3d91b47b42
Mock architecture can be used to build libpayload using host compiler. It can be enabled by setting ARCH_MOCK=y in the dotconfig. It sets LITTLE_ENDIAN=y, as most machines these days use little-endian CPUs. Libpayload will use HOSTCC as CC, HOSTLD as LD, etc. instead of tools provided by xcompile. Mock architecture configuration can be used by payloads for testing purposes. Thanks to it, tests can be architecture-independent, and can be executed without requiring compatible Kconfig options, e.g. ARCH_ARM64=y for ARM64 machine. However, one has to provide implementation for most architecture-specific functions present in arch/* directories. Signed-off-by: Jakub Czapiga <jacz@semihalf.com> Change-Id: Ie3a6e6f6cad2f8a2e48a8e546d3b79c577653080 Reviewed-on: https://review.coreboot.org/c/coreboot/+/57708 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
65 lines
2.2 KiB
Makefile
65 lines
2.2 KiB
Makefile
##
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##
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## Copyright (C) 2008 Advanced Micro Devices, Inc.
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##
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## Redistribution and use in source and binary forms, with or without
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## modification, are permitted provided that the following conditions
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## are met:
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## 1. Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimer.
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## 2. Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimer in the
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## documentation and/or other materials provided with the distribution.
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## 3. The name of the author may not be used to endorse or promote products
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## derived from this software without specific prior written permission.
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##
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## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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## SUCH DAMAGE.
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##
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# Sample libpayload Makefile.
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include ../.config
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ifeq ($(CONFIG_LP_ARCH_MOCK),y)
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$(error This sample program does not support ARCH_MOCK. Use sample/arch_mock instead)
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endif
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include ../build/xcompile
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ARCH-$(CONFIG_LP_ARCH_ARM) := arm
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ARCH-$(CONFIG_LP_ARCH_X86) := x86_32
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ARCH-$(CONFIG_LP_ARCH_ARM64) := arm64
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CC := $(CC_$(ARCH-y))
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AS := $(AS_$(ARCH-y))
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LIBPAYLOAD_DIR := ../install/libpayload
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XCC := CC="$(CC)" $(LIBPAYLOAD_DIR)/bin/lpgcc
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XAS := AS="$(AS)" $(LIBPAYLOAD_DIR)/bin/lpas
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CFLAGS := -fno-builtin -Wall -Werror -Os
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TARGET := hello
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OBJS := $(TARGET).o
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all: $(TARGET).elf
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$(TARGET).elf: $(OBJS)
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$(XCC) -o $@ $(OBJS)
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%.o: %.c
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$(XCC) $(CFLAGS) -c -o $@ $<
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%.S.o: %.S
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$(XAS) --32 -o $@ $<
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clean:
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rm -f $(TARGET).elf *.o
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distclean: clean
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