f78dc5724e
This commit does four things: * Adds "pb.ss" and "pb.c", which implement a portable bytecode backend and interpreter that is intended for bootstrapping. A single set of pb bootfiles can support bootstrapping on all platforms --- as long as the C compiler supports a 64-bit integer type. The pb machine supports foreign calls for only a small set of recognized prototypes, and it does not support foriegn callables. Use `./configure --pb` to build the pb variant. * Changes the kernel's casts between `ptr` and `void*` types. In a pb build, the `ptr` type can be a 64-bit integer type while `void*` is a 32-bit pointer type, so casts must go through an intermediate integer type. * Adjusts the compiler to accomodate run-time-determined endianness. Making the compiler agnostic to word size is not practical, but only a few pieces depend on the target machine's endianness, and those can generally be deferred to a run-time choice of byte-based operations. The one exception is that ftype bit fields are not allowed unless accompanied by an explicit endianness declaration. * Start reducing duplication among platform-specific makefiles. For example, `Mf-ta6osx` chains to `Mf-a6osx` to avoid repeating most of it. A lot more can be done here. original commit: 97533fa9d8b8400b0dc1a890768c7d30c91257e0
30 lines
1.0 KiB
Plaintext
30 lines
1.0 KiB
Plaintext
# Mf-boot.in
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# Copyright 1984-2017 Cisco Systems, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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bootfiles=$(addsuffix .boot, $(shell cd ../boot ; echo *))
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doit: $(bootfiles)
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%.boot:
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( cd .. ; ./workarea $* xc-$* )
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( cd ../xc-$*/s ; make -f Mf-cross base=../../$(workarea) m=$(m) xm=$* )
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mkdir -p ../boot/$*
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for x in `echo scheme.boot petite.boot scheme.h equates.h gc-oce.inc gc-ocd.inc vfasl.inc` ; do\
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if [ ! -h ../xc-$*/boot/$*/$$x ] ; then \
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mv -f ../xc-$*/boot/$*/$$x ../boot/$*/$$x ;\
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fi ;\
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done
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rm -rf ../xc-$*
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