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-rw-r--r--boehm-gc/include/private/gcconfig.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h
index a3f468f6891..9151a2ff796 100644
--- a/boehm-gc/include/private/gcconfig.h
+++ b/boehm-gc/include/private/gcconfig.h
@@ -453,6 +453,9 @@
* DATAEND, if not `end' where `end' is defined as ``extern int end[];''.
* RTH suggests gaining access to linker script synth'd values with
* this idiom instead of `&end' where `end' is defined as ``extern int end;'' .
+ * Otherwise, ``GCC will assume these are in .sdata/.sbss'' and it will
+ * cause failures on alpha*-*-* with ``-msmall-data or -fpic'' or mips-*-*
+ * or ia64-*-* without any special options.
*
* ALIGN_DOUBLE of GC_malloc should return blocks aligned to twice
* the pointer size.