Re: [edk2-devel][PATCH] BaseTools: Increase the DevicePath length for support more PCD value.

["Bob Feng" <bob.c.feng@intel.com>]

Xiaolu,

I think you could calculate the Str16 length based on the input argument Str.

Thanks,
Bob

-----Original Message-----
From: Jiang, Xiaolu <xiaolu.jiang@intel.com> 
Sent: Monday, November 8, 2021 10:26 AM
To: gaoliming <gaoliming@byosoft.com.cn>; devel@edk2.groups.io
Cc: Feng, Bob C <bob.c.feng@intel.com>; Chen, Christine <yuwei.chen@intel.com>; Fu, Siyuan <siyuan.fu@intel.com>
Subject: RE: [edk2-devel][PATCH] BaseTools: Increase the DevicePath length for support more PCD value.

Hi Liming,

I have checked with Team member , Totally We need support 50+ Driver GUID in DevicePath PCD value ，So the length need to increase again, I will change the Patch and re-send again.

Thanks!

-----Original Message-----
From: Jiang, Xiaolu
Sent: Monday, November 8, 2021 9:24 AM
To: gaoliming <gaoliming@byosoft.com.cn>; devel@edk2.groups.io
Cc: Feng, Bob C <bob.c.feng@intel.com>; Chen, Christine <Yuwei.Chen@intel.com>
Subject: RE: [edk2-devel][PATCH] BaseTools: Increase the DevicePath length for support more PCD value.

1. Currently  the PCD value length is More than 1024, less than 2048, 2. Now we have 14 members, Also need to add 4~6 part to the PCD.
So we Increase the length to 4096.

-----Original Message-----
From: gaoliming <gaoliming@byosoft.com.cn>
Sent: Monday, November 8, 2021 9:15 AM
To: Jiang, Xiaolu <xiaolu.jiang@intel.com>; devel@edk2.groups.io
Cc: Feng, Bob C <bob.c.feng@intel.com>; Chen, Christine <yuwei.chen@intel.com>
Subject: 回复: [edk2-devel][PATCH] BaseTools: Increase the DevicePath length for support more PCD value.

Xiaolu:
  Why choose 4096? Is it enough?

Thanks
Liming
> -----邮件原件-----
> 发件人: Xiaolu.Jiang <xiaolu.jiang@intel.com>
> 发送时间: 2021年11月6日 11:51
> 收件人: devel@edk2.groups.io
> 抄送: Xiaolu.Jiang <xiaolu.jiang@intel.com>; Bob Feng 
> <bob.c.feng@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>; Yuwei 
> Chen <yuwei.chen@intel.com>
> 主题: [edk2-devel][PATCH] BaseTools: Increase the DevicePath length for 
> support more PCD value.
> 
> Currently the PCD Value only support 13 Guid,When use more 13 pcd will 
> cause the build tool fail, Need increase the DevicePath length to 
> support more value.
> 
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3718
> 
> Cc: Bob Feng <bob.c.feng@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Yuwei Chen <yuwei.chen@intel.com>
> 
> Signed-off-by: Xiaolu Jiang <xiaolu.jiang@intel.com>
> ---
>  BaseTools/Source/C/DevicePath/DevicePath.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/BaseTools/Source/C/DevicePath/DevicePath.c
> b/BaseTools/Source/C/DevicePath/DevicePath.c
> index c4d224ed61..ef493f5506 100644
> --- a/BaseTools/Source/C/DevicePath/DevicePath.c
> +++ b/BaseTools/Source/C/DevicePath/DevicePath.c
> @@ -170,7 +170,7 @@ int main(int argc, CHAR8 *argv[])
>      fprintf(stderr, "Invalid option value, Device Path can't be 
> NULL");
> 
>      return STATUS_ERROR;
> 
>    }
> 
> -  Str16 = (CHAR16 *)malloc(1024);
> 
> +  Str16 = (CHAR16 *)malloc(4096);
> 
>    if (Str16 == NULL) {
> 
>      fprintf(stderr, "Resource, memory cannot be allocated");
> 
>      return STATUS_ERROR;
> 
> --
> 2.30.2.windows.1