这是我得到的错误信息:
http://pastebin.com/VadUW6fy
drivers/built-in.o: In function `gem_rxmac_reset':
clkdev.c:(.text+0x212238): undefined reference to `__bad_udelay'
drivers/built-in.o: In function `divide.part.4':
clkdev.c:(.text.unlikely+0x7214): undefined reference to `__udivdi3'
clkdev.c:(.text.unlikely+0x7244): undefined reference to `__umoddi3'
我谷歌搜索并找到了这个补丁:https://lkml.org/lkml/2008/4/7/82
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -174,6 +174,10 @@ static inline void timespec_add_ns(struct timespec *a, u64 ns)
{
ns += a->tv_nsec;
while(unlikely(ns >= NSEC_PER_SEC)) {
+ /* The following asm() prevents the compiler from
+ * optimising this loop into a modulo operation. */
+ asm("" : "+r"(ns));
+
ns -= NSEC_PER_SEC;
a->tv_sec++;
}
但是未能应用(可能是由于文件的新版本)。
patching file linux/time.h
Hunk #1 FAILED at 174.
1 out of 1 hunk FAILED -- saving rejects to file linux/time.h.rej
令人惊讶的是,文件 time.h.rej
并不存在!
static __always_inline void timespec_add_ns(struct timespec *a, u64 ns) { a->tv_sec += __iter_div_u64_rem(a->tv_nsec + ns, NSEC_PER_SEC, &ns); a->tv_nsec = ns; }
。 - inblueswithu