/*
* Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_STUB_H
#define __SYSDEP_STUB_H
#include <asm/ptrace.h>
#include <asm/unistd.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) >> PAGE_SHIFT)
static inline long stub_syscall2(long syscall, long arg1, long arg2)
{
long ret;
__asm__("movl %0, %%ecx; " : : "g" (arg2) : "%ecx");
__asm__("movl %0, %%ebx; " : : "g" (arg1) : "%ebx");
__asm__("movl %0, %%eax; " : : "g" (syscall) : "%eax");
__asm__("int $0x80;" : : : "%eax");
__asm__ __volatile__("movl %%eax, %0; " : "=g" (ret) :);
return(ret);
}
static inline long stub_syscall3(long syscall, long arg1, long arg2, long arg3)
{
__asm__("movl %0, %%edx; " : : "g" (arg3) : "%edx");
return(stub_syscall2(syscall, arg1, arg2));
}
static inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3,
long arg4)
{
__asm__("movl %0, %%esi; " : : "g" (arg4) : "%esi");
return(stub_syscall3(syscall, arg1, arg2, arg3));
}
static inline long stub_syscall6(long syscall, long arg1, long arg2, long arg3,
long arg4, long arg5, long arg6)
{
long ret;
__asm__("movl %0, %%eax; " : : "g" (syscall) : "%eax");
__asm__("movl %0, %%ebx; " : : "g" (arg1) : "%ebx");
__asm__("movl %0, %%ecx; " : : "g" (arg2) : "%ecx");
__asm__("movl %0, %%edx; " : : "g" (arg3) : "%edx");
__asm__("movl %0, %%esi; " : : "g" (arg4) : "%esi");
__asm__("movl %0, %%edi; " : : "g" (arg5) : "%edi");
__asm__ __volatile__("pushl %%ebp ; movl %1, %%ebp; "
"int $0x80; popl %%ebp ; "
"movl %%eax, %0; " : "=g" (ret) : "g" (arg6) : "%eax");
return(ret);
}
static inline void trap_myself(void)
{
__asm("int3");
}
#endif
