Patch rtems-rc-20000104-16.diff from Ralf Corsepius <corsepiu@faw.uni-ulm.de>

that converts the libbsp/i386 subdirectory to full automake.

15 files changed, 142 insertions, 118 deletions

diff --git a/c/src/lib/libbsp/m68k/dmv152/startup/bspstart.c b/c/src/lib/libbsp/m68k/dmv152/startup/bspstart.c
index 9fea220c0c..be4acce753 100644
--- a/c/src/lib/libbsp/m68k/dmv152/startup/bspstart.c
+++ b/c/src/lib/libbsp/m68k/dmv152/startup/bspstart.c
@@ -56,14 +56,10 @@ void bsp_libc_init( void *, unsigned32, int );
  
 void bsp_pretasking_hook(void)
 {
-    extern int end;
-    rtems_unsigned32        heap_start;
+    extern void             *_HeapStart;
+    extern rtems_unsigned32  _HeapSize;
 
-    heap_start = (rtems_unsigned32) &end;
-    if (heap_start & (CPU_ALIGNMENT-1))
-        heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
-
-    bsp_libc_init((void *) heap_start, 64 * 1024, 0);
+    bsp_libc_init( &_HeapStart, _HeapSize, 0 );
  
 #ifdef RTEMS_DEBUG
     rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
diff --git a/c/src/lib/libbsp/m68k/efi332/include/bsp.h b/c/src/lib/libbsp/m68k/efi332/include/bsp.h
index 81e93ebeea..6e5ffea7d7 100644
--- a/c/src/lib/libbsp/m68k/efi332/include/bsp.h
+++ b/c/src/lib/libbsp/m68k/efi332/include/bsp.h
@@ -72,11 +72,11 @@ extern "C" {
 
 /* externals */
 
-extern char _endtext[];
-extern char _sdata[];
+extern char _etext[];
+extern char _copy_start[];
 extern char _edata[];
-extern char __bss_start[];
-extern char _end[];
+extern char _bss_start[];
+extern char end[];
 extern char _copy_data_from_rom[];
 extern char __end_of_ram[];
 
diff --git a/c/src/lib/libbsp/m68k/efi332/start/start.c b/c/src/lib/libbsp/m68k/efi332/start/start.c
index ef7f2beffd..fa48e03ae2 100644
--- a/c/src/lib/libbsp/m68k/efi332/start/start.c
+++ b/c/src/lib/libbsp/m68k/efi332/start/start.c
@@ -31,7 +31,7 @@ void  dumby_start() {
   asm volatile ( "oriw  #0x0700, %sr;
                   moveal #M68Kvec, %a0;
                   movec %a0, %vbr;
-                  movel  #_end, %d0;
+                  movel  #end, %d0;
                   addl   " STACK_SIZE ",%d0;
                   movel  %d0,%sp;
                   movel  %d0,%a6"
@@ -198,8 +198,8 @@ void  dumby_start() {
    * needed) and "zero-ing" the .bss section.
    */
   {
-    register char *src = _endtext;
-    register char *dst = _sdata;
+    register char *src = _etext;
+    register char *dst = _copy_start;
 
     if (_copy_data_from_rom)
       /* ROM has data at end of text; copy it. */
@@ -207,7 +207,7 @@ void  dumby_start() {
 	*dst++ = *src++;
     
     /* Zero bss */
-    for (dst = __bss_start; dst< _end; dst++)
+    for (dst = _bss_start; dst< end; dst++)
       *dst = 0;
   }
 
diff --git a/c/src/lib/libbsp/m68k/efi68k/include/bsp.h b/c/src/lib/libbsp/m68k/efi68k/include/bsp.h
index 62d74f77f3..eea1ea6348 100644
--- a/c/src/lib/libbsp/m68k/efi68k/include/bsp.h
+++ b/c/src/lib/libbsp/m68k/efi68k/include/bsp.h
@@ -72,11 +72,11 @@ extern "C" {
 
 /* externals */
 
-extern char _endtext[];
-extern char _sdata[];
+extern char _etext[];
+extern char _copy_start[];
 extern char _edata[];
-extern char __bss_start[];
-extern char _end[];
+extern char _bss_start[];
+extern char end[];
 extern char _copy_data_from_rom[];
 extern char __end_of_ram[];
 
diff --git a/c/src/lib/libbsp/m68k/efi68k/start/start.c b/c/src/lib/libbsp/m68k/efi68k/start/start.c
index f63381c57f..ea6973ee11 100644
--- a/c/src/lib/libbsp/m68k/efi68k/start/start.c
+++ b/c/src/lib/libbsp/m68k/efi68k/start/start.c
@@ -30,7 +30,7 @@ void  boot_card();
 
   /* disable interrupts, load stack pointer */
   asm volatile ( "oriw  #0x0700, %sr;
-                  movel  #_end, %d0;
+                  movel  #end, %d0;
                   addl   " STACK_SIZE ",%d0;
                   movel  %d0,%sp;
                   link %a6, #0"
@@ -40,8 +40,8 @@ void  boot_card();
    * needed) and "zero-ing" the .bss section.
    */
   {
-    register char *src = _endtext;
-    register char *dst = _sdata;
+    register char *src = _etext;
+    register char *dst = _copy_start;
 
     if (_copy_data_from_rom)
       /* ROM has data at end of text; copy it. */
@@ -49,7 +49,7 @@ void  boot_card();
 	*dst++ = *src++;
     
     /* Zero bss */
-    for (dst = __bss_start; dst< _end; dst++)
+    for (dst = _bss_start; dst< end; dst++)
       *dst = 0;
   }
 
diff --git a/c/src/lib/libbsp/m68k/gen68302/start/start.S b/c/src/lib/libbsp/m68k/gen68302/start/start.S
index 5e46b06edf..a3dd257fe7 100644
--- a/c/src/lib/libbsp/m68k/gen68302/start/start.S
+++ b/c/src/lib/libbsp/m68k/gen68302/start/start.S
@@ -197,15 +197,15 @@ cpy_Bad1:	move.l	d1,(a0)+
         | zero out uninitialized data area
         |
 zerobss:
-        moveal  # SYM (end),a0                | find end of .bss
-        moveal  # SYM (bss_start),a1          | find beginning of .bss
+        moveal  # SYM (_end),a0                | find end of .bss
+        moveal  # SYM (_bss_start),a1          | find beginning of .bss
         moveq   #0,d0
 
 loop:   movel   d0,a1@+                | to zero out uninitialized
         cmpal   a0,a1
         jlt     loop                    | loop until _end reached
 
-        movel   # SYM (end),d0               | d0 = end of bss/start of heap
+        movel   # SYM (_end),d0               | d0 = end of bss/start of heap
         addl    # SYM (heap_size),d0          | d0 = end of heap
         movel   d0, SYM (stack_start)  | Save for brk() routine
         addl    # SYM (stack_size),d0         | make room for stack
diff --git a/c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c b/c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c
index ac7666d1bd..ae5f6774df 100644
--- a/c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c
+++ b/c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c
@@ -56,10 +56,10 @@ void bsp_libc_init( void *, unsigned32, int );
  
 void bsp_pretasking_hook(void)
 {
-    extern int end;
+    extern int _end;
     rtems_unsigned32        heap_start;
 
-    heap_start = (rtems_unsigned32) &end;
+    heap_start = (rtems_unsigned32) &_end;
     if (heap_start & (CPU_ALIGNMENT-1))
         heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
 
diff --git a/c/src/lib/libbsp/m68k/gen68340/start/start.S b/c/src/lib/libbsp/m68k/gen68340/start/start.S
index 43b4186eaf..3569118a8b 100644
--- a/c/src/lib/libbsp/m68k/gen68340/start/start.S
+++ b/c/src/lib/libbsp/m68k/gen68340/start/start.S
@@ -501,8 +501,8 @@ sync_wait349:
 	/*--------------------------------------------------------*/
 	/* -- copy to address of the 68349 initialization code -- */
 
-	lea.l		_copy_start(%pc),crt0_ptr3
-	lea.l		_copy_end(%pc),crt0_ptr4
+	lea.l		_copy_start_code(%pc),crt0_ptr3
+	lea.l		_copy_end_code(%pc),crt0_ptr4
 	move.l		crt0_ptr4,crt0_temp
 	sub.l		crt0_ptr3,crt0_temp
 	add.l		#3,crt0_temp				| adjust to next long word
@@ -518,7 +518,7 @@ _copy_loop:
 	/*------------------------------------*/
 	/* -- start of initialization code -- */
 
-_copy_start:
+_copy_start_code:
 	bra.l		_begin_68349_init
 
 	/*----------------------------------------------------------*/
@@ -709,7 +709,7 @@ _init_cache_end:
 
 	jmp.l		(_fill_test)				| must be absolute long
 
-_copy_end:
+_copy_end_code:
 
 /*-------------------------------------------------
   initialization code for the 68340 board
@@ -812,11 +812,11 @@ _dont_fill:
  */
 	PUBLIC (_CopyDataClearBSSAndStart)
 SYM(_CopyDataClearBSSAndStart):
-	lea	copy_start,a0					| Get start of DATA in RAM
-	lea	SYM(etext),a2					| Get start of DATA in ROM
+	lea	SYM(_copy_start),a0				| Get start of DATA in RAM
+	lea	SYM(_etext),a2					| Get start of DATA in ROM
 	cmpl	a0,a2						| Are they the same?
 	beq.s	NOCOPY						| Yes, no copy necessary
-	lea	copy_end,a1					| Get end of DATA in RAM
+	lea	SYM(_copy_end),a1				| Get end of DATA in RAM
 	bra.s	COPYLOOPTEST					| Branch into copy loop
 COPYLOOP:
 	movel	a2@+,a0@+					| Copy word from ROM to RAM
@@ -825,8 +825,8 @@ COPYLOOPTEST:
 	bcs.s	COPYLOOP					| No, skip
 NOCOPY:
 
-	lea	clear_start,a0					| Get start of BSS
-	lea	clear_end,a1					| Get end of BSS
+	lea	_clear_start,a0					| Get start of BSS
+	lea	_clear_end,a1					| Get end of BSS
 	clrl	d0						| Value to set
 	bra.s	ZEROLOOPTEST					| Branch into clear loop
 ZEROLOOP:
@@ -835,7 +835,7 @@ ZEROLOOPTEST:
 	cmpl	a1,a0						| Done?
 	bcs.s	ZEROLOOP					| No, skip
 
-	movel	#stack_init,a7					| set master stack pointer
+	movel	#_stack_init,a7					| set master stack pointer
 	movel	d0,a7@-						| environp
 	movel	d0,a7@-						| argv
 	movel	d0,a7@-						| argc
diff --git a/c/src/lib/libbsp/m68k/gen68360/start/start.S b/c/src/lib/libbsp/m68k/gen68360/start/start.S
index 4a10e7748c..c3110c9780 100644
--- a/c/src/lib/libbsp/m68k/gen68360/start/start.S
+++ b/c/src/lib/libbsp/m68k/gen68360/start/start.S
@@ -394,7 +394,7 @@ ZEROLOOPTEST:
 	cmpl	a1,a0			| Done?
 	bcs.s	ZEROLOOP		| No, skip
 
-	movel	#stack_init,a7		| set master stack pointer
+	movel	#_stack_init,a7		| set master stack pointer
 	pea	env			| envp
 	pea	arg			| argv
 	movel	d0,a7@-			| argc
diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/Makefile.in b/c/src/lib/libbsp/m68k/gen68360/startup/Makefile.in
index 602d11b39c..771c89f5cb 100644
--- a/c/src/lib/libbsp/m68k/gen68360/startup/Makefile.in
+++ b/c/src/lib/libbsp/m68k/gen68360/startup/Makefile.in
@@ -42,7 +42,7 @@ $(INSTALLDIRS):
 # (OPTIONAL) Add local stuff here using +=
 #
 
-DEFINES +=
+DEFINES += -DUSE_INIT_FINI
 CPPFLAGS +=
 CFLAGS +=
 
diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp
index e89ea38e86..6661fc2c2a 100644
--- a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp
+++ b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp
@@ -1,9 +1,9 @@
 /*
  * This file contains GNU linker directives for a generic MC68360 board.
- * Variations in hardware type and dynamic memory size can be made
- * by overriding some values with linker command-line arguments.
+ * Variations in memory size and allocation can be made by
+ * overriding some values with linker command-line arguments.
  *
- * These linker directives are for producing a PROM version.
+ * These linker directives are for producing a bootstrap PROM version.
  * The data segment is placed at the end of the text segment in the PROM.
  * The start-up code takes care of copying this region to RAM.
  *
@@ -11,15 +11,12 @@
  * University of Saskatchewan
  * Saskatoon, Saskatchewan, CANADA
  * eric@skatter.usask.ca
- *
+ * 
  *  $Id$
  */
 
 /*
  * Declare some sizes.
- * XXX: The assignment of ". += XyzSize;" fails in older gld's if the
- *      number used there is not constant.  If this happens to you, edit
- *      the lines marked XXX below to use a constant value.
  */
 HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
 StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
@@ -43,7 +40,6 @@ SECTIONS {
          */
         rom : {
                 _RomBase = .;
-                __RomBase = .;
         } >rom
 
         /*
@@ -51,44 +47,66 @@ SECTIONS {
          */
         ram : {
                 _RamBase = .;
-                __RamBase = .;
         } >ram
 
         /*
          * Text, data and bss segments
          */
-        .text : AT (0x00000000) {
-                CREATE_OBJECT_SYMBOLS
+        .text : AT(0x0) {
                 *(.text)
-                . = ALIGN (16);
 
-		*(.eh_fram)
-		. = ALIGN (16);
+		/*
+		 * C++ constructors/destructors
+		 */
+		*(.gnu.linkonce.t.*)
 
 		/*
-		 * C++ constructors
+		 * Initialization and finalization code.
 		 */
-		__CTOR_LIST__ = .;
-		LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+		PROVIDE (_init = .);
+		*crti.o(.init)
+		*(.init)
+		*crtn.o(.init)
+		PROVIDE (_fini = .);
+		*crti.o(.fini)
+		*(.fini)
+		*crtn.o(.fini)
+
+		/*
+		 * C++ constructors/destructors
+		 */
+		. = ALIGN (16);
+		*crtbegin.o(.ctors)
 		*(.ctors)
-		LONG(0)
-		__CTOR_END__ = .;
-		__DTOR_LIST__ = .;
-		LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+		*crtend.o(.ctors)
+		*crtbegin.o(.dtors)
 		*(.dtors)
-		LONG(0)
-		__DTOR_END__ = .;
+		*crtend.o(.dtors)
 
-                . = ALIGN (16);
+		/*
+		 * Exception frame info
+		 */
+		. = ALIGN (16);
+		*(.eh_frame)
 
-                etext = .;
-                _etext = .;
-        } >rom 
+		/*
+		 * Read-only data
+		 */
+		. = ALIGN (16);
+		_rodata_start = . ;
+		*(.rodata)
+		*(.gnu.linkonce.r*)
+
+                 . = ALIGN (16);
+                PROVIDE (etext = .);
+        } >rom
         .data : AT(SIZEOF(.text)) {
                 copy_start = .;
                 *(.data)
+		*(.gnu.linkonce.d*)
+		*(.gcc_except_table)
                 . = ALIGN (16);
-                _edata = .;
+                PROVIDE (_edata = .);
                 copy_end = .;
         } >myram
         .bss : {
@@ -99,20 +117,16 @@ SECTIONS {
                 *(.bss)
                 *(COMMON)
                 . = ALIGN (16);
-                _end = .;
+                PROVIDE (end = .);
 
                 _HeapStart = .;
-                __HeapStart = .;
-                . += HeapSize;  /* XXX -- Old gld can't handle this */
-                . += StackSize; /* XXX -- Old gld can't handle this */
-                /* . += 0x10000; */ /* HeapSize for old gld */
-                /* . += 0x1000;  */ /* StackSize for old gld */
+                . += HeapSize;
+                . += StackSize;
                 . = ALIGN (16);
                 stack_init = .;
                 clear_end = .;
 
                 _WorkspaceBase = .;
-                __WorkspaceBase = .;
         } >myram
 
         /*
diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom
index b816761852..522bea54ca 100644
--- a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom
+++ b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom
@@ -1,7 +1,7 @@
 /*
  * This file contains GNU linker directives for a generic MC68360 board.
- * Variations in hardware type and dynamic memory size can be made
- * by overriding some values with linker command-line arguments.
+ * Variations in memory size and allocation can be made by
+ * overriding some values with linker command-line arguments.
  *
  * These linker directives are for producing a PROM version.
  * The data segment is placed at the end of the text segment in the PROM.
@@ -11,15 +11,12 @@
  * University of Saskatchewan
  * Saskatoon, Saskatchewan, CANADA
  * eric@skatter.usask.ca
- *
+ * 
  *  $Id$
  */
 
 /*
  * Declare some sizes.
- * XXX: The assignment of ". += XyzSize;" fails in older gld's if the
- *      number used there is not constant.  If this happens to you, edit
- *      the lines marked XXX below to use a constant value.
  */
 HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
 StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
@@ -42,7 +39,6 @@ SECTIONS {
          */
         rom : {
                 _RomBase = .;
-                __RomBase = .;
         } >rom
 
         /*
@@ -50,44 +46,66 @@ SECTIONS {
          */
         ram : {
                 _RamBase = .;
-                __RamBase = .;
         } >ram
 
         /*
          * Text, data and bss segments
          */
-        .text : AT (0x00000000) {
-                CREATE_OBJECT_SYMBOLS
+        .text : AT(0x0) {
                 *(.text)
-                . = ALIGN (16);
 
-		*(.eh_fram)
-		. = ALIGN (16);
+		/*
+		 * C++ constructors/destructors
+		 */
+		*(.gnu.linkonce.t.*)
 
 		/*
-		 * C++ constructors
+		 * Initialization and finalization code.
 		 */
-		__CTOR_LIST__ = .;
-		LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+		PROVIDE (_init = .);
+		*crti.o(.init)
+		*(.init)
+		*crtn.o(.init)
+		PROVIDE (_fini = .);
+		*crti.o(.fini)
+		*(.fini)
+		*crtn.o(.fini)
+
+		/*
+		 * C++ constructors/destructors
+		 */
+		. = ALIGN (16);
+		*crtbegin.o(.ctors)
 		*(.ctors)
-		LONG(0)
-		__CTOR_END__ = .;
-		__DTOR_LIST__ = .;
-		LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+		*crtend.o(.ctors)
+		*crtbegin.o(.dtors)
 		*(.dtors)
-		LONG(0)
-		__DTOR_END__ = .;
+		*crtend.o(.dtors)
 
-                . = ALIGN (16);
+		/*
+		 * Exception frame info
+		 */
+		. = ALIGN (16);
+		*(.eh_frame)
 
-                etext = .;
-                _etext = .;
-        } >rom 
+		/*
+		 * Read-only data
+		 */
+		. = ALIGN (16);
+		_rodata_start = . ;
+		*(.rodata)
+		*(.gnu.linkonce.r*)
+
+                 . = ALIGN (16);
+                PROVIDE (etext = .);
+        } >rom
         .data : AT(SIZEOF(.text)) {
                 copy_start = .;
                 *(.data)
+		*(.gnu.linkonce.d*)
+		*(.gcc_except_table)
                 . = ALIGN (16);
-                _edata = .;
+                PROVIDE (_edata = .);
                 copy_end = .;
         } >ram
         .bss : {
@@ -98,20 +116,16 @@ SECTIONS {
                 *(.bss)
                 *(COMMON)
                 . = ALIGN (16);
-                _end = .;
+                PROVIDE (end = .);
 
                 _HeapStart = .;
-                __HeapStart = .;
-                . += HeapSize;  /* XXX -- Old gld can't handle this */
-                . += StackSize; /* XXX -- Old gld can't handle this */
-                /* . += 0x10000; */ /* HeapSize for old gld */
-                /* . += 0x1000;  */ /* StackSize for old gld */
+                . += HeapSize;
+                . += StackSize;
                 . = ALIGN (16);
                 stack_init = .;
                 clear_end = .;
 
                 _WorkspaceBase = .;
-                __WorkspaceBase = .;
         } >ram
 
         /*
diff --git a/c/src/lib/libbsp/m68k/idp/startup/bspstart.c b/c/src/lib/libbsp/m68k/idp/startup/bspstart.c
index a3bd194c32..d67cb92225 100644
--- a/c/src/lib/libbsp/m68k/idp/startup/bspstart.c
+++ b/c/src/lib/libbsp/m68k/idp/startup/bspstart.c
@@ -63,10 +63,10 @@ void bsp_libc_init( void *, unsigned32, int );
  
 void bsp_pretasking_hook(void)
 {
-    extern int end;
+    extern int _end;
     rtems_unsigned32        heap_start;
  
-    heap_start = (rtems_unsigned32) &end;
+    heap_start = (rtems_unsigned32) &_end;
     if (heap_start & (CPU_ALIGNMENT-1))
         heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
  
diff --git a/c/src/lib/libbsp/m68k/ods68302/start/reset.S b/c/src/lib/libbsp/m68k/ods68302/start/reset.S
index 71d1071243..95447da7e1 100644
--- a/c/src/lib/libbsp/m68k/ods68302/start/reset.S
+++ b/c/src/lib/libbsp/m68k/ods68302/start/reset.S
@@ -438,9 +438,9 @@ copy_remap:
         |
 
 copy_data:
-        moveal  #etext,%a0                      | find the end of .text
-        moveal  #data_start,%a1                 | find the beginning of .data
-        moveal  #edata,%a2                      | find the end of .data
+        moveal  #_etext,%a0                     | find the end of .text
+        moveal  #_copy_start,%a1                | find the beginning of .data
+        moveal  #_edata,%a2                     | find the end of .data
         
 copy_data_loop:
         
@@ -454,7 +454,7 @@ copy_data_loop:
 
 zerobss:
         moveal  #end,%a0                        | find end of .bss
-        moveal  #bss_start,%a1                  | find beginning of .bss
+        moveal  #_bss_start,%a1                 | find beginning of .bss
         moveq   #0,%d0
         
 zerobss_loop:
diff --git a/c/src/lib/libbsp/m68k/shared/start.S b/c/src/lib/libbsp/m68k/shared/start.S
index 6ab0974948..2791fab91e 100644
--- a/c/src/lib/libbsp/m68k/shared/start.S
+++ b/c/src/lib/libbsp/m68k/shared/start.S
@@ -68,15 +68,15 @@ SYM (start_around):
         | zero out uninitialized data area
         |
 zerobss:
-        moveal  # SYM (end),a0          | find end of .bss
-        moveal  # SYM (bss_start),a1    | find beginning of .bss
+        moveal  # SYM (end),a0         | find end of .bss
+        moveal  # SYM (_bss_start),a1   | find beginning of .bss
         movel   #0,d0
 
 loop:   movel   #0,a1@+                 | to zero out uninitialized
         cmpal   a0,a1
         jlt     loop                    | loop until _end reached
 
-        movel   # SYM (stack_init),d0   | d0 = stop of stack
+        movel   # SYM (_stack_init),d0  | d0 = stop of stack
         andl    #0xffffffc0,d0          | align it on 16 byte boundary
         movw    #0x3700,sr              | SUPV MODE,INTERRUPTS OFF!!!
         movel   d0,a7                   | set master stack pointer