For very short linker scripts dlopen may return 'file too short' instead

[ghc-hetmet.git] / rts / Linker.c

diff --git a/rts/Linker.c b/rts/Linker.c
index 2acefc3..c1310b0 100644 (file)
--- a/rts/Linker.c
+++ b/rts/Linker.c
@@ -70,12 +70,12 @@
 #include <sys/wait.h>
 #endif
 
-#if defined(linux_HOST_OS    ) || defined(freebsd_HOST_OS) || \
-    defined(dragonfly_HOST_OS) || defined(netbsd_HOST_OS ) || \
-    defined(openbsd_HOST_OS  ) || \
-    ( defined(darwin_HOST_OS ) && !defined(powerpc_HOST_ARCH) ) || \
-    defined(kfreebsdgnu_HOST_OS)
-/* Don't use mmap on powerpc-apple-darwin as mmap doesn't support
+#if !defined(powerpc_HOST_ARCH) && \
+    (   defined(linux_HOST_OS    ) || defined(freebsd_HOST_OS) || \
+        defined(dragonfly_HOST_OS) || defined(netbsd_HOST_OS ) || \
+        defined(openbsd_HOST_OS  ) || defined(darwin_HOST_OS ) || \
+        defined(kfreebsdgnu_HOST_OS) )
+/* Don't use mmap on powerpc_HOST_ARCH as mmap doesn't support
  * reallocating but we need to allocate jump islands just after each
  * object images. Otherwise relative branches to jump islands can fail
  * due to 24-bits displacement overflow.
@@ -832,6 +832,7 @@ typedef struct _RtsSymbolVal {
       SymI_HasProto(stg_newTVarzh)                      \
       SymI_HasProto(stg_noDuplicatezh)                  \
       SymI_HasProto(stg_atomicModifyMutVarzh)           \
+      SymI_HasProto(stg_casMutVarzh)                    \
       SymI_HasProto(stg_newPinnedByteArrayzh)           \
       SymI_HasProto(stg_newAlignedPinnedByteArrayzh)    \
       SymI_HasProto(newSpark)                           \
@@ -1185,11 +1186,11 @@ initLinker( void )
 #   endif /* RTLD_DEFAULT */
 
     compileResult = regcomp(&re_invalid,
-           "(([^ \t()])+\\.so([^ \t:()])*):([ \t])*invalid ELF header",
+           "(([^ \t()])+\\.so([^ \t:()])*):([ \t])*(invalid ELF header|file too short)",
            REG_EXTENDED);
     ASSERT( compileResult == 0 );
     compileResult = regcomp(&re_realso,
-           "GROUP *\\( *(([^ )])+)",
+           "(GROUP|INPUT) *\\( *(([^ )])+)",
            REG_EXTENDED);
     ASSERT( compileResult == 0 );
 #   endif
@@ -1360,8 +1361,8 @@ addDLL( char *dll_name )
          if (regexec(&re_realso, line, (size_t) NMATCH, match, 0) == 0) {
             // success -- try to dlopen the first named file
             IF_DEBUG(linker, debugBelch("match%s\n",""));
-            line[match[1].rm_eo] = '\0';
-            errmsg = internal_dlopen(line+match[1].rm_so);
+            line[match[2].rm_eo] = '\0';
+            errmsg = internal_dlopen(line+match[2].rm_so);
             break;
          }
          // if control reaches here, no GROUP ( ... ) directive was found
@@ -2571,7 +2572,11 @@ static void
 ocFlushInstructionCache( ObjectCode *oc )
 {
     /* The main object code */
-    ocFlushInstructionCacheFrom(oc->image + oc->misalignment, oc->fileSize);
+    ocFlushInstructionCacheFrom(oc->image
+#ifdef darwin_HOST_OS
+            + oc->misalignment
+#endif
+            , oc->fileSize);
 
     /* Jump Islands */
     ocFlushInstructionCacheFrom(oc->symbol_extras, sizeof(SymbolExtra) * oc->n_symbol_extras);