Adjust makefiles to work with out-of-tree builds

This is based on work done by Larry Doolittle

Makefile

@@ -36,8 +36,10 @@ SMALL = 0
 
 all: top-all
 
-YOSYS_SRC := $(shell pwd)
-CXXFLAGS = -Wall -Wextra -ggdb -I"$(YOSYS_SRC)" -MD -D_YOSYS_ -fPIC -I$(DESTDIR)/include
+YOSYS_SRC := $(dir $(firstword $(MAKEFILE_LIST)))
+VPATH := $(YOSYS_SRC)
+
+CXXFLAGS = -Wall -Wextra -ggdb -I. -I"$(YOSYS_SRC)" -MD -D_YOSYS_ -fPIC -I$(DESTDIR)/include
 LDFLAGS = -L$(DESTDIR)/lib
 LDLIBS = -lstdc++ -lm
 SED = sed
@@ -190,7 +192,7 @@ define add_share_file
 EXTRA_TARGETS += $(subst //,/,$(1)/$(notdir $(2)))
 $(subst //,/,$(1)/$(notdir $(2))): $(2)
 	$$(P) mkdir -p $(1)
-	$$(Q) cp $(2) $(subst //,/,$(1)/$(notdir $(2)))
+	$$(Q) cp "$(YOSYS_SRC)"/$(2) $(subst //,/,$(1)/$(notdir $(2)))
 endef
 
 define add_include_file
@@ -250,10 +252,10 @@ OBJS += libs/minisat/SimpSolver.o
 OBJS += libs/minisat/Solver.o
 OBJS += libs/minisat/System.o
 
-include frontends/*/Makefile.inc
-include passes/*/Makefile.inc
-include backends/*/Makefile.inc
-include techlibs/*/Makefile.inc
+include $(YOSYS_SRC)/frontends/*/Makefile.inc
+include $(YOSYS_SRC)/passes/*/Makefile.inc
+include $(YOSYS_SRC)/backends/*/Makefile.inc
+include $(YOSYS_SRC)/techlibs/*/Makefile.inc
 
 else
 
@@ -297,20 +299,22 @@ libyosys.so: $(filter-out kernel/driver.o,$(OBJS))
 	$(P) $(CXX) -o libyosys.so -shared -Wl,-soname,libyosys.so $(LDFLAGS) $^ $(LDLIBS)
 
 %.o: %.cc
+	$(Q) mkdir -p $(dir $@)
 	$(P) $(CXX) -o $@ -c $(CXXFLAGS) $<
 
 %.o: %.cpp
+	$(Q) mkdir -p $(dir $@)
 	$(P) $(CXX) -o $@ -c $(CXXFLAGS) $<
 
-kernel/version_$(GIT_REV).cc: Makefile
+kernel/version_$(GIT_REV).cc: $(YOSYS_SRC)/Makefile
 	$(P) rm -f kernel/version_*.o kernel/version_*.d kernel/version_*.cc
-	$(Q) echo "namespace Yosys { extern const char *yosys_version_str; const char *yosys_version_str=\"Yosys $(YOSYS_VER) (git sha1 $(GIT_REV), $(notdir $(CXX)) ` \
+	$(Q) mkdir -p kernel && echo "namespace Yosys { extern const char *yosys_version_str; const char *yosys_version_str=\"Yosys $(YOSYS_VER) (git sha1 $(GIT_REV), $(notdir $(CXX)) ` \
 			$(CXX) --version | tr ' ()' '\n' | grep '^[0-9]' | head -n1` $(filter -f% -m% -O% -DNDEBUG,$(CXXFLAGS)))\"; }" > kernel/version_$(GIT_REV).cc
 
 yosys-config: misc/yosys-config.in
-	$(P) $(SED) -e 's,@CXXFLAGS@,$(subst -I"$(YOSYS_SRC)",-I"$(TARGET_DATDIR)/include",$(CXXFLAGS)),;' \
+	$(P) $(SED) -e 's,@CXXFLAGS@,$(subst -I. -I"$(YOSYS_SRC)",-I"$(TARGET_DATDIR)/include",$(CXXFLAGS)),;' \
 			-e 's,@CXX@,$(CXX),;' -e 's,@LDFLAGS@,$(LDFLAGS),;' -e 's,@LDLIBS@,$(LDLIBS),;' \
-			-e 's,@BINDIR@,$(TARGET_BINDIR),;' -e 's,@DATDIR@,$(TARGET_DATDIR),;' < misc/yosys-config.in > yosys-config
+			-e 's,@BINDIR@,$(TARGET_BINDIR),;' -e 's,@DATDIR@,$(TARGET_DATDIR),;' < $< > yosys-config
 	$(Q) chmod +x yosys-config
 
 abc/abc-$(ABCREV)$(EXE):

frontends/ilang/Makefile.inc

@@ -5,13 +5,15 @@ GENFILES += frontends/ilang/ilang_parser.output
 GENFILES += frontends/ilang/ilang_lexer.cc
 
 frontends/ilang/ilang_parser.tab.cc: frontends/ilang/ilang_parser.y
-	$(P) $(BISON) -d -r all -b frontends/ilang/ilang_parser frontends/ilang/ilang_parser.y
+	$(Q) mkdir -p $(dir $@)
+	$(P) $(BISON) -d -r all -b frontends/ilang/ilang_parser $<
 	$(Q) mv frontends/ilang/ilang_parser.tab.c frontends/ilang/ilang_parser.tab.cc
 
 frontends/ilang/ilang_parser.tab.h: frontends/ilang/ilang_parser.tab.cc
 
 frontends/ilang/ilang_lexer.cc: frontends/ilang/ilang_lexer.l
-	$(P) flex -o frontends/ilang/ilang_lexer.cc frontends/ilang/ilang_lexer.l
+	$(Q) mkdir -p $(dir $@)
+	$(P) flex -o frontends/ilang/ilang_lexer.cc $<
 
 OBJS += frontends/ilang/ilang_parser.tab.o frontends/ilang/ilang_lexer.o
 OBJS += frontends/ilang/ilang_frontend.o

frontends/ilang/ilang_lexer.l

@@ -29,7 +29,7 @@
 #pragma clang diagnostic ignored "-Wdeprecated-register"
 #endif
 
-#include "ilang_frontend.h"
+#include "frontends/ilang/ilang_frontend.h"
 #include "ilang_parser.tab.h"
 
 USING_YOSYS_NAMESPACE

frontends/ilang/ilang_parser.y

@@ -24,7 +24,7 @@
 
 %{
 #include <list>
-#include "ilang_frontend.h"
+#include "frontends/ilang/ilang_frontend.h"
 YOSYS_NAMESPACE_BEGIN
 namespace ILANG_FRONTEND {
 	std::istream *lexin;

frontends/verilog/Makefile.inc

@@ -5,13 +5,15 @@ GENFILES += frontends/verilog/verilog_parser.output
 GENFILES += frontends/verilog/verilog_lexer.cc
 
 frontends/verilog/verilog_parser.tab.cc: frontends/verilog/verilog_parser.y
-	$(P) $(BISON) -d -r all -b frontends/verilog/verilog_parser frontends/verilog/verilog_parser.y
+	$(Q) mkdir -p $(dir $@)
+	$(P) $(BISON) -d -r all -b frontends/verilog/verilog_parser $<
 	$(Q) mv frontends/verilog/verilog_parser.tab.c frontends/verilog/verilog_parser.tab.cc
 
 frontends/verilog/verilog_parser.tab.h: frontends/verilog/verilog_parser.tab.cc
 
 frontends/verilog/verilog_lexer.cc: frontends/verilog/verilog_lexer.l
-	$(P) flex -o frontends/verilog/verilog_lexer.cc frontends/verilog/verilog_lexer.l
+	$(Q) mkdir -p $(dir $@)
+	$(P) flex -o frontends/verilog/verilog_lexer.cc $<
 
 OBJS += frontends/verilog/verilog_parser.tab.o
 OBJS += frontends/verilog/verilog_lexer.o

frontends/verilog/verilog_lexer.l

@@ -40,7 +40,7 @@
 #endif
 
 #include "kernel/log.h"
-#include "verilog_frontend.h"
+#include "frontends/verilog/verilog_frontend.h"
 #include "frontends/ast/ast.h"
 #include "verilog_parser.tab.h"
 

frontends/verilog/verilog_parser.y

@@ -36,7 +36,7 @@
 %{
 #include <list>
 #include <string.h>
-#include "verilog_frontend.h"
+#include "frontends/verilog/verilog_frontend.h"
 #include "kernel/log.h"
 
 USING_YOSYS_NAMESPACE

passes/techmap/Makefile.inc

@@ -24,6 +24,7 @@ endif
 GENFILES += passes/techmap/techmap.inc
 
 passes/techmap/techmap.inc: techlibs/common/techmap.v
+	$(Q) mkdir -p $(dir $@)
 	$(P) echo "// autogenerated from $<" > $@.new
 	$(Q) echo "static char stdcells_code[] = {" >> $@.new
 	$(Q) od -v -td1 -An $< | $(SED) -e 's/[0-9][0-9]*/&,/g' >> $@.new
@@ -37,6 +38,7 @@ TARGETS += yosys-filterlib$(EXE)
 EXTRA_OBJS += passes/techmap/filterlib.o
 
 yosys-filterlib$(EXE): passes/techmap/filterlib.o
+	$(Q) mkdir -p $(dir $@)
 	$(P) $(CXX) -o yosys-filterlib$(EXE) $(LDFLAGS) $^ $(LDLIBS)
 endif
 

techlibs/common/Makefile.inc

@@ -3,16 +3,9 @@ ifneq ($(SMALL),1)
 OBJS += techlibs/common/synth.o
 endif
 
-EXTRA_TARGETS += techlibs/common/blackbox.v
-
-techlibs/common/blackbox.v: techlibs/common/blackbox.sed techlibs/common/simlib.v techlibs/common/simcells.v
-	$(P) cat techlibs/common/simlib.v techlibs/common/simcells.v | $(SED) -rf techlibs/common/blackbox.sed > techlibs/common/blackbox.v.new
-	$(Q) mv techlibs/common/blackbox.v.new techlibs/common/blackbox.v
-
 $(eval $(call add_share_file,share,techlibs/common/simlib.v))
 $(eval $(call add_share_file,share,techlibs/common/simcells.v))
 $(eval $(call add_share_file,share,techlibs/common/techmap.v))
-$(eval $(call add_share_file,share,techlibs/common/blackbox.v))
 $(eval $(call add_share_file,share,techlibs/common/pmux2mux.v))
 $(eval $(call add_share_file,share,techlibs/common/adff2dff.v))
 $(eval $(call add_share_file,share,techlibs/common/cells.lib))

techlibs/common/blackbox.sed

@@ -1,5 +0,0 @@
-#!/bin/sed -r
-/^(wire|assign|reg|event|integer|localparam|\/\/|[\/ ]\*| *$|`)/ d;
-/^(genvar|generate|always|initial|task|function)/,/^end/ d;
-/^endmodule/ s/$/\n/;
-s/ reg / /;

techlibs/ice40/Makefile.inc

@@ -11,7 +11,7 @@ EXTRA_OBJS += techlibs/ice40/brams_init.mk
 .SECONDARY: techlibs/ice40/brams_init.mk
 
 techlibs/ice40/brams_init.mk: techlibs/ice40/brams_init.py
-	$(P) cd techlibs/ice40 && python brams_init.py
+	$(P) cd share/ice40 && python $<
 	$(Q) touch techlibs/ice40/brams_init.mk
 
 techlibs/ice40/brams_init1.vh: techlibs/ice40/brams_init.mk
@@ -23,7 +23,4 @@ $(eval $(call add_share_file,share/ice40,techlibs/ice40/cells_map.v))
 $(eval $(call add_share_file,share/ice40,techlibs/ice40/cells_sim.v))
 $(eval $(call add_share_file,share/ice40,techlibs/ice40/brams.txt))
 $(eval $(call add_share_file,share/ice40,techlibs/ice40/brams_map.v))
-$(eval $(call add_share_file,share/ice40,techlibs/ice40/brams_init1.vh))
-$(eval $(call add_share_file,share/ice40,techlibs/ice40/brams_init2.vh))
-$(eval $(call add_share_file,share/ice40,techlibs/ice40/brams_init3.vh))
 

techlibs/xilinx/Makefile.inc

@@ -10,8 +10,8 @@ EXTRA_OBJS += techlibs/xilinx/brams_init.mk
 .SECONDARY: techlibs/xilinx/brams_init.mk
 
 techlibs/xilinx/brams_init.mk: techlibs/xilinx/brams_init.py
-	$(P) cd techlibs/xilinx && python brams_init.py
-	$(Q) touch techlibs/xilinx/brams_init.mk
+	$(P) cd share/xilinx && python $<
+	$(Q) touch $@
 
 techlibs/xilinx/brams_init_36.vh: techlibs/xilinx/brams_init.mk
 techlibs/xilinx/brams_init_32.vh: techlibs/xilinx/brams_init.mk
@@ -22,10 +22,6 @@ $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/cells_map.v))
 $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/cells_sim.v))
 $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams.txt))
 $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams_map.v))
-$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams_init_36.vh))
-$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams_init_32.vh))
-$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams_init_18.vh))
-$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams_init_16.vh))
 $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams_bb.v))
 $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/drams.txt))
 $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/drams_map.v))