0001-Linux-Fix-32-bit-vDSO-for-clock_gettime-on-powerpc32

[canpool]

branch：master


test：
1）Current
$ trace -r --trace=clock_gettime,clock_gettime64 ./a.out
CLOCK_MONOTONIC errno = Success (0)
CLOCK_MONOTONIC_COARSE errno = Success (0)
CLOCK_REALTIME errno = Success (0)
CLOCK_REALTIME_COARSE errno = Success (0)
    0.000000 clock_gettime(CLOCK_MONOTONIC_RAW, {tv_sec=22820, tv_nsec=304499935}) = 0
CLOCK_MONOTONIC_RAW errno = Success (0)
    0.012450 clock_gettime(CLOCK_BOOTTIME, {tv_sec=22820, tv_nsec=311351295}) = 0
CLOCK_BOOTTIME errno = Success (0)
    0.002625 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=0, tv_nsec=57978964}) = 0
    0.002625 clock_gettime64(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=0, tv_nsec=57978964}) = 0（like this，I forgot the specific data）
CLOCK_PROCESS_CPUTIME_ID errno = Success (0)
    0.002314 clock_gettime(CLOCK_THREAD_CPUTIME_ID, {tv_sec=0, tv_nsec=58799688}) = 0
    0.002314 clock_gettime64(CLOCK_THREAD_CPUTIME_ID, {tv_sec=0, tv_nsec=58799688}) = 0（like this，I forgot the specific data）
CLOCK_THREAD_CPUTIME_ID errno = Success (0)
    0.003358 clock_gettime(CLOCK_TAI, {tv_sec=1262326778, tv_nsec=790176712}) = 0
CLOCK_TAI errno = Success (0)
    0.007705 +++ exited with 0 +++


2）After applying the patch
$ trace -r --trace=clock_gettime,clock_gettime64 ./a.out
CLOCK_MONOTONIC errno = Success (0)
CLOCK_MONOTONIC_COARSE errno = Success (0)
CLOCK_REALTIME errno = Success (0)
CLOCK_REALTIME_COARSE errno = Success (0)
    0.000000 clock_gettime(CLOCK_MONOTONIC_RAW, {tv_sec=22820, tv_nsec=304499935}) = 0
CLOCK_MONOTONIC_RAW errno = Success (0)
    0.012450 clock_gettime(CLOCK_BOOTTIME, {tv_sec=22820, tv_nsec=311351295}) = 0
CLOCK_BOOTTIME errno = Success (0)
    0.002625 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=0, tv_nsec=57978964}) = 0
CLOCK_PROCESS_CPUTIME_ID errno = Success (0)
    0.002314 clock_gettime(CLOCK_THREAD_CPUTIME_ID, {tv_sec=0, tv_nsec=58799688}) = 0
CLOCK_THREAD_CPUTIME_ID errno = Success (0)
    0.003358 clock_gettime(CLOCK_TAI, {tv_sec=1262326778, tv_nsec=790176712}) = 0
CLOCK_TAI errno = Success (0)
    0.007705 +++ exited with 0 +++








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canpool
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canpool@163.com
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