Pad sections according to current script FILL.

When aligning input sections, we are supposed to take the fill pattern
from a FILL statement, if there is one in the output section statement.

ld/
	* ldlang.c (lang_size_sections_1 <lang_input_section_enum>): Use
	current "fill", not "output_section_statement->fill".
ld/testsuite/
	* ld-scripts/fill.d, * ld-scripts/fill.t, * ld-scripts/fill_0.s,
	* ld-scripts/fill_1.s, * ld-scripts/fill_2.s: New test.
	* ld-scripts/data.exp: Run it.

ld/ChangeLog

@@ -1,3 +1,8 @@
+2014-04-04  Alan Modra  <amodra@gmail.com>
+
+	* ldlang.c (lang_size_sections_1 <lang_input_section_enum>): Use
+	current "fill", not "output_section_statement->fill".
+
 2014-03-31  Nick Clifton  <nickc@redhat.com>
 
 	PR ld/16744

ld/ldlang.c

@@ -5213,7 +5213,7 @@ lang_size_sections_1
 		  *relax = TRUE;
 	      }
 	    dot = size_input_section (prev, output_section_statement,
-				      output_section_statement->fill, dot);
+				      fill, dot);
 	  }
 	  break;
 

ld/testsuite/ChangeLog

@@ -1,3 +1,9 @@
+2014-04-04  Alan Modra  <amodra@gmail.com>
+
+	* ld-scripts/fill.d, * ld-scripts/fill.t, * ld-scripts/fill_0.s,
+	* ld-scripts/fill_1.s, * ld-scripts/fill_2.s: New test.
+	* ld-scripts/data.exp: Run it.
+
 2014-03-31  Marcus Shawcroft  <marcus.shawcroft@arm.com>
 
 	* ld-aarch64/eh-frame.d: Adjust FDE pc address.

ld/testsuite/ld-scripts/data.exp

@@ -23,7 +23,9 @@
 # text segment, confusing run_dump_test.
 if {[is_aout_format]} {
 	unsupported data
+	unsupported fill
 	return
 }
 
 run_dump_test data
+run_dump_test fill

ld/testsuite/ld-scripts/fill.d

@@ -0,0 +1,29 @@
+#source: fill_0.s
+#source: fill_1.s
+#source: fill_2.s
+#ld: -T fill.t
+#objdump: -s -j .text
+#xfail: ia64-*-* alpha-*-*ecoff m32c-*-* mips*-*-* sh-*-pe sparc*-*-coff
+#xfail: tic30-*-coff tic4x-*-* tic54x-*-*
+#xfail: x86_64-*-pe* x86_64-*-mingw* x86_64-*-cygwin z8k-*-*
+# Breaks on ia64 due to minimum alignment of code.  The section alignment
+# could be increased to suit ia64 but then we'd break many coff targets
+# that don't support alignment other than 4 bytes.
+# alpha-linuxecoff always aligns code to 16 bytes.
+# m32c pads out code sections to 8 bytes.
+# mips aligns to 16 bytes
+# sh-pe pads out code sections to 16 bytes
+# sparc-coff aligns to 8 bytes
+# tic30-coff aligns to 2 bytes
+# tic4x has 4 octet bytes
+# tic54x doesn't support .p2align
+# x86_64-pe aligns to 16 bytes
+# z8k-coff aligns to 2 bytes
+
+.*:     file format .*
+
+Contents of section .text:
+ [0-9a-f]+ cafebabe 01010101 02020202 12232323 .*
+ [0-9a-f]+ 03030303 00345600 00004567 000089ab .*
+ [0-9a-f]+ (deadbeef|efbeadde) 00004567 000089ab 0000cdef .*
+ [0-9a-f]+ 00004567 000089ab 0000cdef 00000123 .*

ld/testsuite/ld-scripts/fill.t

@@ -0,0 +1,20 @@
+SECTIONS
+{
+  .text :
+  {
+    . += 4;
+    *0.o(.text)
+    FILL (0x12)
+    *1.o(.text)
+    . += 1;
+    FILL (0x23)
+    *2.o(.text)
+    FILL (0x003456)
+    . += 4;
+    FILL (0x00004567000089ab0000cdef00000123)
+    . += 8;
+    LONG (0xdeadbeef)
+    . += 12;
+    . += 16;
+  } =0xcafebabe
+}

ld/testsuite/ld-scripts/fill_0.s

@@ -0,0 +1,2 @@
+ .text
+ .byte 1,1,1,1

ld/testsuite/ld-scripts/fill_1.s

@@ -0,0 +1,3 @@
+ .text
+ .p2align 2
+ .byte 2,2,2,2

ld/testsuite/ld-scripts/fill_2.s

@@ -0,0 +1,3 @@
+ .text
+ .p2align 2
+ .byte 3,3,3,3