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coreboot classes: Add dynamic classes to coreboot

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Provide functionality to create dynamic classes based on program name and
architecture for which the program needs to be compiled/linked. define_class
takes program_name and arch as its arguments and adds the program_name to
classes-y to create dynamic class. Also, compiler toolset is created for the
specified arch. All the files for this program can then be added to
program_name-y += .. Ensure that define_class is called before any files are
added to the class. Check subdirs-y for order of directory inclusion.

One such example of dynamic class is rmodules. Multiple rmodules can be used
which need to be compiled for different architectures. With dynamic classes,
this is possible.

Change-Id: Ie143ed6f79ced5f58c200394cff89b006bc9b342
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: http://review.coreboot.org/6426
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This commit is contained in:
Furquan Shaikh
2014-07-31 09:28:55 -07:00
committed by Aaron Durbin
parent 9d2cb7c11e
commit 133096b6dc
8 changed files with 41 additions and 23 deletions
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14
src/vendorcode/google/chromeos/Makefile.inc
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@ -36,7 +36,7 @@ ifeq ($(CONFIG_VBOOT_VERIFY_FIRMWARE),y)
romstage-y += vboot_handoff.c
ramstage-y += vboot_handoff.c
romstage-y += vboot_loader.c
rmodules-y += vboot_wrapper.c
rmodules_$(ARCH-romstage-y)-y += vboot_wrapper.c
VB_LIB = $(obj)/external/vboot_reference/vboot_fw.a
# Currently, vboot comes into picture only during the romstage, thus
@ -55,10 +55,10 @@ VBOOT_STUB = $(VBOOT_STUB_ELF).rmod
VBOOT_STUB_DOTO = $(VBOOT_STUB_ELF:.elf=.o)
# Dependency for the vboot rmodules. Ordering matters.
VBOOT_STUB_DEPS += $(obj)/vendorcode/google/chromeos/vboot_wrapper.rmodules.o
VBOOT_STUB_DEPS += $(obj)/lib/memcmp.rmodules.o
VBOOT_STUB_DEPS += $(obj)/arch/x86/lib/memset.rmodules.o
VBOOT_STUB_DEPS += $(obj)/arch/x86/lib/memcpy.rmodules.o
VBOOT_STUB_DEPS += $(obj)/vendorcode/google/chromeos/vboot_wrapper.rmodules_$(ARCH-romstage-y).o
VBOOT_STUB_DEPS += $(obj)/lib/memcmp.rmodules_$(ARCH-romstage-y).o
VBOOT_STUB_DEPS += $(obj)/arch/x86/lib/memset.rmodules_$(ARCH-romstage-y).o
VBOOT_STUB_DEPS += $(obj)/arch/x86/lib/memcpy.rmodules_$(ARCH-romstage-y).o
VBOOT_STUB_DEPS += $(VB_LIB)
# Remove the '-include' option since that will break vboot's build and ensure
# vboot_reference can get to coreboot's include files.
@ -66,10 +66,10 @@ VBOOT_CFLAGS += $(patsubst -I%,-I../%,$(filter-out -include $(src)/include/kconf
VBOOT_CFLAGS += -DVBOOT_DEBUG
$(VBOOT_STUB_DOTO): $(VBOOT_STUB_DEPS)
$(CC_romstage) $(CFLAGS_romstage) -nostdlib -r -o $@ $^
$(CC_rmodules_$(ARCH-romstage-y)) $(CFLAGS_rmodules_$(ARCH-romstage-y)) -nostdlib -r -o $@ $^
# Link the vbootstub module with a 64KiB-byte heap.
$(eval $(call rmodule_link,$(VBOOT_STUB_ELF), $(VBOOT_STUB_DOTO), 0x10000))
$(eval $(call rmodule_link,$(VBOOT_STUB_ELF), $(VBOOT_STUB_DOTO), 0x10000,$(ARCH-romstage-y)))
# Build vboot library without the default includes from coreboot proper.
$(VB_LIB):