66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/*
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* Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
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* Licensed under the GPL
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*/
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#ifndef __SYSDEP_STUB_H
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#define __SYSDEP_STUB_H
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#include <asm/ptrace.h>
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#include <asm/unistd.h>
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extern void stub_segv_handler(int sig);
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extern void stub_clone_handler(void);
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#define STUB_SYSCALL_RET EAX
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#define STUB_MMAP_NR __NR_mmap2
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#define MMAP_OFFSET(o) ((o) >> PAGE_SHIFT)
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static inline long stub_syscall2(long syscall, long arg1, long arg2)
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{
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long ret;
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__asm__("movl %0, %%ecx; " : : "g" (arg2) : "%ecx");
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__asm__("movl %0, %%ebx; " : : "g" (arg1) : "%ebx");
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__asm__("movl %0, %%eax; " : : "g" (syscall) : "%eax");
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__asm__("int $0x80;" : : : "%eax");
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__asm__ __volatile__("movl %%eax, %0; " : "=g" (ret) :);
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return(ret);
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}
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static inline long stub_syscall3(long syscall, long arg1, long arg2, long arg3)
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{
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__asm__("movl %0, %%edx; " : : "g" (arg3) : "%edx");
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return(stub_syscall2(syscall, arg1, arg2));
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}
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static inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3,
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long arg4)
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{
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__asm__("movl %0, %%esi; " : : "g" (arg4) : "%esi");
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return(stub_syscall3(syscall, arg1, arg2, arg3));
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}
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static inline long stub_syscall6(long syscall, long arg1, long arg2, long arg3,
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long arg4, long arg5, long arg6)
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{
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long ret;
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__asm__("movl %0, %%eax; " : : "g" (syscall) : "%eax");
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__asm__("movl %0, %%ebx; " : : "g" (arg1) : "%ebx");
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__asm__("movl %0, %%ecx; " : : "g" (arg2) : "%ecx");
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__asm__("movl %0, %%edx; " : : "g" (arg3) : "%edx");
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__asm__("movl %0, %%esi; " : : "g" (arg4) : "%esi");
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__asm__("movl %0, %%edi; " : : "g" (arg5) : "%edi");
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__asm__ __volatile__("pushl %%ebp ; movl %1, %%ebp; "
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"int $0x80; popl %%ebp ; "
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"movl %%eax, %0; " : "=g" (ret) : "g" (arg6) : "%eax");
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return(ret);
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}
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static inline void trap_myself(void)
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{
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__asm("int3");
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}
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#endif
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