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um: unify ptrace_user.h

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Al Viro 2011-08-18 20:12:19 +01:00 committed by Richard Weinberger
parent a10c95d84c
commit 966e803ab1
9 changed files with 35 additions and 77 deletions
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3
arch/um/include/shared/ptrace_user.h
View file

@ -6,7 +6,8 @@
#ifndef __PTRACE_USER_H__
#define __PTRACE_USER_H__
#include "sysdep/ptrace_user.h"
#include <sys/ptrace.h>
#include <sysdep/ptrace_user.h>
extern int ptrace_getregs(long pid, unsigned long *regs_out);
extern int ptrace_setregs(long pid, unsigned long *regs_in);

3
arch/um/os-Linux/skas/process.c
View file

@ -9,7 +9,6 @@
#include <errno.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/ptrace.h>
#include <sys/wait.h>
#include <asm/unistd.h>
#include "as-layout.h"
@ -162,7 +161,7 @@ static void handle_trap(int pid, struct uml_pt_regs *regs,
if (!local_using_sysemu)
{
err = ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_NR_OFFSET,
err = ptrace(PTRACE_POKEUSER, pid, PT_SYSCALL_NR_OFFSET,
__NR_getpid);
if (err < 0) {
printk(UM_KERN_ERR "handle_trap - nullifying syscall "

9
arch/um/os-Linux/start_up.c
View file

@ -13,7 +13,6 @@
#include <signal.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/ptrace.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <asm/unistd.h>
@ -224,7 +223,7 @@ static void __init check_sysemu(void)
goto fail;
}
n = ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_RET_OFFSET, os_getpid());
n = ptrace(PTRACE_POKEUSER, pid, PT_SYSCALL_RET_OFFSET, os_getpid());
if (n < 0) {
non_fatal("check_sysemu : failed to modify system call "
"return");
@ -260,7 +259,7 @@ static void __init check_sysemu(void)
"doesn't singlestep");
goto fail;
}
n = ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_RET_OFFSET,
n = ptrace(PTRACE_POKEUSER, pid, PT_SYSCALL_RET_OFFSET,
os_getpid());
if (n < 0)
fatal_perror("check_sysemu : failed to modify "
@ -316,10 +315,10 @@ static void __init check_ptrace(void)
fatal("check_ptrace : expected (SIGTRAP|0x80), "
"got status = %d", status);
syscall = ptrace(PTRACE_PEEKUSR, pid, PT_SYSCALL_NR_OFFSET,
syscall = ptrace(PTRACE_PEEKUSER, pid, PT_SYSCALL_NR_OFFSET,
0);
if (syscall == __NR_getpid) {
n = ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_NR_OFFSET,
n = ptrace(PTRACE_POKEUSER, pid, PT_SYSCALL_NR_OFFSET,
__NR_getppid);
if (n < 0)
fatal_perror("check_ptrace : failed to modify "

2
arch/x86/um/ptrace_64.c
View file

@ -46,7 +46,7 @@ static const int reg_offsets[] =
[FS >> 3] = HOST_FS,
[GS >> 3] = HOST_GS,
[EFLAGS >> 3] = HOST_EFLAGS,
[ORIG_RAX >> 3] = HOST_ORIG_RAX,
[ORIG_RAX >> 3] = HOST_ORIG_AX,
};
int putreg(struct task_struct *child, int regno, unsigned long value)

2
arch/x86/um/shared/sysdep/ptrace_64.h
View file

@ -65,7 +65,7 @@
#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_ORIG_RAX(r) ((r)[HOST_ORIG_AX])
#define REGS_SET_SYSCALL_RETURN(r, res) REGS_RAX(r) = (res)

26
arch/x86/um/shared/sysdep/ptrace_user.h
View file

@ -1,5 +1,27 @@
#include <generated/user_constants.h>
#define PT_OFFSET(r) ((r) * sizeof(long))
#define PT_SYSCALL_NR(regs) ((regs)[HOST_ORIG_AX])
#define PT_SYSCALL_NR_OFFSET PT_OFFSET(HOST_ORIG_AX)
#define PT_SYSCALL_RET_OFFSET PT_OFFSET(HOST_AX)
#define REGS_IP_INDEX HOST_IP
#define REGS_SP_INDEX HOST_SP
#ifdef __i386__
#include "ptrace_user_32.h"
#define FP_SIZE ((HOST_FPX_SIZE > HOST_FP_SIZE) ? HOST_FPX_SIZE : HOST_FP_SIZE)
#else
#include "ptrace_user_64.h"
#define FP_SIZE HOST_FP_SIZE
/*
* 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
#endif

26
arch/x86/um/shared/sysdep/ptrace_user_32.h
View file

@ -1,26 +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 <generated/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_RET_OFFSET PT_OFFSET(EAX)
#define REGS_IP_INDEX EIP
#define REGS_SP_INDEX UESP
#define FP_SIZE ((HOST_FPX_SIZE > HOST_FP_SIZE) ? HOST_FPX_SIZE : HOST_FP_SIZE)
#endif

38
arch/x86/um/shared/sysdep/ptrace_user_64.h
View file

@ -1,38 +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 <generated/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_RET_OFFSET (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
#define REGS_IP_INDEX PT_INDEX(RIP)
#define REGS_SP_INDEX PT_INDEX(RSP)
#define FP_SIZE (HOST_FP_SIZE)
#endif

3
arch/x86/um/user-offsets.c
View file

@ -36,6 +36,7 @@ void foo(void)
DEFINE(HOST_FS, FS);
DEFINE(HOST_ES, ES);
DEFINE(HOST_GS, GS);
DEFINE(HOST_ORIG_AX, ORIG_EAX);
#else
DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
DEFINE_LONGS(HOST_BX, RBX);
@ -53,7 +54,7 @@ void foo(void)
DEFINE_LONGS(HOST_R13, R13);
DEFINE_LONGS(HOST_R14, R14);
DEFINE_LONGS(HOST_R15, R15);
DEFINE_LONGS(HOST_ORIG_RAX, ORIG_RAX);
DEFINE_LONGS(HOST_ORIG_AX, ORIG_RAX);
DEFINE_LONGS(HOST_CS, CS);
DEFINE_LONGS(HOST_SS, SS);
DEFINE_LONGS(HOST_EFLAGS, EFLAGS);