53 lines
1.8 KiB
Diff
53 lines
1.8 KiB
Diff
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commit 1f393a11f65dcaa1952bdcaf0317a65a5f8aff9d
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Author: Marek Polacek <polacek@redhat.com>
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Date: Wed Feb 29 15:28:38 2012 +0100
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Always set l_used for vDSO.
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2012-02-29 Marek Polacek <polacek@redhat.com>
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[BZ #13706]
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* elf/rtld.c (dl_main): Always set l_used to 1 for vDSO.
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* elf/Makefile: Add rules to run tst-unused-dep.out.
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diff --git a/elf/Makefile b/elf/Makefile
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index 8234ba7..25ffc57 100644
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--- a/elf/Makefile
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+++ b/elf/Makefile
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@@ -1203,3 +1203,14 @@ $(objpfx)tst-relsort1mod1.so: $(libm) $(objpfx)tst-relsort1mod2.so
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$(objpfx)tst-relsort1mod2.so: $(libm)
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$(objpfx)tst-relsort1.out: $(objpfx)tst-relsort1mod1.so \
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$(objpfx)tst-relsort1mod2.so
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+
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+tests: $(objpfx)tst-unused-dep.out
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+
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+$(objpfx)tst-unused-dep.out: $(objpfx)testobj1.so
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+ LD_TRACE_LOADED_OBJECTS=1 \
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+ LD_DEBUG=unused \
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+ LD_PRELOAD= \
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+ $(elf-objpfx)${rtld-installed-name} \
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+ --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \
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+ $< > $@
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+ cmp $@ /dev/null > /dev/null
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diff --git a/elf/rtld.c b/elf/rtld.c
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index 2e4f97f..3e15447 100644
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--- a/elf/rtld.c
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+++ b/elf/rtld.c
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@@ -1,5 +1,5 @@
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/* Run time dynamic linker.
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- Copyright (C) 1995-2010, 2011 Free Software Foundation, Inc.
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+ Copyright (C) 1995-2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@@ -1375,6 +1375,9 @@ of this helper program; chances are you did not intend to run this program.\n\
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_dl_setup_hash (l);
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l->l_relocated = 1;
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+ /* The vDSO is always used. */
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+ l->l_used = 1;
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+
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/* Initialize l_local_scope to contain just this map. This allows
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the use of dl_lookup_symbol_x to resolve symbols within the vdso.
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So we create a single entry list pointing to l_real as its only
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