x32: Switch to a 64-bit clock_t

clock_t is used mainly to give the number of jiffies a certain process
has burned.  It is entirely feasible for a long-running process to
consume more than 2^32 jiffies especially in a multiprocess system.
As such, switch to a 64-bit clock_t for x32, just as we already
switched to a 64-bit time_t.

clock_t is only used in a handful of places, and as such it is really
not a very significant change.  The one that has the biggest impact is
in struct siginfo, but since the *size* of struct siginfo doesn't
change (it is padded to the hilt) it is fairly easy to make this a
localized change.

This also gets rid of sys_x32_times, however since this is a pretty
late change don't compactify the system call numbers; we can reuse
system call slot 521 next time we need an x32 system call.

Reported-by: Gregory M. Lueck <gregory.m.lueck@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: H. J. Lu <hjl.tools@gmail.com>
Link: http://lkml.kernel.org/r/1329696488-16970-1-git-send-email-hpa@zytor.com

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl
index 4aecc7e31166..0d778b800884 100644
--- a/arch/x86/syscalls/syscall_64.tbl
+++ b/arch/x86/syscalls/syscall_64.tbl
@@ -106,7 +106,7 @@
 97      common  getrlimit               sys_getrlimit
 98      common  getrusage               sys_getrusage
 99      common  sysinfo                 sys_sysinfo
-100     64      times                   sys_times
+100     common  times                   sys_times
 101     common  ptrace                  sys_ptrace
 102     common  getuid                  sys_getuid
 103     common  syslog                  sys_syslog
@@ -331,7 +331,7 @@
 518     x32     sendmsg                 compat_sys_sendmsg
 519     x32     recvmsg                 compat_sys_recvmsg
 520     x32     execve                  stub_x32_execve
-521     x32     times                   compat_sys_times
+# 521 available
 522     x32     rt_sigpending           sys32_rt_sigpending
 523     x32     rt_sigtimedwait         compat_sys_rt_sigtimedwait
 524     x32     rt_sigqueueinfo         sys32_rt_sigqueueinfo