x86_64: move ia32

[pandora-kernel.git] / arch / x86_64 / ia32 / syscall32.c

diff --git a/arch/x86_64/ia32/syscall32.c b/arch/x86_64/ia32/syscall32.c
deleted file mode 100644 (file)
index 15013ba..0000000
--- a/arch/x86_64/ia32/syscall32.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/* Copyright 2002,2003 Andi Kleen, SuSE Labs */
-
-/* vsyscall handling for 32bit processes. Map a stub page into it 
-   on demand because 32bit cannot reach the kernel's fixmaps */
-
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/gfp.h>
-#include <linux/init.h>
-#include <linux/stringify.h>
-#include <linux/security.h>
-#include <asm/proto.h>
-#include <asm/tlbflush.h>
-#include <asm/ia32_unistd.h>
-#include <asm/vsyscall32.h>
-
-extern unsigned char syscall32_syscall[], syscall32_syscall_end[];
-extern unsigned char syscall32_sysenter[], syscall32_sysenter_end[];
-extern int sysctl_vsyscall32;
-
-static struct page *syscall32_pages[1];
-static int use_sysenter = -1;
-
-struct linux_binprm;
-
-/* Setup a VMA at program startup for the vsyscall page */
-int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
-{
-       struct mm_struct *mm = current->mm;
-       int ret;
-
-       down_write(&mm->mmap_sem);
-       /*
-        * MAYWRITE to allow gdb to COW and set breakpoints
-        *
-        * Make sure the vDSO gets into every core dump.
-        * Dumping its contents makes post-mortem fully interpretable later
-        * without matching up the same kernel and hardware config to see
-        * what PC values meant.
-        */
-       /* Could randomize here */
-       ret = install_special_mapping(mm, VSYSCALL32_BASE, PAGE_SIZE,
-                                     VM_READ|VM_EXEC|
-                                     VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
-                                     VM_ALWAYSDUMP,
-                                     syscall32_pages);
-       up_write(&mm->mmap_sem);
-       return ret;
-}
-
-static int __init init_syscall32(void)
-{ 
-       char *syscall32_page = (void *)get_zeroed_page(GFP_KERNEL);
-       if (!syscall32_page) 
-               panic("Cannot allocate syscall32 page"); 
-       syscall32_pages[0] = virt_to_page(syscall32_page);
-       if (use_sysenter > 0) {
-               memcpy(syscall32_page, syscall32_sysenter,
-                      syscall32_sysenter_end - syscall32_sysenter);
-       } else {
-               memcpy(syscall32_page, syscall32_syscall,
-                      syscall32_syscall_end - syscall32_syscall);
-       }       
-       return 0;
-} 
-       
-__initcall(init_syscall32); 
-
-/* May not be __init: called during resume */
-void syscall32_cpu_init(void)
-{
-       if (use_sysenter < 0)
-               use_sysenter = (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL);
-
-       /* Load these always in case some future AMD CPU supports
-          SYSENTER from compat mode too. */
-       checking_wrmsrl(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);
-       checking_wrmsrl(MSR_IA32_SYSENTER_ESP, 0ULL);
-       checking_wrmsrl(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target);
-
-       wrmsrl(MSR_CSTAR, ia32_cstar_target);
-}