Re: Stack segments for Aarch64

[Phil Phil via Gdb <gdb@sourceware.org>]

GDB 12.1 coredump post mortem coredump debugging on an x64 Linux desktop.  I do not see a perms column in info proc mappings.
________________________________
From: Luis Machado <luis.machado@arm.com>
Sent: Thursday, June 6, 2024 9:23 AM
To: Phil Phil <heidegg@hotmail.com>; gdb@sourceware.org <gdb@sourceware.org>
Subject: Re: Stack segments for Aarch64

Hi,

On 6/6/24 10:17, Phil Phil via Gdb wrote:
> Greetings,
>
> I'm trying get some memory info on an Aarch64 for a coredump. The aarch64 gdb produces this output for info proc mappings
>
>           Start Addr           End Addr       Size     Offset objfile
>         0x557ead9000       0x5582dee000  0x4315000        0x0 /usr/bin/myproc
>         0x5582dfe000       0x5582f0a000   0x10c000  0x4315000 /usr/bin/myproc
>         0x5582f0a000       0x5582f24000    0x1a000  0x4421000 /usr/bin/myproc
>
> I'm missing at least two things here compared to the x64 output:
>
>
>   *
> No read/write permissions
>   *
> Stack segments are not shown.
>
> Any ideas on how to make these two things visible on Aarch64?
>
> Regards

What aarch64 debugging setup do you have? Versions etc? Remote?

For me, running native gdb on aarch64:

process 1681741
Mapped address spaces:

          Start Addr           End Addr       Size     Offset  Perms  objfile
      0xaaaaaaaa0000     0xaaaaac3c6000  0x1926000        0x0  r-xp   /home/ubuntu/work/build/binutils-gdb-master/gdb/gdb
      0xaaaaac3d5000     0xaaaaacd2a000   0x955000  0x1925000  r--p   /home/ubuntu/work/build/binutils-gdb-master/gdb/gdb
      0xaaaaacfc6000     0xaaaaad069000    0xa3000        0x0  rw-p   [heap]
...
      0xfffffffdf000    0x1000000000000    0x21000        0x0  rw-p   [stack]