> On Oct 29, 2020, at 6:34 PM, gaoliming <gaoliming@byosoft.com.cn> wrote:
> 
> This macro is added to resolve the limitation on WINDOWS OS for the length of entire file path can’t be larger than 255. It use the hard code 500, because 500 is enough for most case. Do you meet with the problem that the file path length exceeds 500?
>

Yes locally we have changed it to PATH_MAX to fix a build break we hit. Does Windows support PATH_MAX?

Thanks,

Andrew Fish

> Thanks
> Liming
> 发件人: bounce+27952+66762+4905953+8761045@groups.io <bounce+27952+66762+4905953+8761045@groups.io> 代表 Andrew Fish via groups.io
> 发送时间: 2020年10月30日 1:24
> 收件人: edk2-devel-groups-io <devel@edk2.groups.io>
> 主题: [edk2-devel] Why is MAX_LONG_FILE_PATH 500 vs. PATH_MAX?
>
> Does anyone know why MAX_LONG_FILE_PATH [1] is hard coded to 500 vs. using the systems PATH_MAX?
>
> On Linux I think PATH_MAX is 4KiB and on macOS it is 1KiB.
>
>
> [1] https://github.com/tianocore/edk2/blob/master/BaseTools/Source/C/Common/CommonLib.h#L17 <https://github.com/tianocore/edk2/blob/master/BaseTools/Source/C/Common/CommonLib.h#L17>
>
> Thanks,
>
> Andrew Fish
>