[PATCH] D48733: Introduce a separate preprocessor macro, _LIBUNWIND_USE_DLADDR, for directly controlling a dependency on dladdr(). This will allow us to use libunwind without adding a libdl dependency.

[Jordan Rupprecht via Phabricator via cfe-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL336014: Introduce a separate preprocessor macro, _LIBUNWIND_USE_DLADDR, for directly… (authored by rupprecht, committed by ).
Herald added a subscriber: llvm-commits.

Repository:
  rL LLVM

https://reviews.llvm.org/D48733

Files:
  libunwind/trunk/src/AddressSpace.hpp


Index: libunwind/trunk/src/AddressSpace.hpp
===================================================================
--- libunwind/trunk/src/AddressSpace.hpp
+++ libunwind/trunk/src/AddressSpace.hpp
@@ -18,7 +18,15 @@
 #include <stdlib.h>
 #include <string.h>
 
-#if !defined(_LIBUNWIND_IS_BAREMETAL) && !defined(_WIN32)
+#ifndef _LIBUNWIND_USE_DLADDR
+  #if !defined(_LIBUNWIND_IS_BAREMETAL) && !defined(_WIN32)
+    #define _LIBUNWIND_USE_DLADDR 1
+  #else
+    #define _LIBUNWIND_USE_DLADDR 0
+  #endif
+#endif
+
+#if _LIBUNWIND_USE_DLADDR
 #include <dlfcn.h>
 #endif
 
@@ -576,7 +584,7 @@
 inline bool LocalAddressSpace::findFunctionName(pint_t addr, char *buf,
                                                 size_t bufLen,
                                                 unw_word_t *offset) {
-#if !defined(_LIBUNWIND_IS_BAREMETAL) && !defined(_WIN32)
+#if _LIBUNWIND_USE_DLADDR
   Dl_info dyldInfo;
   if (dladdr((void *)addr, &dyldInfo)) {
     if (dyldInfo.dli_sname != NULL) {


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D48733.153565.patch
Type: text/x-patch
Size: 984 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20180629/9a707785/attachment.bin>