x86: link ramstage the same way regardless of RELOCATABLE_RAMSTAGE

Previously there were 2 paths in linking ramstage. One was used for
RELOCATABLE_RAMSTAGE while the other was fixed location. Now that
rmodtool can handle multiple secitons for a single proram segment
there's no need for linking ramstage using lib/rmodule.ld.  That
also means true rmodules don't have symbols required for ramstage
purposes so fix memlayout.h. Lastly add default rules for creating
rmod files from the known file names and locations.

BUG=chrome-os-partner:44827
BRANCH=None
TEST=Built rambi. Inspected ramstage.debug as well as rmodules
     created during the build.

Change-Id: I98d249036c27cb4847512ab8bca5ea7b02ce04bd
Signed-off-by: Aaron Durbin <adubin@chromium.org>
Reviewed-on: http://review.coreboot.org/11524
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

3 files changed, 10 insertions, 15 deletions

diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc
index 3d1d214984..68ed810c27 100644
--- a/src/arch/x86/Makefile.inc
+++ b/src/arch/x86/Makefile.inc
@@ -282,17 +282,11 @@ ramstage-libs ?=
 
 ifeq ($(CONFIG_RELOCATABLE_RAMSTAGE),y)
 
-ifeq ($(CONFIG_ARCH_RAMSTAGE_X86_32),y)
-$(eval $(call rmodule_link,$(objcbfs)/ramstage.debug, $(objgenerated)/ramstage.o, $(CONFIG_HEAP_SIZE),x86_32))
-else
-$(eval $(call rmodule_link,$(objcbfs)/ramstage.debug, $(objgenerated)/ramstage.o, $(CONFIG_HEAP_SIZE),x86_64))
-endif
-
 # The rmodule_link defintion creates an elf file with .rmod extension.
 $(objcbfs)/ramstage.elf: $(objcbfs)/ramstage.debug.rmod
 	cp $< $@
 
-else
+endif
 
 ramstage-y += memlayout.ld
 
@@ -300,8 +294,6 @@ $(objcbfs)/ramstage.debug: $(objgenerated)/ramstage.o $(obj)/arch/x86/memlayout.
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
 	$(LD_ramstage) $(CPPFLAGS) $(LDFLAGS_ramstage) -o $@ -L$(obj) $< -T $(obj)/arch/x86/memlayout.ramstage.ld
 
-endif
-
 $(objgenerated)/ramstage.o: $$(ramstage-objs) $(COMPILER_RT_ramstage) $$(ramstage-libs)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
 ifeq ($(CONFIG_ARCH_ROMSTAGE_X86_32),y)
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index a89f7d4018..f4d8c2c2ea 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -218,9 +218,12 @@ define rmodule_link
 $(strip $(1)): $(strip $(2)) $$(COMPILER_RT_rmodules_$(4)) $(obj)/lib/rmodule.rmodules_$(4).ld | $$(RMODTOOL)
 	$$(LD_rmodules_$(4)) $$(LDFLAGS_rmodules_$(4)) $(RMODULE_LDFLAGS) -T $(obj)/lib/rmodule.rmodules_$(4).ld --defsym=__heap_size=$(strip $(3)) -o $$@ --whole-archive --start-group $(filter-out %.ld,$(2)) --end-group
 	$$(NM_rmodules_$(4)) -n $$@ > $$(basename $$@).map
-
-$(strip $(1)).rmod: $(strip $(1))
-	$$(RMODTOOL) -i $$^ -o $$@
 endef
 
 endif
+
+$(objcbfs)/%.debug.rmod: $(objcbfs)/%.debug | $(RMODTOOL)
+	$(RMODTOOL) -i $< -o $@
+
+$(obj)/%.elf.rmod: $(obj)/%.elf | $(RMODTOOL)
+	$(RMODTOOL) -i $< -o $@
diff --git a/src/lib/program.ld b/src/lib/program.ld
index d6e3e54c09..9f28d659f3 100644
--- a/src/lib/program.ld
+++ b/src/lib/program.ld
@@ -38,14 +38,14 @@
 	*(.text);
 	*(.text.*);
 
-#if ENV_RAMSTAGE || ENV_ROMSTAGE || ENV_RMODULE
+#if ENV_RAMSTAGE || ENV_ROMSTAGE
 	. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
 	_cbmem_init_hooks = .;
 	KEEP(*(.rodata.cbmem_init_hooks));
 	_ecbmem_init_hooks = .;
 #endif
 
-#if ENV_RAMSTAGE || ENV_RMODULE
+#if ENV_RAMSTAGE
 	. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
 	_pci_drivers = .;
 	KEEP(*(.rodata.pci_driver));
@@ -92,7 +92,7 @@
 #ifdef __PRE_RAM__
 	PROVIDE(_preram_cbmem_console = .);
 	PROVIDE(_epreram_cbmem_console = _preram_cbmem_console);
-#elif ENV_RAMSTAGE || ENV_RMODULE
+#elif ENV_RAMSTAGE
 	. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
 	_bs_init_begin = .;
 	KEEP(*(.bs_init));