From b06f4c0094d3c68be39ada0ed26ae99d51f48013 Mon Sep 17 00:00:00 2001
From: Wilco Dijkstra <wdijkstr@arm.com>
Date: Fri, 1 Feb 2019 12:19:42 +0000
Subject: Cleanup clock_*time includes

Clock_gettime, settime and getres implementations are unncessarily
complex due to using defines and C file inclusion.  Simplify the
code by replacing the redundant defines and removing the inclusion,
making it much easier to understand.  No functional changes.

	* sysdeps/posix/clock_getres.c (__clock_getres): Cleanup.
	* sysdeps/unix/clock_gettime.c (__clock_gettime): Cleanup.
	* sysdeps/unix/clock_settime.c (__clock_settime): Cleanup.
	* sysdeps/unix/sysv/linux/clock_getres.c (__clock_getres): Cleanup.
	* sysdeps/unix/sysv/linux/clock_gettime.c (__clock_gettime): Cleanup.
	* sysdeps/unix/sysv/linux/clock_settime.c (__clock_settime): Cleanup.
---
 sysdeps/unix/sysv/linux/clock_getres.c  | 30 +++++++-----------------------
 sysdeps/unix/sysv/linux/clock_gettime.c | 27 ++++++++-------------------
 sysdeps/unix/sysv/linux/clock_settime.c | 29 ++++++++++++++---------------
 3 files changed, 29 insertions(+), 57 deletions(-)

(limited to 'sysdeps/unix/sysv/linux')

diff --git a/sysdeps/unix/sysv/linux/clock_getres.c b/sysdeps/unix/sysv/linux/clock_getres.c
index a245328..24b2299 100644
--- a/sysdeps/unix/sysv/linux/clock_getres.c
+++ b/sysdeps/unix/sysv/linux/clock_getres.c
@@ -26,26 +26,10 @@
 #endif
 #include <sysdep-vdso.h>
 
-#define SYSCALL_GETRES \
-  retval = INLINE_VSYSCALL (clock_getres, 2, clock_id, res); \
-  break
-
-/* The REALTIME and MONOTONIC clock are definitely supported in the
-   kernel.  */
-#define SYSDEP_GETRES							      \
-  SYSDEP_GETRES_CPUTIME							      \
-  case CLOCK_REALTIME:							      \
-  case CLOCK_MONOTONIC:							      \
-  case CLOCK_MONOTONIC_RAW:						      \
-  case CLOCK_REALTIME_COARSE:						      \
-  case CLOCK_MONOTONIC_COARSE:						      \
-    SYSCALL_GETRES
-
-/* We handled the REALTIME clock here.  */
-#define HANDLED_REALTIME	1
-#define HANDLED_CPUTIME		1
-
-#define SYSDEP_GETRES_CPU SYSCALL_GETRES
-#define SYSDEP_GETRES_CPUTIME	/* Default catches them too.  */
-
-#include <sysdeps/posix/clock_getres.c>
+/* Get resolution of clock.  */
+int
+__clock_getres (clockid_t clock_id, struct timespec *res)
+{
+  return INLINE_VSYSCALL (clock_getres, 2, clock_id, res);
+}
+weak_alias (__clock_getres, clock_getres)
diff --git a/sysdeps/unix/sysv/linux/clock_gettime.c b/sysdeps/unix/sysv/linux/clock_gettime.c
index 9af806f..5fc47fb 100644
--- a/sysdeps/unix/sysv/linux/clock_gettime.c
+++ b/sysdeps/unix/sysv/linux/clock_gettime.c
@@ -26,22 +26,11 @@
 #endif
 #include <sysdep-vdso.h>
 
-/* The REALTIME and MONOTONIC clock are definitely supported in the
-   kernel.  */
-#define SYSDEP_GETTIME \
-  SYSDEP_GETTIME_CPUTIME;						      \
-  case CLOCK_REALTIME:							      \
-  case CLOCK_MONOTONIC:							      \
-    retval = INLINE_VSYSCALL (clock_gettime, 2, clock_id, tp);		      \
-    break
-
-/* We handled the REALTIME clock here.  */
-#define HANDLED_REALTIME	1
-#define HANDLED_CPUTIME	1
-
-#define SYSDEP_GETTIME_CPU(clock_id, tp) \
-  retval = INLINE_VSYSCALL (clock_gettime, 2, clock_id, tp); \
-  break
-#define SYSDEP_GETTIME_CPUTIME	/* Default catches them too.  */
-
-#include <sysdeps/unix/clock_gettime.c>
+/* Get current value of CLOCK and store it in TP.  */
+int
+__clock_gettime (clockid_t clock_id, struct timespec *tp)
+{
+  return INLINE_VSYSCALL (clock_gettime, 2, clock_id, tp);
+}
+weak_alias (__clock_gettime, clock_gettime)
+libc_hidden_def (__clock_gettime)
diff --git a/sysdeps/unix/sysv/linux/clock_settime.c b/sysdeps/unix/sysv/linux/clock_settime.c
index 7e2432b..d837e30 100644
--- a/sysdeps/unix/sysv/linux/clock_settime.c
+++ b/sysdeps/unix/sysv/linux/clock_settime.c
@@ -21,18 +21,17 @@
 
 #include "kernel-posix-cpu-timers.h"
 
-
-/* The REALTIME clock is definitely supported in the kernel.  */
-#define SYSDEP_SETTIME \
-  case CLOCK_REALTIME:							      \
-    retval = INLINE_SYSCALL (clock_settime, 2, clock_id, tp);		      \
-    break
-
-/* We handled the REALTIME clock here.  */
-#define HANDLED_REALTIME	1
-
-#define HANDLED_CPUTIME 1
-#define SYSDEP_SETTIME_CPU \
-  retval = INLINE_SYSCALL (clock_settime, 2, clock_id, tp)
-
-#include <sysdeps/unix/clock_settime.c>
+/* Set CLOCK to value TP.  */
+int
+__clock_settime (clockid_t clock_id, const struct timespec *tp)
+{
+  /* Make sure the time cvalue is OK.  */
+  if (tp->tv_nsec < 0 || tp->tv_nsec >= 1000000000)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return INLINE_SYSCALL_CALL (clock_settime, clock_id, tp);
+}
+weak_alias (__clock_settime, clock_settime)
-- 
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