--- Begin Message ---
Package: libc6-dev
Version: 2.32-5
Severity: normal
Tags: upstream
X-Debbugs-Cc: alx.manpages@gmail.com, libc-alpha@sourceware.org, unit@nginx.org
Dear Maintainer,
Building Nginx Unit from source results in a compilation error.
I tried both Debian 11 and Debian Sid (12),
and the bug is reproducible in Sid only.
To reproduce the problem, install the following packages:
git, build-essential, libpcre2-dev
Then execute the following commands:
git clone https://github.com/nginx/unit.git
cd unit/
./configure
make
You will see the following error:
---
cc -c -pipe -fPIC -fvisibility=hidden -O -W -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wmissing-prototypes -Werror -g -I src -I build \
\
\
-o build/src/nxt_thread.o \
-MMD -MF build/src/nxt_thread.dep -MT build/src/nxt_thread.o \
src/nxt_thread.c
In file included from src/nxt_unix.h:187,
from src/nxt_main.h:31,
from src/nxt_thread.c:7:
src/nxt_thread.c: In function ‘nxt_thread_trampoline’:
src/nxt_thread.c:114:5: error: ‘__sigsetjmp’ accessing 200 bytes in a region of size 72 [-Werror=stringop-overflow=]
114 | pthread_cleanup_push(nxt_thread_time_cleanup, thr);
| ^~~~~~~~~~~~~~~~~~~~
src/nxt_thread.c:114:5: note: referencing argument 1 of type ‘struct __jmp_buf_tag *’
/usr/include/pthread.h:734:12: note: in a call to function ‘__sigsetjmp’
734 | extern int __sigsetjmp (struct __jmp_buf_tag *__env, int __savemask) __THROWNL;
| ^~~~~~~~~~~
cc1: all warnings being treated as errors
---
If you reverse the order of the includes <pthread.h> and <setjmp.h>,
which are included in <src/nxt_unix.h> (in the nginx unit source code),
the error disappears:
On 12/8/21 22:37, Valentin V. Bartenev wrote:
> diff --git a/src/nxt_unix.h b/src/nxt_unix.h
> --- a/src/nxt_unix.h
> +++ b/src/nxt_unix.h
> @@ -153,6 +153,7 @@
> #include <poll.h>
> #include <pwd.h>
> #include <semaphore.h>
> +#include <pthread.h>
> #include <setjmp.h>
> #include <sched.h>
> #include <signal.h>
> @@ -184,7 +185,6 @@
> #include <sys/wait.h>
> #include <time.h>
> #include <unistd.h>
> -#include <pthread.h>
>
> #if (NXT_HAVE_EPOLL)
> #include <sys/epoll.h>
The above workaround silences the error.
Regards,
Alex
-- System Information:
Debian Release: bookworm/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 5.15.0-2-amd64 (SMP w/12 CPU threads)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages libc6-dev depends on:
ii libc-dev-bin 2.32-5
ii libc6 2.32-5
ii libcrypt-dev 1:4.4.26-1
ii libnsl-dev 1.3.0-2
ii linux-libc-dev 5.15.5-1
ii rpcsvc-proto 1.4.2-4
libc6-dev recommends no packages.
Versions of packages libc6-dev suggests:
pn glibc-doc <none>
ii manpages-dev 5.10-1
-- no debconf information
--- End Message ---
--- Begin Message ---
Version: 2.33-0experimental0
On 2021-12-10 21:22, Aurelien Jarno wrote:
> On 2021-12-08 23:46, Alejandro Colomar wrote:
> > Package: libc6-dev
> > Version: 2.32-5
> > Severity: normal
> > Tags: upstream
> > X-Debbugs-Cc: alx.manpages@gmail.com, libc-alpha@sourceware.org, unit@nginx.org
> >
> > Dear Maintainer,
> >
> > Building Nginx Unit from source results in a compilation error.
> > I tried both Debian 11 and Debian Sid (12),
> > and the bug is reproducible in Sid only.
> >
> > To reproduce the problem, install the following packages:
> >
> > git, build-essential, libpcre2-dev
> >
> > Then execute the following commands:
> >
> > git clone https://github.com/nginx/unit.git
> > cd unit/
> > ./configure
> > make
> >
> > You will see the following error:
> >
> >
> > ---
> >
> > cc -c -pipe -fPIC -fvisibility=hidden -O -W -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wmissing-prototypes -Werror -g -I src -I build \
> > \
> > \
> > -o build/src/nxt_thread.o \
> > -MMD -MF build/src/nxt_thread.dep -MT build/src/nxt_thread.o \
> > src/nxt_thread.c
> > In file included from src/nxt_unix.h:187,
> > from src/nxt_main.h:31,
> > from src/nxt_thread.c:7:
> > src/nxt_thread.c: In function ‘nxt_thread_trampoline’:
> > src/nxt_thread.c:114:5: error: ‘__sigsetjmp’ accessing 200 bytes in a region of size 72 [-Werror=stringop-overflow=]
> > 114 | pthread_cleanup_push(nxt_thread_time_cleanup, thr);
> > | ^~~~~~~~~~~~~~~~~~~~
> > src/nxt_thread.c:114:5: note: referencing argument 1 of type ‘struct __jmp_buf_tag *’
> > /usr/include/pthread.h:734:12: note: in a call to function ‘__sigsetjmp’
> > 734 | extern int __sigsetjmp (struct __jmp_buf_tag *__env, int __savemask) __THROWNL;
> > | ^~~~~~~~~~~
> > cc1: all warnings being treated as errors
>
> The problem you encounter is due to the use of GCC 11. glibc headers
> need to be adapted for that. This has been done upstream in glibc 2.33,
> which is already available in experimental. It should arrive soon in
> sid. Using GCC 10 is another alternative.
glibc 2.33 is now in sid. Closing the bug.
--
Aurelien Jarno GPG: 4096R/1DDD8C9B
aurelien@aurel32.net http://www.aurel32.net
--- End Message ---