Re: [PATCH v2 2/2] kbuild: handle excessively long argument lists

[jjohnson]

On 2021-01-14 17:12, Masahiro Yamada wrote:
> On Fri, Jan 15, 2021 at 6:50 AM Jeff Johnson <jjohnson@xxxxxxxxxxxxxx> 
> wrote:
> > From: Mahesh Kumar Kalikot Veetil <mkalikot@xxxxxxxxxxxxxx>
> >
> > Modules with a large number of compilation units may be
> > exceeding AR and LD command argument list. Handle this gracefully by
> > writing the long argument list in a file. The command line options
> > read from file are inserted in place of the original @file option.
> >
> > The usage is well documented at
> > https://www.gnu.org/software/make/manual/html_node/File-Function.html
> >
> > Signed-off-by: Mahesh Kumar Kalikot Veetil <mkalikot@xxxxxxxxxxxxxx>
> > Signed-off-by: Jeff Johnson <jjohnson@xxxxxxxxxxxxxx>
> > ---
>
>
>
>
> First, is this a real problem?
> If so, which module is exceeding the command line limit?

On 2021-01-14 17:12, Masahiro Yamada wrote:
> First, is this a real problem?
> If so, which module is exceeding the command line limit?

Mahesh & I appreciate all of the feedback.

The issue is seen in an Android environment with an out-of-tree
driver. The combination of long path names and a large number
of source files is leading to the issue.

Since Mahesh & I are not Kbuild gurus, is there an alternative
solution to this issue?

Jeff

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