x86: x86 ia32_binfmt removal
Remove the old ia32_binfmt.c file, which is no longer used. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Roland McGrath
Ingo Molnar
Родитель
a97f52e678
Коммит
a06b24e8bf
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@ -1,284 +0,0 @@
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/*
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* Written 2000,2002 by Andi Kleen.
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*
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* Loosely based on the sparc64 and IA64 32bit emulation loaders.
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* This tricks binfmt_elf.c into loading 32bit binaries using lots
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* of ugly preprocessor tricks. Talk about very very poor man's inheritance.
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*/
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#include <linux/types.h>
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#include <linux/stddef.h>
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#include <linux/rwsem.h>
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#include <linux/sched.h>
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#include <linux/compat.h>
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#include <linux/string.h>
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#include <linux/binfmts.h>
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#include <linux/mm.h>
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#include <linux/security.h>
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#include <linux/elfcore-compat.h>
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#include <asm/segment.h>
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#include <asm/ptrace.h>
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#include <asm/processor.h>
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#include <asm/user32.h>
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#include <asm/sigcontext32.h>
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#include <asm/fpu32.h>
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#include <asm/i387.h>
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#include <asm/uaccess.h>
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#include <asm/ia32.h>
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#include <asm/vdso.h>
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#undef ELF_ARCH
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#undef ELF_CLASS
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#define ELF_CLASS ELFCLASS32
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#define ELF_ARCH EM_386
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#undef elfhdr
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#undef elf_phdr
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#undef elf_note
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#undef elf_addr_t
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#define elfhdr elf32_hdr
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#define elf_phdr elf32_phdr
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#define elf_note elf32_note
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#define elf_addr_t Elf32_Off
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#define ELF_NAME "elf/i386"
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#define AT_SYSINFO 32
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#define AT_SYSINFO_EHDR 33
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extern int sysctl_vsyscall32;
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#undef ARCH_DLINFO
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#define ARCH_DLINFO do { \
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if (sysctl_vsyscall32) { \
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NEW_AUX_ENT(AT_SYSINFO, (u32)VDSO_ENTRY); \
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NEW_AUX_ENT(AT_SYSINFO_EHDR, (u32)VDSO_CURRENT_BASE); \
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} \
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} while(0)
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struct file;
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#define IA32_EMULATOR 1
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#undef ELF_ET_DYN_BASE
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#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
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#define jiffies_to_timeval(a,b) do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; }while(0)
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#define _GET_SEG(x) \
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({ __u32 seg; asm("movl %%" __stringify(x) ",%0" : "=r"(seg)); seg; })
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/* Assumes current==process to be dumped */
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#undef ELF_CORE_COPY_REGS
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#define ELF_CORE_COPY_REGS(pr_reg, regs) \
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pr_reg[0] = regs->bx; \
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pr_reg[1] = regs->cx; \
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pr_reg[2] = regs->dx; \
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pr_reg[3] = regs->si; \
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pr_reg[4] = regs->di; \
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pr_reg[5] = regs->bp; \
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pr_reg[6] = regs->ax; \
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pr_reg[7] = _GET_SEG(ds); \
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pr_reg[8] = _GET_SEG(es); \
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pr_reg[9] = _GET_SEG(fs); \
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pr_reg[10] = _GET_SEG(gs); \
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pr_reg[11] = regs->orig_ax; \
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pr_reg[12] = regs->ip; \
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pr_reg[13] = regs->cs; \
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pr_reg[14] = regs->flags; \
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pr_reg[15] = regs->sp; \
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pr_reg[16] = regs->ss;
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#define elf_prstatus compat_elf_prstatus
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#define elf_prpsinfo compat_elf_prpsinfo
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#define elf_fpregset_t struct user_i387_ia32_struct
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#define elf_fpxregset_t struct user32_fxsr_struct
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#define user user32
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#undef elf_read_implies_exec
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#define elf_read_implies_exec(ex, executable_stack) (executable_stack != EXSTACK_DISABLE_X)
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#define elf_core_copy_regs elf32_core_copy_regs
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static inline void elf32_core_copy_regs(compat_elf_gregset_t *elfregs,
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struct pt_regs *regs)
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{
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ELF_CORE_COPY_REGS((&elfregs->ebx), regs)
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}
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#define elf_core_copy_task_regs elf32_core_copy_task_regs
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static inline int elf32_core_copy_task_regs(struct task_struct *t,
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compat_elf_gregset_t* elfregs)
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{
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struct pt_regs *pp = task_pt_regs(t);
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ELF_CORE_COPY_REGS((&elfregs->ebx), pp);
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/* fix wrong segments */
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elfregs->ds = t->thread.ds;
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elfregs->fs = t->thread.fsindex;
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elfregs->gs = t->thread.gsindex;
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elfregs->es = t->thread.es;
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return 1;
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}
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#define elf_core_copy_task_fpregs elf32_core_copy_task_fpregs
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static inline int
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elf32_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs,
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elf_fpregset_t *fpu)
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{
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struct _fpstate_ia32 *fpstate = (void*)fpu;
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mm_segment_t oldfs = get_fs();
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if (!tsk_used_math(tsk))
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return 0;
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if (!regs)
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regs = task_pt_regs(tsk);
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if (tsk == current)
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unlazy_fpu(tsk);
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set_fs(KERNEL_DS);
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save_i387_ia32(tsk, fpstate, regs, 1);
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/* Correct for i386 bug. It puts the fop into the upper 16bits of
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the tag word (like FXSAVE), not into the fcs*/
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fpstate->cssel |= fpstate->tag & 0xffff0000;
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set_fs(oldfs);
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return 1;
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}
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#define ELF_CORE_COPY_XFPREGS 1
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#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
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#define elf_core_copy_task_xfpregs elf32_core_copy_task_xfpregs
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static inline int
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elf32_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
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{
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struct pt_regs *regs = task_pt_regs(t);
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if (!tsk_used_math(t))
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return 0;
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if (t == current)
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unlazy_fpu(t);
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memcpy(xfpu, &t->thread.i387.fxsave, sizeof(elf_fpxregset_t));
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xfpu->fcs = regs->cs;
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xfpu->fos = t->thread.ds; /* right? */
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return 1;
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}
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#undef elf_check_arch
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#define elf_check_arch(x) \
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((x)->e_machine == EM_386)
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extern int force_personality32;
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#undef ELF_EXEC_PAGESIZE
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#undef ELF_HWCAP
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#undef ELF_PLATFORM
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#undef SET_PERSONALITY
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#define ELF_EXEC_PAGESIZE PAGE_SIZE
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#define ELF_HWCAP (boot_cpu_data.x86_capability[0])
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#define ELF_PLATFORM ("i686")
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#define SET_PERSONALITY(ex, ibcs2) \
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do { \
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unsigned long new_flags = 0; \
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if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
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new_flags = _TIF_IA32; \
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if ((current_thread_info()->flags & _TIF_IA32) \
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!= new_flags) \
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set_thread_flag(TIF_ABI_PENDING); \
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else \
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clear_thread_flag(TIF_ABI_PENDING); \
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/* XXX This overwrites the user set personality */ \
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current->personality |= force_personality32; \
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} while (0)
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/* Override some function names */
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#define elf_format elf32_format
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#define init_elf_binfmt init_elf32_binfmt
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#define exit_elf_binfmt exit_elf32_binfmt
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#define load_elf_binary load_elf32_binary
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#undef ELF_PLAT_INIT
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#define ELF_PLAT_INIT(r, load_addr) elf32_init(r)
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#undef start_thread
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#define start_thread(regs,new_rip,new_rsp) do { \
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asm volatile("movl %0,%%fs" :: "r" (0)); \
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asm volatile("movl %0,%%es; movl %0,%%ds": :"r" (__USER32_DS)); \
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load_gs_index(0); \
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(regs)->ip = (new_rip); \
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(regs)->sp = (new_rsp); \
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(regs)->flags = X86_EFLAGS_IF; \
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(regs)->cs = __USER32_CS; \
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(regs)->ss = __USER32_DS; \
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set_fs(USER_DS); \
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} while(0)
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#include <linux/module.h>
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MODULE_DESCRIPTION("Binary format loader for compatibility with IA32 ELF binaries.");
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MODULE_AUTHOR("Eric Youngdale, Andi Kleen");
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#undef MODULE_DESCRIPTION
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#undef MODULE_AUTHOR
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static void elf32_init(struct pt_regs *);
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#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
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#define arch_setup_additional_pages syscall32_setup_pages
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extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
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#include "../../../fs/binfmt_elf.c"
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static void elf32_init(struct pt_regs *regs)
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{
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struct task_struct *me = current;
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regs->di = 0;
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regs->si = 0;
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regs->dx = 0;
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regs->cx = 0;
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regs->ax = 0;
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regs->bx = 0;
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regs->bp = 0;
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regs->r8 = regs->r9 = regs->r10 = regs->r11 = regs->r12 =
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regs->r13 = regs->r14 = regs->r15 = 0;
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me->thread.fs = 0;
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me->thread.gs = 0;
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me->thread.fsindex = 0;
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me->thread.gsindex = 0;
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me->thread.ds = __USER_DS;
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me->thread.es = __USER_DS;
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}
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#ifdef CONFIG_SYSCTL
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/* Register vsyscall32 into the ABI table */
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#include <linux/sysctl.h>
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static ctl_table abi_table2[] = {
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{
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.procname = "vsyscall32",
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.data = &sysctl_vsyscall32,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec
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},
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{}
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};
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static ctl_table abi_root_table2[] = {
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{
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.ctl_name = CTL_ABI,
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.procname = "abi",
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.mode = 0555,
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.child = abi_table2
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},
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{}
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};
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static __init int ia32_binfmt_init(void)
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{
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register_sysctl_table(abi_root_table2);
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return 0;
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}
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__initcall(ia32_binfmt_init);
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#endif
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