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linux-user: fadvise64 implementation

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good enough to pass all LTP fadvise64 tests

Signed-off-by: Ulrich Hecht <uli@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
This commit is contained in:
Ulrich Hecht 2009-07-24 19:10:31 +02:00 committed by Riku Voipio
parent d83c8733b7
commit e72d2cc781
1 changed files with 14 additions and 3 deletions
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17
linux-user/syscall.c
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@ -6567,12 +6567,23 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
arg4 = temp;
}
#endif
#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64)
#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
#ifdef TARGET_NR_fadvise64_64
case TARGET_NR_fadvise64_64:
#endif
/* This is a hint, so ignoring and returning success is ok. */
ret = get_errno(0);
#ifdef TARGET_NR_fadvise64
case TARGET_NR_fadvise64:
#endif
#ifdef TARGET_S390X
switch (arg4) {
case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
case 6: arg4 = POSIX_FADV_DONTNEED; break;
case 7: arg4 = POSIX_FADV_NOREUSE; break;
default: break;
}
#endif
ret = -posix_fadvise(arg1, arg2, arg3, arg4);
break;
#endif
#ifdef TARGET_NR_madvise