Fix Makefile dependency issue with files in vhdl/*

GHDL doesn't seem to have a way to specify the location of the object
file it writes, so right now they are all ending up in the root
directory. The Makefile rules did not reflect that, so make would
continually the files in fpga/*

Fix the rules to match what GHDL is doing.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>

diff --git a/Makefile b/Makefile
index e2398c0174fe109c09213fa78171b5d86b2fe760..4f45633c739ec0f73231b1118c87761f8842959e 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@ all = core_tb soc_reset_tb icache_tb dcache_tb multiply_tb dmi_dtm_tb divider_tb
 all: $(all)
 
 %.o : %.vhdl
-       $(GHDL) -a $(GHDLFLAGS) $<
+       $(GHDL) -a $(GHDLFLAGS) --workdir=$(shell dirname $@) $<
 
 common.o: decode_types.o
 control.o: gpr_hazard.o cr_hazard.o common.o
@@ -72,7 +72,7 @@ sim-unisim/unisim_vcomponents.o: $(UNISIM_BITS)
 fpga/soc_reset_tb.o: fpga/soc_reset.o
 
 soc_reset_tb: fpga/soc_reset_tb.o fpga/soc_reset.o
-       $(GHDL) -e $(GHDLFLAGS) soc_reset_tb
+       $(GHDL) -e $(GHDLFLAGS) --workdir=fpga soc_reset_tb
 
 core_tb: core_tb.o sim_bram_helpers_c.o sim_console_c.o sim_jtag_socket_c.o
        $(GHDL) -e $(GHDLFLAGS) -Wl,sim_bram_helpers_c.o -Wl,sim_console_c.o -Wl,sim_jtag_socket_c.o $@
@@ -130,6 +130,7 @@ test_micropython_long: core_tb
 
 clean:
        rm -f *.o work-*cf unisim-*cf $(all)
+       rm -f fpga/*.o fpga/work-*cf
        rm -f sim-unisim/*.o sim-unisim/unisim-*cf
 
 distclean: clean