patches/binutils/2.19/150-warn-textrel.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Dec 18 22:55:56 2010 +0100 (2010-12-18)
changeset 2309 2e0f0757289d
permissions -rw-r--r--
comptools: install them side-to-side with build tools

As companion tools might or might not be used to build each
toolchain, they do belong to that toolchain's build tools,
not to the generic override tools.

Fix a typo in the autoconf URL.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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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 ("");