avr: Fix bugs in org/align tracking.

This commit fixes a few issues in the mechanism for passing information
about ".org" and ".align" directives from the assembler to the linker,
used by the avr target.

In the original commit fdd410ac7a07dfb47dcb992201000582a280d8b2, there
were some mistakes when writing out information about ".align"
directives:
  - An align with fill does not write out its information correctly, the
    fill data overwrites the alignment data.
  - Each alignment directive is recorded at the location where the
    previous alignment directive should be recorded, the first alignment
    directive is discarded.

In commit 137c83d69fad77677cc818593f9399caa777a0c5, the data produced by
objdump is not correct:
   - It's miss-aligned due to a missing whitespace.
   - The fill data for align with fill records is not displayed
     correctly.

All of the above issues are addressed in this commit, and the test is
improved to cover these cases.

binutils/ChangeLog:

	* od-elf32_avr.c (elf32_avr_dump_avr_prop): Fix printing of align
	specific data, fix formatting for align and org data.

gas/ChangeLog:

	* config/tc-avr.c (avr_output_property_record): Fix overwrite bug
	for align and fill records.
	(avr_handle_align): Record fill information for align frags.
	(create_record_for_frag): Add next frag assertion, use correct
	address for align records.

gas/testsuite/ChangeLog:

	* gas/avr/avr-prop-1.s: Use fill in some cases.
	* gas/avr/avr-prop-1.d: Update expected results.

5 files changed, 33 insertions, 13 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 90b358b..e81117a 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,11 @@
+2015-10-12  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+	* config/tc-avr.c (avr_output_property_record): Fix overwrite bug
+	for align and fill records.
+	(avr_handle_align): Record fill information for align frags.
+	(create_record_for_frag): Add next frag assertion, use correct
+	address for align records.
+
 2015-10-10  Alan Modra  <amodra@gmail.com>
 
 	PR gas/19113
diff --git a/gas/config/tc-avr.c b/gas/config/tc-avr.c
index 09eea48..252b1a2 100644
--- a/gas/config/tc-avr.c
+++ b/gas/config/tc-avr.c
@@ -1993,7 +1993,7 @@ avr_output_property_record (char * const frag_base, char *frag_ptr,
 
     case RECORD_ALIGN_AND_FILL:
       md_number_to_chars (frag_ptr, record->data.align.bytes, 4);
-      md_number_to_chars (frag_ptr, record->data.align.fill, 4);
+      md_number_to_chars (frag_ptr + 4, record->data.align.fill, 4);
       frag_ptr += 8;
       break;
 
@@ -2038,11 +2038,14 @@ avr_handle_align (fragS *fragP)
          alignment mechanism.  */
       if ((fragP->fr_type == rs_align
            || fragP->fr_type == rs_align_code)
-          && fragP->fr_address > 0
           && fragP->fr_offset > 0)
         {
+          char *p = fragP->fr_literal + fragP->fr_fix;
+
           fragP->tc_frag_data.is_align = TRUE;
           fragP->tc_frag_data.alignment = fragP->fr_offset;
+          fragP->tc_frag_data.fill = *p;
+          fragP->tc_frag_data.has_fill = (fragP->tc_frag_data.fill != 0);
         }
 
       if (fragP->fr_type == rs_org && fragP->fr_offset > 0)
@@ -2078,6 +2081,7 @@ create_record_for_frag (segT sec, fragS *fragP)
 
   prop_rec_link = xmalloc (sizeof (struct avr_property_record_link));
   memset (prop_rec_link, 0, sizeof (*prop_rec_link));
+  gas_assert (fragP->fr_next != NULL);
 
   if (fragP->tc_frag_data.is_org)
     {
@@ -2094,7 +2098,7 @@ create_record_for_frag (segT sec, fragS *fragP)
     }
   else
     {
-      prop_rec_link->record.offset = fragP->fr_address;
+      prop_rec_link->record.offset = fragP->fr_next->fr_address;
       prop_rec_link->record.section = sec;
 
       gas_assert (fragP->tc_frag_data.is_align);
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 814d0a6..54bb989 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-10-12  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+	* gas/avr/avr-prop-1.s: Use fill in some cases.
+	* gas/avr/avr-prop-1.d: Update expected results.
+
 2015-10-07  Claudiu Zissulescu  <claziss@synopsys.com>
 
 	* gas/arc/adc.s: Update test for ARCv1/ARCv2.
diff --git a/gas/testsuite/gas/avr/avr-prop-1.d b/gas/testsuite/gas/avr/avr-prop-1.d
index b140ae6..9cbbd96 100644
--- a/gas/testsuite/gas/avr/avr-prop-1.d
+++ b/gas/testsuite/gas/avr/avr-prop-1.d
@@ -12,15 +12,18 @@ Contents of `\.avr\.prop' section:
   Flags:   0
 
    0 ORG @ \.text\.1 \+ 0x000020 \(0x000020\)
-   1 ORG @ \.text\.1 \+ 0x000044 \(0x000044\)
+   1 ORG\+FILL @ \.text\.1 \+ 0x000044 \(0x000044\)
+     Fill: 0x000005
    2 ORG @ \.text\.2 \+ 0x000020 \(0x000020\)
-   3 ALIGN @ \.text\.2 \+ 0x000020 \(0x000020\)
-    Align: 0x000004
-   4 ALIGN @ \.text\.2 \+ 0x000030 \(0x000030\)
-    Align: 0x000004
+   3 ALIGN @ \.text\.2 \+ 0x000030 \(0x000030\)
+     Align: 0x000004
+   4 ALIGN\+FILL @ \.text\.2 \+ 0x000040 \(0x000040\)
+     Align: 0x000004, Fill: 0x000003
    5 ORG @ \.text\.2 \+ 0x000200 \(0x000200\)
-   6 ALIGN @ \.text\.2 \+ 0x000200 \(0x000200\)
-    Align: 0x000004
+   6 ALIGN @ \.text\.2 \+ 0x000210 \(0x000210\)
+     Align: 0x000004
    7 ALIGN @ \.text\.3 \+ 0x000100 \(0x000100\)
-    Align: 0x000008
+     Align: 0x000008
+   8 ALIGN @ \.text\.3 \+ 0x000200 \(0x000200\)
+     Align: 0x000008
 
diff --git a/gas/testsuite/gas/avr/avr-prop-1.s b/gas/testsuite/gas/avr/avr-prop-1.s
index 6e50cf1..1949216 100644
--- a/gas/testsuite/gas/avr/avr-prop-1.s
+++ b/gas/testsuite/gas/avr/avr-prop-1.s
@@ -3,7 +3,7 @@
 _start:
         .org 0x20
         nop
-        .org 0x44
+        .org 0x44,5
         nop
 
 
@@ -14,7 +14,7 @@ text2:
         nop
         .align 4
         nop
-        .align 4
+        .align 4,3
         nop
         .org 0x200
         nop