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uml: throw out CHOOSE_MODE 

The next stage after removing code which depends on CONFIG_MODE_TT is removing
the CHOOSE_MODE abstraction, which provided both compile-time and run-time
branching to either tt-mode or skas-mode code.

This patch removes choose-mode.h and all inclusions of it, and replaces all
CHOOSE_MODE invocations with the skas branch.  This leaves a number of trivial
functions which will be dealt with in a later patch.

There are some changes in the uaccess and tls support which go somewhat beyond
this and eliminate some of the now-redundant functions.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Jeff Dike 2007-10-16 01:26:56 -07:00 committed by Linus Torvalds
parent 4c9e138513
commit 6aa802ce6a
36 changed files with 130 additions and 310 deletions
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3
arch/um/drivers/chan_user.c
View File

@ -264,8 +264,7 @@ void register_winch(int fd, struct tty_struct *tty)
return;
pid = tcgetpgrp(fd);
if (!CHOOSE_MODE_PROC(is_tracer_winch, is_skas_winch, pid, fd, tty) &&
(pid == -1)) {
if (!is_skas_winch(pid, fd, tty) && (pid == -1)) {
thread = winch_tramp(fd, tty, &thread_fd, &stack);
if (thread < 0)
return;

3
arch/um/drivers/harddog_user.c
View File

@ -9,7 +9,6 @@
#include "user.h"
#include "mconsole.h"
#include "os.h"
#include "choose-mode.h"
#include "mode.h"
struct dog_data {
@ -64,7 +63,7 @@ int start_watchdog(int *in_fd_ret, int *out_fd_ret, char *sock)
}
else {
/* XXX The os_getpid() is not SMP correct */
sprintf(pid_buf, "%d", CHOOSE_MODE(tracing_pid, os_getpid()));
sprintf(pid_buf, "%d", os_getpid());
args = pid_args;
}

1
arch/um/drivers/mconsole_kern.c
View File

@ -33,7 +33,6 @@
#include "init.h"
#include "os.h"
#include "irq_kern.h"
#include "choose-mode.h"
static int do_unlink_socket(struct notifier_block *notifier,
unsigned long what, void *data)

20
arch/um/include/choose-mode.h
View File

@ -1,20 +0,0 @@
/*
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __CHOOSE_MODE_H__
#define __CHOOSE_MODE_H__
#include "uml-config.h"
#define CHOOSE_MODE(tt, skas) (skas)
#define CHOOSE_MODE_PROC(tt, skas, args...) \
CHOOSE_MODE(tt(args), skas(args))
#ifndef __CHOOSE_MODE
#define __CHOOSE_MODE(tt, skas) CHOOSE_MODE(tt, skas)
#endif
#endif

21
arch/um/include/skas/uaccess-skas.h
View File

@ -1,21 +0,0 @@
/*
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __SKAS_UACCESS_H
#define __SKAS_UACCESS_H
#include "asm/errno.h"
/* No SKAS-specific checking. */
#define access_ok_skas(type, addr, size) 0
extern int copy_from_user_skas(void *to, const void __user *from, int n);
extern int copy_to_user_skas(void __user *to, const void *from, int n);
extern int strncpy_from_user_skas(char *dst, const char __user *src, int count);
extern int __clear_user_skas(void __user *mem, int len);
extern int clear_user_skas(void __user *mem, int len);
extern int strnlen_user_skas(const void __user *str, int len);
#endif

67
arch/um/include/sysdep-i386/ptrace.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
@ -9,7 +9,6 @@
#include "uml-config.h"
#include "user_constants.h"
#include "sysdep/faultinfo.h"
#include "choose-mode.h"
#define MAX_REG_NR (UM_FRAME_SIZE / sizeof(unsigned long))
#define MAX_REG_OFFSET (UM_FRAME_SIZE)
@ -67,40 +66,23 @@ union uml_pt_regs {
#define EMPTY_UML_PT_REGS { }
#define UPT_SC(r) ((r)->tt.sc)
#define UPT_IP(r) \
__CHOOSE_MODE(SC_IP(UPT_SC(r)), REGS_IP((r)->skas.regs))
#define UPT_SP(r) \
__CHOOSE_MODE(SC_SP(UPT_SC(r)), REGS_SP((r)->skas.regs))
#define UPT_EFLAGS(r) \
__CHOOSE_MODE(SC_EFLAGS(UPT_SC(r)), REGS_EFLAGS((r)->skas.regs))
#define UPT_EAX(r) \
__CHOOSE_MODE(SC_EAX(UPT_SC(r)), REGS_EAX((r)->skas.regs))
#define UPT_EBX(r) \
__CHOOSE_MODE(SC_EBX(UPT_SC(r)), REGS_EBX((r)->skas.regs))
#define UPT_ECX(r) \
__CHOOSE_MODE(SC_ECX(UPT_SC(r)), REGS_ECX((r)->skas.regs))
#define UPT_EDX(r) \
__CHOOSE_MODE(SC_EDX(UPT_SC(r)), REGS_EDX((r)->skas.regs))
#define UPT_ESI(r) \
__CHOOSE_MODE(SC_ESI(UPT_SC(r)), REGS_ESI((r)->skas.regs))
#define UPT_EDI(r) \
__CHOOSE_MODE(SC_EDI(UPT_SC(r)), REGS_EDI((r)->skas.regs))
#define UPT_EBP(r) \
__CHOOSE_MODE(SC_EBP(UPT_SC(r)), REGS_EBP((r)->skas.regs))
#define UPT_ORIG_EAX(r) \
__CHOOSE_MODE((r)->tt.syscall, (r)->skas.syscall)
#define UPT_CS(r) \
__CHOOSE_MODE(SC_CS(UPT_SC(r)), REGS_CS((r)->skas.regs))
#define UPT_SS(r) \
__CHOOSE_MODE(SC_SS(UPT_SC(r)), REGS_SS((r)->skas.regs))
#define UPT_DS(r) \
__CHOOSE_MODE(SC_DS(UPT_SC(r)), REGS_DS((r)->skas.regs))
#define UPT_ES(r) \
__CHOOSE_MODE(SC_ES(UPT_SC(r)), REGS_ES((r)->skas.regs))
#define UPT_FS(r) \
__CHOOSE_MODE(SC_FS(UPT_SC(r)), REGS_FS((r)->skas.regs))
#define UPT_GS(r) \
__CHOOSE_MODE(SC_GS(UPT_SC(r)), REGS_GS((r)->skas.regs))
#define UPT_IP(r) REGS_IP((r)->skas.regs)
#define UPT_SP(r) REGS_SP((r)->skas.regs)
#define UPT_EFLAGS(r) REGS_EFLAGS((r)->skas.regs)
#define UPT_EAX(r) REGS_EAX((r)->skas.regs)
#define UPT_EBX(r) REGS_EBX((r)->skas.regs)
#define UPT_ECX(r) REGS_ECX((r)->skas.regs)
#define UPT_EDX(r) REGS_EDX((r)->skas.regs)
#define UPT_ESI(r) REGS_ESI((r)->skas.regs)
#define UPT_EDI(r) REGS_EDI((r)->skas.regs)
#define UPT_EBP(r) REGS_EBP((r)->skas.regs)
#define UPT_ORIG_EAX(r) ((r)->skas.syscall)
#define UPT_CS(r) REGS_CS((r)->skas.regs)
#define UPT_SS(r) REGS_SS((r)->skas.regs)
#define UPT_DS(r) REGS_DS((r)->skas.regs)
#define UPT_ES(r) REGS_ES((r)->skas.regs)
#define UPT_FS(r) REGS_FS((r)->skas.regs)
#define UPT_GS(r) REGS_GS((r)->skas.regs)
#define UPT_SYSCALL_ARG1(r) UPT_EBX(r)
#define UPT_SYSCALL_ARG2(r) UPT_ECX(r)
@ -111,8 +93,7 @@ union uml_pt_regs {
extern int user_context(unsigned long sp);
#define UPT_IS_USER(r) \
CHOOSE_MODE(user_context(UPT_SP(r)), (r)->skas.is_user)
#define UPT_IS_USER(r) ((r)->skas.is_user)
struct syscall_args {
unsigned long args[6];
@ -181,18 +162,14 @@ struct syscall_args {
} while (0)
#define UPT_SET_SYSCALL_RETURN(r, res) \
CHOOSE_MODE(SC_SET_SYSCALL_RETURN(UPT_SC(r), (res)), \
REGS_SET_SYSCALL_RETURN((r)->skas.regs, (res)))
REGS_SET_SYSCALL_RETURN((r)->skas.regs, (res))
#define UPT_RESTART_SYSCALL(r) \
CHOOSE_MODE(SC_RESTART_SYSCALL(UPT_SC(r)), \
REGS_RESTART_SYSCALL((r)->skas.regs))
#define UPT_RESTART_SYSCALL(r) REGS_RESTART_SYSCALL((r)->skas.regs)
#define UPT_ORIG_SYSCALL(r) UPT_EAX(r)
#define UPT_SYSCALL_NR(r) UPT_ORIG_EAX(r)
#define UPT_SYSCALL_RET(r) UPT_EAX(r)
#define UPT_FAULTINFO(r) \
CHOOSE_MODE((&(r)->tt.faultinfo), (&(r)->skas.faultinfo))
#define UPT_FAULTINFO(r) (&(r)->skas.faultinfo)
#endif

79
arch/um/include/sysdep-x86_64/ptrace.h
View File

@ -84,8 +84,6 @@
#define REGS_ERR(r) ((r)->fault_type)
#include "choose-mode.h"
/* XXX */
union uml_pt_regs {
struct skas_regs {
@ -99,48 +97,45 @@ union uml_pt_regs {
#define EMPTY_UML_PT_REGS { }
#define UPT_RBX(r) __CHOOSE_MODE(SC_RBX(UPT_SC(r)), REGS_RBX((r)->skas.regs))
#define UPT_RCX(r) __CHOOSE_MODE(SC_RCX(UPT_SC(r)), REGS_RCX((r)->skas.regs))
#define UPT_RDX(r) __CHOOSE_MODE(SC_RDX(UPT_SC(r)), REGS_RDX((r)->skas.regs))
#define UPT_RSI(r) __CHOOSE_MODE(SC_RSI(UPT_SC(r)), REGS_RSI((r)->skas.regs))
#define UPT_RDI(r) __CHOOSE_MODE(SC_RDI(UPT_SC(r)), REGS_RDI((r)->skas.regs))
#define UPT_RBP(r) __CHOOSE_MODE(SC_RBP(UPT_SC(r)), REGS_RBP((r)->skas.regs))
#define UPT_RAX(r) __CHOOSE_MODE(SC_RAX(UPT_SC(r)), REGS_RAX((r)->skas.regs))
#define UPT_R8(r) __CHOOSE_MODE(SC_R8(UPT_SC(r)), REGS_R8((r)->skas.regs))
#define UPT_R9(r) __CHOOSE_MODE(SC_R9(UPT_SC(r)), REGS_R9((r)->skas.regs))
#define UPT_R10(r) __CHOOSE_MODE(SC_R10(UPT_SC(r)), REGS_R10((r)->skas.regs))
#define UPT_R11(r) __CHOOSE_MODE(SC_R11(UPT_SC(r)), REGS_R11((r)->skas.regs))
#define UPT_R12(r) __CHOOSE_MODE(SC_R12(UPT_SC(r)), REGS_R12((r)->skas.regs))
#define UPT_R13(r) __CHOOSE_MODE(SC_R13(UPT_SC(r)), REGS_R13((r)->skas.regs))
#define UPT_R14(r) __CHOOSE_MODE(SC_R14(UPT_SC(r)), REGS_R14((r)->skas.regs))
#define UPT_R15(r) __CHOOSE_MODE(SC_R15(UPT_SC(r)), REGS_R15((r)->skas.regs))
#define UPT_CS(r) __CHOOSE_MODE(SC_CS(UPT_SC(r)), REGS_CS((r)->skas.regs))
#define UPT_RBX(r) REGS_RBX((r)->skas.regs)
#define UPT_RCX(r) REGS_RCX((r)->skas.regs)
#define UPT_RDX(r) REGS_RDX((r)->skas.regs)
#define UPT_RSI(r) REGS_RSI((r)->skas.regs)
#define UPT_RDI(r) REGS_RDI((r)->skas.regs)
#define UPT_RBP(r) REGS_RBP((r)->skas.regs)
#define UPT_RAX(r) REGS_RAX((r)->skas.regs)
#define UPT_R8(r) REGS_R8((r)->skas.regs)
#define UPT_R9(r) REGS_R9((r)->skas.regs)
#define UPT_R10(r) REGS_R10((r)->skas.regs)
#define UPT_R11(r) REGS_R11((r)->skas.regs)
#define UPT_R12(r) REGS_R12((r)->skas.regs)
#define UPT_R13(r) REGS_R13((r)->skas.regs)
#define UPT_R14(r) REGS_R14((r)->skas.regs)
#define UPT_R15(r) REGS_R15((r)->skas.regs)
#define UPT_CS(r) REGS_CS((r)->skas.regs)
#define UPT_FS_BASE(r) \
__CHOOSE_MODE(SC_FS_BASE(UPT_SC(r)), REGS_FS_BASE((r)->skas.regs))
#define UPT_FS(r) __CHOOSE_MODE(SC_FS(UPT_SC(r)), REGS_FS((r)->skas.regs))
REGS_FS_BASE((r)->skas.regs)
#define UPT_FS(r) REGS_FS((r)->skas.regs)
#define UPT_GS_BASE(r) \
__CHOOSE_MODE(SC_GS_BASE(UPT_SC(r)), REGS_GS_BASE((r)->skas.regs))
#define UPT_GS(r) __CHOOSE_MODE(SC_GS(UPT_SC(r)), REGS_GS((r)->skas.regs))
#define UPT_DS(r) __CHOOSE_MODE(SC_DS(UPT_SC(r)), REGS_DS((r)->skas.regs))
#define UPT_ES(r) __CHOOSE_MODE(SC_ES(UPT_SC(r)), REGS_ES((r)->skas.regs))
#define UPT_CS(r) __CHOOSE_MODE(SC_CS(UPT_SC(r)), REGS_CS((r)->skas.regs))
#define UPT_SS(r) __CHOOSE_MODE(SC_SS(UPT_SC(r)), REGS_SS((r)->skas.regs))
#define UPT_ORIG_RAX(r) \
__CHOOSE_MODE((r)->tt.orig_rax, REGS_ORIG_RAX((r)->skas.regs))
REGS_GS_BASE((r)->skas.regs)
#define UPT_GS(r) REGS_GS((r)->skas.regs)
#define UPT_DS(r) REGS_DS((r)->skas.regs)
#define UPT_ES(r) REGS_ES((r)->skas.regs)
#define UPT_CS(r) REGS_CS((r)->skas.regs)
#define UPT_SS(r) REGS_SS((r)->skas.regs)
#define UPT_ORIG_RAX(r) REGS_ORIG_RAX((r)->skas.regs)
#define UPT_IP(r) __CHOOSE_MODE(SC_IP(UPT_SC(r)), REGS_IP((r)->skas.regs))
#define UPT_SP(r) __CHOOSE_MODE(SC_SP(UPT_SC(r)), REGS_SP((r)->skas.regs))
#define UPT_IP(r) REGS_IP((r)->skas.regs)
#define UPT_SP(r) REGS_SP((r)->skas.regs)
#define UPT_EFLAGS(r) \
__CHOOSE_MODE(SC_EFLAGS(UPT_SC(r)), REGS_EFLAGS((r)->skas.regs))
#define UPT_EFLAGS(r) REGS_EFLAGS((r)->skas.regs)
#define UPT_SC(r) ((r)->tt.sc)
#define UPT_SYSCALL_NR(r) __CHOOSE_MODE((r)->tt.syscall, (r)->skas.syscall)
#define UPT_SYSCALL_NR(r) ((r)->skas.syscall)
#define UPT_SYSCALL_RET(r) UPT_RAX(r)
extern int user_context(unsigned long sp);
#define UPT_IS_USER(r) \
CHOOSE_MODE(user_context(UPT_SP(r)), (r)->skas.is_user)
#define UPT_IS_USER(r) ((r)->skas.is_user)
#define UPT_SYSCALL_ARG1(r) UPT_RDI(r)
#define UPT_SYSCALL_ARG2(r) UPT_RSI(r)
@ -237,18 +232,12 @@ struct syscall_args {
})
#define UPT_SET_SYSCALL_RETURN(r, res) \
CHOOSE_MODE(SC_SET_SYSCALL_RETURN(UPT_SC(r), (res)), \
REGS_SET_SYSCALL_RETURN((r)->skas.regs, (res)))
REGS_SET_SYSCALL_RETURN((r)->skas.regs, (res))
#define UPT_RESTART_SYSCALL(r) \
CHOOSE_MODE(SC_RESTART_SYSCALL(UPT_SC(r)), \
REGS_RESTART_SYSCALL((r)->skas.regs))
#define UPT_RESTART_SYSCALL(r) REGS_RESTART_SYSCALL((r)->skas.regs)
#define UPT_SEGV_IS_FIXABLE(r) \
CHOOSE_MODE(SC_SEGV_IS_FIXABLE(UPT_SC(r)), \
REGS_SEGV_IS_FIXABLE(&r->skas))
#define UPT_SEGV_IS_FIXABLE(r) REGS_SEGV_IS_FIXABLE(&r->skas)
#define UPT_FAULTINFO(r) \
CHOOSE_MODE((&(r)->tt.faultinfo), (&(r)->skas.faultinfo))
#define UPT_FAULTINFO(r) (&(r)->skas.faultinfo)
#endif

1
arch/um/include/um_mmu.h
View File

@ -7,7 +7,6 @@
#define __ARCH_UM_MMU_H
#include "uml-config.h"
#include "choose-mode.h"
#include "mmu-skas.h"
typedef union mm_context {

39
arch/um/include/um_uaccess.h
View File

@ -6,8 +6,6 @@
#ifndef __ARCH_UM_UACCESS_H
#define __ARCH_UM_UACCESS_H
#include "choose-mode.h"
#include "uaccess-skas.h"
#include "asm/fixmap.h"
#define __under_task_size(addr, size) \
@ -27,20 +25,10 @@
(__addr_range_nowrap(addr, size) && \
(__under_task_size(addr, size) || \
__access_ok_vsyscall(type, addr, size) || \
segment_eq(get_fs(), KERNEL_DS) || \
CHOOSE_MODE_PROC(access_ok_tt, access_ok_skas, type, addr, size)))
segment_eq(get_fs(), KERNEL_DS)))
static inline int copy_from_user(void *to, const void __user *from, int n)
{
return(CHOOSE_MODE_PROC(copy_from_user_tt, copy_from_user_skas, to,
from, n));
}
static inline int copy_to_user(void __user *to, const void *from, int n)
{
return(CHOOSE_MODE_PROC(copy_to_user_tt, copy_to_user_skas, to,
from, n));
}
extern int copy_from_user(void *to, const void __user *from, int n);
extern int copy_to_user(void __user *to, const void *from, int n);
/*
* strncpy_from_user: - Copy a NUL terminated string from userspace.
@ -61,11 +49,7 @@ static inline int copy_to_user(void __user *to, const void *from, int n)
* and returns @count.
*/
static inline int strncpy_from_user(char *dst, const char __user *src, int count)
{
return(CHOOSE_MODE_PROC(strncpy_from_user_tt, strncpy_from_user_skas,
dst, src, count));
}
extern int strncpy_from_user(char *dst, const char __user *src, int count);
/*
* __clear_user: - Zero a block of memory in user space, with less checking.
@ -78,10 +62,7 @@ static inline int strncpy_from_user(char *dst, const char __user *src, int count
* Returns number of bytes that could not be cleared.
* On success, this will be zero.
*/
static inline int __clear_user(void *mem, int len)
{
return(CHOOSE_MODE_PROC(__clear_user_tt, __clear_user_skas, mem, len));
}
extern int __clear_user(void __user *mem, int len);
/*
* clear_user: - Zero a block of memory in user space.
@ -93,10 +74,7 @@ static inline int __clear_user(void *mem, int len)
* Returns number of bytes that could not be cleared.
* On success, this will be zero.
*/
static inline int clear_user(void __user *mem, int len)
{
return(CHOOSE_MODE_PROC(clear_user_tt, clear_user_skas, mem, len));
}
extern int clear_user(void __user *mem, int len);
/*
* strlen_user: - Get the size of a string in user space.
@ -109,10 +87,7 @@ static inline int clear_user(void __user *mem, int len)
* On exception, returns 0.
* If the string is too long, returns a value greater than @n.
*/
static inline int strnlen_user(const void __user *str, long len)
{
return(CHOOSE_MODE_PROC(strnlen_user_tt, strnlen_user_skas, str, len));
}
extern int strnlen_user(const void __user *str, int len);
#endif

5
arch/um/kernel/exec.c
View File

@ -18,18 +18,17 @@
#include "irq_user.h"
#include "tlb.h"
#include "os.h"
#include "choose-mode.h"
#include "mode_kern.h"
void flush_thread(void)
{
arch_flush_thread(&current->thread.arch);
CHOOSE_MODE(flush_thread_tt(), flush_thread_skas());
flush_thread_skas();
}
void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
{
CHOOSE_MODE_PROC(start_thread_tt, start_thread_skas, regs, eip, esp);
start_thread_skas(regs, eip, esp);
}
#ifdef CONFIG_TTY_LOG

10
arch/um/kernel/ksyms.c
View File

@ -37,11 +37,11 @@ EXPORT_SYMBOL(um_virt_to_phys);
EXPORT_SYMBOL(handle_page_fault);
EXPORT_SYMBOL(find_iomem);
EXPORT_SYMBOL(strnlen_user_skas);
EXPORT_SYMBOL(strncpy_from_user_skas);
EXPORT_SYMBOL(copy_to_user_skas);
EXPORT_SYMBOL(copy_from_user_skas);
EXPORT_SYMBOL(clear_user_skas);
EXPORT_SYMBOL(strnlen_user);
EXPORT_SYMBOL(strncpy_from_user);
EXPORT_SYMBOL(copy_to_user);
EXPORT_SYMBOL(copy_from_user);
EXPORT_SYMBOL(clear_user);
EXPORT_SYMBOL(uml_strdup);
EXPORT_SYMBOL(os_stat_fd);

2
arch/um/kernel/physmem.c
View File

@ -61,7 +61,7 @@ static unsigned long kmem_top = 0;
unsigned long get_kmem_end(void)
{
if (kmem_top == 0)
kmem_top = CHOOSE_MODE(kmem_end_tt, kmem_end_skas);
kmem_top = kmem_end_skas;
return kmem_top;
}

19
arch/um/kernel/process.c
View File

@ -45,7 +45,6 @@
#include "os.h"
#include "mode.h"
#include "mode_kern.h"
#include "choose-mode.h"
/* This is a per-cpu array. A processor only modifies its entry and it only
* cares about its entry, so it's OK if another processor is modifying its
@ -55,7 +54,7 @@ struct cpu_task cpu_tasks[NR_CPUS] = { [0 ... NR_CPUS - 1] = { -1, NULL } };
static inline int external_pid(struct task_struct *task)
{
return CHOOSE_MODE_PROC(external_pid_tt, external_pid_skas, task);
return external_pid_skas(task);
}
int pid_to_processor_id(int pid)
@ -114,8 +113,8 @@ void *_switch_to(void *prev, void *next, void *last)
set_current(to);
do {
current->thread.saved_task = NULL ;
CHOOSE_MODE_PROC(switch_to_tt, switch_to_skas, prev, next);
current->thread.saved_task = NULL;
switch_to_skas(prev, next);
if(current->thread.saved_task)
show_regs(&(current->thread.regs));
next= current->thread.saved_task;
@ -136,7 +135,7 @@ void interrupt_end(void)
void release_thread(struct task_struct *task)
{
CHOOSE_MODE(release_thread_tt(task), release_thread_skas(task));
release_thread_skas(task);
}
void exit_thread(void)
@ -155,8 +154,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
int ret;
p->thread = (struct thread_struct) INIT_THREAD;
ret = CHOOSE_MODE_PROC(copy_thread_tt, copy_thread_skas, nr,
clone_flags, sp, stack_top, p, regs);
ret = copy_thread_skas(nr, clone_flags, sp, stack_top, p, regs);
if (ret || !current->thread.forking)
goto out;
@ -178,15 +176,12 @@ void initial_thread_cb(void (*proc)(void *), void *arg)
int save_kmalloc_ok = kmalloc_ok;
kmalloc_ok = 0;
CHOOSE_MODE_PROC(initial_thread_cb_tt, initial_thread_cb_skas, proc,
arg);
initial_thread_cb_skas(proc, arg);
kmalloc_ok = save_kmalloc_ok;
}
void default_idle(void)
{
CHOOSE_MODE(uml_idle_timer(), (void) 0);
while(1){
/* endless idle loop with no priority at all */
@ -203,7 +198,7 @@ void default_idle(void)
void cpu_idle(void)
{
CHOOSE_MODE(init_idle_tt(), init_idle_skas());
init_idle_skas();
}
void *um_virt_to_phys(struct task_struct *task, unsigned long addr,

7
arch/um/kernel/reboot.c
View File

@ -10,13 +10,12 @@
#include "kern.h"
#include "os.h"
#include "mode.h"
#include "choose-mode.h"
void (*pm_power_off)(void);
static void kill_off_processes(void)
{
CHOOSE_MODE(kill_off_processes_tt(), kill_off_processes_skas());
kill_off_processes_skas();
}
void uml_cleanup(void)
@ -29,13 +28,13 @@ void uml_cleanup(void)
void machine_restart(char * __unused)
{
uml_cleanup();
CHOOSE_MODE(reboot_tt(), reboot_skas());
reboot_skas();
}
void machine_power_off(void)
{
uml_cleanup();
CHOOSE_MODE(halt_tt(), halt_skas());
halt_skas();
}
void machine_halt(void)

12
arch/um/kernel/skas/uaccess.c
View File

@ -139,7 +139,7 @@ static int copy_chunk_from_user(unsigned long from, int len, void *arg)
return(0);
}
int copy_from_user_skas(void *to, const void __user *from, int n)
int copy_from_user(void *to, const void __user *from, int n)
{
if(segment_eq(get_fs(), KERNEL_DS)){
memcpy(to, (__force void*)from, n);
@ -160,7 +160,7 @@ static int copy_chunk_to_user(unsigned long to, int len, void *arg)
return(0);
}
int copy_to_user_skas(void __user *to, const void *from, int n)
int copy_to_user(void __user *to, const void *from, int n)
{
if(segment_eq(get_fs(), KERNEL_DS)){
memcpy((__force void*)to, from, n);
@ -186,7 +186,7 @@ static int strncpy_chunk_from_user(unsigned long from, int len, void *arg)
return(0);
}
int strncpy_from_user_skas(char *dst, const char __user *src, int count)
int strncpy_from_user(char *dst, const char __user *src, int count)
{
int n;
char *ptr = dst;
@ -212,12 +212,12 @@ static int clear_chunk(unsigned long addr, int len, void *unused)
return(0);
}
int __clear_user_skas(void __user *mem, int len)
int __clear_user(void __user *mem, int len)
{
return(buffer_op((unsigned long) mem, len, 1, clear_chunk, NULL));
}
int clear_user_skas(void __user *mem, int len)
int clear_user(void __user *mem, int len)
{
if(segment_eq(get_fs(), KERNEL_DS)){
memset((__force void*)mem, 0, len);
@ -240,7 +240,7 @@ static int strnlen_chunk(unsigned long str, int len, void *arg)
return(0);
}
int strnlen_user_skas(const void __user *str, int len)
int strnlen_user(const void __user *str, int len)
{
int count = 0, n;

1
arch/um/kernel/syscall.c
View File

@ -21,7 +21,6 @@
#include "kern_util.h"
#include "sysdep/syscalls.h"
#include "mode_kern.h"
#include "choose-mode.h"
/* Unlocked, I don't care if this is a bit off */
int nsyscalls = 0;

4
arch/um/kernel/time.c
View File

@ -181,9 +181,7 @@ void timer_handler(int sig, union uml_pt_regs *regs)
timer_irq(regs);
local_irq_disable();
irq_enter();
update_process_times(CHOOSE_MODE(
(UPT_SC(regs) && user_context(UPT_SP(regs))),
(regs)->skas.is_user));
update_process_times((regs)->skas.is_user);
irq_exit();
local_irq_enable();
}

17
arch/um/kernel/tlb.c
View File

@ -8,7 +8,6 @@
#include "asm/pgalloc.h"
#include "asm/pgtable.h"
#include "asm/tlbflush.h"
#include "choose-mode.h"
#include "mode_kern.h"
#include "as-layout.h"
#include "tlb.h"
@ -378,35 +377,31 @@ void flush_tlb_all(void)
void flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
CHOOSE_MODE_PROC(flush_tlb_kernel_range_tt,
flush_tlb_kernel_range_common, start, end);
flush_tlb_kernel_range_common(start, end);
}
void flush_tlb_kernel_vm(void)
{
CHOOSE_MODE(flush_tlb_kernel_vm_tt(),
flush_tlb_kernel_range_common(start_vm, end_vm));
flush_tlb_kernel_range_common(start_vm, end_vm);
}
void __flush_tlb_one(unsigned long addr)
{
CHOOSE_MODE_PROC(__flush_tlb_one_tt, __flush_tlb_one_skas, addr);
__flush_tlb_one_skas(addr);
}
void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end)
{
CHOOSE_MODE_PROC(flush_tlb_range_tt, flush_tlb_range_skas, vma, start,
end);
flush_tlb_range_skas(vma, start, end);
}
void flush_tlb_mm(struct mm_struct *mm)
{
CHOOSE_MODE_PROC(flush_tlb_mm_tt, flush_tlb_mm_skas, mm);
flush_tlb_mm_skas(mm);
}
void force_flush_all(void)
{
CHOOSE_MODE(force_flush_all_tt(), force_flush_all_skas());
force_flush_all_skas();
}

13
arch/um/kernel/um_arch.c
View File

@ -35,7 +35,6 @@
#include "initrd.h"
#include "init.h"
#include "os.h"
#include "choose-mode.h"
#include "mode_kern.h"
#include "mode.h"
#include "skas.h"
@ -68,8 +67,7 @@ struct cpuinfo_um boot_cpu_data = {
unsigned long thread_saved_pc(struct task_struct *task)
{
return os_process_pc(CHOOSE_MODE_PROC(thread_pid_tt, thread_pid_skas,
task));
return os_process_pc(thread_pid_skas(task));
}
/* Changed in setup_arch, which is called in early boot */
@ -88,7 +86,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
seq_printf(m, "processor\t: %d\n", index);
seq_printf(m, "vendor_id\t: User Mode Linux\n");
seq_printf(m, "model name\t: UML\n");
seq_printf(m, "mode\t\t: %s\n", CHOOSE_MODE("tt", "skas"));
seq_printf(m, "mode\t\t: skas\n");
seq_printf(m, "host\t\t: %s\n", host_info);
seq_printf(m, "bogomips\t: %lu.%02lu\n\n",
loops_per_jiffy/(500000/HZ),
@ -283,8 +281,7 @@ int __init linux_main(int argc, char **argv)
printf("UML running in %s mode\n", mode);
host_task_size = CHOOSE_MODE_PROC(set_task_sizes_tt,
set_task_sizes_skas, &task_size);
host_task_size = set_task_sizes_skas(&task_size);
/*
* Setting up handlers to 'sig_info' struct
@ -292,7 +289,7 @@ int __init linux_main(int argc, char **argv)
os_fill_handlinfo(handlinfo_kern);
brk_start = (unsigned long) sbrk(0);
CHOOSE_MODE_PROC(before_mem_tt, before_mem_skas, brk_start);
before_mem_skas(brk_start);
/* Increase physical memory size for exec-shield users
so they actually get what they asked for. This should
add zero for non-exec shield users */
@ -357,7 +354,7 @@ int __init linux_main(int argc, char **argv)
stack_protections((unsigned long) &init_thread_info);
os_flush_stdout();
return CHOOSE_MODE(start_uml_tt(), start_uml_skas());
return start_uml_skas();
}
extern int uml_exitcode;

5
arch/um/os-Linux/aio.c
View File

@ -320,11 +320,6 @@ static int init_aio(void)
{
int err;
CHOOSE_MODE(({ if(!aio_24){
printk("Disabling 2.6 AIO in tt mode\n");
aio_24 = 1;
} }), (void) 0);
if(!aio_24){
err = init_aio_26();
if(err && (errno == ENOSYS)){

10
arch/um/os-Linux/main.c
View File

@ -19,7 +19,6 @@
#include "user.h"
#include "init.h"
#include "mode.h"
#include "choose-mode.h"
#include "uml-config.h"
#include "os.h"
#include "um_malloc.h"
@ -189,16 +188,13 @@ int __init main(int argc, char **argv, char **envp)
return uml_exitcode;
}
#define CAN_KMALLOC() \
(kmalloc_ok && CHOOSE_MODE((os_getpid() != tracing_pid), 1))
extern void *__real_malloc(int);
void *__wrap_malloc(int size)
{
void *ret;
if(!CAN_KMALLOC())
if(!kmalloc_ok)
return __real_malloc(size);
else if(size <= UM_KERN_PAGE_SIZE)
/* finding contiguous pages can be hard*/
@ -251,11 +247,11 @@ void __wrap_free(void *ptr)
*/
if((addr >= uml_physmem) && (addr < high_physmem)){
if(CAN_KMALLOC())
if(kmalloc_ok)
kfree(ptr);
}
else if((addr >= start_vm) && (addr < end_vm)){
if(CAN_KMALLOC())
if(kmalloc_ok)
vfree(ptr);
}
else __real_free(ptr);

6
arch/um/os-Linux/signal.c
View File

@ -53,8 +53,7 @@ void sig_handler(int sig, struct sigcontext *sc)
block_signals();
CHOOSE_MODE_PROC(sig_handler_common_tt, sig_handler_common_skas,
sig, sc);
sig_handler_common_skas(sig, sc);
set_signals(enabled);
}
@ -257,8 +256,7 @@ void unblock_signals(void)
* back here.
*/
if(save_pending & SIGIO_MASK)
CHOOSE_MODE_PROC(sig_handler_common_tt,
sig_handler_common_skas, SIGIO, NULL);
sig_handler_common_skas(SIGIO, NULL);
if(save_pending & SIGALRM_MASK)
real_alarm_handler(SIGALRM, NULL);

1
arch/um/os-Linux/start_up.c
View File

@ -31,7 +31,6 @@
#include "init.h"
#include "os.h"
#include "uml-config.h"
#include "choose-mode.h"
#include "mode.h"
#include "tempfile.h"
#include "kern_constants.h"

1
arch/um/os-Linux/trap.c
View File

@ -12,7 +12,6 @@
void usr2_handler(int sig, union uml_pt_regs *regs)
{
CHOOSE_MODE(syscall_handler_tt(sig, regs), (void) 0);
}
/* Initialized from linux_main() */

4
arch/um/sys-i386/ldt.c
View File

@ -12,7 +12,6 @@
#include "asm/smp.h"
#include "asm/ldt.h"
#include "asm/unistd.h"
#include "choose-mode.h"
#include "kern.h"
#include "mode_kern.h"
#include "os.h"
@ -506,6 +505,5 @@ void free_ldt(struct mmu_context_skas * mm)
int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount)
{
return CHOOSE_MODE_PROC(do_modify_ldt_tt, do_modify_ldt_skas, func,
ptr, bytecount);
return do_modify_ldt_skas(func, ptr, bytecount);
}

17
arch/um/sys-i386/ptrace.c
View File

@ -230,13 +230,13 @@ static inline unsigned long twd_fxsr_to_i387( struct i387_fxsave_struct *fxsave
static inline int convert_fxsr_to_user(struct _fpstate __user *buf,
struct pt_regs *regs)
{
return(CHOOSE_MODE(convert_fxsr_to_user_tt(buf, regs), 0));
return 0;
}
static inline int convert_fxsr_from_user(struct pt_regs *regs,
struct _fpstate __user *buf)
{
return(CHOOSE_MODE(convert_fxsr_from_user_tt(regs, buf), 0));
return 0;
}
int get_fpregs(unsigned long buf, struct task_struct *child)
@ -261,12 +261,12 @@ int set_fpregs(unsigned long buf, struct task_struct *child)
int get_fpxregs(unsigned long buf, struct task_struct *tsk)
{
return(CHOOSE_MODE(get_fpxregs_tt(buf, tsk), 0));
return 0;
}
int set_fpxregs(unsigned long buf, struct task_struct *tsk)
{
return(CHOOSE_MODE(set_fpxregs_tt(buf, tsk), 0));
return 0;
}
#ifdef notdef
@ -286,16 +286,9 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
}
#endif
static inline void copy_fpu_fxsave(struct pt_regs *regs,
struct user_i387_struct *buf)
{
(void) CHOOSE_MODE(copy_fpu_fxsave_tt(regs, buf), 0);
}
int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu )
{
copy_fpu_fxsave(regs, (struct user_i387_struct *) fpu);
return(1);
return 1;
}
/*

12
arch/um/sys-i386/signal.c
View File

@ -12,7 +12,6 @@
#include "frame_kern.h"
#include "sigcontext.h"
#include "registers.h"
#include "mode.h"
#include "skas.h"
void copy_sc(union uml_pt_regs *regs, void *from)
@ -108,20 +107,13 @@ int copy_sc_to_user_skas(struct sigcontext __user *to, struct _fpstate __user *t
static int copy_sc_from_user(struct pt_regs *to, void __user *from)
{
int ret;
ret = CHOOSE_MODE(copy_sc_from_user_tt(UPT_SC(&to->regs), from,
sizeof(struct _fpstate)),
copy_sc_from_user_skas(to, from));
return ret;
return copy_sc_from_user_skas(to, from);
}
static int copy_sc_to_user(struct sigcontext __user *to, struct _fpstate __user *fp,
struct pt_regs *from, unsigned long sp)
{
return CHOOSE_MODE(copy_sc_to_user_tt(to, fp, UPT_SC(&from->regs),
sizeof(*fp), sp),
copy_sc_to_user_skas(to, fp, from, sp));
return copy_sc_to_user_skas(to, fp, from, sp);
}
static int copy_ucontext_to_user(struct ucontext __user *uc, struct _fpstate __user *fp,

7
arch/um/sys-i386/tls.c
View File

@ -12,7 +12,6 @@
#include "asm/segment.h"
#include "asm/smp.h"
#include "asm/desc.h"
#include "choose-mode.h"
#include "kern.h"
#include "kern_util.h"
#include "mode_kern.h"
@ -28,7 +27,7 @@
static int host_supports_tls = -1;
int host_gdt_entry_tls_min;
int do_set_thread_area_skas(struct user_desc *info)
int do_set_thread_area(struct user_desc *info)
{
int ret;
u32 cpu;
@ -39,7 +38,7 @@ int do_set_thread_area_skas(struct user_desc *info)
return ret;
}
int do_get_thread_area_skas(struct user_desc *info)
int do_get_thread_area(struct user_desc *info)
{
int ret;
u32 cpu;
@ -277,7 +276,7 @@ asmlinkage int sys_set_thread_area(struct user_desc __user *user_desc)
return -EFAULT;
}
ret = CHOOSE_MODE_PROC(do_set_thread_area_tt, do_set_thread_area_skas, &info);
ret = do_set_thread_area(&info);
if (ret)
return ret;
return set_tls_entry(current, &info, idx, 1);

9
arch/um/sys-x86_64/signal.c
View File

@ -12,7 +12,6 @@
#include "asm/sigcontext.h"
#include "asm/ptrace.h"
#include "asm/arch/ucontext.h"
#include "choose-mode.h"
#include "sysdep/ptrace.h"
#include "frame_kern.h"
#include "skas.h"
@ -135,9 +134,7 @@ static int copy_sc_from_user(struct pt_regs *to, void __user *from)
{
int ret;
ret = CHOOSE_MODE(copy_sc_from_user_tt(UPT_SC(&to->regs), from,
sizeof(struct _fpstate)),
copy_sc_from_user_skas(to, from));
ret = copy_sc_from_user_skas(to, from);
return(ret);
}
@ -146,9 +143,7 @@ static int copy_sc_to_user(struct sigcontext __user *to,
struct pt_regs *from, unsigned long mask,
unsigned long sp)
{
return(CHOOSE_MODE(copy_sc_to_user_tt(to, fp, UPT_SC(&from->regs),
sizeof(*fp), sp),
copy_sc_to_user_skas(to, fp, from, mask, sp)));
return copy_sc_to_user_skas(to, fp, from, mask, sp);
}
struct rt_sigframe

4
arch/um/sys-x86_64/syscalls.c
View File

@ -14,7 +14,6 @@
#include "asm/ptrace.h"
#include "asm/unistd.h"
#include "asm/prctl.h" /* XXX This should get the constants from libc */
#include "choose-mode.h"
#include "kern.h"
#include "os.h"
@ -92,8 +91,7 @@ long arch_prctl_skas(struct task_struct *task, int code,
long sys_arch_prctl(int code, unsigned long addr)
{
return CHOOSE_MODE_PROC(arch_prctl_tt, arch_prctl_skas, current, code,
(unsigned long __user *) addr);
return arch_prctl_skas(current, code, (unsigned long __user *) addr);
}
long sys_clone(unsigned long clone_flags, unsigned long newsp,

7
include/asm-um/a.out.h
View File

@ -2,7 +2,6 @@
#define __UM_A_OUT_H
#include "asm/arch/a.out.h"
#include "choose-mode.h"
#undef STACK_TOP
#undef STACK_TOP_MAX
@ -13,10 +12,8 @@ extern unsigned long host_task_size;
#define STACK_ROOM (stacksizelim)
extern int honeypot;
#define STACK_TOP \
CHOOSE_MODE((honeypot ? host_task_size : task_size), task_size)
#define STACK_TOP task_size
#define STACK_TOP_MAX STACK_TOP
#define STACK_TOP_MAX STACK_TOP
#endif

12
include/asm-um/mmu_context.h
View File

@ -9,7 +9,6 @@
#include <asm-generic/mm_hooks.h>
#include "linux/sched.h"
#include "choose-mode.h"
#include "um_mmu.h"
#define get_mmu_context(task) do ; while(0)
@ -30,8 +29,7 @@ static inline void activate_mm(struct mm_struct *old, struct mm_struct *new)
* possible.
*/
if (old != new && (current->flags & PF_BORROWED_MM))
CHOOSE_MODE(force_flush_all(),
switch_mm_skas(&new->context.skas.id));
switch_mm_skas(&new->context.skas.id);
}
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
@ -43,8 +41,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
cpu_clear(cpu, prev->cpu_vm_mask);
cpu_set(cpu, next->cpu_vm_mask);
if(next != &init_mm)
CHOOSE_MODE((void) 0,
switch_mm_skas(&next->context.skas.id));
switch_mm_skas(&next->context.skas.id);
}
}
@ -59,15 +56,14 @@ extern int init_new_context_skas(struct task_struct *task,
static inline int init_new_context(struct task_struct *task,
struct mm_struct *mm)
{
return(CHOOSE_MODE_PROC(init_new_context_tt, init_new_context_skas,
task, mm));
return(init_new_context_skas(task, mm));
}
extern void destroy_context_skas(struct mm_struct *mm);
static inline void destroy_context(struct mm_struct *mm)
{
CHOOSE_MODE((void) 0, destroy_context_skas(mm));
destroy_context_skas(mm);
}
#endif

1
include/asm-um/processor-generic.h
View File

@ -11,7 +11,6 @@ struct pt_regs;
struct task_struct;
#include "asm/ptrace.h"
#include "choose-mode.h"
#include "registers.h"
#include "sysdep/archsetjmp.h"

12
include/asm-um/ptrace-i386.h
View File

@ -12,7 +12,6 @@
#include "sysdep/ptrace.h"
#include "asm/ptrace-generic.h"
#include "asm/host_ldt.h"
#include "choose-mode.h"
#define PT_REGS_EAX(r) UPT_EAX(&(r)->regs)
#define PT_REGS_EBX(r) UPT_EBX(&(r)->regs)
@ -59,15 +58,8 @@ extern int arch_switch_tls_tt(struct task_struct *from, struct task_struct *to);
extern void arch_switch_to_tt(struct task_struct *from, struct task_struct *to);
extern void arch_switch_to_skas(struct task_struct *from, struct task_struct *to);
static inline int do_get_thread_area(struct user_desc *info)
{
return CHOOSE_MODE_PROC(do_get_thread_area_tt, do_get_thread_area_skas, info);
}
static inline int do_set_thread_area(struct user_desc *info)
{
return CHOOSE_MODE_PROC(do_set_thread_area_tt, do_set_thread_area_skas, info);
}
extern int do_get_thread_area_skas(struct user_desc *info);
extern int do_set_thread_area_skas(struct user_desc *info);
struct task_struct;

6
include/asm-um/tlbflush.h
View File

@ -7,7 +7,6 @@
#define __UM_TLBFLUSH_H
#include <linux/mm.h>
#include "choose-mode.h"
/*
* TLB flushing:
@ -31,10 +30,7 @@ extern void flush_tlb_page_skas(struct vm_area_struct *vma,
static inline void flush_tlb_page(struct vm_area_struct *vma,
unsigned long address)
{
address &= PAGE_MASK;
CHOOSE_MODE(flush_tlb_range(vma, address, address + PAGE_SIZE),
flush_tlb_page_skas(vma, address));
flush_tlb_page_skas(vma, address & PAGE_MASK);
}
extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);

2
include/asm-um/uaccess.h
View File

@ -80,7 +80,7 @@
__put_user(x, private_ptr) : -EFAULT); \
})
#define strlen_user(str) strnlen_user(str, ~0UL >> 1)
#define strlen_user(str) strnlen_user(str, ~0U >> 1)
struct exception_table_entry
{