diff options
Diffstat (limited to 'c/src/lib/libbsp/i960/cvme961')
| -rw-r--r-- | c/src/lib/libbsp/i960/cvme961/start/Makefile.in | 6 | ||||
| -rw-r--r-- | c/src/lib/libbsp/i960/cvme961/start/start.S | 110 | ||||
| -rw-r--r-- | c/src/lib/libbsp/i960/cvme961/timer/Makefile.in | 6 | ||||
| -rw-r--r-- | c/src/lib/libbsp/i960/cvme961/timer/timerisr.S (renamed from c/src/lib/libbsp/i960/cvme961/timer/timerisr.s) | 0 | ||||
| -rw-r--r-- | c/src/lib/libbsp/i960/cvme961/wrapup/Makefile.in | 15 |
5 files changed, 126 insertions, 11 deletions
diff --git a/c/src/lib/libbsp/i960/cvme961/start/Makefile.in b/c/src/lib/libbsp/i960/cvme961/start/Makefile.in index 68dcd2196e..1ed947fc54 100644 --- a/c/src/lib/libbsp/i960/cvme961/start/Makefile.in +++ b/c/src/lib/libbsp/i960/cvme961/start/Makefile.in @@ -15,10 +15,10 @@ C_O_FILES=$(C_PIECES:%=${ARCH}/%.o) H_FILES= -# Assembly source names, if any, go here -- minus the .s +# Assembly source names, if any, go here -- minus the .S S_PIECES=start -S_FILES=$(S_PIECES:%=%.s) -S_O_FILES=$(S_FILES:%.s=${ARCH}/%.o) +S_FILES=$(S_PIECES:%=%.S) +S_O_FILES=$(S_FILES:%.S=${ARCH}/%.o) SRCS=$(C_FILES) $(H_FILES) $(S_FILES) OBJS=$(C_O_FILES) $(S_O_FILES) diff --git a/c/src/lib/libbsp/i960/cvme961/start/start.S b/c/src/lib/libbsp/i960/cvme961/start/start.S new file mode 100644 index 0000000000..1d6055363a --- /dev/null +++ b/c/src/lib/libbsp/i960/cvme961/start/start.S @@ -0,0 +1,110 @@ +/* entry.s + * + * This file contains the entry point for the application. + * The name of this entry point is compiler dependent. + * It jumps to the BSP which is responsible for performing + * all initialization. + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include "asm.h" + + BEGIN_CODE + PUBLIC(start) # GNU960 default entry point + +SYM(start): + mov 3, r12 + modpc r12, r12, r12 # enable tracing/trace faults + mov g5, g5 # NOP + mov 0, g14 # initialize constant for C + + /* + * zero out uninitialized data area + */ +zerobss: + lda _end, r4 /* find end of .bss */ + lda _bss_start, r5 /* find beginning of .bss */ + ldconst 0, r6 + +loop: st r6, (r5) /* to zero out uninitialized */ + addo 4, r5, r5 /* data area */ + cmpobl r5, r4, loop /* loop until _end reached */ + +/* set up stack pointer: + * The heap will begin at '_end'; its length is 'heap_size' + * bytes. The stack will begin at the first 64-byte-aligned + * block after the heap. + * + * A default value of 'heap_size' is set by linking with libnindy.a + * The default can be overridden by redefining this symbol at link + * time (with a line of the form 'heap_size=XXXX;' in the lnk960 + * linker specification file; or one of the form + * "-defsym heap_size=XXXX" on the gld960 invocation line). + */ + + ldconst _end, sp /* set sp = address of end of heap */ + lda heap_size(sp),sp + lda 64(sp), sp /* Now round up to 64-byte boundary */ + ldconst 0xffffffc0, r12 + and r12, sp, sp + st sp, _stack_start /* Save for brk() routine */ + + call init_frames + ret /* return to monitor */ + +init_frames: + mov 0, g14 /* initialize constant for C */ + ldconst 0x3b001000, g0 + ldconst 0x00009107, g1 + modac g1, g0, g0 /* set AC controls */ + + /* + * remember the frame, so that we can set it up if necessary + */ + + st fp, _start_frame + + /* + * Call application boot_card. + * Someday, real values of argc and argv will be set up. + * For now, they are set to 0. + */ + ldconst 0,g0 + ldconst 0,g1 + ldconst 0,g2 + call _boot_card + ret + +END_CODE + + BEGIN_DATA + + PUBLIC(_start_frame) + PUBLIC(start_frame) +SYM (_start_frame): +SYM (start_frame): + .word 0 # addr of first user frame: for gdb960 + + PUBLIC(_stack_start) + PUBLIC(stack_start) +SYM (_stack_start): +SYM (stack_start): + .word 0 # addr of first user frame: for gdb960 + +END_DATA + +BEGIN_BSS + PUBLIC(heap_size) + .set heap_size,0x2000 +END_BSS + +END diff --git a/c/src/lib/libbsp/i960/cvme961/timer/Makefile.in b/c/src/lib/libbsp/i960/cvme961/timer/Makefile.in index 24809cbed8..21ca9675e7 100644 --- a/c/src/lib/libbsp/i960/cvme961/timer/Makefile.in +++ b/c/src/lib/libbsp/i960/cvme961/timer/Makefile.in @@ -17,10 +17,10 @@ C_O_FILES=$(C_PIECES:%=${ARCH}/%.o) H_FILES= -# Assembly source names, if any, go here -- minus the .s +# Assembly source names, if any, go here -- minus the .S S_PIECES=timerisr -S_FILES=$(S_PIECES:%=%.s) -S_O_FILES=$(S_FILES:%.s=${ARCH}/%.o) +S_FILES=$(S_PIECES:%=%.S) +S_O_FILES=$(S_FILES:%.S=${ARCH}/%.o) SRCS=$(C_FILES) $(H_FILES) $(S_FILES) OBJS=$(C_O_FILES) $(S_O_FILES) diff --git a/c/src/lib/libbsp/i960/cvme961/timer/timerisr.s b/c/src/lib/libbsp/i960/cvme961/timer/timerisr.S index edce480326..edce480326 100644 --- a/c/src/lib/libbsp/i960/cvme961/timer/timerisr.s +++ b/c/src/lib/libbsp/i960/cvme961/timer/timerisr.S diff --git a/c/src/lib/libbsp/i960/cvme961/wrapup/Makefile.in b/c/src/lib/libbsp/i960/cvme961/wrapup/Makefile.in index 11ca32d8c7..3ff8a45a12 100644 --- a/c/src/lib/libbsp/i960/cvme961/wrapup/Makefile.in +++ b/c/src/lib/libbsp/i960/cvme961/wrapup/Makefile.in @@ -8,17 +8,22 @@ VPATH = @srcdir@ RTEMS_ROOT = @top_srcdir@ PROJECT_ROOT = @PROJECT_ROOT@ -BSP_PIECES=startup clock console shmsupp timer -GENERIC_PIECES=shmdr +BSP_PIECES=startup clock console timer +GENERIC_PIECES= + +include $(RTEMS_ROOT)/make/custom/$(RTEMS_BSP).cfg +include $(RTEMS_ROOT)/make/lib.cfg + +ifeq ($(HAS_MP),yes) +GENERIC_PIECES += shmdr +BSP_PIECES += shmsupp +endif # bummer; have to use $foreach since % pattern subst rules only replace 1x OBJS=$(foreach piece, $(BSP_PIECES), ../$(piece)/$(ARCH)/$(piece).rel) \ $(foreach piece, $(GENERIC_PIECES), ../../../$(piece)/$(ARCH)/$(piece).rel) LIB=$(ARCH)/libbsp.a -include $(RTEMS_ROOT)/make/custom/$(RTEMS_BSP).cfg -include $(RTEMS_ROOT)/make/lib.cfg - # # (OPTIONAL) Add local stuff here using += # |