Wed Dec 30 10:18:57 1992 Ian Lance Taylor (ian@cygnus.com)

	* app.c, config/tc-*.c: Don't include read.h, since it is already
	included by as.h.

	* These are based on patches from Minh Tran-le
	<mtranle@paris.intellicorp.com>.
	* configure.in (i[34]86-ibm-aix*): Accept i486 for host.  Use
	obj_format coffbfd and gas_target i386coff for target.
	(i[34]86-*-isc*): New host (uses sysv).
	* config/i386aix.mt: Removed (no longer used).
	* config/mh-i386aix (RANLIB): Use true rather than /bin/true.
	(MINUS_G): Removed.
	(LDFLAGS): Added, defined as -shlib.
	* config/te-i386aix.h (REVERSE_SORT_RELOCS): Undefine.
	* config/te-sco386.h (LOCAL_LABEL): Don't define.
	(DOT_LABEL_PREFIX): Define.
	* expr.c (operand): If DOT_LABEL_PREFIX, use .L0\001 as a label
	name rather than L0\001.
	* read.c (s_lcomm): Make a frag in SEG_BSS rather than using
	local_bss_counter.
	* symbols.c, symbols.h (local_bss_counter): Removed.
	* write.c (write_object_file): bss no longer uses
	local_bss_counter.  Pass correct data and bss size to
	VMS_write_object_file.
	* config/obj-vms.c (VMS_write_object_file): Accept bss size as
	argument, rather than using local_bss_counter.
	* config/tc-m88k.c (s_bss): Don't use local_bss_counter.
	* config/tc-sparc.c (s_reserve): Don't use local_bss_counter.
	* config/obj-coffbfd.c (had_lineno, had_reloc): Removed.
	(size_section): Restored sanity check.
	(do_relocs_for): Base section address on s_paddr rather than
	computing it.  Adjust a29k R_IHIHALF special case to account for
	section paddr (used to require paddr to be zero).  If there are no
	reclos, set s_relptr to 0.  Set relocation size in object_headers.
	(fill_section): Always set s_vaddr here, removing
	ZERO_BASED_SEGMENTS case.  Force s_scnptr for bss to 0.  Don't set
	NOLOAD for i386 .bss, because it confuses the SVR3 native linker.
	Set STYP_INFO for .comment.
	(coff_header_append): Use object headers and H_{SET,GET}_* macros.
	Make aouthdr writing depend on OBJ_COFF_OMIT_OPTIONAL_HEADER.
	(crawl_symbols): Handle 8 character section name correctly.  Use
	H_{SET,GET}_* macros.
	(do_linenos_for): Set lineno size in object_headers.
	(write_object_file): Use H_{SET,GET}_* macros.  Don't bother to
	set s_vaddr here.  If string_byte_count remains 4, set it back to
	0, and only write strings out if there are some.  Call
	fill_section before do_relocs_for and do_linenos_for.
	(obj_coff_section): Handle optional quoted second argument giving
	section characteristics.
	(obj_coff_bss): Added to handle .bss.
	(obj_coff_ident): Added to handle .ident (puts string in .comment
	section).
	(obj_coff_lcomm): Put common symbols in .bss, not .data.
	(fixup_mdeps): Change to segment.  Call frag_wane after
	md_convert_frag.
	(fixup_segment): Explicitly check S_IS_COMMON before making 386
	adjustment (already happened only for common symbols, but this is
	clearer).
	* config/obj-coffbfd.h (OBJ_COFF_OMIT_OPTIONAL_HEADER): Define.
	* config/tc-i386.c (s_bss): Don't use if I386COFF.
	(md_pseudo_table): Ignore .optim and .noopt.
	(tc_coff_sizemachdep): New function.
	* config/tc-i386.h (REVERSE_SORT_RELOCS): Undef, for SVR3
	compatibility.
	(LOCAL_LABEL): Removed definition.
	(DOT_LABEL_PREFIX): Defined.

1 files changed, 21 insertions, 14 deletions

diff --git a/gas/read.c b/gas/read.c
index 09a11de..c470773 100644
--- a/gas/read.c
+++ b/gas/read.c
@@ -587,7 +587,7 @@ read_a_source_file (name)
 		     that goes with this #APP  There is one.  The specs
 		     guarentee it. . . */
 		  tmp_len = buffer_limit - s;
-		  tmp_buf = xmalloc (tmp_len);
+		  tmp_buf = xmalloc (tmp_len + 1);
 		  bcopy (s, tmp_buf, tmp_len);
 		  do
 		    {
@@ -1147,19 +1147,28 @@ s_lcomm (needs_align)
        S_GET_OTHER (symbolP) == 0 &&
        S_GET_DESC (symbolP) == 0 &&
 #endif /* OBJ_AOUT or OBJ_BOUT */
-       (((S_GET_SEGMENT (symbolP) == SEG_BSS) && (S_GET_VALUE (symbolP) == local_bss_counter))
+       (S_GET_SEGMENT (symbolP) == SEG_BSS
 	|| (!S_IS_DEFINED (symbolP) && S_GET_VALUE (symbolP) == 0)))
     {
-      if (needs_align)
-	{
-	  /* Align */
-	  align = ~((~0) << align);	/* Convert to a mask */
-	  local_bss_counter =
-	    (local_bss_counter + align) & (~align);
-	}
+      char *p;
+      segT current_seg = now_seg;
+      subsegT current_subseg = now_subseg;
+
+      subseg_new (SEG_BSS, 1);
+
+      if (align)
+	frag_align (align, 0);
+					/* detach from old frag	*/
+      if (S_GET_SEGMENT (symbolP) == SEG_BSS)
+	symbolP->sy_frag->fr_symbol = NULL;
+
+      symbolP->sy_frag = frag_now;
+      p = frag_var (rs_org, 1, 1, (relax_substateT)0, symbolP,
+		    temp, (char *)0);
+      *p = 0;
 
-      S_SET_VALUE (symbolP, local_bss_counter);
       S_SET_SEGMENT (symbolP, SEG_BSS);
+
 #ifdef OBJ_COFF
       /* The symbol may already have been created with a preceding
 		 * ".globl" directive -- be careful not to step on storage
@@ -1170,13 +1179,11 @@ s_lcomm (needs_align)
 	  S_SET_STORAGE_CLASS (symbolP, C_STAT);
 	}
 #endif /* OBJ_COFF */
-      symbolP->sy_frag = &bss_address_frag;
-      local_bss_counter += temp;
+      subseg_new (current_seg, current_subseg);
     }
   else
     {
-      as_bad ("Ignoring attempt to re-define symbol from %d. to %d.",
-	      S_GET_VALUE (symbolP), local_bss_counter);
+      as_bad ("Ignoring attempt to re-define symbol %s.", name);
     }
   demand_empty_rest_of_line ();