BaseTools IA32/X64: move .rodata to PE/COFF .text section

The .rodata ELF section contains constant non-executable data that
should never be modified by the program itself. Since the risk of
inadvertent modification is typically higher than the risk of
inadvertent execution, it makes sense to put this data in the
R-X .text section rather than in the RW- .data section.
So move it there.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Tested-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18131 6f19259b-4bc3-4df7-8a09-765794883524

BaseTools/Scripts/gcc-4K-align-ld-script

@@ -6,12 +6,12 @@ SECTIONS
   .text : ALIGN(0x1000)
   {
     *(.text .stub .text.* .gnu.linkonce.t.*)
+    *(.rodata .rodata.* .gnu.linkonce.r.*)
     . = ALIGN(0x20);
   }
   .data : ALIGN(0x1000)
   {
     *(
-      .rodata .rodata.* .gnu.linkonce.r.*
       .data .data.* .gnu.linkonce.d.*
       .bss .bss.*
       *COM*

BaseTools/Scripts/gcc4.4-ld-script

@@ -6,12 +6,12 @@ SECTIONS
   .text ALIGN(0x20) :
   {
     *(.text .stub .text.* .gnu.linkonce.t.*)
+    *(.rodata .rodata.* .gnu.linkonce.r.*)
     . = ALIGN(0x20);
   }
   .data ALIGN(0x20) :
   {
     *(
-      .rodata .rodata.* .gnu.linkonce.r.*
       .data .data.* .gnu.linkonce.d.*
       .bss .bss.*
       *COM*

BaseTools/Scripts/gcc4.9-ld-script

@@ -6,12 +6,12 @@ SECTIONS
   .text ALIGN(0x20) :
   {
     *(.text .stub .text.* .gnu.linkonce.t.*)
+    *(.rodata .rodata.* .gnu.linkonce.r.*)
     . = ALIGN(0x20);
   }
   .data ALIGN(0x40) :
   {
     *(
-      .rodata .rodata.* .gnu.linkonce.r.*
       .data .data.* .gnu.linkonce.d.*
       .bss .bss.*
       *COM*