GDB不会加载源文件

Z时代
2024-01-10
分类：问答

我正在使用arm-linux-gcc来在主机（debian i386）上编译一个简单的C文件-g。

然后将a.out文件复制到目标（arm，uclibc）计算机。

运行a.out-没关系。

gdb a.out它说，使用GDB（目标）并列出源代码No such file or directory。事实一直如此吗？

如果我将1.c文件复制到目标，则list命令它列出源代码。

我的问题：

GDB一直都是这样，还是我可以控制其他选项？

您对调试程序有什么建议吗？

一些信息可能会有用：

：

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
// main function
int main(void)
{
    int i;
    for(i=0;i<3;i++){
        printf("i=%d\n",i);
    }
    return 0;
}

zodiac1111@debian:tmp$ arm-linux-gcc -v Using built-in specs. Target:arm-unknown-linux-uclibcgnueabi Configured with:/home/ldsh/rt9x5/linux/buildroot/buildroot/output/toolchain/gcc-4.3.5/configure \ --prefix=/opt/rt9x5/arm-linux-uclibcgnueabi/usr --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu \ --target=arm-unknown-linux-uclibcgnueabi --enable-languages=c,c++ \ --with-sysroot=/opt/rt9x5/arm-linux-uclibcgnueabi/usr/arm-unknown-linux-uclibcgnueabi/sysroot \ --with-build-time-tools=/opt/rt9x5/arm-linux-uclibcgnueabi/usr/arm-unknown-linux-uclibcgnueabi/bin \ --disable-__cxa_atexit --enable-target-optspace --disable-libgomp --with-gnu-ld --disable-libssp \ --disable-multilib --disable-tls --enable-shared --with-gmp=/opt/rt9x5/arm-linux-uclibcgnueabi/usr \ --with-mpfr=/opt/rt9x5/arm-linux-uclibcgnueabi/usr --enable-threads --disable-decimal-float \ --with-float=soft --with-abi=aapcs-linux --with-arch=armv5te --with-tune=arm926ej-s \ --with-pkgversion='Buildroot 2011.05-dirty' \ --with-bugurl=http://bugs.buildroot.net/ : (reconfigured) /home/ldsh/rt9x5/linux/buildroot/buildroot/output/toolchain/gcc-4.3.5/configure \ --prefix=/opt/rt9x5/arm-linux-uclibcgnueabi/usr --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu \ --target=arm-unknown-linux-uclibcgnueabi --enable-languages=c,c++ \ --with-sysroot=/opt/rt9x5/arm-linux-uclibcgnueabi/usr/arm-unknown-linux-uclibcgnueabi/sysroot \ --with-build-time-tools=/opt/rt9x5/arm-linux-uclibcgnueabi/usr/arm-unknown-linux-uclibcgnueabi/bin \ --disable-__cxa_atexit --enable-target-optspace --disable-libgomp --with-gnu-ld --disable-libssp \ --disable-multilib --disable-tls --enable-shared --with-gmp=/opt/rt9x5/arm-linux-uclibcgnueabi/usr \ --with-mpfr=/opt/rt9x5/arm-linux-uclibcgnueabi/usr --enable-threads --disable-decimal-float \ --with-float=soft --with-abi=aapcs-linux --with-arch=armv5te --with-tune=arm926ej-s \ --with-pkgversion='Buildroot 2011.05-dirty' --with-bugurl=http://bugs.buildroot.net/ Thread model:posix gcc version 4.3.5 (Buildroot 2011.05-dirty)

arm-linux-gcc -g 1.c

zodiac1111@debian:tmp$ uname -a Linux debian 3.12-1-686-pae #1 SMP Debian 3.12.9-1 (2014-02-01) i686 GNU/Linux

# uname -a Linux AT91SAM9-RT9x5 2.6.39 #25 Mon Dec 30 17:40:40 CST 2013 armv5tejl GNU/Linux

# ls -l total 1 -rwxr--r-- 1 ftp 83 6094 Feb 21 15:19 a.out

# ./a.out 
i=0
i=1
i=2

# gdb -v dlopen failed on 'libthread_db.so.1' - File not found GDB will not be able to debug pthreads. GNU gdb 6.8 Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "arm-unknown-linux-uclibcgnueabi".

# gdb a.out 
<...>
(gdb) list
1   1.c: No such file or directory.
    in 1.c
(gdb) break main 
Breakpoint 1 at 0x847c: file 1.c, line 8.
(gdb) run 
Starting program: /data/a.out
Breakpoint 1, main () at 1.c:8
8   in 1.c
(gdb) step
9   in 1.c
    (gdb) p i
$1 = 0
(gdb) step
i=0
8   in 1.c
(gdb) p i
$2 = 0
(gdb) step
9   in 1.c
(gdb) p i
$3 = 1
(gdb)

# ls -l -rw-r--r-- 1 ftp 83 158 Feb 21 15:51 1.c -rwxr--r-- 1 ftp 83 6094 Feb 21 15:19 a.out

# gdb a.out 
<...>
(gdb) list
warning: Source file is more recent than executable.
1   #include <stdio.h>
2   #include <string.h>
3   #include <stdlib.h>
4   // main function
5   int main(void)
6   {
7       int i;
8       for(i=0;i<3;i++){
9           printf("i=%d\n",i);
10      }
(gdb)

在主机平台上，如果我

gcc -g 1.c在宿主平台上编译。

比或的1.c文件。

采用gdb a.out

发生相同的情况。

zodiac1111@debian:tmp$ gdb -v GNU gdb (GDB) 7.6.2 (Debian 7.6.2-1) Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. zodiac1111@debian:tmp$ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/i486-linux-gnu/4.8/lto-wrapper Target: i486-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 4.8.2-14' --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.8 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libmudflap --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-i386/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-i386 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-i386 --with-arch-directory=i386 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-targets=all --enable-multiarch --with-arch-32=i586 --with-multilib-list=m32,m64,mx32 --with-tune=generic --enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu Thread model: posix gcc version 4.8.2 (Debian 4.8.2-14)

回答：

仔细

阅读GDB文档，尤其是有关源路径的文档。您要使用dir命令

另外，切换到较新的gdb（可能通过gdb从其源代码进行编译）。当前版本是7.7（所以6.8确实很旧）

以上是 GDB不会加载源文件的全部内容，来源链接： utcz.com/qa/409967.html

GDB不会加载源文件

GDB一直都是这样，还是我可以控制其他选项？

您对调试程序有什么建议吗？

回答：

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