From 1d04e1673eee0ad9247ebbe73249a0f39d600c72 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Tue, 16 Nov 1999 13:45:51 +0000 Subject: Moved start code from lib/start to libbsp. --- c/src/lib/start/i960/Makefile.in | 64 ------- c/src/lib/start/i960/configure.in | 35 ---- c/src/lib/start/i960/start.S | 110 ------------ c/src/lib/start/mips64orion/Makefile.in | 64 ------- c/src/lib/start/mips64orion/configure.in | 35 ---- c/src/lib/start/mips64orion/idt_csu.S | 299 ------------------------------- c/src/lib/start/sh/Makefile.in | 69 ------- c/src/lib/start/sh/configure.in | 35 ---- c/src/lib/start/sh/start.S | 94 ---------- 9 files changed, 805 deletions(-) delete mode 100644 c/src/lib/start/i960/Makefile.in delete mode 100644 c/src/lib/start/i960/configure.in delete mode 100644 c/src/lib/start/i960/start.S delete mode 100644 c/src/lib/start/mips64orion/Makefile.in delete mode 100644 c/src/lib/start/mips64orion/configure.in delete mode 100644 c/src/lib/start/mips64orion/idt_csu.S delete mode 100644 c/src/lib/start/sh/Makefile.in delete mode 100644 c/src/lib/start/sh/configure.in delete mode 100644 c/src/lib/start/sh/start.S (limited to 'c/src/lib/start') diff --git a/c/src/lib/start/i960/Makefile.in b/c/src/lib/start/i960/Makefile.in deleted file mode 100644 index 30f1afcf02..0000000000 --- a/c/src/lib/start/i960/Makefile.in +++ /dev/null @@ -1,64 +0,0 @@ -# -# $Id$ -# - -@SET_MAKE@ -srcdir = @srcdir@ -top_srcdir = @top_srcdir@ -top_builddir = . - -RTEMS_ROOT = @RTEMS_ROOT@ -PROJECT_ROOT = @PROJECT_ROOT@ - -VPATH = @srcdir@ - -# C source names, if any, go here -- minus the .c -C_PIECES = -C_FILES = $(C_PIECES:%=%.c) -C_O_FILES = $(C_PIECES:%=${ARCH}/%.o) - -H_FILES = - -# 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) - -SRCS = $(C_FILES) $(H_FILES) $(S_FILES) -OBJS = $(C_O_FILES) $(S_O_FILES) - -include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg -include $(RTEMS_ROOT)/make/leaf.cfg - -INSTALL_CHANGE = @INSTALL_CHANGE@ - -PGM = ${ARCH}/start.o - -# -# (OPTIONAL) Add local stuff here using += -# - -DEFINES += -CPPFLAGS += -CFLAGS += - -LD_PATHS += -LD_LIBS += -LDFLAGS += - -# -# Add your list of files to delete here. The config files -# already know how to delete some stuff, so you may want -# to just run 'make clean' first to see what gets missed. -# 'make clobber' already includes 'make clean' -# - -CLEAN_ADDITIONS += -CLOBBER_ADDITIONS += - -all: ${ARCH} $(SRCS) $(OBJS) $(PGM) - $(INSTALL_VARIANT) -m 755 ${PGM} $(PROJECT_RELEASE)/lib - -Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status - cd $(top_builddir) \ - && CONFIG_FILES=$@ CONFIG_HEADERS= $(SHELL) ./config.status diff --git a/c/src/lib/start/i960/configure.in b/c/src/lib/start/i960/configure.in deleted file mode 100644 index 0ae4136f02..0000000000 --- a/c/src/lib/start/i960/configure.in +++ /dev/null @@ -1,35 +0,0 @@ -dnl Process this file with autoconf to produce a configure script. -dnl -dnl $Id$ - -AC_PREREQ(2.13) -AC_INIT(start.S) -RTEMS_TOP(../../../../..) -AC_CONFIG_AUX_DIR(../../../../..) - -RTEMS_CANONICAL_TARGET_CPU -AC_PROG_MAKE_SET -AC_PROG_INSTALL -# AM_INIT_AUTOMAKE(rtems-c-src-lib-start-i960,$RTEMS_VERSION,no) -AM_MAINTAINER_MODE - -RTEMS_ENABLE_LIBCDIR -RTEMS_ENABLE_BARE - -RTEMS_ENV_RTEMSBSP - -RTEMS_CHECK_CPU -RTEMS_CANONICAL_HOST - -RTEMS_PROJECT_ROOT - -dnl check target cc -RTEMS_PROG_CC_FOR_TARGET -RTEMS_CANONICALIZE_TOOLS - -RTEMS_CHECK_CUSTOM_BSP(RTEMS_BSP) - -# try to explicitly list a Makefile here -AC_OUTPUT( -Makefile -) diff --git a/c/src/lib/start/i960/start.S b/c/src/lib/start/i960/start.S deleted file mode 100644 index 1d6055363a..0000000000 --- a/c/src/lib/start/i960/start.S +++ /dev/null @@ -1,110 +0,0 @@ -/* 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/start/mips64orion/Makefile.in b/c/src/lib/start/mips64orion/Makefile.in deleted file mode 100644 index 7ba478212b..0000000000 --- a/c/src/lib/start/mips64orion/Makefile.in +++ /dev/null @@ -1,64 +0,0 @@ -# -# $Id$ -# - -@SET_MAKE@ -srcdir = @srcdir@ -top_srcdir = @top_srcdir@ -top_builddir = . - -RTEMS_ROOT = @RTEMS_ROOT@ -PROJECT_ROOT = @PROJECT_ROOT@ - -VPATH = @srcdir@ - -# C source names, if any, go here -- minus the .c -C_PIECES = -C_FILES = $(C_PIECES:%=%.c) -C_O_FILES = $(C_PIECES:%=${ARCH}/%.o) - -H_FILES = - -# Assembly source names, if any, go here -- minus the .S -S_PIECES = idt_csu -S_FILES = $(S_PIECES:%=%.S) -S_O_FILES = $(S_FILES:%.S=${ARCH}/%.o) - -SRCS = $(C_FILES) $(CC_FILES) $(H_FILES) $(S_FILES) -OBJS = $(C_O_FILES) $(CC_O_FILES) $(S_O_FILES) - -include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg -include $(RTEMS_ROOT)/make/leaf.cfg - -INSTALL_CHANGE = @INSTALL_CHANGE@ - -PGM = ${ARCH}/idt_csu.o - -# -# (OPTIONAL) Add local stuff here using += -# - -DEFINES += -CPPFLAGS += -CFLAGS += - -LD_PATHS += -LD_LIBS += -LDFLAGS += - -# -# Add your list of files to delete here. The config files -# already know how to delete some stuff, so you may want -# to just run 'make clean' first to see what gets missed. -# 'make clobber' already includes 'make clean' -# - -CLEAN_ADDITIONS += -CLOBBER_ADDITIONS += - -all: ${ARCH} $(SRCS) $(OBJS) $(PGM) - $(INSTALL_VARIANT) -m 755 ${PGM} $(PROJECT_RELEASE)/lib - -Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status - cd $(top_builddir) \ - && CONFIG_FILES=$@ CONFIG_HEADERS= $(SHELL) ./config.status diff --git a/c/src/lib/start/mips64orion/configure.in b/c/src/lib/start/mips64orion/configure.in deleted file mode 100644 index 3befd1a55a..0000000000 --- a/c/src/lib/start/mips64orion/configure.in +++ /dev/null @@ -1,35 +0,0 @@ -dnl Process this file with autoconf to produce a configure script. -dnl -dnl $Id$ - -AC_PREREQ(2.13) -AC_INIT(idt_csu.S) -RTEMS_TOP(../../../../..) -AC_CONFIG_AUX_DIR(../../../../..) - -RTEMS_CANONICAL_TARGET_CPU -AC_PROG_MAKE_SET -AC_PROG_INSTALL -# AM_INIT_AUTOMAKE(rtems-c-src-lib-start-mips64orion,$RTEMS_VERSION,no) -AM_MAINTAINER_MODE - -RTEMS_ENABLE_LIBCDIR -RTEMS_ENABLE_BARE - -RTEMS_ENV_RTEMSBSP - -RTEMS_CHECK_CPU -RTEMS_CANONICAL_HOST - -RTEMS_PROJECT_ROOT - -dnl check target cc -RTEMS_PROG_CC_FOR_TARGET -RTEMS_CANONICALIZE_TOOLS - -RTEMS_CHECK_CUSTOM_BSP(RTEMS_BSP) - -# try to explicitly list a Makefile here -AC_OUTPUT( -Makefile -) diff --git a/c/src/lib/start/mips64orion/idt_csu.S b/c/src/lib/start/mips64orion/idt_csu.S deleted file mode 100644 index 88646f520f..0000000000 --- a/c/src/lib/start/mips64orion/idt_csu.S +++ /dev/null @@ -1,299 +0,0 @@ -/* - -Based upon IDT provided code with the following release: - -This source code has been made available to you by IDT on an AS-IS -basis. Anyone receiving this source is licensed under IDT copyrights -to use it in any way he or she deems fit, including copying it, -modifying it, compiling it, and redistributing it either with or -without modifications. No license under IDT patents or patent -applications is to be implied by the copyright license. - -Any user of this software should understand that IDT cannot provide -technical support for this software and will not be responsible for -any consequences resulting from the use of this software. - -Any person who transfers this source code or any derivative work must -include the IDT copyright notice, this paragraph, and the preceeding -two paragraphs in the transferred software. - -COPYRIGHT IDT CORPORATION 1996 -LICENSED MATERIAL - PROGRAM PROPERTY OF IDT - - $Id$ -*/ - -/************************************************************************* -** -** Copyright 1991-95 Integrated Device Technology, Inc. -** All Rights Reserved -** -** idt_csu.S -- IDT stand alone startup code -** -**************************************************************************/ -#include -#include -#include - - -.extern _fbss,4 /* this is defined by the linker */ -.extern end,4 /* this is defined by the linker */ - -.lcomm sim_mem_cfg_struct,12 - - .text - - -#define TMP_STKSIZE 1024 - -/************************************************************************** -** -** start - Typicl standalone start up code required for R3000/R4000 -** -** -** 1) Initialize the STATUS Register -** a) Clear parity error bit -** b) Set co_processor 1 usable bit ON -** c) Clear all IntMask Enables -** d) Set kernel/disabled mode -** 2) Initialize Cause Register -** a) clear software interrupt bits -** 3) Determine FPU installed or not -** if not, clear CoProcessor 1 usable bit -** 4) Clear bss area -** 5) MUST allocate temporary stack until memory size determined -** It MUST be uncached to prevent overwriting when caches are cleared -** 6) Install exception handlers -** 7) Determine memory and cache sizes -** 8) Establish permanent stack (cached or uncached as defined by bss) -** 9) Flush Instruction and Data caches -** 10) If there is a Translation Lookaside Buffer, Clear the TLB -** 11) Execute initialization code if the IDT/c library is to be used -** -** 12) Jump to user's "main()" -** 13) Jump to promexit -** -** IDT/C 5.x defines _R3000, IDT/C 6.x defines _R4000 internally. -** This is used to mark code specific to R3xxx or R4xxx processors. -** IDT/C 6.x defines __mips to be the ISA level for which we're -** generating code. This is used to make sure the stack etc. is -** double word aligned, when using -mips3 (default) or -mips2, -** when compiling with IDT/C6.x -** -***************************************************************************/ - -FRAME(start,sp,0,ra) - - .set noreorder -#ifdef _R3000 - li v0,SR_PE|SR_CU1 /* reset parity error and set */ - /* cp1 usable */ -#endif -#ifdef _R4000 -#if __mips==3 || defined(R4650) - li v0,SR_CU1|SR_DE|SR_FR /* initally clear ERL, enable FPA 64bit regs*/ - /* 4650: Need fr to be set anyway */ -#else - li v0,SR_CU1|SR_DE /* initally clear ERL, enable FPA 32bit regs*/ -#endif mips3 -#endif - - mtc0 v0,C0_SR /* clr IntMsks/ kernel/disabled mode */ - nop - mtc0 zero,C0_CAUSE /* clear software interrupts */ - nop - -#ifdef _R4000 - li v0,CFG_C_NONCOHERENT # initialise default cache mode - mtc0 v0,C0_CONFIG -#endif - -/* -** check to see if an fpu is really plugged in -*/ - li t3,0xaaaa5555 /* put a's and 5's in t3 */ - mtc1 t3,fp0 /* try to write them into fp0 */ - mtc1 zero,fp1 /* try to write zero in fp */ - mfc1 t0,fp0 - mfc1 t1,fp1 - nop - bne t0,t3,1f /* branch if no match */ - nop - bne t1,zero,1f /* double check for positive id */ - nop - /* We have a FPU. clear fcsr */ - ctc1 zero, fcr31 - j 2f /* status register already correct */ - nop -1: -#ifdef _R3000 - li v0, SR_PE /* reset parity error/NO cp1 usable */ -#endif - -#ifdef _R4000 - li v0,SR_DE /* clear ERL and disable FPA */ -#endif - - mtc0 v0, C0_SR /* reset status register */ -2: - la gp, _gp - - la v0,_fbss /* clear bss before using it */ - la v1,end /* end of bss */ -3: sw zero,0(v0) - bltu v0,v1,3b - add v0,4 - - -/************************************************************************ -** -** Temporary Stack - needed to handle stack saves until -** memory size is determined and permanent stack set -** -** MUST be uncached to avoid confusion at cache -** switching during memory sizing -** -*************************************************************************/ -#if __mips==3 - /* For MIPS 3, we need to be sure that the stack is aligned on a - * double word boundary. - */ - andi t0, v0, 0x7 - beqz t0, 11f /* Last three bits Zero, already aligned */ - nop - add v0, 4 -11: -#endif - - or v0, K1BASE /* switch to uncached */ - add v1, v0, TMP_STKSIZE /* end of bss + length of tmp stack */ - sub v1, v1, (4*4) /* overhead */ - move sp, v1 /* set sp to top of stack */ -4: sw zero, 0(v0) - bltu v0, v1, 4b /* clear out temp stack */ - add v0, 4 - - jal init_exc_vecs /* install exception handlers */ - nop /* MUST do before memory probes */ - - la v0, 5f - li v1, K1BASE /* force into uncached space */ - or v0, v1 /* during memory/cache probes */ - j v0 - nop -5: - la a0, sim_mem_cfg_struct - jal sim_mem_cfg /* Make SIM call to get mem size */ - nop - la a0, sim_mem_cfg_struct - lw a0, 0(a0) /* Get memory size from struct */ -#ifdef _R3000 - jal config_Icache - nop - jal config_Dcache /* determine size of D & I caches */ - nop -#endif -#ifdef _R4000 - jal config_cache /* determine size of D & I caches */ - nop -#endif - - move v0, a0 /* mem_size */ - -#if __mips==3 - /* For MIPS 3, we need to be sure that the stack (and hence v0 - * here) is aligned on a double word boundary. - */ - andi t0, v0, 0x7 - beqz t0, 12f /* Last three bits Zero, already aligned */ - nop - subu v0, 4 /* mem_size was not aligned on doubleword bdry????*/ -12: -#endif - - - -/************************************************************************** -** -** Permanent Stack - now know top of memory, put permanent stack there -** -***************************************************************************/ - - la t2, _fbss /* cache mode as linked */ - and t2, 0xF0000000 /* isolate segment */ - la t1, 6f - j t1 /* back to original cache mode */ - nop -6: - or v0, t2 /* stack back to original cache mode */ - addiu v0,v0,-16 /* overhead */ - move sp, v0 /* now replace count w top of memory */ - move v1, v0 - subu v1, P_STACKSIZE /* clear requested stack size */ - -7: sw zero, 0(v1) /* clear P_STACKSIZE stack */ - bltu v1,v0,7b - add v1, 4 - .set reorder - -#ifdef _R3000 - jal flush_Icache - jal flush_Dcache /* flush Data & Instruction caches */ -#endif -#ifdef _R4000 - jal flush_cache_nowrite /* flush Data & Instruction caches */ -#endif - - - -/************************************************************************** -** -** If this chip supports a Translation Lookaside Buffer, clear it -** -***************************************************************************/ - - .set noreorder - mfc0 t1, C0_SR /* look at Status Register */ - nop - .set reorder -#ifdef _R3000 - li t2, SR_TS /* TLB Shutdown bit */ - and t1,t2 /* TLB Shutdown if 1 */ - bnez t1, 8f /* skip clearing if no TLB */ -#endif - -#ifndef R4650 - jal init_tlb /* clear the tlb */ -#endif - - -/************************************************************************ -** -** Initialization required if using IDT/c or libc.a, standard C Lib -** -** can SKIP if not necessary for application -** -************************************************************************/ -8: - - jal idtsim_init_sbrk - jal idtsim_init_file -/*********************** END I/O initialization **********************/ - - - jal main - - jal idtsim_promexit - -ENDFRAME(start) - - - .globl sim_mem_cfg -sim_mem_cfg: - .set noat - .set noreorder - li AT, (0xbfc00000+((55)*8)) - jr AT - nop - .set at - .set reorder diff --git a/c/src/lib/start/sh/Makefile.in b/c/src/lib/start/sh/Makefile.in deleted file mode 100644 index abb4b7dbe4..0000000000 --- a/c/src/lib/start/sh/Makefile.in +++ /dev/null @@ -1,69 +0,0 @@ -# -# $Id$ -# - -@SET_MAKE@ -srcdir = @srcdir@ -top_srcdir = @top_srcdir@ -top_builddir = . - -RTEMS_ROOT = @RTEMS_ROOT@ -PROJECT_ROOT = @PROJECT_ROOT@ - -VPATH = @srcdir@ - -PGMS = ${ARCH}/start.o - -# C source names, if any, go here -- minus the .c -C_PIECES = -C_FILES = $(C_PIECES:%=%.c) -C_O_FILES = $(C_PIECES:%=${ARCH}/%.o) - -H_FILES = - -# 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) - -SRCS = $(C_FILES) $(H_FILES) $(S_FILES) -OBJS = $(C_O_FILES) $(S_O_FILES) - -include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg -include $(RTEMS_ROOT)/make/leaf.cfg - -INSTALL_CHANGE = @INSTALL_CHANGE@ - -# -# (OPTIONAL) Add local stuff here using += -# - -DEFINES += -CPPFLAGS += -CFLAGS += - -LD_PATHS += -LD_LIBS += -LDFLAGS += - -# force optimization, unless start.o will not work -# CFLAGS_PROFILE= -# CFLAGS_DEBUG=-O3 -# CFLAGS_OPTIMIZE=-O3 - -# -# Add your list of files to delete here. The config files -# already know how to delete some stuff, so you may want -# to just run 'make clean' first to see what gets missed. -# 'make clobber' already includes 'make clean' -# - -CLEAN_ADDITIONS += -CLOBBER_ADDITIONS += - -all: ${ARCH} $(SRCS) $(OBJS) $(PGM) - @$(INSTALL_VARIANT) -m 755 ${PGMS} $(PROJECT_RELEASE)/lib - -Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status - cd $(top_builddir) \ - && CONFIG_FILES=$@ CONFIG_HEADERS= $(SHELL) ./config.status diff --git a/c/src/lib/start/sh/configure.in b/c/src/lib/start/sh/configure.in deleted file mode 100644 index 73579a97bc..0000000000 --- a/c/src/lib/start/sh/configure.in +++ /dev/null @@ -1,35 +0,0 @@ -dnl Process this file with autoconf to produce a configure script. -dnl -dnl $Id$ - -AC_PREREQ(2.13) -AC_INIT(start.S) -RTEMS_TOP(../../../../..) -AC_CONFIG_AUX_DIR(../../../../..) - -RTEMS_CANONICAL_TARGET_CPU -AC_PROG_MAKE_SET -AC_PROG_INSTALL -# AM_INIT_AUTOMAKE(rtems-c-src-lib-start-sh,$RTEMS_VERSION,no) -AM_MAINTAINER_MODE - -RTEMS_ENABLE_LIBCDIR -RTEMS_ENABLE_BARE - -RTEMS_ENV_RTEMSBSP - -RTEMS_CHECK_CPU -RTEMS_CANONICAL_HOST - -RTEMS_PROJECT_ROOT - -dnl check target cc -RTEMS_PROG_CC_FOR_TARGET -RTEMS_CANONICALIZE_TOOLS - -RTEMS_CHECK_CUSTOM_BSP(RTEMS_BSP) - -# try to explicitly list a Makefile here -AC_OUTPUT( -Makefile -) diff --git a/c/src/lib/start/sh/start.S b/c/src/lib/start/sh/start.S deleted file mode 100644 index eb4501bc66..0000000000 --- a/c/src/lib/start/sh/start.S +++ /dev/null @@ -1,94 +0,0 @@ -/* - * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and - * Bernd Becker (becker@faw.uni-ulm.de) - * - * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany - * - * This program 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. - * - * - * COPYRIGHT (c) 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) -SYM (start): - ! install the stack pointer - mov.l stack_k,r15 - - ! zero out bss - mov.l edata_k,r0 - mov.l end_k,r1 - mov #0,r2 -0: - mov.l r2,@r0 - add #4,r0 - cmp/ge r0,r1 - bt 0b - - ! copy the vector table from rom to ram - mov.l vects_k,r0 ! vectab - mov #0,r1 ! address of boot vector table - mov #0,r2 ! number of bytes copied - mov.w vects_size,r3 ! size of entries in vectab -1: - mov.l @r1+,r4 - mov.l r4,@r0 - add #4,r0 - add #1,r2 - cmp/hi r3,r2 - bf 1b - - mov.l vects_k,r0 ! update vbr to point to vectab - ldc r0,vbr - - ! call the mainline - mov #0,r4 ! argc - mov.l main_k,r0 - jsr @r0 - mov #0,r5 ! argv - - ! call exit - mov r0,r4 - mov.l exit_k,r0 - jsr @r0 - or r0,r0 - - END_CODE - - .align 2 -stack_k: - .long SYM(stack) -edata_k: - .long SYM(edata) -end_k: - .long SYM(end) -main_k: - .long SYM(boot_card) -exit_k: - .long SYM(exit) - -vects_k: - .long SYM(vectab) -vects_size: - .word 255 - -#ifdef __ELF__ - .section .stack,"aw" -#else - .section .stack -#endif -SYM(stack): - .long 0xdeaddead -- cgit v1.2.3