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c0c25232da
Automake will run each subdir individually before moving on to the next one. This means that the linking phase, a single threaded process, will not run in parallel with anything else. When we have to link ~32 ports, that's 32 link steps that don't take advantage of parallel systems. On my really old 4-core system, this cuts a multi-target build from ~60 sec to ~30 sec. We eventually want to move all compile+link steps to this common dir anyways, so might as well move linking now for a nice speedup. We use noinst_PROGRAMS instead of bin_PROGRAMS because we're taking care of the install ourselves rather than letting automake process it.
49 lines
1.6 KiB
Makefile
49 lines
1.6 KiB
Makefile
## See sim/Makefile.am
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##
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## Copyright (C) 2017-2022 Free Software Foundation, Inc.
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>.
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%C%_run_SOURCES =
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%C%_run_LDADD = \
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%D%/nrun.o \
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%D%/libsim.a \
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$(SIM_COMMON_LIBS)
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noinst_PROGRAMS += %D%/run
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%C%docdir = $(docdir)/%C%
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%C%doc_DATA = %D%/README
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%C%_BUILD_OUTPUTS = \
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%D%/eng.h \
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%D%/mloop.c \
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%D%/stamp-mloop
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## This makes sure build tools are available before building the arch-subdirs.
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SIM_ALL_RECURSIVE_DEPS += $(%C%_BUILD_OUTPUTS)
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## FIXME: Use of `mono' is wip.
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%D%/mloop.c %D%/eng.h: %D%/stamp-mloop ; @true
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%D%/stamp-mloop: $(srccom)/genmloop.sh %D%/mloop.in
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$(AM_V_GEN)$(SHELL) $(srccom)/genmloop.sh -shell $(SHELL) \
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-mono -fast -pbb -switch sem-switch.c \
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-cpu or1k32bf \
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-infile $(srcdir)/%D%/mloop.in -outfile-prefix %D%/
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$(AM_V_at)$(SHELL) $(srcroot)/move-if-change %D%/eng.hin %D%/eng.h
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$(AM_V_at)$(SHELL) $(srcroot)/move-if-change %D%/mloop.cin %D%/mloop.c
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$(AM_V_at)touch $@
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MOSTLYCLEANFILES += $(%C%_BUILD_OUTPUTS)
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