* cygthread.cc (cygthread::stub): Properly establish _threadinfo environment.

(cygthread::stub2): New function.
(cygthread::simplestub): Ditto.
(cygthread::simplestub2): New function.
* cygthread.h (cygthread::stub2): Declare new function.
(cygthread::simplestub2): Ditto.
* cygtls.h (_threadinfo::call): Declare new function.
(_threadinfo::call2): Ditto.
* dcrt0.cc (dll_crt0_1): Accommodate new _threadinfo::init which doesn't return
pointer to tls.
(_dll_crt0): Remove obsolete DECLARE_TLS_STORAGE.
(dll_crt0): Ditto.
* exceptions.cc (_threadinfo::call): New function.
(_threadinfo::call2): Ditto.
(_threadinfo::init): Don't return pointer.
* thread.cc (pthread::thread_init_wrapper): Properly establish _threadinfo
environment.
(pthread::thread_init_wrapper2): New function.
* thread.h (pthread::thread_init_wrapper): Remove noreturn attribute
(pthread::thread_init_wrapper2): Declare new function.
* winbase.h: Remove obsolete code.

9 files changed, 80 insertions, 64 deletions

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 3d2a5dc..5f77fb3 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,28 @@
+2003-12-03  Christopher Faylor  <cgf@redhat.com>
+
+	* cygthread.cc (cygthread::stub): Properly establish _threadinfo
+	environment.
+	(cygthread::stub2): New function.
+	(cygthread::simplestub): Ditto.
+	(cygthread::simplestub2): New function.
+	* cygthread.h (cygthread::stub2): Declare new function.
+	(cygthread::simplestub2): Ditto.
+	* cygtls.h (_threadinfo::call): Declare new function.
+	(_threadinfo::call2): Ditto.
+	* dcrt0.cc (dll_crt0_1): Accommodate new _threadinfo::init which
+	doesn't return pointer to tls.
+	(_dll_crt0): Remove obsolete DECLARE_TLS_STORAGE.
+	(dll_crt0): Ditto.
+	* exceptions.cc (_threadinfo::call): New function.
+	(_threadinfo::call2): Ditto.
+	(_threadinfo::init): Don't return pointer.
+	* thread.cc (pthread::thread_init_wrapper): Properly establish
+	_threadinfo environment.
+	(pthread::thread_init_wrapper2): New function.
+	* thread.h (pthread::thread_init_wrapper): Remove noreturn attribute
+	(pthread::thread_init_wrapper2): Declare new function.
+	* winbase.h: Remove obsolete code.
+
 2003-12-02  Christopher Faylor  <cgf@redhat.com>
 
 	* Makefile.in: Change the way that -f options are appended to CFLAGS,
diff --git a/winsup/cygwin/cygthread.cc b/winsup/cygwin/cygthread.cc
index fa9781e..34111fd 100644
--- a/winsup/cygwin/cygthread.cc
+++ b/winsup/cygwin/cygthread.cc
@@ -15,6 +15,8 @@ details. */
 #include "sync.h"
 #include "cygerrno.h"
 #include "sigproc.h"
+#include "thread.h"
+#include "cygtls.h"
 
 #undef CloseHandle
 
@@ -30,13 +32,20 @@ bool NO_COPY cygthread::exiting;
 DWORD WINAPI
 cygthread::stub (VOID *arg)
 {
-  DECLARE_TLS_STORAGE;
+  _threadinfo::call (stub2, arg);
+  return 0;
+}
+
+void
+cygthread::stub2 (void *arg, void *)
+{
   exception_list except_entry;
 
   /* Initialize this thread's ability to respond to things like
      SIGSEGV or SIGFPE. */
   init_exceptions (&except_entry);
 
+
   cygthread *info = (cygthread *) arg;
   if (info->arg == cygself)
     {
@@ -91,7 +100,13 @@ cygthread::stub (VOID *arg)
 DWORD WINAPI
 cygthread::simplestub (VOID *arg)
 {
-  DECLARE_TLS_STORAGE;
+  _threadinfo::call (simplestub2, arg);
+  return 0;
+}
+
+void
+cygthread::simplestub2 (void *arg, void *)
+{
   exception_list except_entry;
 
   /* Initialize this thread's ability to respond to things like
diff --git a/winsup/cygwin/cygthread.h b/winsup/cygwin/cygthread.h
index b8566d4..a01719b 100644
--- a/winsup/cygwin/cygthread.h
+++ b/winsup/cygwin/cygthread.h
@@ -20,7 +20,9 @@ class cygthread
   bool is_freerange;
   static bool exiting;
   static DWORD WINAPI stub (VOID *);
+  static void stub2 (void *, void *);
   static DWORD WINAPI simplestub (VOID *);
+  static void simplestub2 (void *, void *);
   void terminate_thread ();
  public:
   static DWORD main_thread_id;
diff --git a/winsup/cygwin/cygtls.h b/winsup/cygwin/cygtls.h
index c0ab189..ec6087a 100644
--- a/winsup/cygwin/cygtls.h
+++ b/winsup/cygwin/cygtls.h
@@ -40,7 +40,9 @@ struct _threadinfo
   int sig;
   __stack_t *stackptr;
 
-  struct _threadinfo *init (void *, void * = NULL);
+  void init (void *);
+  static void call (void (*) (void *, void *), void *);
+  void call2 (void (*) (void *, void *), void *, void *);
   void remove ();
   void push (__stack_t, bool = false);
   __stack_t pop ();
diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc
index 1ca549e..a0af023 100644
--- a/winsup/cygwin/dcrt0.cc
+++ b/winsup/cygwin/dcrt0.cc
@@ -532,8 +532,9 @@ _threadinfo NO_COPY *_main_tls;
 static void
 dll_crt0_1 ()
 {
-  __uint64_t padding[CYGTLS_PADSIZE];
-  _main_tls = _my_tls.init (padding);
+  char padding[CYGTLS_PADSIZE];
+  _main_tls = &_my_tls;
+  _main_tls->init (padding);
 
   /* According to onno@stack.urc.tue.nl, the exception handler record must
      be on the stack.  */
@@ -838,7 +839,6 @@ initial_env ()
 extern "C" void __stdcall
 _dll_crt0 ()
 {
-  DECLARE_TLS_STORAGE;
   initial_env ();
   char zeros[sizeof (fork_info->zero)] = {0};
   static NO_COPY STARTUPINFO si;
@@ -907,7 +907,6 @@ _dll_crt0 ()
 void
 dll_crt0 (per_process *uptr)
 {
-  DECLARE_TLS_STORAGE;
   /* Set the local copy of the pointer into the user space. */
   if (uptr && uptr != user_data)
     {
diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc
index 6e5aa30..15a9eb1 100644
--- a/winsup/cygwin/exceptions.cc
+++ b/winsup/cygwin/exceptions.cc
@@ -147,8 +147,22 @@ _threadinfo::reset_exception ()
     }
 }
 
-_threadinfo *
-_threadinfo::init (void *, void *thread)
+void
+_threadinfo::call (void (*func) (void *, void *), void *arg)
+{
+  char buf[CYGTLS_PADSIZE];
+  _my_tls.call2 (func, arg, buf);
+}
+
+void
+_threadinfo::call2 (void (*func) (void *, void *), void *arg, void *buf)
+{
+  init (buf);
+  func (arg, buf);
+}
+
+void
+_threadinfo::init (void *)
 {
   memset (this, 0, sizeof (*this));
   stackptr = stack;
@@ -157,7 +171,6 @@ _threadinfo::init (void *, void *thread)
   _last_thread = this;
   set_state (false);
   errno_addr = &errno;
-  return this;
 }
 
 void
diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc
index cb99be0..a34cd84 100644
--- a/winsup/cygwin/thread.cc
+++ b/winsup/cygwin/thread.cc
@@ -1885,14 +1885,10 @@ __reent_t::init_clib (struct _reent& var)
   _clib = &var;
 };
 
-/* Pthreads */
-void *
-pthread::thread_init_wrapper (void *_arg)
+void
+pthread::thread_init_wrapper2 (void *arg, void *)
 {
-  // Setup the local/global storage of this thread
-  __uint64_t padding[CYGTLS_PADSIZE];
-  pthread *thread = (pthread *) _arg;
-  thread->cygtls = _my_tls.init (padding, &thread);
+  pthread *thread = (pthread *) arg;
   _my_tls.tid = thread;
 
   exception_list cygwin_except_entry;
@@ -1923,7 +1919,7 @@ pthread::thread_init_wrapper (void *_arg)
     system_printf ("local storage for thread isn't setup correctly");
 #endif
 
-  thread_printf ("started thread %p %p %p %p %p %p", _arg, &local_clib,
+  thread_printf ("started thread %p %p %p %p %p %p", arg, &local_clib,
 		 _impure_ptr, thread, thread->function, thread->arg);
 
   // call the user's thread
@@ -1932,6 +1928,14 @@ pthread::thread_init_wrapper (void *_arg)
   thread->exit (ret);
 }
 
+/* Pthreads */
+void
+pthread::thread_init_wrapper (void *arg)
+{
+  // calls thread_init_wrapper2.  Never returns.
+  _threadinfo::call (thread_init_wrapper2, arg);
+}
+
 bool
 pthread::is_good_object (pthread_t const *thread)
 {
diff --git a/winsup/cygwin/thread.h b/winsup/cygwin/thread.h
index b924957..ef0e59a 100644
--- a/winsup/cygwin/thread.h
+++ b/winsup/cygwin/thread.h
@@ -502,7 +502,8 @@ public:
   virtual void pop_cleanup_handler (int const execute);
 
   static pthread* self ();
-  static void *thread_init_wrapper (void *) __attribute__ ((noreturn));
+  static void thread_init_wrapper (void *);
+  static void thread_init_wrapper2 (void *, void *);
 
   virtual unsigned long getsequence_np();
 
diff --git a/winsup/cygwin/winbase.h b/winsup/cygwin/winbase.h
index 3cbdb18..3dbf116 100644
--- a/winsup/cygwin/winbase.h
+++ b/winsup/cygwin/winbase.h
@@ -56,49 +56,4 @@ ilockcmpexch (long *t, long v, long c)
 #define InterlockedExchange ilockexch
 #undef InterlockedCompareExchange
 #define InterlockedCompareExchange ilockcmpexch
-
-// extern char * volatile *__stackbase __asm__ ("%fs:4");
-#ifndef EXPCGf
-#define DECLARE_TLS_STORAGE do {} while (0)
-#else
-#define DECLARE_TLS_STORAGE char **tls[4096] __attribute__ ((unused))
-extern long tls_ix;
-
-extern __inline__ DWORD
-my_tlsalloc ()
-{
-  DWORD n = ilockdecr (&tls_ix);
-  __stackbase[tls_ix] = NULL;
-  return n;
-}
-
-extern __inline__ BOOL
-my_tlssetvalue (DWORD ix, void *val)
-{
-  __stackbase[ix] = (char *) val;
-  return 1;
-}
-
-extern __inline__ void *
-my_tlsgetvalue (DWORD ix)
-{
-  return __stackbase[ix];
-}
-
-extern __inline__ BOOL
-my_tlsfree (DWORD ix)
-{
-  /* nothing for now */
-  return 1;
-}
-
-#undef TlsAlloc
-#define TlsAlloc my_tlsalloc
-#undef TlsGetValue
-#define TlsGetValue my_tlsgetvalue
-#undef TlsSetValue
-#define TlsSetValue my_tlssetvalue
-#undef TlsFree
-#define TlsFree my_tlsfree
-#endif /*EXPCGF*/
 #endif /*_WINBASE2_H*/