patches/glibc/ports-2.10.1/630-mips_shn_undef-hack.patch
author Trevor Woerner <twoerner@gmail.com>
Wed Nov 16 17:36:17 2011 -0500 (2011-11-16)
changeset 2764 986e90e1ca27
permissions -rw-r--r--
docs: Add strategies for assembling root filesystems.

Expand the documentation for using a crosstool-NG-generated toolchain for
building a root filesystem for a target device.

Signed-off-by: "Trevor Woerner" <twoerner@gmail.com>
yann.morin.1998@anciens.enib.fr: some eye-candy]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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	Hack from Debian to hopefully get sandbox working on mips
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<`Kumba> ths: given the SHN_UNDEF thing is a hack, what's the preferred solution?
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<ths> For fakeroot the simplest trigger is "fakeroot file /bin/ls".
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<ths> `Kumba: I haven't found a better one yet.
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<ths> Probably marker symbols around the stub section, and then exclude it from the link map.
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<ths> This needs a ld change.
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diff -durN glibc-2.10.1.orig/elf/do-lookup.h glibc-2.10.1/elf/do-lookup.h
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--- glibc-2.10.1.orig/elf/do-lookup.h	2009-03-30 23:14:32.000000000 +0200
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+++ glibc-2.10.1/elf/do-lookup.h	2009-11-13 00:51:36.000000000 +0100
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@@ -248,6 +248,12 @@
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 		}
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 	      /* FALLTHROUGH */
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 	    case STB_GLOBAL:
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+#ifdef __mips__
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+	      /* HACK: MIPS marks its lazy evaluation stubs with SHN_UNDEF
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+		 symbols, we skip them. */
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+	      if (sym->st_shndx == SHN_UNDEF)
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+		break;
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+#endif
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 	      /* Global definition.  Just what we need.  */
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 	      result->s = sym;
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 	      result->m = (struct link_map *) map;