uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(78)：又见internal error

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本文适用于

ADSP-BF561

优视BF561EVB开发板

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

Visual DSP++ 5.0(update 5)

欢迎转载，但请保留作者信息

移植接近尾声，不想在用release编译的时候又碰见了internal eror：

..\..\..\..\kernel\hrtimer.c

At end of source: : internal error: Uncaught exception Assertion failed raised

at ../../../bril/optimiser/dominators.c:911 (in pass

hoist_constant_loop_exits during compilation of _lock_hrtimer_base).

Please submit a bug report with this message, the command line used,

type of machine and the output of the compiler when you add -ED -v

to the command line. Please also send us the pre-processed file that

is generated by the -ED option (the file generated is named

<original_filename>.i)

1 catastrophic error detected in the compilation of "..\..\..\..\kernel\hrtimer.c".

Compilation aborted.

cc3089: fatal error: Compilation failed

Tool failed with exit/exception code: 1.

查提示中出现的lock_hrtimer_base函数：

static

struct hrtimer_clock_base *lock_hrtimer_base(const struct hrtimer *timer,

unsigned long *flags)

{

struct hrtimer_clock_base *base;

for (;;) {

base = timer->base;

if (likely(base != NULL)) {

spin_lock_irqsave(&base->cpu_base->lock, *flags);

if (likely(base == timer->base))

return base;

/* The timer has migrated to another CPU: */

spin_unlock_irqrestore(&base->cpu_base->lock, *flags);

}

cpu_relax();

}

}

在这里发现了两个likely，估计问题应该出在这里，直接将这两个likely注释掉。搞定！

1 参考资料

uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(74)：initramfs(2009-02-27)

uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(75)：Milestone：内核成功启动(2009-02-27)

uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(76)：DM9000网卡驱动(2009-3-1)

uclinux-2008R1.5-RC3(bf561)到VDSP5的移植(77)：No usable address families found.(2009-3-3)