* write.c (subsegs_finish): New function, broken out of

	write_object_file.
	(write_object_file): Some code moves into subsegs_finish.
	* write.c (subsegs_finish): Declare.
	* as.c (main): Call subsegs_finish.
Fixes last frag when generating a listing for a file with an error.

3 files changed, 217 insertions, 98 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 8f79822..3f8a191 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,11 @@
 Sun Oct 19 13:50:50 1997  Ian Lance Taylor  <ian@cygnus.com>
 
+	* write.c (subsegs_finish): New function, broken out of
+	write_object_file.
+	(write_object_file): Some code moves into subsegs_finish.
+	* write.c (subsegs_finish): Declare.
+	* as.c (main): Call subsegs_finish.
+
 	* read.c (s_include): Check for error return from
 	demand_copy_string.
 
diff --git a/gas/write.c b/gas/write.c
index 71b5fec..7df2d3c 100644
--- a/gas/write.c
+++ b/gas/write.c
@@ -502,6 +502,22 @@ cvt_frag_to_fill (headersP, sec, fragP)
     case rs_fill:
       break;
 
+    case rs_leb128:
+      {
+	valueT value = S_GET_VALUE (fragP->fr_symbol);
+	int size;
+
+	size = output_leb128 (fragP->fr_literal + fragP->fr_fix, value,
+			      fragP->fr_subtype);
+
+	fragP->fr_fix += size;
+	fragP->fr_type = rs_fill;
+	fragP->fr_var = 0;
+	fragP->fr_offset = 0;
+	fragP->fr_symbol = NULL;
+      }
+      break;
+
     case rs_machine_dependent:
 #ifdef BFD_ASSEMBLER
       md_convert_frag (stdoutput, sec, fragP);
@@ -695,9 +711,9 @@ adjust_reloc_syms (abfd, sec, xxx)
 	   symbols, though, since they are not in the regular symbol
 	   table.  */
 	if (sym != NULL && ! sym->sy_resolved)
-	  resolve_symbol_value (sym);
+	  resolve_symbol_value (sym, 1);
 	if (fixp->fx_subsy != NULL && ! fixp->fx_subsy->sy_resolved)
-	  resolve_symbol_value (fixp->fx_subsy);
+	  resolve_symbol_value (fixp->fx_subsy, 1);
 
 	/* If this symbol is equated to an undefined symbol, convert
            the fixup to being against that symbol.  */
@@ -1301,10 +1317,47 @@ set_symtab ()
 }
 #endif
 
+/* Finish the subsegments.  After every sub-segment, we fake an
+   ".align ...".  This conforms to BSD4.2 brane-damage.  We then fake
+   ".fill 0" because that is the kind of frag that requires least
+   thought.  ".align" frags like to have a following frag since that
+   makes calculating their intended length trivial.  */
+
+#ifndef SUB_SEGMENT_ALIGN
+#ifdef BFD_ASSEMBLER
+#define SUB_SEGMENT_ALIGN(SEG) (0)
+#else
+#define SUB_SEGMENT_ALIGN(SEG) (2)
+#endif
+#endif
+
+void
+subsegs_finish ()
+{
+  struct frchain *frchainP;
+
+  for (frchainP = frchain_root; frchainP; frchainP = frchainP->frch_next)
+    {
+      subseg_set (frchainP->frch_seg, frchainP->frch_subseg);
+      frag_align (SUB_SEGMENT_ALIGN (now_seg), NOP_OPCODE, 0);
+
+      /* frag_align will have left a new frag.
+	 Use this last frag for an empty ".fill".
+
+	 For this segment ...
+	 Create a last frag. Do not leave a "being filled in frag".  */
+
+      frag_wane (frag_now);
+      frag_now->fr_fix = 0;
+      know (frag_now->fr_next == NULL);
+    }
+}
+
+/* Write the object file.  */
+
 void
 write_object_file ()
 {
-  struct frchain *frchainP;	/* Track along all frchains. */
 #if ! defined (BFD_ASSEMBLER) || ! defined (WORKING_DOT_WORD)
   fragS *fragP;			/* Track along all frags. */
 #endif
@@ -1339,34 +1392,6 @@ write_object_file ()
   vms_check_for_main ();
 #endif /* OBJ_VMS */
 
-  /* After every sub-segment, we fake an ".align ...". This conforms to
-     BSD4.2 brane-damage. We then fake ".fill 0" because that is the kind of
-     frag that requires least thought. ".align" frags like to have a
-     following frag since that makes calculating their intended length
-     trivial.
-
-     @@ Is this really necessary??  */
-#ifndef SUB_SEGMENT_ALIGN
-#ifdef BFD_ASSEMBLER
-#define SUB_SEGMENT_ALIGN(SEG) (0)
-#else
-#define SUB_SEGMENT_ALIGN(SEG) (2)
-#endif
-#endif
-  for (frchainP = frchain_root; frchainP; frchainP = frchainP->frch_next)
-    {
-      subseg_set (frchainP->frch_seg, frchainP->frch_subseg);
-      frag_align (SUB_SEGMENT_ALIGN (now_seg), NOP_OPCODE, 0);
-      /* frag_align will have left a new frag.
-	 Use this last frag for an empty ".fill".
-
-	 For this segment ...
-	 Create a last frag. Do not leave a "being filled in frag".  */
-      frag_wane (frag_now);
-      frag_now->fr_fix = 0;
-      know (frag_now->fr_next == NULL);
-    }
-
   /* From now on, we don't care about sub-segments.  Build one frag chain
      for each segment. Linked thru fr_next.  */
 
@@ -1711,7 +1736,7 @@ write_object_file ()
 
       for (symp = symbol_rootP; symp; symp = symbol_next (symp))
 	if (!symp->sy_resolved)
-	  resolve_symbol_value (symp);
+	  resolve_symbol_value (symp, 1);
     }
 
   PROGRESS (1);
@@ -1768,7 +1793,7 @@ write_object_file ()
 		  symp->sy_resolved = 1;
 		}
 	      else
-		resolve_symbol_value (symp);
+		resolve_symbol_value (symp, 1);
 	    }
 
 	  /* Skip symbols which were equated to undefined or common
@@ -2094,6 +2119,12 @@ relax_segment (segment_frag_root, segment)
 	  break;
 #endif
 
+	case rs_leb128:
+	  /* Initial guess is always 1; doing otherwise can result in 
+	     stable solutions that are larger than the minimum.  */
+	  address += fragP->fr_offset = 1;
+	  break;
+
 	default:
 	  BAD_CASE (fragP->fr_type);
 	  break;
@@ -2283,6 +2314,18 @@ relax_segment (segment_frag_root, segment)
 #endif
 		break;
 
+	      case rs_leb128:
+		{
+		  valueT value;
+		  int size;
+
+		  value = resolve_symbol_value (fragP->fr_symbol, 0);
+		  size = sizeof_leb128 (value, fragP->fr_subtype);
+		  growth = size - fragP->fr_offset;
+		  fragP->fr_offset = size;
+		}
+		break;
+
 	      default:
 		BAD_CASE (fragP->fr_type);
 		break;
@@ -2390,7 +2433,7 @@ fixup_segment (fixP, this_segment_type)
 
       if (sub_symbolP)
 	{
-	  resolve_symbol_value (sub_symbolP);
+	  resolve_symbol_value (sub_symbolP, 1);
 	  if (add_symbolP == NULL || add_symbol_segment == absolute_section)
 	    {
 	      if (add_symbolP != NULL)
@@ -2588,15 +2631,11 @@ fixup_segment (fixP, this_segment_type)
 	      else
 		{
 		  seg_reloc_count++;
-/* start-sanitize-v850 */
 #if !(defined (TC_V850) && defined (OBJ_ELF))
-/* end-sanitize-v850 */
 #if !(defined (TC_M68K) && defined (OBJ_ELF))
-#if !defined (TC_I386) || !(defined (OBJ_ELF) || defined (OBJ_COFF))
+#if !defined (TC_I386) || !(defined (OBJ_ELF) || defined (OBJ_COFF)) || defined (TE_PE)
 		  add_number += S_GET_VALUE (add_symbolP);
-/* start-sanitize-v850 */
 #endif
-/* end-sanitize-v850 */
 #endif
 #endif
 		}
diff --git a/gas/write.h b/gas/write.h
index 6d16bab..7cadec5 100644
--- a/gas/write.h
+++ b/gas/write.h
@@ -1,6 +1,5 @@
 /* write.h
-
-   Copyright (C) 1987, 1992, 1993 Free Software Foundation, Inc.
+   Copyright (C) 1987, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
 
@@ -15,8 +14,9 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with GAS; see the file COPYING.  If not, write to
-   the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+   along with GAS; see the file COPYING.  If not, write to the Free
+   Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.  */
 
 #ifndef TC_I960
 #ifdef hpux
@@ -24,16 +24,19 @@
 #endif
 #endif /* TC_I960 */
 
+#ifndef BFD_ASSEMBLER
+
 #ifndef LOCAL_LABEL
-#ifdef DOT_LABEL_PREFIX
-#define LOCAL_LABEL(name) (name[0] =='.' \
-			   && ( name [1] == 'L' || name [1] == '.' ))
-#else /* not defined DOT_LABEL_PREFIX */
 #define LOCAL_LABEL(name) (name [0] == 'L' )
-#endif /* not defined DOT_LABEL_PREFIX */
-#endif /* LOCAL_LABEL */
+#endif
 
-#define S_LOCAL_NAME(s) (LOCAL_LABEL(S_GET_NAME(s)))
+#define S_LOCAL_NAME(s) (LOCAL_LABEL (S_GET_NAME (s)))
+
+#endif /* ! BFD_ASSEMBLER */
+
+/* This is the name of a fake symbol which will never appear in the
+   assembler output.  S_IS_LOCAL detects it because of the \001.  */
+#define FAKE_LABEL_NAME "L0\001"
 
 #include "bit_fix.h"
 
@@ -42,43 +45,102 @@
  */
 
 struct fix
-  {
-    /* These small fields are grouped together for compactness of
-       this structure, and efficiency of access on some architectures.  */
-    char fx_pcrel_adjust;	/* pc-relative offset adjust */
-    unsigned fx_pcrel : 1;	/* TRUE: pc-relative. */
-    unsigned fx_im_disp : 1;	/* TRUE: value is a displacement */
-    unsigned fx_bsr : 1;	/* sequent-hack */
-    /* TRUE if target is a 'callj' (used by i960) */
-    unsigned fx_callj : 1;
-    short int fx_size;		/* How many bytes are involved? */
-
-    fragS *fx_frag;		/* Which frag? */
-    long fx_where;		/* Where is the 1st byte to fix up? */
-    symbolS *fx_addsy;		/* NULL or Symbol whose value we add in. */
-    symbolS *fx_subsy;		/* NULL or Symbol whose value we subtract. */
-    valueT fx_offset;		/* Absolute number we add in. */
-    struct fix *fx_next;	/* NULL or -> next fixS. */
-    bit_fixS *fx_bit_fixP;	/* IF NULL no bitfix's to do */
+{
+  /* These small fields are grouped together for compactness of
+     this structure, and efficiency of access on some architectures.  */
+
+  /* pc-relative offset adjust */
+  char fx_pcrel_adjust;
+
+  /* How many bytes are involved? */
+  unsigned char fx_size;
+
+  /* Is this a pc-relative relocation?  */
+  unsigned fx_pcrel : 1;
+
+  /* Is this a relocation to a procedure linkage table entry?  If so,
+     some of the reductions we try to apply are invalid.  A better way
+     might be to represent PLT entries with different kinds of
+     symbols, and use normal relocations (with undefined symbols);
+     look into it for version 2.6.  */
+  unsigned fx_plt : 1;
+
+  /* Is this value an immediate displacement?  */
+  /* Only used on i960 and ns32k; merge it into TC_FIX_TYPE sometime.  */
+  unsigned fx_im_disp : 2;
+
+  /* A bit for the CPU specific code.
+     This probably can be folded into tc_fix_data, below.  */
+  unsigned fx_tcbit : 1;
+
+  /* Has this relocation already been applied?  */
+  unsigned fx_done : 1;
+
+  /* Suppress overflow complaints on large addends.  This is used
+     in the PowerPC ELF config to allow large addends on the
+     BFD_RELOC_{LO16,HI16,HI16_S} relocations.
+
+     @@ Can this be determined from BFD?  */
+  unsigned fx_no_overflow : 1;
+
+  /* The value is signed when checking for overflow.  */
+  unsigned fx_signed : 1;
+
+  /* Which frag does this fix apply to?  */
+  fragS *fx_frag;
+
+  /* Where is the first byte to fix up?  */
+  long fx_where;
+
+  /* NULL or Symbol whose value we add in. */
+  symbolS *fx_addsy;
+
+  /* NULL or Symbol whose value we subtract. */
+  symbolS *fx_subsy;
+
+  /* Absolute number we add in. */
+  valueT fx_offset;
+
+  /* Next fixS in linked list, or NULL.  */
+  struct fix *fx_next;
+
+  /* If NULL, no bitfix's to do.  */
+  /* Only i960-coff and ns32k use this, and i960-coff stores an
+     integer.  This can probably be folded into tc_fix_data, below.
+     @@ Alpha also uses it, but only to disable certain relocation
+     processing.  */
+  bit_fixS *fx_bit_fixP;
+
 #ifdef BFD_ASSEMBLER
-    bfd_reloc_code_real_type fx_r_type;
+  bfd_reloc_code_real_type fx_r_type;
 #else
 #ifdef NEED_FX_R_TYPE
-    /* Hack for machines where the type of reloc can't be
-       worked out by looking at how big it is.  */
-    int fx_r_type;
+  /* Hack for machines where the type of reloc can't be
+     worked out by looking at how big it is.  */
+  int fx_r_type;
 #endif
 #endif
 
-    /* This field is sort of misnamed.  It appears to be a sort of random
-       scratch field, for use by the back ends.  The main gas code doesn't
-       do anything but initialize it to zero.  The use of it does need to
-       be coordinated between the cpu and format files, though.  E.g., some
-       coff targets pass the `addend' field from the cpu file via this
-       field.  I don't know why the `fx_offset' field above can't be used
-       for that; investigate later and document. KR  */
-    valueT fx_addnumber;
-  };
+  /* This field is sort of misnamed.  It appears to be a sort of random
+     scratch field, for use by the back ends.  The main gas code doesn't
+     do anything but initialize it to zero.  The use of it does need to
+     be coordinated between the cpu and format files, though.  E.g., some
+     coff targets pass the `addend' field from the cpu file via this
+     field.  I don't know why the `fx_offset' field above can't be used
+     for that; investigate later and document. KR  */
+  valueT fx_addnumber;
+
+  /* The location of the instruction which created the reloc, used
+     in error messages.  */
+  char *fx_file;
+  unsigned fx_line;
+
+#ifdef TC_FIX_TYPE
+  /* Location where a backend can attach additional data
+     needed to perform fixups.  */
+  TC_FIX_TYPE tc_fix_data;
+#endif
+};
 
 typedef struct fix fixS;
 
@@ -89,6 +151,8 @@ extern char *next_object_file_charP;
 COMMON fixS *text_fix_root, *text_fix_tail;	/* Chains fixSs. */
 COMMON fixS *data_fix_root, *data_fix_tail;	/* Chains fixSs. */
 COMMON fixS *bss_fix_root, *bss_fix_tail;	/* Chains fixSs. */
+extern struct frag *text_last_frag;		/* Last frag in segment. */
+extern struct frag *data_last_frag;		/* Last frag in segment. */
 #endif
 COMMON fixS **seg_fix_rootP, **seg_fix_tailP;	/* -> one of above. */
 #endif
@@ -96,26 +160,36 @@ COMMON fixS **seg_fix_rootP, **seg_fix_tailP;	/* -> one of above. */
 extern long string_byte_count;
 extern int section_alignment[];
 
-bit_fixS *bit_fix_new PARAMS ((int size, int offset, long base_type,
-			       long base_adj, long min, long max, long add));
-void append PARAMS ((char **charPP, char *fromP, unsigned long length));
-void record_alignment PARAMS ((segT seg, int align));
-void write_object_file PARAMS ((void));
-void relax_segment PARAMS ((struct frag * seg_frag_root, segT seg_type));
+extern bit_fixS *bit_fix_new
+  PARAMS ((int size, int offset, long base_type, long base_adj, long min,
+	   long max, long add));
+extern void append PARAMS ((char **charPP, char *fromP, unsigned long length));
+extern void record_alignment PARAMS ((segT seg, int align));
+extern void subsegs_finish PARAMS ((void));
+extern void write_object_file PARAMS ((void));
+extern long relax_frag PARAMS ((fragS *, long));
+extern void relax_segment
+  PARAMS ((struct frag * seg_frag_root, segT seg_type));
+
+extern void number_to_chars_littleendian PARAMS ((char *, valueT, int));
+extern void number_to_chars_bigendian    PARAMS ((char *, valueT, int));
 
 #ifdef BFD_ASSEMBLER
-fixS *fix_new PARAMS ((fragS * frag, int where, int size,
-		       symbolS * add_symbol, offsetT offset, int pcrel,
-		       bfd_reloc_code_real_type r_type));
-fixS *fix_new_exp PARAMS ((fragS * frag, int where, int size,
-			   expressionS *exp, int pcrel,
-			   bfd_reloc_code_real_type r_type));
+extern fixS *fix_new
+  PARAMS ((fragS * frag, int where, int size, symbolS * add_symbol,
+	   offsetT offset, int pcrel, bfd_reloc_code_real_type r_type));
+extern fixS *fix_new_exp
+  PARAMS ((fragS * frag, int where, int size, expressionS *exp, int pcrel,
+	   bfd_reloc_code_real_type r_type));
 #else
-fixS *fix_new PARAMS ((fragS * frag, int where, int size,
-		       symbolS * add_symbol, offsetT offset, int pcrel,
-		       int r_type));
-fixS *fix_new_exp PARAMS ((fragS * frag, int where, int size,
-			   expressionS *exp, int pcrel, int r_type));
+extern fixS *fix_new
+  PARAMS ((fragS * frag, int where, int size, symbolS * add_symbol,
+	   offsetT offset, int pcrel, int r_type));
+extern fixS *fix_new_exp
+  PARAMS ((fragS * frag, int where, int size, expressionS *exp, int pcrel,
+	   int r_type));
 #endif
 
+extern void write_print_statistics PARAMS ((FILE *));
+
 /* end of write.h */