RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

All m68k BSPs now build with new ELF style linkcmds.

Browse Source
This commit is contained in:
Joel Sherrill
2000-01-13 20:45:07 +00:00
parent 11944b9bc3
commit b8c9883755
46 changed files with 192 additions and 681 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
c/src/lib/libbsp/m68k/dmv152/include/bsp.h
View File

@@ -120,9 +120,6 @@ extern "C" {
/* constants */
#define RAM_START 0
#define RAM_END 0x100000
#define TIMER 0x0c000000
#define TIMER_VECTOR 0x4D

4
c/src/lib/libbsp/m68k/dmv152/startup/Makefile.in
View File

@@ -16,8 +16,8 @@ VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bspclean bsplibc bsppost bspstart bootcard main sbrk setvec \
vmeintr gnatinstallhandler
C_PIECES = bspclean bsplibc bsppost bspstart bootcard m68kpretaskinghook \
main sbrk setvec vmeintr gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

31
c/src/lib/libbsp/m68k/dmv152/startup/bspstart.c
View File

@@ -39,32 +39,7 @@ char *rtems_progname;
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
extern void *_HeapStart;
extern rtems_unsigned32 HeapSize;
bsp_libc_init( &_HeapStart, HeapSize, 0 );
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
void bsp_pretasking_hook(void); /* m68k version */
/*
* bsp_start
@@ -77,6 +52,7 @@ void bsp_start( void )
m68k_isr_entry *monitors_vector_table;
int index;
void *vbr;
extern void *_WorkspaceBase;
monitors_vector_table = (m68k_isr_entry *)0; /* Monitor Vectors are at 0 */
m68k_set_vbr( monitors_vector_table );
@@ -118,8 +94,7 @@ void bsp_start( void )
m68k_get_vbr( vbr );
Cpu_table.interrupt_vector_table = vbr;
BSP_Configuration.work_space_start = (void *)
(RAM_END - BSP_Configuration.work_space_size);
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
/*
* Account for the console's resources

18
c/src/lib/libbsp/m68k/dmv152/startup/linkcmds
View File

@@ -15,14 +15,17 @@
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
MEMORY
{
ram : org = 0x0, l = 1M
}
_RamBase = 0;
_RamSize = 1M;
SECTIONS
{
ram : {
@@ -117,15 +120,10 @@ SECTIONS
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
PROVIDE (_clear_end = .);
_stack_init = .;
_clear_end = .;
_WorkspaceBase = .;
} >ram

4
c/src/lib/libbsp/m68k/efi332/startup/Makefile.in
View File

@@ -16,8 +16,8 @@ VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bsplibc bsppost bspstart bspclean bootcard main sbrk setvec \
gnatinstallhandler
C_PIECES = bsplibc bsppost bspstart bspclean bootcard m68kpretaskinghook \
main sbrk setvec gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

47
c/src/lib/libbsp/m68k/efi332/startup/bspstart.c
View File

@@ -38,43 +38,7 @@ char *rtems_progname;
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
/* extern int end; */
rtems_unsigned32 heap_start;
heap_start = (rtems_unsigned32) BSP_Configuration.work_space_start +
(rtems_unsigned32) BSP_Configuration.work_space_size;
if (heap_start & (CPU_ALIGNMENT-1))
heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
if (heap_start > (rtems_unsigned32) RAM_END) {
/* rtems_fatal_error_occurred can not be used before initalization */
RAW_PUTS("\n\rRTEMS: Out of memory.\n\r");
RAW_PUTS("RTEMS: Check RAM_END and the size of the work space.\n\r");
}
bsp_libc_init((void *) heap_start, (RAM_END - heap_start), 0);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
void bsp_pretasking_hook(void); /* m68k version */
/*
* bsp_start
@@ -85,7 +49,7 @@ void bsp_pretasking_hook(void)
void bsp_start( void )
{
void *vbr;
extern unsigned int _WorkspaceBase;
extern void *_WorkspaceBase;
/*
* we only use a hook to get the C library initialized.
@@ -97,12 +61,7 @@ void bsp_start( void )
m68k_get_vbr( vbr );
Cpu_table.interrupt_vector_table = vbr;
BSP_Configuration.work_space_start = (void *)
(((unsigned int)_WorkspaceBase + STACK_SIZE + 0x100) & 0xffffff00);
#if 0
(((unsigned int)_end + STACK_SIZE + 0x100) & 0xffffff00);
#endif
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
/* Clock_exit is done as an atexit() function */
}

22
c/src/lib/libbsp/m68k/efi332/startup/linkcmds
View File

@@ -33,14 +33,17 @@ __DYNAMIC = 0;
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
MEMORY
{
ram : ORIGIN = 0x80000, LENGTH = 512K
}
_RamBase = 0x80000;
_RamSize = 0x80000;
__end_of_ram = 0x100000;
_copy_data_from_rom = 0;
@@ -135,22 +138,17 @@ SECTIONS
PROVIDE (_copy_end = .);
} >ram
.bss : {
PROVIDE (_clear_start = .);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_clear_end = .);
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
}

4
c/src/lib/libbsp/m68k/efi68k/startup/Makefile.in
View File

@@ -11,13 +11,13 @@ subdir = startup
RTEMS_ROOT = @RTEMS_ROOT@
PROJECT_ROOT = @PROJECT_ROOT@
VPATH = @srcdir@:@srcdir@/../../../shared
VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bsplibc bsppost bspstart bspclean efi68k_tcp efi68k_wd bootcard \
main sbrk setvec gnatinstallhandler
m68kpretaskinghook main sbrk setvec gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

47
c/src/lib/libbsp/m68k/efi68k/startup/bspstart.c
View File

@@ -43,44 +43,8 @@ extern void breakpoint(void);
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
void bsp_pretasking_hook(void); /* m68k version */
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
/* extern int end; */
rtems_unsigned32 heap_start;
heap_start = (rtems_unsigned32) BSP_Configuration.work_space_start +
(rtems_unsigned32) BSP_Configuration.work_space_size;
if (heap_start & (CPU_ALIGNMENT-1))
heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
if (heap_start > (rtems_unsigned32) RAM_END) {
/* rtems_fatal_error_occurred can not be used before initalization */
RAW_PUTS("\n\rRTEMS: Out of memory.\n\r");
RAW_PUTS("RTEMS: Check RAM_END and the size of the work space.\n\r");
}
bsp_libc_init((void *) heap_start, (RAM_END - heap_start), 0);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
/*
* bsp_start
*
@@ -90,7 +54,7 @@ void bsp_pretasking_hook(void)
void bsp_start( void )
{
void *vbr;
extern unsigned int _WorkspaceBase;
extern void *_WorkspaceBase;
/* set_debug_traps(); */
/* breakpoint(); */
@@ -105,12 +69,7 @@ void bsp_start( void )
m68k_get_vbr( vbr );
Cpu_table.interrupt_vector_table = vbr;
BSP_Configuration.work_space_start = (void *)
(((unsigned int)_WorkspaceBase + STACK_SIZE + 0x100) & 0xffffff00);
#if 0
(((unsigned int)_end + STACK_SIZE + 0x100) & 0xffffff00);
#endif
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
/* Clock_exit is done as an atexit() function */
}

22
c/src/lib/libbsp/m68k/efi68k/startup/linkcmds
View File

@@ -42,6 +42,9 @@ MEMORY
ram : ORIGIN = 0x203000, LENGTH = 256K
}
_RamBase = 0x200000;
_RamSize = 256K;
_VBR = 0x200000; /* location of the VBR table (in RAM) */
__end_of_ram = 0x240000;
_copy_data_from_rom = 0;
@@ -49,8 +52,8 @@ _copy_data_from_rom = 0;
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
/*
* stick everything in ram (of course)
@@ -144,22 +147,17 @@ SECTIONS
PROVIDE (_copy_end = .);
} >ram
.bss : {
PROVIDE (_clear_start = .);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_clear_end = .);
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
}

4
c/src/lib/libbsp/m68k/gen68302/startup/Makefile.in
View File

@@ -16,8 +16,8 @@ VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bspclean bsplibc bsppost bspstart bootcard main sbrk setvec \
gnatinstallhandler
C_PIECES = bspclean bsplibc bsppost bspstart bootcard m68kpretaskinghook \
main sbrk setvec gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

36
c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c
View File

@@ -39,37 +39,7 @@ char *rtems_progname;
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
extern int end;
rtems_unsigned32 heap_start;
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);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
void bsp_pretasking_hook(void); /* m68k version */
/*
* bsp_start
@@ -79,6 +49,7 @@ void bsp_pretasking_hook(void)
void bsp_start( void )
{
extern void *_WorkspaceBase;
/*
* Allocate the memory for the RTEMS Work Space. This can come from
@@ -97,8 +68,7 @@ void bsp_start( void )
* not malloc'ed. It is just "pulled from the air".
*/
BSP_Configuration.work_space_start = (void *)
(RAM_END - BSP_Configuration.work_space_size);
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
/*
* initialize the CPU table for this BSP

22
c/src/lib/libbsp/m68k/gen68302/startup/linkcmds
View File

@@ -17,14 +17,17 @@ MEMORY
ram : org = 0x0000, l = 16M
}
_RamBase = 0;
_RamSize = 16M;
m302 = 0xf7f000;
_VBR = 0x000000; /* location of the VBR table (in RAM) */
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
SECTIONS
{
@@ -114,22 +117,17 @@ SECTIONS
PROVIDE (_copy_end = .);
} >ram
.bss : {
PROVIDE (_clear_start = .);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_clear_end = .);
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
}

8
c/src/lib/libbsp/m68k/gen68340/start/start.S
View File

@@ -851,14 +851,6 @@ SYM(_mainDone):
bra.l SYM(_mainDone) | Stuck forever
.align 2
PUBLIC (_HeapSize)
SYM (_HeapSize):
.long HeapSize
PUBLIC (_StackSize)
SYM (_StackSize):
.long StackSize
END_CODE
BEGIN_DATA_DCL
.align 2
PUBLIC (environ)

7
c/src/lib/libbsp/m68k/gen68340/start/startfor340only.S
View File

@@ -476,13 +476,6 @@ SYM(_mainDone):
bra.s SYM(_mainDone) | Stuck forever
.align 2
PUBLIC (_HeapSize)
SYM (_HeapSize):
.long HeapSize
PUBLIC (_StackSize)
SYM (_StackSize):
.long StackSize
END_CODE
BEGIN_DATA_DCL
.align 2

4
c/src/lib/libbsp/m68k/gen68340/startup/Makefile.in
View File

@@ -16,8 +16,8 @@ VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bspclean bsplibc bsppost bspstart init68340 bootcard main sbrk \
setvec dumpanic gnatinstallhandler
C_PIECES = bspclean bsplibc bsppost bspstart init68340 bootcard \
m68kpretaskinghook main sbrk setvec dumpanic gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

27
c/src/lib/libbsp/m68k/gen68340/startup/bspstart.c
View File

@@ -44,32 +44,7 @@ char *rtems_progname;
*/
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
extern void *_HeapStart;
extern rtems_unsigned32 _HeapSize;
bsp_libc_init(&_HeapStart, _HeapSize, 0);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
void bsp_pretasking_hook(void); /* m68k version */
/*
* bsp_start

43
c/src/lib/libbsp/m68k/gen68340/startup/linkcmds
View File

@@ -17,22 +17,18 @@
* $Id$
*/
/*
* a.out format doesn't handle prom images very well
*/
OUTPUT_FORMAT(coff-m68k)
/*
* Declare some sizes.
*/
RamSize = DEFINED(RamSize) ? RamSize : 4M;
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_RamBase = 0x10000000;
_RamSize = DEFINED(_RamSize) ? _RamSize : 4M;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
/*
* Declare on-board memory.
* It would be nice if the ram length could be given as
* LENGTH=RamSize, but gld doesn't allow non-constant
* LENGTH=_RamSize, but gld doesn't allow non-constant
* values in the LENGTH expression.
*/
MEMORY {
@@ -50,11 +46,6 @@ ETHERNET_ADDRESS = DEFINED(ETHERNET_ADDRESS) ? ETHERNET_ADDRESS : 0xDEAD12;
* Load objects
*/
SECTIONS {
/*
* Hardware variations
*/
_RamSize = RamSize;
__RamSize = RamSize;
/*
* Boot PROM
@@ -68,8 +59,7 @@ SECTIONS {
* Dynamic RAM
*/
ram : {
_RamBase = .;
__RamBase = .;
. = .;
} >ram
/*
@@ -154,27 +144,20 @@ SECTIONS {
PROVIDE (_copy_end = .);
} >ram
.bss : {
M68Kvec = .;
_M68Kvec = .;
. += (256 * 4);
PROVIDE (_bss_start = .);
PROVIDE (_clear_start = .);
M68Kvec = .;
. += (256 * 4);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_clear_end = .);
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
/*

8
c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp
View File

@@ -18,8 +18,8 @@
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
/*
* Declare on-board memory.
@@ -120,8 +120,8 @@ SECTIONS {
_end = .;
_HeapStart = .;
. += HeapSize;
. += StackSize;
. += _HeapSize;
. += _StackSize;
. = ALIGN (16);
stack_init = .;
clear_end = .;

8
c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom
View File

@@ -18,8 +18,8 @@
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
/*
* Declare on-board memory.
@@ -119,8 +119,8 @@ SECTIONS {
_end = .;
_HeapStart = .;
. += HeapSize;
. += StackSize;
. += _HeapSize;
. += _StackSize;
. = ALIGN (16);
stack_init = .;
clear_end = .;

4
c/src/lib/libbsp/m68k/idp/startup/Makefile.in
View File

@@ -16,8 +16,8 @@ VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bspclean bsplibc bsppost bspstart bootcard main sbrk setvec \
gnatinstallhandler
C_PIECES = bspclean bsplibc bsppost bspstart bootcard m68kpretaskinghook \
main sbrk setvec gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

36
c/src/lib/libbsp/m68k/idp/startup/bspstart.c
View File

@@ -46,38 +46,8 @@ char *rtems_progname;
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
void bsp_pretasking_hook(void); /* m68k version */
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
extern int _end;
rtems_unsigned32 heap_start;
heap_start = (rtems_unsigned32) &_end;
if (heap_start & (CPU_ALIGNMENT-1))
heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
/* Create 64 KByte memory region for RTEMS executive */
bsp_libc_init((void *) heap_start, 64 * 1024, 0);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
/*
* bsp_start
*
@@ -88,6 +58,7 @@ void bsp_start( void )
{
m68k_isr_entry *monitors_vector_table;
int index;
extern void *_WorkspaceBase;
duart_base = (unsigned char *)DUART_ADDR;
@@ -126,8 +97,7 @@ void bsp_start( void )
Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec;
Cpu_table.interrupt_stack_size = 4096;
BSP_Configuration.work_space_start = (void *)
(RAM_END - BSP_Configuration.work_space_size);
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
/* led_putnum('e'); * for debugging purposes only */

22
c/src/lib/libbsp/m68k/idp/startup/linkcmds
View File

@@ -20,8 +20,10 @@ MEMORY
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_RamBase = 0x0;
_RamSize = DEFINED(_RamSize) ? _RamSize : 2M;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
SECTIONS
{
@@ -111,23 +113,17 @@ SECTIONS
PROVIDE (_copy_end = .);
} >ram
.bss : {
PROVIDE (_bss_start = .);
PROVIDE (_clear_start = .);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_clear_end = .);
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
}

4
c/src/lib/libbsp/m68k/mvme136/startup/Makefile.in
View File

@@ -16,8 +16,8 @@ VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bspclean bsplibc bsppost bspstart bootcard main sbrk setvec \
gnatinstallhandler
C_PIECES = bspclean bsplibc bsppost bspstart bootcard m68kpretaskinghook \
main sbrk setvec gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

37
c/src/lib/libbsp/m68k/mvme136/startup/bspstart.c
View File

@@ -40,37 +40,7 @@ char *rtems_progname;
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
extern int end;
rtems_unsigned32 heap_start;
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);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
void bsp_pretasking_hook(void); /* m68k version */
/*
* bsp_start
@@ -82,6 +52,7 @@ void bsp_start( void )
{
m68k_isr_entry *monitors_vector_table;
int index;
extern void *_WorkspaceBase;
monitors_vector_table = (m68k_isr_entry *)0; /* 135Bug Vectors are at 0 */
m68k_set_vbr( monitors_vector_table );
@@ -109,7 +80,5 @@ void bsp_start( void )
Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec;
Cpu_table.interrupt_stack_size = 4096;
BSP_Configuration.work_space_start = (void *)
(RAM_END - BSP_Configuration.work_space_size);
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
}

22
c/src/lib/libbsp/m68k/mvme136/startup/linkcmds
View File

@@ -15,8 +15,10 @@
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_RamBase = 0x0;
_RamSize = DEFINED(_RamSize) ? _RamSize : 1M;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
MEMORY
{
@@ -111,23 +113,17 @@ SECTIONS
PROVIDE (_copy_end = .);
} >ram
.bss : {
PROVIDE (_bss_start = .);
PROVIDE (_clear_start = .);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_clear_end = .);
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
}

4
c/src/lib/libbsp/m68k/mvme147/startup/Makefile.in
View File

@@ -16,8 +16,8 @@ VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bspclean bsplibc bsppost bspstart bootcard main sbrk setvec \
gnatinstallhandler
C_PIECES = bspclean bsplibc bsppost bspstart bootcard m68kpretaskinghook \
main sbrk setvec gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

37
c/src/lib/libbsp/m68k/mvme147/startup/bspstart.c
View File

@@ -43,38 +43,8 @@ char *rtems_progname;
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
void bsp_pretasking_hook(void); /* m68k version */
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
extern int end;
rtems_unsigned32 heap_start;
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);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
/*
* bsp_start
*
@@ -85,6 +55,7 @@ void bsp_start( void )
{
m68k_isr_entry *monitors_vector_table;
int index;
extern void *_WorkspaceBase;
monitors_vector_table = (m68k_isr_entry *)0; /* 135Bug Vectors are at 0 */
m68k_set_vbr( monitors_vector_table );
@@ -115,7 +86,5 @@ void bsp_start( void )
Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec;
Cpu_table.interrupt_stack_size = 4096;
BSP_Configuration.work_space_start = (void *)
(RAM_END - BSP_Configuration.work_space_size);
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
}

22
c/src/lib/libbsp/m68k/mvme147/startup/linkcmds
View File

@@ -19,8 +19,10 @@
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_RamBase = 0x0;
_RamSize = DEFINED(_RamSize) ? _RamSize : 4M;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
MEMORY
{
@@ -115,23 +117,17 @@ SECTIONS
PROVIDE (_copy_end = .);
} >ram
.bss : {
PROVIDE (_bss_start = .);
PROVIDE (_clear_start = .);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_clear_end = .);
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
}

4
c/src/lib/libbsp/m68k/mvme147s/startup/Makefile.in
View File

@@ -17,8 +17,8 @@ VPATH = \
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bspclean bsplibc bsppost bspstart bootcard main sbrk setvec \
gnatinstallhandler
C_PIECES = bspclean bsplibc bsppost bspstart bootcard m68kpretaskinghook \
main sbrk setvec gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

36
c/src/lib/libbsp/m68k/mvme147s/startup/bspstart.c
View File

@@ -43,37 +43,8 @@ char *rtems_progname;
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
void bsp_pretasking_hook(void); /* m68k version */
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
extern int end;
rtems_unsigned32 heap_start;
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);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
/*
* bsp_start
*
@@ -85,6 +56,7 @@ void bsp_start( void )
m68k_isr_entry *monitors_vector_table;
int index;
rtems_unsigned8 node_number;
extern void *_WorkspaceBase;
monitors_vector_table = (m68k_isr_entry *)0; /* 147Bug Vectors are at 0 */
m68k_set_vbr( monitors_vector_table );
@@ -174,7 +146,5 @@ void bsp_start( void )
Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec;
Cpu_table.interrupt_stack_size = 4096;
BSP_Configuration.work_space_start = (void *)
(RAM_END - BSP_Configuration.work_space_size);
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
}

22
c/src/lib/libbsp/m68k/mvme147s/startup/linkcmds
View File

@@ -19,8 +19,10 @@
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_RamBase = 0x0;
_RamSize = DEFINED(_RamSize) ? _RamSize : 4M;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
MEMORY
{
@@ -115,23 +117,17 @@ SECTIONS
PROVIDE (_copy_end = .);
} >ram
.bss : {
PROVIDE (_bss_start = .);
PROVIDE (_clear_start = .);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_clear_end = .);
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
}

4
c/src/lib/libbsp/m68k/mvme162/startup/Makefile.in
View File

@@ -16,8 +16,8 @@ VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bspclean bsplibc bsppost bspstart bootcard main page_table sbrk \
setvec gnatinstallhandler
C_PIECES = bspclean bsplibc bsppost bspstart bootcard m68kpretaskinghook \
main page_table sbrk setvec gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

35
c/src/lib/libbsp/m68k/mvme162/startup/bspstart.c
View File

@@ -47,36 +47,7 @@ char *rtems_progname;
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
extern int end;
rtems_unsigned32 heap_start;
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);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
void bsp_pretasking_hook(void); /* m68k version */
/*
* bsp_start
@@ -88,6 +59,7 @@ void bsp_start( void )
{
m68k_isr_entry *monitors_vector_table;
int index;
extern void *_WorkspaceBase;
/*
* 162Bug Vectors are at 0xFFE00000
@@ -132,6 +104,5 @@ void bsp_start( void )
Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec;
Cpu_table.interrupt_stack_size = 4096;
BSP_Configuration.work_space_start = (void *)
(RAM_END - BSP_Configuration.work_space_size);
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
}

22
c/src/lib/libbsp/m68k/mvme162/startup/linkcmds
View File

@@ -22,8 +22,10 @@
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_RamBase = 0x100000;
_RamSize = DEFINED(_RamSize) ? _RamSize : 1M;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
MEMORY
{
@@ -118,23 +120,17 @@ SECTIONS
PROVIDE (_copy_end = .);
} >ram
.bss : {
PROVIDE (_bss_start = .);
PROVIDE (_clear_start = .);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_clear_end = .);
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
}

2
c/src/lib/libbsp/m68k/mvme167/bsp_specs
View File

@@ -15,7 +15,7 @@
%{!qrtems_debug: -lrtemsall} %{qrtems_debug: -lrtemsall_g} \
-lc -lgcc --end-group \
%{!qelf: %{!qnolinkcmds: -T linkcmds%s}} %{qelf: %{!qnolinkcmd: -T
elflinkcmds%s}}}
linkcmds%s}}}
*startfile:
%{!qrtems: %(old_startfile)} %{qrtems: \

4
c/src/lib/libbsp/m68k/mvme167/startup/Makefile.in
View File

@@ -16,8 +16,8 @@ VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared
PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = bspclean bsplibc bsppost bspstart bootcard main page_table sbrk \
setvec gnatinstallhandler
C_PIECES = bspclean bsplibc bsppost bspstart bootcard m68kpretaskinghook \
main page_table sbrk setvec gnatinstallhandler
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

44
c/src/lib/libbsp/m68k/mvme167/startup/bspstart.c
View File

@@ -48,48 +48,7 @@ rtems_cpu_table Cpu_table;
*/
void bsp_postdriver_hook( void );
void bsp_libc_init( void *, unsigned32, int );
/*
* bsp_pretasking_hook
*
* Called when RTEMS initialization is complete but before interrupts and
* tasking are enabled. Used to setup libc and install any BSP extensions.
*
* Must not use libc (to do io) from here, since drivers are not yet
* initialized.
*
* Installed in the rtems_cpu_table defined in
* rtems/c/src/exec/score/cpu/m68k/cpu.h in main() below. Called from
* rtems_initialize_executive() defined in rtems/c/src/exec/sapi/src/init.c
*
* Input parameters: NONE
*
* Output parameters: NONE
*
* Return values: NONE
*/
void bsp_pretasking_hook( void )
{
/*
* These are assigned addresses in the linkcmds file for the BSP. This
* approach is better than having these defined as manifest constants and
* compiled into the kernel, but it is still not ideal when dealing with
* multiprocessor configuration in which each board as a different memory
* map. A better place for defining these symbols might be the makefiles.
* Consideration should also be given to developing an approach in which
* the kernel and the application can be linked and burned into ROM
* independently of each other.
*/
extern unsigned char _HeapStart, _HeapEnd;
bsp_libc_init(&_HeapStart, &_HeapEnd - &_HeapStart, 0);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
void bsp_pretasking_hook(void); /* m68k version */
/*
* bsp_start()
@@ -122,6 +81,7 @@ void bsp_start( void )
{
extern void *_WorkspaceBase;
extern m68k_isr_entry M68Kvec[];
extern void *_WorkspaceBase;
void M68KFPSPInstallExceptionHandlers (void);

17
c/src/lib/libbsp/m68k/mvme167/startup/elflinkcmds
View File

@@ -21,20 +21,11 @@ OUTPUT_FORMAT("elf32-m68k")
OUTPUT_ARCH(m68k)
ENTRY(_start)
/* Base address and size of RAM on the MVME167 */
RAM_SIZE = 4M;
RAM_START = 0x00800000;
RAM_END = RAM_START + RAM_SIZE;
/*
* 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;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
MEMORY
{
@@ -170,9 +161,9 @@ SECTIONS
. += HeapSize; /* XXX -- Old gld can't handle this */
_HeapEnd = .;
_StackStart = .;
. += StackSize; /* 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 */
/* . += 0x1000; */ /* _StackSize for old gld */
. = ALIGN (16);
_StackEnd = .;
stack_init = .;

27
c/src/lib/libbsp/m68k/mvme167/startup/linkcmds
View File

@@ -21,17 +21,13 @@
OUTPUT_ARCH(m68k)
ENTRY(_start)
/* Base address and size of RAM on the MVME167 */
RAM_SIZE = 4M;
RAM_START = 0x00800000;
RAM_END = RAM_START + RAM_SIZE;
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_RamBase = 0x00800000;
_RamSize = DEFINED(_RamSize) ? _RamSize : 4M;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
MEMORY
{
@@ -132,22 +128,17 @@ SECTIONS
PROVIDE (_copy_end = .);
} >ram
.bss : {
PROVIDE (_bss_start = .);
PROVIDE (_clear_start = .);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
PROVIDE (_clear_end = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
}

18
c/src/lib/libbsp/m68k/ods68302/start/debugreset.S
View File

@@ -47,22 +47,17 @@ start:
|
zerobss:
moveal #end,%a0 | find end of .bss
moveal #bss_start,%a1 | find beginning of .bss
moveal #_clear_end,%a0 | find end of .bss
moveal #_clear_start,%a1 | find beginning of .bss
moveq #0,%d0
zerobss_loop:
movel %d0,%a1@+ | to zero out uninitialized
cmpal %a0,%a1
jlt zerobss_loop | loop until _end reached
jlt zerobss_loop | loop until end reached
movel #end,%d0 | d0 = end of bss/start of heap
addl #heap_size,%d0 | d0 = end of heap
movel %d0,stack_start | Save for brk() routine
addl #stack_size,%d0 | make room for stack
andl #0xffffffc0,%d0 | align it on 16 byte boundary
movel %d0,_stack_init | load stack top
movw #0x3700,%sr | SUPV MODE,INTERRUPTS OFF!!!
movel %d0,%a7 | set master stack pointer
@@ -81,11 +76,6 @@ zerobss_loop:
start_frame:
.space 4,0
.global stack_start
stack_start:
.space 4,0
|
| Uninitialised data
|

11
c/src/lib/libbsp/m68k/ods68302/start/reset.S
View File

@@ -453,8 +453,8 @@ copy_data_loop:
|
zerobss:
moveal #end,%a0 | find end of .bss
moveal #_bss_start,%a1 | find beginning of .bss
moveal #_clear_end,%a0 | find end of .bss
moveal #_clear_start,%a1 | find beginning of .bss
moveq #0,%d0
zerobss_loop:
@@ -463,12 +463,7 @@ zerobss_loop:
cmpal %a0,%a1
jlt zerobss_loop | loop until _end reached
movel #end,%d0 | d0 = end of bss/start of heap
addl #heap_size,%d0 | d0 = end of heap
movel %d0,stack_start | Save for brk() routine
addl #stack_size,%d0 | make room for stack
andl #0xffffffc0,%d0 | align it on 16 byte boundary
movel %d0,_stack_init | load stack top
movw #0x3700,%sr | SUPV MODE,INTERRUPTS OFF!!!
movel %d0,%a7 | set master stack pointer

4
c/src/lib/libbsp/m68k/ods68302/startup/Makefile.in
View File

@@ -17,8 +17,8 @@ PGM = ${ARCH}/startup.rel
# C source names, if any, go here -- minus the .c
C_PIECES = crc debugport gdb-hooks bootcard main m68302scc m68k-stub \
memcheck trace gnatinstallhandler bsplibc bsppost bspstart bspclean sbrk \
setvec
m68kpretaskinghook memcheck trace gnatinstallhandler bsplibc \
bsppost bspstart bspclean sbrk setvec
C_FILES = $(C_PIECES:%=%.c)
C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)

43
c/src/lib/libbsp/m68k/ods68302/startup/bspstart.c
View File

@@ -40,37 +40,8 @@ char *rtems_progname;
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
void bsp_pretasking_hook(void); /* m68k version */
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
extern int end;
rtems_unsigned32 heap_start;
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);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
/*
* bsp_start
*
@@ -79,13 +50,8 @@ void bsp_pretasking_hook(void)
void bsp_start( void )
{
/*
* Allocate the memory for the RTEMS Work Space. This can come from
* a variety of places: hard coded address, malloc'ed from outside
* RTEMS world (e.g. simulator or primitive memory manager), or (as
* typically done by stock BSPs) by subtracting the required amount
* of work space from the last physical address on the CPU board.
*/
extern void *_WorkspaceBase;
#if 0
Cpu_table.interrupt_vector_table = (mc68000_isr *) 0/*&M68Kvec*/;
#endif
@@ -96,8 +62,7 @@ void bsp_start( void )
* not malloc'ed. It is just "pulled from the air".
*/
BSP_Configuration.work_space_start = (void *)
(RAM_END - BSP_Configuration.work_space_size);
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
/*
* initialize the CPU table for this BSP

22
c/src/lib/libbsp/m68k/ods68302/startup/linkcmds
View File

@@ -8,8 +8,10 @@
/*
* Declare some sizes.
*/
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
_RamBase = 0x0;
_RamSize = DEFINED(_RamSize) ? _RamSize : 1M;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
/*
* Declare on-board memory.
@@ -113,24 +115,18 @@ SECTIONS
PROVIDE (_copy_end = .);
} >ram
.bss : {
PROVIDE (_bss_start = .);
PROVIDE (_clear_start = .);
_clear_start = .;
*(.bss)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
. += StackSize;
PROVIDE (_stack_init = .);
. += _StackSize;
. = ALIGN (16);
PROVIDE (_HeapStart = .);
. += HeapSize;
PROVIDE (_HeapEnd = .);
_stack_init = .;
_clear_end = .;
PROVIDE (_clear_end = .);
PROVIDE (_WorkspaceBase = .);
_WorkspaceBase = .;
} >ram
}

1
c/src/lib/libbsp/m68k/shared/start.S
View File

@@ -77,7 +77,6 @@ loop: movel #0,a1@+ | to zero out uninitialized
jlt loop | loop until _end reached
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
movel d0,a6 | set base pointer