1 files changed, 56 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0301-config-sparc-sparc.md-setjmp-Handle-PIC-mode-and-use.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0301-config-sparc-sparc.md-setjmp-Handle-PIC-mode-and-use.patch
new file mode 100644
index 0000000000..0b827c1178
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0301-config-sparc-sparc.md-setjmp-Handle-PIC-mode-and-use.patch
@@ -0,0 +1,56 @@
+From 0a4d0f222b48850a59769bc1d53327ea4c819e8b Mon Sep 17 00:00:00 2001
+From: ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Sat, 21 May 2011 22:49:41 +0000
+Subject: [PATCH]        * config/sparc/sparc.md (setjmp): Handle PIC mode and use the hard
+        frame pointer.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@174014 138bc75d-0d04-0410-961f-82ee72b054a4
+
+index 853bd2f..5e16179 100644
+--- a/gcc/config/sparc/sparc.md
++++ b/gcc/config/sparc/sparc.md
+@@ -6507,8 +6507,8 @@
+                      (const_int 4)))])
+ 
+ ;; For __builtin_setjmp we need to flush register windows iff the function
+-;; calls alloca as well, because otherwise the register window might be
+-;; saved after %sp adjustment and thus setjmp would crash
++;; calls alloca as well, because otherwise the current register window might
++;; be saved after the %sp adjustment and thus setjmp would crash.
+ (define_expand "builtin_setjmp_setup"
+   [(match_operand 0 "register_operand" "r")]
+   ""
+@@ -6547,19 +6547,26 @@
+                (eq_attr "pic" "true")
+                  (const_int 4)] (const_int 3)))])
+ 
+-;; Pattern for use after a setjmp to store FP and the return register
+-;; into the stack area.
++;; Pattern for use after a setjmp to store registers into the save area.
+ 
+ (define_expand "setjmp"
+   [(const_int 0)]
+   ""
+ {
+   rtx mem;
+-  
++
++  if (flag_pic)
++    {
++      mem = gen_rtx_MEM (Pmode,
++                        plus_constant (stack_pointer_rtx,
++                                       SPARC_STACK_BIAS + 7 * UNITS_PER_WORD));
++      emit_insn (gen_rtx_SET (VOIDmode, mem, pic_offset_table_rtx));
++    }
++
+   mem = gen_rtx_MEM (Pmode,
+                     plus_constant (stack_pointer_rtx,
+                                    SPARC_STACK_BIAS + 14 * UNITS_PER_WORD));
+-  emit_insn (gen_rtx_SET (VOIDmode, mem, frame_pointer_rtx));
++  emit_insn (gen_rtx_SET (VOIDmode, mem, hard_frame_pointer_rtx));
+ 
+   mem = gen_rtx_MEM (Pmode,
+                     plus_constant (stack_pointer_rtx,
+-- 
+1.7.0.4
+