Re: [PATCH 5/5] Also look for debug files in gdb_sysroot

[Pedro Alves <palves at redhat dot com>]

On 06/16/2015 10:42 AM, Gary Benson wrote:
> This commit makes GDB look for separate debug files in gdb_sysroot if
> not found in the currently searched locations.  This allows for easier
> analysis of core files from foreign machines using the sysroot option.
> The user creates or mounts a directory containing the necessary
> binaries and debuginfo and then sets GDB's sysroot to that directory
> before starting their debug session.

Looks fine to me, but I think this should be documented in
the manual, and maybe in the online help somewhere as well?
And NEWS too.

Thanks,
Pedro Alves

> 
> gdb/ChangeLog:
> 
> 	* gdb/symfile.c (find_separate_debug_file): In debugdir loop,
> 	also try alternate directory prefixed with gdb_sysroot.
> ---
>  gdb/ChangeLog |    6 ++++++
>  gdb/symfile.c |   11 +++++++++++
>  2 files changed, 17 insertions(+), 0 deletions(-)
> 
> diff --git a/gdb/symfile.c b/gdb/symfile.c
> index 0cc940a..1cd99ea 100644
> --- a/gdb/symfile.c
> +++ b/gdb/symfile.c
> @@ -1613,6 +1613,7 @@ find_separate_debug_file (const char *dir,
>  
>        if (altdir != NULL)
>  	{
> +	  /* Try in the alternate directory directly.  */
>  	  debugfile = build_debug_file_name (no_prefix, debugdir,
>  					     altdir, debuglink, NULL);
>  	  if (separate_debug_file_exists (debugfile, crc32, objfile))
> @@ -1621,6 +1622,16 @@ find_separate_debug_file (const char *dir,
>  	      return debugfile;
>  	    }
>  	  xfree (debugfile);
> +
> +	  /* Try in the alternate directory in gdb_sysroot.  */
> +	  debugfile = build_debug_file_name (gdb_sysroot, debugdir,
> +					     altdir, debuglink, NULL);
> +	  if (separate_debug_file_exists (debugfile, crc32, objfile))
> +	    {
> +	      do_cleanups (back_to);
> +	      return debugfile;
> +	    }
> +	  xfree (debugfile);