aarch64: allow adding/removing just feature flags via .arch_extension

[deliverable/binutils-gdb.git] / gas / subsegs.c

diff --git a/gas/subsegs.c b/gas/subsegs.c
index e77bce82ae3dd6c3fb0cde2c8852999f9398b873..0e0a75519c1ad1b8873e142e5c15fd92991659ae 100644 (file)
--- a/gas/subsegs.c
+++ b/gas/subsegs.c
@@ -1,13 +1,11 @@
 /* subsegs.c - subsegments -
-   Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
-   Free Software Foundation, Inc.
+   Copyright (C) 1987-2014 Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
 
    GAS is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    GAS is distributed in the hope that it will be useful,
@@ -57,7 +55,7 @@ subsegs_begin (void)
  * segment context correct.
  */
 void
-subseg_change (register segT seg, register int subseg)
+subseg_change (segT seg, int subseg)
 {
   segment_info_type *seginfo = seg_info (seg);
   now_seg = seg;
@@ -65,13 +63,9 @@ subseg_change (register segT seg, register int subseg)
 
   if (! seginfo)
     {
-      seginfo = (segment_info_type *) xmalloc (sizeof (*seginfo));
-      memset ((PTR) seginfo, 0, sizeof (*seginfo));
-      seginfo->fix_root = NULL;
-      seginfo->fix_tail = NULL;
+      seginfo = (segment_info_type *) xcalloc (1, sizeof (*seginfo));
       seginfo->bfd_section = seg;
-      seginfo->sym = 0;
-      bfd_set_section_userdata (stdoutput, seg, (PTR) seginfo);
+      bfd_set_section_userdata (stdoutput, seg, seginfo);
     }
 }
 \f
@@ -88,7 +82,7 @@ subseg_set_rest (segT seg, subsegT subseg)
   if (frag_now && frchain_now)
     frchain_now->frch_frag_now = frag_now;
 
-  assert (frchain_now == 0
+  gas_assert (frchain_now == 0
          || frchain_now->frch_last == frag_now);
 
   subseg_change (seg, (int) subseg);
@@ -117,6 +111,7 @@ subseg_set_rest (segT seg, subsegT subseg)
 #endif
       newP->frch_frag_now = frag_alloc (&newP->frch_obstack);
       newP->frch_frag_now->fr_type = rs_fill;
+      newP->frch_cfi_data = NULL;
 
       newP->frch_root = newP->frch_last = newP->frch_frag_now;
 
@@ -128,7 +123,7 @@ subseg_set_rest (segT seg, subsegT subseg)
   frchain_now = frcP;
   frag_now = frcP->frch_frag_now;
 
-  assert (frchain_now->frch_last == frag_now);
+  gas_assert (frchain_now->frch_last == frag_now);
 }
 
 /*
@@ -170,16 +165,9 @@ subseg_get (const char *segname, int force_new)
   if (! seginfo)
     {
       secptr->output_section = secptr;
-      seginfo = (segment_info_type *) xmalloc (sizeof (*seginfo));
-      memset ((PTR) seginfo, 0, sizeof (*seginfo));
-      seginfo->fix_root = NULL;
-      seginfo->fix_tail = NULL;
+      seginfo = (segment_info_type *) xcalloc (1, sizeof (*seginfo));
       seginfo->bfd_section = secptr;
-      bfd_set_section_userdata (stdoutput, secptr, (PTR) seginfo);
-      seginfo->frchainP = NULL;
-      seginfo->lineno_list_head = seginfo->lineno_list_tail = NULL;
-      seginfo->sym = NULL;
-      seginfo->dot = NULL;
+      bfd_set_section_userdata (stdoutput, secptr, seginfo);
     }
   return secptr;
 }
@@ -290,7 +278,7 @@ seg_not_empty_p (segT sec ATTRIBUTE_UNUSED)
 
   if (!seginfo)
     return 0;
-  
+
   for (chain = seginfo->frchainP; chain; chain = chain->frch_next)
     {
       for (frag = chain->frch_root; frag; frag = frag->fr_next)