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Date: Thu, 4 Feb 2010 15:56:16 -0500
From: Kyle McMartin <kyle@...artin.ca>
To: Christoph Hellwig <hch@....de>
Cc: akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
linux-arch@...r.kernel.org, tony.luck@...el.com,
ralf@...ux-mips.org, kyle@...artin.ca, benh@...nel.crashing.org,
schwidefsky@...ibm.com, jdike@...toit.com,
heiko.carstens@...ibm.com, davem@...emloft.net, tglx@...utronix.de,
mingo@...hat.com, hpa@...or.com, viro@...iv.linux.org.uk
Subject: Re: [PATCH 5/6] improve sys_newuname for compat architectures
On Thu, Feb 04, 2010 at 09:47:33PM +0100, Christoph Hellwig wrote:
> Updated version to apply without the previous sys_personality patch.
> The last patch still applies fine after this one.
>
Looks good to me.
Acked-by: Kyle McMartin <kyle@...artin.ca>
> ---
> From: Christoph Hellwig <hch@....de>
> Subject: improve sys_newuname for compat architectures
>
> On an architecture that supports 32-bit compat we need to override
> the reported machine in uname with the 32-bit value. Instead of
> doing this separately in every architecture introduce a COMPAT_UTS_MACHINE
> define in <asm/compat.h> and apply it directly in sys_newuname.
>
> Signed-off-by: Christoph Hellwig <hch@....de>
>
>
> Index: linux-2.6/arch/ia64/ia32/ia32_entry.S
> ===================================================================
> --- linux-2.6.orig/arch/ia64/ia32/ia32_entry.S 2010-02-04 21:04:47.515006002 +0100
> +++ linux-2.6/arch/ia64/ia32/ia32_entry.S 2010-02-04 21:04:59.370004548 +0100
> @@ -300,7 +300,7 @@ ia32_syscall_table:
> data8 sys32_sigreturn
> data8 ia32_clone /* 120 */
> data8 sys_setdomainname
> - data8 sys32_newuname
> + data8 sys_newuname
> data8 sys32_modify_ldt
> data8 compat_sys_adjtimex
> data8 sys32_mprotect /* 125 */
> Index: linux-2.6/arch/ia64/ia32/sys_ia32.c
> ===================================================================
> --- linux-2.6.orig/arch/ia64/ia32/sys_ia32.c 2010-02-04 21:04:56.089006537 +0100
> +++ linux-2.6/arch/ia64/ia32/sys_ia32.c 2010-02-04 21:04:59.371005234 +0100
> @@ -1613,17 +1613,6 @@ sys32_msync (unsigned int start, unsigne
> }
>
> asmlinkage long
> -sys32_newuname (struct new_utsname __user *name)
> -{
> - int ret = sys_newuname(name);
> -
> - if (!ret)
> - if (copy_to_user(name->machine, "i686\0\0\0", 8))
> - ret = -EFAULT;
> - return ret;
> -}
> -
> -asmlinkage long
> sys32_getresuid16 (u16 __user *ruid, u16 __user *euid, u16 __user *suid)
> {
> uid_t a, b, c;
> Index: linux-2.6/arch/ia64/include/asm/compat.h
> ===================================================================
> --- linux-2.6.orig/arch/ia64/include/asm/compat.h 2010-02-04 21:04:16.423254134 +0100
> +++ linux-2.6/arch/ia64/include/asm/compat.h 2010-02-04 21:04:59.376003844 +0100
> @@ -5,7 +5,8 @@
> */
> #include <linux/types.h>
>
> -#define COMPAT_USER_HZ 100
> +#define COMPAT_USER_HZ 100
> +#define COMPAT_UTS_MACHINE "i686\0\0\0"
>
> typedef u32 compat_size_t;
> typedef s32 compat_ssize_t;
> Index: linux-2.6/arch/mips/include/asm/compat.h
> ===================================================================
> --- linux-2.6.orig/arch/mips/include/asm/compat.h 2010-02-04 21:04:16.433255265 +0100
> +++ linux-2.6/arch/mips/include/asm/compat.h 2010-02-04 21:04:59.378004517 +0100
> @@ -8,7 +8,8 @@
> #include <asm/page.h>
> #include <asm/ptrace.h>
>
> -#define COMPAT_USER_HZ 100
> +#define COMPAT_USER_HZ 100
> +#define COMPAT_UTS_MACHINE "mips\0\0\0"
>
> typedef u32 compat_size_t;
> typedef s32 compat_ssize_t;
> Index: linux-2.6/arch/mips/kernel/scall64-n32.S
> ===================================================================
> --- linux-2.6.orig/arch/mips/kernel/scall64-n32.S 2010-02-04 21:04:16.444004048 +0100
> +++ linux-2.6/arch/mips/kernel/scall64-n32.S 2010-02-04 21:04:59.379004505 +0100
> @@ -181,7 +181,7 @@ EXPORT(sysn32_call_table)
> PTR sys_exit
> PTR compat_sys_wait4
> PTR sys_kill /* 6060 */
> - PTR sys_32_newuname
> + PTR sys_newuname
> PTR sys_semget
> PTR sys_semop
> PTR sys_n32_semctl
> Index: linux-2.6/arch/mips/kernel/scall64-o32.S
> ===================================================================
> --- linux-2.6.orig/arch/mips/kernel/scall64-o32.S 2010-02-04 21:04:16.461004603 +0100
> +++ linux-2.6/arch/mips/kernel/scall64-o32.S 2010-02-04 21:04:59.382004187 +0100
> @@ -325,7 +325,7 @@ sys_call_table:
> PTR sys32_sigreturn
> PTR sys32_clone /* 4120 */
> PTR sys_setdomainname
> - PTR sys_32_newuname
> + PTR sys_newuname
> PTR sys_ni_syscall /* sys_modify_ldt */
> PTR compat_sys_adjtimex
> PTR sys_mprotect /* 4125 */
> Index: linux-2.6/arch/powerpc/include/asm/syscalls.h
> ===================================================================
> --- linux-2.6.orig/arch/powerpc/include/asm/syscalls.h 2010-02-04 21:04:58.164033881 +0100
> +++ linux-2.6/arch/powerpc/include/asm/syscalls.h 2010-02-04 21:04:59.389273337 +0100
> @@ -7,7 +7,6 @@
> #include <linux/types.h>
> #include <asm/signal.h>
>
> -struct new_utsname;
> struct pt_regs;
> struct rtas_args;
> struct sigaction;
> @@ -38,7 +37,6 @@ asmlinkage long sys_rt_sigaction(int sig
> asmlinkage long ppc64_personality(unsigned long personality);
> asmlinkage int ppc_rtas(struct rtas_args __user *uargs);
> asmlinkage time_t sys64_time(time_t __user * tloc);
> -asmlinkage long ppc_newuname(struct new_utsname __user * name);
>
> asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset,
> size_t sigsetsize);
> Index: linux-2.6/arch/powerpc/include/asm/systbl.h
> ===================================================================
> --- linux-2.6.orig/arch/powerpc/include/asm/systbl.h 2010-02-04 21:04:16.488004403 +0100
> +++ linux-2.6/arch/powerpc/include/asm/systbl.h 2010-02-04 21:04:59.392274487 +0100
> @@ -125,7 +125,7 @@ SYSCALL_SPU(fsync)
> SYS32ONLY(sigreturn)
> PPC_SYS(clone)
> COMPAT_SYS_SPU(setdomainname)
> -PPC_SYS_SPU(newuname)
> +SYSCALL_SPU(newuname)
> SYSCALL(ni_syscall)
> COMPAT_SYS_SPU(adjtimex)
> SYSCALL_SPU(mprotect)
> Index: linux-2.6/kernel/sys.c
> ===================================================================
> --- linux-2.6.orig/kernel/sys.c 2010-02-04 21:04:16.711004050 +0100
> +++ linux-2.6/kernel/sys.c 2010-02-04 21:38:18.120254277 +0100
> @@ -33,6 +33,7 @@
> #include <linux/task_io_accounting_ops.h>
> #include <linux/seccomp.h>
> #include <linux/cpu.h>
> +#include <linux/personality.h>
> #include <linux/ptrace.h>
> #include <linux/fs_struct.h>
>
> @@ -1118,6 +1119,15 @@ out:
>
> DECLARE_RWSEM(uts_sem);
>
> +#ifdef COMPAT_UTS_MACHINE
> +#define override_architecture(name) \
> + (current->personality == PER_LINUX32 && \
> + copy_to_user(name->machine, COMPAT_UTS_MACHINE, \
> + sizeof(COMPAT_UTS_MACHINE)))
> +#else
> +#define override_architecture(name) 0
> +#endif
> +
> SYSCALL_DEFINE1(newuname, struct new_utsname __user *, name)
> {
> int errno = 0;
> @@ -1126,6 +1136,9 @@ SYSCALL_DEFINE1(newuname, struct new_uts
> if (copy_to_user(name, utsname(), sizeof *name))
> errno = -EFAULT;
> up_read(&uts_sem);
> +
> + if (!errno && override_architecture(name))
> + errno = -EFAULT;
> return errno;
> }
>
> Index: linux-2.6/arch/parisc/include/asm/compat.h
> ===================================================================
> --- linux-2.6.orig/arch/parisc/include/asm/compat.h 2010-02-04 21:04:16.533024372 +0100
> +++ linux-2.6/arch/parisc/include/asm/compat.h 2010-02-04 21:04:59.408253613 +0100
> @@ -7,7 +7,8 @@
> #include <linux/sched.h>
> #include <linux/thread_info.h>
>
> -#define COMPAT_USER_HZ 100
> +#define COMPAT_USER_HZ 100
> +#define COMPAT_UTS_MACHINE "parisc\0\0"
>
> typedef u32 compat_size_t;
> typedef s32 compat_ssize_t;
> Index: linux-2.6/arch/parisc/kernel/sys_parisc.c
> ===================================================================
> --- linux-2.6.orig/arch/parisc/kernel/sys_parisc.c 2010-02-04 21:04:16.548004349 +0100
> +++ linux-2.6/arch/parisc/kernel/sys_parisc.c 2010-02-04 21:04:59.413274852 +0100
> @@ -234,18 +234,3 @@ long parisc_personality(unsigned long pe
>
> return err;
> }
> -
> -long parisc_newuname(struct new_utsname __user *name)
> -{
> - int err = sys_newuname(name);
> -
> -#ifdef CONFIG_COMPAT
> - if (!err && personality(current->personality) == PER_LINUX32) {
> - if (__put_user(0, name->machine + 6) ||
> - __put_user(0, name->machine + 7))
> - err = -EFAULT;
> - }
> -#endif
> -
> - return err;
> -}
> Index: linux-2.6/arch/parisc/kernel/syscall_table.S
> ===================================================================
> --- linux-2.6.orig/arch/parisc/kernel/syscall_table.S 2010-02-04 21:04:16.559004630 +0100
> +++ linux-2.6/arch/parisc/kernel/syscall_table.S 2010-02-04 21:04:59.416005436 +0100
> @@ -127,7 +127,7 @@
> ENTRY_SAME(socketpair)
> ENTRY_SAME(setpgid)
> ENTRY_SAME(send)
> - ENTRY_OURS(newuname)
> + ENTRY_SAME(newuname)
> ENTRY_SAME(umask) /* 60 */
> ENTRY_SAME(chroot)
> ENTRY_COMP(ustat)
> Index: linux-2.6/arch/powerpc/include/asm/compat.h
> ===================================================================
> --- linux-2.6.orig/arch/powerpc/include/asm/compat.h 2010-02-04 21:04:16.501004310 +0100
> +++ linux-2.6/arch/powerpc/include/asm/compat.h 2010-02-04 21:04:59.420261913 +0100
> @@ -7,7 +7,8 @@
> #include <linux/types.h>
> #include <linux/sched.h>
>
> -#define COMPAT_USER_HZ 100
> +#define COMPAT_USER_HZ 100
> +#define COMPAT_UTS_MACHINE "ppc\0\0"
>
> typedef u32 compat_size_t;
> typedef s32 compat_ssize_t;
> Index: linux-2.6/arch/powerpc/kernel/syscalls.c
> ===================================================================
> --- linux-2.6.orig/arch/powerpc/kernel/syscalls.c 2010-02-04 21:04:58.166021355 +0100
> +++ linux-2.6/arch/powerpc/kernel/syscalls.c 2010-02-04 21:38:17.842254529 +0100
> @@ -132,19 +132,6 @@ static inline int override_machine(char
> return 0;
> }
>
> -long ppc_newuname(struct new_utsname __user * name)
> -{
> - int err = 0;
> -
> - down_read(&uts_sem);
> - if (copy_to_user(name, utsname(), sizeof(*name)))
> - err = -EFAULT;
> - up_read(&uts_sem);
> - if (!err)
> - err = override_machine(name->machine);
> - return err;
> -}
> -
> int sys_uname(struct old_utsname __user *name)
> {
> int err = 0;
> Index: linux-2.6/arch/s390/include/asm/compat.h
> ===================================================================
> --- linux-2.6.orig/arch/s390/include/asm/compat.h 2010-02-04 21:04:16.572004467 +0100
> +++ linux-2.6/arch/s390/include/asm/compat.h 2010-02-04 21:04:59.428253990 +0100
> @@ -35,7 +35,8 @@
>
> extern long psw32_user_bits;
>
> -#define COMPAT_USER_HZ 100
> +#define COMPAT_USER_HZ 100
> +#define COMPAT_UTS_MACHINE "s390\0\0\0\0"
>
> typedef u32 compat_size_t;
> typedef s32 compat_ssize_t;
> Index: linux-2.6/arch/s390/kernel/compat_wrapper.S
> ===================================================================
> --- linux-2.6.orig/arch/s390/kernel/compat_wrapper.S 2010-02-04 21:04:16.579004379 +0100
> +++ linux-2.6/arch/s390/kernel/compat_wrapper.S 2010-02-04 21:04:59.431280911 +0100
> @@ -547,7 +547,7 @@ sys32_setdomainname_wrapper:
> .globl sys32_newuname_wrapper
> sys32_newuname_wrapper:
> llgtr %r2,%r2 # struct new_utsname *
> - jg sys_s390_newuname # branch to system call
> + jg sys_newuname # branch to system call
>
> .globl compat_sys_adjtimex_wrapper
> compat_sys_adjtimex_wrapper:
> Index: linux-2.6/arch/s390/kernel/entry.h
> ===================================================================
> --- linux-2.6.orig/arch/s390/kernel/entry.h 2010-02-04 21:04:58.169004346 +0100
> +++ linux-2.6/arch/s390/kernel/entry.h 2010-02-04 21:05:25.732256977 +0100
> @@ -24,7 +24,6 @@ int __cpuinit start_secondary(void *cpuv
> void __init startup_init(void);
> void die(const char * str, struct pt_regs * regs, long err);
>
> -struct new_utsname;
> struct s390_mmap_arg_struct;
> struct fadvise64_64_args;
> struct old_sigaction;
> @@ -32,7 +31,6 @@ struct old_sigaction;
> long sys_mmap2(struct s390_mmap_arg_struct __user *arg);
> long sys_s390_ipc(uint call, int first, unsigned long second,
> unsigned long third, void __user *ptr);
> -long sys_s390_newuname(struct new_utsname __user *name);
> long sys_s390_personality(unsigned long personality);
> long sys_s390_fadvise64(int fd, u32 offset_high, u32 offset_low,
> size_t len, int advice);
> Index: linux-2.6/arch/s390/kernel/syscalls.S
> ===================================================================
> --- linux-2.6.orig/arch/s390/kernel/syscalls.S 2010-02-04 21:04:58.176004467 +0100
> +++ linux-2.6/arch/s390/kernel/syscalls.S 2010-02-04 21:04:59.444255674 +0100
> @@ -130,7 +130,7 @@ SYSCALL(sys_fsync,sys_fsync,sys32_fsync_
> SYSCALL(sys_sigreturn,sys_sigreturn,sys32_sigreturn)
> SYSCALL(sys_clone,sys_clone,sys_clone_wrapper) /* 120 */
> SYSCALL(sys_setdomainname,sys_setdomainname,sys32_setdomainname_wrapper)
> -SYSCALL(sys_newuname,sys_s390_newuname,sys32_newuname_wrapper)
> +SYSCALL(sys_newuname,sys_newuname,sys32_newuname_wrapper)
> NI_SYSCALL /* modify_ldt for i386 */
> SYSCALL(sys_adjtimex,sys_adjtimex,compat_sys_adjtimex_wrapper)
> SYSCALL(sys_mprotect,sys_mprotect,sys32_mprotect_wrapper) /* 125 */
> Index: linux-2.6/arch/sparc/include/asm/compat.h
> ===================================================================
> --- linux-2.6.orig/arch/sparc/include/asm/compat.h 2010-02-04 21:04:16.619005623 +0100
> +++ linux-2.6/arch/sparc/include/asm/compat.h 2010-02-04 21:04:59.448255624 +0100
> @@ -5,7 +5,8 @@
> */
> #include <linux/types.h>
>
> -#define COMPAT_USER_HZ 100
> +#define COMPAT_USER_HZ 100
> +#define COMPAT_UTS_MACHINE "sparc\0\0"
>
> typedef u32 compat_size_t;
> typedef s32 compat_ssize_t;
> Index: linux-2.6/arch/x86/include/asm/compat.h
> ===================================================================
> --- linux-2.6.orig/arch/x86/include/asm/compat.h 2010-02-04 21:04:16.650004536 +0100
> +++ linux-2.6/arch/x86/include/asm/compat.h 2010-02-04 21:04:59.450256088 +0100
> @@ -8,7 +8,8 @@
> #include <linux/sched.h>
> #include <asm/user32.h>
>
> -#define COMPAT_USER_HZ 100
> +#define COMPAT_USER_HZ 100
> +#define COMPAT_UTS_MACHINE "i686\0\0"
>
> typedef u32 compat_size_t;
> typedef s32 compat_ssize_t;
> Index: linux-2.6/arch/x86/include/asm/syscalls.h
> ===================================================================
> --- linux-2.6.orig/arch/x86/include/asm/syscalls.h 2010-02-04 21:04:58.213255780 +0100
> +++ linux-2.6/arch/x86/include/asm/syscalls.h 2010-02-04 21:38:17.929254492 +0100
> @@ -68,11 +68,8 @@ int sys_vm86(unsigned long, unsigned lon
> long sys_arch_prctl(int, unsigned long);
>
> /* kernel/sys_x86_64.c */
> -struct new_utsname;
> -
> asmlinkage long sys_mmap(unsigned long, unsigned long, unsigned long,
> unsigned long, unsigned long, unsigned long);
> -asmlinkage long sys_uname(struct new_utsname __user *);
>
> #endif /* CONFIG_X86_32 */
> #endif /* _ASM_X86_SYSCALLS_H */
> Index: linux-2.6/arch/x86/include/asm/unistd_64.h
> ===================================================================
> --- linux-2.6.orig/arch/x86/include/asm/unistd_64.h 2010-02-04 21:04:16.670004354 +0100
> +++ linux-2.6/arch/x86/include/asm/unistd_64.h 2010-02-04 21:38:17.955255146 +0100
> @@ -146,7 +146,7 @@ __SYSCALL(__NR_wait4, sys_wait4)
> #define __NR_kill 62
> __SYSCALL(__NR_kill, sys_kill)
> #define __NR_uname 63
> -__SYSCALL(__NR_uname, sys_uname)
> +__SYSCALL(__NR_uname, sys_newuname)
>
> #define __NR_semget 64
> __SYSCALL(__NR_semget, sys_semget)
> Index: linux-2.6/arch/x86/kernel/sys_x86_64.c
> ===================================================================
> --- linux-2.6.orig/arch/x86/kernel/sys_x86_64.c 2010-02-04 21:04:16.679004381 +0100
> +++ linux-2.6/arch/x86/kernel/sys_x86_64.c 2010-02-04 21:04:59.457258794 +0100
> @@ -209,15 +209,3 @@ bottomup:
>
> return addr;
> }
> -
> -
> -SYSCALL_DEFINE1(uname, struct new_utsname __user *, name)
> -{
> - int err;
> - down_read(&uts_sem);
> - err = copy_to_user(name, utsname(), sizeof(*name));
> - up_read(&uts_sem);
> - if (personality(current->personality) == PER_LINUX32)
> - err |= copy_to_user(&name->machine, "i686", 5);
> - return err ? -EFAULT : 0;
> -}
> Index: linux-2.6/arch/um/sys-x86_64/syscall_table.c
> ===================================================================
> --- linux-2.6.orig/arch/um/sys-x86_64/syscall_table.c 2010-02-04 21:04:16.686004503 +0100
> +++ linux-2.6/arch/um/sys-x86_64/syscall_table.c 2010-02-04 21:04:59.461254902 +0100
> @@ -26,11 +26,6 @@
>
> /* On UML we call it this way ("old" means it's not mmap2) */
> #define sys_mmap old_mmap
> -/*
> - * On x86-64 sys_uname is actually sys_newuname plus a compatibility trick.
> - * See arch/x86_64/kernel/sys_x86_64.c
> - */
> -#define sys_uname sys_uname64
>
> #define stub_clone sys_clone
> #define stub_fork sys_fork
> Index: linux-2.6/arch/um/sys-x86_64/syscalls.c
> ===================================================================
> --- linux-2.6.orig/arch/um/sys-x86_64/syscalls.c 2010-02-04 21:04:16.698004422 +0100
> +++ linux-2.6/arch/um/sys-x86_64/syscalls.c 2010-02-04 21:04:59.461254902 +0100
> @@ -12,20 +12,6 @@
> #include "asm/uaccess.h"
> #include "os.h"
>
> -asmlinkage long sys_uname64(struct new_utsname __user * name)
> -{
> - int err;
> -
> - down_read(&uts_sem);
> - err = copy_to_user(name, utsname(), sizeof (*name));
> - up_read(&uts_sem);
> -
> - if (personality(current->personality) == PER_LINUX32)
> - err |= copy_to_user(&name->machine, "i686", 5);
> -
> - return err ? -EFAULT : 0;
> -}
> -
> long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr)
> {
> unsigned long *ptr = addr, tmp;
> Index: linux-2.6/arch/mips/kernel/linux32.c
> ===================================================================
> --- linux-2.6.orig/arch/mips/kernel/linux32.c 2010-02-04 21:04:39.686255300 +0100
> +++ linux-2.6/arch/mips/kernel/linux32.c 2010-02-04 21:05:03.925004298 +0100
> @@ -250,22 +250,6 @@ SYSCALL_DEFINE5(n32_msgrcv, int, msqid,
> }
> #endif
>
> -SYSCALL_DEFINE1(32_newuname, struct new_utsname __user *, name)
> -{
> - int ret = 0;
> -
> - down_read(&uts_sem);
> - if (copy_to_user(name, utsname(), sizeof *name))
> - ret = -EFAULT;
> - up_read(&uts_sem);
> -
> - if (current->personality == PER_LINUX32 && !ret)
> - if (copy_to_user(name->machine, "mips\0\0\0", 8))
> - ret = -EFAULT;
> -
> - return ret;
> -}
> -
> SYSCALL_DEFINE1(32_personality, unsigned long, personality)
> {
> int ret;
> Index: linux-2.6/arch/s390/kernel/sys_s390.c
> ===================================================================
> --- linux-2.6.orig/arch/s390/kernel/sys_s390.c 2010-02-04 21:05:58.941255359 +0100
> +++ linux-2.6/arch/s390/kernel/sys_s390.c 2010-02-04 21:06:10.576254718 +0100
> @@ -131,17 +131,6 @@ SYSCALL_DEFINE5(s390_ipc, uint, call, in
> }
>
> #ifdef CONFIG_64BIT
> -SYSCALL_DEFINE1(s390_newuname, struct new_utsname __user *, name)
> -{
> - int ret = sys_newuname(name);
> -
> - if (personality(current->personality) == PER_LINUX32 && !ret) {
> - ret = copy_to_user(name->machine, "s390\0\0\0\0", 8);
> - if (ret) ret = -EFAULT;
> - }
> - return ret;
> -}
> -
> SYSCALL_DEFINE1(s390_personality, unsigned long, personality)
> {
> int ret;
> Index: linux-2.6/arch/sparc/kernel/sys_sparc_64.c
> ===================================================================
> --- linux-2.6.orig/arch/sparc/kernel/sys_sparc_64.c 2010-02-04 21:06:31.211005185 +0100
> +++ linux-2.6/arch/sparc/kernel/sys_sparc_64.c 2010-02-04 21:06:39.533004293 +0100
> @@ -511,17 +511,6 @@ out:
> return err;
> }
>
> -SYSCALL_DEFINE1(sparc64_newuname, struct new_utsname __user *, name)
> -{
> - int ret = sys_newuname(name);
> -
> - if (current->personality == PER_LINUX32 && !ret) {
> - ret = (copy_to_user(name->machine, "sparc\0\0", 8)
> - ? -EFAULT : 0);
> - }
> - return ret;
> -}
> -
> SYSCALL_DEFINE1(sparc64_personality, unsigned long, personality)
> {
> int ret;
> Index: linux-2.6/arch/sparc/kernel/systbls.h
> ===================================================================
> --- linux-2.6.orig/arch/sparc/kernel/systbls.h 2010-02-04 21:06:50.988254973 +0100
> +++ linux-2.6/arch/sparc/kernel/systbls.h 2010-02-04 21:07:03.292254939 +0100
> @@ -6,15 +6,12 @@
> #include <asm/utrap.h>
> #include <asm/signal.h>
>
> -struct new_utsname;
> -
> extern asmlinkage unsigned long sys_getpagesize(void);
> extern asmlinkage long sparc_pipe(struct pt_regs *regs);
> extern asmlinkage long sys_sparc_ipc(unsigned int call, int first,
> unsigned long second,
> unsigned long third,
> void __user *ptr, long fifth);
> -extern asmlinkage long sparc64_newuname(struct new_utsname __user *name);
> extern asmlinkage long sparc64_personality(unsigned long personality);
> extern asmlinkage long sys64_munmap(unsigned long addr, size_t len);
> extern asmlinkage unsigned long sys64_mremap(unsigned long addr,
> Index: linux-2.6/arch/sparc/kernel/systbls.h.rej
> ===================================================================
> --- linux-2.6.orig/arch/sparc/kernel/systbls.h.rej 2010-02-04 21:06:51.001255089 +0100
> +++ /dev/null 1970-01-01 00:00:00.000000000 +0000
> @@ -1,18 +0,0 @@
> ---- arch/sparc/kernel/systbls.h 2010-01-30 22:45:23.821271031 +0100
> -+++ arch/sparc/kernel/systbls.h 2010-01-30 22:45:24.324006540 +0100
> -@@ -6,15 +6,12 @@
> - #include <asm/utrap.h>
> - #include <asm/signal.h>
> -
> --struct new_utsname;
> --
> - extern asmlinkage unsigned long sys_getpagesize(void);
> - extern asmlinkage long sparc_pipe(struct pt_regs *regs);
> - extern asmlinkage long sys_sparc_ipc(unsigned int call, int first,
> - unsigned long second,
> - unsigned long third,
> - void __user *ptr, long fifth);
> --extern asmlinkage long sparc64_newuname(struct new_utsname __user *name);
> - extern asmlinkage long sys64_munmap(unsigned long addr, size_t len);
> - extern asmlinkage unsigned long sys64_mremap(unsigned long addr,
> - unsigned long old_len,
> Index: linux-2.6/arch/sparc/kernel/systbls_64.S
> ===================================================================
> --- linux-2.6.orig/arch/sparc/kernel/systbls_64.S 2010-02-04 21:07:26.630004919 +0100
> +++ linux-2.6/arch/sparc/kernel/systbls_64.S 2010-02-04 21:07:52.078255284 +0100
> @@ -55,7 +55,7 @@ sys_call_table32:
> /*170*/ .word sys32_lsetxattr, sys32_fsetxattr, sys_getxattr, sys_lgetxattr, compat_sys_getdents
> .word sys_setsid, sys_fchdir, sys32_fgetxattr, sys_listxattr, sys_llistxattr
> /*180*/ .word sys32_flistxattr, sys_removexattr, sys_lremovexattr, compat_sys_sigpending, sys_ni_syscall
> - .word sys32_setpgid, sys32_fremovexattr, sys32_tkill, sys32_exit_group, sys_sparc64_newuname
> + .word sys32_setpgid, sys32_fremovexattr, sys32_tkill, sys32_exit_group, sys_newuname
> /*190*/ .word sys32_init_module, sys_sparc64_personality, sys_remap_file_pages, sys32_epoll_create, sys32_epoll_ctl
> .word sys32_epoll_wait, sys32_ioprio_set, sys_getppid, sys32_sigaction, sys_sgetmask
> /*200*/ .word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
> @@ -130,7 +130,7 @@ sys_call_table:
> /*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents
> .word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr
> /*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_ni_syscall
> - .word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_sparc64_newuname
> + .word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname
> /*190*/ .word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl
> .word sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_nis_syscall, sys_sgetmask
> /*200*/ .word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall
>
--
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