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Name	Size	Permission
aux_syscalls.stp	3.03 KB	-rw-r--r--
nd_syscalls.stp	7.43 KB	-rw-r--r--
syscalls.stp	7.14 KB	-rw-r--r--

Code Editor : aux_syscalls.stp

# arch-specific requests of ptrace ___________________________
# = like tapset/x86_64/syscalls.stp but without PTRACE_ARCH_PRCTL
#
%{
#ifndef PTRACE_SYSEMU
# define PTRACE_SYSEMU 31
#endif
#ifndef PTRACE_SYSEMU_SINGLESTEP
# define PTRACE_SYSEMU_SINGLESTEP 32
#endif
#ifndef PTRACE_SINGLEBLOCK
# define PTRACE_SINGLEBLOCK 33
#endif

// Get _stp_val_array and _stp_lookup_* definitions.
#include "linux/syscalls-common.h"

static const _stp_val_array const _stp_arch_ptrace_request_list[] = {
	V(PTRACE_GETREGS),
	V(PTRACE_SETREGS),
	V(PTRACE_GETFPREGS),
	V(PTRACE_SETFPREGS),
	V(PTRACE_GETFPXREGS),
	V(PTRACE_SETFPXREGS),
	V(PTRACE_OLDSETOPTIONS),
	V(PTRACE_GET_THREAD_AREA),
	V(PTRACE_SET_THREAD_AREA),
	V(PTRACE_SYSEMU),
	V(PTRACE_SYSEMU_SINGLESTEP),
	V(PTRACE_SINGLEBLOCK),
	{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:string(request:long, pid:long, addr:long,
				    data:long)
{
	if (request == %{ /* pure */ PTRACE_GETREGS %}
	    || request == %{ /* pure */ PTRACE_SETREGS %}
	    || request == %{ /* pure */ PTRACE_GETFPREGS %}
	    || request == %{ /* pure */ PTRACE_SETFPREGS %}
	    || request == %{ /* pure */ PTRACE_GETFPXREGS %}
	    || request == %{ /* pure */ PTRACE_SETFPXREGS %})
		return sprintf("%s, %d, %#x, %p",
			       __arch_ptrace_request_str(request), pid,
			       addr, data)
	if (request == %{ /* pure */ PTRACE_SYSEMU %}
	    || request == %{ /* pure */ PTRACE_SYSEMU_SINGLESTEP %}
	    || request == %{ /* pure */ PTRACE_SINGLEBLOCK %})
		return sprintf("%s, %d, %#x, %s",
			       __arch_ptrace_request_str(request), pid,
			       addr, _signal_name (data))
	if (request == %{ /* pure */ PTRACE_OLDSETOPTIONS %})
		return sprintf("PTRACE_OLDSETOPTIONS, %d, %#x, %s", pid,
			       addr, _ptrace_options_str(data))
	if (request == %{ /* pure */ PTRACE_GET_THREAD_AREA %}
	    || request == %{ /* pure */ PTRACE_SET_THREAD_AREA %})
		return sprintf("%s, %d, %d, %p", 
			       __arch_ptrace_request_str(request), pid,
			       __int32(addr), data)
}

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

%{
#include <asm/ldt.h>
%}

function _struct_user_desc_u:string(uaddr:long)
%{ /* pure */
	struct user_desc ud;
	char *ptr = (char *)(unsigned long)STAP_ARG_uaddr;
	if (ptr == NULL)
		strlcpy (STAP_RETVALUE, "NULL", MAXSTRINGLEN);
	else
	{
		if (_stp_copy_from_user((char*)&ud, ptr,
		    sizeof(struct user_desc)) == 0)
		{
			snprintf(STAP_RETVALUE, MAXSTRINGLEN,
			         "{entry_number=%u, base_addr=%lu, limit=%u, seg_32bit=%u, contents=%u, "
			         "read_exec_only=%u, limit_in_pages=%u, seg_not_present=%u, useable=%u}",
			         ud.entry_number, (unsigned long)ud.base_addr, ud.limit, ud.seg_32bit, ud.contents,
			         ud.read_exec_only, ud.limit_in_pages, ud.seg_not_present, ud.useable);
		}
		else
		{
			snprintf(STAP_RETVALUE, MAXSTRINGLEN, "0x%lx",
			         (unsigned long)ptr);
		}
	}
%}

${this.title}

Code Editor : aux_syscalls.stp