2016-04-11 Adhemerval Zanella <adhemerval.zanella@linaro.org>
+ * sysdeps/unix/sysv/linux/generic/sysdep.h (__ALIGNMENT_ARG): Move
+ definition.
+ (__ALIGNMENT_COUNT): Likewise.
+ * sysdeps/unix/sysv/linux/sysdep.h (__ALIGNMENT_ARG): To here.
+ (__ALIGNMENT_COUNT): Likewise.
+ (SYSCALL_LL): New define.
+ (SYSCALL_LL64): Likewise.
+ * sysdeps/unix/sysv/linux/mips/kernel-features.h:
+ [_MIPS_SIM == _ABIO32] (__ASSUME_WORDSIZE64_ILP32): Define.
+ * sysdeps/unix/sysv/linux/x86_64/kernel-features.h:
+ [ILP32] (__ASUME_WORDSIZE64_ILP32): Likewise.
+
* sysdeps/unix/sysv/linux/arm/kernel-features.h
(__ASSUME_ALIGNED_REGISTER_PAIRS): Define.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
#define __NR_pread __NR_pread64
#define __NR_pwrite __NR_pwrite64
#endif
-
-/* Provide a dummy argument that can be used to force register
- alignment for register pairs if required by the syscall ABI. */
-#ifdef __ASSUME_ALIGNED_REGISTER_PAIRS
-#define __ALIGNMENT_ARG 0,
-#define __ALIGNMENT_COUNT(a,b) b
-#else
-#define __ALIGNMENT_ARG
-#define __ALIGNMENT_COUNT(a,b) a
-#endif
#if _MIPS_SIM == _ABIO32
# define __ASSUME_ALIGNED_REGISTER_PAIRS 1
#endif
+
+/* Define that mips64-n32 is a ILP32 ABI to set the correct interface to
+ pass 64-bits values through syscalls. */
+#if _MIPS_SIM == _ABIN32
+# define __ASSUME_WORDSIZE64_ILP32 1
+#endif
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#include <bits/wordsize.h>
+
/* Set error number and return -1. A target may choose to return the
internal function, __syscall_error, which sets errno and returns -1.
We use -1l, instead of -1, so that it can be casted to (void *). */
__set_errno (err); \
-1l; \
})
+
+/* Provide a dummy argument that can be used to force register
+ alignment for register pairs if required by the syscall ABI. */
+#ifdef __ASSUME_ALIGNED_REGISTER_PAIRS
+#define __ALIGNMENT_ARG 0,
+#define __ALIGNMENT_COUNT(a,b) b
+#else
+#define __ALIGNMENT_ARG
+#define __ALIGNMENT_COUNT(a,b) a
+#endif
+
+/* Provide a common macro to pass 64-bit value on syscalls. */
+#if __WORDSIZE == 64 || defined __ASSUME_WORDSIZE64_ILP32
+# define SYSCALL_LL(val) (val)
+# define SYSCALL_LL64(val) (val)
+#else
+#define SYSCALL_LL(val) \
+ __LONG_LONG_PAIR ((val) >> 31, (val))
+#define SYSCALL_LL64(val) \
+ __LONG_LONG_PAIR ((long) ((val) >> 32), (long) ((val) & 0xffffffff))
+#endif
# define __ASSUME_GETCPU_SYSCALL 1
#endif
+/* Define that x32 is a ILP32 ABI to set the correct interface to pass
+ 64-bits values through syscalls. */
+#ifdef __ILP32__
+# define __ASSUME_WORDSIZE64_ILP32 1
+#endif
+
#include_next <kernel-features.h>