From: Julian Seward <jseward@acm.org>
Date: Mon, 16 Aug 2010 22:56:16 +0000 (+0000)
Subject: Add more intercepts for strcpy, strncmp, strcmp, so as to reduce the
X-Git-Tag: svn/VALGRIND_3_6_0~194
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=480294a05f88be3bf149fc46b29162f6cbd2ee9f;p=thirdparty%2Fvalgrind.git

Add more intercepts for strcpy, strncmp, strcmp, so as to reduce the
noise level on Ubuntu 10.04 64-bit.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11261
---

diff --git a/exp-ptrcheck/h_intercepts.c b/exp-ptrcheck/h_intercepts.c
index 812d52c97e..0e23e078ec 100644
--- a/exp-ptrcheck/h_intercepts.c
+++ b/exp-ptrcheck/h_intercepts.c
@@ -126,12 +126,61 @@ STRNLEN(VG_Z_LIBC_SONAME, strnlen)
 
 STRLEN(VG_Z_LIBC_SONAME,          strlen)
 #if defined(VGO_linux)
+STRLEN(VG_Z_LIBC_SONAME,          __GI_strlen)
 STRLEN(VG_Z_LD_LINUX_SO_2,        strlen)
 STRLEN(VG_Z_LD_LINUX_X86_64_SO_2, strlen)
 STRLEN(VG_Z_LD_SO_1,              strlen)
 #endif
 
 
+#define STRCPY(soname, fnname) \
+   char* VG_REPLACE_FUNCTION_ZU(soname, fnname) ( char* dst, const char* src ); \
+   char* VG_REPLACE_FUNCTION_ZU(soname, fnname) ( char* dst, const char* src ) \
+   { \
+      Char* dst_orig = dst; \
+      \
+      while (*src) *dst++ = *src++; \
+      *dst = 0; \
+      \
+      return dst_orig; \
+   }
+
+STRCPY(VG_Z_LIBC_SONAME, strcpy)
+#if defined(VGO_linux)
+STRCPY(VG_Z_LIBC_SONAME, __GI_strcpy)
+#elif defined(VGO_darwin)
+STRCPY(VG_Z_DYLD,        strcpy)
+#endif
+
+
+#define STRNCMP(soname, fnname) \
+   int VG_REPLACE_FUNCTION_ZU(soname,fnname) \
+          ( const char* s1, const char* s2, SizeT nmax ); \
+   int VG_REPLACE_FUNCTION_ZU(soname,fnname) \
+          ( const char* s1, const char* s2, SizeT nmax ) \
+   { \
+      SizeT n = 0; \
+      while (True) { \
+         if (n >= nmax) return 0; \
+         if (*s1 == 0 && *s2 == 0) return 0; \
+         if (*s1 == 0) return -1; \
+         if (*s2 == 0) return 1; \
+         \
+         if (*(unsigned char*)s1 < *(unsigned char*)s2) return -1; \
+         if (*(unsigned char*)s1 > *(unsigned char*)s2) return 1; \
+         \
+         s1++; s2++; n++; \
+      } \
+   }
+
+STRNCMP(VG_Z_LIBC_SONAME, strncmp)
+#if defined(VGO_linux)
+STRNCMP(VG_Z_LIBC_SONAME, __GI_strncmp)
+#elif defined(VGO_darwin)
+STRNCMP(VG_Z_DYLD,        strncmp)
+#endif
+
+
 #define STRCMP(soname, fnname) \
    int VG_REPLACE_FUNCTION_ZU(soname,fnname) \
           ( const char* s1, const char* s2 ); \
@@ -154,6 +203,7 @@ STRLEN(VG_Z_LD_SO_1,              strlen)
 
 STRCMP(VG_Z_LIBC_SONAME,          strcmp)
 #if defined(VGO_linux)
+STRCMP(VG_Z_LIBC_SONAME,          __GI_strcmp)
 STRCMP(VG_Z_LD_LINUX_X86_64_SO_2, strcmp)
 STRCMP(VG_Z_LD64_SO_1,            strcmp)
 #endif