patches/binutils/2.19/150-warn-textrel.patch
author Arnaud Lacombe <lacombar@gmail.com>
Tue Aug 03 06:17:51 2010 +0200 (2010-08-03)
changeset 2064 f5ebe8c429dc
permissions -rw-r--r--
libc/uClibc: add uClibc 0.9.30.3

This version has been released a couple of month ago, but it never reached
crosstool-ng tree. This may be linked to the fact that the current 0.9.30.2,
once patched, has nothing much different from 0.9.30.3, released.

I'm not including any patch with this upgrade, on purpose.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
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Original patch from Gentoo:
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gentoo/src/patchsets/binutils/2.19/66_all_binutils-2.18.50.0.2-warn-textrel.patch
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textrels are bad for forcing copy-on-write (this affects everyone),
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and for security/runtime code generation, this affects security ppl.
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But in either case, it doesn't matter who needs textrels, it's
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the very fact that they're needed at all.
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diff -durN binutils-2.19.orig/bfd/elflink.c binutils-2.19/bfd/elflink.c
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--- binutils-2.19.orig/bfd/elflink.c	2008-11-23 16:49:47.000000000 +0100
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+++ binutils-2.19/bfd/elflink.c	2008-11-23 16:49:14.000000000 +0100
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@@ -10820,14 +10820,12 @@
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 	goto error_return;
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       /* Check for DT_TEXTREL (late, in case the backend removes it).  */
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-      if (info->warn_shared_textrel && info->shared)
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+      o = bfd_get_section_by_name (dynobj, ".dynamic");
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+      if (info->warn_shared_textrel && o != NULL)
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 	{
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 	  bfd_byte *dyncon, *dynconend;
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 	  /* Fix up .dynamic entries.  */
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-	  o = bfd_get_section_by_name (dynobj, ".dynamic");
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-	  BFD_ASSERT (o != NULL);
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-
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 	  dyncon = o->contents;
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 	  dynconend = o->contents + o->size;
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 	  for (; dyncon < dynconend; dyncon += bed->s->sizeof_dyn)
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@@ -10839,7 +10837,7 @@
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 	      if (dyn.d_tag == DT_TEXTREL)
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 		{
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 		 info->callbacks->einfo
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-		    (_("%P: warning: creating a DT_TEXTREL in a shared object.\n"));
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+		    (_("%P: warning: creating a DT_TEXTREL in object.\n"));
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 		  break;
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 		}
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 	    }
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diff -durN binutils-2.19.orig/ld/ldmain.c binutils-2.19/ld/ldmain.c
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--- binutils-2.19.orig/ld/ldmain.c	2008-08-17 05:12:50.000000000 +0200
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+++ binutils-2.19/ld/ldmain.c	2008-11-23 16:52:37.000000000 +0100
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@@ -274,6 +274,7 @@
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   link_info.relax_pass = 1;
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   link_info.pei386_auto_import = -1;
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   link_info.spare_dynamic_tags = 5;
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+  link_info.warn_shared_textrel = TRUE;
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   link_info.path_separator = ':';
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   ldfile_add_arch ("");