uclinux-2008R1-RC8(bf561)到VDSP5的移植(17)：.l1.text

 

  

经过前面的处理后，VDSP报告链接的一个警告：

[Warning li2060] The following input section(s) that contain program code

        and/or data have not been placed into the executable for processor 'p0'

        as there are no relevant commands specified in the LDF:

 

        corea.dlb[head.doj](.l1.text)

在vmlinux.lds.s中，.l1.text是放在SDRAM中的，然后用__stext_l1和__etext_l1做了标记，如下所示：

       .text_l1 L1_CODE_START : AT(LOADADDR(.init.ramfs) + SIZEOF(.init.ramfs))

       {

              . = ALIGN(4);

              __stext_l1 = .;

              LDS_L1_CODE

              . = ALIGN(4);

              __etext_l1 = .;

       }

在系统启动时，uclinux的初始化代码将把这一段区间内的代码复制到L1中运行，但是在我这里使用了模式1启动，跳过了这一步骤，因此直接在LDF文件中将.l1.text这个段放在了L1中，如下所示：

 

      L1_code

      {

         INPUT_SECTION_ALIGN(4)

               __stext_l1 = .;

         __CORE = 0;

         INPUT_SECTIONS($OBJECTS_CORE_A(L1_code) $LIBRARIES_CORE_A(L1_code))

        

        

         INPUT_SECTIONS($OBJECTS_CORE_A(VDK_ISR_code) $LIBRARIES_CORE_A(VDK_ISR_code))

         INPUT_SECTIONS($OBJECTS_CORE_A(cplb) $LIBRARIES_CORE_A(cplb))

         INPUT_SECTIONS($OBJECTS_CORE_A(cplb_code) $LIBRARIES_CORE_A(cplb_code))

         INPUT_SECTIONS($OBJECTS_CORE_A(noncache_code) $LIBRARIES_CORE_A(noncache_code))

         INPUT_SECTIONS($OBJS_LIBS_INTERNAL_CORE_A(program))

         INPUT_SECTIONS($OBJS_LIBS_NOT_EXTERNAL_CORE_A(program))

         INPUT_SECTIONS($OBJECTS_CORE_A(program) $LIBRARIES_CORE_A(program))

 

         INPUT_SECTIONS($LIBRARIES_CORE_A(.l1.text))

                 

         INPUT_SECTION_ALIGN(4)

               __etext_l1 = (. + 3) / 4 * 4;

        

      } > MEM_A_L1_CODE