From: Alan Modra <amodra@bigpond.net.au>
To: Kris Warkentin <kewarken@qnx.com>
Cc: Gcc ML <gcc@gcc.gnu.org>, binutils@sources.redhat.com
Subject: Re: ppc problem with .rodata.str1.4. binutils requirement for gcc 3.3.1?
Date: Sat, 29 Nov 2003 01:42:00 -0000 [thread overview]
Message-ID: <20031129014255.GT2508@bubble.sa.bigpond.net.au> (raw)
In-Reply-To: <087e01c3b5da$77d658e0$0202040a@catdog>
On Fri, Nov 28, 2003 at 01:07:21PM -0500, Kris Warkentin wrote:
> In the course of building some powerpc startup code we found ld complaining
> about "allocated section `.rodata.str1.4' not in segment" and "allocated
> section `.eh_frame' not in segment". I observed that some of the objects in
> the startup had .rodata.str1.4 sections in them. I also observed that if I
> took the ld from binutils 2.12.1 to 2.14, the problem went away.
This is very likely a bug in gcc. I reckon that if you look at your
object file with readelf or objdump, you'll find that this .rodata
section is marked read/write.
The fix is easy.
--- gcc-ppc64-33.orig/gcc/config/rs6000/rs6000.c 2003-09-27 10:07:41.000000000 +0930
+++ gcc-ppc64-33/gcc/config/rs6000/rs6000.c 2003-11-29 12:04:22.000000000 +1030
@@ -13138,14 +13659,8 @@ rs6000_elf_section_type_flags (decl, nam
const char *name;
int reloc;
{
- unsigned int flags
- = default_section_type_flags_1 (decl, name, reloc,
- flag_pic || DEFAULT_ABI == ABI_AIX);
-
- if (TARGET_RELOCATABLE)
- flags |= SECTION_WRITE;
-
- return flags;
+ return default_section_type_flags_1 (decl, name, reloc,
+ flag_pic || DEFAULT_ABI == ABI_AIX);
}
/* Record an element in the table of global constructors. SYMBOL is
> I didn't find any talk of a hard binutils requirement for the 3.3 series of
> gcc but perhaps I missed it. Can anyone shed some light on this? I hope
> I'm not too astonishing in my ignorance but this .rodata.str1.x doesn't seem
> to be generated by our older gcc and I don't really know what the
> significance of it all is.
Sections like .rodata.str1.4 are generated by gcc to support merging of
duplicate constants and strings by ld. Older gcc's won't do this, nor
will a newer gcc built for a system without the requisite ld support.
--
Alan Modra
IBM OzLabs - Linux Technology Centre
next parent reply other threads:[~2003-11-29 1:42 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <087e01c3b5da$77d658e0$0202040a@catdog>
2003-11-29 1:42 ` Alan Modra [this message]
2003-11-29 18:14 ` Kris Warkentin
[not found] <44D2755E.9020600@us.ibm.com>
2006-08-04 1:30 ` Link problems with section anchors Alan Modra
2006-08-04 9:04 ` Richard Sandiford
2006-08-04 13:53 ` Steven Munroe
2006-08-04 13:54 ` David Edelsohn
2006-08-04 14:01 ` Richard Sandiford
2006-08-04 14:12 ` David Edelsohn
[not found] <3A3FC75F7C72D711A7DC009027AC9C4B1788D9@jupiter>
2004-05-19 3:30 ` Powerpc Linux build fails Alan Modra
2004-05-19 4:27 ` Geoff Keating
2004-05-19 5:10 ` Alan Modra
2004-05-19 16:24 ` Kumar Gala
2004-05-20 0:44 ` Alan Modra
2003-11-28 18:21 ppc problem with .rodata.str1.4. binutils requirement for gcc 3.3.1? Kris Warkentin
-- strict thread matches above, loose matches on Subject: below --
2001-12-31 19:09 Compiling kernel 2.4.17 fails at link stage Krishnakumar B
2002-01-04 3:50 ` Alan Modra
2002-01-04 12:39 ` [Linux-ia64] " Alan Modra
2001-10-24 18:26 Release 2.12 Hans-Peter Nilsson
2001-10-24 18:38 ` Alan Modra
2001-10-24 18:43 ` David O'Brien
2001-10-24 19:30 ` Alan Modra
2001-10-24 19:35 ` MMIX (was: Re: Release 2.12) Hans-Peter Nilsson
2001-10-24 21:45 ` Release 2.12 Eric Christopher
2001-10-25 8:41 ` H . J . Lu
2001-10-25 8:47 ` H . J . Lu
2001-10-24 18:49 ` Daniel Jacobowitz
2001-10-24 19:43 ` Alan Modra
2001-10-24 20:10 ` Daniel Jacobowitz
2001-10-24 20:35 ` Alan Modra
2001-10-24 20:44 ` Daniel Jacobowitz
2001-10-25 5:09 ` Christopher C. Chimelis
2001-10-25 1:56 ` Philip Blundell
2001-10-25 8:30 ` H . J . Lu
2001-10-25 8:47 ` David O'Brien
[not found] ` <amodra@bigpond.net.au>
2002-01-04 17:42 ` [Linux-ia64] Compiling kernel 2.4.17 fails at link stage Grant Grundler
2002-01-04 17:59 ` H . J . Lu
2002-01-04 20:37 ` Grant Grundler
2002-01-04 22:39 ` H . J . Lu
2002-01-07 12:52 ` Grant Grundler
2002-01-04 19:21 ` Alan Modra
2003-11-29 2:33 ` ppc problem with .rodata.str1.4. binutils requirement for gcc 3.3.1? David Edelsohn
2003-11-29 3:05 ` Alan Modra
2003-11-29 4:06 ` David Edelsohn
2003-11-29 4:10 ` Andrew Pinski
2003-11-29 4:20 ` David Edelsohn
2003-11-29 6:47 ` Alan Modra
2003-11-29 19:40 ` David Edelsohn
2004-05-19 15:19 ` Powerpc Linux build fails David Edelsohn
2004-05-20 0:39 ` Alan Modra
2004-05-20 1:24 ` Alan Modra
2004-05-20 1:46 ` Alan Modra
2004-05-20 2:29 ` David Edelsohn
2004-05-20 3:10 ` Alan Modra
2006-08-04 1:49 ` Link problems with section anchors David Edelsohn
2006-08-04 2:04 ` Alan Modra
2001-10-24 19:37 ` Release 2.12 Russ Allbery
2001-10-24 19:52 ` Alan Modra
2001-10-25 0:46 ` H . J . Lu
2001-10-25 8:57 ` David O'Brien
2001-10-25 9:38 ` H . J . Lu
2001-10-25 9:44 ` H . J . Lu
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