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authorH. Peter Anvin <hpa@zytor.com>2012-03-05 22:40:24 +0100
committerH. Peter Anvin <hpa@zytor.com>2012-03-06 00:35:18 +0100
commite7084fd52ed71249ab2ce7a7d89d601c9d1f904c (patch)
tree354bdaa09b665f4e6d01ffdab2a26f8ceca9d630 /arch/x86/syscalls
parentx32: Provide separate is_ia32_task() and is_x32_task() predicates (diff)
downloadlinux-e7084fd52ed71249ab2ce7a7d89d601c9d1f904c.tar.xz
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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.tbl4
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