diff --git a/ChangeLog b/ChangeLog
index b1d694ad0c..73b25958bc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,51 @@
+2018-06-08  H.J. Lu  <hongjiu.lu@intel.com>
+
+	[BZ #23145]
+	* elf/Makefile (tests-special): Add $(objpfx)check-initfini.out.
+	($(all-built-dso:=.dynsym): New target.
+	(common-generated): Add $(all-built-dso:$(common-objpfx)%=%.dynsym).
+	($(objpfx)check-initfini.out): New target.
+	(generated): Add check-initfini.out.
+	* scripts/check-initfini.awk: New file.
+	* sysdeps/aarch64/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/alpha/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/arm/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/hppa/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/i386/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/ia64/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/m68k/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/microblaze/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/mips/mips32/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/mips/mips64/n32/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/mips/mips64/n64/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/nios2/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/powerpc/powerpc32/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/powerpc/powerpc64/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/s390/s390-32/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/s390/s390-64/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/sh/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/sparc/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+	* sysdeps/x86_64/crti.S (_init): Mark as hidden.
+	(_fini): Likewise.
+
 2018-06-06  Tulio Magno Quites Machado Filho  <tuliom@linux.ibm.com>
 
 	* sysdeps/powerpc/powerpc64/le/fpu/e_sqrtf128.c
diff --git a/elf/Makefile b/elf/Makefile
index 2dcd2b88e0..f221422de3 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -348,7 +348,7 @@ ifeq ($(run-built-tests),yes)
 tests-special += $(objpfx)tst-pathopt.out $(objpfx)tst-rtld-load-self.out
 endif
 tests-special += $(objpfx)check-textrel.out $(objpfx)check-execstack.out \
-		 $(objpfx)check-localplt.out
+		 $(objpfx)check-localplt.out $(objpfx)check-initfini.out
 endif
 
 ifeq ($(run-built-tests),yes)
@@ -1136,6 +1136,19 @@ $(objpfx)check-localplt.out: $(..)scripts/check-localplt.awk \
 	$(evaluate-test)
 endif
 
+$(all-built-dso:=.dynsym): %.dynsym: %
+	@rm -f $@T
+	LC_ALL=C $(READELF) -W --dyn-syms $< > $@T
+	test -s $@T
+	mv -f $@T $@
+common-generated += $(all-built-dso:$(common-objpfx)%=%.dynsym)
+
+$(objpfx)check-initfini.out: $(..)scripts/check-initfini.awk \
+			    $(all-built-dso:=.dynsym)
+	LC_ALL=C $(AWK) -f $^ > $@; \
+	$(evaluate-test)
+generated += check-initfini.out
+
 $(objpfx)tst-dlopenrpathmod.so: $(libdl)
 $(objpfx)tst-dlopenrpath: $(objpfx)tst-dlopenrpathmod.so $(libdl)
 CFLAGS-tst-dlopenrpath.c += -DPFX=\"$(objpfx)\"
diff --git a/scripts/check-initfini.awk b/scripts/check-initfini.awk
new file mode 100644
index 0000000000..19514a98ad
--- /dev/null
+++ b/scripts/check-initfini.awk
@@ -0,0 +1,63 @@
+# Copyright (C) 2018 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/>.
+
+# This awk script expects to get command-line files that are each
+# the output of 'readelf -W --dyn-syms' on a single shared object.
+# It exits successfully (0) if none contained _init nor _fini in dynamic
+# symbol table.
+# It fails (1) if any did contain _init or _fini in dynamic symbol table.
+# It fails (2) if the input did not take the expected form.
+
+BEGIN { result = _init = _fini = sanity = 0 }
+
+function check_one(name) {
+  if (!sanity) {
+    print name ": *** input did not look like readelf -d output";
+    result = 2;
+  } else {
+    ok = 1;
+    if (_init) {
+      print name ": *** _init is in dynamic symbol table";
+      result = result ? result : 1;
+      ok = 0;
+    }
+    if (_fini) {
+      print name ": *** _fini is in dynamic symbol table";
+      result = result ? result : 1;
+      ok = 0;
+    }
+    if (ok)
+      print name ": OK";
+  }
+
+  _init = _fini = sanity = 0
+}
+
+FILENAME != lastfile {
+  if (lastfile)
+    check_one(lastfile);
+  lastfile = FILENAME;
+}
+
+$1 == "Symbol" && $2 == "table" && $3 == "'.dynsym'" { sanity = 1 }
+$8 == "_init" { _init = 1 }
+$8 == "_fini" { _fini = 1 }
+
+END {
+  check_one(lastfile);
+  exit(result);
+}
diff --git a/sysdeps/aarch64/crti.S b/sysdeps/aarch64/crti.S
index 366b837d55..2b213758b2 100644
--- a/sysdeps/aarch64/crti.S
+++ b/sysdeps/aarch64/crti.S
@@ -72,6 +72,7 @@ call_weak_fn:
 	.section .init,"ax",%progbits
 	.align	2
 	.global	_init
+	.hidden	_init
 	.type	_init, %function
 _init:
 	stp	x29, x30, [sp, -16]!
@@ -85,6 +86,7 @@ _init:
 	.section	.fini,"ax",%progbits
 	.align	2
 	.global	_fini
+	.hidden	_fini
 	.type	_fini, %function
 _fini:
 	stp	x29, x30, [sp, -16]!
diff --git a/sysdeps/alpha/crti.S b/sysdeps/alpha/crti.S
index b00ae203f5..bcce1e9055 100644
--- a/sysdeps/alpha/crti.S
+++ b/sysdeps/alpha/crti.S
@@ -67,6 +67,7 @@
 
 	.section .init, "ax", @progbits
 	.globl	_init
+	.hidden	_init
 	.type	_init, @function
 	.usepv	_init, std
 _init:
@@ -89,6 +90,7 @@ _init:
 
 	.section .fini, "ax", @progbits
 	.globl	_fini
+	.hidden	_fini
 	.type	_fini,@function
 	.usepv	_fini,std
 _fini:
diff --git a/sysdeps/arm/crti.S b/sysdeps/arm/crti.S
index e645d467d3..a1424d0333 100644
--- a/sysdeps/arm/crti.S
+++ b/sysdeps/arm/crti.S
@@ -78,6 +78,7 @@ call_weak_fn:
 	.section .init,"ax",%progbits
 	.p2align 2
 	.globl _init
+	.hidden	_init
 	.type _init, %function
 _init:
 	push	{r3, lr}
@@ -90,6 +91,7 @@ _init:
 	.section .fini,"ax",%progbits
 	.p2align 2
 	.globl _fini
+	.hidden	_fini
 	.type _fini, %function
 _fini:
 	push	{r3, lr}
diff --git a/sysdeps/hppa/crti.S b/sysdeps/hppa/crti.S
index 4566d9f7da..28550e5758 100644
--- a/sysdeps/hppa/crti.S
+++ b/sysdeps/hppa/crti.S
@@ -142,6 +142,7 @@ gmon_initializer:
 	.section .init, "ax", %progbits
 	.align 4
 	.globl _init
+	.hidden	_init
 	.type _init,@function
 _init:
 	stw	%rp,-20(%sp)
@@ -152,6 +153,7 @@ _init:
         .section .fini,"ax",%progbits
 	.align 4
 	.globl _fini
+	.hidden	_fini
 	.type _fini,@function
 _fini:
 	stw	%rp,-20(%sp)
diff --git a/sysdeps/i386/crti.S b/sysdeps/i386/crti.S
index 065460b813..ffbc92c22f 100644
--- a/sysdeps/i386/crti.S
+++ b/sysdeps/i386/crti.S
@@ -58,6 +58,7 @@
 	.section .init,"ax",@progbits
 	.p2align 2
 	.globl _init
+	.hidden	_init
 	.type _init, @function
 _init:
 	pushl %ebx
@@ -77,6 +78,7 @@ _init:
 	.section .fini,"ax",@progbits
 	.p2align 2
 	.globl _fini
+	.hidden	_fini
 	.type _fini, @function
 _fini:
 	pushl %ebx
diff --git a/sysdeps/ia64/crti.S b/sysdeps/ia64/crti.S
index 867683b5ef..c46e297814 100644
--- a/sysdeps/ia64/crti.S
+++ b/sysdeps/ia64/crti.S
@@ -129,6 +129,7 @@ gmon_initializer:
 
 	.section .init,"ax",@progbits
 	.global _init#
+	.hidden	_init#
 	.proc _init#
 _init:
 	.prologue
@@ -145,6 +146,7 @@ _init:
 
 	.section .fini,"ax",@progbits
 	.global _fini#
+	.hidden	_fini#
 	.proc _fini#
 _fini:
 	.prologue
diff --git a/sysdeps/m68k/crti.S b/sysdeps/m68k/crti.S
index b81076357c..e5f2157cd6 100644
--- a/sysdeps/m68k/crti.S
+++ b/sysdeps/m68k/crti.S
@@ -58,6 +58,7 @@
 	.section .init,"ax",@progbits
 	.align	2
 	.globl	_init
+	.hidden	_init
 	.type	_init, @function
 _init:
 	link.w %fp, #0
@@ -75,6 +76,7 @@ _init:
 	.section .fini,"ax",@progbits
 	.align	2
 	.globl	_fini
+	.hidden	_fini
 	.type	_fini, @function
 _fini:
 	link.w %fp, #0
diff --git a/sysdeps/microblaze/crti.S b/sysdeps/microblaze/crti.S
index c407487b45..09c8cd7ccd 100644
--- a/sysdeps/microblaze/crti.S
+++ b/sysdeps/microblaze/crti.S
@@ -58,6 +58,7 @@
 	.section .init,"ax",@progbits
 	.align	2
 	.globl	_init
+	.hidden	_init
 	.type	_init, @function
 _init:
 	addik	r1,r1,-32
@@ -79,6 +80,7 @@ $Lno_weak_fn:
 	.section .fini,"ax",@progbits
 	.align	2
 	.globl	_fini
+	.hidden	_fini
 	.type	_fini, @function
 _fini:
 	addik	r1,r1,-32
diff --git a/sysdeps/mips/mips32/crti.S b/sysdeps/mips/mips32/crti.S
index 139f8bb4ed..b3e1c4e0d5 100644
--- a/sysdeps/mips/mips32/crti.S
+++ b/sysdeps/mips/mips32/crti.S
@@ -65,6 +65,7 @@
 	.section .init,"ax",@progbits
 	.p2align 2
 	.globl _init
+	.hidden	_init
 	.type _init, @function
 _init:
 	.set noreorder
@@ -90,6 +91,7 @@ _init:
 	.section .fini,"ax",@progbits
 	.p2align 2
 	.globl _fini
+	.hidden	_fini
 	.type _fini, @function
 _fini:
 	.set noreorder
diff --git a/sysdeps/mips/mips64/n32/crti.S b/sysdeps/mips/mips64/n32/crti.S
index 23ad90b59b..59a09d5763 100644
--- a/sysdeps/mips/mips64/n32/crti.S
+++ b/sysdeps/mips/mips64/n32/crti.S
@@ -65,6 +65,7 @@
 	.section .init,"ax",@progbits
 	.p2align 2
 	.globl _init
+	.hidden _init
 	.type _init, @function
 _init:
 	addiu $sp,$sp,-16
@@ -90,6 +91,7 @@ _init:
 	.section .fini,"ax",@progbits
 	.p2align 2
 	.globl _fini
+	.hidden _fini
 	.type _fini, @function
 _fini:
 	addiu $sp,$sp,-16
diff --git a/sysdeps/mips/mips64/n64/crti.S b/sysdeps/mips/mips64/n64/crti.S
index 24b47b5cf3..fd468f0467 100644
--- a/sysdeps/mips/mips64/n64/crti.S
+++ b/sysdeps/mips/mips64/n64/crti.S
@@ -65,6 +65,7 @@
 	.section .init,"ax",@progbits
 	.p2align 2
 	.globl _init
+	.hidden _init
 	.type _init, @function
 _init:
 	daddiu $sp,$sp,-16
@@ -90,6 +91,7 @@ _init:
 	.section .fini,"ax",@progbits
 	.p2align 2
 	.globl _fini
+	.hidden _fini
 	.type _fini, @function
 _fini:
 	daddiu $sp,$sp,-16
diff --git a/sysdeps/nios2/crti.S b/sysdeps/nios2/crti.S
index a3b42a4cc2..46ab896ac0 100644
--- a/sysdeps/nios2/crti.S
+++ b/sysdeps/nios2/crti.S
@@ -57,6 +57,7 @@
 	.section .init,"ax",@progbits
 	.align	2
 	.global	_init
+	.hidden	_init
 	.type	_init, @function
 _init:
 	addi	sp, sp, -8
@@ -84,6 +85,7 @@ _init:
 	.section .fini,"ax",@progbits
 	.align	2
 	.global	_fini
+	.hidden	_fini
 	.type	_fini, @function
 _fini:
 	addi	sp, sp, -8
diff --git a/sysdeps/powerpc/powerpc32/crti.S b/sysdeps/powerpc/powerpc32/crti.S
index a30e33a75e..e4ee8dd484 100644
--- a/sysdeps/powerpc/powerpc32/crti.S
+++ b/sysdeps/powerpc/powerpc32/crti.S
@@ -58,6 +58,7 @@
 	.section .init,"ax",@progbits
 	.align	2
 	.globl	_init
+	.hidden	_init
 	.type	_init, @function
 _init:
 	stwu r1, -16(r1)
@@ -80,6 +81,7 @@ _init:
 	.section .fini,"ax",@progbits
 	.align	2
 	.globl	_fini
+	.hidden	_fini
 	.type	_fini, @function
 _fini:
 	stwu r1, -16(r1)
diff --git a/sysdeps/powerpc/powerpc64/crti.S b/sysdeps/powerpc/powerpc64/crti.S
index 61b1409a33..2242deb3dd 100644
--- a/sysdeps/powerpc/powerpc64/crti.S
+++ b/sysdeps/powerpc/powerpc64/crti.S
@@ -62,6 +62,7 @@
 #endif
 	.section ".init", "ax", @progbits
 	ENTRY_2(_init)
+	.hidden _init
 	.align ALIGNARG (2)
 BODY_LABEL (_init):
 	LOCALENTRY(_init)
@@ -80,6 +81,7 @@ BODY_LABEL (_init):
 
 	.section ".fini", "ax", @progbits
 	ENTRY_2(_fini)
+	.hidden _fini
 	.align ALIGNARG (2)
 BODY_LABEL (_fini):
 	LOCALENTRY(_fini)
diff --git a/sysdeps/s390/s390-32/crti.S b/sysdeps/s390/s390-32/crti.S
index cb0c967de1..44b1a704fd 100644
--- a/sysdeps/s390/s390-32/crti.S
+++ b/sysdeps/s390/s390-32/crti.S
@@ -57,6 +57,7 @@
 
 	.section .init,"ax",@progbits
 	.globl	_init
+	.hidden	_init
 	.type	_init,@function
 	.align	4
 _init:
@@ -88,6 +89,7 @@ _init:
 
 	.section .fini,"ax",@progbits
 	.globl	_fini
+	.hidden	_fini
 	.type	_fini,@function
 	.align	4
 _fini:
diff --git a/sysdeps/s390/s390-64/crti.S b/sysdeps/s390/s390-64/crti.S
index 613bac217a..f676eb5259 100644
--- a/sysdeps/s390/s390-64/crti.S
+++ b/sysdeps/s390/s390-64/crti.S
@@ -59,6 +59,7 @@
 	.section .init,"ax",@progbits
 	.align 4
 	.globl	_init
+	.hidden	_init
 	.type	_init,@function
 _init:
 	stmg	%r6,%r15,48(%r15)
@@ -81,6 +82,7 @@ _init:
 	.section .fini,"ax",@progbits
 	.align 4
 	.globl	_fini
+	.hidden	_fini
 	.type	_fini,@function
 _fini:
 	stmg	%r6,%r15,48(%r15)
diff --git a/sysdeps/sh/crti.S b/sysdeps/sh/crti.S
index 48f04a48b6..c0707406f5 100644
--- a/sysdeps/sh/crti.S
+++ b/sysdeps/sh/crti.S
@@ -58,6 +58,7 @@
 	.section	.init,"ax",@progbits
 	.align 5
 	.global	_init
+	.hidden	_init
 	.type	_init, @function
 _init:
 	mov.l	r12,@-r15
@@ -103,6 +104,7 @@ _init:
 	.section	.fini,"ax",@progbits
 	.align 5
 	.global	_fini
+	.hidden	_fini
 	.type	_fini, @function
 _fini:
 	mov.l	r12,@-r15
diff --git a/sysdeps/sparc/crti.S b/sysdeps/sparc/crti.S
index 69aabe7e3b..a7d1a08acc 100644
--- a/sysdeps/sparc/crti.S
+++ b/sysdeps/sparc/crti.S
@@ -66,6 +66,7 @@
 	.section	.init,"ax",@progbits
 	.p2align	2
 	.globl		_init
+	.hidden		_init
 	.type		_init, @function
 _init:
 	save		%sp, -STACKFRAME_SIZE, %sp
@@ -88,6 +89,7 @@ _init:
 	.section	.fini,"ax",@progbits
 	.p2align	2
 	.globl		_fini
+	.hidden		_fini
 	.type		_fini, @function
 _fini:
 	save		%sp, -STACKFRAME_SIZE, %sp
diff --git a/sysdeps/x86_64/crti.S b/sysdeps/x86_64/crti.S
index 619effac3a..f26915e956 100644
--- a/sysdeps/x86_64/crti.S
+++ b/sysdeps/x86_64/crti.S
@@ -58,6 +58,7 @@
 	.section .init,"ax",@progbits
 	.p2align 2
 	.globl _init
+	.hidden	_init
 	.type _init, @function
 _init:
 	/* Maintain 16-byte stack alignment for called functions.  */
@@ -75,6 +76,7 @@ _init:
 	.section .fini,"ax",@progbits
 	.p2align 2
 	.globl _fini
+	.hidden	_fini
 	.type _fini, @function
 _fini:
 	subq $8, %rsp