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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/powerpc
parent1c09524e4db3efd797ebcfcd8241bdb78f0b06f0 (diff)
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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/powerpc')
-rw-r--r--sysdeps/powerpc/powerpc32/crti.S2
-rw-r--r--sysdeps/powerpc/powerpc64/crti.S2
2 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/crti.S b/sysdeps/powerpc/powerpc32/crti.S
index a30e33a..e4ee8dd 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 61b1409..2242deb 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)