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Skip audit if l_reloc_result is NULL
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13
ChangeLog
13
ChangeLog
@ -1,3 +1,16 @@
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2012-11-14 H.J. Lu <hongjiu.lu@intel.com>
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[BZ #14831]
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* elf/Makefile (tests): Add tst-audit8.
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($(objpfx)tst-audit8): Also depend on $(common-objpfx)math/libm.so.
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($(objpfx)tst-audit8.out): New target.
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(tst-audit8-ENV): New variable.
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* elf/dl-runtime.c (_dl_profile_fixup): Call _dl_fixup to skip
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audit if l_reloc_result is NULL.
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(ELF_MACHINE_RUNTIME_FIXUP_PARAMS): Issue an error if it isn't
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defined and ELF_MACHINE_RUNTIME_FIXUP_ARGS is defined.
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* elf/tst-audit8.c: New file.
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2012-11-14 Marcus Shawcroft <marcus.shawcroft@linaro.org>
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2012-11-14 Marcus Shawcroft <marcus.shawcroft@linaro.org>
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* io/Makefile (CFLAGS-open.c, CFLAGS-open64.c): Define.
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* io/Makefile (CFLAGS-open.c, CFLAGS-open64.c): Define.
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2
NEWS
2
NEWS
@ -19,7 +19,7 @@ Version 2.17
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14562, 14568, 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621,
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14562, 14568, 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621,
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14638, 14645, 14648, 14652, 14660, 14661, 14669, 14683, 14694, 14716,
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14638, 14645, 14648, 14652, 14660, 14661, 14669, 14683, 14694, 14716,
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14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14805,
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14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14805,
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14807, 14809, 14811, 14815, 14821, 14824, 14838.
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14807, 14809, 14811, 14815, 14821, 14824, 14831, 14838.
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* Port to ARM AArch64 contributed by Linaro.
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* Port to ARM AArch64 contributed by Linaro.
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@ -142,7 +142,7 @@ tests += loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
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tst-dlmodcount tst-dlopenrpath tst-deep1 \
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tst-dlmodcount tst-dlopenrpath tst-deep1 \
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tst-dlmopen1 tst-dlmopen2 tst-dlmopen3 \
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tst-dlmopen1 tst-dlmopen2 tst-dlmopen3 \
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unload3 unload4 unload5 unload6 unload7 unload8 tst-global1 order2 \
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unload3 unload4 unload5 unload6 unload7 unload8 tst-global1 order2 \
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tst-audit1 tst-audit2 \
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tst-audit1 tst-audit2 tst-audit8 \
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tst-stackguard1 tst-addr1 tst-thrlock \
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tst-stackguard1 tst-addr1 tst-thrlock \
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tst-unique1 tst-unique2 tst-unique3 tst-unique4 \
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tst-unique1 tst-unique2 tst-unique3 tst-unique4 \
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tst-initorder tst-initorder2 tst-relsort1
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tst-initorder tst-initorder2 tst-relsort1
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@ -1020,6 +1020,10 @@ $(objpfx)tst-audit7: $(objpfx)tst-auditmod7a.so
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$(objpfx)tst-audit7.out: $(objpfx)tst-auditmod7b.so
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$(objpfx)tst-audit7.out: $(objpfx)tst-auditmod7b.so
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tst-audit7-ENV = LD_AUDIT=$(objpfx)tst-auditmod7b.so
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tst-audit7-ENV = LD_AUDIT=$(objpfx)tst-auditmod7b.so
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$(objpfx)tst-audit8: $(common-objpfx)math/libm.so
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$(objpfx)tst-audit8.out: $(objpfx)tst-auditmod1.so
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tst-audit8-ENV = LD_AUDIT=$(objpfx)tst-auditmod1.so
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$(objpfx)tst-global1: $(libdl)
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$(objpfx)tst-global1: $(libdl)
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$(objpfx)tst-global1.out: $(objpfx)testobj6.so $(objpfx)testobj2.so
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$(objpfx)tst-global1.out: $(objpfx)testobj6.so $(objpfx)testobj2.so
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@ -1,5 +1,5 @@
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/* On-demand PLT fixup for shared objects.
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/* On-demand PLT fixup for shared objects.
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Copyright (C) 1995-2009, 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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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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The GNU C Library is free software; you can redistribute it and/or
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@ -164,6 +164,26 @@ _dl_profile_fixup (
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{
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{
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void (*mcount_fct) (ElfW(Addr), ElfW(Addr)) = INTUSE(_dl_mcount);
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void (*mcount_fct) (ElfW(Addr), ElfW(Addr)) = INTUSE(_dl_mcount);
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if (l->l_reloc_result == NULL)
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{
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/* BZ #14843: ELF_DYNAMIC_RELOCATE is called before l_reloc_result
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is allocated. We will get here if ELF_DYNAMIC_RELOCATE calls a
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resolver function to resolve an IRELATIVE relocation and that
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resolver calls a function that is not yet resolved (lazy). For
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example, the resolver in x86-64 libm.so calls __get_cpu_features
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defined in libc.so. Skip audit and resolve the external function
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in this case. */
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*framesizep = -1;
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return _dl_fixup (
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# ifdef ELF_MACHINE_RUNTIME_FIXUP_ARGS
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# ifndef ELF_MACHINE_RUNTIME_FIXUP_PARAMS
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# error Please define ELF_MACHINE_RUNTIME_FIXUP_PARAMS.
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# endif
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ELF_MACHINE_RUNTIME_FIXUP_PARAMS,
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# endif
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l, reloc_arg);
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}
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/* This is the address in the array where we store the result of previous
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/* This is the address in the array where we store the result of previous
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relocations. */
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relocations. */
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struct reloc_result *reloc_result = &l->l_reloc_result[reloc_index];
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struct reloc_result *reloc_result = &l->l_reloc_result[reloc_index];
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1
elf/tst-audit8.c
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1
elf/tst-audit8.c
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@ -0,0 +1 @@
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#include "../io/pwd.c"
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