massive cleanup of toolchain/

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4038 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 43 insertions, 0 deletions

diff --git a/toolchain/gcc/patches/3.4.5/71_all_sh-pr16665-fix.patch b/toolchain/gcc/patches/3.4.5/71_all_sh-pr16665-fix.patch
new file mode 100644
index 000000000..680bb3978
--- /dev/null
+++ b/toolchain/gcc/patches/3.4.5/71_all_sh-pr16665-fix.patch
@@ -0,0 +1,43 @@
+--- gcc/gcc/config/sh/sh.c
++++ gcc/gcc/config/sh/sh.c
+@@ -9106,6 +9106,15 @@ sh_output_mi_thunk (FILE *file, tree thu
+     }
+   this = FUNCTION_ARG (cum, Pmode, ptr_type_node, 1);
+ 
++  /* In PIC case, we set PIC register to compute the target address.  We
++     can use a scratch register to save and restore the original value  
++     except for SHcompact.  For SHcompact, use stack.  */
++  if (flag_pic && TARGET_SHCOMPACT)
++    {
++      push (PIC_OFFSET_TABLE_REGNUM);
++      emit_insn (gen_GOTaddr2picreg ());
++    }
++
+   /* For SHcompact, we only have r0 for a scratch register: r1 is the
+      static chain pointer (even if you can't have nested virtual functions
+      right now, someone might implement them sometime), and the rest of the
+@@ -9188,8 +9197,24 @@ sh_output_mi_thunk (FILE *file, tree thu
+       assemble_external (function);
+       TREE_USED (function) = 1;
+     }
++  /* We can use scratch1 to save and restore the original value of
++     PIC register except for SHcompact.  */
++  if (flag_pic && ! TARGET_SHCOMPACT)
++    {
++      emit_move_insn (scratch1,
++		      gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM));
++      emit_insn (gen_GOTaddr2picreg ());
++    }
+   funexp = XEXP (DECL_RTL (function), 0);
+   emit_move_insn (scratch2, funexp);
++  if (flag_pic)
++    {
++      if (! TARGET_SHCOMPACT)
++	emit_move_insn (gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM),
++			scratch1);
++      else
++	pop (PIC_OFFSET_TABLE_REGNUM);
++    }
+   funexp = gen_rtx_MEM (FUNCTION_MODE, scratch2);
+   sibcall = emit_call_insn (gen_sibcall (funexp, const0_rtx, NULL_RTX));
+   SIBLING_CALL_P (sibcall) = 1;