sim: igen: merge build into top level

This simplifies the build a bit (especially for deps in port subdirs),
and avoids recursive make.  This in turn speeds up the build, and sets
us up for multi-target.

1 files changed, 89 insertions, 0 deletions

diff --git a/sim/igen/local.mk b/sim/igen/local.mk
new file mode 100644
index 0000000..10f0f6d
--- /dev/null
+++ b/sim/igen/local.mk
@@ -0,0 +1,89 @@
+# The IGEN simulator generator for GDB, the GNU Debugger.
+#
+# Copyright 2002-2021 Free Software Foundation, Inc.
+#
+# Contributed by Andrew Cagney.
+#
+# This file is part of GDB.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# This makes sure igen is available before building the arch-subdirs which
+# need to run the igen tool.
+all-recursive: igen/igen$(EXEEXT)
+
+# Alias for developers.
+igen: %D%/igen$(EXEEXT)
+
+noinst_LIBRARIES += %D%/libigen.a
+%C%_libigen_a_SOURCES = \
+	%D%/table.c \
+	%D%/lf.c \
+	%D%/misc.c \
+	%D%/filter_host.c \
+	%D%/ld-decode.c \
+	%D%/ld-cache.c \
+	%D%/filter.c \
+	%D%/ld-insn.c \
+	%D%/gen-model.c \
+	%D%/gen-itable.c \
+	%D%/gen-icache.c \
+	%D%/gen-semantics.c \
+	%D%/gen-idecode.c \
+	%D%/gen-support.c \
+	%D%/gen-engine.c \
+	%D%/gen.c
+
+%C%_igen_SOURCES = %D%/igen.c
+%C%_igen_LDADD = %D%/libigen.a
+
+%D%/igen$(EXEEXT): $(%C%_igen_OBJECTS) $(%C%_igen_DEPENDENCIES) %D%/$(am__dirstamp)
+	$(AM_V_CCLD)$(LINK_FOR_BUILD) $(%C%_igen_OBJECTS) $(%C%_igen_LDADD)
+
+# igen is a build-time only tool.  Override the default rules for it.
+%D%/%.o: %D%/%.c
+	$(AM_V_CC)$(COMPILE_FOR_BUILD) -c $< -o $@
+
+# Build some of the files in standalone mode for developers of igen itself.
+%D%/%-main.o: %D%/%.c
+	$(AM_V_CC)$(COMPILE_FOR_BUILD) -DMAIN -c $< -o $@
+
+%C%_filter_SOURCES =
+%C%_filter_LDADD = %D%/filter-main.o %D%/libigen.a
+
+%C%_gen_SOURCES =
+%C%_gen_LDADD = %D%/gen-main.o %D%/libigen.a
+
+%C%_ld_cache_SOURCES =
+%C%_ld_cache_LDADD = %D%/ld-cache-main.o %D%/libigen.a
+
+%C%_ld_decode_SOURCES =
+%C%_ld_decode_LDADD = %D%/ld-decode-main.o %D%/libigen.a
+
+%C%_ld_insn_SOURCES =
+%C%_ld_insn_LDADD = %D%/ld-insn-main.o %D%/libigen.a
+
+%C%_table_SOURCES =
+%C%_table_LDADD = %D%/table-main.o %D%/libigen.a
+
+%C%_IGEN_TOOLS = \
+	%D%/igen \
+	%D%/filter \
+	%D%/gen \
+	%D%/ld-cache \
+	%D%/ld-decode \
+	%D%/ld-insn \
+	%D%/table
+EXTRA_PROGRAMS += $(%C%_IGEN_TOOLS)
+MOSTLYCLEANFILES += $(%C%_IGEN_TOOLS)