embedded linux rootfs 中有多个源文件时如何构建?
How to build when multiple source files in rootfs in embedded linux?
我有一个简单的 C 应用程序
Ctest.c 文件
#include <stdio.h>
#include "new.h"
#include "new.c"
int main()
{
switching();
return 0;
}
我有那些 new.c 和 new.h 文件。
new.h 文件为
void switching();
我的 new.c 文件为
void switching(){
char grade ='B';
switch(grade){
case 'A':
printf("Excellent\n");
break;
case 'B':
printf("Super\n");
break;
case 'C':
printf("Well done\n");
break;
case 'D':
printf("You passed\n");
break;
case 'F':
printf("Better try again");
break;
default:
printf("invalid grade");
break;
}
printf("your grade is %c \n",grade);
}
当我尝试在我的嵌入式 linux 工具中使用构建命令来编译和生成二进制文件时,构建失败,这是我为 rootfs 上的应用程序更改的 make 文件。
为应用 Ctest 制作文件:
APP = Ctest
# Add any other object files to this list below
APP_OBJS = Ctest.o
APP_OBJS += new.o
all: build
build: $(APP)
$(APP): $(APP_OBJS)
$(CC) $(LDFLAGS) -o $@ $(APP_OBJS) $(LDLIBS)
这是我编译时的错误日志
DEBUG: Executing shell function do_compile
NOTE: make -j 4
ERROR: oe_runmake failed
aarch64-xilinx-linux-gcc --sysroot=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/plnx_aarch64 -O2 -pipe -g -feliminate-unused-debug-types -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/work/aarch64-xilinx-linux/Ctest/1.0-r0=/usr/src/debug/Ctest/1.0-r0 -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/x86_64-linux= -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/plnx_aarch64= -c -o Ctest.o Ctest.c
aarch64-xilinx-linux-gcc --sysroot=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/plnx_aarch64 -O2 -pipe -g -feliminate-unused-debug-types -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/work/aarch64-xilinx-linux/Ctest/1.0-r0=/usr/src/debug/Ctest/1.0-r0 -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/x86_64-linux= -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/plnx_aarch64= -c -o new.o new.c
new.c: In function 'switching':
new.c:5:13: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
printf("Excellent\n");
^~~~~~
new.c:5:13: warning: incompatible implicit declaration of built-in function 'printf'
new.c:5:13: note: include '<stdio.h>' or provide a declaration of 'printf'
new.c:24:5: warning: incompatible implicit declaration of built-in function 'printf'
printf("your grade is %c \n",grade);
^~~~~~
new.c:24:5: note: include '<stdio.h>' or provide a declaration of 'printf'
Ctest.c:33:17: fatal error: new.h: No such file or directory
#include "new.h"
^
compilation terminated.
make: *** [<builtin>: Ctest.o] Error 1
make: *** Waiting for unfinished jobs....
ERROR: Function failed: do_compile (log file is located at /home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/work/aarch64-xilinx-linux/Ctest/1.0-r0/temp/log.do_compile.19737)
我知道我需要对构建应用程序的 make 文件或 bitbake 文件进行更改,即 Ctest.bb 文件 如果是这样,更改是什么?我正在使用 petalinux 2017.1
应用程序的 bitbake 文件是
#
# This file is the Ctest recipe.
#
SUMMARY = "Simple Ctest application"
SECTION = "PETALINUX/apps"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
SRC_URI = "file://Ctest.c \
file://new.c \
file://Makefile \
"
S = "${WORKDIR}"
do_compile() {
oe_runmake
}
do_install() {
install -d ${D}${bindir}
install -m 0755 Ctest ${D}${bindir}
install -m 0755 new ${D}${bindir}
}
如何将 new.h 文件放入 make 文件或是否需要更改 bitbake 文件?
您的 Ctest.c
文件包含 new.c
,因此您根本不应尝试构建 new.o
。删除行
APP_OBJS += new.o
和
install -m 0755 new ${D}${bindir}
您没有在 SRC_URI 中提供 new.h 文件。改成
SRC_URI = "file://Ctest.c \
file://new.c \
file://new.h \
file://Makefile \
"
我有一个简单的 C 应用程序
Ctest.c 文件
#include <stdio.h>
#include "new.h"
#include "new.c"
int main()
{
switching();
return 0;
}
我有那些 new.c 和 new.h 文件。
new.h 文件为
void switching();
我的 new.c 文件为
void switching(){
char grade ='B';
switch(grade){
case 'A':
printf("Excellent\n");
break;
case 'B':
printf("Super\n");
break;
case 'C':
printf("Well done\n");
break;
case 'D':
printf("You passed\n");
break;
case 'F':
printf("Better try again");
break;
default:
printf("invalid grade");
break;
}
printf("your grade is %c \n",grade);
}
当我尝试在我的嵌入式 linux 工具中使用构建命令来编译和生成二进制文件时,构建失败,这是我为 rootfs 上的应用程序更改的 make 文件。
为应用 Ctest 制作文件:
APP = Ctest
# Add any other object files to this list below
APP_OBJS = Ctest.o
APP_OBJS += new.o
all: build
build: $(APP)
$(APP): $(APP_OBJS)
$(CC) $(LDFLAGS) -o $@ $(APP_OBJS) $(LDLIBS)
这是我编译时的错误日志
DEBUG: Executing shell function do_compile
NOTE: make -j 4
ERROR: oe_runmake failed
aarch64-xilinx-linux-gcc --sysroot=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/plnx_aarch64 -O2 -pipe -g -feliminate-unused-debug-types -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/work/aarch64-xilinx-linux/Ctest/1.0-r0=/usr/src/debug/Ctest/1.0-r0 -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/x86_64-linux= -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/plnx_aarch64= -c -o Ctest.o Ctest.c
aarch64-xilinx-linux-gcc --sysroot=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/plnx_aarch64 -O2 -pipe -g -feliminate-unused-debug-types -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/work/aarch64-xilinx-linux/Ctest/1.0-r0=/usr/src/debug/Ctest/1.0-r0 -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/x86_64-linux= -fdebug-prefix-map=/home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/sysroots/plnx_aarch64= -c -o new.o new.c
new.c: In function 'switching':
new.c:5:13: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
printf("Excellent\n");
^~~~~~
new.c:5:13: warning: incompatible implicit declaration of built-in function 'printf'
new.c:5:13: note: include '<stdio.h>' or provide a declaration of 'printf'
new.c:24:5: warning: incompatible implicit declaration of built-in function 'printf'
printf("your grade is %c \n",grade);
^~~~~~
new.c:24:5: note: include '<stdio.h>' or provide a declaration of 'printf'
Ctest.c:33:17: fatal error: new.h: No such file or directory
#include "new.h"
^
compilation terminated.
make: *** [<builtin>: Ctest.o] Error 1
make: *** Waiting for unfinished jobs....
ERROR: Function failed: do_compile (log file is located at /home/janani/projects/peta2017.1-zcu102/zcu102/petlnx_zcu102/build/tmp/work/aarch64-xilinx-linux/Ctest/1.0-r0/temp/log.do_compile.19737)
我知道我需要对构建应用程序的 make 文件或 bitbake 文件进行更改,即 Ctest.bb 文件 如果是这样,更改是什么?我正在使用 petalinux 2017.1
应用程序的 bitbake 文件是
#
# This file is the Ctest recipe.
#
SUMMARY = "Simple Ctest application"
SECTION = "PETALINUX/apps"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
SRC_URI = "file://Ctest.c \
file://new.c \
file://Makefile \
"
S = "${WORKDIR}"
do_compile() {
oe_runmake
}
do_install() {
install -d ${D}${bindir}
install -m 0755 Ctest ${D}${bindir}
install -m 0755 new ${D}${bindir}
}
如何将 new.h 文件放入 make 文件或是否需要更改 bitbake 文件?
您的 Ctest.c
文件包含 new.c
,因此您根本不应尝试构建 new.o
。删除行
APP_OBJS += new.o
和
install -m 0755 new ${D}${bindir}
您没有在 SRC_URI 中提供 new.h 文件。改成
SRC_URI = "file://Ctest.c \
file://new.c \
file://new.h \
file://Makefile \
"