From: Bart Van Assche <bvanassche@acm.org>
Date: Sun, 6 Mar 2011 12:39:12 +0000 (+0000)
Subject: DRD: Added a (non-functional so far) file drd_darwin_intercepts.c.
X-Git-Tag: svn/VALGRIND_3_7_0~633
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c5f17ab61b723395656e30865ea1a97cdc86714e;p=thirdparty%2Fvalgrind.git

DRD: Added a (non-functional so far) file drd_darwin_intercepts.c.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11596
---

diff --git a/drd/Makefile.am b/drd/Makefile.am
index edfd7deaef..6295fbd0e0 100644
--- a/drd/Makefile.am
+++ b/drd/Makefile.am
@@ -127,6 +127,10 @@ VGPRELOAD_DRD_SOURCES_COMMON = \
   drd_qtcore_intercepts.c      \
   drd_strmem_intercepts.c
 
+if VGCONF_OS_IS_DARWIN
+VGPRELOAD_DRD_SOURCES_COMMON += drd_darwin_intercepts.c
+endif
+
 vgpreload_drd_@VGCONF_ARCH_PRI@_@VGCONF_OS@_so_SOURCES      = \
 	$(VGPRELOAD_DRD_SOURCES_COMMON)
 vgpreload_drd_@VGCONF_ARCH_PRI@_@VGCONF_OS@_so_CPPFLAGS     = \
diff --git a/drd/drd_darwin_intercepts.c b/drd/drd_darwin_intercepts.c
new file mode 100644
index 0000000000..eae2552109
--- /dev/null
+++ b/drd/drd_darwin_intercepts.c
@@ -0,0 +1,31 @@
+#include <stdint.h>
+#include <stdio.h>
+#include "valgrind.h"
+#include "pub_tool_redir.h"
+
+#if 0
+
+/*
+ * On Mac OS X shared library functions are lazily bound. The binding mechanism
+ * uses self-modifying code. Intercept dyld_stub_binder() in order to suppress
+ * the data accesses involved in this mechanism.
+ *
+ * See also the Mac OS X ABI Dynamic Loader Reference (http://developer.apple.com/library/mac/#documentation/DeveloperTools/Reference/MachOReference/Reference/reference.html#//apple_ref/c/func/dyld_stub_binding_helper).
+ * See also the dyld_stub_binder() source code (http://www.opensource.apple.com/source/dyld/dyld-132.13/src/dyld_stub_binder.s).
+ */
+void* VG_WRAP_FUNCTION_ZZ(libSystemZdZaZddylib, dyldZustubZubinder)
+     (void** imageLoaderCache, uintptr_t lazyBindingInfoOffset);
+void* VG_WRAP_FUNCTION_ZZ(libSystemZdZaZddylib, dyldZustubZubinder)
+     (void** imageLoaderCache, uintptr_t lazyBindingInfoOffset)
+{
+  void* res;
+  OrigFn fn;
+  
+  VALGRIND_GET_ORIG_FN(fn);
+
+  CALL_FN_W_WW(res, fn, imageLoaderCache, lazyBindingInfoOffset);
+
+  return res;
+}
+
+#endif