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Diffstat (limited to 'arch/ia64/ia32/binfmt_elf32.c')
-rw-r--r--arch/ia64/ia32/binfmt_elf32.c245
1 files changed, 0 insertions, 245 deletions
diff --git a/arch/ia64/ia32/binfmt_elf32.c b/arch/ia64/ia32/binfmt_elf32.c
deleted file mode 100644
index c69552bf893..00000000000
--- a/arch/ia64/ia32/binfmt_elf32.c
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
- * IA-32 ELF support.
- *
- * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
- * Copyright (C) 2001 Hewlett-Packard Co
- * David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * 06/16/00 A. Mallick initialize csd/ssd/tssd/cflg for ia32_load_state
- * 04/13/01 D. Mosberger dropped saving tssd in ar.k1---it's not needed
- * 09/14/01 D. Mosberger fixed memory management for gdt/tss page
- */
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/security.h>
-
-#include <asm/param.h>
-#include <asm/signal.h>
-
-#include "ia32priv.h"
-#include "elfcore32.h"
-
-/* Override some function names */
-#undef start_thread
-#define start_thread ia32_start_thread
-#define elf_format elf32_format
-#define init_elf_binfmt init_elf32_binfmt
-#define exit_elf_binfmt exit_elf32_binfmt
-
-#undef CLOCKS_PER_SEC
-#define CLOCKS_PER_SEC IA32_CLOCKS_PER_SEC
-
-extern void ia64_elf32_init (struct pt_regs *regs);
-
-static void elf32_set_personality (void);
-
-static unsigned long __attribute ((unused))
-randomize_stack_top(unsigned long stack_top);
-
-#define setup_arg_pages(bprm,tos,exec) ia32_setup_arg_pages(bprm,exec)
-#define elf_map elf32_map
-
-#undef SET_PERSONALITY
-#define SET_PERSONALITY(ex) elf32_set_personality()
-
-#define elf_read_implies_exec(ex, have_pt_gnu_stack) (!(have_pt_gnu_stack))
-
-/* Ugly but avoids duplication */
-#include "../../../fs/binfmt_elf.c"
-
-extern struct page *ia32_shared_page[];
-extern unsigned long *ia32_gdt;
-extern struct page *ia32_gate_page;
-
-int
-ia32_install_shared_page (struct vm_area_struct *vma, struct vm_fault *vmf)
-{
- vmf->page = ia32_shared_page[smp_processor_id()];
- get_page(vmf->page);
- return 0;
-}
-
-int
-ia32_install_gate_page (struct vm_area_struct *vma, struct vm_fault *vmf)
-{
- vmf->page = ia32_gate_page;
- get_page(vmf->page);
- return 0;
-}
-
-
-static const struct vm_operations_struct ia32_shared_page_vm_ops = {
- .fault = ia32_install_shared_page
-};
-
-static const struct vm_operations_struct ia32_gate_page_vm_ops = {
- .fault = ia32_install_gate_page
-};
-
-void
-ia64_elf32_init (struct pt_regs *regs)
-{
- struct vm_area_struct *vma;
-
- /*
- * Map GDT below 4GB, where the processor can find it. We need to map
- * it with privilege level 3 because the IVE uses non-privileged accesses to these
- * tables. IA-32 segmentation is used to protect against IA-32 accesses to them.
- */
- vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
- if (vma) {
- vma->vm_mm = current->mm;
- vma->vm_start = IA32_GDT_OFFSET;
- vma->vm_end = vma->vm_start + PAGE_SIZE;
- vma->vm_page_prot = PAGE_SHARED;
- vma->vm_flags = VM_READ|VM_MAYREAD|VM_RESERVED;
- vma->vm_ops = &ia32_shared_page_vm_ops;
- down_write(&current->mm->mmap_sem);
- {
- if (insert_vm_struct(current->mm, vma)) {
- kmem_cache_free(vm_area_cachep, vma);
- up_write(&current->mm->mmap_sem);
- BUG();
- }
- }
- up_write(&current->mm->mmap_sem);
- }
-
- /*
- * When user stack is not executable, push sigreturn code to stack makes
- * segmentation fault raised when returning to kernel. So now sigreturn
- * code is locked in specific gate page, which is pointed by pretcode
- * when setup_frame_ia32
- */
- vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
- if (vma) {
- vma->vm_mm = current->mm;
- vma->vm_start = IA32_GATE_OFFSET;
- vma->vm_end = vma->vm_start + PAGE_SIZE;
- vma->vm_page_prot = PAGE_COPY_EXEC;
- vma->vm_flags = VM_READ | VM_MAYREAD | VM_EXEC
- | VM_MAYEXEC | VM_RESERVED;
- vma->vm_ops = &ia32_gate_page_vm_ops;
- down_write(&current->mm->mmap_sem);
- {
- if (insert_vm_struct(current->mm, vma)) {
- kmem_cache_free(vm_area_cachep, vma);
- up_write(&current->mm->mmap_sem);
- BUG();
- }
- }
- up_write(&current->mm->mmap_sem);
- }
-
- /*
- * Install LDT as anonymous memory. This gives us all-zero segment descriptors
- * until a task modifies them via modify_ldt().
- */
- vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
- if (vma) {
- vma->vm_mm = current->mm;
- vma->vm_start = IA32_LDT_OFFSET;
- vma->vm_end = vma->vm_start + PAGE_ALIGN(IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE);
- vma->vm_page_prot = PAGE_SHARED;
- vma->vm_flags = VM_READ|VM_WRITE|VM_MAYREAD|VM_MAYWRITE;
- down_write(&current->mm->mmap_sem);
- {
- if (insert_vm_struct(current->mm, vma)) {
- kmem_cache_free(vm_area_cachep, vma);
- up_write(&current->mm->mmap_sem);
- BUG();
- }
- }
- up_write(&current->mm->mmap_sem);
- }
-
- ia64_psr(regs)->ac = 0; /* turn off alignment checking */
- regs->loadrs = 0;
- /*
- * According to the ABI %edx points to an `atexit' handler. Since we don't have
- * one we'll set it to 0 and initialize all the other registers just to make
- * things more deterministic, ala the i386 implementation.
- */
- regs->r8 = 0; /* %eax */
- regs->r11 = 0; /* %ebx */
- regs->r9 = 0; /* %ecx */
- regs->r10 = 0; /* %edx */
- regs->r13 = 0; /* %ebp */
- regs->r14 = 0; /* %esi */
- regs->r15 = 0; /* %edi */
-
- current->thread.eflag = IA32_EFLAG;
- current->thread.fsr = IA32_FSR_DEFAULT;
- current->thread.fcr = IA32_FCR_DEFAULT;
- current->thread.fir = 0;
- current->thread.fdr = 0;
-
- /*
- * Setup GDTD. Note: GDTD is the descrambled version of the pseudo-descriptor
- * format defined by Figure 3-11 "Pseudo-Descriptor Format" in the IA-32
- * architecture manual. Also note that the only fields that are not ignored are
- * `base', `limit', 'G', `P' (must be 1) and `S' (must be 0).
- */
- regs->r31 = IA32_SEG_UNSCRAMBLE(IA32_SEG_DESCRIPTOR(IA32_GDT_OFFSET, IA32_PAGE_SIZE - 1,
- 0, 0, 0, 1, 0, 0, 0));
- /* Setup the segment selectors */
- regs->r16 = (__USER_DS << 16) | __USER_DS; /* ES == DS, GS, FS are zero */
- regs->r17 = (__USER_DS << 16) | __USER_CS; /* SS, CS; ia32_load_state() sets TSS and LDT */
-
- ia32_load_segment_descriptors(current);
- ia32_load_state(current);
-}
-
-/*
- * Undo the override of setup_arg_pages() without this ia32_setup_arg_pages()
- * will suffer infinite self recursion.
- */
-#undef setup_arg_pages
-
-int
-ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
-{
- int ret;
-
- ret = setup_arg_pages(bprm, IA32_STACK_TOP, executable_stack);
- if (!ret) {
- /*
- * Can't do it in ia64_elf32_init(). Needs to be done before
- * calls to elf32_map()
- */
- current->thread.ppl = ia32_init_pp_list();
- }
-
- return ret;
-}
-
-static void
-elf32_set_personality (void)
-{
- set_personality(PER_LINUX32);
- current->thread.map_base = IA32_PAGE_OFFSET/3;
-}
-
-static unsigned long
-elf32_map(struct file *filep, unsigned long addr, struct elf_phdr *eppnt,
- int prot, int type, unsigned long unused)
-{
- unsigned long pgoff = (eppnt->p_vaddr) & ~IA32_PAGE_MASK;
-
- return ia32_do_mmap(filep, (addr & IA32_PAGE_MASK), eppnt->p_filesz + pgoff, prot, type,
- eppnt->p_offset - pgoff);
-}
-
-#define cpu_uses_ia32el() (local_cpu_data->family > 0x1f)
-
-static int __init check_elf32_binfmt(void)
-{
- if (cpu_uses_ia32el()) {
- printk("Please use IA-32 EL for executing IA-32 binaries\n");
- unregister_binfmt(&elf_format);
- }
- return 0;
-}
-
-module_init(check_elf32_binfmt)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 12:46:46 +0000