Re: Questions on .config [uClibc for ARM Cortex A9]
Hello Ramesh, The following settings work for me (I'm building for Cortex-M3/Thumb): make -s ARCH_CFLAGS= 'CPU_CFLAGS=-mthumb -march=armv7 -mfix-cortex-m3-ldrd' Note the space between ARCH_CFLAGS= and the rest of the string. Regards, Sergei On Thu, 14 Mar 2013 02:44:26 + Ramesh Rangavittal ramesh.rangavit...@ruckuswireless.com wrote: Hello, I am trying to build uClibc for ARM Cortex A9 processor. For the version uClibc-0.9.30.1 powerpc e500, I see the below config options set in a .config found a different email thread. CONFIG_E500=y TARGET_SUBARCH=e500 For the A9, I ran into the below email thread, I am not sure what value should be set? http://lists.uclibc.org/pipermail/uclibc/2011-February/044737.html Can someone please advice. Any pointers to a README doc to have the right settings for this processor is highly appreciated. BTW the uClibc version that I am trying build is uclibc-0.9.33.2. /Ramesh ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc -- Emcraft Systems - uClinux for Cortex-M MCUs | www.emcraft.com | s...@emcraft.com ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc
segfault of test on buildroot system
Hello.
I'm using buildroot based system with ARM samsung processor (s3c2443).
I've found a case, when i get segfault in my application. Using x86
debian compilers doesn't reproduce error.
Attaching test program to this letter. There is an exception getting
throw from constructor of child-class (DisplayPassDevice). At that time
parent destructor (~PassageDevice) getting called. When exiting from
parent destructor i got segfault.
# ./throw
~PassageDevice
Aborted (core dumped)
One more necessary condition. The bug appears only when i compile my
code with pthread:
../minipos-OS-build/host/usr/bin/arm-linux-g++ throw.cpp -o throw -lpthread
When i compile without -lpthread flag, program works OK.
# ./throw
~PassageDevice
catched
I don't know what does this problem belongs to, so i write there for
help. Probably you'll just point me, where to report it.
Software i use is following: gcc 4.5.4, uClibc 0.9.33.2, linux 3.6.
#include stdio.h
#include stdexcept
class PassageDevice
{
public:
virtual void OnPassageOpen() = 0;
virtual void OnPassageClose() = 0;
virtual ~PassageDevice()
{
printf(~PassageDevice\n);
}
};
class DisplayPassDevice: public PassageDevice
{
public:
class Exception {};
DisplayPassDevice(void * config)
{
throw Exception();
}
~DisplayPassDevice()
{
printf(~DisplayPassDevice\n);
}
virtual void OnPassageOpen() {printf(OnPassageOpen\n);}
virtual void OnPassageClose() {printf(OnPassageClose\n);}
};
DisplayPassDevice * disp=0;
int main()
{
try {
disp = new DisplayPassDevice(0);
} catch(DisplayPassDevice::Exception) {
printf(catched\n );
return 1;
}
return 0;
}
___
uClibc mailing list
uClibc@uclibc.org
http://lists.busybox.net/mailman/listinfo/uclibc
uClibc trunk broken
Hi Bernhard, It seems that 950fcf0f68732a9aafaIt inet: res_nclose: free user-buffer breaks the build. This is on ARC port with linthreads.old -8- In file included from libc/inet/res_init.c:8: libc/inet/resolv.c: In function '__res_iclose': libc/inet/resolv.c:3539: error: '__resp' undeclared (first use in this function) libc/inet/resolv.c:3539: error: (Each undeclared identifier is reported only once libc/inet/resolv.c:3539: error: for each function it appears in.) make: *** [libc/inet/res_init.os] Error 1 -8- Reverting the above commit makes the build go thru. I don't have a fix handy but though of reporting anyways ! Thx, -Vineet ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc
RE: uclibc 3.3.2 with gcc-4.7
I've faced problem mentioned in this half-year old thread http://lists.uclibc.org/pipermail/uclibc/2012-August/046997.html Is there any suggestions, what to do, to fix it? ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc
Re: uClibc trunk broken
On 15 March 2013 12:53:55 Vineet Gupta vineet.gup...@synopsys.com wrote: Hi Bernhard, It seems that 950fcf0f68732a9aafaIt inet: res_nclose: free user-buffer breaks the build. This is on ARC port with linthreads.old -8- In file included from libc/inet/res_init.c:8: libc/inet/resolv.c: In function '__res_iclose': libc/inet/resolv.c:3539: error: '__resp' undeclared (first use in this function) Yes, that should read __res_state() instead. Can you confirm this? Thanks, Sent with AquaMail for Android http://www.aqua-mail.com ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc
Re: segfault of test on buildroot system
On Friday, March 15, 2013, Alexander Varnin fenix...@mail.ru wrote: Hello. I'm using buildroot based system with ARM samsung processor (s3c2443). I've found a case, when i get segfault in my application. Using x86 debian compilers doesn't reproduce error. Attaching test program to this letter. There is an exception getting throw from constructor of child-class (DisplayPassDevice). At that time parent destructor (~PassageDevice) getting called. When exiting from parent destructor i got segfault. # ./throw ~PassageDevice Aborted (core dumped) One more necessary condition. The bug appears only when i compile my code with pthread: ../minipos-OS-build/host/usr/bin/arm-linux-g++ throw.cpp -o throw -lpthread Do you use old abi by any chance? When i compile without -lpthread flag, program works OK. # ./throw ~PassageDevice catched I don't know what does this problem belongs to, so i write there for help. Probably you'll just point me, where to report it. Software i use is following: gcc 4.5.4, uClibc 0.9.33.2, linux 3.6. ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc
RE: Questions on .config [uClibc for ARM Cortex A9]
From: Sergei Poselenov [sposele...@emcraft.com] Sent: Friday, March 15, 2013 1:50 AM To: Ramesh Rangavittal Cc: uclibc@uclibc.org Subject: Re: Questions on .config [uClibc for ARM Cortex A9] Hello Ramesh, The following settings work for me (I'm building for Cortex-M3/Thumb): make -s ARCH_CFLAGS= 'CPU_CFLAGS=-mthumb -march=armv7 -mfix-cortex-m3-ldrd' Note the space between ARCH_CFLAGS= and the rest of the string. Regards, Sergei On Thu, 14 Mar 2013 02:44:26 + Ramesh Rangavittal ramesh.rangavit...@ruckuswireless.com wrote: Hello, I am trying to build uClibc for ARM Cortex A9 processor. For the version uClibc-0.9.30.1 powerpc e500, I see the below config options set in a .config found a different email thread. CONFIG_E500=y TARGET_SUBARCH=e500 For the A9, I ran into the below email thread, I am not sure what value should be set? http://lists.uclibc.org/pipermail/uclibc/2011-February/044737.html Can someone please advice. Any pointers to a README doc to have the right settings for this processor is highly appreciated. BTW the uClibc version that I am trying build is uclibc-0.9.33.2. /Ramesh ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc -- Emcraft Systems - uClinux for Cortex-M MCUs | www.emcraft.com | s...@emcraft.com = Thank you Bernhard Sergei for the answers. Our build infrastructure is based on uClibc 0.9.30.1 I am wondering if I really need to use the latest version at this point (0.9.33.2) or 0.9.30.1 itself is good for the a9 processor. Regards Ramesh ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc
Re: Questions on .config [uClibc for ARM Cortex A9]
On 15/03/2013 17.15, Ramesh Rangavittal wrote: From: Sergei Poselenov [sposele...@emcraft.com] Sent: Friday, March 15, 2013 1:50 AM To: Ramesh Rangavittal Cc: uclibc@uclibc.org Subject: Re: Questions on .config [uClibc for ARM Cortex A9] Hello Ramesh, The following settings work for me (I'm building for Cortex-M3/Thumb): make -s ARCH_CFLAGS= 'CPU_CFLAGS=-mthumb -march=armv7 -mfix-cortex-m3-ldrd' Note the space between ARCH_CFLAGS= and the rest of the string. Regards, Sergei On Thu, 14 Mar 2013 02:44:26 + Ramesh Rangavittal ramesh.rangavit...@ruckuswireless.com wrote: Hello, I am trying to build uClibc for ARM Cortex A9 processor. For the version uClibc-0.9.30.1 powerpc e500, I see the below config options set in a .config found a different email thread. CONFIG_E500=y TARGET_SUBARCH=e500 For the A9, I ran into the below email thread, I am not sure what value should be set? http://lists.uclibc.org/pipermail/uclibc/2011-February/044737.html Can someone please advice. Any pointers to a README doc to have the right settings for this processor is highly appreciated. BTW the uClibc version that I am trying build is uclibc-0.9.33.2. /Ramesh ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc -- Emcraft Systems - uClinux for Cortex-M MCUs | www.emcraft.com | s...@emcraft.com = Thank you Bernhard Sergei for the answers. Our build infrastructure is based on uClibc 0.9.30.1 I am wondering if I really need to use the latest version at this point (0.9.33.2) or 0.9.30.1 itself is good for the a9 processor. Ramesh, latest is preferrable. We use it successfully on Cortex-A9 in a very demanding context like STB, Media Sever and Home Gateway. Regards Ramesh Cheers, Carmelo ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc
Re: uClibc trunk broken
Hi Bernhard, On Friday 15 March 2013 08:47 PM, Bernhard Reutner-Fischer wrote: On 15 March 2013 12:53:55 Vineet Gupta vineet.gup...@synopsys.com wrote: Hi Bernhard, It seems that 950fcf0f68732a9aafaIt inet: res_nclose: free user-buffer breaks the build. This is on ARC port with linthreads.old -8- In file included from libc/inet/res_init.c:8: libc/inet/resolv.c: In function '__res_iclose': libc/inet/resolv.c:3539: error: '__resp' undeclared (first use in this function) Yes, that should read __res_state() instead. Can you confirm this? Not sure what you mean, there's no function named __res_state() I suppose it needs to fallback to usage of global _res, something like below diff --git a/libc/inet/resolv.c b/libc/inet/resolv.c index 769b65f..290bced 100644 --- a/libc/inet/resolv.c +++ b/libc/inet/resolv.c @@ -3536,7 +3536,7 @@ __res_iclose(res_state statp) struct __res_state * rp = statp; __UCLIBC_MUTEX_LOCK(__resolv_lock); if (rp == NULL) - rp = __resp; + rp = _res; __close_nameservers(); __res_sync = NULL; #ifdef __UCLIBC_HAS_IPV6__ That seems to build -Vineet ___ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc
