RISC-V: Use 64-bit-time syscall numbers with the 32-bit port

sysdep.h redefines only the syscall where the generic implementation
still does not have actual 64-bit time_t support:

   /* Workarounds for generic code needing to handle 64-bit time_t.  */

   /* Fix sysdeps/unix/sysv/linux/clock_getcpuclockid.c.  */
   #define __NR_clock_getres    __NR_clock_getres_time64
   /* Fix sysdeps/nptl/lowlevellock-futex.h.  */
   #define __NR_futex           __NR_futex_time64
   [...]

This patch also adds a comment that it is a workaround to handle 64-bit
time_t and on each #define comment for which implementation it intends
to.

Reviewed-by: Maciej W. Rozycki <macro@wdc.com>

diff --git a/sysdeps/unix/sysv/linux/riscv/sysdep.h b/sysdeps/unix/sysv/linux/riscv/sysdep.h
index fbb3a02bbd6c7de937bbae3ee114f7fec7a539b8..430fa23a584c82b0d1e44ed9cb12a82dc0aa1dd1 100644 (file)
--- a/sysdeps/unix/sysv/linux/riscv/sysdep.h
+++ b/sysdeps/unix/sysv/linux/riscv/sysdep.h
@@ -25,6 +25,29 @@
 #undef SYS_ify
 #define SYS_ify(syscall_name)  __NR_##syscall_name
 
+#if __WORDSIZE == 32
+
+/* Workarounds for generic code needing to handle 64-bit time_t.  */
+
+/* Fix sysdeps/unix/sysv/linux/clock_getcpuclockid.c.  */
+#define __NR_clock_getres      __NR_clock_getres_time64
+/* Fix sysdeps/nptl/lowlevellock-futex.h.  */
+#define __NR_futex             __NR_futex_time64
+/* Fix sysdeps/unix/sysv/linux/pause.c.  */
+#define __NR_ppoll             __NR_ppoll_time64
+/* Fix sysdeps/unix/sysv/linux/select.c.  */
+#define __NR_pselect6          __NR_pselect6_time64
+/* Fix sysdeps/unix/sysv/linux/recvmmsg.c.  */
+#define __NR_recvmmsg          __NR_recvmmsg_time64
+/* Fix sysdeps/unix/sysv/linux/sigtimedwait.c.  */
+#define __NR_rt_sigtimedwait   __NR_rt_sigtimedwait_time64
+/* Fix sysdeps/unix/sysv/linux/semtimedop.c.  */
+#define __NR_semtimedop                __NR_semtimedop_time64
+/* Hack sysdeps/unix/sysv/linux/generic/utimes.c.  */
+#define __NR_utimensat         __NR_utimensat_time64
+
+#endif /* __WORDSIZE == 32 */
+
 #ifdef __ASSEMBLER__
 
 # include <sys/asm.h>