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From: Eli Zaretskii <eliz@gnu.org>
To: hx <silent2600@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: changed dlopen flags in dynlib.c, gccemacs crash
Date: Wed, 08 Dec 2021 15:15:19 +0200	[thread overview]
Message-ID: <83tufjw848.fsf@gnu.org> (raw)
In-Reply-To: <CAALPCHvYBuNkj-Bj1tiOp6ReeK420QwttEotK0gCNHKFum3DxQ@mail.gmail.com> (message from hx on Wed, 8 Dec 2021 14:01:29 +0800)

> From: hx <silent2600@gmail.com>
> Date: Wed, 8 Dec 2021 14:01:29 +0800
> 
> I changed the flags of dlopen in dynlib.c:
> 
> dynlib_handle_ptr
> dynlib_open (const char *path)
> {
>   // return dlopen (path, RTLD_LAZY);                                                                                                                    
>                                                                                                                       
>   return dlopen (path, RTLD_LAZY|RTLD_GLOBAL);
> }
> 
> then my dynamic module can load other .so in emacs-27.
> 
> but it make gccemacs-28 crash:
> 
> $ /usr/src/emacs/src/emacs -nw -q
> Fatal error 11: Segmentation fault
> Backtrace:
> /usr/src/emacs/src/emacs(+0x1c4c13)[0x558a8d05fc13]
> /usr/src/emacs/src/emacs(+0x199a0e)[0x558a8d034a0e]
> /usr/src/emacs/src/emacs(+0x1c44d8)[0x558a8d05f4d8]

Please run this under GDB and show the backtrace from the crash in
human-readable form.

Also, please describe what you did immediately before the crash.

Thanks.



  reply	other threads:[~2021-12-08 13:15 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-08  6:01 changed dlopen flags in dynlib.c, gccemacs crash hx
2021-12-08 13:15 ` Eli Zaretskii [this message]
2021-12-09  0:51   ` hx
2021-12-09  8:37     ` Eli Zaretskii
2021-12-09 10:53       ` Andrea Corallo
2021-12-09 12:08         ` Eli Zaretskii
2021-12-09 20:47           ` Andrea Corallo
2021-12-11  2:29       ` hx
2021-12-11  8:23         ` Eli Zaretskii
2021-12-11 18:09           ` Andrea Corallo
2021-12-11 18:23             ` Eli Zaretskii
2021-12-11 20:53               ` Andrea Corallo
2021-12-15 15:26                 ` Andrea Corallo
2021-12-15 16:59                   ` Eli Zaretskii
2022-03-06 14:32             ` Philipp Stephani
2022-03-06 15:32               ` Eli Zaretskii

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