Make libs smaller by overlapping text and rodata sections.

Change-Id: I0f3b9a941c19040635752b2648ef51c50dba849b
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/5135
Tested-by: Jenkins Server
Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

1 files changed, 39 insertions, 32 deletions

diff --git a/src/kernel.ld b/src/kernel.ld
index d1f2cef42..c2bcc2304 100644
--- a/src/kernel.ld
+++ b/src/kernel.ld
@@ -28,52 +28,59 @@ SECTIONS
     . = base_load_address;
 
     .text ALIGN(0x1000): {
-	*(.text.intvects)
-	. = text_load_address;
+        *(.text.intvects)
+        . = text_load_address;
         *(.text.kernelasm)
-	*(.text)
-	*(.text._*)
+        *(.text)
+        *(.text._*)
         *(.text.*)
-	*(.rodata)
-	*(.rodata.*)
-	. = ALIGN(0x8);
-	ctor_start_address = .;
-	*(.ctors)
-	ctor_end_address = .;
     }
-    
-    .data ALIGN(0x1000): {
-	data_load_address = .;
-	*(.data)
-	*(.data.*)
-	*(.branch_lt)
 
-	toc_load_address = .;
-	*(.toc)
-	*(.opd)
-	*(.got)
+    .rodata ALIGN(0x8): {
+        __minimum_data_start_addr = ALIGN(0x1000);
+        ctor_start_address = .;
+        *(.ctors)
+        ctor_end_address = .;
+        *(.rodata)
+        *(.rodata.*)
+        toc_load_address = .;
+        *(.toc)
+        *(.opd)
+        *(.got)
+        *(.plt)
+        *(.data.rel.ro.*)
+        *(.data.*traceData_codeInfo*)
+
+        . = __minimum_data_start_addr > . ? __minimum_data_start_addr : .;
+    }
+
+    .data ALIGN(0x8): {
+        data_load_address = .;
+        *(.data)
+        *(.data.*)
 
-	*(.bss)
-	*(.bss.*)
+        *(.bss)
+        *(.bss.*)
 
     }
 
     end_load_address = .;
     
-    .dynstr : {
-	*(.dynstr)
-    }
-
     .rela : {
-	*(.rela.*)
+        *(.rela.*)
     }
- 
+
+    .dynsym : { *(.dynsym) }
+    .dynstr : { *(.dynstr) }
+    .hash : { *(.hash) }
+    .gnu.hash : { *(.gnu.hash) }
+    .eh_frame : { *(.eh_frame) }
 
     /DISCARD/ : {
-	*(.comment)
-	*(.gnu.attributes)
-	*(.dtors)
-	*(.interp)
+        *(.comment)
+        *(.gnu.attributes)
+        *(.dtors)
+        *(.interp)
     }
 }