diff options
Diffstat (limited to 'mcon/U/models.U')
| -rw-r--r-- | mcon/U/models.U | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/mcon/U/models.U b/mcon/U/models.U new file mode 100644 index 0000000..9675500 --- /dev/null +++ b/mcon/U/models.U @@ -0,0 +1,214 @@ +?RCS: $Id: models.U 167 2013-05-08 17:58:00Z rmanfredi $ +?RCS: +?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic License, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic License; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?RCS: $Log: models.U,v $ +?RCS: Revision 3.0.1.2 1997/02/28 16:13:17 ram +?RCS: patch61: added ?F: metalint hint +?RCS: +?RCS: Revision 3.0.1.1 1993/08/25 14:02:39 ram +?RCS: patch6: added default for large +?RCS: +?RCS: Revision 3.0 1993/08/18 12:09:17 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:models split small medium large huge: test cat Myread sysman Oldconfig \ + Loc Warn contains rm +?MAKE: -pick add $@ %< +?S:models: +?S: This variable contains the list of memory models supported by this +?S: system. Possible component values are none, split, unsplit, small, +?S: medium, large, and huge. The component values are space separated. +?S:. +?S:split: +?S: This variable contains a flag which will tell the C compiler and loader +?S: to produce a program that will run in separate I and D space, for those +?S: machines that support separation of instruction and data space. It is +?S: up to the Makefile to use this. +?S:. +?S:small: +?S: This variable contains a flag which will tell the C compiler and loader +?S: to produce a program running with a small memory model. It is up to +?S: the Makefile to use this. +?S:. +?S:medium: +?S: This variable contains a flag which will tell the C compiler and loader +?S: to produce a program running with a medium memory model. If the +?S: medium model is not supported, contains the flag to produce large +?S: model programs. It is up to the Makefile to use this. +?S:. +?S:large: +?S: This variable contains a flag which will tell the C compiler and loader +?S: to produce a program running with a large memory model. It is up to +?S: the Makefile to use this. +?S:. +?S:huge: +?S: This variable contains a flag which will tell the C compiler and loader +?S: to produce a program running with a huge memory model. If the +?S: huge model is not supported, contains the flag to produce large +?S: model programs. It is up to the Makefile to use this. +?S:. +?T:unsplit tans modelcc +?F:!pdp11 +?D:large='' +?LINT:extern cc +: see what memory models we can support +case "$models" in +'') +?X: We may not use Cppsym or we get a circular dependency through cc. +?X: But this should work regardless of which cc we eventually use. + $cat >pdp11.c <<'EOP' +int main(void) { +#ifdef pdp11 + return 0; +#else + return 1; +#endif +} +EOP +?X: Run cc in a subshell in case they don't have a 'cc' command. +?X: Presumably they do have gcc or something. + case "$cc" in + '') modelcc="$cc" ;; + *) modelcc="cc" ;; + esac + ( $modelcc -o pdp11 pdp11.c ) >/dev/null 2>&1 + if $test -f pdp11 && ./pdp11 2>/dev/null; then + dflt='unsplit split' + else + tans=`./loc . X /lib/small /lib/large /usr/lib/small /usr/lib/large /lib/medium /usr/lib/medium /lib/huge` + case "$tans" in + X) dflt='none';; + *) if $test -d /lib/small || $test -d /usr/lib/small; then + dflt='small' + else + dflt='' + fi + if $test -d /lib/medium || $test -d /usr/lib/medium; then + dflt="$dflt medium" + fi + if $test -d /lib/large || $test -d /usr/lib/large; then + dflt="$dflt large" + fi + if $test -d /lib/huge || $test -d /usr/lib/huge; then + dflt="$dflt huge" + fi + esac + fi;; +*) dflt="$models";; +esac +$cat <<EOM + +Some systems have different model sizes. On most systems they are called +small, medium, large, and huge. On the PDP11 they are called unsplit and +split. If your system doesn't support different memory models, say "none". +If you wish to force everything to one memory model, say "none" here and +put the appropriate flags later when it asks you for other cc and ld flags. +Venix systems may wish to put "none" and let the compiler figure things out. +(In the following question multiple model names should be space separated.) + +The default for most systems is "none". + +EOM +rp="Which memory models are supported?" +. ./myread +models="$ans" + +case "$models" in +none) + small='' + medium='' + large='' + huge='' + unsplit='' + split='' + ;; +*split) + case "$split" in + '') if $contains '\-i' $sysman/ld.1 >/dev/null 2>&1 || \ + $contains '\-i' $sysman/cc.1 >/dev/null 2>&1; then + dflt='-i' + else + dflt='none' + fi;; + *) dflt="$split";; + esac + rp="What flag indicates separate I and D space?" + . ./myread + tans="$ans" + case "$tans" in + none) tans='';; + esac + split="$tans" + unsplit='';; +*large*|*small*|*medium*|*huge*) + case "$models" in + *large*) + case "$large" in + '') dflt='-Ml';; + *) dflt="$large";; + esac + rp="What flag indicates large model?" + . ./myread + tans="$ans" + case "$tans" in + none) tans=''; + esac + large="$tans";; + *) large='';; + esac + case "$models" in + *huge*) case "$huge" in + '') dflt='-Mh';; + *) dflt="$huge";; + esac + rp="What flag indicates huge model?" + . ./myread + tans="$ans" + case "$tans" in + none) tans=''; + esac + huge="$tans";; + *) huge="$large";; + esac + case "$models" in + *medium*) case "$medium" in + '') dflt='-Mm';; + *) dflt="$medium";; + esac + rp="What flag indicates medium model?" + . ./myread + tans="$ans" + case "$tans" in + none) tans=''; + esac + medium="$tans";; + *) medium="$large";; + esac + case "$models" in + *small*) case "$small" in + '') dflt='none';; + *) dflt="$small";; + esac + rp="What flag indicates small model?" + . ./myread + tans="$ans" + case "$tans" in + none) tans=''; + esac + small="$tans";; + *) small='';; + esac + ;; +*) + ./warn "Unrecognized memory models--you may have to edit Makefile.SH" 4>&4 + ;; +esac +$rm -f pdp11.* pdp11 + |