编译gcc 4.6.2（无法计算目标文件的后缀） [英] Compilation gcc 4.6.2 (cannot compute suffix of object files)

问题描述

编译gcc 4.6.2时出现问题：

 检查avr-gcc ... / data / data6 / src_build / gcc-4.6.2 / host-x86_64-unknown-linux-gnu / gcc / xgcc -b / data / data6 / soft / src_build / gcc-4.6.2 / -B / data / data6 / soft / programming / gcc-avr / avr / bin / -B / data / data6 / soft / programming / gcc-avr / avr / lib /-系统/ data / data6 /软/ -avr / avr / include -isystem / data / data6 / soft / programming / gcc-avr / avr / sys-include 
检查目标文件的后缀... configure：error：in`/ data / data6 /软/ src_build / gcc-4.6.2 / avr / libgcc'：
 configure：错误：无法计算目标文件的后缀：无法编译
更多详细信息，请参见`config.log'。 
  

在我的gcc-4.6.2 / avr / libgcc / config.log中找到：

 配置：3268：/data/data6/soft/src_build/gcc-4.6.2/host-x86_64-unknown-linux-gnu/ gcc / xgcc -B / data / data6 / soft / src_build / gcc-4.6.2 / host-x86_64-unknown-linux-gnu / gcc / -B / data / data6 / soft / programming / gcc-avr / avr / bin / -B / data / data6 / soft / programming / gcc-avr / avr / lib / -isystem / data / data6 / soft / programming / gcc-avr / avr / include -isystem / data / data6 / soft / -avr / avr / sys-include -c -g -O2 conftest.c>& 5 
 exec：89：-o：not found 
 configure：3272：$？ = 1 
 configure：失败的程序是：
 | / * confdefs.h * / 
 | #define PACKAGE_NAMEGNU C Runtime Library
 | #define PACKAGE_TARNAMElibgcc
 | #define PACKAGE_VERSION1.0
 | #define PACKAGE_STRINGGNU C Runtime Library 1.0
 | #define PACKAGE_BUGREPORT
 | / * end confdefs.h。 * / 
 | 
 | int 
 | main（）
 | {
 | 
 | ; 
 | return 0; 
 | } 
 configure：3286：error：in`/data/data6/soft/src_build/gcc-4.6.2/avr/libgcc'：
 configure：3289：error：无法计算目标文件的后缀：不能编译
更多细节参见`config.log'。如果此命令直接运行（创建conftest.c之后），则输出将是相同的。
如果此命令直接运行（在创建conftest.c之后），则
 
 
 
什么是exec：89：-o：not found？哪个程序写呢？在哪里89行？
 
 
 
解决方案如导出LD_CONFIG_PATH或在/etc/ld.so.conf中添加行和GMP，MPFR，MPC的路径不适用于我。 / p> 
 
 
在哪里找到此问题的解决方案？
 
 
 
 更新。 。 Gcc有非常好的选项-v :-)我看到的是从gcc汇编调用，失败。使用选项-save-temps保存了汇编器源代码，并运行汇编器，但它并不重要。
 
 
 
而不是调用真正的汇编器，它调用shell脚本包装器我的案例/ data / data6 / soft / src_build / avr-gcc / gcc / as，其开头为：
  ORIGINAL_AS_FOR_TARGET = 
 ORIGINAL_LD_FOR_TARGET =
 ORIGINAL_PLUGIN_LD_FOR_TARGET =
 ORIGINAL_NM_FOR_TARGET =
  
 
 $ b b 
当它形成命令行调用时，我们有：
  exec -o conftest.o conftest.s 
  
如上所述失败。
 
 
 
在哪里需要解决这个问题？要像这样调用：
 exec as -o conftest.o conftest.s 
 
 
 
哪里是设置变量ORIGINAL_AS_FOR_TARGET的好地方？
解决方案
我有同样的问题交叉编译mips。
 
 
 
第一步：交叉编译你的目标的binutils。安装它们在某个地方。我使用/ usr / local / [target] -gcc 
 
 
 
确保使用--program-prefix = [target]  -  
 
 
 
类似（未测试）：
  configure --prefix = / usr / local / avr- gcc --program-prefix = avr- --target = avr 
  
环境变量，因此GCC可以找到它们：
  export AR_FOR_TARGET = / usr / local / avr-gcc / bin / avr-ar 
 export LD_FOR_TARGET = / usr / local / avr-gcc / bin / avr-ld 
 export OBJDUMP_FOR_TARGET = / usr / local / avr-gcc / bin / avr-objdump 
 export NM_FOR_TARGET = / usr / local / avr-gcc / bin / avr-nm 
 export RANLIB_FOR_TARGET = / usr / local / avr-gcc / bin / avr-ranlib 
 export READELF_FOR_TARGET = / usr / local / avr-gcc / bin / avr-readelf 
 export STRIP_FOR_TARGET = / usr / local / avr-gcc / bin / avr-strip 
 export AS_FOR_TARGET = / usr / local / avr-gcc / bin / avr- as 
  
现在您可以配置和编译GCC。确保从完全空的构建目录开始，否则不会重新创建gcc / as etc。
 
Problem when compiling gcc 4.6.2:
checking for avr-gcc... /data/data6/soft/src_build/gcc-4.6.2/host-x86_64-unknown-linux-gnu/gcc/xgcc -B/data/data6/soft/src_build/gcc-4.6.2/host-x86_64-unknown-linux-gnu/gcc/ -B/data/data6/soft/programming/gcc-avr/avr/bin/ -B/data/data6/soft/programming/gcc-avr/avr/lib/ -isystem /data/data6/soft/programming/gcc-avr/avr/include -isystem /data/data6/soft/programming/gcc-avr/avr/sys-include 
checking for suffix of object files... configure: error: in `/data/data6/soft/src_build/gcc-4.6.2/avr/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
In my gcc-4.6.2/avr/libgcc/config.log I found:
configure:3268: /data/data6/soft/src_build/gcc-4.6.2/host-x86_64-unknown-linux-gnu/gcc/xgcc -B/data/data6/soft/src_build/gcc-4.6.2/host-x86_64-unknown-linux-gnu/gcc/ -B/data/data6/soft/programming/gcc-avr/avr/bin/ -B/data/data6/soft/programming/gcc-avr/avr/lib/ -isystem /data/data6/soft/programming/gcc-avr/avr/include -isystem /data/data6/soft/programming/gcc-avr/avr/sys-include -c -g -O2 conftest.c >&5
exec: 89: -o: not found
configure:3272: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
| #define PACKAGE_VERSION "1.0"
| #define PACKAGE_STRING "GNU C Runtime Library 1.0"
| #define PACKAGE_BUGREPORT ""
| /* end confdefs.h. */
| 
| int
| main ()
| {
| 
| ;
| return 0;
| }
configure:3286: error: in `/data/data6/soft/src_build/gcc-4.6.2/avr/libgcc':
configure:3289: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
If this command run directly (after creating conftest.c) output will be same.

What is exec: 89: -o: not found? Which program write it? Where is 89 line?

Solutions like exporting LD_CONFIG_PATH or adding lines in /etc/ld.so.conf with path to GMP, MPFR, MPC not work for me.

Where find solution for this problem?

Update. It seems is configuration problem. Gcc has very good option -v :-) And i see that is assembler call from gcc, which fails. With option -save-temps i saved assembler source, and run assembler, but it doesnn't matter.

Instead of calling real assembler it calls shell-script wrapper, in my case /data/data6/soft/src_build/avr-gcc/gcc/as, which begins from:
ORIGINAL_AS_FOR_TARGET=""
ORIGINAL_LD_FOR_TARGET=""
ORIGINAL_PLUGIN_LD_FOR_TARGET=""
ORIGINAL_NM_FOR_TARGET=""
And when it form command-line call, we have this:
exec -o conftest.o conftest.s
which fails as described above.

Where is necessary fix this? To get call like this:
    exec as -o conftest.o conftest.s

Where good place to set variable ORIGINAL_AS_FOR_TARGET?
解决方案
I had the same problem cross-compiling for mips.

Step one:  Cross-compile the binutils for your target.  Install them somewhere sane.  I use /usr/local/[target]-gcc

Make sure you configure them with --program-prefix=[target]-

Something like (untested):
configure --prefix=/usr/local/avr-gcc --program-prefix=avr- --target=avr
Then you need to set up some environment variables so GCC can find them:
export AR_FOR_TARGET=/usr/local/avr-gcc/bin/avr-ar
export LD_FOR_TARGET=/usr/local/avr-gcc/bin/avr-ld
export OBJDUMP_FOR_TARGET=/usr/local/avr-gcc/bin/avr-objdump
export NM_FOR_TARGET=/usr/local/avr-gcc/bin/avr-nm
export RANLIB_FOR_TARGET=/usr/local/avr-gcc/bin/avr-ranlib
export READELF_FOR_TARGET=/usr/local/avr-gcc/bin/avr-readelf
export STRIP_FOR_TARGET=/usr/local/avr-gcc/bin/avr-strip
export AS_FOR_TARGET=/usr/local/avr-gcc/bin/avr-as
Now you can configure and compile GCC.  Ensure you start from a completely empty build directory, otherwise gcc/as etc won't get recreated.

                        
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