Merge commit 'origin/master' into fedora/master

Conflicts:
	ChangeLog
	sysdeps/unix/sysv/linux/i386/sysconf.c
	sysdeps/x86_64/cacheinfo.c
	version.h

28 files changed, 801 insertions, 11 deletions

diff --git a/elf/.cvsignore b/elf/.cvsignore
deleted file mode 100644
index 3fc9f4cdf1..0000000000
--- a/elf/.cvsignore
+++ /dev/null
@@ -1,6 +0,0 @@
-*.d *.o *.so *.po *.go stamp.* *.stamp *.ustamp *.udeps
-*.gz *.Z *.tar *.tgz
-=*
-TODO COPYING* AUTHORS copyr-* copying.*
-glibc-*
-distinfo
diff --git a/elf/Makefile b/elf/Makefile
index e44ff1d382..6bcbb5142f 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -93,7 +93,16 @@ distribute	:= rtld-Rules \
 		   order2mod1.c order2mod2.c order2mod3.c order2mod4.c \
 		   tst-stackguard1.c tst-stackguard1-static.c \
 		   tst-array5.c tst-array5-static.c tst-array5dep.c \
-		   tst-array5.exp tst-leaks1.c
+		   tst-array5.exp tst-leaks1.c check-execstack.c \
+		   ifuncmain1.c ifuncmain1pic.c ifuncmain1vis.c \
+		   ifuncmain1vispic.c ifuncmain1static.c \
+		   ifuncmain1staticpic.c ifuncmain1picstatic.c \
+		   ifuncdep1.c ifuncdep1pic.c ifuncmod1.c \
+		   ifuncmain1pie.c ifuncmain1vispie.c \
+		   ifuncmain2.c ifuncmain2static.c ifuncdep2.c \
+		   ifuncmain2pic.c ifuncmain2picstatic.c ifuncdep2pic.c \
+		   ifuncmain3.c ifuncmod3.c \
+		   ifuncmain4.c ifuncmain4static.c ifuncmain4picstatic.c
 
 CFLAGS-dl-runtime.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-dl-lookup.c = -fexceptions -fasynchronous-unwind-tables
@@ -232,6 +241,22 @@ test-extras += $(modules-names)
 # filtmod1.so has a special rule
 modules-names-nobuild := filtmod1
 
+ifeq (yes,$(multi-arch))
+tests-static += ifuncmain1static ifuncmain1picstatic \
+		ifuncmain2static ifuncmain2picstatic \
+		ifuncmain4static ifuncmain4picstatic
+
+ifeq (yes,$(build-shared))
+tests += ifuncmain1 ifuncmain1pic ifuncmain1vis ifuncmain1vispic \
+	 ifuncmain1staticpic \
+	 ifuncmain2 ifuncmain2pic ifuncmain3 ifuncmain4
+ifeq (yes,$(have-fpie))
+tests: $(objpfx)ifuncmain1pie.out $(objpfx)ifuncmain1vispie.out
+endif
+modules-names += ifuncmod1 ifuncmod3
+endif
+endif
+
 
 include ../Rules
 
@@ -504,6 +529,7 @@ reldep8mod2.so-no-z-defs = yes
 reldep9mod1.so-no-z-defs = yes
 unload3mod4.so-no-z-defs = yes
 unload4mod1.so-no-z-defs = yes
+ifuncmod1.so-no-z-defs = yes
 
 ifeq ($(build-shared),yes)
 # Build all the modules even when not actually running test programs.
@@ -842,12 +868,16 @@ check-textrel-CFLAGS = -O -Wall -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
 $(objpfx)check-textrel: check-textrel.c
 	$(native-compile)
 
+check-execstack-CFLAGS = -O -Wall -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -std=gnu99
+$(objpfx)check-execstack: check-execstack.c
+	$(native-compile)
+
 check-localplt-CFLAGS = -O -Wall -D_GNU_SOURCE -std=gnu99
 $(objpfx)check-localplt: check-localplt.c
 	$(native-compile)
 
 ifeq (yes,$(build-shared))
-tests: $(objpfx)check-textrel.out
+tests: $(objpfx)check-textrel.out $(objpfx)check-execstack.out
 
 $(objpfx)check-textrel.out: $(objpfx)check-textrel
 	$(dir $<)$(notdir $<) $(common-objpfx)libc.so \
@@ -855,6 +885,12 @@ $(objpfx)check-textrel.out: $(objpfx)check-textrel
 			    $(common-objpfx)iconvdata/*.so)) > $@
 generated += check-textrel check-textrel.out
 
+$(objpfx)check-execstack.out: $(objpfx)check-execstack
+	$(dir $<)$(notdir $<) $(common-objpfx)libc.so \
+	  $(sort $(wildcard $(common-objpfx)*/lib*.so \
+			    $(common-objpfx)iconvdata/*.so)) > $@
+generated += check-execstack check-execstack.out
+
 $(objpfx)tst-dlmodcount: $(libdl)
 $(objpfx)tst-dlmodcount.out: $(test-modules)
 
@@ -941,3 +977,69 @@ tst-leaks1-ENV = MALLOC_TRACE=$(objpfx)tst-leaks1.mtrace
 $(objpfx)tst-addr1: $(libdl)
 
 $(objpfx)tst-thrlock: $(libdl) $(shared-thread-library)
+
+CFLAGS-ifuncmain1pic.c += $(pic-ccflag)
+CFLAGS-ifuncmain1picstatic.c += $(pic-ccflag)
+CFLAGS-ifuncmain1staticpic.c += $(pic-ccflag)
+CFLAGS-ifuncdep1pic.c += $(pic-ccflag)
+CFLAGS-ifuncmain1vispic.c += $(pic-ccflag)
+CFLAGS-ifuncmain2pic.c += $(pic-ccflag)
+CFLAGS-ifuncmain2picstatic.c += $(pic-ccflag)
+CFLAGS-ifuncdep2pic.c += $(pic-ccflag)
+CFLAGS-ifuncmain4picstatic.c += $(pic-ccflag)
+
+LDFLAGS-ifuncmain3 = -Wl,-export-dynamic
+
+ifeq (yesyes,$(have-fpie)$(build-shared))
+CFLAGS-ifuncmain1pie.c += $(pie-ccflag)
+CFLAGS-ifuncmain1vispie.c += $(pie-ccflag)
+
+$(objpfx)ifuncmain1pie.out: $(objpfx)ifuncmain1pie
+	$(elf-objpfx)$(rtld-installed-name) \
+	  --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \
+	  $< > $@
+
+$(objpfx)ifuncmain1pie: $(objpfx)ifuncmain1pie.o $(objpfx)ifuncmod1.so
+	$(LINK.o) -pie -Wl,-O1 \
+	  $(sysdep-LDFLAGS) $(config-LDFLAGS) \
+	  $(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
+	  $(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
+	  $(LDFLAGS) $(LDFLAGS-$(@F)) \
+	  -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
+	  -o $@ $(objpfx)tst-pie1.o $(objpfx)tst-piemod1.so \
+	  $(common-objpfx)libc_nonshared.a
+
+generated += ifuncmain1pie ifuncmain1pie.out
+
+$(objpfx)ifuncmain1vispie.out: $(objpfx)ifuncmain1vispie
+	$(elf-objpfx)$(rtld-installed-name) \
+	  --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \
+	  $< > $@
+
+$(objpfx)ifuncmain1vispie: $(objpfx)ifuncmain1vispie.o $(objpfx)ifuncmod1.so
+	$(LINK.o) -pie -Wl,-O1 \
+	  $(sysdep-LDFLAGS) $(config-LDFLAGS) \
+	  $(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
+	  $(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
+	  $(LDFLAGS) $(LDFLAGS-$(@F)) \
+	  -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
+	  -o $@ $(objpfx)tst-pie1.o $(objpfx)tst-piemod1.so \
+	  $(common-objpfx)libc_nonshared.a
+
+generated += ifuncmain1vispie ifuncmain1vispie.out
+endif
+
+$(objpfx)ifuncmain1: $(addprefix $(objpfx),ifuncmod1.so)
+$(objpfx)ifuncmain1pic: $(addprefix $(objpfx),ifuncmod1.so)
+$(objpfx)ifuncmain1staticpic: $(addprefix $(objpfx),ifuncdep1pic.o)
+$(objpfx)ifuncmain1static: $(addprefix $(objpfx),ifuncdep1.o)
+$(objpfx)ifuncmain1picstatic: $(addprefix $(objpfx),ifuncdep1pic.o)
+$(objpfx)ifuncmain1vis: $(addprefix $(objpfx),ifuncmod1.so)
+$(objpfx)ifuncmain1vispic: $(addprefix $(objpfx),ifuncmod1.so)
+$(objpfx)ifuncmain2: $(addprefix $(objpfx),ifuncdep2.o)
+$(objpfx)ifuncmain2pic: $(addprefix $(objpfx),ifuncdep2pic.o)
+$(objpfx)ifuncmain2static: $(addprefix $(objpfx),ifuncdep2.o)
+$(objpfx)ifuncmain2picstatic: $(addprefix $(objpfx),ifuncdep2pic.o)
+
+$(objpfx)ifuncmain3: $(libdl)
+$(objpfx)ifuncmain3.out: $(objpfx)ifuncmod3.so
diff --git a/elf/check-execstack.c b/elf/check-execstack.c
new file mode 100644
index 0000000000..55cf48721a
--- /dev/null
+++ b/elf/check-execstack.c
@@ -0,0 +1,158 @@
+/* Check for executable stacks in DSOs.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contribute by Ulrich Drepper <drepper@redhat.com>. 2009.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <byteswap.h>
+#include <elf.h>
+#include <endian.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+#ifdef BITS
+
+# define AB(name) _AB (name, BITS)
+# define _AB(name, bits) __AB (name, bits)
+# define __AB(name, bits) name##bits
+# define E(name) _E (name, BITS)
+# define _E(name, bits) __E (name, bits)
+# define __E(name, bits) Elf##bits##_##name
+# define SWAP(val) \
+  ({ __typeof (val) __res;						      \
+     if (((ehdr.e_ident[EI_DATA] == ELFDATA2MSB				      \
+	   && BYTE_ORDER == LITTLE_ENDIAN)				      \
+	  || (ehdr.e_ident[EI_DATA] == ELFDATA2LSB			      \
+	      && BYTE_ORDER == BIG_ENDIAN))				      \
+	 && sizeof (val) != 1)						      \
+       {								      \
+	 if (sizeof (val) == 2)						      \
+	   __res = bswap_16 (val);					      \
+	 else if (sizeof (val) == 4)					      \
+	   __res = bswap_32 (val);					      \
+	 else								      \
+	   __res = bswap_64 (val);					      \
+       }								      \
+     else								      \
+       __res = (val);							      \
+     __res; })
+
+
+static int
+AB(handle_file) (const char *fname, int fd)
+{
+  E(Ehdr) ehdr;
+
+  if (pread (fd, &ehdr, sizeof (ehdr), 0) != sizeof (ehdr))
+    {
+    read_error:
+      printf ("%s: read error: %m\n", fname);
+      return 1;
+    }
+
+  const size_t phnum = SWAP (ehdr.e_phnum);
+  const size_t phentsize = SWAP (ehdr.e_phentsize);
+
+  /* Read the program header.  */
+  E(Phdr) *phdr = alloca (phentsize * phnum);
+  if (pread (fd, phdr, phentsize * phnum, SWAP (ehdr.e_phoff))
+      != phentsize * phnum)
+    goto read_error;
+
+  /* Search for the PT_GNU_STACK entry.  */
+  for (size_t cnt = 0; cnt < phnum; ++cnt)
+    if (SWAP (phdr[cnt].p_type) == PT_GNU_STACK)
+      {
+	unsigned int flags = SWAP(phdr[cnt].p_flags);
+	if (flags & PF_X)
+	  {
+	    printf ("%s: executable stack signaled\n", fname);
+	    return 1;
+	  }
+
+	return 0;
+      }
+
+  printf ("%s: no PT_GNU_STACK entry\n", fname);
+  return 1;
+}
+
+# undef BITS
+#else
+
+# define BITS 32
+# include "check-execstack.c"
+
+# define BITS 64
+# include "check-execstack.c"
+
+
+static int
+handle_file (const char *fname)
+{
+  int fd = open (fname, O_RDONLY);
+  if (fd == -1)
+    {
+      printf ("cannot open %s: %m\n", fname);
+      return 1;
+    }
+
+  /* Read was is supposed to be the ELF header.  Read the initial
+     bytes to determine whether this is a 32 or 64 bit file.  */
+  char ident[EI_NIDENT];
+  if (read (fd, ident, EI_NIDENT) != EI_NIDENT)
+    {
+      printf ("%s: read error: %m\n", fname);
+      close (fd);
+      return 1;
+    }
+
+  if (memcmp (&ident[EI_MAG0], ELFMAG, SELFMAG) != 0)
+    {
+      printf ("%s: not an ELF file\n", fname);
+      close (fd);
+      return 1;
+    }
+
+  int result;
+  if (ident[EI_CLASS] == ELFCLASS64)
+    result = handle_file64 (fname, fd);
+  else
+    result = handle_file32 (fname, fd);
+
+  close (fd);
+
+  return result;
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  int cnt;
+  int result = 0;
+
+  for (cnt = 1; cnt < argc; ++cnt)
+    result |= handle_file (argv[cnt]);
+
+  return result;
+}
+#endif
diff --git a/elf/dl-sysdep.c b/elf/dl-sysdep.c
index db1001253c..5700272f10 100644
--- a/elf/dl-sysdep.c
+++ b/elf/dl-sysdep.c
@@ -335,7 +335,7 @@ _dl_show_auxv (void)
 
       /* Unknown value: print a generic line.  */
       char buf2[17];
-      buf[sizeof (buf2) - 1] = '\0';
+      buf2[sizeof (buf2) - 1] = '\0';
       const char *val2 = _itoa ((unsigned long int) av->a_un.a_val,
 				buf2 + sizeof buf2 - 1, 16, 0);
       const char *val =  _itoa ((unsigned long int) av->a_type,
diff --git a/elf/elf.h b/elf/elf.h
index 062ef00f57..8fdf74b099 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -1177,8 +1177,9 @@ typedef struct
 					   pointer to code and to
 					   argument, returning the TLS
 					   offset for the symbol.  */
+#define R_386_IRELATIVE	   42		/* Adjust indirectly by program base */
 /* Keep this the last entry.  */
-#define R_386_NUM	   42
+#define R_386_NUM	   43
 
 /* SUN SPARC specific definitions.  */
 
@@ -2625,8 +2626,9 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_X86_64_TLSDESC_CALL   35	/* Marker for call through TLS
 					   descriptor.  */
 #define R_X86_64_TLSDESC        36	/* TLS descriptor.  */
+#define R_X86_64_IRELATIVE	37	/* Adjust indirectly by program base */
 
-#define R_X86_64_NUM		37
+#define R_X86_64_NUM		38
 
 
 /* AM33 relocations.  */
diff --git a/elf/ifuncdep1.c b/elf/ifuncdep1.c
new file mode 100644
index 0000000000..77d663dcec
--- /dev/null
+++ b/elf/ifuncdep1.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols without -fPIC.  */
+
+#include "ifuncmod1.c"
diff --git a/elf/ifuncdep1pic.c b/elf/ifuncdep1pic.c
new file mode 100644
index 0000000000..b6381e4868
--- /dev/null
+++ b/elf/ifuncdep1pic.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -fPIC.  */
+
+#include "ifuncmod1.c"
diff --git a/elf/ifuncdep2.c b/elf/ifuncdep2.c
new file mode 100644
index 0000000000..fb21eef5cb
--- /dev/null
+++ b/elf/ifuncdep2.c
@@ -0,0 +1,72 @@
+/* Test 3 STT_GNU_IFUNC symbols.  */
+
+extern int global;
+
+static int
+one (void)
+{
+  return 1;
+}
+
+static int
+minus_one (void)
+{
+  return -1;
+}
+
+static int
+zero (void) 
+{
+  return 0;
+}
+
+void * foo1_ifunc (void) __asm__ ("foo1");
+__asm__(".type foo1, %gnu_indirect_function");
+
+void * 
+foo1_ifunc (void)
+{
+  switch (global)
+    {
+    case 1:
+      return one;
+    case -1:
+      return minus_one;
+    default:
+      return zero;
+    }
+}
+
+void * foo2_ifunc (void) __asm__ ("foo2");
+__asm__(".type foo2, %gnu_indirect_function");
+
+void * 
+foo2_ifunc (void)
+{
+  switch (global)
+    {
+    case 1:
+      return minus_one;
+    case -1:
+      return one;
+    default:
+      return zero;
+    }
+}
+
+void * foo3_ifunc (void) __asm__ ("foo3");
+__asm__(".type foo3, %gnu_indirect_function");
+
+void * 
+foo3_ifunc (void)
+{
+  switch (global)
+    {
+    case 1:
+      return one;
+    case -1:
+      return zero;
+    default:
+      return minus_one;
+    }
+}
diff --git a/elf/ifuncdep2pic.c b/elf/ifuncdep2pic.c
new file mode 100644
index 0000000000..a84253dbc4
--- /dev/null
+++ b/elf/ifuncdep2pic.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -fPIC.  */
+
+#include "ifuncdep2.c"
diff --git a/elf/ifuncmain1.c b/elf/ifuncmain1.c
new file mode 100644
index 0000000000..de7ffe8779
--- /dev/null
+++ b/elf/ifuncmain1.c
@@ -0,0 +1,66 @@
+/* Test STT_GNU_IFUNC symbols:
+
+   1. Direct function call.
+   2. Function pointer.
+   3. Visibility without override.
+ */
+
+#include <stdlib.h>
+
+int global = -1;
+
+int ret_foo;
+int ret_foo_hidden;
+int ret_foo_protected;
+
+extern int foo (void);
+extern int foo_protected (void);
+
+#ifndef FOO_P
+typedef int (*foo_p) (void);
+#endif
+
+foo_p foo_ptr = foo;
+foo_p foo_procted_ptr = foo_protected;
+
+extern foo_p get_foo_p (void);
+extern foo_p get_foo_hidden_p (void);
+extern foo_p get_foo_protected_p (void);
+
+int
+main (void)
+{
+  foo_p p;
+  
+  if (foo_ptr != foo)
+    abort ();
+  if (foo () != -1)
+    abort ();
+  if ((*foo_ptr) () != -1)
+    abort ();
+
+  if (foo_procted_ptr != foo_protected)
+    abort ();
+  if (foo_protected () != 0)
+    abort ();
+  if ((*foo_procted_ptr) () != 0)
+    abort ();
+
+  p = get_foo_p ();
+  if (p != foo)
+    abort ();
+  if (ret_foo != -1 || (*p) () != ret_foo)
+    abort ();
+
+  p = get_foo_hidden_p ();
+  if (ret_foo_hidden != 1 || (*p) () != ret_foo_hidden)
+    abort ();
+
+  p = get_foo_protected_p ();
+  if (p != foo_protected)
+    abort ();
+  if (ret_foo_protected != 0 || (*p) () != ret_foo_protected)
+    abort ();
+
+  return 0;
+}
diff --git a/elf/ifuncmain1pic.c b/elf/ifuncmain1pic.c
new file mode 100644
index 0000000000..db19dc9678
--- /dev/null
+++ b/elf/ifuncmain1pic.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -fPIC.  */
+
+#include "ifuncmain1.c"
diff --git a/elf/ifuncmain1picstatic.c b/elf/ifuncmain1picstatic.c
new file mode 100644
index 0000000000..c937933029
--- /dev/null
+++ b/elf/ifuncmain1picstatic.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -fPIC and -static.  */
+
+#include "ifuncmain1.c"
diff --git a/elf/ifuncmain1pie.c b/elf/ifuncmain1pie.c
new file mode 100644
index 0000000000..c16ef6dd09
--- /dev/null
+++ b/elf/ifuncmain1pie.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with PIE.  */
+
+#include "ifuncmain1.c"
diff --git a/elf/ifuncmain1static.c b/elf/ifuncmain1static.c
new file mode 100644
index 0000000000..fdd1e09024
--- /dev/null
+++ b/elf/ifuncmain1static.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -static.  */
+
+#include "ifuncmain1.c"
diff --git a/elf/ifuncmain1staticpic.c b/elf/ifuncmain1staticpic.c
new file mode 100644
index 0000000000..39e0cbb4b8
--- /dev/null
+++ b/elf/ifuncmain1staticpic.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -fPIC and no DSO.  */
+
+#include "ifuncmain1.c"
diff --git a/elf/ifuncmain1vis.c b/elf/ifuncmain1vis.c
new file mode 100644
index 0000000000..a239d2dd0d
--- /dev/null
+++ b/elf/ifuncmain1vis.c
@@ -0,0 +1,89 @@
+/* Test STT_GNU_IFUNC symbols:
+
+   1. Direct function call.
+   2. Function pointer.
+   3. Visibility with override.
+ */
+
+#include <stdlib.h>
+
+int global = -1;
+
+int ret_foo;
+int ret_foo_hidden;
+int ret_foo_protected;
+
+extern int foo (void);
+extern int foo_protected (void);
+
+#ifndef FOO_P
+typedef int (*foo_p) (void);
+#endif
+
+foo_p foo_ptr = foo;
+foo_p foo_procted_ptr = foo_protected;
+
+extern foo_p get_foo_p (void);
+extern foo_p get_foo_hidden_p (void);
+extern foo_p get_foo_protected_p (void);
+
+int
+__attribute__ ((noinline))
+foo (void)
+{
+  return -30;
+}
+
+int
+__attribute__ ((noinline))
+foo_hidden (void)
+{
+  return -20;
+}
+
+int
+__attribute__ ((noinline))
+foo_protected (void)
+{
+  return -40;
+}
+
+int
+main (void)
+{
+  foo_p p;
+  
+  if (foo_ptr != foo)
+    abort ();
+  if ((*foo_ptr) () != -30)
+    abort ();
+
+  if (foo_procted_ptr != foo_protected)
+    abort ();
+  if ((*foo_procted_ptr) () != -40)
+    abort ();
+
+  p = get_foo_p ();
+  if (p != foo)
+    abort ();
+  if (foo () != -30)
+    abort ();
+  if (ret_foo != -30 || (*p) () != ret_foo)
+    abort ();
+
+  p = get_foo_hidden_p ();
+  if (foo_hidden () != -20)
+    abort ();
+  if (ret_foo_hidden != 1 || (*p) () != ret_foo_hidden)
+    abort ();
+
+  p = get_foo_protected_p ();
+  if (p == foo_protected)
+    abort ();
+  if (foo_protected () != -40)
+    abort ();
+  if (ret_foo_protected != 0 || (*p) () != ret_foo_protected)
+    abort ();
+
+  return 0;
+}
diff --git a/elf/ifuncmain1vispic.c b/elf/ifuncmain1vispic.c
new file mode 100644
index 0000000000..f8c104d560
--- /dev/null
+++ b/elf/ifuncmain1vispic.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -fPIC.  */
+
+#include "ifuncmain1vis.c"
diff --git a/elf/ifuncmain1vispie.c b/elf/ifuncmain1vispie.c
new file mode 100644
index 0000000000..ad06d2ba1c
--- /dev/null
+++ b/elf/ifuncmain1vispie.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with PIE.  */
+
+#include "ifuncmain1vis.c"
diff --git a/elf/ifuncmain2.c b/elf/ifuncmain2.c
new file mode 100644
index 0000000000..cd9b2c8352
--- /dev/null
+++ b/elf/ifuncmain2.c
@@ -0,0 +1,16 @@
+/* Test calling one STT_GNU_IFUNC function with 3 different
+   STT_GNU_IFUNC definitions.  */
+
+#include <stdlib.h>
+
+int global = -1;
+
+extern int foo1 (void);
+
+int
+main (void)
+{
+  if (foo1 () != -1)
+    abort ();
+  return 0;
+}
diff --git a/elf/ifuncmain2pic.c b/elf/ifuncmain2pic.c
new file mode 100644
index 0000000000..0006012a96
--- /dev/null
+++ b/elf/ifuncmain2pic.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -fPIC.  */
+
+#include "ifuncmain2.c"
diff --git a/elf/ifuncmain2picstatic.c b/elf/ifuncmain2picstatic.c
new file mode 100644
index 0000000000..3e89db536d
--- /dev/null
+++ b/elf/ifuncmain2picstatic.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -fPIC and -static.  */
+
+#include "ifuncmain2.c"
diff --git a/elf/ifuncmain2static.c b/elf/ifuncmain2static.c
new file mode 100644
index 0000000000..6932ae8066
--- /dev/null
+++ b/elf/ifuncmain2static.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -static.  */
+
+#include "ifuncmain2.c"
diff --git a/elf/ifuncmain3.c b/elf/ifuncmain3.c
new file mode 100644
index 0000000000..5d067cced9
--- /dev/null
+++ b/elf/ifuncmain3.c
@@ -0,0 +1,120 @@
+/* Test STT_GNU_IFUNC symbols with dlopen:
+
+   1. Direct function call.
+   2. Function pointer.
+   3. Visibility with override.
+ */
+
+#include <dlfcn.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+typedef int (*foo_p) (void);
+
+int
+__attribute__ ((noinline))
+foo (void)
+{
+  return -30;
+}
+
+int
+__attribute__ ((noinline))
+foo_hidden (void)
+{
+  return -20;
+}
+
+int
+__attribute__ ((noinline))
+foo_protected (void)
+{
+  return -40;
+}
+
+int
+main (void)
+{
+  foo_p p;
+  foo_p (*f) (void);
+  int *ret;
+
+  void *h = dlopen ("ifuncmod3.so", RTLD_LAZY);
+  if (h == NULL)
+    {
+      printf ("cannot load: %s\n", dlerror ());
+      return 1;
+    }
+
+  f = dlsym (h, "get_foo_p");
+  if (f == NULL)
+    {
+      printf ("symbol not found: %s\n", dlerror ());
+      return 1;
+    }
+
+  ret = dlsym (h, "ret_foo");
+  if (ret == NULL)
+    {
+      printf ("symbol not found: %s\n", dlerror ());
+      return 1;
+    }
+
+  p = (*f) ();
+  if (p != foo)
+    abort ();
+  if (foo () != -30)
+    abort ();
+  if (*ret != -30 || (*p) () != *ret)
+    abort ();
+
+  f = dlsym (h, "get_foo_hidden_p");
+  if (f == NULL)
+    {
+      printf ("symbol not found: %s\n", dlerror ());
+      return 1;
+    }
+
+  ret = dlsym (h, "ret_foo_hidden");
+  if (ret == NULL)
+    {
+      printf ("symbol not found: %s\n", dlerror ());
+      return 1;
+    }
+
+  p = (*f) ();
+  if (foo_hidden () != -20)
+    abort ();
+  if (*ret != 1 || (*p) () != *ret)
+    abort ();
+
+  f = dlsym (h, "get_foo_protected_p");
+  if (f == NULL)
+    {
+      printf ("symbol not found: %s\n", dlerror ());
+      return 1;
+    }
+
+  ret = dlsym (h, "ret_foo_protected");
+  if (ret == NULL)
+    {
+      printf ("symbol not found: %s\n", dlerror ());
+      return 1;
+    }
+
+  p = (*f) ();
+  if (p == foo_protected)
+    abort ();
+  if (foo_protected () != -40)
+    abort ();
+  if (*ret != 0 || (*p) () != *ret)
+    abort ();
+
+  if (dlclose (h) != 0)
+    {
+      printf ("cannot close: %s\n", dlerror ());
+      return 1;
+    }
+
+  return 0;
+}
diff --git a/elf/ifuncmain4.c b/elf/ifuncmain4.c
new file mode 100644
index 0000000000..e55fee2eb3
--- /dev/null
+++ b/elf/ifuncmain4.c
@@ -0,0 +1,4 @@
+/* Test STT_GNU_IFUNC symbols in a single source file.  */
+
+#include "ifuncmod1.c"
+#include "ifuncmain1.c"
diff --git a/elf/ifuncmain4picstatic.c b/elf/ifuncmain4picstatic.c
new file mode 100644
index 0000000000..977d7f97fc
--- /dev/null
+++ b/elf/ifuncmain4picstatic.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -fPIC and -static.  */
+
+#include "ifuncmain4.c"
diff --git a/elf/ifuncmain4static.c b/elf/ifuncmain4static.c
new file mode 100644
index 0000000000..c399977013
--- /dev/null
+++ b/elf/ifuncmain4static.c
@@ -0,0 +1,3 @@
+/* Test STT_GNU_IFUNC symbols with -static.  */
+
+#include "ifuncmain4.c"
diff --git a/elf/ifuncmod1.c b/elf/ifuncmod1.c
new file mode 100644
index 0000000000..a1697b596d
--- /dev/null
+++ b/elf/ifuncmod1.c
@@ -0,0 +1,114 @@
+/* Test STT_GNU_IFUNC symbols:
+
+   1. Direct function call.
+   2. Function pointer.
+   3. Visibility.
+ */
+
+extern int global;
+
+static int
+one (void)
+{
+  return 1;
+}
+
+static int
+minus_one (void)
+{
+  return -1;
+}
+
+static int
+zero (void) 
+{
+  return 0;
+}
+
+void * foo_ifunc (void) __asm__ ("foo");
+__asm__(".type foo, %gnu_indirect_function");
+
+void * 
+foo_ifunc (void)
+{
+  switch (global)
+    {
+    case 1:
+      return one;
+    case -1:
+      return minus_one;
+    default:
+      return zero;
+    }
+}
+
+void * foo_hidden_ifunc (void) __asm__ ("foo_hidden");
+__asm__(".type foo_hidden, %gnu_indirect_function");
+
+void * 
+foo_hidden_ifunc (void)
+{
+  switch (global)
+    {
+    case 1:
+      return minus_one;
+    case -1:
+      return one;
+    default:
+      return zero;
+    }
+}
+
+void * foo_protected_ifunc (void) __asm__ ("foo_protected");
+__asm__(".type foo_protected, %gnu_indirect_function");
+
+void * 
+foo_protected_ifunc (void)
+{
+  switch (global)
+    {
+    case 1:
+      return one;
+    case -1:
+      return zero;
+    default:
+      return minus_one;
+    }
+}
+
+/* Test hidden indirect function.  */
+__asm__(".hidden foo_hidden");
+
+/* Test protected indirect function.  */
+__asm__(".protected foo_protected");
+
+extern int foo (void);
+extern int foo_hidden (void);
+extern int foo_protected (void);
+extern int ret_foo;
+extern int ret_foo_hidden;
+extern int ret_foo_protected;
+
+#define FOO_P
+typedef int (*foo_p) (void);
+
+foo_p
+get_foo_p (void)
+{
+  ret_foo = foo ();
+  return foo;
+}
+
+foo_p
+get_foo_hidden_p (void)
+{
+  ret_foo_hidden = foo_hidden ();
+  return foo_hidden;
+}
+
+foo_p
+get_foo_protected_p (void)
+{
+  ret_foo_protected = foo_protected ();
+  return foo_protected;
+}
diff --git a/elf/ifuncmod3.c b/elf/ifuncmod3.c
new file mode 100644
index 0000000000..379d2c8d53
--- /dev/null
+++ b/elf/ifuncmod3.c
@@ -0,0 +1,8 @@
+/* Test STT_GNU_IFUNC symbols with dlopen.  */
+
+#include "ifuncmod1.c"
+
+int ret_foo;
+int ret_foo_hidden;
+int ret_foo_protected;
+int global = -1;