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SubjectHow to resolve "nptl-signals.h : no such file or directory"
Hi All.

(Sorry had to write to this list, as the subscription to
gdb@sourcewave.org seemingly went successful, but never got the
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@entry=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

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