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求共享打了补丁支持树莓派 4B 的 qemu 源码
希望大佬能够把打了补丁支持树莓派 4B 的 qemu 源码共享一下~
raspberry 3B在编译汇编文件时缺少宏定义
rpi3对于串口的初始化__init_uart
(early_uart.S),包含了#include "asm/gpio.h"
汇编文件的编译规则如下:
$(BUILD_DIR)/%_s.o: $ (SRC_DIR)/%.S
$(ARMGNU)-gcc $ (ASMOPS) -MMD -c$< -o $ @
然而ASMOPS = -g -Iinclude
所以在预处理的时候下面的代码有问题
#ifdef CONFIG_BOARD_PI3B
#define PBASE 0x3F000000
#else
#define PBASE 0xFE000000
#endi
Makefile需要改为
ifeq ($(board), rpi3)
COPS += -DCONFIG_BOARD_PI3B
ASMOPS += -DCONFIG_BOARD_PI3B
QEMU_FLAGS += -machine raspi3b
else ifeq ($(board), rpi4)
COPS += -DCONFIG_BOARD_PI4B
ASMOPS += -DCONFIG_BOARD_PI4B
QEMU_FLAGS += -machine raspi4
endif
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