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Subject: RE: excessive stab information
Date: Thu, 28 Apr 2005 15:21:00 -0000
Message-ID: <89E85E0168AD994693B574C80EDB9C2701D6A3CD@uk-email.terastack.bluearc.com>
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From: "Andy Chittenden" <AChittenden@bluearc.com>
To: "Dave Korn" <dave.korn@artimi.com>,
	"Ian Lance Taylor" <ian@airs.com>
Cc: <binutils@sourceware.org>,
	"Martin Dorey" <mdorey@bluearc.com>
X-SW-Source: 2005-04/txt/msg00850.txt.bz2

I've now sorted out our #includes so that no header file defines a type
within a #ifdef. This did save around 3% on the size of an elf so thanks
for that suggestion. However, we still have massive stabs. Further
analysis of the output of objdump --stabs led me to develop this patch
to bfd/stabs.c which removes a further 2%: is it ok to apply?

cvs diff: Diffing .
Index: stabs.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /cvs/src/src/bfd/stabs.c,v
retrieving revision 1.22
diff -c -w -u -r1.22 stabs.c
cvs diff: conflicting specifications of output style
--- stabs.c     11 Apr 2005 08:23:04 -0000      1.22
+++ stabs.c     28 Apr 2005 15:01:39 -0000
@@ -27,6 +27,8 @@
 #include "libbfd.h"
 #include "aout/stab_gnu.h"
 #include "safe-ctype.h"
+#include <limits.h>
+#include <stdlib.h>
=20
 /* Stabs entries use a 12 byte format:
      4 byte string table index
@@ -298,6 +300,10 @@
          struct stab_link_includes_entry * incl_entry;
          struct stab_link_includes_totals * t;
          struct stab_excl_list * ne;
+          char resolved_path[PATH_MAX];
+=20=20=20=20=20=20=20=20=20=20
+          if (realpath(string, resolved_path) !=3D 0)
+            string =3D resolved_path;
=20
          symb =3D symb_rover =3D NULL;
          sum_chars =3D num_chars =3D 0;

--=20
Andy, BlueArc Engineering