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| author |   H. Peter Anvin <hpa@zytor.com> | 2012-03-05 13:40:24 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2012-03-05 15:35:18 -0800 |
| commit | e7084fd52ed71249ab2ce7a7d89d601c9d1f904c (patch) | |
| tree | 354bdaa09b665f4e6d01ffdab2a26f8ceca9d630 /arch/x86/syscalls | |
| parent | x32: Provide separate is_ia32_task() and is_x32_task() predicates (diff) | |
| download | linux-dev-e7084fd52ed71249ab2ce7a7d89d601c9d1f904c.tar.xz linux-dev-e7084fd52ed71249ab2ce7a7d89d601c9d1f904c.zip | |
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
Diffstat (limited to 'arch/x86/syscalls')
| -rw-r--r-- | arch/x86/syscalls/syscall_64.tbl | 4 |
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 |