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authorH.J. Lu <hjl.tools@gmail.com>2018-06-08 10:28:38 -0700
committerH.J. Lu <hjl.tools@gmail.com>2018-06-08 10:28:52 -0700
commit67c0579669ba1fc265d770252fab31babf887329 (patch)
tree34059924ead164f11bc21fd73ccab758153bd9f7 /sysdeps/hppa
parent1c09524e4db3efd797ebcfcd8241bdb78f0b06f0 (diff)
downloadglibc-67c0579669ba1fc265d770252fab31babf887329.tar.gz
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Mark _init and _fini as hidden [BZ #23145]
_init and _fini are special functions provided by glibc for linker to
define DT_INIT and DT_FINI in executable and shared library.  They
should never be put in dynamic symbol table.  This patch marks them as
hidden to remove them from dynamic symbol table.

Tested with build-many-glibcs.py.

	[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.
Diffstat (limited to 'sysdeps/hppa')
-rw-r--r--sysdeps/hppa/crti.S2
1 files changed, 2 insertions, 0 deletions
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)