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-rw-r--r--arch/tile/mm/elf.c165
1 files changed, 0 insertions, 165 deletions
diff --git a/arch/tile/mm/elf.c b/arch/tile/mm/elf.c
deleted file mode 100644
index 889901824400..000000000000
--- a/arch/tile/mm/elf.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, version 2.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/binfmts.h>
-#include <linux/compat.h>
-#include <linux/mman.h>
-#include <linux/file.h>
-#include <linux/elf.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/sections.h>
-#include <asm/vdso.h>
-#include <arch/sim.h>
-
-/* Notify a running simulator, if any, that an exec just occurred. */
-static void sim_notify_exec(const char *binary_name)
-{
- unsigned char c;
- do {
- c = *binary_name++;
- __insn_mtspr(SPR_SIM_CONTROL,
- (SIM_CONTROL_OS_EXEC
- | (c << _SIM_CONTROL_OPERATOR_BITS)));
-
- } while (c);
-}
-
-static int notify_exec(struct mm_struct *mm)
-{
- int ret = 0;
- char *buf, *path;
- struct vm_area_struct *vma;
- struct file *exe_file;
-
- if (!sim_is_simulator())
- return 1;
-
- buf = (char *) __get_free_page(GFP_KERNEL);
- if (buf == NULL)
- return 0;
-
- exe_file = get_mm_exe_file(mm);
- if (exe_file == NULL)
- goto done_free;
-
- path = file_path(exe_file, buf, PAGE_SIZE);
- if (IS_ERR(path))
- goto done_put;
-
- down_read(&mm->mmap_sem);
- for (vma = current->mm->mmap; ; vma = vma->vm_next) {
- if (vma == NULL) {
- up_read(&mm->mmap_sem);
- goto done_put;
- }
- if (vma->vm_file == exe_file)
- break;
- }
-
- /*
- * Notify simulator of an ET_DYN object so we know the load address.
- * The somewhat cryptic overuse of SIM_CONTROL_DLOPEN allows us
- * to be backward-compatible with older simulator releases.
- */
- if (vma->vm_start == (ELF_ET_DYN_BASE & PAGE_MASK)) {
- char buf[64];
- int i;
-
- snprintf(buf, sizeof(buf), "0x%lx:@", vma->vm_start);
- for (i = 0; ; ++i) {
- char c = buf[i];
- __insn_mtspr(SPR_SIM_CONTROL,
- (SIM_CONTROL_DLOPEN
- | (c << _SIM_CONTROL_OPERATOR_BITS)));
- if (c == '\0') {
- ret = 1; /* success */
- break;
- }
- }
- }
- up_read(&mm->mmap_sem);
-
- sim_notify_exec(path);
-done_put:
- fput(exe_file);
-done_free:
- free_page((unsigned long)buf);
- return ret;
-}
-
-/* Notify a running simulator, if any, that we loaded an interpreter. */
-static void sim_notify_interp(unsigned long load_addr)
-{
- size_t i;
- for (i = 0; i < sizeof(load_addr); i++) {
- unsigned char c = load_addr >> (i * 8);
- __insn_mtspr(SPR_SIM_CONTROL,
- (SIM_CONTROL_OS_INTERP
- | (c << _SIM_CONTROL_OPERATOR_BITS)));
- }
-}
-
-
-int arch_setup_additional_pages(struct linux_binprm *bprm,
- int executable_stack)
-{
- struct mm_struct *mm = current->mm;
- int retval = 0;
-
- /*
- * Notify the simulator that an exec just occurred.
- * If we can't find the filename of the mapping, just use
- * whatever was passed as the linux_binprm filename.
- */
- if (!notify_exec(mm))
- sim_notify_exec(bprm->filename);
-
- down_write(&mm->mmap_sem);
-
- retval = setup_vdso_pages();
-
-#ifndef __tilegx__
- /*
- * Set up a user-interrupt mapping here; the user can't
- * create one themselves since it is above TASK_SIZE.
- * We make it unwritable by default, so the model for adding
- * interrupt vectors always involves an mprotect.
- */
- if (!retval) {
- unsigned long addr = MEM_USER_INTRPT;
- addr = mmap_region(NULL, addr, INTRPT_SIZE,
- VM_READ|VM_EXEC|
- VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC, 0, NULL);
- if (addr > (unsigned long) -PAGE_SIZE)
- retval = (int) addr;
- }
-#endif
-
- up_write(&mm->mmap_sem);
-
- return retval;
-}
-
-
-void elf_plat_init(struct pt_regs *regs, unsigned long load_addr)
-{
- /* Zero all registers. */
- memset(regs, 0, sizeof(*regs));
-
- /* Report the interpreter's load address. */
- sim_notify_interp(load_addr);
-}