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我把代码包含到vxworks image中，就可以运行，

如果把代码分出来，变成zm.out，装载的时候就出现如下错误，

开始怀疑是组件没配置，找了半天也没发现，在风河提供的源代码中，也没发现类似的symbol，

-> ld <zm.out

Undefined symbol: flsub (binding 1 type 0)

Undefined symbol: fladd (binding 1 type 0)

Undefined symbol: ultofl (binding 1 type 0)

Undefined symbol: flmul (binding 1 type 0)

Undefined symbol: fldiv (binding 1 type 0)

Undefined symbol: flcmp (binding 1 type 0)

Undefined symbol: ltofl (binding 1 type 0)

Undefined symbol: fltodb (binding 1 type 0)

Undefined symbol: dbtofl (binding 1 type 0)

Undefined symbol: fltused (binding 1 type 0)

Undefined symbol: fltol (binding 1 type 0)

Undefined symbol: dbcmp (binding 1 type 0)

Undefined symbol: dbmul (binding 1 type 0)

Undefined symbol: dbdiv (binding 1 type 0)

ld error: Module contains undefined symbol(s) and may be unusable.

value = 0 = 0x0