Erlang运行时错误的体系结构？

Question

我在OSX 10.6 Snow Leopard上玩http://www.erlang.org/doc/tutorial/nif.html。我在运行该示例时遇到了一些麻烦。

我编译使用：

gcc -o complex_nif.so -fpic -I/usr/local/lib/erlang/usr/include -flat_namespace -undefined suppress complex.c complex_nif.c 

和使用Erlang的运行：

Erlang R15B01 (erts-5.9.1) [source] [smp:4:4] [async-threads:0] [hipe] [kernel-poll:false] 

Eshell V5.9.1 (abort with ^G) 
1> c(complex). 
{error,on_load_failure} 

=ERROR REPORT==== 4-Apr-2013::15:24:51 === 
Error in process <0.37.0> with exit value: {{badmatch,{error,{load_failed,"Failed to load NIF library: 'dlopen(./complex_nif.so, 2): no suitable image found. Did find:\n  ./complex_nif.so: mach-o, but wrong architecture'"}}},[{complex,init,0,[{file,"... 


=ERROR REPORT==== 4-Apr-2013::15:24:51 === 
The on_load function for module complex returned {{badmatch, 
                {error, 
                {load_failed, 
                "Failed to load NIF library: 'dlopen(./complex_nif.so, 2): no suitable image found. Did find:\n\t./complex_nif.so: mach-o, but wrong architecture'"}}}, 
                [{complex,init,0, 
                [{file,...},{...}]}, 
                {code_server, 
                '-handle_on_load/4-fun-0-', 
                1, 
                [{...}|...]}]} 

我看到，我找到.so文件。但是erlang并不喜欢它所编译的架构，erlang更喜欢哪种架构？

Answer 1

验证您的Erlang运行系统使用的体系结构。例如： -

$ which erlc 
/usr/local/bin/erlc 
$ file /usr/local/bin/erlc 
/usr/local/bin/erlc: Mach-O 64-bit executable x86_64 

确保您的库上面的体系结构相匹配：

$ file complex_nif.so 
complex_nif.so: Mach-O 64-bit executable x86_64 

如果它们不匹配，编译库与-arch i386（或-arch x86_64）标志。