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>

1 files changed, 31 insertions, 0 deletions

diff --git a/include/internal/time64_helpers.h b/include/internal/time64_helpers.h
new file mode 100644
index 000000000..7a78e8388
--- /dev/null
+++ b/include/internal/time64_helpers.h
@@ -0,0 +1,31 @@
+#ifndef _TIME64_HELPERS_H
+#define _TIME64_HELPERS_H
+
+#include <bits/types.h>
+#include <time.h>
+#include <stddef.h>
+
+struct __ts64_struct {
+   __S64_TYPE tv_sec;
+   __S64_TYPE tv_nsec;
+};
+
+#define TO_TS64_P(__ts) (((struct timespec *)(__ts)) ? \
+                        (&(struct __ts64_struct) {.tv_sec = ((struct timespec *)(__ts))->tv_sec, \
+                                                  .tv_nsec = ((struct timespec *)(__ts))->tv_nsec}) : NULL)
+
+struct __its64_struct {
+    __S64_TYPE interval_tv_sec;
+    __S64_TYPE interval_tv_nsec;
+    __S64_TYPE value_tv_sec;
+    __S64_TYPE value_tv_nsec;
+};
+
+#define TO_ITS64_P(__its) (((struct itimerspec *)(__its)) ? \ 
+                          (&(struct __its64_struct) {.interval_tv_sec = ((struct itimerspec *)(__its))->it_interval.tv_sec, \
+                                                     .interval_tv_nsec = ((struct itimerspec *)(__its))->it_interval.tv_nsec, \
+                                                     .value_tv_sec = ((struct itimerspec *)(__its))->it_value.tv_sec, \
+                                                     .value_tv_nsec = ((struct itimerspec *)(__its))->it_value.tv_nsec}) : NULL)
+
+
+#endif /* _TIME64_HELPERS_H */