* write.c (is_dnrange): Stop as soon as the address becomes

	larger.
	(relax_frag): Add segment parameter.  Only call symbol_get_frag
	once.  Only call is_dnrange if the symbol is in the same segment,
	and the symbol address is larger.
	(relax_segment): Pass segment to md_relax_frag and relax_frag.
	* write.h (relax_frag): Update declaration.
	* config/tc-fr30.c (fr30_relax_frag): Add segment parameter.  Pass
	it to relax_frag.
	* config/tc-m32r.c (m32r_relax_frag): Likewise.
	* config/tc-m32r.h (md_relax_frag): Add segment parameter.
	(m32r_relax_frag): Update declaration.
	* config/tc-mips.h (md_relax_frag): Add segment parameter.
	* config/tc-tic54x.h (md_relax_frag): Likewise.
	* doc/internals.texi (CPU backend): Update documentation for
	md_relax_frag.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index b9be469..a2e30b1 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,22 @@
+2001-02-13  Ian Lance Taylor  <ian@zembu.com>
+
+       * write.c (is_dnrange): Stop as soon as the address becomes
+       larger.
+       (relax_frag): Add segment parameter.  Only call symbol_get_frag
+       once.  Only call is_dnrange if the symbol is in the same segment,
+       and the symbol address is larger.
+       (relax_segment): Pass segment to md_relax_frag and relax_frag.
+       * write.h (relax_frag): Update declaration.
+       * config/tc-fr30.c (fr30_relax_frag): Add segment parameter.  Pass
+       it to relax_frag.
+       * config/tc-m32r.c (m32r_relax_frag): Likewise.
+       * config/tc-m32r.h (md_relax_frag): Add segment parameter.
+       (m32r_relax_frag): Update declaration.
+       * config/tc-mips.h (md_relax_frag): Add segment parameter.
+       * config/tc-tic54x.h (md_relax_frag): Likewise.
+       * doc/internals.texi (CPU backend): Update documentation for
+       md_relax_frag.
+
 2001-02-13  Alan Modra  <alan@linuxcare.com.au>
 
        * doc/c-i386.texi (i386-Arch): Add "jumps"/"nojumps" blurb.

diff --git a/gas/config/tc-fr30.c b/gas/config/tc-fr30.c
index c61a8af..ea7ffb5 100644 (file)
--- a/gas/config/tc-fr30.c
+++ b/gas/config/tc-fr30.c
@@ -208,7 +208,8 @@ const relax_typeS md_relax_table[] =
 };
 
 long
-fr30_relax_frag (fragP, stretch)
+fr30_relax_frag (segment, fragP, stretch)
+     segT    segment;
      fragS * fragP;
      long    stretch;
 {
@@ -235,7 +236,7 @@ fr30_relax_frag (fragP, stretch)
     }
   else
     {
-      growth = relax_frag (fragP, stretch);
+      growth = relax_frag (segment, fragP, stretch);
 
       /* Long jump on odd halfword boundary?  */
       if (fragP->fr_subtype == 2 && (address & 3) != 0)

diff --git a/gas/config/tc-m32r.c b/gas/config/tc-m32r.c
index 062181e..cf68fe3 100644 (file)
--- a/gas/config/tc-m32r.c
+++ b/gas/config/tc-m32r.c
@@ -1384,7 +1384,8 @@ const relax_typeS md_relax_table[] =
 };
 
 long
-m32r_relax_frag (fragP, stretch)
+m32r_relax_frag (segment, fragP, stretch)
+     segT segment;
      fragS *fragP;
      long stretch;
 {
@@ -1411,7 +1412,7 @@ m32r_relax_frag (fragP, stretch)
     }
   else
     {
-      growth = relax_frag (fragP, stretch);
+      growth = relax_frag (segment, fragP, stretch);
 
       /* Long jump on odd halfword boundary?  */
       if (fragP->fr_subtype == 2 && (address & 3) != 0)

diff --git a/gas/config/tc-m32r.h b/gas/config/tc-m32r.h
index 9e04c19..98bfb8d 100644 (file)
--- a/gas/config/tc-m32r.h
+++ b/gas/config/tc-m32r.h
@@ -54,9 +54,9 @@ extern void m32r_prepare_relax_scan ();
 #define md_prepare_relax_scan(fragP, address, aim, this_state, this_type) \
 m32r_prepare_relax_scan (fragP, address, aim, this_state, this_type)
 #else
-extern long m32r_relax_frag PARAMS ((fragS *, long));
-#define md_relax_frag(fragP, stretch) \
-m32r_relax_frag (fragP, stretch)
+extern long m32r_relax_frag PARAMS ((segT, fragS *, long));
+#define md_relax_frag(segment, fragP, stretch) \
+m32r_relax_frag (segment, fragP, stretch)
 #endif
 /* Account for nop if 32 bit insn falls on odd halfword boundary.  */
 #define TC_CGEN_MAX_RELAX(insn, len) (6)

diff --git a/gas/config/tc-mips.h b/gas/config/tc-mips.h
index 561d5d7..72e734f 100644 (file)
--- a/gas/config/tc-mips.h
+++ b/gas/config/tc-mips.h
@@ -49,7 +49,7 @@ struct expressionS;
    relocation: */
 #define MAX_GPREL_OFFSET (0x7FF4)
 
-#define md_relax_frag(fragp, stretch) mips_relax_frag(fragp, stretch)
+#define md_relax_frag(segment, fragp, stretch) mips_relax_frag(fragp, stretch)
 extern int mips_relax_frag PARAMS ((struct frag *, long));
 
 #define md_undefined_symbol(name)      (0)

diff --git a/gas/config/tc-tic54x.h b/gas/config/tc-tic54x.h
index b43cce1..d162da6 100644 (file)
--- a/gas/config/tc-tic54x.h
+++ b/gas/config/tc-tic54x.h
@@ -108,7 +108,7 @@ extern void tic54x_start_line_hook ();
 tic54x_estimate_size_before_relax(f,s)
 extern int tic54x_estimate_size_before_relax(fragS *, segT);
 
-#define md_relax_frag(f,s) tic54x_relax_frag(f,s)
+#define md_relax_frag(seg, f,s) tic54x_relax_frag(f,s)
 extern int tic54x_relax_frag(fragS *, long);
 
 #define md_convert_frag(b,s,f) tic54x_convert_frag(b,s,f)

diff --git a/gas/doc/internals.texi b/gas/doc/internals.texi
index a42bc0f..5f203ca 100644 (file)
--- a/gas/doc/internals.texi
+++ b/gas/doc/internals.texi
@@ -1166,9 +1166,10 @@ relocations.
 
 @item md_relax_frag
 @cindex md_relax_frag
-This macro may be defined to relax a frag.  GAS will call this with the frag
-and the change in size of all previous frags; @code{md_relax_frag} should
-return the change in size of the frag.  @xref{Relaxation}.
+This macro may be defined to relax a frag.  GAS will call this with the
+segment, the frag, and the change in size of all previous frags;
+@code{md_relax_frag} should return the change in size of the frag.
+@xref{Relaxation}.
 
 @item TC_GENERIC_RELAX_TABLE
 @cindex TC_GENERIC_RELAX_TABLE

diff --git a/gas/write.c b/gas/write.c
index 24b387e..2ae110d 100644 (file)
--- a/gas/write.c
+++ b/gas/write.c
@@ -1998,21 +1998,30 @@ write_object_file ()
 static int is_dnrange PARAMS ((fragS *, fragS *));
 
 /* Subroutines of relax_segment.  */
+
 static int
 is_dnrange (f1, f2)
      fragS *f1;
      fragS *f2;
 {
+  addressT f2addr;
+
+  f2addr = f2->fr_address;
   for (; f1; f1 = f1->fr_next)
-    if (f1->fr_next == f2)
-      return 1;
+    {
+      if (f1->fr_next == f2)
+       return 1;
+      if (f1->fr_address > f2addr)
+       break;
+    }
   return 0;
 }
 
 /* Relax a fragment by scanning TC_GENERIC_RELAX_TABLE.  */
 
 long
-relax_frag (fragP, stretch)
+relax_frag (segment, fragP, stretch)
+     segT segment;
      fragS *fragP;
      long stretch;
 {
@@ -2034,6 +2043,10 @@ relax_frag (fragP, stretch)
 
   if (symbolP)
     {
+      fragS *sym_frag;
+
+      sym_frag = symbol_get_frag (symbolP);
+
 #ifndef DIFF_EXPR_OK
 #if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER)
       know ((S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE)
@@ -2041,23 +2054,24 @@ relax_frag (fragP, stretch)
            || (S_GET_SEGMENT (symbolP) == SEG_BSS)
            || (S_GET_SEGMENT (symbolP) == SEG_TEXT));
 #endif
-      know (symbolP->sy_frag);
+      know (sym_frag != NULL);
 #endif
       know (!(S_GET_SEGMENT (symbolP) == absolute_section)
-           || symbolP->sy_frag == &zero_address_frag);
-      target += S_GET_VALUE (symbolP) + symbol_get_frag (symbolP)->fr_address;
+           || sym_frag == &zero_address_frag);
+      target += S_GET_VALUE (symbolP) + sym_frag->fr_address;
 
       /* If frag has yet to be reached on this pass,
         assume it will move by STRETCH just as we did.
         If this is not so, it will be because some frag
         between grows, and that will force another pass.
 
-        Beware zero-length frags.
-
-        There should be a faster way to do this.  */
+        Beware zero-length frags.  */
 
-      if (symbol_get_frag (symbolP)->fr_address >= was_address
-         && is_dnrange (fragP, symbol_get_frag (symbolP)))
+      if (stretch != 0
+         && S_GET_SEGMENT (symbolP) == segment
+         && (sym_frag->fr_address > was_address
+             || (sym_frag->fr_address == was_address
+                 && is_dnrange (fragP, sym_frag))))
        {
          target += stretch;
        }
@@ -2413,12 +2427,12 @@ relax_segment (segment_frag_root, segment)
 
              case rs_machine_dependent:
 #ifdef md_relax_frag
-               growth = md_relax_frag (fragP, stretch);
+               growth = md_relax_frag (segment, fragP, stretch);
 #else
 #ifdef TC_GENERIC_RELAX_TABLE
                /* The default way to relax a frag is to look through
                   TC_GENERIC_RELAX_TABLE.  */
-               growth = relax_frag (fragP, stretch);
+               growth = relax_frag (segment, fragP, stretch);
 #endif /* TC_GENERIC_RELAX_TABLE  */
 #endif
                break;

diff --git a/gas/write.h b/gas/write.h
index 9872e9d..9a63dc5 100644 (file)
--- a/gas/write.h
+++ b/gas/write.h
@@ -181,7 +181,7 @@ extern void record_alignment PARAMS ((segT seg, int align));
 extern int get_recorded_alignment PARAMS ((segT seg));
 extern void subsegs_finish PARAMS ((void));
 extern void write_object_file PARAMS ((void));
-extern long relax_frag PARAMS ((fragS *, long));
+extern long relax_frag PARAMS ((segT, fragS *, long));
 extern void relax_segment
   PARAMS ((struct frag * seg_frag_root, segT seg_type));