From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wolfgang Denk <wd@denx.de>
Date: Fri, 25 Mar 2011 10:03:15 +0100
Subject: [U-Boot] [PATCH] ftsmc020: enhance for features and asm support.
In-Reply-To: <50FD90C65C53FB45BADEEBCD84FF07F202EC05C3@ATCPCS06.andestech.com>
References: <50FD90C65C53FB45BADEEBCD84FF07F202EC05C3@ATCPCS06.andestech.com>
Message-ID: <20110325090315.1FFE41537B0@gemini.denx.de>
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To: u-boot@lists.denx.de

Dear macpaul at andestech.com,

In message <50FD90C65C53FB45BADEEBCD84FF07F202EC05C3@ATCPCS06.andestech.com> you wrote:
> >
> Neither I ran the command
> 
> "tools/scripts/make-asm-offsets include/faraday/ftsmc020.h
> include/faraday/ftsmc020-genasm.h"
> nor I ran
> sed -ne "/^->/{s:->#\(.*\):/* \1 */:; \
> s:^->\([^ ]*\) [\$#]*\([-0-9]*\) \(.*\):#define \1 (\2) /* \3 */:; \
> s:^->\([^ ]*\) [\$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
> s:->::; p;}" include/faraday/ftsmc020-genasm.h could be work.
> 
> I also tested file faraday/ftpmu010.h.
> It get the same output with output 'sed: -e expression #1, char 47:
> unknown command: `['.'
> Did I execute the script in wrong method? Is there a problem about this
> script?

There is no (known) problem with it, but you have to be careful about
the context you are running in - the script as is is supposed to be
run in "make" context, which means different $ expansion rules then
when you try running directly under a shell.

> Moreover, the structure of ftsmc020 was nested like
> struct ftsmc020 {
>         struct {
>                 unsigned int    cr;     /* 0x00, 0x08, 0x10, 0x18 */
>                 unsigned int    tpr;    /* 0x04, 0x0c, 0x14, 0x1c */
>         } bank[4];
>         unsigned int    pad[8]; /* 0x20 - 0x3c */
>         unsigned int    ssr;    /* 0x40 */
> };
> 
> I didn't see the sed script could support this kind of nested structure
> declaration.
> I guess the sed script could be applied to plain structure declareation.
> Maybe I have a diffcult here.

You could simply un-nest the structure declarations.

> If the script is needed to be rewrote to adapt nested declaration,
> It might need have some complicaticity about parse difference kind of
> nested structure and array.

If I were in your situation I'd probably rather unnest the structs.

> It seems I need to rewrite the structure to be adaptable to the sed
> script.

That seems straightforward to do, indeed.

Best regards,

Wolfgang Denk

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