Re: Building Emacs on WSL

[Fabrice Popineau]

Emacs master fails with the same configuration. It fails bootstrapping:

(gdb) run  --batch  --load loadup bootstrap

Starting program: /mnt/d/Source/emacs/build-emacs-ubuntu/src/temacs --batch  --load loadup bootstrap

warning: Error disabling address space randomization: Succès

warning: linux_ptrace_test_ret_to_nx: PTRACE_KILL waitpid returned -1: Appel système interrompu

[Thread debugging using libthread_db enabled]

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

process 17622 is executing new program: /mnt/d/Source/emacs/build-emacs-ubuntu/src/temacs

[Thread debugging using libthread_db enabled]

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

process 17622 is executing new program: /mnt/d/Source/emacs/build-emacs-ubuntu/src/temacs

[Thread debugging using libthread_db enabled]

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

process 17622 is executing new program: /mnt/d/Source/emacs/build-emacs-ubuntu/src/temacs

[Thread debugging using libthread_db enabled]

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

process 17622 is executing new program: /mnt/d/Source/emacs/build-emacs-ubuntu/src/temacs

I must admit that I don't know how to read what gdb is reporting. 

However, there is a simple fix:

diff --git a/src/emacs.c b/src/emacs.c

index dc13b15..46a0593 100644

--- a/src/emacs.c

+++ b/src/emacs.c

@@ -699,6 +699,7 @@ main (int argc, char **argv)

   bool disable_aslr = dumping;

 # endif

+#if 0

   if (disable_aslr && disable_address_randomization ())

     {

       /* Set this so the personality will be reverted before execs

@@ -712,6 +713,7 @@ main (int argc, char **argv)

       /* If the exec fails, warn and then try anyway.  */

       perror (argv[0]);

     }

+#endif

 #ifndef CANNOT_DUMP

   might_dump = !initialized;

Now, Spacemacs loads as well with master.

Fabrice