Re: Building Emacs on WSL

[Angelo Graziosi]

Hmmm...

Il 21/12/2016 04:20, Paul Eggert ha scritto:
> I see my test program didn't output enough info, and had a typo. Could
> you please try the attached one instead? On Ubuntu 16.04.1 x86-64, this
> new program outputs:
>
> personality (0xffffffff) returns 0x0, errno=0 (Success)
> ADDR_NO_RANDOMIZE was clear
> personality (pers0 | ADDR_NO_RANDOMIZE) returns 0x0, errno=0 (Success)
> ADDR_NO_RANDOMIZE set successfully
> personality (0xffffffff) returns 0x40000, errno=0 (Success)

$ gcc -std=gnu11 -g3 -O2 personality.c -o personality

$ ./personality
personality (0xffffffff) returns 0x0, errno=0 (Success)
ADDR_NO_RANDOMIZE was clear
personality (pers0 | ADDR_NO_RANDOMIZE) returns 0x0, errno=0 (Success)
ADDR_NO_RANDOMIZE set successfully
personality (0xffffffff) returns 0x0, errno=0 (Success)
pers2 != (pers0 | ADDR_NO_RANDOMIZE) ?

> and when run under GDB, it outputs:
>
> personality (0xffffffff) returns 0x40000, errno=0 (Success)
> ADDR_NO_RANDOMIZE was set

$ gdb ./personality
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
[...]
(gdb) run
Starting program: /home/angelog/work/ports-packages/emacs/personality
warning: Error disabling address space randomization: Successo
warning: linux_ptrace_test_ret_to_nx: PTRACE_KILL waitpid returned -1: 
Chiamata di sistema interrotta
personality (0xffffffff) returns 0x0, errno=0 (Success)
ADDR_NO_RANDOMIZE was clear
personality (pers0 | ADDR_NO_RANDOMIZE) returns 0x0, errno=0 (Success)
ADDR_NO_RANDOMIZE set successfully
personality (0xffffffff) returns 0x0, errno=0 (Success)
pers2 != (pers0 | ADDR_NO_RANDOMIZE) ?
[Inferior 1 (process 72) exited normally]
(gdb) q

which looks a bit different...

Ciao,
 Angelo.