Re: [PATCH] scripts/gdb: Handle split debug for vmlinux

From: Stephen Boyd
Date: Thu Oct 28 2021 - 18:00:05 EST


Quoting Douglas Anderson (2021-10-28 14:08:49)
> This is related to two previous changes. Commit dfe4529ee4d3
> ("scripts/gdb: find vmlinux where it was before") and commit
> da036ae14762 ("scripts/gdb: handle split debug").
>
> Although Chrome OS has been using the debug suffix for modules for a
> while, it has just recently started using it for vmlinux as well. That
> means we've now got to improve the detection of "vmlinux" to also
> handle that it might end with ".debug".
>
> Cc: Stephen Boyd <swboyd@xxxxxxxxxxxx>
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
> ---
>
> scripts/gdb/linux/symbols.py | 3 ++-
> scripts/gdb/vmlinux-gdb.py | 0
> 2 files changed, 2 insertions(+), 1 deletion(-)
> mode change 100644 => 100755 scripts/gdb/vmlinux-gdb.py
>
> diff --git a/scripts/gdb/linux/symbols.py b/scripts/gdb/linux/symbols.py
> index 08d264ac328b..46f7542db08c 100644
> --- a/scripts/gdb/linux/symbols.py
> +++ b/scripts/gdb/linux/symbols.py
> @@ -148,7 +148,8 @@ lx-symbols command."""
> # drop all current symbols and reload vmlinux
> orig_vmlinux = 'vmlinux'
> for obj in gdb.objfiles():
> - if obj.filename.endswith('vmlinux'):
> + if (obj.filename.endswith('vmlinux') or
> + obj.filename.endswith('vmlinux.debug')):

Looks good.

> orig_vmlinux = obj.filename
> gdb.execute("symbol-file", to_string=True)
> gdb.execute("symbol-file {0}".format(orig_vmlinux))
> diff --git a/scripts/gdb/vmlinux-gdb.py b/scripts/gdb/vmlinux-gdb.py
> old mode 100644
> new mode 100755

Is this mode change important?