1024598e40c84666cc311a42c256bbf880db3ac99sewardj 2024598e40c84666cc311a42c256bbf880db3ac99sewardj/*--------------------------------------------------------------------*/ 3024598e40c84666cc311a42c256bbf880db3ac99sewardj/*--- Ptrcheck: a pointer-use checker. pc_intercepts.c ---*/ 4024598e40c84666cc311a42c256bbf880db3ac99sewardj/*--------------------------------------------------------------------*/ 5024598e40c84666cc311a42c256bbf880db3ac99sewardj 6024598e40c84666cc311a42c256bbf880db3ac99sewardj/* 7024598e40c84666cc311a42c256bbf880db3ac99sewardj This file is part of Ptrcheck, a Valgrind tool for checking pointer 8024598e40c84666cc311a42c256bbf880db3ac99sewardj use in programs. 9024598e40c84666cc311a42c256bbf880db3ac99sewardj 100f157ddb404bcde7815a1c5bf2d7e41c114f3d73sewardj Copyright (C) 2003-2013 Nicholas Nethercote 11024598e40c84666cc311a42c256bbf880db3ac99sewardj njn@valgrind.org 12024598e40c84666cc311a42c256bbf880db3ac99sewardj 13024598e40c84666cc311a42c256bbf880db3ac99sewardj This program is free software; you can redistribute it and/or 14024598e40c84666cc311a42c256bbf880db3ac99sewardj modify it under the terms of the GNU General Public License as 15024598e40c84666cc311a42c256bbf880db3ac99sewardj published by the Free Software Foundation; either version 2 of the 16024598e40c84666cc311a42c256bbf880db3ac99sewardj License, or (at your option) any later version. 17024598e40c84666cc311a42c256bbf880db3ac99sewardj 18024598e40c84666cc311a42c256bbf880db3ac99sewardj This program is distributed in the hope that it will be useful, but 19024598e40c84666cc311a42c256bbf880db3ac99sewardj WITHOUT ANY WARRANTY; without even the implied warranty of 20024598e40c84666cc311a42c256bbf880db3ac99sewardj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 21024598e40c84666cc311a42c256bbf880db3ac99sewardj General Public License for more details. 22024598e40c84666cc311a42c256bbf880db3ac99sewardj 23024598e40c84666cc311a42c256bbf880db3ac99sewardj You should have received a copy of the GNU General Public License 24024598e40c84666cc311a42c256bbf880db3ac99sewardj along with this program; if not, write to the Free Software 25024598e40c84666cc311a42c256bbf880db3ac99sewardj Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 26024598e40c84666cc311a42c256bbf880db3ac99sewardj 02111-1307, USA. 27024598e40c84666cc311a42c256bbf880db3ac99sewardj 28024598e40c84666cc311a42c256bbf880db3ac99sewardj The GNU General Public License is contained in the file COPYING. 29024598e40c84666cc311a42c256bbf880db3ac99sewardj*/ 30024598e40c84666cc311a42c256bbf880db3ac99sewardj 31024598e40c84666cc311a42c256bbf880db3ac99sewardj/* Nothing actually in here. However it appears this file is needed 32024598e40c84666cc311a42c256bbf880db3ac99sewardj to make malloc intercepting work. (jrs, 2 july 08 -- not sure about 33024598e40c84666cc311a42c256bbf880db3ac99sewardj that). 34024598e40c84666cc311a42c256bbf880db3ac99sewardj*/ 35024598e40c84666cc311a42c256bbf880db3ac99sewardj 36024598e40c84666cc311a42c256bbf880db3ac99sewardj#include "pub_tool_basics.h" 37024598e40c84666cc311a42c256bbf880db3ac99sewardj#include "pub_tool_hashtable.h" 38024598e40c84666cc311a42c256bbf880db3ac99sewardj#include "pub_tool_redir.h" 39024598e40c84666cc311a42c256bbf880db3ac99sewardj#include "pub_tool_tooliface.h" 401a046d5a3c34f924b648cc22c01f0a8e02ca221eflorian#include "pub_tool_clreq.h" 41024598e40c84666cc311a42c256bbf880db3ac99sewardj 42024598e40c84666cc311a42c256bbf880db3ac99sewardj 43024598e40c84666cc311a42c256bbf880db3ac99sewardj/* The following intercepts are copied verbatim from 44dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj memcheck/mc_replace_strmem.c. If you copy more in, please keep 45dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj them in the same order as in mc_replace_strmem.c. */ 46024598e40c84666cc311a42c256bbf880db3ac99sewardj 47024598e40c84666cc311a42c256bbf880db3ac99sewardj 48da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#define STRRCHR(soname, fnname) \ 49da387f2a63296760a87ce4b929fe7f95c52567bbsewardj char* VG_REPLACE_FUNCTION_ZU(soname,fnname)( const char* s, int c ); \ 50da387f2a63296760a87ce4b929fe7f95c52567bbsewardj char* VG_REPLACE_FUNCTION_ZU(soname,fnname)( const char* s, int c ) \ 51da387f2a63296760a87ce4b929fe7f95c52567bbsewardj { \ 52654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian HChar ch = (HChar)c; \ 53654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian const HChar* p = s; \ 54654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian const HChar* last = NULL; \ 55da387f2a63296760a87ce4b929fe7f95c52567bbsewardj while (True) { \ 56da387f2a63296760a87ce4b929fe7f95c52567bbsewardj if (*p == ch) last = p; \ 5770a5de1d6c1a5c74b91b564b0ead8ae8a460173cflorian if (*p == 0) return CONST_CAST(HChar *,last); \ 58da387f2a63296760a87ce4b929fe7f95c52567bbsewardj p++; \ 59da387f2a63296760a87ce4b929fe7f95c52567bbsewardj } \ 60da387f2a63296760a87ce4b929fe7f95c52567bbsewardj } 61da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 62da387f2a63296760a87ce4b929fe7f95c52567bbsewardj// Apparently rindex() is the same thing as strrchr() 63da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRRCHR(VG_Z_LIBC_SONAME, strrchr) 64da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRRCHR(VG_Z_LIBC_SONAME, rindex) 65da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#if defined(VGO_linux) 66da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRRCHR(VG_Z_LIBC_SONAME, __GI_strrchr) 67da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRRCHR(VG_Z_LD_LINUX_SO_2, rindex) 68da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#elif defined(VGO_darwin) 69da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRRCHR(VG_Z_DYLD, strrchr) 70da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRRCHR(VG_Z_DYLD, rindex) 71da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#endif 72da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 73da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 74da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#define STRCHR(soname, fnname) \ 75da387f2a63296760a87ce4b929fe7f95c52567bbsewardj char* VG_REPLACE_FUNCTION_ZU(soname,fnname) ( const char* s, int c ); \ 76da387f2a63296760a87ce4b929fe7f95c52567bbsewardj char* VG_REPLACE_FUNCTION_ZU(soname,fnname) ( const char* s, int c ) \ 77da387f2a63296760a87ce4b929fe7f95c52567bbsewardj { \ 78654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian HChar ch = (HChar)c ; \ 79654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian const HChar* p = s; \ 80da387f2a63296760a87ce4b929fe7f95c52567bbsewardj while (True) { \ 8170a5de1d6c1a5c74b91b564b0ead8ae8a460173cflorian if (*p == ch) return CONST_CAST(HChar *,p); \ 82da387f2a63296760a87ce4b929fe7f95c52567bbsewardj if (*p == 0) return NULL; \ 83da387f2a63296760a87ce4b929fe7f95c52567bbsewardj p++; \ 84da387f2a63296760a87ce4b929fe7f95c52567bbsewardj } \ 85da387f2a63296760a87ce4b929fe7f95c52567bbsewardj } 86da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 87da387f2a63296760a87ce4b929fe7f95c52567bbsewardj// Apparently index() is the same thing as strchr() 88da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRCHR(VG_Z_LIBC_SONAME, strchr) 89da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRCHR(VG_Z_LIBC_SONAME, index) 90da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#if defined(VGO_linux) 91da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRCHR(VG_Z_LIBC_SONAME, __GI_strchr) 92da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRCHR(VG_Z_LD_LINUX_SO_2, strchr) 93da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRCHR(VG_Z_LD_LINUX_SO_2, index) 94da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRCHR(VG_Z_LD_LINUX_X86_64_SO_2, strchr) 95da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRCHR(VG_Z_LD_LINUX_X86_64_SO_2, index) 96da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#elif defined(VGO_darwin) 97da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRCHR(VG_Z_DYLD, strchr) 98da387f2a63296760a87ce4b929fe7f95c52567bbsewardjSTRCHR(VG_Z_DYLD, index) 99da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#endif 100da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 101da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 1027e98c03c14ced31df09fa665ba3151ef9e551272sewardj#define STRNLEN(soname, fnname) \ 1037e98c03c14ced31df09fa665ba3151ef9e551272sewardj SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname) ( const char* str, SizeT n ); \ 1047e98c03c14ced31df09fa665ba3151ef9e551272sewardj SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname) ( const char* str, SizeT n ) \ 1057e98c03c14ced31df09fa665ba3151ef9e551272sewardj { \ 1067e98c03c14ced31df09fa665ba3151ef9e551272sewardj SizeT i = 0; \ 1077e98c03c14ced31df09fa665ba3151ef9e551272sewardj while (i < n && str[i] != 0) i++; \ 1087e98c03c14ced31df09fa665ba3151ef9e551272sewardj return i; \ 1097e98c03c14ced31df09fa665ba3151ef9e551272sewardj } 1107e98c03c14ced31df09fa665ba3151ef9e551272sewardj 111e61546621e9bca129420399d7c552f8f63c93509njnSTRNLEN(VG_Z_LIBC_SONAME, strnlen) 1127e98c03c14ced31df09fa665ba3151ef9e551272sewardj 1137e98c03c14ced31df09fa665ba3151ef9e551272sewardj 114dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj// Note that this replacement often doesn't get used because gcc inlines 115dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj// calls to strlen() with its own built-in version. This can be very 116dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj// confusing if you aren't expecting it. Other small functions in this file 117dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj// may also be inline by gcc. 118dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj#define STRLEN(soname, fnname) \ 119dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname)( const char* str ); \ 120dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj SizeT VG_REPLACE_FUNCTION_ZU(soname,fnname)( const char* str ) \ 121dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj { \ 122dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj SizeT i = 0; \ 123dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj while (str[i] != 0) i++; \ 124dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj return i; \ 125dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj } 126dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj 127e61546621e9bca129420399d7c552f8f63c93509njnSTRLEN(VG_Z_LIBC_SONAME, strlen) 128b4cfbc4e32d5dbf71de9b267ed18462a23d1747fnjn#if defined(VGO_linux) 1294eff11b28c8884c2936deea57fb308df289af473sewardjSTRLEN(VG_Z_LIBC_SONAME, __GI_strlen) 130e61546621e9bca129420399d7c552f8f63c93509njnSTRLEN(VG_Z_LD_LINUX_SO_2, strlen) 131e61546621e9bca129420399d7c552f8f63c93509njnSTRLEN(VG_Z_LD_LINUX_X86_64_SO_2, strlen) 132e61546621e9bca129420399d7c552f8f63c93509njnSTRLEN(VG_Z_LD_SO_1, strlen) 133b4cfbc4e32d5dbf71de9b267ed18462a23d1747fnjn#endif 134dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj 135dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj 1364eff11b28c8884c2936deea57fb308df289af473sewardj#define STRCPY(soname, fnname) \ 1374eff11b28c8884c2936deea57fb308df289af473sewardj char* VG_REPLACE_FUNCTION_ZU(soname, fnname) ( char* dst, const char* src ); \ 1384eff11b28c8884c2936deea57fb308df289af473sewardj char* VG_REPLACE_FUNCTION_ZU(soname, fnname) ( char* dst, const char* src ) \ 1394eff11b28c8884c2936deea57fb308df289af473sewardj { \ 140654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian HChar* dst_orig = dst; \ 1414eff11b28c8884c2936deea57fb308df289af473sewardj \ 1424eff11b28c8884c2936deea57fb308df289af473sewardj while (*src) *dst++ = *src++; \ 1434eff11b28c8884c2936deea57fb308df289af473sewardj *dst = 0; \ 1444eff11b28c8884c2936deea57fb308df289af473sewardj \ 1454eff11b28c8884c2936deea57fb308df289af473sewardj return dst_orig; \ 1464eff11b28c8884c2936deea57fb308df289af473sewardj } 1474eff11b28c8884c2936deea57fb308df289af473sewardj 1484eff11b28c8884c2936deea57fb308df289af473sewardjSTRCPY(VG_Z_LIBC_SONAME, strcpy) 1494eff11b28c8884c2936deea57fb308df289af473sewardj#if defined(VGO_linux) 1504eff11b28c8884c2936deea57fb308df289af473sewardjSTRCPY(VG_Z_LIBC_SONAME, __GI_strcpy) 1514eff11b28c8884c2936deea57fb308df289af473sewardj#elif defined(VGO_darwin) 1524eff11b28c8884c2936deea57fb308df289af473sewardjSTRCPY(VG_Z_DYLD, strcpy) 1534eff11b28c8884c2936deea57fb308df289af473sewardj#endif 1544eff11b28c8884c2936deea57fb308df289af473sewardj 1554eff11b28c8884c2936deea57fb308df289af473sewardj 1564eff11b28c8884c2936deea57fb308df289af473sewardj#define STRNCMP(soname, fnname) \ 1574eff11b28c8884c2936deea57fb308df289af473sewardj int VG_REPLACE_FUNCTION_ZU(soname,fnname) \ 1584eff11b28c8884c2936deea57fb308df289af473sewardj ( const char* s1, const char* s2, SizeT nmax ); \ 1594eff11b28c8884c2936deea57fb308df289af473sewardj int VG_REPLACE_FUNCTION_ZU(soname,fnname) \ 1604eff11b28c8884c2936deea57fb308df289af473sewardj ( const char* s1, const char* s2, SizeT nmax ) \ 1614eff11b28c8884c2936deea57fb308df289af473sewardj { \ 1624eff11b28c8884c2936deea57fb308df289af473sewardj SizeT n = 0; \ 1634eff11b28c8884c2936deea57fb308df289af473sewardj while (True) { \ 1644eff11b28c8884c2936deea57fb308df289af473sewardj if (n >= nmax) return 0; \ 1654eff11b28c8884c2936deea57fb308df289af473sewardj if (*s1 == 0 && *s2 == 0) return 0; \ 1664eff11b28c8884c2936deea57fb308df289af473sewardj if (*s1 == 0) return -1; \ 1674eff11b28c8884c2936deea57fb308df289af473sewardj if (*s2 == 0) return 1; \ 1684eff11b28c8884c2936deea57fb308df289af473sewardj \ 1693e7986312a0ffc7646b0552d4c4ea3744a870e73florian if (*(const unsigned char*)s1 < *(const unsigned char*)s2) return -1; \ 1703e7986312a0ffc7646b0552d4c4ea3744a870e73florian if (*(const unsigned char*)s1 > *(const unsigned char*)s2) return 1; \ 1714eff11b28c8884c2936deea57fb308df289af473sewardj \ 1724eff11b28c8884c2936deea57fb308df289af473sewardj s1++; s2++; n++; \ 1734eff11b28c8884c2936deea57fb308df289af473sewardj } \ 1744eff11b28c8884c2936deea57fb308df289af473sewardj } 1754eff11b28c8884c2936deea57fb308df289af473sewardj 1764eff11b28c8884c2936deea57fb308df289af473sewardjSTRNCMP(VG_Z_LIBC_SONAME, strncmp) 1774eff11b28c8884c2936deea57fb308df289af473sewardj#if defined(VGO_linux) 1784eff11b28c8884c2936deea57fb308df289af473sewardjSTRNCMP(VG_Z_LIBC_SONAME, __GI_strncmp) 1794eff11b28c8884c2936deea57fb308df289af473sewardj#elif defined(VGO_darwin) 1804eff11b28c8884c2936deea57fb308df289af473sewardjSTRNCMP(VG_Z_DYLD, strncmp) 1814eff11b28c8884c2936deea57fb308df289af473sewardj#endif 1824eff11b28c8884c2936deea57fb308df289af473sewardj 1834eff11b28c8884c2936deea57fb308df289af473sewardj 184024598e40c84666cc311a42c256bbf880db3ac99sewardj#define STRCMP(soname, fnname) \ 185024598e40c84666cc311a42c256bbf880db3ac99sewardj int VG_REPLACE_FUNCTION_ZU(soname,fnname) \ 186024598e40c84666cc311a42c256bbf880db3ac99sewardj ( const char* s1, const char* s2 ); \ 187024598e40c84666cc311a42c256bbf880db3ac99sewardj int VG_REPLACE_FUNCTION_ZU(soname,fnname) \ 188024598e40c84666cc311a42c256bbf880db3ac99sewardj ( const char* s1, const char* s2 ) \ 189024598e40c84666cc311a42c256bbf880db3ac99sewardj { \ 190654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian register UChar c1; \ 191654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian register UChar c2; \ 192024598e40c84666cc311a42c256bbf880db3ac99sewardj while (True) { \ 1933e7986312a0ffc7646b0552d4c4ea3744a870e73florian c1 = *(const UChar *)s1; \ 1943e7986312a0ffc7646b0552d4c4ea3744a870e73florian c2 = *(const UChar *)s2; \ 195024598e40c84666cc311a42c256bbf880db3ac99sewardj if (c1 != c2) break; \ 196024598e40c84666cc311a42c256bbf880db3ac99sewardj if (c1 == 0) break; \ 197024598e40c84666cc311a42c256bbf880db3ac99sewardj s1++; s2++; \ 198024598e40c84666cc311a42c256bbf880db3ac99sewardj } \ 199654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian if ((UChar)c1 < (UChar)c2) return -1; \ 200654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian if ((UChar)c1 > (UChar)c2) return 1; \ 201024598e40c84666cc311a42c256bbf880db3ac99sewardj return 0; \ 202024598e40c84666cc311a42c256bbf880db3ac99sewardj } 203024598e40c84666cc311a42c256bbf880db3ac99sewardj 204e61546621e9bca129420399d7c552f8f63c93509njnSTRCMP(VG_Z_LIBC_SONAME, strcmp) 205b4cfbc4e32d5dbf71de9b267ed18462a23d1747fnjn#if defined(VGO_linux) 2064eff11b28c8884c2936deea57fb308df289af473sewardjSTRCMP(VG_Z_LIBC_SONAME, __GI_strcmp) 207e61546621e9bca129420399d7c552f8f63c93509njnSTRCMP(VG_Z_LD_LINUX_X86_64_SO_2, strcmp) 208e61546621e9bca129420399d7c552f8f63c93509njnSTRCMP(VG_Z_LD64_SO_1, strcmp) 209b4cfbc4e32d5dbf71de9b267ed18462a23d1747fnjn#endif 210024598e40c84666cc311a42c256bbf880db3ac99sewardj 211024598e40c84666cc311a42c256bbf880db3ac99sewardj 212da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#define MEMCHR(soname, fnname) \ 213da387f2a63296760a87ce4b929fe7f95c52567bbsewardj void* VG_REPLACE_FUNCTION_ZU(soname,fnname) (const void *s, int c, SizeT n); \ 214da387f2a63296760a87ce4b929fe7f95c52567bbsewardj void* VG_REPLACE_FUNCTION_ZU(soname,fnname) (const void *s, int c, SizeT n) \ 215da387f2a63296760a87ce4b929fe7f95c52567bbsewardj { \ 216da387f2a63296760a87ce4b929fe7f95c52567bbsewardj SizeT i; \ 217da387f2a63296760a87ce4b929fe7f95c52567bbsewardj UChar c0 = (UChar)c; \ 21870a5de1d6c1a5c74b91b564b0ead8ae8a460173cflorian const UChar* p = s; \ 219da387f2a63296760a87ce4b929fe7f95c52567bbsewardj for (i = 0; i < n; i++) \ 22070a5de1d6c1a5c74b91b564b0ead8ae8a460173cflorian if (p[i] == c0) return CONST_CAST(void *,&p[i]); \ 221da387f2a63296760a87ce4b929fe7f95c52567bbsewardj return NULL; \ 222da387f2a63296760a87ce4b929fe7f95c52567bbsewardj } 223da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 224da387f2a63296760a87ce4b929fe7f95c52567bbsewardjMEMCHR(VG_Z_LIBC_SONAME, memchr) 225da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#if defined(VGO_darwin) 226da387f2a63296760a87ce4b929fe7f95c52567bbsewardjMEMCHR(VG_Z_DYLD, memchr) 227da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#endif 228da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 229da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 230024598e40c84666cc311a42c256bbf880db3ac99sewardj#define MEMCPY(soname, fnname) \ 231024598e40c84666cc311a42c256bbf880db3ac99sewardj void* VG_REPLACE_FUNCTION_ZU(soname,fnname) \ 232650cf7698fdd0807a49588376cfefae5289e4488sewardj ( void *dst, const void *src, SizeT len ); \ 233024598e40c84666cc311a42c256bbf880db3ac99sewardj void* VG_REPLACE_FUNCTION_ZU(soname,fnname) \ 234650cf7698fdd0807a49588376cfefae5289e4488sewardj ( void *dst, const void *src, SizeT len ) \ 235024598e40c84666cc311a42c256bbf880db3ac99sewardj { \ 236650cf7698fdd0807a49588376cfefae5289e4488sewardj const Addr WS = sizeof(UWord); /* 8 or 4 */ \ 237650cf7698fdd0807a49588376cfefae5289e4488sewardj const Addr WM = WS - 1; /* 7 or 3 */ \ 238650cf7698fdd0807a49588376cfefae5289e4488sewardj \ 239650cf7698fdd0807a49588376cfefae5289e4488sewardj if (len > 0) { \ 240650cf7698fdd0807a49588376cfefae5289e4488sewardj if (dst < src) { \ 241650cf7698fdd0807a49588376cfefae5289e4488sewardj \ 242650cf7698fdd0807a49588376cfefae5289e4488sewardj /* Copying backwards. */ \ 243650cf7698fdd0807a49588376cfefae5289e4488sewardj SizeT n = len; \ 244650cf7698fdd0807a49588376cfefae5289e4488sewardj Addr d = (Addr)dst; \ 245650cf7698fdd0807a49588376cfefae5289e4488sewardj Addr s = (Addr)src; \ 246650cf7698fdd0807a49588376cfefae5289e4488sewardj \ 247650cf7698fdd0807a49588376cfefae5289e4488sewardj if (((s^d) & WM) == 0) { \ 248650cf7698fdd0807a49588376cfefae5289e4488sewardj /* s and d have same UWord alignment. */ \ 249650cf7698fdd0807a49588376cfefae5289e4488sewardj /* Pull up to a UWord boundary. */ \ 250650cf7698fdd0807a49588376cfefae5289e4488sewardj while ((s & WM) != 0 && n >= 1) \ 251650cf7698fdd0807a49588376cfefae5289e4488sewardj { *(UChar*)d = *(UChar*)s; s += 1; d += 1; n -= 1; } \ 252650cf7698fdd0807a49588376cfefae5289e4488sewardj /* Copy UWords. */ \ 253650cf7698fdd0807a49588376cfefae5289e4488sewardj while (n >= WS) \ 254650cf7698fdd0807a49588376cfefae5289e4488sewardj { *(UWord*)d = *(UWord*)s; s += WS; d += WS; n -= WS; } \ 255650cf7698fdd0807a49588376cfefae5289e4488sewardj if (n == 0) \ 256650cf7698fdd0807a49588376cfefae5289e4488sewardj return dst; \ 257650cf7698fdd0807a49588376cfefae5289e4488sewardj } \ 258650cf7698fdd0807a49588376cfefae5289e4488sewardj if (((s|d) & 1) == 0) { \ 259650cf7698fdd0807a49588376cfefae5289e4488sewardj /* Both are 16-aligned; copy what we can thusly. */ \ 260650cf7698fdd0807a49588376cfefae5289e4488sewardj while (n >= 2) \ 261650cf7698fdd0807a49588376cfefae5289e4488sewardj { *(UShort*)d = *(UShort*)s; s += 2; d += 2; n -= 2; } \ 262650cf7698fdd0807a49588376cfefae5289e4488sewardj } \ 263650cf7698fdd0807a49588376cfefae5289e4488sewardj /* Copy leftovers, or everything if misaligned. */ \ 264650cf7698fdd0807a49588376cfefae5289e4488sewardj while (n >= 1) \ 265650cf7698fdd0807a49588376cfefae5289e4488sewardj { *(UChar*)d = *(UChar*)s; s += 1; d += 1; n -= 1; } \ 266650cf7698fdd0807a49588376cfefae5289e4488sewardj \ 267650cf7698fdd0807a49588376cfefae5289e4488sewardj } else if (dst > src) { \ 268650cf7698fdd0807a49588376cfefae5289e4488sewardj \ 269650cf7698fdd0807a49588376cfefae5289e4488sewardj SizeT n = len; \ 270650cf7698fdd0807a49588376cfefae5289e4488sewardj Addr d = ((Addr)dst) + n; \ 271650cf7698fdd0807a49588376cfefae5289e4488sewardj Addr s = ((Addr)src) + n; \ 272650cf7698fdd0807a49588376cfefae5289e4488sewardj \ 273650cf7698fdd0807a49588376cfefae5289e4488sewardj /* Copying forwards. */ \ 274650cf7698fdd0807a49588376cfefae5289e4488sewardj if (((s^d) & WM) == 0) { \ 275650cf7698fdd0807a49588376cfefae5289e4488sewardj /* s and d have same UWord alignment. */ \ 276650cf7698fdd0807a49588376cfefae5289e4488sewardj /* Back down to a UWord boundary. */ \ 277650cf7698fdd0807a49588376cfefae5289e4488sewardj while ((s & WM) != 0 && n >= 1) \ 278650cf7698fdd0807a49588376cfefae5289e4488sewardj { s -= 1; d -= 1; *(UChar*)d = *(UChar*)s; n -= 1; } \ 279650cf7698fdd0807a49588376cfefae5289e4488sewardj /* Copy UWords. */ \ 280650cf7698fdd0807a49588376cfefae5289e4488sewardj while (n >= WS) \ 281650cf7698fdd0807a49588376cfefae5289e4488sewardj { s -= WS; d -= WS; *(UWord*)d = *(UWord*)s; n -= WS; } \ 282650cf7698fdd0807a49588376cfefae5289e4488sewardj if (n == 0) \ 283650cf7698fdd0807a49588376cfefae5289e4488sewardj return dst; \ 284650cf7698fdd0807a49588376cfefae5289e4488sewardj } \ 285650cf7698fdd0807a49588376cfefae5289e4488sewardj if (((s|d) & 1) == 0) { \ 286650cf7698fdd0807a49588376cfefae5289e4488sewardj /* Both are 16-aligned; copy what we can thusly. */ \ 287650cf7698fdd0807a49588376cfefae5289e4488sewardj while (n >= 2) \ 288650cf7698fdd0807a49588376cfefae5289e4488sewardj { s -= 2; d -= 2; *(UShort*)d = *(UShort*)s; n -= 2; } \ 289650cf7698fdd0807a49588376cfefae5289e4488sewardj } \ 290650cf7698fdd0807a49588376cfefae5289e4488sewardj /* Copy leftovers, or everything if misaligned. */ \ 291650cf7698fdd0807a49588376cfefae5289e4488sewardj while (n >= 1) \ 292650cf7698fdd0807a49588376cfefae5289e4488sewardj { s -= 1; d -= 1; *(UChar*)d = *(UChar*)s; n -= 1; } \ 293650cf7698fdd0807a49588376cfefae5289e4488sewardj \ 294650cf7698fdd0807a49588376cfefae5289e4488sewardj } \ 295024598e40c84666cc311a42c256bbf880db3ac99sewardj } \ 296650cf7698fdd0807a49588376cfefae5289e4488sewardj \ 297650cf7698fdd0807a49588376cfefae5289e4488sewardj return dst; \ 298024598e40c84666cc311a42c256bbf880db3ac99sewardj } 299024598e40c84666cc311a42c256bbf880db3ac99sewardj 300e61546621e9bca129420399d7c552f8f63c93509njnMEMCPY(VG_Z_LIBC_SONAME, memcpy) 301b4cfbc4e32d5dbf71de9b267ed18462a23d1747fnjn#if defined(VGO_linux) 302e61546621e9bca129420399d7c552f8f63c93509njnMEMCPY(VG_Z_LD_SO_1, memcpy) /* ld.so.1 */ 303e61546621e9bca129420399d7c552f8f63c93509njnMEMCPY(VG_Z_LD64_SO_1, memcpy) /* ld64.so.1 */ 304b4cfbc4e32d5dbf71de9b267ed18462a23d1747fnjn#endif 305024598e40c84666cc311a42c256bbf880db3ac99sewardj 306024598e40c84666cc311a42c256bbf880db3ac99sewardj 307dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj/* Copy SRC to DEST, returning the address of the terminating '\0' in 308dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj DEST. (minor variant of strcpy) */ 309dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj#define STPCPY(soname, fnname) \ 310dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj char* VG_REPLACE_FUNCTION_ZU(soname,fnname) ( char* dst, const char* src ); \ 311dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj char* VG_REPLACE_FUNCTION_ZU(soname,fnname) ( char* dst, const char* src ) \ 312dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj { \ 313dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj while (*src) *dst++ = *src++; \ 314dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj *dst = 0; \ 315dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj \ 316dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj return dst; \ 317dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj } 318dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj 319e61546621e9bca129420399d7c552f8f63c93509njnSTPCPY(VG_Z_LIBC_SONAME, stpcpy) 320b4cfbc4e32d5dbf71de9b267ed18462a23d1747fnjn#if defined(VGO_linux) 321e61546621e9bca129420399d7c552f8f63c93509njnSTPCPY(VG_Z_LD_LINUX_SO_2, stpcpy) 322e61546621e9bca129420399d7c552f8f63c93509njnSTPCPY(VG_Z_LD_LINUX_X86_64_SO_2, stpcpy) 323b4cfbc4e32d5dbf71de9b267ed18462a23d1747fnjn#endif 324dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj 325dda0df8bb606946e7546cd6cf5cbfa1aa3aafdcdsewardj 326da387f2a63296760a87ce4b929fe7f95c52567bbsewardj/* Find the first occurrence of C in S. */ 327da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#define GLIBC232_RAWMEMCHR(soname, fnname) \ 328654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian void* VG_REPLACE_FUNCTION_ZU(soname,fnname) (const void* s, int c_in); \ 329654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian void* VG_REPLACE_FUNCTION_ZU(soname,fnname) (const void* s, int c_in) \ 330da387f2a63296760a87ce4b929fe7f95c52567bbsewardj { \ 331654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian UChar c = (UChar)c_in; \ 332654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian const UChar* char_ptr = s; \ 333da387f2a63296760a87ce4b929fe7f95c52567bbsewardj while (1) { \ 33470a5de1d6c1a5c74b91b564b0ead8ae8a460173cflorian if (*char_ptr == c) return CONST_CAST(void *,char_ptr); \ 335da387f2a63296760a87ce4b929fe7f95c52567bbsewardj char_ptr++; \ 336da387f2a63296760a87ce4b929fe7f95c52567bbsewardj } \ 337da387f2a63296760a87ce4b929fe7f95c52567bbsewardj } 338da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 339da387f2a63296760a87ce4b929fe7f95c52567bbsewardjGLIBC232_RAWMEMCHR(VG_Z_LIBC_SONAME, rawmemchr) 340da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#if defined (VGO_linux) 341da387f2a63296760a87ce4b929fe7f95c52567bbsewardjGLIBC232_RAWMEMCHR(VG_Z_LIBC_SONAME, __GI___rawmemchr) 342da387f2a63296760a87ce4b929fe7f95c52567bbsewardj#endif 343da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 344da387f2a63296760a87ce4b929fe7f95c52567bbsewardj 345adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj#define STRSTR(soname, fnname) \ 346654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian char* VG_REPLACE_FUNCTION_ZU(soname,fnname) \ 347654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian (const char* haystack, const char* needle); \ 348654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian char* VG_REPLACE_FUNCTION_ZU(soname,fnname) \ 349654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian (const char* haystack, const char* needle) \ 350adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj { \ 351654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian const HChar* h = haystack; \ 352654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian const HChar* n = needle; \ 353adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj \ 354adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj /* find the length of n, not including terminating zero */ \ 355adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj UWord nlen = 0; \ 356adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj while (n[nlen]) nlen++; \ 357adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj \ 358adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj /* if n is the empty string, match immediately. */ \ 35970a5de1d6c1a5c74b91b564b0ead8ae8a460173cflorian if (nlen == 0) return CONST_CAST(HChar *,h); \ 360adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj \ 361adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj /* assert(nlen >= 1); */ \ 362654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian HChar n0 = n[0]; \ 363adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj \ 364adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj while (1) { \ 365654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian const HChar hh = *h; \ 366adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj if (hh == 0) return NULL; \ 367adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj if (hh != n0) { h++; continue; } \ 368adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj \ 369adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj UWord i; \ 370adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj for (i = 0; i < nlen; i++) { \ 371adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj if (n[i] != h[i]) \ 372adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj break; \ 373adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj } \ 374adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj /* assert(i >= 0 && i <= nlen); */ \ 375adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj if (i == nlen) \ 37670a5de1d6c1a5c74b91b564b0ead8ae8a460173cflorian return CONST_CAST(HChar *,h); \ 377adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj \ 378adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj h++; \ 379adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj } \ 380adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj } 381adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj 382adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj#if defined(VGO_linux) 383adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardjSTRSTR(VG_Z_LIBC_SONAME, strstr) 384adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj#endif 385adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj 386adf9e4dbdfc602e43c466d3ac44082ca6b9cd4fasewardj 3875446faae7a3c883418549573d8e74f80c2a9b8a8sewardj#define STRPBRK(soname, fnname) \ 388654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian char* VG_REPLACE_FUNCTION_ZU(soname,fnname) \ 389654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian (const char* sV, const char* acceptV); \ 390654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian char* VG_REPLACE_FUNCTION_ZU(soname,fnname) \ 391654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian (const char* sV, const char* acceptV) \ 3925446faae7a3c883418549573d8e74f80c2a9b8a8sewardj { \ 393654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian const HChar* s = sV; \ 394654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian const HChar* accept = acceptV; \ 3955446faae7a3c883418549573d8e74f80c2a9b8a8sewardj \ 3965446faae7a3c883418549573d8e74f80c2a9b8a8sewardj /* find the length of 'accept', not including terminating zero */ \ 3975446faae7a3c883418549573d8e74f80c2a9b8a8sewardj UWord nacc = 0; \ 3985446faae7a3c883418549573d8e74f80c2a9b8a8sewardj while (accept[nacc]) nacc++; \ 3995446faae7a3c883418549573d8e74f80c2a9b8a8sewardj \ 4005446faae7a3c883418549573d8e74f80c2a9b8a8sewardj /* if n is the empty string, fail immediately. */ \ 4015446faae7a3c883418549573d8e74f80c2a9b8a8sewardj if (nacc == 0) return NULL; \ 4025446faae7a3c883418549573d8e74f80c2a9b8a8sewardj \ 4035446faae7a3c883418549573d8e74f80c2a9b8a8sewardj /* assert(nacc >= 1); */ \ 4045446faae7a3c883418549573d8e74f80c2a9b8a8sewardj while (1) { \ 4055446faae7a3c883418549573d8e74f80c2a9b8a8sewardj UWord i; \ 406654b542166d7f2e8e89f1cd8430e7ed2ba96f230florian HChar sc = *s; \ 4075446faae7a3c883418549573d8e74f80c2a9b8a8sewardj if (sc == 0) \ 4085446faae7a3c883418549573d8e74f80c2a9b8a8sewardj break; \ 4095446faae7a3c883418549573d8e74f80c2a9b8a8sewardj for (i = 0; i < nacc; i++) { \ 4105446faae7a3c883418549573d8e74f80c2a9b8a8sewardj if (sc == accept[i]) \ 41170a5de1d6c1a5c74b91b564b0ead8ae8a460173cflorian return CONST_CAST(HChar *,s); \ 4125446faae7a3c883418549573d8e74f80c2a9b8a8sewardj } \ 4135446faae7a3c883418549573d8e74f80c2a9b8a8sewardj s++; \ 4145446faae7a3c883418549573d8e74f80c2a9b8a8sewardj } \ 4155446faae7a3c883418549573d8e74f80c2a9b8a8sewardj \ 4165446faae7a3c883418549573d8e74f80c2a9b8a8sewardj return NULL; \ 4175446faae7a3c883418549573d8e74f80c2a9b8a8sewardj } 4185446faae7a3c883418549573d8e74f80c2a9b8a8sewardj 4195446faae7a3c883418549573d8e74f80c2a9b8a8sewardj#if defined(VGO_linux) 4205446faae7a3c883418549573d8e74f80c2a9b8a8sewardjSTRPBRK(VG_Z_LIBC_SONAME, strpbrk) 4215446faae7a3c883418549573d8e74f80c2a9b8a8sewardj#endif 4225446faae7a3c883418549573d8e74f80c2a9b8a8sewardj 4235446faae7a3c883418549573d8e74f80c2a9b8a8sewardj 424024598e40c84666cc311a42c256bbf880db3ac99sewardj/*--------------------------------------------------------------------*/ 425024598e40c84666cc311a42c256bbf880db3ac99sewardj/*--- end pc_intercepts.c ---*/ 426024598e40c84666cc311a42c256bbf880db3ac99sewardj/*--------------------------------------------------------------------*/ 427