diff options
Diffstat (limited to 'arch/um/sys-x86_64')
47 files changed, 0 insertions, 2781 deletions
diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile deleted file mode 100644 index bd4d1d3..0000000 --- a/arch/um/sys-x86_64/Makefile +++ /dev/null @@ -1,27 +0,0 @@ -# -# Copyright 2003 PathScale, Inc. -# -# Licensed under the GPL -# - -obj-y = bug.o bugs.o delay.o fault.o ldt.o ptrace.o ptrace_user.o mem.o \ - setjmp.o signal.o stub.o stub_segv.o syscalls.o syscall_table.o \ - sysrq.o ksyms.o tls.o - -obj-y += vdso/ - -subarch-obj-y = lib/csum-partial_64.o lib/memcpy_64.o lib/thunk_64.o \ - lib/rwsem.o -subarch-obj-$(CONFIG_MODULES) += kernel/module.o - -ldt-y = ../sys-i386/ldt.o - -USER_OBJS := ptrace_user.o - -USER_OBJS += user-offsets.s -extra-y += user-offsets.s - -UNPROFILE_OBJS := stub_segv.o -CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING) - -include arch/um/scripts/Makefile.rules diff --git a/arch/um/sys-x86_64/asm/archparam.h b/arch/um/sys-x86_64/asm/archparam.h deleted file mode 100644 index 6c08366..0000000 --- a/arch/um/sys-x86_64/asm/archparam.h +++ /dev/null @@ -1,16 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#ifndef __UM_ARCHPARAM_X86_64_H -#define __UM_ARCHPARAM_X86_64_H - - -/* No user-accessible fixmap addresses, i.e. vsyscall */ -#define FIXADDR_USER_START 0 -#define FIXADDR_USER_END 0 - -#endif - diff --git a/arch/um/sys-x86_64/asm/elf.h b/arch/um/sys-x86_64/asm/elf.h deleted file mode 100644 index 11a2bfb..0000000 --- a/arch/um/sys-x86_64/asm/elf.h +++ /dev/null @@ -1,132 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - * - * Licensed under the GPL - */ -#ifndef __UM_ELF_X86_64_H -#define __UM_ELF_X86_64_H - -#include <asm/user.h> -#include "skas.h" - -/* x86-64 relocation types, taken from asm-x86_64/elf.h */ -#define R_X86_64_NONE 0 /* No reloc */ -#define R_X86_64_64 1 /* Direct 64 bit */ -#define R_X86_64_PC32 2 /* PC relative 32 bit signed */ -#define R_X86_64_GOT32 3 /* 32 bit GOT entry */ -#define R_X86_64_PLT32 4 /* 32 bit PLT address */ -#define R_X86_64_COPY 5 /* Copy symbol at runtime */ -#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */ -#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */ -#define R_X86_64_RELATIVE 8 /* Adjust by program base */ -#define R_X86_64_GOTPCREL 9 /* 32 bit signed pc relative - offset to GOT */ -#define R_X86_64_32 10 /* Direct 32 bit zero extended */ -#define R_X86_64_32S 11 /* Direct 32 bit sign extended */ -#define R_X86_64_16 12 /* Direct 16 bit zero extended */ -#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */ -#define R_X86_64_8 14 /* Direct 8 bit sign extended */ -#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */ - -#define R_X86_64_NUM 16 - -typedef unsigned long elf_greg_t; - -#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t)) -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -typedef struct user_i387_struct elf_fpregset_t; - -/* - * This is used to ensure we don't load something for the wrong architecture. - */ -#define elf_check_arch(x) \ - ((x)->e_machine == EM_X86_64) - -#define ELF_CLASS ELFCLASS64 -#define ELF_DATA ELFDATA2LSB -#define ELF_ARCH EM_X86_64 - -#define ELF_PLAT_INIT(regs, load_addr) do { \ - PT_REGS_RBX(regs) = 0; \ - PT_REGS_RCX(regs) = 0; \ - PT_REGS_RDX(regs) = 0; \ - PT_REGS_RSI(regs) = 0; \ - PT_REGS_RDI(regs) = 0; \ - PT_REGS_RBP(regs) = 0; \ - PT_REGS_RAX(regs) = 0; \ - PT_REGS_R8(regs) = 0; \ - PT_REGS_R9(regs) = 0; \ - PT_REGS_R10(regs) = 0; \ - PT_REGS_R11(regs) = 0; \ - PT_REGS_R12(regs) = 0; \ - PT_REGS_R13(regs) = 0; \ - PT_REGS_R14(regs) = 0; \ - PT_REGS_R15(regs) = 0; \ -} while (0) - -#define ELF_CORE_COPY_REGS(pr_reg, _regs) \ - (pr_reg)[0] = (_regs)->regs.gp[0]; \ - (pr_reg)[1] = (_regs)->regs.gp[1]; \ - (pr_reg)[2] = (_regs)->regs.gp[2]; \ - (pr_reg)[3] = (_regs)->regs.gp[3]; \ - (pr_reg)[4] = (_regs)->regs.gp[4]; \ - (pr_reg)[5] = (_regs)->regs.gp[5]; \ - (pr_reg)[6] = (_regs)->regs.gp[6]; \ - (pr_reg)[7] = (_regs)->regs.gp[7]; \ - (pr_reg)[8] = (_regs)->regs.gp[8]; \ - (pr_reg)[9] = (_regs)->regs.gp[9]; \ - (pr_reg)[10] = (_regs)->regs.gp[10]; \ - (pr_reg)[11] = (_regs)->regs.gp[11]; \ - (pr_reg)[12] = (_regs)->regs.gp[12]; \ - (pr_reg)[13] = (_regs)->regs.gp[13]; \ - (pr_reg)[14] = (_regs)->regs.gp[14]; \ - (pr_reg)[15] = (_regs)->regs.gp[15]; \ - (pr_reg)[16] = (_regs)->regs.gp[16]; \ - (pr_reg)[17] = (_regs)->regs.gp[17]; \ - (pr_reg)[18] = (_regs)->regs.gp[18]; \ - (pr_reg)[19] = (_regs)->regs.gp[19]; \ - (pr_reg)[20] = (_regs)->regs.gp[20]; \ - (pr_reg)[21] = current->thread.arch.fs; \ - (pr_reg)[22] = 0; \ - (pr_reg)[23] = 0; \ - (pr_reg)[24] = 0; \ - (pr_reg)[25] = 0; \ - (pr_reg)[26] = 0; - -#define task_pt_regs(t) (&(t)->thread.regs) - -struct task_struct; - -extern int elf_core_copy_fpregs(struct task_struct *t, elf_fpregset_t *fpu); - -#define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu) - -#ifdef TIF_IA32 /* XXX */ -#error XXX, indeed - clear_thread_flag(TIF_IA32); -#endif - -#define ELF_EXEC_PAGESIZE 4096 - -#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) - -extern long elf_aux_hwcap; -#define ELF_HWCAP (elf_aux_hwcap) - -#define ELF_PLATFORM "x86_64" - -#define SET_PERSONALITY(ex) do ; while(0) - -#define __HAVE_ARCH_GATE_AREA 1 -#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 -struct linux_binprm; -extern int arch_setup_additional_pages(struct linux_binprm *bprm, - int uses_interp); - -extern unsigned long um_vdso_addr; -#define AT_SYSINFO_EHDR 33 -#define ARCH_DLINFO NEW_AUX_ENT(AT_SYSINFO_EHDR, um_vdso_addr) - -#endif diff --git a/arch/um/sys-x86_64/asm/module.h b/arch/um/sys-x86_64/asm/module.h deleted file mode 100644 index 8eb79c2..0000000 --- a/arch/um/sys-x86_64/asm/module.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#ifndef __UM_MODULE_X86_64_H -#define __UM_MODULE_X86_64_H - -/* UML is simple */ -struct mod_arch_specific -{ -}; - -#define Elf_Shdr Elf64_Shdr -#define Elf_Sym Elf64_Sym -#define Elf_Ehdr Elf64_Ehdr - -#endif - diff --git a/arch/um/sys-x86_64/asm/processor.h b/arch/um/sys-x86_64/asm/processor.h deleted file mode 100644 index 875a26a..0000000 --- a/arch/um/sys-x86_64/asm/processor.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#ifndef __UM_PROCESSOR_X86_64_H -#define __UM_PROCESSOR_X86_64_H - -/* include faultinfo structure */ -#include "sysdep/faultinfo.h" - -struct arch_thread { - unsigned long debugregs[8]; - int debugregs_seq; - unsigned long fs; - struct faultinfo faultinfo; -}; - -/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ -static inline void rep_nop(void) -{ - __asm__ __volatile__("rep;nop": : :"memory"); -} - -#define cpu_relax() rep_nop() - -#define INIT_ARCH_THREAD { .debugregs = { [ 0 ... 7 ] = 0 }, \ - .debugregs_seq = 0, \ - .fs = 0, \ - .faultinfo = { 0, 0, 0 } } - -static inline void arch_flush_thread(struct arch_thread *thread) -{ -} - -static inline void arch_copy_thread(struct arch_thread *from, - struct arch_thread *to) -{ - to->fs = from->fs; -} - -#include <asm/user.h> - -#define current_text_addr() \ - ({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; }) - -#define ARCH_IS_STACKGROW(address) \ - (address + 128 >= UPT_SP(¤t->thread.regs.regs)) - -#define KSTK_EIP(tsk) KSTK_REG(tsk, RIP) -#define KSTK_ESP(tsk) KSTK_REG(tsk, RSP) - -#include "asm/processor-generic.h" - -#endif diff --git a/arch/um/sys-x86_64/asm/ptrace.h b/arch/um/sys-x86_64/asm/ptrace.h deleted file mode 100644 index 83d8c47..0000000 --- a/arch/um/sys-x86_64/asm/ptrace.h +++ /dev/null @@ -1,72 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#ifndef __UM_PTRACE_X86_64_H -#define __UM_PTRACE_X86_64_H - -#include "linux/compiler.h" -#include "asm/errno.h" - -#define __FRAME_OFFSETS /* Needed to get the R* macros */ -#include "asm/ptrace-generic.h" - -#define HOST_AUDIT_ARCH AUDIT_ARCH_X86_64 - -#define PT_REGS_RBX(r) UPT_RBX(&(r)->regs) -#define PT_REGS_RCX(r) UPT_RCX(&(r)->regs) -#define PT_REGS_RDX(r) UPT_RDX(&(r)->regs) -#define PT_REGS_RSI(r) UPT_RSI(&(r)->regs) -#define PT_REGS_RDI(r) UPT_RDI(&(r)->regs) -#define PT_REGS_RBP(r) UPT_RBP(&(r)->regs) -#define PT_REGS_RAX(r) UPT_RAX(&(r)->regs) -#define PT_REGS_R8(r) UPT_R8(&(r)->regs) -#define PT_REGS_R9(r) UPT_R9(&(r)->regs) -#define PT_REGS_R10(r) UPT_R10(&(r)->regs) -#define PT_REGS_R11(r) UPT_R11(&(r)->regs) -#define PT_REGS_R12(r) UPT_R12(&(r)->regs) -#define PT_REGS_R13(r) UPT_R13(&(r)->regs) -#define PT_REGS_R14(r) UPT_R14(&(r)->regs) -#define PT_REGS_R15(r) UPT_R15(&(r)->regs) - -#define PT_REGS_FS(r) UPT_FS(&(r)->regs) -#define PT_REGS_GS(r) UPT_GS(&(r)->regs) -#define PT_REGS_DS(r) UPT_DS(&(r)->regs) -#define PT_REGS_ES(r) UPT_ES(&(r)->regs) -#define PT_REGS_SS(r) UPT_SS(&(r)->regs) -#define PT_REGS_CS(r) UPT_CS(&(r)->regs) - -#define PT_REGS_ORIG_RAX(r) UPT_ORIG_RAX(&(r)->regs) -#define PT_REGS_RIP(r) UPT_IP(&(r)->regs) -#define PT_REGS_RSP(r) UPT_SP(&(r)->regs) - -#define PT_REGS_EFLAGS(r) UPT_EFLAGS(&(r)->regs) - -/* XXX */ -#define user_mode(r) UPT_IS_USER(&(r)->regs) -#define PT_REGS_ORIG_SYSCALL(r) PT_REGS_RAX(r) -#define PT_REGS_SYSCALL_RET(r) PT_REGS_RAX(r) - -#define PT_FIX_EXEC_STACK(sp) do ; while(0) - -#define profile_pc(regs) PT_REGS_IP(regs) - -struct user_desc; - -static inline int ptrace_get_thread_area(struct task_struct *child, int idx, - struct user_desc __user *user_desc) -{ - return -ENOSYS; -} - -static inline int ptrace_set_thread_area(struct task_struct *child, int idx, - struct user_desc __user *user_desc) -{ - return -ENOSYS; -} - -extern long arch_prctl(struct task_struct *task, int code, - unsigned long __user *addr); -#endif diff --git a/arch/um/sys-x86_64/bug.c b/arch/um/sys-x86_64/bug.c deleted file mode 100644 index e8034e3..0000000 --- a/arch/um/sys-x86_64/bug.c +++ /dev/null @@ -1,21 +0,0 @@ -/* - * Copyright (C) 2006 Jeff Dike (jdike@addtoit.com) - * Licensed under the GPL V2 - */ - -#include <linux/uaccess.h> - -/* - * Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because - * that's not relevant in skas mode. - */ - -int is_valid_bugaddr(unsigned long eip) -{ - unsigned short ud2; - - if (probe_kernel_address((unsigned short __user *)eip, ud2)) - return 0; - - return ud2 == 0x0b0f; -} diff --git a/arch/um/sys-x86_64/bugs.c b/arch/um/sys-x86_64/bugs.c deleted file mode 100644 index 44e02ba..0000000 --- a/arch/um/sys-x86_64/bugs.c +++ /dev/null @@ -1,15 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#include "sysdep/ptrace.h" - -void arch_check_bugs(void) -{ -} - -void arch_examine_signal(int sig, struct uml_pt_regs *regs) -{ -} diff --git a/arch/um/sys-x86_64/delay.c b/arch/um/sys-x86_64/delay.c deleted file mode 100644 index f3fe1a6..0000000 --- a/arch/um/sys-x86_64/delay.c +++ /dev/null @@ -1,60 +0,0 @@ -/* - * Copyright (C) 2011 Richard Weinberger <richrd@nod.at> - * Mostly copied from arch/x86/lib/delay.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <asm/param.h> - -void __delay(unsigned long loops) -{ - asm volatile( - "test %0,%0\n" - "jz 3f\n" - "jmp 1f\n" - - ".align 16\n" - "1: jmp 2f\n" - - ".align 16\n" - "2: dec %0\n" - " jnz 2b\n" - "3: dec %0\n" - - : /* we don't need output */ - : "a" (loops) - ); -} -EXPORT_SYMBOL(__delay); - -inline void __const_udelay(unsigned long xloops) -{ - int d0; - - xloops *= 4; - asm("mull %%edx" - : "=d" (xloops), "=&a" (d0) - : "1" (xloops), "0" - (loops_per_jiffy * (HZ/4))); - - __delay(++xloops); -} -EXPORT_SYMBOL(__const_udelay); - -void __udelay(unsigned long usecs) -{ - __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */ -} -EXPORT_SYMBOL(__udelay); - -void __ndelay(unsigned long nsecs) -{ - __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */ -} -EXPORT_SYMBOL(__ndelay); diff --git a/arch/um/sys-x86_64/fault.c b/arch/um/sys-x86_64/fault.c deleted file mode 100644 index ce85117..0000000 --- a/arch/um/sys-x86_64/fault.c +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#include "sysdep/ptrace.h" - -/* These two are from asm-um/uaccess.h and linux/module.h, check them. */ -struct exception_table_entry -{ - unsigned long insn; - unsigned long fixup; -}; - -const struct exception_table_entry *search_exception_tables(unsigned long add); - -int arch_fixup(unsigned long address, struct uml_pt_regs *regs) -{ - const struct exception_table_entry *fixup; - - fixup = search_exception_tables(address); - if (fixup != 0) { - UPT_IP(regs) = fixup->fixup; - return 1; - } - return 0; -} diff --git a/arch/um/sys-x86_64/ksyms.c b/arch/um/sys-x86_64/ksyms.c deleted file mode 100644 index 1db2fce..0000000 --- a/arch/um/sys-x86_64/ksyms.c +++ /dev/null @@ -1,11 +0,0 @@ -#include <linux/module.h> -#include <asm/string.h> -#include <asm/checksum.h> - -/*XXX: we need them because they would be exported by x86_64 */ -#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4 -EXPORT_SYMBOL(memcpy); -#else -EXPORT_SYMBOL(__memcpy); -#endif -EXPORT_SYMBOL(csum_partial); diff --git a/arch/um/sys-x86_64/mem.c b/arch/um/sys-x86_64/mem.c deleted file mode 100644 index 5465187..0000000 --- a/arch/um/sys-x86_64/mem.c +++ /dev/null @@ -1,26 +0,0 @@ -#include "linux/mm.h" -#include "asm/page.h" -#include "asm/mman.h" - -const char *arch_vma_name(struct vm_area_struct *vma) -{ - if (vma->vm_mm && vma->vm_start == um_vdso_addr) - return "[vdso]"; - - return NULL; -} - -struct vm_area_struct *get_gate_vma(struct mm_struct *mm) -{ - return NULL; -} - -int in_gate_area(struct mm_struct *mm, unsigned long addr) -{ - return 0; -} - -int in_gate_area_no_mm(unsigned long addr) -{ - return 0; -} diff --git a/arch/um/sys-x86_64/ptrace.c b/arch/um/sys-x86_64/ptrace.c deleted file mode 100644 index 4005506..0000000 --- a/arch/um/sys-x86_64/ptrace.c +++ /dev/null @@ -1,198 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - * - * Licensed under the GPL - */ - -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/errno.h> -#define __FRAME_OFFSETS -#include <asm/ptrace.h> -#include <asm/uaccess.h> - -/* - * determines which flags the user has access to. - * 1 = access 0 = no access - */ -#define FLAG_MASK 0x44dd5UL - -int putreg(struct task_struct *child, int regno, unsigned long value) -{ - unsigned long tmp; - -#ifdef TIF_IA32 - /* - * Some code in the 64bit emulation may not be 64bit clean. - * Don't take any chances. - */ - if (test_tsk_thread_flag(child, TIF_IA32)) - value &= 0xffffffff; -#endif - switch (regno) { - case FS: - case GS: - case DS: - case ES: - case SS: - case CS: - if (value && (value & 3) != 3) - return -EIO; - value &= 0xffff; - break; - - case FS_BASE: - case GS_BASE: - if (!((value >> 48) == 0 || (value >> 48) == 0xffff)) - return -EIO; - break; - - case EFLAGS: - value &= FLAG_MASK; - tmp = PT_REGS_EFLAGS(&child->thread.regs) & ~FLAG_MASK; - value |= tmp; - break; - } - - PT_REGS_SET(&child->thread.regs, regno, value); - return 0; -} - -int poke_user(struct task_struct *child, long addr, long data) -{ - if ((addr & 3) || addr < 0) - return -EIO; - - if (addr < MAX_REG_OFFSET) - return putreg(child, addr, data); - else if ((addr >= offsetof(struct user, u_debugreg[0])) && - (addr <= offsetof(struct user, u_debugreg[7]))) { - addr -= offsetof(struct user, u_debugreg[0]); - addr = addr >> 2; - if ((addr == 4) || (addr == 5)) - return -EIO; - child->thread.arch.debugregs[addr] = data; - return 0; - } - return -EIO; -} - -unsigned long getreg(struct task_struct *child, int regno) -{ - unsigned long retval = ~0UL; - switch (regno) { - case FS: - case GS: - case DS: - case ES: - case SS: - case CS: - retval = 0xffff; - /* fall through */ - default: - retval &= PT_REG(&child->thread.regs, regno); -#ifdef TIF_IA32 - if (test_tsk_thread_flag(child, TIF_IA32)) - retval &= 0xffffffff; -#endif - } - return retval; -} - -int peek_user(struct task_struct *child, long addr, long data) -{ - /* read the word at location addr in the USER area. */ - unsigned long tmp; - - if ((addr & 3) || addr < 0) - return -EIO; - - tmp = 0; /* Default return condition */ - if (addr < MAX_REG_OFFSET) - tmp = getreg(child, addr); - else if ((addr >= offsetof(struct user, u_debugreg[0])) && - (addr <= offsetof(struct user, u_debugreg[7]))) { - addr -= offsetof(struct user, u_debugreg[0]); - addr = addr >> 2; - tmp = child->thread.arch.debugregs[addr]; - } - return put_user(tmp, (unsigned long *) data); -} - -/* XXX Mostly copied from sys-i386 */ -int is_syscall(unsigned long addr) -{ - unsigned short instr; - int n; - - n = copy_from_user(&instr, (void __user *) addr, sizeof(instr)); - if (n) { - /* - * access_process_vm() grants access to vsyscall and stub, - * while copy_from_user doesn't. Maybe access_process_vm is - * slow, but that doesn't matter, since it will be called only - * in case of singlestepping, if copy_from_user failed. - */ - n = access_process_vm(current, addr, &instr, sizeof(instr), 0); - if (n != sizeof(instr)) { - printk("is_syscall : failed to read instruction from " - "0x%lx\n", addr); - return 1; - } - } - /* sysenter */ - return instr == 0x050f; -} - -static int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *child) -{ - int err, n, cpu = ((struct thread_info *) child->stack)->cpu; - long fpregs[HOST_FP_SIZE]; - - BUG_ON(sizeof(*buf) != sizeof(fpregs)); - err = save_fp_registers(userspace_pid[cpu], fpregs); - if (err) - return err; - - n = copy_to_user(buf, fpregs, sizeof(fpregs)); - if (n > 0) - return -EFAULT; - - return n; -} - -static int set_fpregs(struct user_i387_struct __user *buf, struct task_struct *child) -{ - int n, cpu = ((struct thread_info *) child->stack)->cpu; - long fpregs[HOST_FP_SIZE]; - - BUG_ON(sizeof(*buf) != sizeof(fpregs)); - n = copy_from_user(fpregs, buf, sizeof(fpregs)); - if (n > 0) - return -EFAULT; - - return restore_fp_registers(userspace_pid[cpu], fpregs); -} - -long subarch_ptrace(struct task_struct *child, long request, - unsigned long addr, unsigned long data) -{ - int ret = -EIO; - void __user *datap = (void __user *) data; - - switch (request) { - case PTRACE_GETFPREGS: /* Get the child FPU state. */ - ret = get_fpregs(datap, child); - break; - case PTRACE_SETFPREGS: /* Set the child FPU state. */ - ret = set_fpregs(datap, child); - break; - case PTRACE_ARCH_PRCTL: - /* XXX Calls ptrace on the host - needs some SMP thinking */ - ret = arch_prctl(child, data, (void __user *) addr); - break; - } - - return ret; -} diff --git a/arch/um/sys-x86_64/ptrace_user.c b/arch/um/sys-x86_64/ptrace_user.c deleted file mode 100644 index c57a496..0000000 --- a/arch/um/sys-x86_64/ptrace_user.c +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#include <errno.h> -#include "ptrace_user.h" - -int ptrace_getregs(long pid, unsigned long *regs_out) -{ - if (ptrace(PTRACE_GETREGS, pid, 0, regs_out) < 0) - return -errno; - return(0); -} - -int ptrace_setregs(long pid, unsigned long *regs_out) -{ - if (ptrace(PTRACE_SETREGS, pid, 0, regs_out) < 0) - return -errno; - return(0); -} diff --git a/arch/um/sys-x86_64/setjmp.S b/arch/um/sys-x86_64/setjmp.S deleted file mode 100644 index 45f547b..0000000 --- a/arch/um/sys-x86_64/setjmp.S +++ /dev/null @@ -1,54 +0,0 @@ -# -# arch/x86_64/setjmp.S -# -# setjmp/longjmp for the x86-64 architecture -# - -# -# The jmp_buf is assumed to contain the following, in order: -# %rbx -# %rsp (post-return) -# %rbp -# %r12 -# %r13 -# %r14 -# %r15 -# <return address> -# - - .text - .align 4 - .globl setjmp - .type setjmp, @function -setjmp: - pop %rsi # Return address, and adjust the stack - xorl %eax,%eax # Return value - movq %rbx,(%rdi) - movq %rsp,8(%rdi) # Post-return %rsp! - push %rsi # Make the call/return stack happy - movq %rbp,16(%rdi) - movq %r12,24(%rdi) - movq %r13,32(%rdi) - movq %r14,40(%rdi) - movq %r15,48(%rdi) - movq %rsi,56(%rdi) # Return address - ret - - .size setjmp,.-setjmp - - .text - .align 4 - .globl longjmp - .type longjmp, @function -longjmp: - movl %esi,%eax # Return value (int) - movq (%rdi),%rbx - movq 8(%rdi),%rsp - movq 16(%rdi),%rbp - movq 24(%rdi),%r12 - movq 32(%rdi),%r13 - movq 40(%rdi),%r14 - movq 48(%rdi),%r15 - jmp *56(%rdi) - - .size longjmp,.-longjmp diff --git a/arch/um/sys-x86_64/shared/sysdep/archsetjmp.h b/arch/um/sys-x86_64/shared/sysdep/archsetjmp.h deleted file mode 100644 index 2af8f12..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/archsetjmp.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * arch/um/include/sysdep-x86_64/archsetjmp.h - */ - -#ifndef _KLIBC_ARCHSETJMP_H -#define _KLIBC_ARCHSETJMP_H - -struct __jmp_buf { - unsigned long __rbx; - unsigned long __rsp; - unsigned long __rbp; - unsigned long __r12; - unsigned long __r13; - unsigned long __r14; - unsigned long __r15; - unsigned long __rip; -}; - -typedef struct __jmp_buf jmp_buf[1]; - -#define JB_IP __rip -#define JB_SP __rsp - -#endif /* _SETJMP_H */ diff --git a/arch/um/sys-x86_64/shared/sysdep/barrier.h b/arch/um/sys-x86_64/shared/sysdep/barrier.h deleted file mode 100644 index 7b610be..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/barrier.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef __SYSDEP_X86_64_BARRIER_H -#define __SYSDEP_X86_64_BARRIER_H - -/* Copied from include/asm-x86_64 for use by userspace. */ -#define mb() asm volatile("mfence":::"memory") - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/checksum.h b/arch/um/sys-x86_64/shared/sysdep/checksum.h deleted file mode 100644 index a5be903..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/checksum.h +++ /dev/null @@ -1,144 +0,0 @@ -/* - * Licensed under the GPL - */ - -#ifndef __UM_SYSDEP_CHECKSUM_H -#define __UM_SYSDEP_CHECKSUM_H - -#include "linux/string.h" -#include "linux/in6.h" -#include "asm/uaccess.h" - -extern __wsum csum_partial(const void *buff, int len, __wsum sum); - -/* - * Note: when you get a NULL pointer exception here this means someone - * passed in an incorrect kernel address to one of these functions. - * - * If you use these functions directly please don't forget the - * access_ok(). - */ - -static __inline__ -__wsum csum_partial_copy_nocheck(const void *src, void *dst, - int len, __wsum sum) -{ - memcpy(dst, src, len); - return(csum_partial(dst, len, sum)); -} - -static __inline__ -__wsum csum_partial_copy_from_user(const void __user *src, - void *dst, int len, __wsum sum, - int *err_ptr) -{ - if (copy_from_user(dst, src, len)) { - *err_ptr = -EFAULT; - return (__force __wsum)-1; - } - return csum_partial(dst, len, sum); -} - -/** - * csum_fold - Fold and invert a 32bit checksum. - * sum: 32bit unfolded sum - * - * Fold a 32bit running checksum to 16bit and invert it. This is usually - * the last step before putting a checksum into a packet. - * Make sure not to mix with 64bit checksums. - */ -static inline __sum16 csum_fold(__wsum sum) -{ - __asm__( - " addl %1,%0\n" - " adcl $0xffff,%0" - : "=r" (sum) - : "r" ((__force u32)sum << 16), - "0" ((__force u32)sum & 0xffff0000) - ); - return (__force __sum16)(~(__force u32)sum >> 16); -} - -/** - * csum_tcpup_nofold - Compute an IPv4 pseudo header checksum. - * @saddr: source address - * @daddr: destination address - * @len: length of packet - * @proto: ip protocol of packet - * @sum: initial sum to be added in (32bit unfolded) - * - * Returns the pseudo header checksum the input data. Result is - * 32bit unfolded. - */ -static inline __wsum -csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, - unsigned short proto, __wsum sum) -{ - asm(" addl %1, %0\n" - " adcl %2, %0\n" - " adcl %3, %0\n" - " adcl $0, %0\n" - : "=r" (sum) - : "g" (daddr), "g" (saddr), "g" ((len + proto) << 8), "0" (sum)); - return sum; -} - -/* - * computes the checksum of the TCP/UDP pseudo-header - * returns a 16-bit checksum, already complemented - */ -static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) -{ - return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); -} - -/** - * ip_fast_csum - Compute the IPv4 header checksum efficiently. - * iph: ipv4 header - * ihl: length of header / 4 - */ -static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl) -{ - unsigned int sum; - - asm( " movl (%1), %0\n" - " subl $4, %2\n" - " jbe 2f\n" - " addl 4(%1), %0\n" - " adcl 8(%1), %0\n" - " adcl 12(%1), %0\n" - "1: adcl 16(%1), %0\n" - " lea 4(%1), %1\n" - " decl %2\n" - " jne 1b\n" - " adcl $0, %0\n" - " movl %0, %2\n" - " shrl $16, %0\n" - " addw %w2, %w0\n" - " adcl $0, %0\n" - " notl %0\n" - "2:" - /* Since the input registers which are loaded with iph and ipl - are modified, we must also specify them as outputs, or gcc - will assume they contain their original values. */ - : "=r" (sum), "=r" (iph), "=r" (ihl) - : "1" (iph), "2" (ihl) - : "memory"); - return (__force __sum16)sum; -} - -static inline unsigned add32_with_carry(unsigned a, unsigned b) -{ - asm("addl %2,%0\n\t" - "adcl $0,%0" - : "=r" (a) - : "0" (a), "r" (b)); - return a; -} - -extern __sum16 ip_compute_csum(const void *buff, int len); - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/faultinfo.h b/arch/um/sys-x86_64/shared/sysdep/faultinfo.h deleted file mode 100644 index cb917b0..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/faultinfo.h +++ /dev/null @@ -1,29 +0,0 @@ -/* - * Copyright (C) 2004 Fujitsu Siemens Computers GmbH - * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com> - * Licensed under the GPL - */ - -#ifndef __FAULTINFO_X86_64_H -#define __FAULTINFO_X86_64_H - -/* this structure contains the full arch-specific faultinfo - * from the traps. - * On i386, ptrace_faultinfo unfortunately doesn't provide - * all the info, since trap_no is missing. - * All common elements are defined at the same position in - * both structures, thus making it easy to copy the - * contents without knowledge about the structure elements. - */ -struct faultinfo { - int error_code; /* in ptrace_faultinfo misleadingly called is_write */ - unsigned long cr2; /* in ptrace_faultinfo called addr */ - int trap_no; /* missing in ptrace_faultinfo */ -}; - -#define FAULT_WRITE(fi) ((fi).error_code & 2) -#define FAULT_ADDRESS(fi) ((fi).cr2) - -#define PTRACE_FULL_FAULTINFO 1 - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/host_ldt.h b/arch/um/sys-x86_64/shared/sysdep/host_ldt.h deleted file mode 100644 index e8b1be1..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/host_ldt.h +++ /dev/null @@ -1,38 +0,0 @@ -#ifndef __ASM_HOST_LDT_X86_64_H -#define __ASM_HOST_LDT_X86_64_H - -#include <asm/ldt.h> - -/* - * macros stolen from include/asm-x86_64/desc.h - */ -#define LDT_entry_a(info) \ - ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff)) - -/* Don't allow setting of the lm bit. It is useless anyways because - * 64bit system calls require __USER_CS. */ -#define LDT_entry_b(info) \ - (((info)->base_addr & 0xff000000) | \ - (((info)->base_addr & 0x00ff0000) >> 16) | \ - ((info)->limit & 0xf0000) | \ - (((info)->read_exec_only ^ 1) << 9) | \ - ((info)->contents << 10) | \ - (((info)->seg_not_present ^ 1) << 15) | \ - ((info)->seg_32bit << 22) | \ - ((info)->limit_in_pages << 23) | \ - ((info)->useable << 20) | \ - /* ((info)->lm << 21) | */ \ - 0x7000) - -#define LDT_empty(info) (\ - (info)->base_addr == 0 && \ - (info)->limit == 0 && \ - (info)->contents == 0 && \ - (info)->read_exec_only == 1 && \ - (info)->seg_32bit == 0 && \ - (info)->limit_in_pages == 0 && \ - (info)->seg_not_present == 1 && \ - (info)->useable == 0 && \ - (info)->lm == 0) - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/kernel-offsets.h b/arch/um/sys-x86_64/shared/sysdep/kernel-offsets.h deleted file mode 100644 index a307237..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/kernel-offsets.h +++ /dev/null @@ -1,23 +0,0 @@ -#include <linux/stddef.h> -#include <linux/sched.h> -#include <linux/time.h> -#include <linux/elf.h> -#include <linux/crypto.h> -#include <asm/page.h> -#include <asm/mman.h> - -#define DEFINE(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val)) - -#define DEFINE_STR1(x) #x -#define DEFINE_STR(sym, val) asm volatile("\n->" #sym " " DEFINE_STR1(val) " " #val: : ) - -#define BLANK() asm volatile("\n->" : : ) - -#define OFFSET(sym, str, mem) \ - DEFINE(sym, offsetof(struct str, mem)); - -void foo(void) -{ -#include <common-offsets.h> -} diff --git a/arch/um/sys-x86_64/shared/sysdep/ptrace.h b/arch/um/sys-x86_64/shared/sysdep/ptrace.h deleted file mode 100644 index 8ee8f8e..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/ptrace.h +++ /dev/null @@ -1,240 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - * - * Licensed under the GPL - */ - -#ifndef __SYSDEP_X86_64_PTRACE_H -#define __SYSDEP_X86_64_PTRACE_H - -#include "user_constants.h" -#include "sysdep/faultinfo.h" - -#define MAX_REG_OFFSET (UM_FRAME_SIZE) -#define MAX_REG_NR ((MAX_REG_OFFSET) / sizeof(unsigned long)) - -#include "skas_ptregs.h" - -#define REGS_IP(r) ((r)[HOST_IP]) -#define REGS_SP(r) ((r)[HOST_SP]) - -#define REGS_RBX(r) ((r)[HOST_RBX]) -#define REGS_RCX(r) ((r)[HOST_RCX]) -#define REGS_RDX(r) ((r)[HOST_RDX]) -#define REGS_RSI(r) ((r)[HOST_RSI]) -#define REGS_RDI(r) ((r)[HOST_RDI]) -#define REGS_RBP(r) ((r)[HOST_RBP]) -#define REGS_RAX(r) ((r)[HOST_RAX]) -#define REGS_R8(r) ((r)[HOST_R8]) -#define REGS_R9(r) ((r)[HOST_R9]) -#define REGS_R10(r) ((r)[HOST_R10]) -#define REGS_R11(r) ((r)[HOST_R11]) -#define REGS_R12(r) ((r)[HOST_R12]) -#define REGS_R13(r) ((r)[HOST_R13]) -#define REGS_R14(r) ((r)[HOST_R14]) -#define REGS_R15(r) ((r)[HOST_R15]) -#define REGS_CS(r) ((r)[HOST_CS]) -#define REGS_EFLAGS(r) ((r)[HOST_EFLAGS]) -#define REGS_SS(r) ((r)[HOST_SS]) - -#define HOST_FS_BASE 21 -#define HOST_GS_BASE 22 -#define HOST_DS 23 -#define HOST_ES 24 -#define HOST_FS 25 -#define HOST_GS 26 - -/* Also defined in asm/ptrace-x86_64.h, but not in libc headers. So, these - * are already defined for kernel code, but not for userspace code. - */ -#ifndef FS_BASE -/* These aren't defined in ptrace.h, but exist in struct user_regs_struct, - * which is what x86_64 ptrace actually uses. - */ -#define FS_BASE (HOST_FS_BASE * sizeof(long)) -#define GS_BASE (HOST_GS_BASE * sizeof(long)) -#define DS (HOST_DS * sizeof(long)) -#define ES (HOST_ES * sizeof(long)) -#define FS (HOST_FS * sizeof(long)) -#define GS (HOST_GS * sizeof(long)) -#endif - -#define REGS_FS_BASE(r) ((r)[HOST_FS_BASE]) -#define REGS_GS_BASE(r) ((r)[HOST_GS_BASE]) -#define REGS_DS(r) ((r)[HOST_DS]) -#define REGS_ES(r) ((r)[HOST_ES]) -#define REGS_FS(r) ((r)[HOST_FS]) -#define REGS_GS(r) ((r)[HOST_GS]) - -#define REGS_ORIG_RAX(r) ((r)[HOST_ORIG_RAX]) - -#define REGS_SET_SYSCALL_RETURN(r, res) REGS_RAX(r) = (res) - -#define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r)) - -#define REGS_SEGV_IS_FIXABLE(r) SEGV_IS_FIXABLE((r)->trap_type) - -#define REGS_FAULT_ADDR(r) ((r)->fault_addr) - -#define REGS_FAULT_WRITE(r) FAULT_WRITE((r)->fault_type) - -#define REGS_TRAP(r) ((r)->trap_type) - -#define REGS_ERR(r) ((r)->fault_type) - -struct uml_pt_regs { - unsigned long gp[MAX_REG_NR]; - unsigned long fp[HOST_FP_SIZE]; - struct faultinfo faultinfo; - long syscall; - int is_user; -}; - -#define EMPTY_UML_PT_REGS { } - -#define UPT_RBX(r) REGS_RBX((r)->gp) -#define UPT_RCX(r) REGS_RCX((r)->gp) -#define UPT_RDX(r) REGS_RDX((r)->gp) -#define UPT_RSI(r) REGS_RSI((r)->gp) -#define UPT_RDI(r) REGS_RDI((r)->gp) -#define UPT_RBP(r) REGS_RBP((r)->gp) -#define UPT_RAX(r) REGS_RAX((r)->gp) -#define UPT_R8(r) REGS_R8((r)->gp) -#define UPT_R9(r) REGS_R9((r)->gp) -#define UPT_R10(r) REGS_R10((r)->gp) -#define UPT_R11(r) REGS_R11((r)->gp) -#define UPT_R12(r) REGS_R12((r)->gp) -#define UPT_R13(r) REGS_R13((r)->gp) -#define UPT_R14(r) REGS_R14((r)->gp) -#define UPT_R15(r) REGS_R15((r)->gp) -#define UPT_CS(r) REGS_CS((r)->gp) -#define UPT_FS_BASE(r) REGS_FS_BASE((r)->gp) -#define UPT_FS(r) REGS_FS((r)->gp) -#define UPT_GS_BASE(r) REGS_GS_BASE((r)->gp) -#define UPT_GS(r) REGS_GS((r)->gp) -#define UPT_DS(r) REGS_DS((r)->gp) -#define UPT_ES(r) REGS_ES((r)->gp) -#define UPT_CS(r) REGS_CS((r)->gp) -#define UPT_SS(r) REGS_SS((r)->gp) -#define UPT_ORIG_RAX(r) REGS_ORIG_RAX((r)->gp) - -#define UPT_IP(r) REGS_IP((r)->gp) -#define UPT_SP(r) REGS_SP((r)->gp) - -#define UPT_EFLAGS(r) REGS_EFLAGS((r)->gp) -#define UPT_SYSCALL_NR(r) ((r)->syscall) -#define UPT_SYSCALL_RET(r) UPT_RAX(r) - -extern int user_context(unsigned long sp); - -#define UPT_IS_USER(r) ((r)->is_user) - -#define UPT_SYSCALL_ARG1(r) UPT_RDI(r) -#define UPT_SYSCALL_ARG2(r) UPT_RSI(r) -#define UPT_SYSCALL_ARG3(r) UPT_RDX(r) -#define UPT_SYSCALL_ARG4(r) UPT_R10(r) -#define UPT_SYSCALL_ARG5(r) UPT_R8(r) -#define UPT_SYSCALL_ARG6(r) UPT_R9(r) - -struct syscall_args { - unsigned long args[6]; -}; - -#define SYSCALL_ARGS(r) ((struct syscall_args) \ - { .args = { UPT_SYSCALL_ARG1(r), \ - UPT_SYSCALL_ARG2(r), \ - UPT_SYSCALL_ARG3(r), \ - UPT_SYSCALL_ARG4(r), \ - UPT_SYSCALL_ARG5(r), \ - UPT_SYSCALL_ARG6(r) } } ) - -#define UPT_REG(regs, reg) \ - ({ unsigned long val; \ - switch(reg){ \ - case R8: val = UPT_R8(regs); break; \ - case R9: val = UPT_R9(regs); break; \ - case R10: val = UPT_R10(regs); break; \ - case R11: val = UPT_R11(regs); break; \ - case R12: val = UPT_R12(regs); break; \ - case R13: val = UPT_R13(regs); break; \ - case R14: val = UPT_R14(regs); break; \ - case R15: val = UPT_R15(regs); break; \ - case RIP: val = UPT_IP(regs); break; \ - case RSP: val = UPT_SP(regs); break; \ - case RAX: val = UPT_RAX(regs); break; \ - case RBX: val = UPT_RBX(regs); break; \ - case RCX: val = UPT_RCX(regs); break; \ - case RDX: val = UPT_RDX(regs); break; \ - case RSI: val = UPT_RSI(regs); break; \ - case RDI: val = UPT_RDI(regs); break; \ - case RBP: val = UPT_RBP(regs); break; \ - case ORIG_RAX: val = UPT_ORIG_RAX(regs); break; \ - case CS: val = UPT_CS(regs); break; \ - case SS: val = UPT_SS(regs); break; \ - case FS_BASE: val = UPT_FS_BASE(regs); break; \ - case GS_BASE: val = UPT_GS_BASE(regs); break; \ - case DS: val = UPT_DS(regs); break; \ - case ES: val = UPT_ES(regs); break; \ - case FS : val = UPT_FS (regs); break; \ - case GS: val = UPT_GS(regs); break; \ - case EFLAGS: val = UPT_EFLAGS(regs); break; \ - default : \ - panic("Bad register in UPT_REG : %d\n", reg); \ - val = -1; \ - } \ - val; \ - }) - - -#define UPT_SET(regs, reg, val) \ - ({ unsigned long __upt_val = val; \ - switch(reg){ \ - case R8: UPT_R8(regs) = __upt_val; break; \ - case R9: UPT_R9(regs) = __upt_val; break; \ - case R10: UPT_R10(regs) = __upt_val; break; \ - case R11: UPT_R11(regs) = __upt_val; break; \ - case R12: UPT_R12(regs) = __upt_val; break; \ - case R13: UPT_R13(regs) = __upt_val; break; \ - case R14: UPT_R14(regs) = __upt_val; break; \ - case R15: UPT_R15(regs) = __upt_val; break; \ - case RIP: UPT_IP(regs) = __upt_val; break; \ - case RSP: UPT_SP(regs) = __upt_val; break; \ - case RAX: UPT_RAX(regs) = __upt_val; break; \ - case RBX: UPT_RBX(regs) = __upt_val; break; \ - case RCX: UPT_RCX(regs) = __upt_val; break; \ - case RDX: UPT_RDX(regs) = __upt_val; break; \ - case RSI: UPT_RSI(regs) = __upt_val; break; \ - case RDI: UPT_RDI(regs) = __upt_val; break; \ - case RBP: UPT_RBP(regs) = __upt_val; break; \ - case ORIG_RAX: UPT_ORIG_RAX(regs) = __upt_val; break; \ - case CS: UPT_CS(regs) = __upt_val; break; \ - case SS: UPT_SS(regs) = __upt_val; break; \ - case FS_BASE: UPT_FS_BASE(regs) = __upt_val; break; \ - case GS_BASE: UPT_GS_BASE(regs) = __upt_val; break; \ - case DS: UPT_DS(regs) = __upt_val; break; \ - case ES: UPT_ES(regs) = __upt_val; break; \ - case FS: UPT_FS(regs) = __upt_val; break; \ - case GS: UPT_GS(regs) = __upt_val; break; \ - case EFLAGS: UPT_EFLAGS(regs) = __upt_val; break; \ - default : \ - panic("Bad register in UPT_SET : %d\n", reg); \ - break; \ - } \ - __upt_val; \ - }) - -#define UPT_SET_SYSCALL_RETURN(r, res) \ - REGS_SET_SYSCALL_RETURN((r)->regs, (res)) - -#define UPT_RESTART_SYSCALL(r) REGS_RESTART_SYSCALL((r)->gp) - -#define UPT_SEGV_IS_FIXABLE(r) REGS_SEGV_IS_FIXABLE(&r->skas) - -#define UPT_FAULTINFO(r) (&(r)->faultinfo) - -static inline void arch_init_registers(int pid) -{ -} - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/ptrace_user.h b/arch/um/sys-x86_64/shared/sysdep/ptrace_user.h deleted file mode 100644 index 4dbccdb..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/ptrace_user.h +++ /dev/null @@ -1,77 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#ifndef __SYSDEP_X86_64_PTRACE_USER_H__ -#define __SYSDEP_X86_64_PTRACE_USER_H__ - -#define __FRAME_OFFSETS -#include <sys/ptrace.h> -#include <linux/ptrace.h> -#include <asm/ptrace.h> -#undef __FRAME_OFFSETS -#include "user_constants.h" - -#define PT_INDEX(off) ((off) / sizeof(unsigned long)) - -#define PT_SYSCALL_NR(regs) ((regs)[PT_INDEX(ORIG_RAX)]) -#define PT_SYSCALL_NR_OFFSET (ORIG_RAX) - -#define PT_SYSCALL_ARG1(regs) (((unsigned long *) (regs))[PT_INDEX(RDI)]) -#define PT_SYSCALL_ARG1_OFFSET (RDI) - -#define PT_SYSCALL_ARG2(regs) (((unsigned long *) (regs))[PT_INDEX(RSI)]) -#define PT_SYSCALL_ARG2_OFFSET (RSI) - -#define PT_SYSCALL_ARG3(regs) (((unsigned long *) (regs))[PT_INDEX(RDX)]) -#define PT_SYSCALL_ARG3_OFFSET (RDX) - -#define PT_SYSCALL_ARG4(regs) (((unsigned long *) (regs))[PT_INDEX(RCX)]) -#define PT_SYSCALL_ARG4_OFFSET (RCX) - -#define PT_SYSCALL_ARG5(regs) (((unsigned long *) (regs))[PT_INDEX(R8)]) -#define PT_SYSCALL_ARG5_OFFSET (R8) - -#define PT_SYSCALL_ARG6(regs) (((unsigned long *) (regs))[PT_INDEX(R9)]) -#define PT_SYSCALL_ARG6_OFFSET (R9) - -#define PT_SYSCALL_RET_OFFSET (RAX) - -#define PT_IP_OFFSET (RIP) -#define PT_IP(regs) ((regs)[PT_INDEX(RIP)]) - -#define PT_SP_OFFSET (RSP) -#define PT_SP(regs) ((regs)[PT_INDEX(RSP)]) - -#define PT_ORIG_RAX_OFFSET (ORIG_RAX) -#define PT_ORIG_RAX(regs) ((regs)[PT_INDEX(ORIG_RAX)]) - -/* - * x86_64 FC3 doesn't define this in /usr/include/linux/ptrace.h even though - * it's defined in the kernel's include/linux/ptrace.h. Additionally, use the - * 2.4 name and value for 2.4 host compatibility. - */ -#ifndef PTRACE_OLDSETOPTIONS -#define PTRACE_OLDSETOPTIONS 21 -#endif - -/* - * These are before the system call, so the system call number is RAX - * rather than ORIG_RAX, and arg4 is R10 rather than RCX - */ -#define REGS_SYSCALL_NR PT_INDEX(RAX) -#define REGS_SYSCALL_ARG1 PT_INDEX(RDI) -#define REGS_SYSCALL_ARG2 PT_INDEX(RSI) -#define REGS_SYSCALL_ARG3 PT_INDEX(RDX) -#define REGS_SYSCALL_ARG4 PT_INDEX(R10) -#define REGS_SYSCALL_ARG5 PT_INDEX(R8) -#define REGS_SYSCALL_ARG6 PT_INDEX(R9) - -#define REGS_IP_INDEX PT_INDEX(RIP) -#define REGS_SP_INDEX PT_INDEX(RSP) - -#define FP_SIZE (HOST_FP_SIZE) - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/sc.h b/arch/um/sys-x86_64/shared/sysdep/sc.h deleted file mode 100644 index 8aee45b..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/sc.h +++ /dev/null @@ -1,45 +0,0 @@ -#ifndef __SYSDEP_X86_64_SC_H -#define __SYSDEP_X86_64_SC_H - -/* Copyright (C) 2003 - 2004 PathScale, Inc - * Released under the GPL - */ - -#include <user_constants.h> - -#define SC_OFFSET(sc, field) \ - *((unsigned long *) &(((char *) (sc))[HOST_##field])) - -#define SC_RBX(sc) SC_OFFSET(sc, SC_RBX) -#define SC_RCX(sc) SC_OFFSET(sc, SC_RCX) -#define SC_RDX(sc) SC_OFFSET(sc, SC_RDX) -#define SC_RSI(sc) SC_OFFSET(sc, SC_RSI) -#define SC_RDI(sc) SC_OFFSET(sc, SC_RDI) -#define SC_RBP(sc) SC_OFFSET(sc, SC_RBP) -#define SC_RAX(sc) SC_OFFSET(sc, SC_RAX) -#define SC_R8(sc) SC_OFFSET(sc, SC_R8) -#define SC_R9(sc) SC_OFFSET(sc, SC_R9) -#define SC_R10(sc) SC_OFFSET(sc, SC_R10) -#define SC_R11(sc) SC_OFFSET(sc, SC_R11) -#define SC_R12(sc) SC_OFFSET(sc, SC_R12) -#define SC_R13(sc) SC_OFFSET(sc, SC_R13) -#define SC_R14(sc) SC_OFFSET(sc, SC_R14) -#define SC_R15(sc) SC_OFFSET(sc, SC_R15) -#define SC_IP(sc) SC_OFFSET(sc, SC_IP) -#define SC_SP(sc) SC_OFFSET(sc, SC_SP) -#define SC_CR2(sc) SC_OFFSET(sc, SC_CR2) -#define SC_ERR(sc) SC_OFFSET(sc, SC_ERR) -#define SC_TRAPNO(sc) SC_OFFSET(sc, SC_TRAPNO) -#define SC_CS(sc) SC_OFFSET(sc, SC_CS) -#define SC_FS(sc) SC_OFFSET(sc, SC_FS) -#define SC_GS(sc) SC_OFFSET(sc, SC_GS) -#define SC_EFLAGS(sc) SC_OFFSET(sc, SC_EFLAGS) -#define SC_SIGMASK(sc) SC_OFFSET(sc, SC_SIGMASK) -#define SC_SS(sc) SC_OFFSET(sc, SC_SS) -#if 0 -#define SC_ORIG_RAX(sc) SC_OFFSET(sc, SC_ORIG_RAX) -#define SC_DS(sc) SC_OFFSET(sc, SC_DS) -#define SC_ES(sc) SC_OFFSET(sc, SC_ES) -#endif - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/sigcontext.h b/arch/um/sys-x86_64/shared/sysdep/sigcontext.h deleted file mode 100644 index 0155133..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/sigcontext.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#ifndef __SYSDEP_X86_64_SIGCONTEXT_H -#define __SYSDEP_X86_64_SIGCONTEXT_H - -#include <sysdep/sc.h> - -#define IP_RESTART_SYSCALL(ip) ((ip) -= 2) - -#define GET_FAULTINFO_FROM_SC(fi, sc) \ - { \ - (fi).cr2 = SC_CR2(sc); \ - (fi).error_code = SC_ERR(sc); \ - (fi).trap_no = SC_TRAPNO(sc); \ - } - -/* This is Page Fault */ -#define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14) - -/* No broken SKAS API, which doesn't pass trap_no, here. */ -#define SEGV_MAYBE_FIXABLE(fi) 0 - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/skas_ptrace.h b/arch/um/sys-x86_64/shared/sysdep/skas_ptrace.h deleted file mode 100644 index 95db4be7..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/skas_ptrace.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#ifndef __SYSDEP_X86_64_SKAS_PTRACE_H -#define __SYSDEP_X86_64_SKAS_PTRACE_H - -struct ptrace_faultinfo { - int is_write; - unsigned long addr; -}; - -struct ptrace_ldt { - int func; - void *ptr; - unsigned long bytecount; -}; - -#define PTRACE_LDT 54 - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/stub.h b/arch/um/sys-x86_64/shared/sysdep/stub.h deleted file mode 100644 index 3432aa2..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/stub.h +++ /dev/null @@ -1,107 +0,0 @@ -/* - * Copyright (C) 2004 Jeff Dike (jdike@addtoit.com) - * Licensed under the GPL - */ - -#ifndef __SYSDEP_STUB_H -#define __SYSDEP_STUB_H - -#include <sys/mman.h> -#include <asm/unistd.h> -#include <sysdep/ptrace_user.h> -#include "as-layout.h" -#include "stub-data.h" -#include "kern_constants.h" - -extern void stub_segv_handler(int sig); -extern void stub_clone_handler(void); - -#define STUB_SYSCALL_RET PT_INDEX(RAX) -#define STUB_MMAP_NR __NR_mmap -#define MMAP_OFFSET(o) (o) - -#define __syscall_clobber "r11","rcx","memory" -#define __syscall "syscall" - -static inline long stub_syscall0(long syscall) -{ - long ret; - - __asm__ volatile (__syscall - : "=a" (ret) - : "0" (syscall) : __syscall_clobber ); - - return ret; -} - -static inline long stub_syscall2(long syscall, long arg1, long arg2) -{ - long ret; - - __asm__ volatile (__syscall - : "=a" (ret) - : "0" (syscall), "D" (arg1), "S" (arg2) : __syscall_clobber ); - - return ret; -} - -static inline long stub_syscall3(long syscall, long arg1, long arg2, long arg3) -{ - long ret; - - __asm__ volatile (__syscall - : "=a" (ret) - : "0" (syscall), "D" (arg1), "S" (arg2), "d" (arg3) - : __syscall_clobber ); - - return ret; -} - -static inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3, - long arg4) -{ - long ret; - - __asm__ volatile ("movq %5,%%r10 ; " __syscall - : "=a" (ret) - : "0" (syscall), "D" (arg1), "S" (arg2), "d" (arg3), - "g" (arg4) - : __syscall_clobber, "r10" ); - - return ret; -} - -static inline long stub_syscall5(long syscall, long arg1, long arg2, long arg3, - long arg4, long arg5) -{ - long ret; - - __asm__ volatile ("movq %5,%%r10 ; movq %6,%%r8 ; " __syscall - : "=a" (ret) - : "0" (syscall), "D" (arg1), "S" (arg2), "d" (arg3), - "g" (arg4), "g" (arg5) - : __syscall_clobber, "r10", "r8" ); - - return ret; -} - -static inline void trap_myself(void) -{ - __asm("int3"); -} - -static inline void remap_stack(long fd, unsigned long offset) -{ - __asm__ volatile ("movq %4,%%r10 ; movq %5,%%r8 ; " - "movq %6, %%r9; " __syscall "; movq %7, %%rbx ; " - "movq %%rax, (%%rbx)": - : "a" (STUB_MMAP_NR), "D" (STUB_DATA), - "S" (UM_KERN_PAGE_SIZE), - "d" (PROT_READ | PROT_WRITE), - "g" (MAP_FIXED | MAP_SHARED), "g" (fd), - "g" (offset), - "i" (&((struct stub_data *) STUB_DATA)->err) - : __syscall_clobber, "r10", "r8", "r9" ); -} - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/syscalls.h b/arch/um/sys-x86_64/shared/sysdep/syscalls.h deleted file mode 100644 index 7cfb0b08..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/syscalls.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#ifndef __SYSDEP_X86_64_SYSCALLS_H__ -#define __SYSDEP_X86_64_SYSCALLS_H__ - -#include <linux/msg.h> -#include <linux/shm.h> -#include <kern_constants.h> - -typedef long syscall_handler_t(void); - -extern syscall_handler_t *sys_call_table[]; - -#define EXECUTE_SYSCALL(syscall, regs) \ - (((long (*)(long, long, long, long, long, long)) \ - (*sys_call_table[syscall]))(UPT_SYSCALL_ARG1(®s->regs), \ - UPT_SYSCALL_ARG2(®s->regs), \ - UPT_SYSCALL_ARG3(®s->regs), \ - UPT_SYSCALL_ARG4(®s->regs), \ - UPT_SYSCALL_ARG5(®s->regs), \ - UPT_SYSCALL_ARG6(®s->regs))) - -extern long old_mmap(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff); -extern syscall_handler_t sys_modify_ldt; -extern syscall_handler_t sys_arch_prctl; - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/system.h b/arch/um/sys-x86_64/shared/sysdep/system.h deleted file mode 100644 index d1b93c4..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/system.h +++ /dev/null @@ -1,132 +0,0 @@ -#ifndef _ASM_X86_SYSTEM_H_ -#define _ASM_X86_SYSTEM_H_ - -#include <asm/asm.h> -#include <asm/segment.h> -#include <asm/cpufeature.h> -#include <asm/cmpxchg.h> -#include <asm/nops.h> - -#include <linux/kernel.h> -#include <linux/irqflags.h> - -/* entries in ARCH_DLINFO: */ -#ifdef CONFIG_IA32_EMULATION -# define AT_VECTOR_SIZE_ARCH 2 -#else -# define AT_VECTOR_SIZE_ARCH 1 -#endif - -extern unsigned long arch_align_stack(unsigned long sp); - -void default_idle(void); - -/* - * Force strict CPU ordering. - * And yes, this is required on UP too when we're talking - * to devices. - */ -#ifdef CONFIG_X86_32 -/* - * Some non-Intel clones support out of order store. wmb() ceases to be a - * nop for these. - */ -#define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2) -#define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2) -#define wmb() alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM) -#else -#define mb() asm volatile("mfence":::"memory") -#define rmb() asm volatile("lfence":::"memory") -#define wmb() asm volatile("sfence" ::: "memory") -#endif - -/** - * read_barrier_depends - Flush all pending reads that subsequents reads - * depend on. - * - * No data-dependent reads from memory-like regions are ever reordered - * over this barrier. All reads preceding this primitive are guaranteed - * to access memory (but not necessarily other CPUs' caches) before any - * reads following this primitive that depend on the data return by - * any of the preceding reads. This primitive is much lighter weight than - * rmb() on most CPUs, and is never heavier weight than is - * rmb(). - * - * These ordering constraints are respected by both the local CPU - * and the compiler. - * - * Ordering is not guaranteed by anything other than these primitives, - * not even by data dependencies. See the documentation for - * memory_barrier() for examples and URLs to more information. - * - * For example, the following code would force ordering (the initial - * value of "a" is zero, "b" is one, and "p" is "&a"): - * - * <programlisting> - * CPU 0 CPU 1 - * - * b = 2; - * memory_barrier(); - * p = &b; q = p; - * read_barrier_depends(); - * d = *q; - * </programlisting> - * - * because the read of "*q" depends on the read of "p" and these - * two reads are separated by a read_barrier_depends(). However, - * the following code, with the same initial values for "a" and "b": - * - * <programlisting> - * CPU 0 CPU 1 - * - * a = 2; - * memory_barrier(); - * b = 3; y = b; - * read_barrier_depends(); - * x = a; - * </programlisting> - * - * does not enforce ordering, since there is no data dependency between - * the read of "a" and the read of "b". Therefore, on some CPUs, such - * as Alpha, "y" could be set to 3 and "x" to 0. Use rmb() - * in cases like this where there are no data dependencies. - **/ - -#define read_barrier_depends() do { } while (0) - -#ifdef CONFIG_SMP -#define smp_mb() mb() -#ifdef CONFIG_X86_PPRO_FENCE -# define smp_rmb() rmb() -#else -# define smp_rmb() barrier() -#endif -#ifdef CONFIG_X86_OOSTORE -# define smp_wmb() wmb() -#else -# define smp_wmb() barrier() -#endif -#define smp_read_barrier_depends() read_barrier_depends() -#define set_mb(var, value) do { (void)xchg(&var, value); } while (0) -#else -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#define smp_read_barrier_depends() do { } while (0) -#define set_mb(var, value) do { var = value; barrier(); } while (0) -#endif - -/* - * Stop RDTSC speculation. This is needed when you need to use RDTSC - * (or get_cycles or vread that possibly accesses the TSC) in a defined - * code region. - * - * (Could use an alternative three way for this if there was one.) - */ -static inline void rdtsc_barrier(void) -{ - alternative(ASM_NOP3, "mfence", X86_FEATURE_MFENCE_RDTSC); - alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC); -} - -#endif diff --git a/arch/um/sys-x86_64/shared/sysdep/tls.h b/arch/um/sys-x86_64/shared/sysdep/tls.h deleted file mode 100644 index 18c000d..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/tls.h +++ /dev/null @@ -1,29 +0,0 @@ -#ifndef _SYSDEP_TLS_H -#define _SYSDEP_TLS_H - -# ifndef __KERNEL__ - -/* Change name to avoid conflicts with the original one from <asm/ldt.h>, which - * may be named user_desc (but in 2.4 and in header matching its API was named - * modify_ldt_ldt_s). */ - -typedef struct um_dup_user_desc { - unsigned int entry_number; - unsigned int base_addr; - unsigned int limit; - unsigned int seg_32bit:1; - unsigned int contents:2; - unsigned int read_exec_only:1; - unsigned int limit_in_pages:1; - unsigned int seg_not_present:1; - unsigned int useable:1; - unsigned int lm:1; -} user_desc_t; - -# else /* __KERNEL__ */ - -# include <ldt.h> -typedef struct user_desc user_desc_t; - -# endif /* __KERNEL__ */ -#endif /* _SYSDEP_TLS_H */ diff --git a/arch/um/sys-x86_64/shared/sysdep/vm-flags.h b/arch/um/sys-x86_64/shared/sysdep/vm-flags.h deleted file mode 100644 index 3978e55..0000000 --- a/arch/um/sys-x86_64/shared/sysdep/vm-flags.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * Copyright (C) 2004 Jeff Dike (jdike@addtoit.com) - * Copyright 2003 PathScale, Inc. - * Licensed under the GPL - */ - -#ifndef __VM_FLAGS_X86_64_H -#define __VM_FLAGS_X86_64_H - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -#define VM_STACK_DEFAULT_FLAGS (VM_GROWSDOWN | VM_READ | VM_WRITE | \ - VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#endif diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c deleted file mode 100644 index b6b65c7..0000000 --- a/arch/um/sys-x86_64/signal.c +++ /dev/null @@ -1,290 +0,0 @@ -/* - * Copyright (C) 2003 PathScale, Inc. - * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - * Licensed under the GPL - */ - -#include <linux/personality.h> -#include <linux/ptrace.h> -#include <linux/kernel.h> -#include <asm/unistd.h> -#include <asm/uaccess.h> -#include <asm/ucontext.h> -#include "frame_kern.h" -#include "skas.h" - -void copy_sc(struct uml_pt_regs *regs, void *from) -{ - struct sigcontext *sc = from; - -#define GETREG(regs, regno, sc, regname) \ - (regs)->gp[(regno) / sizeof(unsigned long)] = (sc)->regname - - GETREG(regs, R8, sc, r8); - GETREG(regs, R9, sc, r9); - GETREG(regs, R10, sc, r10); - GETREG(regs, R11, sc, r11); - GETREG(regs, R12, sc, r12); - GETREG(regs, R13, sc, r13); - GETREG(regs, R14, sc, r14); - GETREG(regs, R15, sc, r15); - GETREG(regs, RDI, sc, di); - GETREG(regs, RSI, sc, si); - GETREG(regs, RBP, sc, bp); - GETREG(regs, RBX, sc, bx); - GETREG(regs, RDX, sc, dx); - GETREG(regs, RAX, sc, ax); - GETREG(regs, RCX, sc, cx); - GETREG(regs, RSP, sc, sp); - GETREG(regs, RIP, sc, ip); - GETREG(regs, EFLAGS, sc, flags); - GETREG(regs, CS, sc, cs); - -#undef GETREG -} - -static int copy_sc_from_user(struct pt_regs *regs, - struct sigcontext __user *from, - struct _fpstate __user *fpp) -{ - struct user_i387_struct fp; - int err = 0; - -#define GETREG(regs, regno, sc, regname) \ - __get_user((regs)->regs.gp[(regno) / sizeof(unsigned long)], \ - &(sc)->regname) - - err |= GETREG(regs, R8, from, r8); - err |= GETREG(regs, R9, from, r9); - err |= GETREG(regs, R10, from, r10); - err |= GETREG(regs, R11, from, r11); - err |= GETREG(regs, R12, from, r12); - err |= GETREG(regs, R13, from, r13); - err |= GETREG(regs, R14, from, r14); - err |= GETREG(regs, R15, from, r15); - err |= GETREG(regs, RDI, from, di); - err |= GETREG(regs, RSI, from, si); - err |= GETREG(regs, RBP, from, bp); - err |= GETREG(regs, RBX, from, bx); - err |= GETREG(regs, RDX, from, dx); - err |= GETREG(regs, RAX, from, ax); - err |= GETREG(regs, RCX, from, cx); - err |= GETREG(regs, RSP, from, sp); - err |= GETREG(regs, RIP, from, ip); - err |= GETREG(regs, EFLAGS, from, flags); - err |= GETREG(regs, CS, from, cs); - if (err) - return 1; - -#undef GETREG - - err = copy_from_user(&fp, fpp, sizeof(struct user_i387_struct)); - if (err) - return 1; - - err = restore_fp_registers(userspace_pid[current_thread_info()->cpu], - (unsigned long *) &fp); - if (err < 0) { - printk(KERN_ERR "copy_sc_from_user - " - "restore_fp_registers failed, errno = %d\n", - -err); - return 1; - } - - return 0; -} - -static int copy_sc_to_user(struct sigcontext __user *to, - struct _fpstate __user *to_fp, struct pt_regs *regs, - unsigned long mask, unsigned long sp) -{ - struct faultinfo * fi = ¤t->thread.arch.faultinfo; - struct user_i387_struct fp; - int err = 0; - - err |= __put_user(0, &to->gs); - err |= __put_user(0, &to->fs); - -#define PUTREG(regs, regno, sc, regname) \ - __put_user((regs)->regs.gp[(regno) / sizeof(unsigned long)], \ - &(sc)->regname) - - err |= PUTREG(regs, RDI, to, di); - err |= PUTREG(regs, RSI, to, si); - err |= PUTREG(regs, RBP, to, bp); - /* - * Must use original RSP, which is passed in, rather than what's in - * the pt_regs, because that's already been updated to point at the - * signal frame. - */ - err |= __put_user(sp, &to->sp); - err |= PUTREG(regs, RBX, to, bx); - err |= PUTREG(regs, RDX, to, dx); - err |= PUTREG(regs, RCX, to, cx); - err |= PUTREG(regs, RAX, to, ax); - err |= PUTREG(regs, R8, to, r8); - err |= PUTREG(regs, R9, to, r9); - err |= PUTREG(regs, R10, to, r10); - err |= PUTREG(regs, R11, to, r11); - err |= PUTREG(regs, R12, to, r12); - err |= PUTREG(regs, R13, to, r13); - err |= PUTREG(regs, R14, to, r14); - err |= PUTREG(regs, R15, to, r15); - err |= PUTREG(regs, CS, to, cs); /* XXX x86_64 doesn't do this */ - - err |= __put_user(fi->cr2, &to->cr2); - err |= __put_user(fi->error_code, &to->err); - err |= __put_user(fi->trap_no, &to->trapno); - - err |= PUTREG(regs, RIP, to, ip); - err |= PUTREG(regs, EFLAGS, to, flags); -#undef PUTREG - - err |= __put_user(mask, &to->oldmask); - if (err) - return 1; - - err = save_fp_registers(userspace_pid[current_thread_info()->cpu], - (unsigned long *) &fp); - if (err < 0) { - printk(KERN_ERR "copy_sc_from_user - restore_fp_registers " - "failed, errno = %d\n", -err); - return 1; - } - - if (copy_to_user(to_fp, &fp, sizeof(struct user_i387_struct))) - return 1; - - return err; -} - -struct rt_sigframe -{ - char __user *pretcode; - struct ucontext uc; - struct siginfo info; - struct _fpstate fpstate; -}; - -int setup_signal_stack_si(unsigned long stack_top, int sig, - struct k_sigaction *ka, struct pt_regs * regs, - siginfo_t *info, sigset_t *set) -{ - struct rt_sigframe __user *frame; - unsigned long save_sp = PT_REGS_RSP(regs); - int err = 0; - struct task_struct *me = current; - - frame = (struct rt_sigframe __user *) - round_down(stack_top - sizeof(struct rt_sigframe), 16); - /* Subtract 128 for a red zone and 8 for proper alignment */ - frame = (struct rt_sigframe __user *) ((unsigned long) frame - 128 - 8); - - if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - goto out; - - if (ka->sa.sa_flags & SA_SIGINFO) { - err |= copy_siginfo_to_user(&frame->info, info); - if (err) - goto out; - } - - /* - * Update SP now because the page fault handler refuses to extend - * the stack if the faulting address is too far below the current - * SP, which frame now certainly is. If there's an error, the original - * value is restored on the way out. - * When writing the sigcontext to the stack, we have to write the - * original value, so that's passed to copy_sc_to_user, which does - * the right thing with it. - */ - PT_REGS_RSP(regs) = (unsigned long) frame; - - /* Create the ucontext. */ - err |= __put_user(0, &frame->uc.uc_flags); - err |= __put_user(0, &frame->uc.uc_link); - err |= __put_user(me->sas_ss_sp, &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(save_sp), - &frame->uc.uc_stack.ss_flags); - err |= __put_user(me->sas_ss_size, &frame->uc.uc_stack.ss_size); - err |= copy_sc_to_user(&frame->uc.uc_mcontext, &frame->fpstate, regs, - set->sig[0], save_sp); - err |= __put_user(&frame->fpstate, &frame->uc.uc_mcontext.fpstate); - if (sizeof(*set) == 16) { - __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]); - __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]); - } - else - err |= __copy_to_user(&frame->uc.uc_sigmask, set, - sizeof(*set)); - - /* - * Set up to return from userspace. If provided, use a stub - * already in userspace. - */ - /* x86-64 should always use SA_RESTORER. */ - if (ka->sa.sa_flags & SA_RESTORER) - err |= __put_user(ka->sa.sa_restorer, &frame->pretcode); - else - /* could use a vstub here */ - goto restore_sp; - - if (err) - goto restore_sp; - - /* Set up registers for signal handler */ - { - struct exec_domain *ed = current_thread_info()->exec_domain; - if (unlikely(ed && ed->signal_invmap && sig < 32)) - sig = ed->signal_invmap[sig]; - } - - PT_REGS_RDI(regs) = sig; - /* In case the signal handler was declared without prototypes */ - PT_REGS_RAX(regs) = 0; - - /* - * This also works for non SA_SIGINFO handlers because they expect the - * next argument after the signal number on the stack. - */ - PT_REGS_RSI(regs) = (unsigned long) &frame->info; - PT_REGS_RDX(regs) = (unsigned long) &frame->uc; - PT_REGS_RIP(regs) = (unsigned long) ka->sa.sa_handler; - out: - return err; - -restore_sp: - PT_REGS_RSP(regs) = save_sp; - return err; -} - -long sys_rt_sigreturn(struct pt_regs *regs) -{ - unsigned long sp = PT_REGS_SP(¤t->thread.regs); - struct rt_sigframe __user *frame = - (struct rt_sigframe __user *)(sp - 8); - struct ucontext __user *uc = &frame->uc; - sigset_t set; - - if (copy_from_user(&set, &uc->uc_sigmask, sizeof(set))) - goto segfault; - - sigdelsetmask(&set, ~_BLOCKABLE); - - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (copy_sc_from_user(¤t->thread.regs, &uc->uc_mcontext, - &frame->fpstate)) - goto segfault; - - /* Avoid ERESTART handling */ - PT_REGS_SYSCALL_NR(¤t->thread.regs) = -1; - return PT_REGS_SYSCALL_RET(¤t->thread.regs); - - segfault: - force_sig(SIGSEGV, current); - return 0; -} diff --git a/arch/um/sys-x86_64/stub.S b/arch/um/sys-x86_64/stub.S deleted file mode 100644 index 20e4a96..0000000 --- a/arch/um/sys-x86_64/stub.S +++ /dev/null @@ -1,66 +0,0 @@ -#include "as-layout.h" - - .globl syscall_stub -.section .__syscall_stub, "ax" -syscall_stub: - syscall - /* We don't have 64-bit constants, so this constructs the address - * we need. - */ - movq $(STUB_DATA >> 32), %rbx - salq $32, %rbx - movq $(STUB_DATA & 0xffffffff), %rcx - or %rcx, %rbx - movq %rax, (%rbx) - int3 - - .globl batch_syscall_stub -batch_syscall_stub: - mov $(STUB_DATA >> 32), %rbx - sal $32, %rbx - mov $(STUB_DATA & 0xffffffff), %rax - or %rax, %rbx - /* load pointer to first operation */ - mov %rbx, %rsp - add $0x10, %rsp -again: - /* load length of additional data */ - mov 0x0(%rsp), %rax - - /* if(length == 0) : end of list */ - /* write possible 0 to header */ - mov %rax, 8(%rbx) - cmp $0, %rax - jz done - - /* save current pointer */ - mov %rsp, 8(%rbx) - - /* skip additional data */ - add %rax, %rsp - - /* load syscall-# */ - pop %rax - - /* load syscall params */ - pop %rdi - pop %rsi - pop %rdx - pop %r10 - pop %r8 - pop %r9 - - /* execute syscall */ - syscall - - /* check return value */ - pop %rcx - cmp %rcx, %rax - je again - -done: - /* save return value */ - mov %rax, (%rbx) - - /* stop */ - int3 diff --git a/arch/um/sys-x86_64/stub_segv.c b/arch/um/sys-x86_64/stub_segv.c deleted file mode 100644 index ced051a..0000000 --- a/arch/um/sys-x86_64/stub_segv.c +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - * Licensed under the GPL - */ - -#include <signal.h> -#include "as-layout.h" -#include "sysdep/stub.h" -#include "sysdep/faultinfo.h" -#include "sysdep/sigcontext.h" - -void __attribute__ ((__section__ (".__syscall_stub"))) -stub_segv_handler(int sig) -{ - struct ucontext *uc; - - __asm__ __volatile__("movq %%rdx, %0" : "=g" (uc) :); - GET_FAULTINFO_FROM_SC(*((struct faultinfo *) STUB_DATA), - &uc->uc_mcontext); - trap_myself(); -} - diff --git a/arch/um/sys-x86_64/syscall_table.c b/arch/um/sys-x86_64/syscall_table.c deleted file mode 100644 index 47d469e..0000000 --- a/arch/um/sys-x86_64/syscall_table.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * System call table for UML/x86-64, copied from arch/x86_64/kernel/syscall.c - * with some changes for UML. - */ - -#include <linux/linkage.h> -#include <linux/sys.h> -#include <linux/cache.h> -#include <kern_constants.h> - -#define __NO_STUBS - -/* - * Below you can see, in terms of #define's, the differences between the x86-64 - * and the UML syscall table. - */ - -/* Not going to be implemented by UML, since we have no hardware. */ -#define stub_iopl sys_ni_syscall -#define sys_ioperm sys_ni_syscall - -/* - * The UML TLS problem. Note that x86_64 does not implement this, so the below - * is needed only for the ia32 compatibility. - */ - -/* On UML we call it this way ("old" means it's not mmap2) */ -#define sys_mmap old_mmap - -#define stub_clone sys_clone -#define stub_fork sys_fork -#define stub_vfork sys_vfork -#define stub_execve sys_execve -#define stub_rt_sigsuspend sys_rt_sigsuspend -#define stub_sigaltstack sys_sigaltstack -#define stub_rt_sigreturn sys_rt_sigreturn - -#define __SYSCALL(nr, sym) extern asmlinkage void sym(void) ; -#undef _ASM_X86_UNISTD_64_H -#include "../../x86/include/asm/unistd_64.h" - -#undef __SYSCALL -#define __SYSCALL(nr, sym) [ nr ] = sym, -#undef _ASM_X86_UNISTD_64_H - -typedef void (*sys_call_ptr_t)(void); - -extern void sys_ni_syscall(void); - -/* - * We used to have a trick here which made sure that holes in the - * x86_64 table were filled in with sys_ni_syscall, but a comment in - * unistd_64.h says that holes aren't allowed, so the trick was - * removed. - * The trick looked like this - * [0 ... UM_NR_syscall_max] = &sys_ni_syscall - * before including unistd_64.h - the later initializations overwrote - * the sys_ni_syscall filler. - */ - -sys_call_ptr_t sys_call_table[] __cacheline_aligned = { -#include "../../x86/include/asm/unistd_64.h" -}; - -int syscall_table_size = sizeof(sys_call_table); diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c deleted file mode 100644 index f3d82bb..0000000 --- a/arch/um/sys-x86_64/syscalls.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#include "linux/linkage.h" -#include "linux/personality.h" -#include "linux/utsname.h" -#include "asm/prctl.h" /* XXX This should get the constants from libc */ -#include "asm/uaccess.h" -#include "os.h" - -long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr) -{ - unsigned long *ptr = addr, tmp; - long ret; - int pid = task->mm->context.id.u.pid; - - /* - * With ARCH_SET_FS (and ARCH_SET_GS is treated similarly to - * be safe), we need to call arch_prctl on the host because - * setting %fs may result in something else happening (like a - * GDT or thread.fs being set instead). So, we let the host - * fiddle the registers and thread struct and restore the - * registers afterwards. - * - * So, the saved registers are stored to the process (this - * needed because a stub may have been the last thing to run), - * arch_prctl is run on the host, then the registers are read - * back. - */ - switch (code) { - case ARCH_SET_FS: - case ARCH_SET_GS: - ret = restore_registers(pid, ¤t->thread.regs.regs); - if (ret) - return ret; - break; - case ARCH_GET_FS: - case ARCH_GET_GS: - /* - * With these two, we read to a local pointer and - * put_user it to the userspace pointer that we were - * given. If addr isn't valid (because it hasn't been - * faulted in or is just bogus), we want put_user to - * fault it in (or return -EFAULT) instead of having - * the host return -EFAULT. - */ - ptr = &tmp; - } - - ret = os_arch_prctl(pid, code, ptr); - if (ret) - return ret; - - switch (code) { - case ARCH_SET_FS: - current->thread.arch.fs = (unsigned long) ptr; - ret = save_registers(pid, ¤t->thread.regs.regs); - break; - case ARCH_SET_GS: - ret = save_registers(pid, ¤t->thread.regs.regs); - break; - case ARCH_GET_FS: - ret = put_user(tmp, addr); - break; - case ARCH_GET_GS: - ret = put_user(tmp, addr); - break; - } - - return ret; -} - -long sys_arch_prctl(int code, unsigned long addr) -{ - return arch_prctl(current, code, (unsigned long __user *) addr); -} - -long sys_clone(unsigned long clone_flags, unsigned long newsp, - void __user *parent_tid, void __user *child_tid) -{ - long ret; - - if (!newsp) - newsp = UPT_SP(¤t->thread.regs.regs); - current->thread.forking = 1; - ret = do_fork(clone_flags, newsp, ¤t->thread.regs, 0, parent_tid, - child_tid); - current->thread.forking = 0; - return ret; -} - -void arch_switch_to(struct task_struct *to) -{ - if ((to->thread.arch.fs == 0) || (to->mm == NULL)) - return; - - arch_prctl(to, ARCH_SET_FS, (void __user *) to->thread.arch.fs); -} diff --git a/arch/um/sys-x86_64/sysrq.c b/arch/um/sys-x86_64/sysrq.c deleted file mode 100644 index f4f82be..0000000 --- a/arch/um/sys-x86_64/sysrq.c +++ /dev/null @@ -1,41 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/utsname.h> -#include <asm/current.h> -#include <asm/ptrace.h> -#include "sysrq.h" - -void __show_regs(struct pt_regs *regs) -{ - printk("\n"); - print_modules(); - printk(KERN_INFO "Pid: %d, comm: %.20s %s %s\n", task_pid_nr(current), - current->comm, print_tainted(), init_utsname()->release); - printk(KERN_INFO "RIP: %04lx:[<%016lx>]\n", PT_REGS_CS(regs) & 0xffff, - PT_REGS_RIP(regs)); - printk(KERN_INFO "RSP: %016lx EFLAGS: %08lx\n", PT_REGS_RSP(regs), - PT_REGS_EFLAGS(regs)); - printk(KERN_INFO "RAX: %016lx RBX: %016lx RCX: %016lx\n", - PT_REGS_RAX(regs), PT_REGS_RBX(regs), PT_REGS_RCX(regs)); - printk(KERN_INFO "RDX: %016lx RSI: %016lx RDI: %016lx\n", - PT_REGS_RDX(regs), PT_REGS_RSI(regs), PT_REGS_RDI(regs)); - printk(KERN_INFO "RBP: %016lx R08: %016lx R09: %016lx\n", - PT_REGS_RBP(regs), PT_REGS_R8(regs), PT_REGS_R9(regs)); - printk(KERN_INFO "R10: %016lx R11: %016lx R12: %016lx\n", - PT_REGS_R10(regs), PT_REGS_R11(regs), PT_REGS_R12(regs)); - printk(KERN_INFO "R13: %016lx R14: %016lx R15: %016lx\n", - PT_REGS_R13(regs), PT_REGS_R14(regs), PT_REGS_R15(regs)); -} - -void show_regs(struct pt_regs *regs) -{ - __show_regs(regs); - show_trace(current, (unsigned long *) ®s); -} diff --git a/arch/um/sys-x86_64/tls.c b/arch/um/sys-x86_64/tls.c deleted file mode 100644 index f7ba462..0000000 --- a/arch/um/sys-x86_64/tls.c +++ /dev/null @@ -1,17 +0,0 @@ -#include "linux/sched.h" - -void clear_flushed_tls(struct task_struct *task) -{ -} - -int arch_copy_tls(struct task_struct *t) -{ - /* - * If CLONE_SETTLS is set, we need to save the thread id - * (which is argument 5, child_tid, of clone) so it can be set - * during context switches. - */ - t->thread.arch.fs = t->thread.regs.regs.gp[R8 / sizeof(long)]; - - return 0; -} diff --git a/arch/um/sys-x86_64/user-offsets.c b/arch/um/sys-x86_64/user-offsets.c deleted file mode 100644 index 9735854..0000000 --- a/arch/um/sys-x86_64/user-offsets.c +++ /dev/null @@ -1,65 +0,0 @@ -#include <stdio.h> -#include <stddef.h> -#include <signal.h> -#include <sys/poll.h> -#include <sys/mman.h> -#include <sys/user.h> -#define __FRAME_OFFSETS -#include <asm/ptrace.h> -#include <asm/types.h> - -#define DEFINE(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val)) - -#define DEFINE_LONGS(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long))) - -#define OFFSET(sym, str, mem) \ - DEFINE(sym, offsetof(struct str, mem)); - -void foo(void) -{ - OFFSET(HOST_SC_CR2, sigcontext, cr2); - OFFSET(HOST_SC_ERR, sigcontext, err); - OFFSET(HOST_SC_TRAPNO, sigcontext, trapno); - - DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long)); - DEFINE_LONGS(HOST_RBX, RBX); - DEFINE_LONGS(HOST_RCX, RCX); - DEFINE_LONGS(HOST_RDI, RDI); - DEFINE_LONGS(HOST_RSI, RSI); - DEFINE_LONGS(HOST_RDX, RDX); - DEFINE_LONGS(HOST_RBP, RBP); - DEFINE_LONGS(HOST_RAX, RAX); - DEFINE_LONGS(HOST_R8, R8); - DEFINE_LONGS(HOST_R9, R9); - DEFINE_LONGS(HOST_R10, R10); - DEFINE_LONGS(HOST_R11, R11); - DEFINE_LONGS(HOST_R12, R12); - DEFINE_LONGS(HOST_R13, R13); - DEFINE_LONGS(HOST_R14, R14); - DEFINE_LONGS(HOST_R15, R15); - DEFINE_LONGS(HOST_ORIG_RAX, ORIG_RAX); - DEFINE_LONGS(HOST_CS, CS); - DEFINE_LONGS(HOST_SS, SS); - DEFINE_LONGS(HOST_EFLAGS, EFLAGS); -#if 0 - DEFINE_LONGS(HOST_FS, FS); - DEFINE_LONGS(HOST_GS, GS); - DEFINE_LONGS(HOST_DS, DS); - DEFINE_LONGS(HOST_ES, ES); -#endif - - DEFINE_LONGS(HOST_IP, RIP); - DEFINE_LONGS(HOST_SP, RSP); - DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct)); - - /* XXX Duplicated between i386 and x86_64 */ - DEFINE(UM_POLLIN, POLLIN); - DEFINE(UM_POLLPRI, POLLPRI); - DEFINE(UM_POLLOUT, POLLOUT); - - DEFINE(UM_PROT_READ, PROT_READ); - DEFINE(UM_PROT_WRITE, PROT_WRITE); - DEFINE(UM_PROT_EXEC, PROT_EXEC); -} diff --git a/arch/um/sys-x86_64/vdso/Makefile b/arch/um/sys-x86_64/vdso/Makefile deleted file mode 100644 index 5dffe6d..0000000 --- a/arch/um/sys-x86_64/vdso/Makefile +++ /dev/null @@ -1,90 +0,0 @@ -# -# Building vDSO images for x86. -# - -VDSO64-y := y - -vdso-install-$(VDSO64-y) += vdso.so - - -# files to link into the vdso -vobjs-y := vdso-note.o um_vdso.o - -# files to link into kernel -obj-$(VDSO64-y) += vdso.o vma.o - -vobjs := $(foreach F,$(vobjs-y),$(obj)/$F) - -$(obj)/vdso.o: $(obj)/vdso.so - -targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y) - -export CPPFLAGS_vdso.lds += -P -C - -VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \ - -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 - -$(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so - -$(obj)/vdso.so.dbg: $(src)/vdso.lds $(vobjs) FORCE - $(call if_changed,vdso) - -$(obj)/%.so: OBJCOPYFLAGS := -S -$(obj)/%.so: $(obj)/%.so.dbg FORCE - $(call if_changed,objcopy) - -# -# Don't omit frame pointers for ease of userspace debugging, but do -# optimize sibling calls. -# -CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 \ - $(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \ - -fno-omit-frame-pointer -foptimize-sibling-calls - -$(vobjs): KBUILD_CFLAGS += $(CFL) - -# -# vDSO code runs in userspace and -pg doesn't help with profiling anyway. -# -CFLAGS_REMOVE_vdso-note.o = -pg -CFLAGS_REMOVE_um_vdso.o = -pg - -targets += vdso-syms.lds -obj-$(VDSO64-y) += vdso-syms.lds - -# -# Match symbols in the DSO that look like VDSO*; produce a file of constants. -# -sed-vdsosym := -e 's/^00*/0/' \ - -e 's/^\([0-9a-fA-F]*\) . \(VDSO[a-zA-Z0-9_]*\)$$/\2 = 0x\1;/p' -quiet_cmd_vdsosym = VDSOSYM $@ -define cmd_vdsosym - $(NM) $< | LC_ALL=C sed -n $(sed-vdsosym) | LC_ALL=C sort > $@ -endef - -$(obj)/%-syms.lds: $(obj)/%.so.dbg FORCE - $(call if_changed,vdsosym) - -# -# The DSO images are built using a special linker script. -# -quiet_cmd_vdso = VDSO $@ - cmd_vdso = $(CC) -nostdlib -o $@ \ - $(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \ - -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \ - sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@' - -VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) -GCOV_PROFILE := n - -# -# Install the unstripped copy of vdso*.so listed in $(vdso-install-y). -# -quiet_cmd_vdso_install = INSTALL $@ - cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@ -$(vdso-install-y): %.so: $(obj)/%.so.dbg FORCE - @mkdir -p $(MODLIB)/vdso - $(call cmd,vdso_install) - -PHONY += vdso_install $(vdso-install-y) -vdso_install: $(vdso-install-y) diff --git a/arch/um/sys-x86_64/vdso/checkundef.sh b/arch/um/sys-x86_64/vdso/checkundef.sh deleted file mode 100644 index 7ee90a9..0000000 --- a/arch/um/sys-x86_64/vdso/checkundef.sh +++ /dev/null @@ -1,10 +0,0 @@ -#!/bin/sh -nm="$1" -file="$2" -$nm "$file" | grep '^ *U' > /dev/null 2>&1 -if [ $? -eq 1 ]; then - exit 0 -else - echo "$file: undefined symbols found" >&2 - exit 1 -fi diff --git a/arch/um/sys-x86_64/vdso/um_vdso.c b/arch/um/sys-x86_64/vdso/um_vdso.c deleted file mode 100644 index 7c441b5..0000000 --- a/arch/um/sys-x86_64/vdso/um_vdso.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Copyright (C) 2011 Richard Weinberger <richrd@nod.at> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This vDSO turns all calls into a syscall so that UML can trap them. - */ - - -/* Disable profiling for userspace code */ -#define DISABLE_BRANCH_PROFILING - -#include <linux/time.h> -#include <linux/getcpu.h> -#include <asm/unistd.h> - -int __vdso_clock_gettime(clockid_t clock, struct timespec *ts) -{ - long ret; - - asm("syscall" : "=a" (ret) : - "0" (__NR_clock_gettime), "D" (clock), "S" (ts) : "memory"); - - return ret; -} -int clock_gettime(clockid_t, struct timespec *) - __attribute__((weak, alias("__vdso_clock_gettime"))); - -int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz) -{ - long ret; - - asm("syscall" : "=a" (ret) : - "0" (__NR_gettimeofday), "D" (tv), "S" (tz) : "memory"); - - return ret; -} -int gettimeofday(struct timeval *, struct timezone *) - __attribute__((weak, alias("__vdso_gettimeofday"))); - -time_t __vdso_time(time_t *t) -{ - long secs; - - asm volatile("syscall" - : "=a" (secs) - : "0" (__NR_time), "D" (t) : "cc", "r11", "cx", "memory"); - - return secs; -} -int time(time_t *t) __attribute__((weak, alias("__vdso_time"))); - -long -__vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused) -{ - /* - * UML does not support SMP, we can cheat here. :) - */ - - if (cpu) - *cpu = 0; - if (node) - *node = 0; - - return 0; -} - -long getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache) - __attribute__((weak, alias("__vdso_getcpu"))); diff --git a/arch/um/sys-x86_64/vdso/vdso-layout.lds.S b/arch/um/sys-x86_64/vdso/vdso-layout.lds.S deleted file mode 100644 index 634a2cf..0000000 --- a/arch/um/sys-x86_64/vdso/vdso-layout.lds.S +++ /dev/null @@ -1,64 +0,0 @@ -/* - * Linker script for vDSO. This is an ELF shared object prelinked to - * its virtual address, and with only one read-only segment. - * This script controls its layout. - */ - -SECTIONS -{ - . = VDSO_PRELINK + SIZEOF_HEADERS; - - .hash : { *(.hash) } :text - .gnu.hash : { *(.gnu.hash) } - .dynsym : { *(.dynsym) } - .dynstr : { *(.dynstr) } - .gnu.version : { *(.gnu.version) } - .gnu.version_d : { *(.gnu.version_d) } - .gnu.version_r : { *(.gnu.version_r) } - - .note : { *(.note.*) } :text :note - - .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr - .eh_frame : { KEEP (*(.eh_frame)) } :text - - .dynamic : { *(.dynamic) } :text :dynamic - - .rodata : { *(.rodata*) } :text - .data : { - *(.data*) - *(.sdata*) - *(.got.plt) *(.got) - *(.gnu.linkonce.d.*) - *(.bss*) - *(.dynbss*) - *(.gnu.linkonce.b.*) - } - - .altinstructions : { *(.altinstructions) } - .altinstr_replacement : { *(.altinstr_replacement) } - - /* - * Align the actual code well away from the non-instruction data. - * This is the best thing for the I-cache. - */ - . = ALIGN(0x100); - - .text : { *(.text*) } :text =0x90909090 -} - -/* - * Very old versions of ld do not recognize this name token; use the constant. - */ -#define PT_GNU_EH_FRAME 0x6474e550 - -/* - * We must supply the ELF program headers explicitly to get just one - * PT_LOAD segment, and set the flags explicitly to make segments read-only. - */ -PHDRS -{ - text PT_LOAD FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */ - dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ - note PT_NOTE FLAGS(4); /* PF_R */ - eh_frame_hdr PT_GNU_EH_FRAME; -} diff --git a/arch/um/sys-x86_64/vdso/vdso-note.S b/arch/um/sys-x86_64/vdso/vdso-note.S deleted file mode 100644 index 79a071e..0000000 --- a/arch/um/sys-x86_64/vdso/vdso-note.S +++ /dev/null @@ -1,12 +0,0 @@ -/* - * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text. - * Here we can supply some information useful to userland. - */ - -#include <linux/uts.h> -#include <linux/version.h> -#include <linux/elfnote.h> - -ELFNOTE_START(Linux, 0, "a") - .long LINUX_VERSION_CODE -ELFNOTE_END diff --git a/arch/um/sys-x86_64/vdso/vdso.S b/arch/um/sys-x86_64/vdso/vdso.S deleted file mode 100644 index ec82c16..0000000 --- a/arch/um/sys-x86_64/vdso/vdso.S +++ /dev/null @@ -1,10 +0,0 @@ -#include <linux/init.h> - -__INITDATA - - .globl vdso_start, vdso_end -vdso_start: - .incbin "arch/um/sys-x86_64/vdso/vdso.so" -vdso_end: - -__FINIT diff --git a/arch/um/sys-x86_64/vdso/vdso.lds.S b/arch/um/sys-x86_64/vdso/vdso.lds.S deleted file mode 100644 index b96b267..0000000 --- a/arch/um/sys-x86_64/vdso/vdso.lds.S +++ /dev/null @@ -1,32 +0,0 @@ -/* - * Linker script for 64-bit vDSO. - * We #include the file to define the layout details. - * Here we only choose the prelinked virtual address. - * - * This file defines the version script giving the user-exported symbols in - * the DSO. We can define local symbols here called VDSO* to make their - * values visible using the asm-x86/vdso.h macros from the kernel proper. - */ - -#define VDSO_PRELINK 0xffffffffff700000 -#include "vdso-layout.lds.S" - -/* - * This controls what userland symbols we export from the vDSO. - */ -VERSION { - LINUX_2.6 { - global: - clock_gettime; - __vdso_clock_gettime; - gettimeofday; - __vdso_gettimeofday; - getcpu; - __vdso_getcpu; - time; - __vdso_time; - local: *; - }; -} - -VDSO64_PRELINK = VDSO_PRELINK; diff --git a/arch/um/sys-x86_64/vdso/vma.c b/arch/um/sys-x86_64/vdso/vma.c deleted file mode 100644 index 9495c8d..0000000 --- a/arch/um/sys-x86_64/vdso/vma.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * Copyright (C) 2011 Richard Weinberger <richrd@nod.at> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/slab.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <asm/page.h> -#include <linux/init.h> - -unsigned int __read_mostly vdso_enabled = 1; -unsigned long um_vdso_addr; - -extern unsigned long task_size; -extern char vdso_start[], vdso_end[]; - -static struct page **vdsop; - -static int __init init_vdso(void) -{ - struct page *um_vdso; - - BUG_ON(vdso_end - vdso_start > PAGE_SIZE); - - um_vdso_addr = task_size - PAGE_SIZE; - - vdsop = kmalloc(GFP_KERNEL, sizeof(struct page *)); - if (!vdsop) - goto oom; - - um_vdso = alloc_page(GFP_KERNEL); - if (!um_vdso) { - kfree(vdsop); - - goto oom; - } - - copy_page(page_address(um_vdso), vdso_start); - *vdsop = um_vdso; - - return 0; - -oom: - printk(KERN_ERR "Cannot allocate vdso\n"); - vdso_enabled = 0; - - return -ENOMEM; -} -subsys_initcall(init_vdso); - -int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) -{ - int err; - struct mm_struct *mm = current->mm; - - if (!vdso_enabled) - return 0; - - down_write(&mm->mmap_sem); - - err = install_special_mapping(mm, um_vdso_addr, PAGE_SIZE, - VM_READ|VM_EXEC| - VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC| - VM_ALWAYSDUMP, - vdsop); - - up_write(&mm->mmap_sem); - - return err; -} |
