commit b3fbfe81961a1d14d7b54d1c9757e1f487073bcb

Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>

Date:   Tue Feb 12 13:51:43 2019 +0100

    elf: Test for LD_AUDIT module returning zero from la_version [BZ #24122]

    This includes the original test case from commit

    8e889c5da3c5981c5a46a93fec02de40131ac5a6 ("elf: Fix LD_AUDIT for

    modules with invalid version (BZ#24122)).

Conflicts:

	elf/Makefile

	  (Different backport order of tests.)

diff --git a/elf/Makefile b/elf/Makefile

index 6d1962b2e4deb871..4e1356b9172aee02 100644

--- a/elf/Makefile

+++ b/elf/Makefile

@@ -191,6 +191,7 @@ tests += restest1 preloadtest loadfail multiload origtest resolvfail \

 	 tst-nodelete2 tst-audit11 tst-audit12 tst-dlsym-error tst-noload \

 	 tst-latepthread tst-tls-manydynamic tst-nodelete-dlclose \

 	 tst-debug1 tst-main1 tst-absolute-sym tst-absolute-zero tst-big-note \

+	 tst-audit13 \

 	 tst-sonamemove-link tst-sonamemove-dlopen tst-initfinilazyfail \

 	 tst-dlopenfail tst-dlopenfail-2 \

 	 tst-filterobj tst-filterobj-dlopen tst-auxobj tst-auxobj-dlopen

@@ -300,7 +301,7 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \

 		tst-nodelete-dlclose-dso tst-nodelete-dlclose-plugin \

 		tst-main1mod tst-libc_dlvsym-dso tst-absolute-sym-lib \

 		tst-absolute-zero-lib tst-big-note-lib \

-		tst-sonamemove-linkmod1 \

+		tst-audit13mod1 tst-sonamemove-linkmod1 \

 		tst-sonamemove-runmod1 tst-sonamemove-runmod2 \

 		tst-initlazyfailmod tst-finilazyfailmod \

 		tst-dlopenfailmod1 tst-dlopenfaillinkmod tst-dlopenfailmod2 \

@@ -1428,6 +1429,10 @@ tst-audit12-ENV = LD_AUDIT=$(objpfx)tst-auditmod12.so

 $(objpfx)tst-audit12mod1.so: $(objpfx)tst-audit12mod2.so

 LDFLAGS-tst-audit12mod2.so = -Wl,--version-script=tst-audit12mod2.map

+$(objpfx)tst-audit13.out: $(objpfx)tst-audit13mod1.so

+LDFLAGS-tst-audit13mod1.so = -Wl,-z,lazy

+tst-audit13-ENV = LD_AUDIT=$(objpfx)tst-audit13mod1.so

+

 # tst-sonamemove links against an older implementation of the library.

 LDFLAGS-tst-sonamemove-linkmod1.so = \

   -Wl,--version-script=tst-sonamemove-linkmod1.map \

diff --git a/elf/tst-audit13.c b/elf/tst-audit13.c

new file mode 100644

index 0000000000000000..6f587baf581ce32c

--- /dev/null

+++ b/elf/tst-audit13.c

@@ -0,0 +1,28 @@

+/* Check for invalid audit version (BZ#24122).

+   Copyright (C) 2019 Free Software Foundation, Inc.

+   This file is part of the GNU C Library.

+

+   The GNU C Library is free software; you can redistribute it and/or

+   modify it under the terms of the GNU Lesser General Public

+   License as published by the Free Software Foundation; either

+   version 2.1 of the License, or (at your option) any later version.

+

+   The GNU C Library is distributed in the hope that it will be useful,

+   but WITHOUT ANY WARRANTY; without even the implied warranty of

+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+   Lesser General Public License for more details.

+

+   You should have received a copy of the GNU Lesser General Public

+   License along with the GNU C Library; if not, see

+   <http://www.gnu.org/licenses/>.  */

+

+#include <stdio.h>

+

+static int

+do_test (void)

+{

+  puts ("plt call");

+  return 0;

+}

+

+#include <support/test-driver.c>

diff --git a/elf/tst-audit13mod1.c b/elf/tst-audit13mod1.c

new file mode 100644

index 0000000000000000..cf017e235c7ae030

--- /dev/null

+++ b/elf/tst-audit13mod1.c

@@ -0,0 +1,93 @@

+/* Check for invalid audit version (BZ#24122).

+   Copyright (C) 2019 Free Software Foundation, Inc.

+   This file is part of the GNU C Library.

+

+   The GNU C Library is free software; you can redistribute it and/or

+   modify it under the terms of the GNU Lesser General Public

+   License as published by the Free Software Foundation; either

+   version 2.1 of the License, or (at your option) any later version.

+

+   The GNU C Library is distributed in the hope that it will be useful,

+   but WITHOUT ANY WARRANTY; without even the implied warranty of

+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+   Lesser General Public License for more details.

+

+   You should have received a copy of the GNU Lesser General Public

+   License along with the GNU C Library; if not, see

+   <http://www.gnu.org/licenses/>.  */

+

+#include <link.h>

+#include <stdlib.h>

+

+unsigned int

+la_version (unsigned int version)

+{

+  /* The audit specification says that a version of 0 or a version

+     greater than any version supported by the dynamic loader shall

+     cause the module to be ignored.  */

+  return 0;

+}

+

+void

+la_activity (uintptr_t *cookie, unsigned int flag)

+{

+  exit (EXIT_FAILURE);

+}

+

+char *

+la_objsearch (const char *name, uintptr_t *cookie, unsigned int flag)

+{

+  exit (EXIT_FAILURE);

+}

+

+unsigned int

+la_objopen (struct link_map *map, Lmid_t lmid, uintptr_t * cookie)

+{

+  exit (EXIT_FAILURE);

+}

+

+void

+la_preinit (uintptr_t * cookie)

+{

+  exit (EXIT_FAILURE);

+}

+

+uintptr_t

+#if __ELF_NATIVE_CLASS == 32

+la_symbind32 (Elf32_Sym *sym, unsigned int ndx, uintptr_t *refcook,

+              uintptr_t *defcook, unsigned int *flags, const char *symname)

+#else

+la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook,

+              uintptr_t *defcook, unsigned int *flags, const char *symname)

+#endif

+{

+  exit (EXIT_FAILURE);

+}

+

+unsigned int

+la_objclose (uintptr_t * cookie)

+{

+  exit (EXIT_FAILURE);

+}

+

+#include <tst-audit.h>

+#if (!defined (pltenter) || !defined (pltexit) || !defined (La_regs) \

+     || !defined (La_retval) || !defined (int_retval))

+# error "architecture specific code needed in sysdeps/CPU/tst-audit.h"

+#endif

+

+ElfW(Addr)

+pltenter (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,

+          uintptr_t *defcook, La_regs *regs, unsigned int *flags,

+          const char *symname, long int *framesizep)

+{

+  exit (EXIT_FAILURE);

+}

+

+unsigned int

+pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,

+         uintptr_t *defcook, const La_regs *inregs, La_retval *outregs,

+         const char *symname)

+{

+  exit (EXIT_FAILURE);

+}