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Moved start code from lib/start to libbsp.

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This commit is contained in:
Joel Sherrill
1999-11-16 13:55:35 +00:00
parent 1d04e1673e
commit 25f705eebf
5 changed files with 0 additions and 274 deletions
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12
c/src/lib/start/Makefile.am
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@@ -1,12 +0,0 @@
##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
EXTRA_DIST = README
SUBDIRS = @RTEMS_CPU_STARTdir@
include $(top_srcdir)/../../../automake/subdirs.am
include $(top_srcdir)/../../../automake/local.am

10
c/src/lib/start/README
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@@ -1,10 +0,0 @@
$Id$
For each processor there may be some start up code
(like crt.o) in the appropriate entry subdirectory. This
entry code transfers control to target board specific
code).
For some processors this code exists in some external (to RTEMS)
library such as libgloss or the host system (for example the hppa1.1
and UNIX cpu's)

64
c/src/lib/start/m68k/Makefile.in
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@@ -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@
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 +=
#
# 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

35
c/src/lib/start/m68k/configure.in
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@@ -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-m68k,$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
)

153
c/src/lib/start/m68k/start.S
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@@ -1,153 +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"
#if (M68K_COLDFIRE_ARCH == 0) /* All ColdFire BSPs must provide their own start vector */
BEGIN_CODE
| Default entry points for:
PUBLIC (start) | GNU
PUBLIC (M68Kvec) | Vector Table
SYM (start):
SYM (M68Kvec): | standard location for vectors
nop | for linkers with problem
| location zero
jmp SYM (start_around)
/*
* We can use the following space as our vector table
* if the CPU has a VBR or we can save vector table in it
* if the CPU does not.
*/
.space 4088 | to avoid initial intr stack
| from 135BUG on MVME13?
| and start code at 0x4000
SYM (vectors):
.space 1016 | reserve space for rest of vectors
#if ( M68K_HAS_SEPARATE_STACKS == 1 )
SYM (lowintstack):
.space 4092 | reserve for interrupt stack
SYM (hiintstack):
.space 4 | end of interrupt stack
#endif
PUBLIC (start_around)
SYM (start_around):
move.w sr, SYM (initial_sr)
oriw #0x3700,sr | SUPV MODE,INTERRUPTS OFF!!!
#if ( M68K_HAS_SEPARATE_STACKS == 1 )
movec isp,a0
move.l a0, SYM (initial_isp)
movec usp,a0
move.l a0, SYM (initial_usp)
movec msp,a0
move.l a0, SYM (initial_msp)
#else
move.l a7, SYM (initial_msp)
#endif
|
| zero out uninitialized data area
|
zerobss:
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
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
/*
* RTEMS should maintain a separate interrupt stack on CPUs
* without one in hardware. This is currently not supported
* on versions of the m68k without a HW intr stack.
*/
#if ( M68K_HAS_SEPARATE_STACKS == 1 )
lea SYM (hiintstack),a0 | a0 = high end of intr stack
movec a0,isp | set interrupt stack
#endif
movel #0,a7@- | push environp
movel #0,a7@- | push argv
movel #0,a7@- | push argc
jsr SYM (boot_card)
addl #12,a7
#if ( M68K_HAS_SEPARATE_STACKS == 1 )
move.l SYM (initial_isp),a0
movec a0,isp
move.l SYM (initial_usp),a0
movec a0,usp
move.l SYM (initial_msp),a0
movec a0,msp
#else
movea.l SYM (initial_msp),a7
#endif
move.w SYM (initial_sr),sr
rts
END_CODE
BEGIN_DATA
PUBLIC (start_frame)
SYM (start_frame):
.space 4,0
END_DATA
BEGIN_BSS
PUBLIC (environ)
.align 2
SYM (environ):
.long 0
PUBLIC (initial_isp)
SYM (initial_isp):
.space 4
PUBLIC (initial_msp)
SYM (initial_msp):
.space 4
PUBLIC (initial_usp)
SYM (initial_usp):
.space 4
PUBLIC (initial_sr)
SYM (initial_sr):
.space 2
END_DATA
#endif
END