The attached change is preparation for a patch to optimize indirect calls. For
this, we need to a
valid function pointer for fixup in __canonicalize_funcptr_for_compare. The
least-significant two
bits of the pointer should have the value 2, not 3, when the pointer points to
a function descriptor.
Tested on hppa-unknown-linux-gnu and committed to trunk.
Dave
--
John David Anglin dave.ang...@bell.net
2016-06-18 John David Anglin <dang...@gcc.gnu.org>
* config/pa/fptr.c (__canonicalize_funcptr_for_compare): Don't set
least-significant bit in function pointer for fixup.
Index: config/pa/fptr.c
===================================================================
--- config/pa/fptr.c (revision 237565)
+++ config/pa/fptr.c (working copy)
@@ -113,7 +113,7 @@
/* Build a plabel for an indirect call to _dl_fixup. */
fixup_plabel[0] = (unsigned int) iptr + 8; /* address of fixup */
fixup_plabel[1] = got[-1]; /* ltp for fixup */
- fixup = (fixup_t) ((int) fixup_plabel | 3);
+ fixup = (fixup_t) ((int) fixup_plabel | 2);
/* Call fixup to resolve the function address. got[1] contains the
link_map pointer and plabel[1] the relocation offset. */
