diff options
author | Ed Schouten <ed@FreeBSD.org> | 2016-08-21 07:41:11 +0000 |
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committer | Ed Schouten <ed@FreeBSD.org> | 2016-08-21 07:41:11 +0000 |
commit | 384ef4841a18aa27807e6ae4c52941f10159f153 (patch) | |
tree | 42cfdf85417554de7e939d12398d7896a76bb265 /sys/compat/cloudabi | |
parent | 7ce0716103b6d8275c8cb6d98307632db26ad82c (diff) | |
download | src-384ef4841a18aa27807e6ae4c52941f10159f153.tar.gz src-384ef4841a18aa27807e6ae4c52941f10159f153.zip |
Use memcpy() to copy 64-bit timestamps into the syscall return values.
On 32-bit platforms, our 64-bit timestamps need to be split up across
two registers. A simple assignment to td_retval[0] will cause the top 32
bits to get lost. By using memcpy(), we will automatically either use 1
or 2 registers depending on the size of register_t.
Notes
Notes:
svn path=/head/; revision=304555
Diffstat (limited to 'sys/compat/cloudabi')
-rw-r--r-- | sys/compat/cloudabi/cloudabi_clock.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/compat/cloudabi/cloudabi_clock.c b/sys/compat/cloudabi/cloudabi_clock.c index b26d98eec699..ce53a118d88e 100644 --- a/sys/compat/cloudabi/cloudabi_clock.c +++ b/sys/compat/cloudabi/cloudabi_clock.c @@ -117,7 +117,7 @@ cloudabi_sys_clock_res_get(struct thread *td, error = cloudabi_convert_timespec(&ts, &cts); if (error != 0) return (error); - td->td_retval[0] = cts; + memcpy(td->td_retval, &cts, sizeof(cts)); return (0); } @@ -129,6 +129,6 @@ cloudabi_sys_clock_time_get(struct thread *td, int error; error = cloudabi_clock_time_get(td, uap->clock_id, &ts); - td->td_retval[0] = ts; + memcpy(td->td_retval, &ts, sizeof(ts)); return (error); } |