uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(50)：.spinlock.text

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本文适用于

ADI bf561 DSP

优视BF561EVB开发板

uclinux-2008r1.5-rc3(smp patch)

Visual DSP++ 5.0(update 5)

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有一个错误：

[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:

kernel.dlb[spinlock.doj](.spinlock.text)

uclinux为spinlock相关的函数定义了一个段：

#define LOCK_TEXT \

ALIGN_FUNCTION(); \

VMLINUX_SYMBOL(__lock_text_start) = .; \

*(.spinlock.text) \

VMLINUX_SYMBOL(__lock_text_end) = .;

而这个LOCK_TEXT是放在.text中的：

.text :

{

__text = .;

_text = .;

__stext = .;

TEXT_TEXT

SCHED_TEXT

LOCK_TEXT

KPROBES_TEXT

*(.text.*)

*(.fixup)

. = ALIGN(16);

___start___ex_table = .;

*(__ex_table)

___stop___ex_table = .;

. = ALIGN(4);

__etext = .;

}

因此我们需要在LDF文件中加上它：

uclinux_text

{

__text = .;

_text = .;

__stext = .;

/* TEXT_TEXT */

INPUT_SECTIONS($OBJECTS_CORE_A(L1_code) $LIBRARIES_CORE_A(L1_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(.text.init.refok))

/*

SCHED_TEXT

*/

//LOCK_TEXT

__lock_text_start = .;

INPUT_SECTIONS($LIBRARIES_CORE_A(.spinlock.text))

__lock_text_end = .;

/*

KPROBES_TEXT

*(.text.*)

*(.fixup)

. = ALIGN(16);

___start___ex_table = .;

*(__ex_table)

___stop___ex_table = .;

*/

INPUT_SECTION_ALIGN(4)

__etext = .;

} > MEM_UCLINUX_TEXT

1 参考资料

uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(45)：未命名union的后遗症(2009-01-21)

uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(46)：fls_long的问题(2009-1-21)

uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(47)：per_cpu的奇怪问题(2009-1-22)

uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(48)：__start___param(2009-1-22)

uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(49)：likely(2009-1-24)