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Redirect memcpy@@GLIBC_2.14 differently from memcpy@GLIBC_2.2.5, so as

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to retain overlap checks for the former whilst skipping them for the
latter.  Pertains to #275284.  (Tom Hughes, tom@compton.nu)



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11988
This commit is contained in:
Julian Seward 2011-08-17 21:25:50 +00:00
parent 9473baead3
commit 1f13aa82f1
1 changed files with 9 additions and 8 deletions
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17
memcheck/mc_replace_strmem.c
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@ -632,9 +632,9 @@ MEMCHR(VG_Z_DYLD, memchr)
#define MEMMOVE_OR_MEMCPY(becTag, soname, fnname, do_ol_check) \
void* VG_REPLACE_FUNCTION_EZU(becTag,soname,fnname) \
void* VG_REPLACE_FUNCTION_EZZ(becTag,soname,fnname) \
( void *dst, const void *src, SizeT len ); \
void* VG_REPLACE_FUNCTION_EZU(becTag,soname,fnname) \
void* VG_REPLACE_FUNCTION_EZZ(becTag,soname,fnname) \
( void *dst, const void *src, SizeT len ) \
{ \
if (do_ol_check && is_overlap(dst, src, len, len)) \
@ -711,12 +711,13 @@ MEMCHR(VG_Z_DYLD, memchr)
#if defined(VGO_linux)
/* For older memcpy we have to use memmove-like semantics and skip the
overlap check; sigh; see #275284. */
MEMMOVE(VG_Z_LIBC_SONAME, memcpy)
MEMMOVE(VG_Z_LD_SO_1, memcpy) /* ld.so.1 */
MEMMOVE(VG_Z_LD64_SO_1, memcpy) /* ld64.so.1 */
MEMMOVE(VG_Z_LIBC_SONAME, memcpyZAGLIBCZu2Zd2Zd5) /* memcpy@GLIBC_2.2.5 */
MEMCPY(VG_Z_LIBC_SONAME, memcpyZAZAGLIBCZu2Zd14) /* memcpy@@GLIBC_2.14 */
MEMCPY(VG_Z_LD_SO_1, memcpy) /* ld.so.1 */
MEMCPY(VG_Z_LD64_SO_1, memcpy) /* ld64.so.1 */
#elif defined(VGO_darwin)
MEMCPY(VG_Z_LIBC_SONAME, memcpy)
MEMCPY(VG_Z_DYLD, memcpy)
MEMCPY(VG_Z_LIBC_SONAME, memcpy)
MEMCPY(VG_Z_DYLD, memcpy)
#endif
/* icc9 blats these around all over the place. Not only in the main
executable but various .so's. They are highly tuned and read
@ -726,7 +727,7 @@ MEMCPY(VG_Z_DYLD, memcpy)
only until we understand more about the problem. See
http://bugs.kde.org/show_bug.cgi?id=139776
*/
MEMCPY(NONE, _intel_fast_memcpy)
MEMCPY(NONE, ZuintelZufastZumemcpy)
#define MEMCMP(soname, fnname) \