mirrors/gcc
0
0
Fork 0
mirror of https://gcc.gnu.org/git/gcc.git synced 2024-12-14 14:33:40 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Always enable DT_INIT_ARRAY/DT_FINI_ARRAY on Linux

Browse Source 
DT_INIT_ARRAY/DT_FINI_ARRAY support was added to glibc 2.1 by

commit fcf70d4114db9ff7923f5dfeb3fea6e2d623e5c2
Author: Ulrich Drepper <drepper@redhat.com>
Date:   Sat Jul 24 19:45:13 1999 +0000

    Update.

    1999-07-24  Ulrich Drepper  <drepper@cygnus.com>

            * elf/dl-fini.c: Handle DT_FINI_ARRAY.
            * elf/link.h (struct link_map): Remove l_init_running.  Add l_runcount
            and l_initcount.
            * elf/dl-init.c: Handle DT_INIT_ARRAY.
...

and added to binutils 2.12 by

commit e9682144c14fc809af72bd6c0b8c69731d38679c
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Mar 4 20:40:48 2002 +0000

    2002-03-04  H.J. Lu <hjl@gnu.org>

            * config/obj-elf.c (special_section): Add .init_array,
            .fini_array and .preinit_array.

            * config/tc-ia64.h (ELF_TC_SPECIAL_SECTIONS): Remove
            .init_array and .fini_array.

gcc/

	PR target/100896
	* config.gcc (gcc_cv_initfini_array): Set to yes for Linux and
	GNU targets.
	* doc/install.texi: Require glibc 2.1 and binutils 2.12 for
	Linux and GNU targets.
This commit is contained in:
H.J. Lu 2021-06-08 16:09:24 -07:00
parent b3fce1bd45
commit 13a3988694
2 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
gcc/config.gcc
View File

@ -848,6 +848,8 @@ case ${target} in
tmake_file="${tmake_file} t-glibc"
target_has_targetcm=yes
target_has_targetdm=yes
# Linux targets always support .init_array.
gcc_cv_initfini_array=yes
;;
*-*-netbsd*)
tm_p_file="${tm_p_file} netbsd-protos.h"

3
gcc/doc/install.texi
View File

@ -4126,6 +4126,9 @@ supported, so @option{--enable-threads=dce} does not work.
@end html
@anchor{x-x-linux-gnu}
@heading *-*-linux-gnu
The @code{.init_array} and @code{.fini_array} sections are enabled
unconditionally which requires at least glibc 2.1 and binutils 2.12.
Versions of libstdc++-v3 starting with 3.2.1 require bug fixes present
in glibc 2.2.5 and later. More information is available in the
libstdc++-v3 documentation.