask=_mask;
-#endif
-}
+  /* FIXME:  There is a potential race between an execed process and its
+     parent here.  I hated to add a mutex just for this, though.  */
+  struct rusage r;
+  fill_rusage (&r, hMainProc);
+  add_rusage (&rusage_self, &r);
 
-LONG *
-_pinfo::getsigtodo(int sig)
-{
-#ifdef _MT_SAFE
-  if (thread2signal)
-    return thread2signal->sigtodo + __SIGOFFSET + sig;
-  return _sigtodo + __SIGOFFSET + sig;
-#else
-  return _sigtodo + __SIGOFFSET + sig;
-#endif
-}
-
-extern HANDLE hMainThread;
-
-HANDLE
-_pinfo::getthread2signal()
-{
-#ifdef _MT_SAFE
-  if (thread2signal)
-    return thread2signal->win32_obj_id;
-  return hMainThread;
-#else
-  return hMainThread;
-#endif
-}
-
-void
-_pinfo::setthread2signal(void *_thr)
-{
-#ifdef _MT_SAFE
-   // assert has myself lock
-   thread2signal=(ThreadItem*)_thr;
-#else
-#endif
-}
-
-void
-_pinfo::copysigs(_pinfo *_other)
-{
-  sigs = _other->sigs;
+  sigproc_printf ("Calling ExitProcess %d", n);
+  ExitProcess (n);
 }
 
 void
diff --git a/winsup/cygwin/pinfo.h b/winsup/cygwin/pinfo.h
index 2c57d83c8..067ef6104 100644
--- a/winsup/cygwin/pinfo.h
+++ b/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 *);
diff --git a/winsup/cygwin/sigproc.cc b/winsup/cygwin/sigproc.cc
index 1253b23eb..1d381d8bb 100644
--- a/winsup/cygwin/sigproc.cc
+++ b/winsup/cygwin/sigproc.cc
@@ -456,22 +456,9 @@ proc_terminate (void)
 	  pchildren[i].release ();
 	}
       nchildren = nzombies = 0;
-
       /* Just zero sync_proc_subproc as the delete below seems to cause
 	 problems for older gccs. */
-      #if 1
 	sync_proc_subproc = NULL;
-      #else
-      /* Attempt to close and release sync_proc_subproc in a
-       * non-raceable manner.
-       */
-      muto *m = sync_proc_subproc;
-      if (m)
-	{
-	  sync_proc_subproc = NULL;
-	  // delete m;
-	}
-      #endif
     }
   sigproc_printf ("leaving");
 }
diff --git a/winsup/cygwin/sigproc.h b/winsup/cygwin/sigproc.h
index ee2e6a6cd..1a79cffc5 100644
--- a/winsup/cygwin/sigproc.h
+++ b/winsup/cygwin/sigproc.h
@@ -101,11 +101,10 @@ BOOL __stdcall proc_exists (_pinfo *);
 BOOL __stdcall pid_exists (pid_t);
 int __stdcall sig_send (_pinfo *, int, DWORD ebp = (DWORD) __builtin_frame_address (0));
 void __stdcall signal_fixup_after_fork ();
+void __stdcall signal_fixup_after_exec (bool);
 
 extern char myself_nowait_dummy[];
 extern char myself_nowait_nonmain_dummy[];
-extern HANDLE hExeced;		// Process handle of new window
-				//  process created by spawn_guts()
 
 #define WAIT_SIG_EXITING (WAIT_OBJECT_0 + 1)
 
diff --git a/winsup/cygwin/spawn.cc b/winsup/cygwin/spawn.cc
index 6939ad578..74f01fcd4 100644
--- a/winsup/cygwin/spawn.cc
+++ b/winsup/cygwin/spawn.cc
@@ -158,8 +158,6 @@ handle (int n, int direction)
   return fh->get_output_handle ();
 }
 
-HANDLE NO_COPY hExeced = NULL;
-
 int
 iscmd (const char *argv0, const char *what)
 {
@@ -289,12 +287,9 @@ static int __stdcall
 spawn_guts (HANDLE hToken, const char * prog_arg, const char *const *argv,
 	    const char *const envp[], int mode)
 {
-  int i;
   BOOL rc;
   pid_t cygpid;
 
-  hExeced = NULL;
-
   MALLOC_CHECK;
 
   if (prog_arg == NULL)
@@ -507,10 +502,12 @@ spawn_guts (HANDLE hToken, const char * prog_arg, const char *const *argv,
   cygcwd.copy (ciresrv.moreinfo->cwd_posix, ciresrv.moreinfo->cwd_win32,
 	       ciresrv.moreinfo->cwd_hash);
 
-  ciresrv.moreinfo->environ = (char **) cmalloc (HEAP_1_ARGV, envsize (envp, 1));
+  ciresrv.moreinfo->envc = envsize (envp, 0);
+  ciresrv.moreinfo->envp = (char **) cmalloc (HEAP_1_ARGV, ciresrv.moreinfo->envc);
+  ciresrv.hexec_proc = hexec_proc;
   char **c;
   const char * const *e;
-  for (c = ciresrv.moreinfo->environ, e = envp; *e;)
+  for (c = ciresrv.moreinfo->envp, e = envp; *e;)
     *c++ = cstrdup1 (*e++);
   *c = NULL;
   if (mode != _P_OVERLAY ||
@@ -530,11 +527,12 @@ skip_arg_parsing:
 
   syscall_printf ("spawn_guts (%s, %.132s)", (char *) real_path, one_line.buf);
 
-  int flags = CREATE_DEFAULT_ERROR_MODE | CREATE_SUSPENDED |
-	      GetPriorityClass (hMainProc);
+  int flags = CREATE_DEFAULT_ERROR_MODE | GetPriorityClass (hMainProc);
 
   if (mode == _P_DETACH || !set_console_state_for_spawn ())
     flags |= DETACHED_PROCESS;
+  if (mode != _P_OVERLAY)
+    flags |= CREATE_SUSPENDED;
 
   /* Build windows style environment list */
   char *envblock;
@@ -552,7 +550,24 @@ skip_arg_parsing:
   if (!hToken && myself->token != INVALID_HANDLE_VALUE)
     hToken = myself->token;
 
-  if (hToken)
+cygbench ("spawn-guts");
+  if (!hToken)
+    {
+      ciresrv.moreinfo->uid = getuid ();
+      rc = CreateProcess (real_path,	/* image name - with full path */
+			  one_line.buf,	/* what was passed to exec */
+					  /* process security attrs */
+			  allow_ntsec ? sec_user (sa_buf) : &sec_all_nih,
+					  /* thread security attrs */
+			  allow_ntsec ? sec_user (sa_buf) : &sec_all_nih,
+			  TRUE,	/* inherit handles from parent */
+			  flags,
+			  envblock,/* environment */
+			  0,	/* use current drive/directory */
+			  &si,
+			  &pi);
+    }
+  else
     {
       /* allow the child to interact with our window station/desktop */
       HANDLE hwst, hdsk;
@@ -561,6 +576,7 @@ skip_arg_parsing:
       char wstname[1024];
       char dskname[1024];
 
+      ciresrv.moreinfo->uid = USHRT_MAX;
       hwst = GetProcessWindowStation();
       SetUserObjectSecurity(hwst, &dsi, get_null_sd ());
       GetUserObjectInformation(hwst, UOI_NAME, wstname, 1024, &n);
@@ -612,19 +628,6 @@ skip_arg_parsing:
 	  && myself->impersonated && myself->token != INVALID_HANDLE_VALUE)
 	seteuid (uid);
     }
-  else
-    rc = CreateProcess (real_path,	/* image name - with full path */
-		        one_line.buf,	/* what was passed to exec */
-					/* process security attrs */
-		        allow_ntsec ? sec_user (sa_buf) : &sec_all_nih,
-					/* thread security attrs */
-		        allow_ntsec ? sec_user (sa_buf) : &sec_all_nih,
-		        TRUE,	/* inherit handles from parent */
-		        flags,
-		        envblock,/* environment */
-		        0,	/* use current drive/directory */
-		        &si,
-		        &pi);
 
   MALLOC_CHECK;
   if (envblock)
@@ -654,26 +657,17 @@ skip_arg_parsing:
 
   /* Name the handle similarly to proc_subproc. */
   ProtectHandle1 (pi.hProcess, childhProc);
-  ProtectHandle (pi.hThread);
 
   if (mode == _P_OVERLAY)
     {
+      /* These are both duplicated in the child code.  We do this here,
+	 primarily for strace. */
       strcpy (myself->progname, real_path);
-      hExeced = pi.hProcess;
       myself->dwProcessId = pi.dwProcessId;
-
-      /* Set up child's signal handlers */
-      /* CGF FIXME - consolidate with signal stuff below */
-      for (i = 0; i < NSIG; i++)
-	{
-	  myself->getsig(i).sa_mask = 0;
-	  if (myself->getsig(i).sa_handler != SIG_IGN || (mode != _P_OVERLAY))
-	    myself->getsig(i).sa_handler = SIG_DFL;
-	}
     }
   else
     {
-      pinfo_fixup_in_spawned_child (pi.hProcess);
+      ProtectHandle (pi.hThread);
       pinfo child (cygpid, 1);
       if (!child)
 	{
@@ -684,7 +678,6 @@ skip_arg_parsing:
       child->username[0] = '\0';
       child->progname[0] = '\0';
       child->ppid = myself->pid;
-      child->uid = myself->uid;
       child->gid = myself->gid;
       child->pgid = myself->pgid;
       child->sid = myself->sid;
@@ -702,27 +695,15 @@ skip_arg_parsing:
       child->rootlen = myself->rootlen;
       child->dwProcessId = pi.dwProcessId;
       child->hProcess = pi.hProcess;
-      for (i = 0; i < NSIG; i++)
-	{
-	  child->getsig(i).sa_mask = 0;
-	  if (child->getsig(i).sa_handler != SIG_IGN || (mode != _P_OVERLAY))
-	    child->getsig(i).sa_handler = SIG_DFL;
-	}
-      if (hToken)
-	{
-	  /* Set child->uid to USHRT_MAX to force calling internal_getlogin()
-	     from child process. Clear username and psid to play it safe. */
-	  child->uid = USHRT_MAX;
-	  child->use_psid = 0;
-	}
       child.remember ();
+      /* Start the child running */
+      ResumeThread (pi.hThread);
     }
 
-  sigproc_printf ("spawned windows pid %d", pi.dwProcessId);
-  /* Start the child running */
-  ResumeThread (pi.hThread);
   ForceCloseHandle (pi.hThread);
 
+  sigproc_printf ("spawned windows pid %d", pi.dwProcessId);
+
   if (hToken && hToken != myself->token)
     CloseHandle (hToken);
 
@@ -824,16 +805,6 @@ skip_arg_parsing:
 	      system_printf ("old hProcess %p, hProcess %p", oldh, myself->hProcess);
 	    }
 	}
-      if (hExeced)
-	{
-	  ForceCloseHandle1 (hExeced, childhProc);
-	  hExeced = INVALID_HANDLE_VALUE;
-	}
-    }
-  else if (exited)
-    {
-      ForceCloseHandle1 (hExeced, childhProc);
-      hExeced = INVALID_HANDLE_VALUE; // stop do_exit from attempting to terminate child
     }
 
   MALLOC_CHECK;
@@ -841,11 +812,9 @@ skip_arg_parsing:
   switch (mode)
     {
     case _P_OVERLAY:
+      ForceCloseHandle1 (pi.hProcess, childhProc);
       proc_terminate ();
-      struct rusage r;
-      fill_rusage (&r, hMainProc);
-      add_rusage (&myself->rusage_self, &r);
-      ExitProcess (0);
+      myself->exit (0, 1);
       break;
     case _P_WAIT:
       waitpid (cygpid, (int *) &res, 0);
diff --git a/winsup/cygwin/strace.cc b/winsup/cygwin/strace.cc
index badf0001a..74f77e1ad 100644
--- a/winsup/cygwin/strace.cc
+++ b/winsup/cygwin/strace.cc
@@ -134,7 +134,9 @@ strace::vsprntf (char *buf, const char *func, const char *infmt, va_list ap)
 	*p = '\000';
       p = progname;
       count = __small_sprintf (buf, fmt, p && *p ? p : "?",
-			       myself->pid, hExeced ? "!" : "");
+			       myself->pid,
+			       myself->dwProcessId != GetCurrentProcessId ()
+			       ? "!" : "");
       if (func)
 	count += getfunc (buf + count, func);
     }
diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc
index f54cc1ccf..f4a13b0a7 100644
--- a/winsup/cygwin/syscalls.cc
+++ b/winsup/cygwin/syscalls.cc
@@ -29,7 +29,6 @@ details. */
 #include "fhandler.h"
 #include "path.h"
 #include "dtable.h"
-#include "thread.h"
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc
index fb1a3d67c..cb2a98efe 100644
--- a/winsup/cygwin/thread.cc
+++ b/winsup/cygwin/thread.cc
@@ -20,7 +20,6 @@ details. */
 #include <assert.h>
 #include <stdlib.h>
 #include <syslog.h>
-#include "thread.h"
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
@@ -81,7 +80,7 @@ _reent_clib ()
 
   SetLastError (tmp);
   return _r->_clib;
-};
+}
 
 struct _winsup_t *
 _reent_winsup ()
@@ -95,7 +94,7 @@ _reent_winsup ()
 #endif
   SetLastError (tmp);
   return _r->_winsup;
-};
+}
 
 inline LPCRITICAL_SECTION
 ResourceLocks::Lock (int _resid)
@@ -108,7 +107,7 @@ ResourceLocks::Lock (int _resid)
 		 _resid, &lock, user_data, myself->pid, GetCurrentThreadId ());
 #endif
   return &lock;
-};
+}
 
 void
 SetResourceLock (int _res_id, int _mode, const char *_function)
@@ -138,7 +137,7 @@ ReleaseResourceLock (int _res_id, int _mode, const char *_function)
 #endif
 
   LeaveCriticalSection (user_data->resourcelocks->Lock (_res_id));
-};
+}
 
 #ifdef _CYG_THREAD_FAILSAFE
 void
@@ -157,8 +156,6 @@ AssertResourceOwner (int _res_id, int _mode)
 void
 ResourceLocks::Init ()
 {
-  thread_printf ("Init resource lock %p -> %p", this, &lock);
-
   InitializeCriticalSection (&lock);
   inited = true;
 
@@ -167,8 +164,8 @@ ResourceLocks::Init ()
   count = 0;
 #endif
 
-  thread_printf ("Resource lock %p inited by %p , %d", &lock, user_data, myself->pid);
-};
+  thread_printf ("lock %p inited by %p , %d", &lock, user_data, myself->pid);
+}
 
 void
 ResourceLocks::Delete ()
@@ -179,7 +176,7 @@ ResourceLocks::Delete ()
       DeleteCriticalSection (&lock);
       inited = false;
     }
-};
+}
 
 
 // Thread interface
@@ -188,7 +185,7 @@ void
 MTinterface::ReleaseItem (MTitem * _item)
 {
   _item->used = false;
-};
+}
 
 MTitem *
 MTinterface::Find (void *_value, int (*comp) (void *, void *), register int &_index, MTList * _list)
@@ -202,7 +199,7 @@ MTinterface::Find (void *_value, int (*comp) (void *, void *), register int &_in
       current = NULL;
     }
   return current;
-};
+}
 
 int
 MTinterface::Find (MTitem & _item, MTList * _list)
@@ -216,21 +213,22 @@ MTinterface::Find (MTitem & _item, MTList * _list)
 	break;
     }
   return (_index == _list->index ? -1 : _index);
-};
+}
 
 int
 MTinterface::FindNextUnused (MTList * _list)
 {
   register int i = 0;
-  for (; i < _list->index && _list->items[i] != NULL && _list->items[i]->used && _list->items[i]->joinable != 'Y';  i++);
+  for (; i < _list->index && _list->items[i] != NULL && _list->items[i]->used && _list->items[i]->joinable != 'Y';  i++)
+    continue;
   return i;
-};
+}
 
 MTitem *
 MTinterface::GetItem (int _index, MTList * _list)
 {
   return (_index < _list->index ? _list->items[_index] : NULL);
-};
+}
 
 MTitem *
 MTinterface::SetItem (int _index, MTitem * _item, MTList * _list)
@@ -238,23 +236,24 @@ MTinterface::SetItem (int _index, MTitem * _item, MTList * _list)
   if (_index == _list->index && _list->index < MT_MAX_ITEMS)
     _list->index++;
   return (_index < _list->index ? _list->items[_index] = _item : NULL);
-};
+}
 
 int
 CmpPthreadObj (void *_i, void *_value)
 {
   return ((MTitem *) _i)->Id () == *(int *) _value;
-};
+}
 
 int
 CmpThreadId (void *_i, void *_id)
 {
   return ((ThreadItem *) _i)->thread_id == * (DWORD *) _id;
-};
+}
 
 void
-MTinterface::Init0 ()
+MTinterface::Init (int forked)
 {
+#if 0
   for (int i = 0; i < MT_MAX_ITEMS; i++)
     {
       threadlist.items[i] = NULL;
@@ -265,6 +264,7 @@ MTinterface::Init0 ()
   threadlist.index = 0;
   mutexlist.index = 0;
   semalist.index = 0;
+#endif
 
   reent_index = TlsAlloc ();
 
@@ -272,39 +272,35 @@ MTinterface::Init0 ()
   reents._winsup = &winsup_reent;
 
   winsup_reent._process_logmask = LOG_UPTO (LOG_DEBUG);
+#if 0
   winsup_reent._grp_pos = 0;
   winsup_reent._process_ident = 0;
   winsup_reent._process_logopt = 0;
   winsup_reent._process_facility = 0;
+#endif
 
   TlsSetValue (reent_index, &reents);
   // the static reent_data will be used in the main thread
 
-};
+  if (forked)
+    return;
 
-void
-MTinterface::Init1 ()
-{
   // create entry for main thread
 
-  int i = FindNextUnused (&threadlist);
-  assert (i == 0);
-  ThreadItem *item = (ThreadItem *) GetItem (i, &threadlist);
+  ThreadItem *item = (ThreadItem *) GetItem (0, &threadlist);
 
-  item = (ThreadItem *) SetItem (i, &mainthread, &threadlist);
+  item = (ThreadItem *) SetItem (0, &mainthread, &threadlist);
   item->used = true;
   item->win32_obj_id = myself->hProcess;
   item->thread_id = GetCurrentThreadId ();
+#if 0
   item->function = NULL;
 
   item->sigs = NULL;
   item->sigmask = NULL;
   item->sigtodo = NULL;
-};
+#endif
 
-void
-MTinterface::ClearReent ()
-{
   struct _reent *r = _REENT;
   memset (r, 0, sizeof (struct _reent));
 
@@ -312,9 +308,7 @@ MTinterface::ClearReent ()
   r->_stdin = &r->__sf[0];
   r->_stdout = &r->__sf[1];
   r->_stderr = &r->__sf[2];
-
-};
-
+}
 
 ThreadItem *
 MTinterface::CreateThread (pthread_t * t, TFD (func), void *arg, pthread_attr_t a)
@@ -342,8 +336,7 @@ MTinterface::CreateThread (pthread_t * t, TFD (func), void *arg, pthread_attr_t
   *t = (pthread_t) item->win32_obj_id;
 
   return item;
-};
-
+}
 
 MutexItem *
 MTinterface::CreateMutex (pthread_mutex_t * mutex)
@@ -375,7 +368,7 @@ MTinterface::GetCallingThread ()
   DWORD id = GetCurrentThreadId ();
   int index = 0;
   return (ThreadItem *) Find (&id, &CmpThreadId, index, &threadlist);
-};
+}
 
 ThreadItem *
 MTinterface::GetThread (pthread_t * _t)
@@ -383,7 +376,7 @@ MTinterface::GetThread (pthread_t * _t)
   AssertResourceOwner (LOCK_THREAD_LIST, READ_LOCK);
   int index = 0;
   return (ThreadItem *) Find (_t, &CmpPthreadObj, index, &threadlist);
-};
+}
 
 MutexItem *
 MTinterface::GetMutex (pthread_mutex_t * mp)
@@ -406,19 +399,19 @@ void
 MTitem::Destroy ()
 {
   CloseHandle (win32_obj_id);
-};
+}
 
 int
 MutexItem::Lock ()
 {
   return WaitForSingleObject (win32_obj_id, INFINITE);
-};
+}
 
 int
 MutexItem::TryLock ()
 {
   return WaitForSingleObject (win32_obj_id, 0);
-};
+}
 
 int
 MutexItem::UnLock ()
@@ -448,26 +441,26 @@ MTinterface::CreateSemaphore (sem_t * _s, int pshared, int _v)
   *_s = (sem_t) item->win32_obj_id;
 
   return item;
-};
+}
 
 int
 SemaphoreItem::Wait ()
 {
   return WaitForSingleObject (win32_obj_id, INFINITE);
-};
+}
 
 int
 SemaphoreItem::Post ()
 {
   long pc;
   return ReleaseSemaphore (win32_obj_id, 1, &pc);
-};
+}
 
 int
 SemaphoreItem::TryWait ()
 {
   return WaitForSingleObject (win32_obj_id, 0);
-};
+}
 
 
 //////////////////////////  Pthreads
@@ -547,34 +540,34 @@ __pthread_create (pthread_t * thread, const pthread_attr_t * attr, TFD (start_ro
 
   ReleaseResourceLock (LOCK_THREAD_LIST, WRITE_LOCK | READ_LOCK, "__pthread_create");
   return 0;
-};
+}
 
 int
 __pthread_attr_init (pthread_attr_t * attr)
 {
   attr->stacksize = 0;
   return 0;
-};
+}
 
 int
 __pthread_attr_setstacksize (pthread_attr_t * attr, size_t size)
 {
   attr->stacksize = size;
   return 0;
-};
+}
 
 int
 __pthread_attr_getstacksize (pthread_attr_t * attr, size_t * size)
 {
   *size = attr->stacksize;
   return 0;
-};
+}
 
 int
 __pthread_attr_destroy (pthread_attr_t * /*attr*/)
 {
   return 0;
-};
+}
 
 int
 __pthread_exit (void *value_ptr)
@@ -609,7 +602,7 @@ __pthread_join (pthread_t * thread, void **return_val)
   }/* End if*/
 
   return 0;
-};
+}
 
 int
 __pthread_detach (pthread_t * thread)
@@ -667,30 +660,30 @@ __pthread_getsequence_np (pthread_t * thread)
 {
   GETTHREAD ("__pthread_getsequence_np");
   return item->GetThreadId ();
-};
+}
 
 /* Thread SpecificData */
 int
 __pthread_key_create (pthread_key_t */*key*/)
 {
   NOT_IMP ("_p_key_create\n");
-};
+}
 
 int
 __pthread_key_delete (pthread_key_t */*key*/)
 {
   NOT_IMP ("_p_key_delete\n");
-};
+}
 int
 __pthread_setspecific (pthread_key_t */*key*/, const void */*value*/)
 {
   NOT_IMP ("_p_key_setsp\n");
-};
+}
 void *
 __pthread_getspecific (pthread_key_t */*key*/)
 {
   NOT_IMP ("_p_key_getsp\n");
-};
+}
 
 /* Thread signal */
 int
@@ -708,7 +701,7 @@ __pthread_kill (pthread_t * thread, int sig)
 // unlock myself
   return rval;
 
-};
+}
 
 int
 __pthread_sigmask (int operation, const sigset_t * set, sigset_t * old_set)
@@ -728,7 +721,7 @@ __pthread_sigmask (int operation, const sigset_t * set, sigset_t * old_set)
 // unlock this myself
 
   return rval;
-};
+}
 
 /*  ID */
 pthread_t
@@ -741,13 +734,13 @@ __pthread_self ()
   ReleaseResourceLock (LOCK_THREAD_LIST, READ_LOCK, "__pthread_self");
   return (pthread_t) item->Id ();
 
-};
+}
 
 int
 __pthread_equal (pthread_t * t1, pthread_t * t2)
 {
   return (*t1 - *t2);
-};
+}
 
 /* Mutexes  */
 
@@ -762,7 +755,7 @@ __pthread_mutex_init (pthread_mutex_t * mutex, const pthread_mutexattr_t */*_att
 
   ReleaseResourceLock (LOCK_MUTEX_LIST, WRITE_LOCK | READ_LOCK, "__pthread_mutex_init");
   return 0;
-};
+}
 
 int
 __pthread_mutex_lock (pthread_mutex_t * mutex)
@@ -772,7 +765,7 @@ __pthread_mutex_lock (pthread_mutex_t * mutex)
   item->Lock ();
 
   return 0;
-};
+}
 
 int
 __pthread_mutex_trylock (pthread_mutex_t * mutex)
@@ -783,7 +776,7 @@ __pthread_mutex_trylock (pthread_mutex_t * mutex)
     return EBUSY;
 
   return 0;
-};
+}
 
 int
 __pthread_mutex_unlock (pthread_mutex_t * mutex)
@@ -793,7 +786,7 @@ __pthread_mutex_unlock (pthread_mutex_t * mutex)
   item->UnLock ();
 
   return 0;
-};
+}
 
 int
 __pthread_mutex_destroy (pthread_mutex_t * mutex)
@@ -810,7 +803,7 @@ __pthread_mutex_destroy (pthread_mutex_t * mutex)
 
   ReleaseResourceLock (LOCK_MUTEX_LIST, READ_LOCK | WRITE_LOCK, "__pthread_mutex_destroy");
   return 0;
-};
+}
 
 /* Semaphores */
 int
@@ -824,7 +817,7 @@ __sem_init (sem_t * sem, int pshared, unsigned int value)
 
   ReleaseResourceLock (LOCK_SEM_LIST, READ_LOCK | WRITE_LOCK, "__sem_init");
   return 0;
-};
+}
 
 int
 __sem_destroy (sem_t * sem)
@@ -841,7 +834,7 @@ __sem_destroy (sem_t * sem)
 
   ReleaseResourceLock (LOCK_SEM_LIST, READ_LOCK | WRITE_LOCK, "__sem_destroy");
   return 0;
-};
+}
 
 int
 __sem_wait (sem_t * sem)
@@ -851,7 +844,7 @@ __sem_wait (sem_t * sem)
   item->Wait ();
 
   return 0;
-};
+}
 
 int
 __sem_trywait (sem_t * sem)
@@ -862,7 +855,7 @@ __sem_trywait (sem_t * sem)
     return EAGAIN;
 
   return 0;
-};
+}
 
 int
 __sem_post (sem_t * sem)
@@ -872,7 +865,7 @@ __sem_post (sem_t * sem)
   item->Post ();
 
   return 0;
-};
+}
 
 
 #else
diff --git a/winsup/cygwin/thread.h b/winsup/cygwin/thread.h
index 0ef4725c5..999bd5ed8 100644
--- a/winsup/cygwin/thread.h
+++ b/winsup/cygwin/thread.h
@@ -110,8 +110,8 @@ struct __reent_t
 
 _reent *_reent_clib ();
 _winsup_t *_reent_winsup ();
-void SetResourceLock (int, int, const char *);
-void ReleaseResourceLock (int, int, const char *);
+void SetResourceLock (int, int, const char *) __attribute__ ((regparm(3)));
+void ReleaseResourceLock (int, int, const char *) __attribute__ ((regparm(3)));
 
 #ifdef _CYG_THREAD_FAILSAFE
 void AssertResourceOwner (int, int);
@@ -209,9 +209,7 @@ public:
   struct _winsup_t winsup_reent;
   ThreadItem mainthread;
 
-  void Init0 ();
-  void Init1 ();
-  void ClearReent ();
+  void Init (int);
 
   void ReleaseItem (MTitem *);
 
diff --git a/winsup/cygwin/times.cc b/winsup/cygwin/times.cc
index b8e715deb..bff40b612 100644
--- a/winsup/cygwin/times.cc
+++ b/winsup/cygwin/times.cc
@@ -19,7 +19,6 @@ details. */
 #include "cygerrno.h"
 #include "fhandler.h"
 #include "path.h"
-#include "thread.h"
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
diff --git a/winsup/cygwin/uinfo.cc b/winsup/cygwin/uinfo.cc
index 7057fd11e..e0c5d0726 100644
--- a/winsup/cygwin/uinfo.cc
+++ b/winsup/cygwin/uinfo.cc
@@ -18,7 +18,6 @@ details. */
 #include <stdlib.h>
 #include <wchar.h>
 #include <lm.h>
-#include "thread.h"
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
diff --git a/winsup/cygwin/winsup.h b/winsup/cygwin/winsup.h
index 2deee0e6a..bd1fd9b12 100644
--- a/winsup/cygwin/winsup.h
+++ b/winsup/cygwin/winsup.h
@@ -184,15 +184,15 @@ int __stdcall writable_directory (const char *file);
 int __stdcall stat_dev (DWORD, int, unsigned long, struct stat *);
 extern BOOL allow_ntsec;
 
-unsigned long __stdcall hash_path_name (unsigned long hash, const char *name);
-void __stdcall nofinalslash (const char *src, char *dst);
-extern "C" char *__stdcall rootdir (char *full_path);
+unsigned long __stdcall hash_path_name (unsigned long hash, const char *name) __attribute__ ((regparm(2)));
+void __stdcall nofinalslash (const char *src, char *dst) __attribute__ ((regparm(2)));
+extern "C" char *__stdcall rootdir (char *full_path) __attribute__ ((regparm(1)));
 
 /* String manipulation */
-char *__stdcall strccpy (char *s1, const char **s2, char c);
-int __stdcall strcasematch (const char *s1, const char *s2);
-int __stdcall strncasematch (const char *s1, const char *s2, size_t n);
-char *__stdcall strcasestr (const char *searchee, const char *lookfor);
+extern "C" char *__stdcall strccpy (char *s1, const char **s2, char c);
+extern "C" int __stdcall strcasematch (const char *s1, const char *s2) __attribute__ ((regparm(2)));
+extern "C" int __stdcall strncasematch (const char *s1, const char *s2, size_t n) __attribute__ ((regparm(3)));
+extern "C" char *__stdcall strcasestr (const char *searchee, const char *lookfor) __attribute__ ((regparm(2)));
 
 /* Time related */
 void __stdcall totimeval (struct timeval *dst, FILETIME * src, int sub, int flag);