[llvm-commits] [llvm] r44528 - /llvm/trunk/lib/System/DynamicLibrary.cpp

[Anton Korobeynikov]

Author: asl
Date: Sun Dec  2 23:30:41 2007
New Revision: 44528

URL: http://llvm.org/viewvc/llvm-project?rev=44528&view=rev
Log:
Provide hook for _alloca to make JITing on Cygwin slightly happier :)

Modified:
    llvm/trunk/lib/System/DynamicLibrary.cpp

Modified: llvm/trunk/lib/System/DynamicLibrary.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/System/DynamicLibrary.cpp?rev=44528&r1=44527&r2=44528&view=diff

==============================================================================
--- llvm/trunk/lib/System/DynamicLibrary.cpp (original)
+++ llvm/trunk/lib/System/DynamicLibrary.cpp Sun Dec  2 23:30:41 2007
@@ -138,14 +138,15 @@
       return ptr;
   }
 
+#define EXPLICIT_SYMBOL(SYM) \
+   extern void *SYM; if (!strcmp(symbolName, #SYM)) return &SYM
+
   // If this is darwin, it has some funky issues, try to solve them here.  Some
   // important symbols are marked 'private external' which doesn't allow
   // SearchForAddressOfSymbol to find them.  As such, we special case them here,
   // there is only a small handful of them.
 
 #ifdef __APPLE__
-#define EXPLICIT_SYMBOL(SYM) \
-   extern void *SYM; if (!strcmp(symbolName, #SYM)) return &SYM
   {
     EXPLICIT_SYMBOL(__ashldi3);
     EXPLICIT_SYMBOL(__ashrdi3);
@@ -163,9 +164,16 @@
     EXPLICIT_SYMBOL(__udivdi3);
     EXPLICIT_SYMBOL(__umoddi3);
   }
-#undef EXPLICIT_SYMBOL
 #endif
 
+#ifdef __CYGWIN__
+  {
+    EXPLICIT_SYMBOL(_alloca);
+  }
+#endif
+
+#undef EXPLICIT_SYMBOL
+
 // This macro returns the address of a well-known, explicit symbol
 #define EXPLICIT_SYMBOL(SYM) \
    if (!strcmp(symbolName, #SYM)) return &SYM