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authorDmitry Chestnykh <dm.chestnykh@gmail.com>2024-02-25 14:43:28 +0300
committerWaldemar Brodkorb <wbx@openadk.org>2024-02-25 19:27:48 +0100
commit81ed334f67e0c56ff0a89ade0fc156c0ba23f190 (patch)
tree09829cc5cd0d03a4f91887864f6a3c28213549af /libc/sysdeps/linux/common/clock_getres.c
parent086a5f165096af104b01bb6d5639bd769bd17620 (diff)
Add support for using time64 on big-endian machines.
For BE architectures there is one significant difference in comparison with time64 support for little-endian architectures like ARMv7. The difference is that we strictly need to pass two 64bit values to system calls because Linux Kernel internally uses `struct __kernel_timespec` and similar, which consists of two 64bit fields. For this reason many files have been changed to convert pointers to timespec-family structures (mixed of 64bit and 32bit values) to the pointer of the similar but 64bit-only structures for using as system calls args. This is general prerequisite for any BE architecture. Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/common/clock_getres.c')
-rw-r--r--libc/sysdeps/linux/common/clock_getres.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/clock_getres.c b/libc/sysdeps/linux/common/clock_getres.c
index d4b989958..fd0f8c14c 100644
--- a/libc/sysdeps/linux/common/clock_getres.c
+++ b/libc/sysdeps/linux/common/clock_getres.c
@@ -10,9 +10,20 @@
#include <sys/syscall.h>
#include <time.h>
-
#if defined(__UCLIBC_USE_TIME64__) && defined(__NR_clock_getres_time64)
-_syscall2_time64(int, clock_getres, clockid_t, clock_id, struct timespec*, res)
+#include "internal/time64_helpers.h"
+
+int clock_getres(clockid_t clock_id, struct timespec *res)
+{
+ struct __ts64_struct __ts64;
+ int __ret = INLINE_SYSCALL(clock_getres_time64, 2, clock_id, &__ts64);
+ if (__ret == 0 && res) {
+ res->tv_sec = __ts64.tv_sec;
+ res->tv_nsec = __ts64.tv_nsec;
+ };
+
+ return __ret;
+}
#elif defined(__NR_clock_getres)
_syscall2(int, clock_getres, clockid_t, clock_id, struct timespec*, res)
#else