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bsd-user: Implement fdatasync, fsync and close_from 

Implement fdatasync(2), fsync(2) and close_from(2).

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh 2022-06-12 08:07:39 -06:00
parent 77d3522b3f
commit a2ba6c7b80
2 changed files with 31 additions and 0 deletions
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19
bsd-user/bsd-file.h
View File

@ -239,4 +239,23 @@ static inline abi_long do_bsd_close(abi_long arg1)
return get_errno(close(arg1));
}
/* fdatasync(2) */
static abi_long do_bsd_fdatasync(abi_long arg1)
{
return get_errno(fdatasync(arg1));
}
/* fsync(2) */
static abi_long do_bsd_fsync(abi_long arg1)
{
return get_errno(fsync(arg1));
}
/* closefrom(2) */
static abi_long do_bsd_closefrom(abi_long arg1)
{
closefrom(arg1); /* returns void */
return get_errno(0);
}
#endif /* BSD_FILE_H */

12
bsd-user/freebsd/os-syscall.c
View File

@ -273,6 +273,18 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
ret = do_bsd_close(arg1);
break;
case TARGET_FREEBSD_NR_fdatasync: /* fdatasync(2) */
ret = do_bsd_fdatasync(arg1);
break;
case TARGET_FREEBSD_NR_fsync: /* fsync(2) */
ret = do_bsd_fsync(arg1);
break;
case TARGET_FREEBSD_NR_freebsd12_closefrom: /* closefrom(2) */
ret = do_bsd_closefrom(arg1);
break;
default:
qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
ret = -TARGET_ENOSYS;