coregrind/pub_core_clreq.h

   1
   2 /*--------------------------------------------------------------------*/
   3 /*--- Internal client requests.                   pub_core_clreq.h ---*/
   4 /*--------------------------------------------------------------------*/
   5
   6 /*
   7    This file is part of Valgrind, a dynamic binary instrumentation
   8    framework.
   9
  10    Copyright (C) 2000-2017 Julian Seward
  11       jseward@acm.org
  12
  13    This program is free software; you can redistribute it and/or
  14    modify it under the terms of the GNU General Public License as
  15    published by the Free Software Foundation; either version 2 of the
  16    License, or (at your option) any later version.
  17
  18    This program is distributed in the hope that it will be useful, but
  19    WITHOUT ANY WARRANTY; without even the implied warranty of
  20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21    General Public License for more details.
  22
  23    You should have received a copy of the GNU General Public License
  24    along with this program; if not, see <http://www.gnu.org/licenses/>.
  25
  26    The GNU General Public License is contained in the file COPYING.
  27 */
  28
  29 #ifndef __PUB_CORE_CLREQ_H
  30 #define __PUB_CORE_CLREQ_H
  31
  32 //--------------------------------------------------------------------
  33 // PURPOSE: This module defined client requests.
  34 //--------------------------------------------------------------------
  35
  36 #include "pub_tool_clreq.h"
  37
  38 // The strange choice of values here is due to historical reasons -- there
  39 // used to be many more internal client requests.
  40 typedef
  41    enum {
  42       /* Denote the finish of freeres_wrapper().  Also causes exit. */
  43       VG_USERREQ__FREERES_DONE = 0x3029,
  44
  45       /* Get the tool's malloc-wrapping functions */
  46       VG_USERREQ__GET_MALLOCFUNCS   = 0x3030,
  47
  48       /* Internal equivalent of VALGRIND_PRINTF_VALIST_BY_REF . */
  49       VG_USERREQ__INTERNAL_PRINTF_VALIST_BY_REF = 0x3103,
  50
  51       /* Add a target for an indirect function redirection. */
  52       VG_USERREQ__ADD_IFUNC_TARGET  = 0x3104,
  53
  54    } Vg_InternalClientRequest;
  55
  56
  57 /* Which freeres functions to run in the freeres_wrapper().
  58    It is possible to run both. */
  59 typedef enum {
  60    /* Run __gnu_cxx::__freeres(). */
  61    VG_RUN__GNU_CXX__FREERES = 1,
  62
  63    /* Run __libc_freeres(). */
  64    VG_RUN__LIBC_FREERES = 2
  65
  66 } Vg_FreeresToRun;
  67
  68 // Function for printing from code within Valgrind, but which runs on the
  69 // sim'd CPU.  Must be a function rather than macros so that va_list can
  70 // be used.
  71
  72 static int VALGRIND_INTERNAL_PRINTF(const char *format, ...)
  73    __attribute__((format(__printf__, 1, 2), __unused__));
  74 static int VALGRIND_INTERNAL_PRINTF(const char *format, ...)
  75 {
  76    unsigned long _qzz_res = 0;
  77    va_list vargs;
  78    va_start(vargs, format);
  79    VALGRIND_DO_CLIENT_REQUEST(
  80       _qzz_res, 0, VG_USERREQ__INTERNAL_PRINTF_VALIST_BY_REF,
  81       (unsigned long)format, (unsigned long)&vargs, 0, 0, 0
  82    );
  83    va_end(vargs);
  84    return _qzz_res;
  85 }
  86
  87
  88 #endif   // __PUB_CORE_CLREQ_H
  89
  90 /*--------------------------------------------------------------------*/
  91 /*--- end                                                          ---*/
  92 /*--------------------------------------------------------------------*/