AIX Assembler uses storage mapping classes to map symbols and CSECTs
to XCOFF file sections. References to symbols with a section to be
determined in the future are suppose to use [UA] storage mapping class
for "unclassified".
rs6000.c:rs6000_output_symbol() adds the [DS] decoration for function
symbols and recently added the [UA] decoration for extern data.
rs6000_output_symbol() both emitted the decoration and also changed
the string in the DECL. For data symbols, this causes a failure in
some of the GCC hashing and comparison routines.
This patch adjusts rs6000_output_symbol() to only modify the DECL for
FUNCTION_DECLs not VAR_DECLs.
Bootstrapped on powrepc-ibm-aix7.1.0.0
* config/rs6000/rs6000.c (rs6000_output_symbol): Don't modify VAR_DECL string.
Index: rs6000.c
===================================================================
--- rs6000.c (revision 240516)
+++ rs6000.c (working copy)
@@ -30309,7 +30309,10 @@ rs6000_output_symbol_ref (FILE *file, rtx x)
(TREE_CODE (decl) == FUNCTION_DECL
? "[DS]" : "[UA]"),
NULL);
- XSTR (x, 0) = name;
+
+ /* Don't modify name in extern VAR_DECL to include mapping class. */
+ if (TREE_CODE (decl) == FUNCTION_DECL)
+ XSTR (x, 0) = name;
}
if (VTABLE_NAME_P (name))
