From 7c15164f1772f7b0e093ff5dd1027051cddc764a Mon Sep 17 00:00:00 2001
From: Jeff Johnston <jjohnstn@redhat.com>
Date: Wed, 30 Nov 2005 23:37:14 +0000
Subject: [PATCH] 2005-11-30  Shaun Jackman  <sjackman@gmail.com>

        * arm/libcfunc.c (clock, sleep, usleep): New functions.
        * arm/syscalls.c (_clock): New function.
        (_times): Call _clock.
---
 libgloss/ChangeLog      |  6 ++++++
 libgloss/arm/libcfunc.c | 32 +++++++++++++++++++++++++++++++-
 libgloss/arm/syscalls.c | 11 ++++++++++-
 3 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/libgloss/ChangeLog b/libgloss/ChangeLog
index d445ced78..0b49c1cd1 100644
--- a/libgloss/ChangeLog
+++ b/libgloss/ChangeLog
@@ -1,3 +1,9 @@
+2005-11-30  Shaun Jackman  <sjackman@gmail.com>
+
+	* arm/libcfunc.c (clock, sleep, usleep): New functions.
+	* arm/syscalls.c (_clock): New function.
+	(_times): Call _clock.
+
 2005-11-17  Shaun Jackman  <sjackman@gmail.com>
 
 	* libgloss/arm/libcfunc.c (isatty): Call _isatty. GDB now supports
diff --git a/libgloss/arm/libcfunc.c b/libgloss/arm/libcfunc.c
index f28f527b2..ffad2e7e0 100644
--- a/libgloss/arm/libcfunc.c
+++ b/libgloss/arm/libcfunc.c
@@ -43,6 +43,13 @@ alarm (unsigned seconds)
 	return 0;
 }
 
+clock_t _clock(void);
+clock_t __attribute__((weak))
+clock(void)
+{
+      return _clock();
+}
+
 int _isatty(int fildes);
 int __attribute__((weak))
 isatty(int fildes)
@@ -51,8 +58,31 @@ isatty(int fildes)
 }
 
 int __attribute__((weak))
-pause (void)
+pause(void)
 {
 	errno = ENOSYS;
 	return -1;
 }
+
+#include <sys/types.h>
+#include <time.h>
+
+unsigned __attribute__((weak))
+sleep(unsigned seconds)
+{
+	clock_t t0 = _clock();
+	clock_t dt = seconds * CLOCKS_PER_SEC;
+
+	while (_clock() - t0  < dt);
+	return 0;
+}
+
+int __attribute__((weak))
+usleep(useconds_t useconds)
+{
+	clock_t t0 = _clock();
+	clock_t dt = useconds / (1000000/CLOCKS_PER_SEC);
+
+	while (_clock() - t0  < dt);
+	return 0;
+}
diff --git a/libgloss/arm/syscalls.c b/libgloss/arm/syscalls.c
index 2701bb87a..456b68129 100644
--- a/libgloss/arm/syscalls.c
+++ b/libgloss/arm/syscalls.c
@@ -31,6 +31,7 @@ int     _getpid		_PARAMS ((int));
 int     _kill		_PARAMS ((int, int));
 void    _exit		_PARAMS ((int));
 int     _close		_PARAMS ((int));
+clock_t _clock		_PARAMS ((void));
 int     _swiclose	_PARAMS ((int));
 int     _open		_PARAMS ((const char *, int, ...));
 int     _swiopen	_PARAMS ((const char *, int));
@@ -597,7 +598,7 @@ _gettimeofday (struct timeval * tp, struct timezone * tzp)
 
 /* Return a clock that ticks at 100Hz.  */
 clock_t 
-_times (struct tms * tp)
+_clock (void)
 {
   clock_t timeval;
 
@@ -606,6 +607,14 @@ _times (struct tms * tp)
 #else
   asm ("swi %a1; mov %0, r0" : "=r" (timeval): "i" (SWI_Clock) : "r0");
 #endif
+  return timeval;
+}
+
+/* Return a clock that ticks at 100Hz.  */
+clock_t
+_times (struct tms * tp)
+{
+  clock_t timeval = _clock();
 
   if (tp)
     {