数学库函数有关问题

数学库函数问题
brew应用程序进行交叉编译时，C库中的数学函数，在助手函数中没有对应函数，如sin,cos等，这些都要自己去实现吗？请教有经验的高手和楼主指点，折腾好几天了，编译时总是如下提示：
ror: L6265E: Non-RWPI Section libspace.o(.bss) cannot be assigned to PI Exec region ER_ZI.
Error: L6265E: Non-RWPI Section stdio.o(.bss) cannot be assigned to PI Exec region ER_ZI.
Error: L6248E: libspace.o(.text) in PI region 'ER_RO' cannot have address type relocation to __libspace_start in PI region 'ER_ZI'.
Error: L6248E: _main_redirect.o(.text) in PI region 'ER_RO' cannot have address type relocation to __stderr in PI region 'ER_ZI'.
Error: L6248E: _main_redirect.o(.text) in PI region 'ER_RO' cannot have address type relocation to __stdin in PI region 'ER_ZI'.
Error: L6248E: _main_redirect.o(.text) in PI region 'ER_RO' cannot have address type relocation to __stdout in PI region 'ER_ZI'.
Error: L6248E: stdio.o(.text) in PI region 'ER_RO' cannot have address type relocation to .bss$2 in PI region 'ER_ZI'.
Error: L6248E: stdio.o(.text) in PI region 'ER_RO' cannot have address type relocation to .bss$2 in PI region 'ER_ZI'.
Error: L6248E: fflush.o(.text) in PI region 'ER_RO' cannot have address type relocation to __stdin in PI region 'ER_ZI'.
Finished: 0 information, 0 warning and 9 error messages.

------解决方案--------------------------------------------------------

探讨

是啊，要重写的。