Add ddb-kseg0.ld and switch to kseg1 if sizing memory from kseg0
This commit is contained in:
Michael Meissner
parent
bd71a776e8
commit
b5b5b0d4de
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@ -1,3 +1,18 @@
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2001-10-17 Michael Meissner <meissner@redhat.com>
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* regs.S (K0BASE_ADDR,K1BASE_ADDR): Define as addresses to
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identify if a program is running in kernel segment 0.
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* cma101.c (__sizemem): If we are running in kernel segment 0,
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instead of kernel segment 1, use kernel segment 0 addresses which
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are uncached when sizing memory.
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* ddb-kseg0.ld: New file, clone of ddb.ld, except it links the
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program to run in kernel segment 0, instead of kernel segment 1.
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* configure.in: Treat ddb-kseg0.ld like ddb.ld.
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* configure: Regenerate.
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2001-09-15 Eric Christopher <echristo@redhat.com>
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* mips/configure.in (LIB_AC_PROG_CC): Fix typo in mipsisa32 to
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@ -1,7 +1,7 @@
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/*
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* cma101.c -- lo-level support for Cogent CMA101 development board.
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*
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* Copyright (c) 1996 Cygnus Support
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* Copyright (c) 1996, 2001 Cygnus Support
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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@ -187,8 +187,14 @@ __sizemem ()
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unsigned int baseorig;
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unsigned int sr;
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extern void *end;
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char *endptr = (char *)&end;
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int extra;
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/* If we are running in kernel segment 0 (possibly cached), try sizing memory
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in kernel segment 1 (uncached) to avoid some problems with monitors. */
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if (endptr >= K0BASE_ADDR && endptr < K1BASE_ADDR)
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endptr = (endptr - K0BASE_ADDR) + K1BASE_ADDR;
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INTDISABLE(sr,baseorig); /* disable all interrupt masks */
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__default_buserr_handler();
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@ -200,8 +206,8 @@ __sizemem ()
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for an int pointer, so we adjust the address to make sure it is safe.
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We use void * arithmetic to avoid accidentally truncating the pointer. */
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extra = ((int) &end & (sizeof (int) - 1));
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base = ((void *) &end + sizeof (int) - extra);
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extra = ((int) endptr & (sizeof (int) - 1));
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base = ((void *) endptr + sizeof (int) - extra);
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baseorig = *base;
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*base = SM_PATTERN;
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@ -28,6 +28,7 @@ program_suffix=NONE
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program_transform_name=s,x,x,
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silent=
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site=
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sitefile=
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srcdir=
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target=NONE
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verbose=
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@ -142,6 +143,7 @@ Configuration:
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--help print this message
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--no-create do not create output files
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--quiet, --silent do not print \`checking...' messages
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--site-file=FILE use FILE as the site file
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--version print the version of autoconf that created configure
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Directory and file names:
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--prefix=PREFIX install architecture-independent files in PREFIX
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@ -312,6 +314,11 @@ EOF
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-site=* | --site=* | --sit=*)
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site="$ac_optarg" ;;
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-site-file | --site-file | --site-fil | --site-fi | --site-f)
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ac_prev=sitefile ;;
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-site-file=* | --site-file=* | --site-fil=* | --site-fi=* | --site-f=*)
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sitefile="$ac_optarg" ;;
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-srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
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ac_prev=srcdir ;;
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-srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
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@ -477,6 +484,7 @@ fi
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srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
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# Prefer explicitly selected file to automatically selected ones.
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if test -z "$sitefile"; then
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if test -z "$CONFIG_SITE"; then
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if test "x$prefix" != xNONE; then
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CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
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@ -484,6 +492,9 @@ if test -z "$CONFIG_SITE"; then
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CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
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fi
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fi
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else
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CONFIG_SITE="$sitefile"
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fi
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for ac_site_file in $CONFIG_SITE; do
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if test -r "$ac_site_file"; then
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echo "loading site script $ac_site_file"
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@ -583,7 +594,7 @@ else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
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fi
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echo $ac_n "checking host system type""... $ac_c" 1>&6
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echo "configure:587: checking host system type" >&5
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echo "configure:598: checking host system type" >&5
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host_alias=$host
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case "$host_alias" in
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@ -604,7 +615,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
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echo "$ac_t""$host" 1>&6
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echo $ac_n "checking target system type""... $ac_c" 1>&6
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echo "configure:608: checking target system type" >&5
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echo "configure:619: checking target system type" >&5
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target_alias=$target
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case "$target_alias" in
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@ -622,7 +633,7 @@ target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
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echo "$ac_t""$target" 1>&6
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echo $ac_n "checking build system type""... $ac_c" 1>&6
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echo "configure:626: checking build system type" >&5
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echo "configure:637: checking build system type" >&5
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build_alias=$build
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case "$build_alias" in
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@ -676,7 +687,7 @@ test "$program_transform_name" = "" && program_transform_name="s,x,x,"
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# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
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# ./install, which can be erroneously created by make from ./install.sh.
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echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
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echo "configure:680: checking for a BSD compatible install" >&5
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echo "configure:691: checking for a BSD compatible install" >&5
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if test -z "$INSTALL"; then
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if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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@ -740,7 +751,7 @@ test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
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# Extract the first word of "gcc", so it can be a program name with args.
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set dummy gcc; ac_word=$2
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echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
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echo "configure:744: checking for $ac_word" >&5
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echo "configure:755: checking for $ac_word" >&5
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if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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@ -770,7 +781,7 @@ if test -z "$CC"; then
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# Extract the first word of "cc", so it can be a program name with args.
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set dummy cc; ac_word=$2
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echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
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echo "configure:774: checking for $ac_word" >&5
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echo "configure:785: checking for $ac_word" >&5
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if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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@ -819,7 +830,7 @@ fi
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fi
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echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
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echo "configure:823: checking whether we are using GNU C" >&5
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echo "configure:834: checking whether we are using GNU C" >&5
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if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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@ -828,7 +839,7 @@ else
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yes;
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#endif
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EOF
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if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:832: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
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if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:843: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
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ac_cv_prog_gcc=yes
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else
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ac_cv_prog_gcc=no
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@ -843,7 +854,7 @@ if test $ac_cv_prog_gcc = yes; then
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ac_save_CFLAGS="$CFLAGS"
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CFLAGS=
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echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
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echo "configure:847: checking whether ${CC-cc} accepts -g" >&5
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echo "configure:858: checking whether ${CC-cc} accepts -g" >&5
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if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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@ -879,7 +890,7 @@ LD=${LD-ld}
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# Extract the first word of "ranlib", so it can be a program name with args.
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set dummy ranlib; ac_word=$2
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echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
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echo "configure:883: checking for $ac_word" >&5
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echo "configure:894: checking for $ac_word" >&5
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if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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@ -926,7 +937,7 @@ case "${target}" in
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mips64vr5*-*-*)
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part_specific_obj="vr5xxx.o cma101.o"
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part_specific_defines=-DR5000
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script_list="idt pmon ddb lsi idtecoff nullmon"
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script_list="idt pmon ddb ddb-kseg0 lsi idtecoff nullmon"
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bsp_list="libidt.a libpmon.a liblsi.a libnullmon.a"
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;;
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mipsisa32*-*-*)
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@ -938,7 +949,7 @@ case "${target}" in
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*)
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part_specific_obj="vr4300.o cma101.o"
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part_specific_defines=
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script_list="idt pmon ddb lsi idtecoff nullmon"
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script_list="idt pmon ddb ddb-kseg0 lsi idtecoff nullmon"
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bsp_list="libidt.a libpmon.a liblsi.a libnullmon.a"
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;;
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esac
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@ -101,7 +101,7 @@ case "${target}" in
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mips64vr5*-*-*)
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part_specific_obj="vr5xxx.o cma101.o"
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part_specific_defines=-DR5000
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script_list="idt pmon ddb lsi idtecoff nullmon"
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script_list="idt pmon ddb ddb-kseg0 lsi idtecoff nullmon"
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bsp_list="libidt.a libpmon.a liblsi.a libnullmon.a"
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;;
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mipsisa32*-*-*)
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@ -113,7 +113,7 @@ case "${target}" in
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*)
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part_specific_obj="vr4300.o cma101.o"
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part_specific_defines=
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script_list="idt pmon ddb lsi idtecoff nullmon"
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script_list="idt pmon ddb ddb-kseg0 lsi idtecoff nullmon"
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bsp_list="libidt.a libpmon.a liblsi.a libnullmon.a"
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;;
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esac
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@ -0,0 +1,154 @@
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/* The following TEXT start address leaves space for the monitor
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workspace. */
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ENTRY(_start)
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OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-littlemips")
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GROUP(-lc -lpmon -lgcc)
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SEARCH_DIR(.)
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__DYNAMIC = 0;
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/*
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* Allocate the stack to be at the top of memory, since the stack
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* grows down
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*/
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PROVIDE (__stack = 0);
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/* PROVIDE (__global = 0); */
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/*
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* Initalize some symbols to be zero so we can reference them in the
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* crt0 without core dumping. These functions are all optional, but
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* we do this so we can have our crt0 always use them if they exist.
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* This is so BSPs work better when using the crt0 installed with gcc.
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* We have to initalize them twice, so we multiple object file
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* formats, as some prepend an underscore.
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*/
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PROVIDE (hardware_init_hook = 0);
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PROVIDE (software_init_hook = 0);
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SECTIONS
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{
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. = 0x80100000;
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.text : {
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_ftext = . ;
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*(.init)
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eprol = .;
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*(.text)
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*(.text.*)
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*(.gnu.linkonce.t*)
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*(.mips16.fn.*)
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*(.mips16.call.*)
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PROVIDE (__runtime_reloc_start = .);
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*(.rel.sdata)
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PROVIDE (__runtime_reloc_stop = .);
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*(.fini)
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etext = .;
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_etext = .;
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}
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.ctors :
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{
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/* gcc uses crtbegin.o to find the start of
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the constructors, so we make sure it is
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first. Because this is a wildcard, it
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doesn't matter if the user does not
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actually link against crtbegin.o; the
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linker won't look for a file to match a
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wildcard. The wildcard also means that it
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doesn't matter which directory crtbegin.o
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is in. */
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KEEP (*crtbegin.o(.ctors))
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/* We don't want to include the .ctor section from
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from the crtend.o file until after the sorted ctors.
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The .ctor section from the crtend file contains the
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end of ctors marker and it must be last */
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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}
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.dtors :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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}
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. = .;
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.rdata : {
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*(.rdata)
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*(.rodata)
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*(.rodata.*)
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*(.gnu.linkonce.r*)
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}
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_fdata = ALIGN(16);
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.data : {
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*(.data)
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*(.data.*)
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*(.gnu.linkonce.d*)
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}
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. = ALIGN(8);
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_gp = . + 0x8000;
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__global = _gp;
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.lit8 : {
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*(.lit8)
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}
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.lit4 : {
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*(.lit4)
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}
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.sdata : {
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*(.sdata)
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*(.sdata.*)
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*(.gnu.linkonce.s*)
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}
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. = ALIGN(4);
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edata = .;
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_edata = .;
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_fbss = .;
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.sbss : {
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*(.sbss)
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*(.scommon)
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}
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.bss : {
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_bss_start = . ;
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*(.bss)
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*(COMMON)
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}
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end = .;
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_end = .;
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/* DWARF debug sections.
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Symbols in the DWARF debugging sections are relative to
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the beginning of the section so we begin them at 0. */
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/* DWARF 1 */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2 */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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/* SGI/MIPS DWARF 2 extensions */
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.debug_weaknames 0 : { *(.debug_weaknames) }
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.debug_funcnames 0 : { *(.debug_funcnames) }
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.debug_typenames 0 : { *(.debug_typenames) }
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.debug_varnames 0 : { *(.debug_varnames) }
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}
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@ -56,8 +56,12 @@
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#define K0BASE 0x80000000
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#ifndef __mips64
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#define K1BASE 0xA0000000
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#define K0BASE_ADDR ((char *)K0BASE)
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#define K1BASE_ADDR ((char *)K1BASE)
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#else
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#define K1BASE 0xFFFFFFFFA0000000LL
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#define K0BASE_ADDR ((char *)0xFFFFFFFF80000000LL)
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#define K1BASE_ADDR ((char *)K1BASE)
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#endif
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#define PHYS_TO_K1(a) ((unsigned)(a) | K1BASE)
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