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authorAlistair Francis <alistair.francis@wdc.com>2019-09-18 16:51:23 -0700
committerAlistair Francis <alistair.francis@wdc.com>2019-10-01 14:56:06 -0700
commit69fd157a3dedf6c924c19738961083e80422258d (patch)
treed92171b4993e3ae4291a00d46da71c8096c9205a
parentaa706e13f4bfdf32a27c498902edf4f6006e433e (diff)
downloadglibc-69fd157a3dedf6c924c19738961083e80422258d.tar.gz
time: Add padding for the timespec if required
If we are running on a 32-bit system with a 64-bit time_t we need to ensure there is padding around the tv_nsec variable. This is requried as the timespec is #defined to the __timespec64 struct. * time/bits/types/struct_timespec.h: Add padding for the timespec if required.
-rw-r--r--ChangeLog5
-rw-r--r--time/bits/types/struct_timespec.h13
2 files changed, 18 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 17ff0ade2c..23dc785f30 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2019-10-01 Alistair Francis <alistair.francis@wdc.com>
+
+ * time/bits/types/struct_timespec.h: Add padding for the timespec if
+ required.
+
2019-10-01 Zack Weinberg <zackw@panix.com>
Alistair Francis <alistair.francis@wdc.com>
diff --git a/time/bits/types/struct_timespec.h b/time/bits/types/struct_timespec.h
index 5b77c52b4f..d11c69cfd3 100644
--- a/time/bits/types/struct_timespec.h
+++ b/time/bits/types/struct_timespec.h
@@ -3,13 +3,26 @@
#define _STRUCT_TIMESPEC 1
#include <bits/types.h>
+#include <bits/endian.h>
/* POSIX.1b structure for a time value. This is like a `struct timeval' but
has nanoseconds instead of microseconds. */
struct timespec
{
__time_t tv_sec; /* Seconds. */
+#if __WORDSIZE == 64 \
+ || (defined __SYSCALL_WORDSIZE && __SYSCALL_WORDSIZE == 64) \
+ || __TIMESIZE == 32
__syscall_slong_t tv_nsec; /* Nanoseconds. */
+#else
+# if __BYTE_ORDER == __BIG_ENDIAN
+ int: 32; /* Padding. */
+ long int tv_nsec; /* Nanoseconds. */
+# else
+ long int tv_nsec; /* Nanoseconds. */
+ int: 32; /* Padding. */
+# endif
+#endif
};
#endif