linux-kernel - Re: How to resolve "nptl-signals.h : no such file or directory"

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Date:   Sat, 11 Mar 2023 08:52:53 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Ajay Garg <ajaygargnsit@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     Jason Wessel <jason.wessel@...driver.com>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Douglas Anderson <dianders@...omium.org>,
        kgdb-bugreport-request@...ts.sourceforge.net
Subject: Re: How to resolve "nptl-signals.h : no such file or directory"

+add some kernel gdb people + list

On 3/11/23 08:00, Ajay Garg wrote:
> Hi All.
> 
> (Sorry had to write to this list, as the subscription to
> gdb@...rcewave.org seemingly went successful, but never got the

Is that  @sourceware.org ?

> confirmation email. Even sending emails get bounced).
> 
> 
> I have been trying to analyze a core, but unable to receive the
> complete backtrace due to following error :
> 
> #######################################
> #0  0x0088ad6c in __libc_signal_restore_set (set=0xf48f2a78) at
> ../sysdeps/unix/sysv/linux/nptl-signals.h:79
> 79 ../sysdeps/unix/sysv/linux/nptl-signals.h: No such file or directory.
> #######################################
> 
> 
> Following is the (incomplete) backtrace :
> 
> #######################################
> [Current thread is 1 (LWP 7491)]
> (gdb) bt
> #0  0x0088ad6c in __libc_signal_restore_set (set=0xf48f2a78) at
> ../sysdeps/unix/sysv/linux/nptl-signals.h:79
> #1  __GI_raise (sig=sig@...ry=6) at ../sysdeps/unix/sysv/linux/raise.c:48
> #2  0x0088cb78 in __GI_abort () at abort.c:89
> #3  <frame with modified names> 0x049b3a54 in func_1 (ffp=<optimized
> out>, base_name=<optimized out>, max_size=<optimized out>,
> file_type=<optimized out>)  at a/b/c/d/e:58
> #4  0x00000270 in ?? ()
> (gdb)
> #######################################
> 
> 
> Since GDB is able to find raise.c, I did a full base-machine search
> for it, via :
> 
> #######################################
> find / -name raise.c 2> /dev/null
> #######################################
> 
> but could not find raise.c either on the base-machine filesystem.
> 
> 
> So, following are my queries :
> 
> 1.
> Where are raise.c, nptl-signals.h etc. supposed to reside?
> 
> 2.
> How can we bring back the missing nptl-signals.h file?
> 
> 
> Will be grateful for pointers.
> 
> 
> Thanks and Regards,
> Ajay

-- 
~Randy