2 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
9 #include <asm/unistd.h>
10 #include "sysdep/ptrace.h"
11 #include "sigcontext.h"
12 #include "ptrace_user.h"
14 #include "user_util.h"
15 #include "kern_util.h"
19 void do_sigtrap(void *task)
21 UPT_SYSCALL_NR(TASK_REGS(task)) = -1;
24 void do_syscall(void *task, int pid, int local_using_sysemu)
26 unsigned long proc_regs[FRAME_SIZE];
28 if(ptrace_getregs(pid, proc_regs) < 0)
29 tracer_panic("Couldn't read registers");
31 UPT_SYSCALL_NR(TASK_REGS(task)) = PT_SYSCALL_NR(proc_regs);
34 UPT_ORIGGPR2(TASK_REGS(task)) = REGS_ORIGGPR2(proc_regs);
37 if(((unsigned long *) PT_IP(proc_regs) >= &_stext) &&
38 ((unsigned long *) PT_IP(proc_regs) <= &_etext))
39 tracer_panic("I'm tracing myself and I can't get out");
41 /* advanced sysemu mode set syscall number to -1 automatically */
42 if (local_using_sysemu==2)
45 /* syscall number -1 in sysemu skips syscall restarting in host */
46 if(ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_NR_OFFSET,
47 local_using_sysemu ? -1 : __NR_getpid) < 0)
48 tracer_panic("do_syscall : Nullifying syscall failed, "
53 * Overrides for Emacs so that we follow Linus's tabbing style.
54 * Emacs will notice this stuff at the end of the file and automatically
55 * adjust the settings for this buffer only. This must remain at the end
57 * ---------------------------------------------------------------------------
59 * c-file-style: "linux"