public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug target/100896] New: --enable-initfini-array should be enabled for cross compiler to Linux
@ 2021-06-03 19:39 hjl.tools at gmail dot com
2021-06-09 12:15 ` [Bug target/100896] " cvs-commit at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: hjl.tools at gmail dot com @ 2021-06-03 19:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100896
Bug ID: 100896
Summary: --enable-initfini-array should be enabled for cross
compiler to Linux
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
--enable-initfini-array should be enabled for cross compiler to
all *-*-linux* and *-*-gnu* targets.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/100896] --enable-initfini-array should be enabled for cross compiler to Linux
2021-06-03 19:39 [Bug target/100896] New: --enable-initfini-array should be enabled for cross compiler to Linux hjl.tools at gmail dot com
@ 2021-06-09 12:15 ` cvs-commit at gcc dot gnu.org
2021-06-09 12:16 ` hjl.tools at gmail dot com
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-06-09 12:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100896
--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:
https://gcc.gnu.org/g:13a39886940331149173b25d6ebde0850668d8b9
commit r12-1328-g13a39886940331149173b25d6ebde0850668d8b9
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Jun 8 16:09:24 2021 -0700
Always enable DT_INIT_ARRAY/DT_FINI_ARRAY on Linux
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.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/100896] --enable-initfini-array should be enabled for cross compiler to Linux
2021-06-03 19:39 [Bug target/100896] New: --enable-initfini-array should be enabled for cross compiler to Linux hjl.tools at gmail dot com
2021-06-09 12:15 ` [Bug target/100896] " cvs-commit at gcc dot gnu.org
@ 2021-06-09 12:16 ` hjl.tools at gmail dot com
2021-08-17 13:00 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: hjl.tools at gmail dot com @ 2021-06-09 12:16 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100896
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.0
Resolution|--- |FIXED
Status|UNCONFIRMED |RESOLVED
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed for GCC 12.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/100896] --enable-initfini-array should be enabled for cross compiler to Linux
2021-06-03 19:39 [Bug target/100896] New: --enable-initfini-array should be enabled for cross compiler to Linux hjl.tools at gmail dot com
2021-06-09 12:15 ` [Bug target/100896] " cvs-commit at gcc dot gnu.org
2021-06-09 12:16 ` hjl.tools at gmail dot com
@ 2021-08-17 13:00 ` cvs-commit at gcc dot gnu.org
2021-11-05 18:57 ` i at maskray dot me
2021-11-05 19:00 ` i at maskray dot me
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-08-17 13:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100896
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Christophe Lyon <clyon@gcc.gnu.org>:
https://gcc.gnu.org/g:9c560cf23996271ee26dfc4a1d8484b85173cd12
commit r12-2954-g9c560cf23996271ee26dfc4a1d8484b85173cd12
Author: Christophe Lyon <christophe.lyon@foss.st.com>
Date: Tue Aug 17 12:59:26 2021 +0000
Do not enable DT_INIT_ARRAY/DT_FINI_ARRAY on uclinuxfdpiceabi
Commit r12-1328 enabled DT_INIT_ARRAY/DT_FINI_ARRAY for all Linux
targets, but this does not work for arm-none-uclinuxfdpiceabi: it
makes all the execution tests fail.
This patch restores the original behavior for uclinuxfdpiceabi.
2021-08-12 Christophe Lyon <christophe.lyon@foss.st.com>
gcc/
PR target/100896
* config.gcc (gcc_cv_initfini_array): Leave undefined for
uclinuxfdpiceabi targets.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/100896] --enable-initfini-array should be enabled for cross compiler to Linux
2021-06-03 19:39 [Bug target/100896] New: --enable-initfini-array should be enabled for cross compiler to Linux hjl.tools at gmail dot com
` (2 preceding siblings ...)
2021-08-17 13:00 ` cvs-commit at gcc dot gnu.org
@ 2021-11-05 18:57 ` i at maskray dot me
2021-11-05 19:00 ` i at maskray dot me
4 siblings, 0 replies; 6+ messages in thread
From: i at maskray dot me @ 2021-11-05 18:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100896
Fangrui Song <i at maskray dot me> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |i at maskray dot me
--- Comment #4 from Fangrui Song <i at maskray dot me> ---
In gcc/acinclude.m4:285, if cross-compiling, (`if test "x${build}" =
"x${target}" && test "x${build}" = "x${host}"; then `) will not be taken.
else
case "${target}" in
aarch64*-linux-gnu*)
# AArch64 postdates glibc support for .init_array/.fini_array,
# so we don't need the preprocessor test above.
gcc_cv_initfini_array=yes
;;
*)
AC_MSG_CHECKING(cross compile... guessing)
gcc_cv_initfini_array=no
;;
esac
fi])
On non-aarch64, `gcc_cv_initfini_array=no` will run,
`HAVE_INITFINI_ARRAY_SUPPORT` will therefore be 0.
compilers/powerpc64le-linux-gnu/gcc/gcc/auto-host.h
1578:#define HAVE_INITFINI_ARRAY_SUPPORT 0
compilers/powerpc64le-linux-gnu/gcc/gcc/config.status
1257:D["HAVE_INITFINI_ARRAY_SUPPORT"]=" 0"
compilers/powerpc64le-linux-gnu/gcc/gcc/config.log
6900:| #define HAVE_INITFINI_ARRAY_SUPPORT 0
7169:| #define HAVE_INITFINI_ARRAY_SUPPORT 0
7484:| #define HAVE_INITFINI_ARRAY_SUPPORT 0
8557:#define HAVE_INITFINI_ARRAY_SUPPORT 0
The built GCC will use the legacy .ctors
% many=/tmp/glibc-many
% cat a.c
__attribute__ ((constructor)) static int foo (void) { return 42; }
%
/tmp/glibc-many/install/compilers/powerpc64le-linux-gnu/bin/powerpc64le-glibc-linux-gnu-gcc
-c a.c && readelf -WS a.o | egrep 'ctors|init_array'
[ 4] .ctors PROGBITS 0000000000000000 000070 000008 00 WA
0 0 8
[ 5] .rela.ctors RELA 0000000000000000 000218 000018 18 I
10 4 8
---
Noticed the problem when using scripts/build-many-glibcs.py built GCC
(cd ~/Dev/glibc)
scripts/build-many-glibcs.py /tmp/glibc-many checkout --shallow
scripts/build-many-glibcs.py /tmp/glibc-many host-libraries
scripts/build-many-glibcs.py /tmp/glibc-many compilers powerpc64le-linux-gnu
--keep all
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/100896] --enable-initfini-array should be enabled for cross compiler to Linux
2021-06-03 19:39 [Bug target/100896] New: --enable-initfini-array should be enabled for cross compiler to Linux hjl.tools at gmail dot com
` (3 preceding siblings ...)
2021-11-05 18:57 ` i at maskray dot me
@ 2021-11-05 19:00 ` i at maskray dot me
4 siblings, 0 replies; 6+ messages in thread
From: i at maskray dot me @ 2021-11-05 19:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100896
--- Comment #5 from Fangrui Song <i at maskray dot me> ---
Ah, ok, my /tmp/glibc-many/src/gcc is at releases/gcc-11 while the fix is for
12.0?
Anyway, you may want to clean up gcc/acinclude.m4
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-11-05 19:00 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-03 19:39 [Bug target/100896] New: --enable-initfini-array should be enabled for cross compiler to Linux hjl.tools at gmail dot com
2021-06-09 12:15 ` [Bug target/100896] " cvs-commit at gcc dot gnu.org
2021-06-09 12:16 ` hjl.tools at gmail dot com
2021-08-17 13:00 ` cvs-commit at gcc dot gnu.org
2021-11-05 18:57 ` i at maskray dot me
2021-11-05 19:00 ` i at maskray dot me
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).