1 files changed, 0 insertions, 283 deletions
diff --git a/ANDROID_3.4.5/arch/x86/kernel/sys_x86_64.c b/ANDROID_3.4.5/arch/x86/kernel/sys_x86_64.c
deleted file mode 100644
index b4d3c392..00000000
--- a/ANDROID_3.4.5/arch/x86/kernel/sys_x86_64.c
+++ /dev/null
@@ -1,283 +0,0 @@
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/syscalls.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/smp.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/mman.h>
-#include <linux/file.h>
-#include <linux/utsname.h>
-#include <linux/personality.h>
-#include <linux/random.h>
-#include <linux/uaccess.h>
-#include <linux/elf.h>
-
-#include <asm/ia32.h>
-#include <asm/syscalls.h>
-
-/*
- * Align a virtual address to avoid aliasing in the I$ on AMD F15h.
- *
- * @flags denotes the allocation direction - bottomup or topdown -
- * or vDSO; see call sites below.
- */
-unsigned long align_addr(unsigned long addr, struct file *filp,
-			 enum align_flags flags)
-{
-	unsigned long tmp_addr;
-
-	/* handle 32- and 64-bit case with a single conditional */
-	if (va_align.flags < 0 || !(va_align.flags & (2 - mmap_is_ia32())))
-		return addr;
-
-	if (!(current->flags & PF_RANDOMIZE))
-		return addr;
-
-	if (!((flags & ALIGN_VDSO) || filp))
-		return addr;
-
-	tmp_addr = addr;
-
-	/*
-	 * We need an address which is <= than the original
-	 * one only when in topdown direction.
-	 */
-	if (!(flags & ALIGN_TOPDOWN))
-		tmp_addr += va_align.mask;
-
-	tmp_addr &= ~va_align.mask;
-
-	return tmp_addr;
-}
-
-static int __init control_va_addr_alignment(char *str)
-{
-	/* guard against enabling this on other CPU families */
-	if (va_align.flags < 0)
-		return 1;
-
-	if (*str == 0)
-		return 1;
-
-	if (*str == '=')
-		str++;
-
-	if (!strcmp(str, "32"))
-		va_align.flags = ALIGN_VA_32;
-	else if (!strcmp(str, "64"))
-		va_align.flags = ALIGN_VA_64;
-	else if (!strcmp(str, "off"))
-		va_align.flags = 0;
-	else if (!strcmp(str, "on"))
-		va_align.flags = ALIGN_VA_32 | ALIGN_VA_64;
-	else
-		return 0;
-
-	return 1;
-}
-__setup("align_va_addr", control_va_addr_alignment);
-
-SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
-		unsigned long, prot, unsigned long, flags,
-		unsigned long, fd, unsigned long, off)
-{
-	long error;
-	error = -EINVAL;
-	if (off & ~PAGE_MASK)
-		goto out;
-
-	error = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
-out:
-	return error;
-}
-
-static void find_start_end(unsigned long flags, unsigned long *begin,
-			   unsigned long *end)
-{
-	if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) {
-		unsigned long new_begin;
-		/* This is usually used needed to map code in small
-		   model, so it needs to be in the first 31bit. Limit
-		   it to that.  This means we need to move the
-		   unmapped base down for this case. This can give
-		   conflicts with the heap, but we assume that glibc
-		   malloc knows how to fall back to mmap. Give it 1GB
-		   of playground for now. -AK */
-		*begin = 0x40000000;
-		*end = 0x80000000;
-		if (current->flags & PF_RANDOMIZE) {
-			new_begin = randomize_range(*begin, *begin + 0x02000000, 0);
-			if (new_begin)
-				*begin = new_begin;
-		}
-	} else {
-		*begin = TASK_UNMAPPED_BASE;
-		*end = TASK_SIZE;
-	}
-}
-
-unsigned long
-arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
-{
-	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
-	unsigned long start_addr;
-	unsigned long begin, end;
-
-	if (flags & MAP_FIXED)
-		return addr;
-
-	find_start_end(flags, &begin, &end);
-
-	if (len > end)
-		return -ENOMEM;
-
-	if (addr) {
-		addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
-		if (end - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
-			return addr;
-	}
-	if (((flags & MAP_32BIT) || test_thread_flag(TIF_ADDR32))
-	    && len <= mm->cached_hole_size) {
-		mm->cached_hole_size = 0;
-		mm->free_area_cache = begin;
-	}
-	addr = mm->free_area_cache;
-	if (addr < begin)
-		addr = begin;
-	start_addr = addr;
-
-full_search:
-
-	addr = align_addr(addr, filp, 0);
-
-	for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (end - len < addr) {
-			/*
-			 * Start a new search - just in case we missed
-			 * some holes.
-			 */
-			if (start_addr != begin) {
-				start_addr = addr = begin;
-				mm->cached_hole_size = 0;
-				goto full_search;
-			}
-			return -ENOMEM;
-		}
-		if (!vma || addr + len <= vma->vm_start) {
-			/*
-			 * Remember the place where we stopped the search:
-			 */
-			mm->free_area_cache = addr + len;
-			return addr;
-		}
-		if (addr + mm->cached_hole_size < vma->vm_start)
-			mm->cached_hole_size = vma->vm_start - addr;
-
-		addr = vma->vm_end;
-		addr = align_addr(addr, filp, 0);
-	}
-}
-
-
-unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
-{
-	struct vm_area_struct *vma;
-	struct mm_struct *mm = current->mm;
-	unsigned long addr = addr0, start_addr;
-
-	/* requested length too big for entire address space */
-	if (len > TASK_SIZE)
-		return -ENOMEM;
-
-	if (flags & MAP_FIXED)
-		return addr;
-
-	/* for MAP_32BIT mappings we force the legact mmap base */
-	if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT))
-		goto bottomup;
-
-	/* requesting a specific address */
-	if (addr) {
-		addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
-			return addr;
-	}
-
-	/* check if free_area_cache is useful for us */
-	if (len <= mm->cached_hole_size) {
-		mm->cached_hole_size = 0;
-		mm->free_area_cache = mm->mmap_base;
-	}
-
-try_again:
-	/* either no address requested or can't fit in requested address hole */
-	start_addr = addr = mm->free_area_cache;
-
-	if (addr < len)
-		goto fail;
-
-	addr -= len;
-	do {
-		addr = align_addr(addr, filp, ALIGN_TOPDOWN);
-
-		/*
-		 * Lookup failure means no vma is above this address,
-		 * else if new region fits below vma->vm_start,
-		 * return with success:
-		 */
-		vma = find_vma(mm, addr);
-		if (!vma || addr+len <= vma->vm_start)
-			/* remember the address as a hint for next time */
-			return mm->free_area_cache = addr;
-
-		/* remember the largest hole we saw so far */
-		if (addr + mm->cached_hole_size < vma->vm_start)
-			mm->cached_hole_size = vma->vm_start - addr;
-
-		/* try just below the current vma->vm_start */
-		addr = vma->vm_start-len;
-	} while (len < vma->vm_start);
-
-fail:
-	/*
-	 * if hint left us with no space for the requested
-	 * mapping then try again:
-	 */
-	if (start_addr != mm->mmap_base) {
-		mm->free_area_cache = mm->mmap_base;
-		mm->cached_hole_size = 0;
-		goto try_again;
-	}
-
-bottomup:
-	/*
-	 * A failed mmap() very likely causes application failure,
-	 * so fall back to the bottom-up function here. This scenario
-	 * can happen with large stack limits and large mmap()
-	 * allocations.
-	 */
-	mm->cached_hole_size = ~0UL;
-	mm->free_area_cache = TASK_UNMAPPED_BASE;
-	addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
-	/*
-	 * Restore the topdown base:
-	 */
-	mm->free_area_cache = mm->mmap_base;
-	mm->cached_hole_size = ~0UL;
-
-	return addr;
-}