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#include <sys/cdefs.h>		#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");		__FBSDID("$FreeBSD$");

#include "opt_cpu.h"		#include "opt_cpu.h"

#include <sys/param.h>		#include <sys/param.h>
#include <sys/systm.h>		#include <sys/systm.h>
		#include <sys/lock.h>
#include <sys/malloc.h>		#include <sys/malloc.h>
		#include <sys/mutex.h>
#include <sys/proc.h>		#include <sys/proc.h>
#include <sys/ptrace.h>		#include <sys/ptrace.h>
#include <machine/frame.h>		#include <machine/frame.h>
#include <machine/md_var.h>		#include <machine/md_var.h>
#include <machine/pcb.h>		#include <machine/pcb.h>

static int		static int
cpu_ptrace_xstate(struct thread td, int req, void addr, int data)		cpu_ptrace_xstate(struct thread td, int req, void addr, int data)
▲ Show 20 Lines • Show All 144 Lines • ▼ Show 20 Lines	case PT_SETGSBASE:
}		}
break;		break;

default:		default:
return (EINVAL);		return (EINVAL);
}		}

return (error);		return (error);
		}

		int
		ptrace_set_pc(struct thread *td, u_long addr)
		{

		td->td_frame->tf_eip = addr;
		return (0);
		}

		int
		ptrace_single_step(struct thread *td)
		{

		PROC_LOCK_ASSERT(td->td_proc, MA_OWNED);
		if ((td->td_frame->tf_eflags & PSL_T) == 0) {
		td->td_frame->tf_eflags \|= PSL_T;
		td->td_dbgflags \|= TDB_STEP;
		}
		return (0);
		}

		int
		ptrace_clear_single_step(struct thread *td)
		{

		PROC_LOCK_ASSERT(td->td_proc, MA_OWNED);
		td->td_frame->tf_eflags &= ~PSL_T;
		td->td_dbgflags &= ~TDB_STEP;
		return (0);
}		}