lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

x86, um: get rid of sysdep symlink

Browse Source 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Al Viro
2008-08-18 21:44:32 -04:00
committed by H. Peter Anvin
parent 17dcf75d3e
commit f5ad6a42b7
41 changed files with 2 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
arch/um/include/shared/sysdep-i386/archsetjmp.h
View File

@@ -1,22 +0,0 @@
/*
* arch/um/include/sysdep-i386/archsetjmp.h
*/
#ifndef _KLIBC_ARCHSETJMP_H
#define _KLIBC_ARCHSETJMP_H
struct __jmp_buf {
unsigned int __ebx;
unsigned int __esp;
unsigned int __ebp;
unsigned int __esi;
unsigned int __edi;
unsigned int __eip;
};
typedef struct __jmp_buf jmp_buf[1];
#define JB_IP __eip
#define JB_SP __esp
#endif /* _SETJMP_H */

9
arch/um/include/shared/sysdep-i386/barrier.h
View File

@@ -1,9 +0,0 @@
#ifndef __SYSDEP_I386_BARRIER_H
#define __SYSDEP_I386_BARRIER_H
/* Copied from include/asm-i386 for use by userspace. i386 has the option
* of using mfence, but I'm just using this, which works everywhere, for now.
*/
#define mb() asm volatile("lock; addl $0,0(%esp)")
#endif

211
arch/um/include/shared/sysdep-i386/checksum.h
View File

@@ -1,211 +0,0 @@
/*
* Licensed under the GPL
*/
#ifndef __UM_SYSDEP_CHECKSUM_H
#define __UM_SYSDEP_CHECKSUM_H
#include "linux/in6.h"
#include "linux/string.h"
/*
* computes the checksum of a memory block at buff, length len,
* and adds in "sum" (32-bit)
*
* returns a 32-bit number suitable for feeding into itself
* or csum_tcpudp_magic
*
* this function must be called with even lengths, except
* for the last fragment, which may be odd
*
* it's best to have buff aligned on a 32-bit boundary
*/
__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);
}
/*
* the same as csum_partial, but copies from src while it
* checksums, and handles user-space pointer exceptions correctly, when needed.
*
* here even more important to align src and dst on a 32-bit (or even
* better 64-bit) boundary
*/
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);
}
/*
* This is a version of ip_compute_csum() optimized for IP headers,
* which always checksum on 4 octet boundaries.
*
* By Jorge Cwik <jorge@laser.satlink.net>, adapted for linux by
* Arnt Gulbrandsen.
*/
static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
{
unsigned int sum;
__asm__ __volatile__(
"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: ;\n"
/* 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;
}
/*
* Fold a partial checksum
*/
static inline __sum16 csum_fold(__wsum sum)
{
__asm__(
"addl %1, %0 ;\n"
"adcl $0xffff, %0 ;\n"
: "=r" (sum)
: "r" ((__force u32)sum << 16),
"0" ((__force u32)sum & 0xffff0000)
);
return (__force __sum16)(~(__force u32)sum >> 16);
}
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));
}
/*
* this routine is used for miscellaneous IP-like checksums, mainly
* in icmp.c
*/
static inline __sum16 ip_compute_csum(const void *buff, int len)
{
return csum_fold (csum_partial(buff, len, 0));
}
#define _HAVE_ARCH_IPV6_CSUM
static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
const struct in6_addr *daddr,
__u32 len, unsigned short proto,
__wsum sum)
{
__asm__(
"addl 0(%1), %0 ;\n"
"adcl 4(%1), %0 ;\n"
"adcl 8(%1), %0 ;\n"
"adcl 12(%1), %0 ;\n"
"adcl 0(%2), %0 ;\n"
"adcl 4(%2), %0 ;\n"
"adcl 8(%2), %0 ;\n"
"adcl 12(%2), %0 ;\n"
"adcl %3, %0 ;\n"
"adcl %4, %0 ;\n"
"adcl $0, %0 ;\n"
: "=&r" (sum)
: "r" (saddr), "r" (daddr),
"r"(htonl(len)), "r"(htonl(proto)), "0"(sum));
return csum_fold(sum);
}
/*
* Copy and checksum to user
*/
#define HAVE_CSUM_COPY_USER
static __inline__ __wsum csum_and_copy_to_user(const void *src,
void __user *dst,
int len, __wsum sum, int *err_ptr)
{
if (access_ok(VERIFY_WRITE, dst, len)) {
if (copy_to_user(dst, src, len)) {
*err_ptr = -EFAULT;
return (__force __wsum)-1;
}
return csum_partial(src, len, sum);
}
if (len)
*err_ptr = -EFAULT;
return (__force __wsum)-1; /* invalid checksum */
}
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

29
arch/um/include/shared/sysdep-i386/faultinfo.h
View File

@@ -1,29 +0,0 @@
/*
* Copyright (C) 2004 Fujitsu Siemens Computers GmbH
* Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
* Licensed under the GPL
*/
#ifndef __FAULTINFO_I386_H
#define __FAULTINFO_I386_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 0
#endif

34
arch/um/include/shared/sysdep-i386/host_ldt.h
View File

@@ -1,34 +0,0 @@
#ifndef __ASM_HOST_LDT_I386_H
#define __ASM_HOST_LDT_I386_H
#include <asm/ldt.h>
/*
* macros stolen from include/asm-i386/desc.h
*/
#define LDT_entry_a(info) \
((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff))
#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) | \
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 )
#endif

21
arch/um/include/shared/sysdep-i386/kernel-offsets.h
View File

@@ -1,21 +0,0 @@
#include <linux/stddef.h>
#include <linux/sched.h>
#include <linux/elf.h>
#include <linux/crypto.h>
#include <asm/mman.h>
#define DEFINE(sym, val) \
asm volatile("\n->" #sym " %0 " #val : : "i" (val))
#define STR(x) #x
#define DEFINE_STR(sym, val) asm volatile("\n->" #sym " " STR(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>
}

171
arch/um/include/shared/sysdep-i386/ptrace.h
View File

@@ -1,171 +0,0 @@
/*
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_I386_PTRACE_H
#define __SYSDEP_I386_PTRACE_H
#include "uml-config.h"
#include "user_constants.h"
#include "sysdep/faultinfo.h"
#define MAX_REG_NR (UM_FRAME_SIZE / sizeof(unsigned long))
#define MAX_REG_OFFSET (UM_FRAME_SIZE)
static inline void update_debugregs(int seq) {}
/* syscall emulation path in ptrace */
#ifndef PTRACE_SYSEMU
#define PTRACE_SYSEMU 31
#endif
void set_using_sysemu(int value);
int get_using_sysemu(void);
extern int sysemu_supported;
#include "skas_ptregs.h"
#define REGS_IP(r) ((r)[HOST_IP])
#define REGS_SP(r) ((r)[HOST_SP])
#define REGS_EFLAGS(r) ((r)[HOST_EFLAGS])
#define REGS_EAX(r) ((r)[HOST_EAX])
#define REGS_EBX(r) ((r)[HOST_EBX])
#define REGS_ECX(r) ((r)[HOST_ECX])
#define REGS_EDX(r) ((r)[HOST_EDX])
#define REGS_ESI(r) ((r)[HOST_ESI])
#define REGS_EDI(r) ((r)[HOST_EDI])
#define REGS_EBP(r) ((r)[HOST_EBP])
#define REGS_CS(r) ((r)[HOST_CS])
#define REGS_SS(r) ((r)[HOST_SS])
#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_SET_SYSCALL_RETURN(r, res) REGS_EAX(r) = (res)
#define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r))
#ifndef PTRACE_SYSEMU_SINGLESTEP
#define PTRACE_SYSEMU_SINGLESTEP 32
#endif
struct uml_pt_regs {
unsigned long gp[MAX_REG_NR];
struct faultinfo faultinfo;
long syscall;
int is_user;
};
#define EMPTY_UML_PT_REGS { }
#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_EAX(r) REGS_EAX((r)->gp)
#define UPT_EBX(r) REGS_EBX((r)->gp)
#define UPT_ECX(r) REGS_ECX((r)->gp)
#define UPT_EDX(r) REGS_EDX((r)->gp)
#define UPT_ESI(r) REGS_ESI((r)->gp)
#define UPT_EDI(r) REGS_EDI((r)->gp)
#define UPT_EBP(r) REGS_EBP((r)->gp)
#define UPT_ORIG_EAX(r) ((r)->syscall)
#define UPT_CS(r) REGS_CS((r)->gp)
#define UPT_SS(r) REGS_SS((r)->gp)
#define UPT_DS(r) REGS_DS((r)->gp)
#define UPT_ES(r) REGS_ES((r)->gp)
#define UPT_FS(r) REGS_FS((r)->gp)
#define UPT_GS(r) REGS_GS((r)->gp)
#define UPT_SYSCALL_ARG1(r) UPT_EBX(r)
#define UPT_SYSCALL_ARG2(r) UPT_ECX(r)
#define UPT_SYSCALL_ARG3(r) UPT_EDX(r)
#define UPT_SYSCALL_ARG4(r) UPT_ESI(r)
#define UPT_SYSCALL_ARG5(r) UPT_EDI(r)
#define UPT_SYSCALL_ARG6(r) UPT_EBP(r)
extern int user_context(unsigned long sp);
#define UPT_IS_USER(r) ((r)->is_user)
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 EIP: val = UPT_IP(regs); break; \
case UESP: val = UPT_SP(regs); break; \
case EAX: val = UPT_EAX(regs); break; \
case EBX: val = UPT_EBX(regs); break; \
case ECX: val = UPT_ECX(regs); break; \
case EDX: val = UPT_EDX(regs); break; \
case ESI: val = UPT_ESI(regs); break; \
case EDI: val = UPT_EDI(regs); break; \
case EBP: val = UPT_EBP(regs); break; \
case ORIG_EAX: val = UPT_ORIG_EAX(regs); break; \
case CS: val = UPT_CS(regs); break; \
case SS: val = UPT_SS(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 EFL: val = UPT_EFLAGS(regs); break; \
default : \
panic("Bad register in UPT_REG : %d\n", reg); \
val = -1; \
} \
val; \
})
#define UPT_SET(regs, reg, val) \
do { \
switch(reg){ \
case EIP: UPT_IP(regs) = val; break; \
case UESP: UPT_SP(regs) = val; break; \
case EAX: UPT_EAX(regs) = val; break; \
case EBX: UPT_EBX(regs) = val; break; \
case ECX: UPT_ECX(regs) = val; break; \
case EDX: UPT_EDX(regs) = val; break; \
case ESI: UPT_ESI(regs) = val; break; \
case EDI: UPT_EDI(regs) = val; break; \
case EBP: UPT_EBP(regs) = val; break; \
case ORIG_EAX: UPT_ORIG_EAX(regs) = val; break; \
case CS: UPT_CS(regs) = val; break; \
case SS: UPT_SS(regs) = val; break; \
case DS: UPT_DS(regs) = val; break; \
case ES: UPT_ES(regs) = val; break; \
case FS: UPT_FS(regs) = val; break; \
case GS: UPT_GS(regs) = val; break; \
case EFL: UPT_EFLAGS(regs) = val; break; \
default : \
panic("Bad register in UPT_SET : %d\n", reg); \
break; \
} \
} while (0)
#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_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) (&(r)->faultinfo)
extern void arch_init_registers(int pid);
#endif

50
arch/um/include/shared/sysdep-i386/ptrace_user.h
View File

@@ -1,50 +0,0 @@
/*
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_I386_PTRACE_USER_H__
#define __SYSDEP_I386_PTRACE_USER_H__
#include <sys/ptrace.h>
#include <linux/ptrace.h>
#include <asm/ptrace.h>
#include "user_constants.h"
#define PT_OFFSET(r) ((r) * sizeof(long))
#define PT_SYSCALL_NR(regs) ((regs)[ORIG_EAX])
#define PT_SYSCALL_NR_OFFSET PT_OFFSET(ORIG_EAX)
#define PT_SYSCALL_ARG1_OFFSET PT_OFFSET(EBX)
#define PT_SYSCALL_ARG2_OFFSET PT_OFFSET(ECX)
#define PT_SYSCALL_ARG3_OFFSET PT_OFFSET(EDX)
#define PT_SYSCALL_ARG4_OFFSET PT_OFFSET(ESI)
#define PT_SYSCALL_ARG5_OFFSET PT_OFFSET(EDI)
#define PT_SYSCALL_ARG6_OFFSET PT_OFFSET(EBP)
#define PT_SYSCALL_RET_OFFSET PT_OFFSET(EAX)
#define REGS_SYSCALL_NR EAX /* This is used before a system call */
#define REGS_SYSCALL_ARG1 EBX
#define REGS_SYSCALL_ARG2 ECX
#define REGS_SYSCALL_ARG3 EDX
#define REGS_SYSCALL_ARG4 ESI
#define REGS_SYSCALL_ARG5 EDI
#define REGS_SYSCALL_ARG6 EBP
#define REGS_IP_INDEX EIP
#define REGS_SP_INDEX UESP
#define PT_IP_OFFSET PT_OFFSET(EIP)
#define PT_IP(regs) ((regs)[EIP])
#define PT_SP_OFFSET PT_OFFSET(UESP)
#define PT_SP(regs) ((regs)[UESP])
#define FP_SIZE ((HOST_FPX_SIZE > HOST_FP_SIZE) ? HOST_FPX_SIZE : HOST_FP_SIZE)
#ifndef FRAME_SIZE
#define FRAME_SIZE (17)
#endif
#endif

44
arch/um/include/shared/sysdep-i386/sc.h
View File

@@ -1,44 +0,0 @@
#ifndef __SYSDEP_I386_SC_H
#define __SYSDEP_I386_SC_H
#include <user_constants.h>
#define SC_OFFSET(sc, field) \
*((unsigned long *) &(((char *) (sc))[HOST_##field]))
#define SC_FP_OFFSET(sc, field) \
*((unsigned long *) &(((char *) (SC_FPSTATE(sc)))[HOST_##field]))
#define SC_FP_OFFSET_PTR(sc, field, type) \
((type *) &(((char *) (SC_FPSTATE(sc)))[HOST_##field]))
#define SC_IP(sc) SC_OFFSET(sc, SC_IP)
#define SC_SP(sc) SC_OFFSET(sc, SC_SP)
#define SC_FS(sc) SC_OFFSET(sc, SC_FS)
#define SC_GS(sc) SC_OFFSET(sc, SC_GS)
#define SC_DS(sc) SC_OFFSET(sc, SC_DS)
#define SC_ES(sc) SC_OFFSET(sc, SC_ES)
#define SC_SS(sc) SC_OFFSET(sc, SC_SS)
#define SC_CS(sc) SC_OFFSET(sc, SC_CS)
#define SC_EFLAGS(sc) SC_OFFSET(sc, SC_EFLAGS)
#define SC_EAX(sc) SC_OFFSET(sc, SC_EAX)
#define SC_EBX(sc) SC_OFFSET(sc, SC_EBX)
#define SC_ECX(sc) SC_OFFSET(sc, SC_ECX)
#define SC_EDX(sc) SC_OFFSET(sc, SC_EDX)
#define SC_EDI(sc) SC_OFFSET(sc, SC_EDI)
#define SC_ESI(sc) SC_OFFSET(sc, SC_ESI)
#define SC_EBP(sc) SC_OFFSET(sc, SC_EBP)
#define SC_TRAPNO(sc) SC_OFFSET(sc, SC_TRAPNO)
#define SC_ERR(sc) SC_OFFSET(sc, SC_ERR)
#define SC_CR2(sc) SC_OFFSET(sc, SC_CR2)
#define SC_FPSTATE(sc) SC_OFFSET(sc, SC_FPSTATE)
#define SC_SIGMASK(sc) SC_OFFSET(sc, SC_SIGMASK)
#define SC_FP_CW(sc) SC_FP_OFFSET(sc, SC_FP_CW)
#define SC_FP_SW(sc) SC_FP_OFFSET(sc, SC_FP_SW)
#define SC_FP_TAG(sc) SC_FP_OFFSET(sc, SC_FP_TAG)
#define SC_FP_IPOFF(sc) SC_FP_OFFSET(sc, SC_FP_IPOFF)
#define SC_FP_CSSEL(sc) SC_FP_OFFSET(sc, SC_FP_CSSEL)
#define SC_FP_DATAOFF(sc) SC_FP_OFFSET(sc, SC_FP_DATAOFF)
#define SC_FP_DATASEL(sc) SC_FP_OFFSET(sc, SC_FP_DATASEL)
#define SC_FP_ST(sc) SC_FP_OFFSET_PTR(sc, SC_FP_ST, struct _fpstate)
#define SC_FXSR_ENV(sc) SC_FP_OFFSET_PTR(sc, SC_FXSR_ENV, void)
#endif

26
arch/um/include/shared/sysdep-i386/sigcontext.h
View File

@@ -1,26 +0,0 @@
/*
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#ifndef __SYS_SIGCONTEXT_I386_H
#define __SYS_SIGCONTEXT_I386_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)
/* SKAS3 has no trap_no on i386, but get_skas_faultinfo() sets it to 0. */
#define SEGV_MAYBE_FIXABLE(fi) ((fi)->trap_no == 0 && ptrace_faultinfo)
#endif

22
arch/um/include/shared/sysdep-i386/skas_ptrace.h
View File

@@ -1,22 +0,0 @@
/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_I386_SKAS_PTRACE_H
#define __SYSDEP_I386_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

102
arch/um/include/shared/sysdep-i386/stub.h
View File

@@ -1,102 +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/ptrace.h>
#include <asm/unistd.h>
#include "as-layout.h"
#include "stub-data.h"
#include "kern_constants.h"
#include "uml-config.h"
extern void stub_segv_handler(int sig);
extern void stub_clone_handler(void);
#define STUB_SYSCALL_RET EAX
#define STUB_MMAP_NR __NR_mmap2
#define MMAP_OFFSET(o) ((o) >> UM_KERN_PAGE_SHIFT)
static inline long stub_syscall0(long syscall)
{
long ret;
__asm__ volatile ("int $0x80" : "=a" (ret) : "0" (syscall));
return ret;
}
static inline long stub_syscall1(long syscall, long arg1)
{
long ret;
__asm__ volatile ("int $0x80" : "=a" (ret) : "0" (syscall), "b" (arg1));
return ret;
}
static inline long stub_syscall2(long syscall, long arg1, long arg2)
{
long ret;
__asm__ volatile ("int $0x80" : "=a" (ret) : "0" (syscall), "b" (arg1),
"c" (arg2));
return ret;
}
static inline long stub_syscall3(long syscall, long arg1, long arg2, long arg3)
{
long ret;
__asm__ volatile ("int $0x80" : "=a" (ret) : "0" (syscall), "b" (arg1),
"c" (arg2), "d" (arg3));
return ret;
}
static inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3,
long arg4)
{
long ret;
__asm__ volatile ("int $0x80" : "=a" (ret) : "0" (syscall), "b" (arg1),
"c" (arg2), "d" (arg3), "S" (arg4));
return ret;
}
static inline long stub_syscall5(long syscall, long arg1, long arg2, long arg3,
long arg4, long arg5)
{
long ret;
__asm__ volatile ("int $0x80" : "=a" (ret) : "0" (syscall), "b" (arg1),
"c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5));
return ret;
}
static inline void trap_myself(void)
{
__asm("int3");
}
static inline void remap_stack(int fd, unsigned long offset)
{
__asm__ volatile ("movl %%eax,%%ebp ; movl %0,%%eax ; int $0x80 ;"
"movl %7, %%ebx ; movl %%eax, (%%ebx)"
: : "g" (STUB_MMAP_NR), "b" (STUB_DATA),
"c" (UM_KERN_PAGE_SIZE),
"d" (PROT_READ | PROT_WRITE),
"S" (MAP_FIXED | MAP_SHARED), "D" (fd),
"a" (offset),
"i" (&((struct stub_data *) STUB_DATA)->err)
: "memory");
}
#endif

26
arch/um/include/shared/sysdep-i386/syscalls.h
View File

@@ -1,26 +0,0 @@
/*
* Copyright (C) 2000 - 2008 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#include "asm/unistd.h"
#include "sysdep/ptrace.h"
typedef long syscall_handler_t(struct pt_regs);
/* Not declared on x86, incompatible declarations on x86_64, so these have
* to go here rather than in sys_call_table.c
*/
extern syscall_handler_t sys_rt_sigaction;
extern syscall_handler_t old_mmap_i386;
extern syscall_handler_t *sys_call_table[];
#define EXECUTE_SYSCALL(syscall, regs) \
((long (*)(struct syscall_args)) \
(*sys_call_table[syscall]))(SYSCALL_ARGS(&regs->regs))
extern long sys_mmap2(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff);

132
arch/um/include/shared/sysdep-i386/system.h
View File

@@ -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

32
arch/um/include/shared/sysdep-i386/tls.h
View File

@@ -1,32 +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;
} user_desc_t;
# else /* __KERNEL__ */
# include <ldt.h>
typedef struct user_desc user_desc_t;
# endif /* __KERNEL__ */
#define GDT_ENTRY_TLS_MIN_I386 6
#define GDT_ENTRY_TLS_MIN_X86_64 12
#endif /* _SYSDEP_TLS_H */

14
arch/um/include/shared/sysdep-i386/vm-flags.h
View File

@@ -1,14 +0,0 @@
/*
* Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
* Licensed under the GPL
*/
#ifndef __VM_FLAGS_I386_H
#define __VM_FLAGS_I386_H
#define VM_DATA_DEFAULT_FLAGS \
(VM_READ | VM_WRITE | \
((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
#endif

26
arch/um/include/shared/sysdep-ia64/ptrace.h
View File

@@ -1,26 +0,0 @@
/*
* Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_IA64_PTRACE_H
#define __SYSDEP_IA64_PTRACE_H
struct sys_pt_regs {
int foo;
};
#define EMPTY_REGS { 0 }
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

20
arch/um/include/shared/sysdep-ia64/sigcontext.h
View File

@@ -1,20 +0,0 @@
/*
* Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_IA64_SIGCONTEXT_H
#define __SYSDEP_IA64_SIGCONTEXT_H
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

22
arch/um/include/shared/sysdep-ia64/skas_ptrace.h
View File

@@ -1,22 +0,0 @@
/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_IA64_SKAS_PTRACE_H
#define __SYSDEP_IA64_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

20
arch/um/include/shared/sysdep-ia64/syscalls.h
View File

@@ -1,20 +0,0 @@
/*
* Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_IA64_SYSCALLS_H
#define __SYSDEP_IA64_SYSCALLS_H
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

103
arch/um/include/shared/sysdep-ppc/ptrace.h
View File

@@ -1,103 +0,0 @@
/*
* Licensed under the GPL
*/
#ifndef __SYS_PTRACE_PPC_H
#define __SYS_PTRACE_PPC_H
#include "linux/types.h"
/* the following taken from <asm-ppc/ptrace.h> */
#ifdef CONFIG_PPC64
#define PPC_REG unsigned long /*long*/
#else
#define PPC_REG unsigned long
#endif
struct sys_pt_regs_s {
PPC_REG gpr[32];
PPC_REG nip;
PPC_REG msr;
PPC_REG orig_gpr3; /* Used for restarting system calls */
PPC_REG ctr;
PPC_REG link;
PPC_REG xer;
PPC_REG ccr;
PPC_REG mq; /* 601 only (not used at present) */
/* Used on APUS to hold IPL value. */
PPC_REG trap; /* Reason for being here */
PPC_REG dar; /* Fault registers */
PPC_REG dsisr;
PPC_REG result; /* Result of a system call */
};
#define NUM_REGS (sizeof(struct sys_pt_regs_s) / sizeof(PPC_REG))
struct sys_pt_regs {
PPC_REG regs[sizeof(struct sys_pt_regs_s) / sizeof(PPC_REG)];
};
#define UM_MAX_REG (PT_FPR0)
#define UM_MAX_REG_OFFSET (UM_MAX_REG * sizeof(PPC_REG))
#define EMPTY_REGS { { [ 0 ... NUM_REGS - 1] = 0 } }
#define UM_REG(r, n) ((r)->regs[n])
#define UM_SYSCALL_RET(r) UM_REG(r, PT_R3)
#define UM_SP(r) UM_REG(r, PT_R1)
#define UM_IP(r) UM_REG(r, PT_NIP)
#define UM_ELF_ZERO(r) UM_REG(r, PT_FPSCR)
#define UM_SYSCALL_NR(r) UM_REG(r, PT_R0)
#define UM_SYSCALL_ARG1(r) UM_REG(r, PT_ORIG_R3)
#define UM_SYSCALL_ARG2(r) UM_REG(r, PT_R4)
#define UM_SYSCALL_ARG3(r) UM_REG(r, PT_R5)
#define UM_SYSCALL_ARG4(r) UM_REG(r, PT_R6)
#define UM_SYSCALL_ARG5(r) UM_REG(r, PT_R7)
#define UM_SYSCALL_ARG6(r) UM_REG(r, PT_R8)
#define UM_SYSCALL_NR_OFFSET (PT_R0 * sizeof(PPC_REG))
#define UM_SYSCALL_RET_OFFSET (PT_R3 * sizeof(PPC_REG))
#define UM_SYSCALL_ARG1_OFFSET (PT_R3 * sizeof(PPC_REG))
#define UM_SYSCALL_ARG2_OFFSET (PT_R4 * sizeof(PPC_REG))
#define UM_SYSCALL_ARG3_OFFSET (PT_R5 * sizeof(PPC_REG))
#define UM_SYSCALL_ARG4_OFFSET (PT_R6 * sizeof(PPC_REG))
#define UM_SYSCALL_ARG5_OFFSET (PT_R7 * sizeof(PPC_REG))
#define UM_SYSCALL_ARG6_OFFSET (PT_R8 * sizeof(PPC_REG))
#define UM_SP_OFFSET (PT_R1 * sizeof(PPC_REG))
#define UM_IP_OFFSET (PT_NIP * sizeof(PPC_REG))
#define UM_ELF_ZERO_OFFSET (PT_R3 * sizeof(PPC_REG))
#define UM_SET_SYSCALL_RETURN(_regs, result) \
do { \
if (result < 0) { \
(_regs)->regs[PT_CCR] |= 0x10000000; \
UM_SYSCALL_RET((_regs)) = -result; \
} else { \
UM_SYSCALL_RET((_regs)) = result; \
} \
} while(0)
extern void shove_aux_table(unsigned long sp);
#define UM_FIX_EXEC_STACK(sp) shove_aux_table(sp);
/* These aren't actually defined. The undefs are just to make sure
* everyone's clear on the concept.
*/
#undef UML_HAVE_GETREGS
#undef UML_HAVE_GETFPREGS
#undef UML_HAVE_SETREGS
#undef UML_HAVE_SETFPREGS
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

62
arch/um/include/shared/sysdep-ppc/sigcontext.h
View File

@@ -1,62 +0,0 @@
/*
* Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __SYS_SIGCONTEXT_PPC_H
#define __SYS_SIGCONTEXT_PPC_H
#define DSISR_WRITE 0x02000000
#define SC_FAULT_ADDR(sc) ({ \
struct sigcontext *_sc = (sc); \
long retval = -1; \
switch (_sc->regs->trap) { \
case 0x300: \
/* data exception */ \
retval = _sc->regs->dar; \
break; \
case 0x400: \
/* instruction exception */ \
retval = _sc->regs->nip; \
break; \
default: \
panic("SC_FAULT_ADDR: unhandled trap type\n"); \
} \
retval; \
})
#define SC_FAULT_WRITE(sc) ({ \
struct sigcontext *_sc = (sc); \
long retval = -1; \
switch (_sc->regs->trap) { \
case 0x300: \
/* data exception */ \
retval = !!(_sc->regs->dsisr & DSISR_WRITE); \
break; \
case 0x400: \
/* instruction exception: not a write */ \
retval = 0; \
break; \
default: \
panic("SC_FAULT_ADDR: unhandled trap type\n"); \
} \
retval; \
})
#define SC_IP(sc) ((sc)->regs->nip)
#define SC_SP(sc) ((sc)->regs->gpr[1])
#define SEGV_IS_FIXABLE(sc) (1)
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

22
arch/um/include/shared/sysdep-ppc/skas_ptrace.h
View File

@@ -1,22 +0,0 @@
/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_PPC_SKAS_PTRACE_H
#define __SYSDEP_PPC_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

53
arch/um/include/shared/sysdep-ppc/syscalls.h
View File

@@ -1,53 +0,0 @@
/*
* Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
typedef long syscall_handler_t(unsigned long arg1, unsigned long arg2,
unsigned long arg3, unsigned long arg4,
unsigned long arg5, unsigned long arg6);
#define EXECUTE_SYSCALL(syscall, regs) \
(*sys_call_table[syscall])(UM_SYSCALL_ARG1(&regs), \
UM_SYSCALL_ARG2(&regs), \
UM_SYSCALL_ARG3(&regs), \
UM_SYSCALL_ARG4(&regs), \
UM_SYSCALL_ARG5(&regs), \
UM_SYSCALL_ARG6(&regs))
extern syscall_handler_t sys_mincore;
extern syscall_handler_t sys_madvise;
/* old_mmap needs the correct prototype since syscall_kern.c includes
* this file.
*/
int old_mmap(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long offset);
#define ARCH_SYSCALLS \
[ __NR_modify_ldt ] = sys_ni_syscall, \
[ __NR_pciconfig_read ] = sys_ni_syscall, \
[ __NR_pciconfig_write ] = sys_ni_syscall, \
[ __NR_pciconfig_iobase ] = sys_ni_syscall, \
[ __NR_pivot_root ] = sys_ni_syscall, \
[ __NR_multiplexer ] = sys_ni_syscall, \
[ __NR_mmap ] = old_mmap, \
[ __NR_madvise ] = sys_madvise, \
[ __NR_mincore ] = sys_mincore, \
[ __NR_iopl ] = (syscall_handler_t *) sys_ni_syscall, \
[ __NR_utimes ] = (syscall_handler_t *) sys_utimes, \
[ __NR_fadvise64 ] = (syscall_handler_t *) sys_fadvise64,
#define LAST_ARCH_SYSCALL __NR_fadvise64
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

24
arch/um/include/shared/sysdep-x86_64/archsetjmp.h
View File

@@ -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 */

7
arch/um/include/shared/sysdep-x86_64/barrier.h
View File

@@ -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

144
arch/um/include/shared/sysdep-x86_64/checksum.h
View File

@@ -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

29
arch/um/include/shared/sysdep-x86_64/faultinfo.h
View File

@@ -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

38
arch/um/include/shared/sysdep-x86_64/host_ldt.h
View File

@@ -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

23
arch/um/include/shared/sysdep-x86_64/kernel-offsets.h
View File

@@ -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>
}

240
arch/um/include/shared/sysdep-x86_64/ptrace.h
View File

@@ -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 "uml-config.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];
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

77
arch/um/include/shared/sysdep-x86_64/ptrace_user.h
View File

@@ -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

45
arch/um/include/shared/sysdep-x86_64/sc.h
View File

@@ -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

27
arch/um/include/shared/sysdep-x86_64/sigcontext.h
View File

@@ -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

22
arch/um/include/shared/sysdep-x86_64/skas_ptrace.h
View File

@@ -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

108
arch/um/include/shared/sysdep-x86_64/stub.h
View File

@@ -1,108 +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"
#include "uml-config.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

33
arch/um/include/shared/sysdep-x86_64/syscalls.h
View File

@@ -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(&regs->regs), \
UPT_SYSCALL_ARG2(&regs->regs), \
UPT_SYSCALL_ARG3(&regs->regs), \
UPT_SYSCALL_ARG4(&regs->regs), \
UPT_SYSCALL_ARG5(&regs->regs), \
UPT_SYSCALL_ARG6(&regs->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

132
arch/um/include/shared/sysdep-x86_64/system.h
View File

@@ -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

29
arch/um/include/shared/sysdep-x86_64/tls.h
View File

@@ -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 */

33
arch/um/include/shared/sysdep-x86_64/vm-flags.h
View File

@@ -1,33 +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_FLAGS (VM_GROWSDOWN | VM_READ | VM_WRITE | \
VM_EXEC | VM_MAYREAD | VM_MAYWRITE | \
VM_MAYEXEC)
extern unsigned long vm_stack_flags, vm_stack_flags32;
extern unsigned long vm_data_default_flags, vm_data_default_flags32;
extern unsigned long vm_force_exec32;
#ifdef TIF_IA32
#define VM_DATA_DEFAULT_FLAGS \
(test_thread_flag(TIF_IA32) ? vm_data_default_flags32 : \
vm_data_default_flags)
#define VM_STACK_DEFAULT_FLAGS \
(test_thread_flag(TIF_IA32) ? vm_stack_flags32 : vm_stack_flags)
#endif
#define VM_DATA_DEFAULT_FLAGS vm_data_default_flags
#define VM_STACK_DEFAULT_FLAGS vm_stack_flags
#endif