diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-03 09:52:04 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-03 09:52:04 -0700 |
commit | 3ba113d14cedcd88105a3b9c90f8ecce829e1095 (patch) | |
tree | 357f50c6a45bf57a16d46b3157dfcd4e28233079 /arch/parisc/kernel/process.c | |
parent | bad6a5c08c119572c888d5df2bd7691a4da6b9e8 (diff) | |
parent | b609308e1415efebdf79ebd553f4dd47b0ff2722 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: (23 commits)
parisc: move dereference_function_descriptor to process.c
parisc: Move kernel Elf_Fdesc define to <asm/elf.h>
parisc: fix build when ARCH_HAS_KMAP
parisc: fix "make tar-pkg"
parisc: drivers: fix warnings
parisc: select BUG always
parisc: asm/pdc.h should include asm/page.h
parisc: led: remove proc_dir_entry::owner
parisc: fix macro expansion in atomic.h
parisc: iosapic: fix build breakage
parisc: oops_enter()/oops_exit() in die()
parisc: document light weight syscall ABI
parisc: blink all or loadavg LEDs on oops
parisc: add ftrace (function and graph tracer) functionality
parisc: simplify sys_clone()
parisc: add LATENCYTOP_SUPPORT and CONFIG_STACKTRACE_SUPPORT
parisc: allow to build with 16k default kernel page size
parisc: expose 32/64-bit capabilities in cpuinfo
parisc: use constants instead of numbers in assembly
parisc: fix usage of 32bit PTE page table entries on 32bit kernels
...
Diffstat (limited to 'arch/parisc/kernel/process.c')
-rw-r--r-- | arch/parisc/kernel/process.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 8aa591ed9127..6f69101f90bb 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -46,14 +46,15 @@ #include <linux/stddef.h> #include <linux/unistd.h> #include <linux/kallsyms.h> +#include <linux/uaccess.h> #include <asm/io.h> #include <asm/asm-offsets.h> #include <asm/pdc.h> #include <asm/pdc_chassis.h> #include <asm/pgalloc.h> -#include <asm/uaccess.h> #include <asm/unwind.h> +#include <asm/sections.h> /* * The idle thread. There's no useful work to be @@ -231,8 +232,8 @@ sys_clone(unsigned long clone_flags, unsigned long usp, However, these last 3 args are only examined if the proper flags are set. */ - int __user *child_tidptr; - int __user *parent_tidptr; + int __user *parent_tidptr = (int __user *)regs->gr[24]; + int __user *child_tidptr = (int __user *)regs->gr[22]; /* usp must be word aligned. This also prevents users from * passing in the value 1 (which is the signal for a special @@ -243,16 +244,6 @@ sys_clone(unsigned long clone_flags, unsigned long usp, if (usp == 0) usp = regs->gr[30]; - if (clone_flags & CLONE_PARENT_SETTID) - parent_tidptr = (int __user *)regs->gr[24]; - else - parent_tidptr = NULL; - - if (clone_flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)) - child_tidptr = (int __user *)regs->gr[22]; - else - child_tidptr = NULL; - return do_fork(clone_flags, usp, regs, 0, parent_tidptr, child_tidptr); } @@ -400,3 +391,15 @@ get_wchan(struct task_struct *p) } while (count++ < 16); return 0; } + +#ifdef CONFIG_64BIT +void *dereference_function_descriptor(void *ptr) +{ + Elf64_Fdesc *desc = ptr; + void *p; + + if (!probe_kernel_address(&desc->addr, p)) + ptr = p; + return ptr; +} +#endif |