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6719bdf3ed
Cr50 lacks native instructions for 64-bit integers and an ABI function can be used by the compiler to take the place of the needed instructions. This CL adds support for a right bitwise shift of 64-bit integers. BRANCH=none BUG=chromium:794010 TEST=Set CONFIG_LLSR_TEST, build, update cr50, and run llsrtest on the console. Change-Id: Iae66c86720c531454ba29f15b3cc6a07959f5ef2 Signed-off-by: Allen Webb <allenwebb@google.com> Reviewed-on: https://chromium-review.googlesource.com/931932 Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
30 lines
826 B
Makefile
30 lines
826 B
Makefile
# -*- makefile -*-
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# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Cortex-M4 core OS files build
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#
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# Select ARMv7-m bare-metal toolchain
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$(call set-option,CROSS_COMPILE,$(CROSS_COMPILE_arm),arm-none-eabi-)
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# FPU compilation flags
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CFLAGS_FPU-$(CONFIG_FPU)=-mfpu=fpv4-sp-d16 -mfloat-abi=hard
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# CPU specific compilation flags
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CFLAGS_CPU+=-mthumb -Os -mno-sched-prolog
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CFLAGS_CPU+=-mno-unaligned-access
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CFLAGS_CPU+=$(CFLAGS_FPU-y)
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ifneq ($(CONFIG_LTO),)
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CFLAGS_CPU+=-flto
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LDFLAGS_EXTRA+=-flto
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endif
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core-y=cpu.o init.o ldivmod.o llsr.o uldivmod.o
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core-$(CONFIG_COMMON_PANIC_OUTPUT)+=panic.o
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core-$(CONFIG_COMMON_RUNTIME)+=switch.o task.o
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core-$(CONFIG_WATCHDOG)+=watchdog.o
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core-$(CONFIG_MPU)+=mpu.o
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