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Core Development Tools/Discussion/General/ldrel -S on QNX 6.5.0 causes crash/List of Posts
Forum Topic - ldrel -S on QNX 6.5.0 causes crash: (11 Items)
   
Update
Kevin Stallard(deleted)
02/28/2011 8:09 AM
post83568
ldrel -S on QNX 6.5.0 causes crash   
When ldrel is invoked when I specify a stack size, my application won't start.  It crashes.

Using 6.5 Momentics  installation.  

I had this issue with 6.3.2 when I was updating compilers.  I reinstalled bin utils (2.18 at the time) as well as QNX 
and the compiler I was using, and it fixed it that time.  But this time I'm using a fresh QNX 6.5 install.

Any ideas?

Thanks
Kevin
Ryan Mansfield(deleted)
02/28/2011 9:12 AM
post83572
Re: ldrel -S on QNX 6.5.0 causes crash   
On 11-02-28 08:09 AM, Kevin Stallard wrote:
> When ldrel is invoked when I specify a stack size, my application won't
> start. It crashes.
>
> Using 6.5 Momentics installation.
>
> I had this issue with 6.3.2 when I was updating compilers. I reinstalled
> bin utils (2.18 at the time) as well as QNX and the compiler I was
> using, and it fixed it that time. But this time I'm using a fresh QNX
> 6.5 install.
>
> Any ideas?

Is the binary you're ldrel'ing built with the 6.5.0 toolchain or is this 
an older binary? What options to ldrel are you specifying?

Regards,

Ryan Mansfield
Kevin Stallard(deleted)
02/28/2011 10:47 AM
post83577
Re: ldrel -S on QNX 6.5.0 causes crash   
Yes, it's with the 6.5.0 tool chain.  I'm using the stack size entry on the linker tab.  If I add -vv as other options I
 see:

C:/QNX650/host/win32/x86/usr/bin/ldrel -L -S 8192 C:\DOCUME~1\Kevin\LOCALS~1\Temp\1\2qccuzCF29\tmp_qcc_6904 C:/home/
Kevin/Projects/ACS/StackTest/x86/o-g/StackTest_g
Aleksandar Ristovski(deleted)
02/28/2011 10:48 AM
post83578
Re: ldrel -S on QNX 6.5.0 causes crash   
Ldd will need more than 8k
Sent from my BB 

----- Original Message -----
From: Kevin Stallard [mailto:community-noreply@qnx.com]
Sent: Monday, February 28, 2011 10:47 AM
To: general-toolchain <post83577@community.qnx.com>
Subject: Re: ldrel -S on QNX 6.5.0 causes crash

Yes, it's with the 6.5.0 tool chain.  I'm using the stack size entry on the linker tab.  If I add -vv as other options I
 see:

C:/QNX650/host/win32/x86/usr/bin/ldrel -L -S 8192 C:\DOCUME~1\Kevin\LOCALS~1\Temp\1\2qccuzCF29\tmp_qcc_6904 C:/home/
Kevin/Projects/ACS/StackTest/x86/o-g/StackTest_g



_______________________________________________

General
http://community.qnx.com/sf/go/post83577
Kevin Stallard(deleted)
02/28/2011 10:53 AM
post83580
Re: ldrel -S on QNX 6.5.0 causes crash   
Really?  I thought the default stack size was something along the order 4k.  I just tried 16k with no go...but 32K seems
 to work.

Wow...I thought 8k was getting kind of big for a stack size?   Can you point me to some reading on this subject?  When I
 was using 6.3.2, a 4k stack size was fine (or at least that is my recollection).

Thanks
Kevin
Ryan Mansfield(deleted)
02/28/2011 10:54 AM
post83581
Re: ldrel -S on QNX 6.5.0 causes crash   
On 11-02-28 10:53 AM, Kevin Stallard wrote:
> Really? I thought the default stack size was something along the order
> 4k. I just tried 16k with no go...but 32K seems to work.

The default stack size is 512k for all archs except for arm where its 128k.

Regards,

Ryan Mansfield
Kevin Stallard(deleted)
02/28/2011 10:57 AM
post83583
Re: ldrel -S on QNX 6.5.0 causes crash   
Wow. I had no idea.  I wonder where i've been in the last few years....and I thought I was pushing it by asking for 16k.
  

Thanks for the heads up.

Kevin
Ryan Mansfield(deleted)
02/28/2011 10:58 AM
post83584
Re: ldrel -S on QNX 6.5.0 causes crash   
On 11-02-28 10:57 AM, Kevin Stallard wrote:
> Wow. I had no idea. I wonder where i've been in the last few
> years....and I thought I was pushing it by asking for 16k.

I should mention the default is also lazily allocated (e.g. ldrel -S -L).

Regards,

Ryan Mansfield
Kevin Stallard(deleted)
02/28/2011 11:07 AM
post83586
Re: ldrel -S on QNX 6.5.0 causes crash   
Any way to make it non-lazy through the IDE"s build options?  It allows me to specify the stack size, but the -L option 
is added automatically....

Thanks for the info.  

Kevin
Aleksandar Ristovski(deleted)
02/28/2011 10:56 AM
post83582
Re: ldrel -S on QNX 6.5.0 causes crash   
This is due to lazy binding support in 650 .
Sent from my BB 

----- Original Message -----
From: Kevin Stallard [mailto:community-noreply@qnx.com]
Sent: Monday, February 28, 2011 10:53 AM
To: general-toolchain <post83580@community.qnx.com>
Subject: Re: ldrel -S on QNX 6.5.0 causes crash

Really?  I thought the default stack size was something along the order 4k.  I just tried 16k with no go...but 32K seems
 to work.

Wow...I thought 8k was getting kind of big for a stack size?   Can you point me to some reading on this subject?  When I
 was using 6.3.2, a 4k stack size was fine (or at least that is my recollection).

Thanks
Kevin




_______________________________________________

General
http://community.qnx.com/sf/go/post83580
Kevin Stallard(deleted)
02/28/2011 10:48 AM
post83579
Re: ldrel -S on QNX 6.5.0 causes crash   
I've attached the test project I am using here:
Attachment: Compressed file StackTest.zip 3.96 KB

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