u-boot中的include/autoconf.mk文件是如何生成的

本文介绍了一个使用Makefile从config.h生成autoconf.mk的过程。通过GCC预处理器和sed命令,该过程实现了宏定义的提取和转换,以便在后续的构建过程中使用。

在Makefile中:

$(obj)include/autoconf.mk: $(obj)include/config.h @$(XECHO) Generating $@ ; / set -e ; / : Extract the config macros ; / $(CPP) $(CFLAGS) -DDO_DEPS_ONLY -dM include/common.h | / sed -n -f tools/scripts/define2mk.sed > $@

实际执行的命令:

arm-none-linux-gnueabi-gcc -E -g -Os -fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0xc3e00000 -I/home/zkl/svn/compiled/uboot-1.3.4-m9_v4/include -fno-builtin -ffreestanding -nostdinc -isystem /usr/local/arm/arm-2009q3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.1/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -Wall -Wstrict-prototypes -fno-stack-protector -DDO_DEPS_ONLY -dM include/common.h | sed -n -f tools/scripts/define2mk.sed

/^#define CONFIG_[A-Za-z0-9_][A-Za-z0-9_]*/ { # Strip the #define prefix s/#define *//; # Change to form CONFIG_*=VALUE s/ */=/; # Drop trailing spaces s/ *$//; # drop quotes around string values s/="/(.*/)"$/=/1/; # Concatenate string values s/" *"//g; # Wrap non-numeral values with quotes s/=/(.*/?[^0-9].*/)$/=/"/1/"/; # Change '1' and empty values to "y" (not perfect, but # supports conditional compilation in the makefiles s/=$/=y/; s/=1$/=y/; # print the line p }

正常编译log Configuring for isvp_t31_sfcnor_ddr128M - Board: isvp_t31, Options: SPL_SFC_SUPPORT,ENV_IS_IN_SPI_FLASH,SPL_SFC_NOR,JZ_MMC_MSC0,DDR2_128M make make[2]: Entering directory '/home/lixueming/00lixueming/zeratul_1.2/os/uboot/u-boot' Generating include/autoconf.mk Generating include/autoconf.mk.dep mips-linux-gnu-gcc -DDO_DEPS_ONLY \ -g -Os -ffunction-sections -fdata-sections -D__KERNEL__ -DCONFIG_SYS_TEXT_BASE=0x80100000 -DCONFIG_SPL_TEXT_BASE=0x80001000 -DCONFIG_SPL_PAD_TO=36864 -I/home/lixueming/00lixueming/zeratul_1.2/os/uboot/u-boot/include -fno-builtin -ffreestanding -nostdinc -isystem /home/lixueming/00lixueming/cameos_BS_1.2/toolchain/zeratul_sdk/mips-gcc472-glibc216-64bit/bin/../lib/gcc/mips-linux-gnu/4.7.2/include -pipe -msoft-float -std=gnu89 -DCONFIG_MIPS -D__MIPS__ -G 0 -EL -msoft-float -fpic -mabicalls -march=mips32 -mabi=32 -DCONFIG_32BIT -mno-branch-likely -Wall -Wstrict-prototypes -fno-stack-protector -Wno-format-nonliteral -Wno-format-security -fstack-usage -DCONFIG_TP_SERIAL_FORBIDDEN \ -o lib/asm-offsets.s lib/asm-offsets.c -c -S In file included from /home/lixueming/00lixueming/zeratul_1.2/os/uboot/u-boot/include/config.h:15:0, from /home/lixueming/00lixueming/zeratul_1.2/os/uboot/u-boot/include/common.h:37, from lib/asm-offsets.c:18: 出问题的编译log ls: 无法访问'/home/wuhsulei/share_smbd/Cworkspace/2D230/zeratul/os/uboot/u-boot/tools/charge_logo/*.jpg': 没有那个文件或目录 make[2]: Leaving directory '/home/wuhsulei/share_smbd/Cworkspace/2D230/zeratul/os/uboot/u-boot/tools/ingenic-tools' make[1]: Leaving directory '/home/wuhsulei/share_smbd/Cworkspace/2D230/zeratul/os/uboot/u-boot' make[1]: Entering directory '/home/wuhsulei/share_smbd/Cworkspace/2D230/zeratul/os/uboot/u-boot' Configuring for isvp_t31_sfcnor_ddr128M - Board: isvp_t31, Options: SPL_SFC_SUPPORT,ENV_IS_IN_SPI_FLASH,SPL_SFC_NOR,JZ_MMC_MSC0,DDR2_128M make make[2]: Entering directory '/home/wuhsulei/share_smbd/Cworkspace/2D230/zeratul/os/uboot/u-boot' make[2]: mips-linux-gnu-gcc:命令未找到 /bin/sh: mips-linux-gnu-gcc: 未找到命令 dirname: 缺少操作数 Try 'dirname --help' for more information. Generating include/autoconf.mk /bin/sh: 行 3: mips-linux-gnu-gcc: 未找到命令 Generating include/autoconf.mk.dep /bin/sh: 行 3: mips-linux-gnu-gcc: 未找到命令 make[2]: mips-linux-gnu-gcc:命令未找到 /bin/sh: mips-linux-gnu-gcc: 未找到命令 dirname: 缺少操作数 Try 'dirname --help' for more information. /bin/sh: mips-linux-gnu-gcc: 未找到命令 mips-linux-gnu-gcc -DDO_DEPS_ONLY \ -g -Os -ffunction-sections -fdata-sections -D__KERNEL__ -I/home/wuhsulei/share_smbd/Cworkspace/2D230/zeratul/os/uboot/u-boot/include -fno-builtin -ffreestanding -nostdinc -isystem -pipe -msoft-float -std=gnu89 -DCONFIG_MIPS -D__MIPS__ -G 0 -EB -msoft-float -fpic -mabicalls -march=mips32 -mabi=32 -DCONFIG_32BIT -mno-branch-likely -Wall -Wstrict-prototypes -DCONFIG_TP_SERIAL_FORBIDDEN \ -o lib/asm-offsets.s lib/asm-offsets.c -c -S make[2]: mips-linux-gnu-gcc:命令未找到 Makefile:779: recipe for target 'lib/asm-offsets.s' failed make[2]: *** [lib/asm-offsets.s] Error 127 make[2]: Leaving directory '/home/wuhsulei/share_smbd/Cworkspace/2D230/zeratul/os/uboot/u-boot' .boards.depend:534: recipe for target 'isvp_t31_sfcnor_ddr128M' failed make[1]: *** [isvp_t31_sfcnor_ddr128M] Error 2 请问问题可能出在哪?
最新发布
11-18
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