sourceware.org Git - glibc.git/commit

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.

author	H.J. Lu <hjl.tools@gmail.com>
	Fri, 8 Jun 2018 17:28:38 +0000 (10:28 -0700)
committer	H.J. Lu <hjl.tools@gmail.com>
	Fri, 8 Jun 2018 17:28:52 +0000 (10:28 -0700)
commit	67c0579669ba1fc265d770252fab31babf887329
tree	34059924ead164f11bc21fd73ccab758153bd9f7	tree
parent	1c09524e4db3efd797ebcfcd8241bdb78f0b06f0	commit \| diff

ChangeLog		diff \| blob \| blame \| history
elf/Makefile		diff \| blob \| blame \| history
scripts/check-initfini.awk	[new file with mode: 0644]	blob
sysdeps/aarch64/crti.S		diff \| blob \| blame \| history
sysdeps/alpha/crti.S		diff \| blob \| blame \| history
sysdeps/arm/crti.S		diff \| blob \| blame \| history
sysdeps/hppa/crti.S		diff \| blob \| blame \| history
sysdeps/i386/crti.S		diff \| blob \| blame \| history
sysdeps/ia64/crti.S		diff \| blob \| blame \| history
sysdeps/m68k/crti.S		diff \| blob \| blame \| history
sysdeps/microblaze/crti.S		diff \| blob \| blame \| history
sysdeps/mips/mips32/crti.S		diff \| blob \| blame \| history
sysdeps/mips/mips64/n32/crti.S		diff \| blob \| blame \| history
sysdeps/mips/mips64/n64/crti.S		diff \| blob \| blame \| history
sysdeps/nios2/crti.S		diff \| blob \| blame \| history
sysdeps/powerpc/powerpc32/crti.S		diff \| blob \| blame \| history
sysdeps/powerpc/powerpc64/crti.S		diff \| blob \| blame \| history
sysdeps/s390/s390-32/crti.S		diff \| blob \| blame \| history
sysdeps/s390/s390-64/crti.S		diff \| blob \| blame \| history
sysdeps/sh/crti.S		diff \| blob \| blame \| history
sysdeps/sparc/crti.S		diff \| blob \| blame \| history
sysdeps/x86_64/crti.S		diff \| blob \| blame \| history