cygwin patch added,

parse crash fixed
c++ line comments handled in SDF parser

2 files changed, 260 insertions, 55 deletions

diff --git a/translate/grt/config/pthread.c b/translate/grt/config/pthread.c
index d42a753..f619ead 100644
--- a/translate/grt/config/pthread.c
+++ b/translate/grt/config/pthread.c
@@ -28,6 +28,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <setjmp.h>
+#include <assert.h>
 
 //#define INFO printf
 #define INFO (void)
@@ -35,10 +36,14 @@
 // GHDL names an endless loop calling FUNC with ARG a 'stack'
 // at a given time, only one stack may be 'executed'
 typedef struct 
-{	pthread_t           thread;         // stack's thread
-	pthread_mutex_t     mutex;          // mutex to suspend/resume thread
-	void                (*Func)(void*); // stack's FUNC
-	void*               Arg;            // ARG passed to FUNC
+{	
+  pthread_t           thread;         // stack's thread
+  pthread_mutex_t     mutex;          // mutex to suspend/resume thread
+#if defined(__CYGWIN__)
+  pthread_mutexattr_t mxAttr;
+#endif
+  void                (*Func)(void*); // stack's FUNC
+  void*               Arg;            // ARG passed to FUNC
 } Stack_Type_t, *Stack_Type;
 
 static Stack_Type_t      main_stack_context;
@@ -51,40 +56,56 @@ void grt_stack_init(void)
 // This may adjust stack sizes.
 // Must be called after grt.options.decode.
 // => procedure Stack_Init;
-{	INFO("grt_stack_init\n");
-	INFO("  main_stack_context=0x%08x\n", &main_stack_context);
+{
+  int res;
+  INFO("grt_stack_init\n");
+  INFO("  main_stack_context=0x%08x\n", &main_stack_context);
 	
-	pthread_mutex_init(&(main_stack_context.mutex), NULL);
 
-	// lock the mutex, as we are currently running
-	pthread_mutex_lock(&(main_stack_context.mutex));
+#if defined(__CYGWIN__)
+  res = pthread_mutexattr_init (&main_stack_context.mxAttr);
+  assert (res == 0);
+  res = pthread_mutexattr_settype (&main_stack_context.mxAttr,
+				   PTHREAD_MUTEX_DEFAULT);
+  assert (res == 0);
+  res = pthread_mutex_init (&main_stack_context.mutex,
+			    &main_stack_context.mxAttr);
+  assert (res == 0);
+#else
+  res = pthread_mutex_init (&main_stack_context.mutex, NULL);
+  assert (res == 0);
+#endif
+  // lock the mutex, as we are currently running
+  res = pthread_mutex_lock (&main_stack_context.mutex);
+  assert (res == 0);
 	
-	current = &main_stack_context;
+  current = &main_stack_context;
 
-	grt_set_main_stack (&main_stack_context);
+  grt_set_main_stack (&main_stack_context);
 }
 
 //----------------------------------------------------------------------------
 static void* grt_stack_loop(void* pv_myStack)
 {
-	Stack_Type myStack= (Stack_Type)pv_myStack;
+  Stack_Type myStack= (Stack_Type)pv_myStack;
 
-	INFO("grt_stack_loop\n");
+  INFO("grt_stack_loop\n");
 	
-	INFO("  myStack=0x%08x\n", myStack);
+  INFO("  myStack=0x%08x\n", myStack);
 
-	// block until mutex becomes available again.
-	// this happens when this stack is enabled for the first time
-	pthread_mutex_lock(&(myStack->mutex));
+  // block until mutex becomes available again.
+  // this happens when this stack is enabled for the first time
+  pthread_mutex_lock(&(myStack->mutex));
 	
-	// run stack's function in endless loop
-	while(1)
-	{	INFO("  call 0x%08x with 0x%08x\n", myStack->Func, myStack->Arg);
-		myStack->Func(myStack->Arg);
-	}
+  // run stack's function in endless loop
+  while(1)
+    {
+      INFO("  call 0x%08x with 0x%08x\n", myStack->Func, myStack->Arg);
+      myStack->Func(myStack->Arg);
+    }
 	
-	// we never get here...
-	return 0;
+  // we never get here...
+  return 0;
 }
 
 //----------------------------------------------------------------------------
@@ -93,29 +114,41 @@ Stack_Type grt_stack_create(void* Func, void* Arg)
 // an argument ARG.
 // => function Stack_Create (Func : Address; Arg : Address) return Stack_Type;
 {
-  	Stack_Type newStack;
+  Stack_Type newStack;
+  int res;
 
-	INFO("grt_stack_create\n");
-	INFO("  call 0x%08x with 0x%08x\n", Func, Arg);
+  INFO("grt_stack_create\n");
+  INFO("  call 0x%08x with 0x%08x\n", Func, Arg);
 			
-	newStack= malloc(sizeof(Stack_Type_t));
-	
-	// init function and argument
-	newStack->Func= Func;
-	newStack->Arg=  Arg;
+  newStack = malloc (sizeof(Stack_Type_t));
 	
-	// create mutex
-	pthread_mutex_init(&(newStack->mutex), NULL);
+  // init function and argument
+  newStack->Func = Func;
+  newStack->Arg = Arg;
 	
-	// block the mutex, so that thread will blocked in grt_stack_loop
-	pthread_mutex_lock(&(newStack->mutex));
+  // create mutex
+#if defined(__CYGWIN__)
+  res = pthread_mutexattr_init (&newStack->mxAttr);
+  assert (res == 0);
+  res = pthread_mutexattr_settype (&newStack->mxAttr, PTHREAD_MUTEX_DEFAULT);
+  assert (res == 0);
+  res = pthread_mutex_init (&newStack->mutex, &newStack->mxAttr);
+  assert (res == 0);
+#else
+  res = pthread_mutex_init (&newStack->mutex, NULL);
+  assert (res == 0);
+#endif
 	
-	INFO("  newStack=0x%08x\n", newStack);
+  // block the mutex, so that thread will blocked in grt_stack_loop
+  res = pthread_mutex_lock (&newStack->mutex);
+  assert (res == 0);
+  
+  INFO("  newStack=0x%08x\n", newStack);
 	
-	// create thread, which executes grt_stack_loop
-	pthread_create(&(newStack->thread), NULL, grt_stack_loop, newStack); 
+  // create thread, which executes grt_stack_loop
+  pthread_create (&newStack->thread, NULL, grt_stack_loop, newStack); 
 	
-	return newStack;
+  return newStack;
 }
 
 static int need_longjmp;
@@ -127,30 +160,35 @@ void grt_stack_switch(Stack_Type To, Stack_Type From)
 // Resume stack TO and save the current context to the stack pointed by
 // CUR.
 // => procedure Stack_Switch (To : Stack_Type; From : Stack_Type);
-{	INFO("grt_stack_switch\n");
-	INFO("  from 0x%08x to 0x%08x\n", From, To);
+{	
+  int res;
+  INFO("grt_stack_switch\n");
+  INFO("  from 0x%08x to 0x%08x\n", From, To);
 
-	current = To;
+  current = To;
 
-	// unlock 'To' mutex. this will make the other thread either
-	// - starts for first time in grt_stack_loop
-	// - resumes at lock below
-	pthread_mutex_unlock(&(To->mutex));
+  // unlock 'To' mutex. this will make the other thread either
+  // - starts for first time in grt_stack_loop
+  // - resumes at lock below
+  res = pthread_mutex_unlock (&To->mutex);
+  assert (res == 0);
 		
-	// block until 'From' mutex becomes available again
-	// as we are running, our mutex is locked and we block here
-	// when stacks are switched, with above unlock, we may proceed
-	pthread_mutex_lock(&(From->mutex));
-
-	if (From == &main_stack_context && need_longjmp != 0)
-	  longjmp (run_env, need_longjmp);
+  // block until 'From' mutex becomes available again
+  // as we are running, our mutex is locked and we block here
+  // when stacks are switched, with above unlock, we may proceed
+  res = pthread_mutex_lock (&From->mutex);
+  assert (res == 0);
+
+  if (From == &main_stack_context && need_longjmp != 0)
+    longjmp (run_env, need_longjmp);
 }
 
 //----------------------------------------------------------------------------
 void grt_stack_delete(Stack_Type Stack)
 // Delete stack STACK, which must not be currently executed.
 // => procedure Stack_Delete (Stack : Stack_Type);
-{	INFO("grt_stack_delete\n");
+{	
+  INFO("grt_stack_delete\n");
 }
 
 void
diff --git a/translate/grt/config/win32thr.c b/translate/grt/config/win32thr.c
new file mode 100644
index 0000000..bcebc49
--- /dev/null
+++ b/translate/grt/config/win32thr.c
@@ -0,0 +1,167 @@
+/*  GRT stack implementation for Win32
+    Copyright (C) 2004, 2005 Felix Bertram.
+
+    GHDL is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2, or (at your option) any later
+    version.
+
+    GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
+    WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with GCC; see the file COPYING.  If not, write to the Free
+    Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+    02111-1307, USA.
+*/
+//-----------------------------------------------------------------------------
+// Project:     GHDL - VHDL Simulator
+// Description: Win32 port of stacks package
+// Note:        Tristan's original i386/Linux used assembly-code 
+//              to manually switch stacks for performance reasons.
+// History:     2004feb09, FB, created.
+//-----------------------------------------------------------------------------
+
+#include <windows.h>
+//#include <pthread.h>
+//#include <stdlib.h>
+//#include <stdio.h>
+
+
+//#define INFO printf
+#define INFO (void)
+
+// GHDL names an endless loop calling FUNC with ARG a 'stack'
+// at a given time, only one stack may be 'executed'
+typedef struct 
+{	HANDLE              thread;         // stack's thread
+	HANDLE              mutex;          // mutex to suspend/resume thread
+	void                (*Func)(void*); // stack's FUNC
+	void*               Arg;            // ARG passed to FUNC
+} Stack_Type_t, *Stack_Type;
+
+
+static Stack_Type_t      main_stack_context;
+extern void grt_set_main_stack (Stack_Type_t *stack);
+
+//------------------------------------------------------------------------------
+void grt_stack_init(void)
+// Initialize the stacks package.
+// This may adjust stack sizes.
+// Must be called after grt.options.decode.
+// => procedure Stack_Init;
+{	INFO("grt_stack_init\n");
+	INFO("  main_stack_context=0x%08x\n", &main_stack_context);
+
+	// create event. reset event, as we are currently running
+	main_stack_context.mutex = CreateEvent(NULL,  // lpsa
+	                                       FALSE, // fManualReset
+	                                       FALSE, // fInitialState
+	                                       NULL); // lpszEventName
+
+	grt_set_main_stack (&main_stack_context);
+}
+
+//------------------------------------------------------------------------------
+static unsigned long __stdcall grt_stack_loop(void* pv_myStack)
+{
+	Stack_Type myStack= (Stack_Type)pv_myStack;
+
+	INFO("grt_stack_loop\n");
+	
+	INFO("  myStack=0x%08x\n", myStack);
+
+	// block until event becomes set again.
+	// this happens when this stack is enabled for the first time
+	WaitForSingleObject(myStack->mutex, INFINITE);
+	
+	// run stack's function in endless loop
+	while(1)
+	{	INFO("  call 0x%08x with 0x%08x\n", myStack->Func, myStack->Arg);
+		myStack->Func(myStack->Arg);
+	}
+	
+	// we never get here...
+	return 0;
+}
+
+//------------------------------------------------------------------------------
+Stack_Type grt_stack_create(void* Func, void* Arg) 
+// Create a new stack, which on first execution will call FUNC with
+// an argument ARG.
+// => function Stack_Create (Func : Address; Arg : Address) return Stack_Type;
+{  	Stack_Type newStack;
+	DWORD      m_IDThread; // Thread's ID (dummy)
+
+	INFO("grt_stack_create\n");
+	INFO("  call 0x%08x with 0x%08x\n", Func, Arg);
+			
+	newStack= malloc(sizeof(Stack_Type_t));
+	
+	// init function and argument
+	newStack->Func= Func;
+	newStack->Arg=  Arg;
+	
+	// create event. reset event, so that thread will blocked in grt_stack_loop
+	newStack->mutex= CreateEvent(NULL,  // lpsa
+	                             FALSE, // fManualReset
+	                             FALSE, // fInitialState
+	                             NULL); // lpszEventName
+	
+	INFO("  newStack=0x%08x\n", newStack);
+	
+	// create thread, which executes grt_stack_loop
+	newStack->thread= CreateThread(NULL,           // lpsa
+	                               0,              // cbStack
+	                               grt_stack_loop, // lpStartAddr
+	                               newStack,       // lpvThreadParm
+	                               0,              // fdwCreate
+	                               &m_IDThread);   // lpIDThread
+	
+	return newStack;
+}
+
+//------------------------------------------------------------------------------
+void grt_stack_switch(Stack_Type To, Stack_Type From)
+// Resume stack TO and save the current context to the stack pointed by
+// CUR.
+// => procedure Stack_Switch (To : Stack_Type; From : Stack_Type);
+{	INFO("grt_stack_switch\n");
+	INFO("  from 0x%08x to 0x%08x\n", From, To);
+	
+	// set 'To' event. this will make the other thread either
+	// - start for first time in grt_stack_loop
+	// - resume at WaitForSingleObject below
+	SetEvent(To->mutex);
+		
+	// block until 'From' event becomes set again
+	// as we are running, our event is reset and we block here
+	// when stacks are switched, with above SetEvent, we may proceed
+	WaitForSingleObject(From->mutex, INFINITE);
+}
+
+//------------------------------------------------------------------------------
+void grt_stack_delete(Stack_Type Stack)
+// Delete stack STACK, which must not be currently executed.
+// => procedure Stack_Delete (Stack : Stack_Type);
+{	INFO("grt_stack_delete\n");
+}
+
+//----------------------------------------------------------------------------
+#ifndef WITH_GNAT_RUN_TIME
+void __gnat_raise_storage_error(void)
+{
+   abort ();
+}
+
+void __gnat_raise_program_error(void)
+{
+   abort ();
+}
+#endif
+
+//----------------------------------------------------------------------------
+// end of file
+