openwrt/toolchain/gcc/patches/4.9-linaro/020-no-plt-backport.patch

29 lines
942 B
Diff

--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -184,6 +184,12 @@ prepare_call_address (tree fndecl, rtx f
&& targetm.small_register_classes_for_mode_p (FUNCTION_MODE))
? force_not_mem (memory_address (FUNCTION_MODE, funexp))
: memory_address (FUNCTION_MODE, funexp));
+ else if (flag_pic && !flag_plt && fndecl
+ && TREE_CODE (fndecl) == FUNCTION_DECL
+ && !targetm.binds_local_p (fndecl))
+ {
+ funexp = force_reg (Pmode, funexp);
+ }
else if (! sibcallp)
{
#ifndef NO_FUNCTION_CSE
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -1659,6 +1659,10 @@ fpie
Common Report Var(flag_pie,1) Negative(fPIC)
Generate position-independent code for executables if possible (small mode)
+fplt
+Common Report Var(flag_plt) Init(1)
+Use PLT for PIC calls (-fno-plt: load the address from GOT at call site)
+
fplugin=
Common Joined RejectNegative Var(common_deferred_options) Defer
Specify a plugin to load