DSP/BIOS 5.33中怎么添加自定义的CMD文件？

使用CCS5.2 DSP/BIOS 5.33，自定义了一个CDM文件如下：

-l mailboxcfg.cmd
/* Memory Map 1 - the default */

SECTIONS
{
.bootload > BOOT
.d_down_para_mem > D_DOWN_PARA_MEM
.sccpch_para_mem > SCCPCH_PARA_MEM
}

mailboxcfg.cmd是系统自动生成的；

编译的时候报错：

>> Compilation failure
absolute symbol "_HWI_STKBOTTOM" being redefined
"E:/baijy/workspace_v5_2/bios/Debug/mailboxcfg.cmd", line 556: warning #10190-D:
absolute symbol "_HWI_STKTOP" being redefined
"E:/baijy/workspace_v5_2/bios/Debug/mailboxcfg.cmd", line 561: warning #10190-D:
absolute symbol "IRAM$B" being redefined
"E:/baijy/workspace_v5_2/bios/Debug/mailboxcfg.cmd", line 561: warning #10190-D:
absolute symbol "_IRAM_base" being redefined
"E:/baijy/workspace_v5_2/bios/Debug/mailboxcfg.cmd", line 561: warning #10190-D:
absolute symbol "IRAM$L" being redefined
"E:/baijy/workspace_v5_2/bios/Debug/mailboxcfg.cmd", line 561: warning #10190-D:
absolute symbol "_IRAM_length" being redefined
error #10010: errors encountered during linking; "bios.out" not built
gmake: *** [bios.out] Error 1