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# arch-specific requests of ptrace ___________________________
#
%{
// Get _stp_val_array and _stp_lookup_* definitions.
#include "linux/syscalls-common.h"

static const _stp_val_array _stp_arch_ptrace_request_list[] = {
	V(PTRACE_SINGLEBLOCK),
	V(PTRACE_OLD_GETSIGINFO),
	V(PTRACE_OLD_SETSIGINFO),
	V(PTRACE_GETREGS),
	V(PTRACE_SETREGS),
	V(PTRACE_OLDSETOPTIONS),
	{0, NULL}
};
%}

function __arch_ptrace_request_str:string(request:long)
%{ /* pure */
	_stp_lookup_str(_stp_arch_ptrace_request_list,
			(unsigned long)STAP_ARG_request, STAP_RETVALUE,
			MAXSTRINGLEN);
%}

function _arch_ptrace_argstr(request, pid, addr, data)
{
	if (request == @const("PTRACE_SINGLEBLOCK"))
		return sprintf("PTRACE_SINGLEBLOCK, %d, %#x, %s", pid,
			       addr, _signal_name (data))
	if (request == @const("PTRACE_GETREGS")
	    || request == @const("PTRACE_SETREGS")
	    || request == @const("PTRACE_OLD_GETSIGINFO")
	    || request == @const("PTRACE_OLD_SETSIGINFO"))
		return sprintf("%s, %d, %#x, %p",
			       __arch_ptrace_request_str(request), pid,
			       addr, data)
	if (request == @const("PTRACE_OLDSETOPTIONS"))
		return sprintf("PTRACE_OLDSETOPTIONS, %d, %#x, %s", pid,
			       addr, _ptrace_options_str(data))
}

function _ptrace_return_arch_prctl_addr:long(request:long, addr:long, data:long)
{
	return 0
}

# arch-specific pipe() syscall support
function _ia64_pipe0:long() %{ /* pure */
	STAP_RETVALUE = CONTEXT->kregs ? CONTEXT->kregs->r8 : 0;
%}
function _ia64_pipe1:long() %{ /* pure */
	STAP_RETVALUE = _stp_current_pt_regs()->r9;
%}