From: "Cédric Chépied" <cedric.chepied@drotek.com>
To: "Cédric Chépied" <cedric.chepied@drotek.com>
Cc: xenomai@lists.linux.dev
Subject: Re: Posix timer creation failure
Date: Tue, 16 Apr 2024 16:06:05 +0200 [thread overview]
Message-ID: <661e85bd.5d0a0220.a8214.d5f4@mx.google.com> (raw)
In-Reply-To: <661e49af.df0a0220.ffef6.a7bc@mx.google.com>
Cédric Chépied wrote:
> I'm trying to execute a simple posix timer example (see code below). When I
> compile it "normally", it works fine but when I add xeno-config generated flags
> (to add RT tasks later) the create_timer function fails (invalid argument).
>
> Here are compilation flags :
>
> sdk/sysroots/x86_64-fslcsdk-linux/usr/bin/arm-fslc-linux-gnueabi/arm-fslc-linux-gnueabi-gcc -mthumb -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a7 -fstack-protector-strong -O2 -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security --sysroot=sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi --sysroot=sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi -O2 -pipe -g -feliminate-unused-debug-types -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -Wl,-z,relro,-z,now -Wl,--no-as-needed -Wl,@sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi/usr/lib/modechk.wrappers -lalchemy -lcopperplate sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi/usr/lib/xenomai/bootstrap.o -Wl,--wrap=main -Wl,--dynamic-list=sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi/usr/lib/dynlist.ld -Lsdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi/usr/lib -lcobalt -lmodechk -lpthread -lrt -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -fmacro-prefix-map=/workdir/build/tmp/work/cortexa7t2hf-neon-fslc-linux-gnueabi/xenomai/3.2.4-r0=/usr/src/debug/xenomai/3.2.4-r0 -fdebug-prefix-map=/workdir/build/tmp/work/cortexa7t2hf-neon-fslc-linux-gnueabi/xenomai/3.2.4-r0=/usr/src/debug/xenomai/3.2.4-r0 -fdebug-prefix-map=sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi= -fdebug-prefix-map=sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi-native= -Wl,-z,relro,-z,now -Wl,@sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi/usr/lib/cobalt.wrappers -Wl,@sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi/usr/lib/cobalt-glibc-time64.wrappers CMakeFiles/timer.dir/timer.c.o -o timer
>
Wrappers seem to be the problem. When I link without
"-Wl,@sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi/usr/lib/cobalt.wrappers
-Wl,@sdk/sysroots/cortexa7t2hf-neon-fslc-linux-gnueabi/usr/lib/cobalt-glibc-time64.wrappers",
timers work. But I won't be able to use the rtcan driver (I won't be able to
call ioctl on the socket).
It seems to work by adding "-nostdlib" when linking but then I got "undefined
reference to symbol '__aeabi_unwind_cpp_pr0@@GCC_3.5'".
If I disable exceptions with "-fno-exceptions" it compiles and runs fine. But I
need C++ exceptions for my "real" code.
What is the correct way to fix this ?
Thanks,
--
Cédric Chépied
<cedric.chepied@drotek.com>
<http://events.drotek.com/>
prev parent reply other threads:[~2024-04-16 14:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-16 9:49 Posix timer creation failure Cédric Chépied
2024-04-16 14:06 ` Cédric Chépied [this message]
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