Revert "ARMv7: drop special handling for stages.c"

This breaks booting, and in fact stages.c is always going to be special: for it to work it has to be compiled for arm only, no thumb allowed. It's probably better to leave the stages.o target in explicitly so it's clear that it has to be compiled with a particular set of flags, rather than try to remember that we must always have the default rules no break stages.c compilation. That would be a mess. I will be pushing a CL to get rid of the assembly dump, but will be a trivial fix.

This reverts commit 8f4647a24bf19a96531af9905b23ae8a2fc2675a

Change-Id: I5e3d8e5b991f6ccf4d49078378cd4615fb230ca0
Reviewed-on: http://review.coreboot.org/2554
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

1 files changed, 13 insertions, 8 deletions

diff --git a/src/arch/armv7/Makefile.inc b/src/arch/armv7/Makefile.inc
index 33b3c4a1f3..6d4a3644ff 100644
--- a/src/arch/armv7/Makefile.inc
+++ b/src/arch/armv7/Makefile.inc
@@ -102,8 +102,13 @@ $(objcbfs)/%.elf: $(objcbfs)/%.debug
 	$(OBJCOPY) --add-gnu-debuglink=$< $@.tmp
 	mv $@.tmp $@
 
-ramstage-y += stages.c
-romstage-y += stages.c
+stages_c = $(src)/arch/armv7/stages.c
+stages_o = $(obj)/arch/armv7/stages.o
+
+$(stages_o): $(stages_c)
+	@printf "    CC         $(subst $(obj)/,,$(@))\n"
+	$(CC) -Wa,-acdlns -I. $(INCLUDES) -c -o $@ $< -marm
+
 
 ################################################################################
 # Build the coreboot_ram (stage 2)
@@ -116,12 +121,12 @@ else
 	$(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(src)/arch/armv7/coreboot_ram.ld $<
 endif
 
-$(objgenerated)/coreboot_ram.o: $$(ramstage-objs) $(LIBGCC_FILE_NAME)
+$(objgenerated)/coreboot_ram.o: $(stages_o) $$(ramstage-objs) $(LIBGCC_FILE_NAME)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
 	$(LD) -m -m armelf_linux_eabi -r -o $@ --wrap __divdi3 --wrap __udivdi3 --wrap __moddi3 --wrap __umoddi3 --wrap __uidiv --wrap __do_div64 --start-group $(ramstage-objs) $(LIBGCC_FILE_NAME) --end-group
 else
-	$(CC) $(CFLAGS) -nostdlib -r -o $@ -Wl,--start-group $(ramstage-objs) $(LIBGCC_FILE_NAME) -Wl,--end-group
+	$(CC) $(CFLAGS) -nostdlib -r -o $@ -Wl,--start-group $(stages_o) $(ramstage-objs) $(LIBGCC_FILE_NAME) -Wl,--end-group
 endif
 
 CFLAGS += \
@@ -241,20 +246,20 @@ endif
 ################################################################################
 # Build the romstage
 
-$(objcbfs)/romstage_null.debug: $$(romstage-objs) $(objgenerated)/romstage_null.ld
+$(objcbfs)/romstage_null.debug: $$(romstage-objs) $(stages_o) $(objgenerated)/romstage_null.ld
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
 	$(LD) -nostdlib -nostartfiles -static -o $@ -L$(obj) $(romstage-objs) -T $(objgenerated)/romstage_null.ld
 else
-	$(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/romstage_null.ld -Wl,--start-group $(romstage-objs) $(LIBGCC_FILE_NAME) -Wl,--end-group
+	$(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/romstage_null.ld -Wl,--start-group $(romstage-objs) $(stages_o) $(LIBGCC_FILE_NAME) -Wl,--end-group
 endif
 
 $(objcbfs)/romstage_xip.debug: $$(romstage-objs) $(objgenerated)/romstage_xip.ld
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
-	$(LD) -nostdlib -nostartfiles -static -o $@ -L$(obj) $(romstage-objs) -T $(objgenerated)/romstage_xip.ld
+	$(LD) -nostdlib -nostartfiles -static -o $@ -L$(obj) $(romstage-objs) $(stages_o) -T $(objgenerated)/romstage_xip.ld
 else
-	$(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/romstage_xip.ld -Wl,--start-group $(romstage-objs) $(LIBGCC_FILE_NAME) -Wl,--end-group
+	$(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/romstage_xip.ld -Wl,--start-group $(romstage-objs) $(stages_o) $(LIBGCC_FILE_NAME) -Wl,--end-group
 endif
 
 $(objgenerated)/romstage_null.ld: $$(ldscripts) $(obj)/ldoptions