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Re: [PATCH v4 11/17] dump/dump: Add section string table support


From: Janosch Frank
Subject: Re: [PATCH v4 11/17] dump/dump: Add section string table support
Date: Mon, 1 Aug 2022 11:26:08 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.0

On 7/28/22 15:41, Marc-André Lureau wrote:
Hi

On Tue, Jul 26, 2022 at 6:26 PM Janosch Frank <frankja@linux.ibm.com> wrote:

On 7/26/22 15:12, Marc-André Lureau wrote:
On Tue, Jul 26, 2022 at 4:55 PM Janosch Frank <frankja@linux.ibm.com>
wrote:

On 7/26/22 13:25, Marc-André Lureau wrote:
Hi

On Tue, Jul 26, 2022 at 1:23 PM Janosch Frank <frankja@linux.ibm.com>
wrote:

As sections don't have a type like the notes do we need another way to
determine their contents. The string table allows us to assign each
section an identification string which architectures can then use to
tag their sections with.

There will be no string table if the architecture doesn't add custom
sections which are introduced in a following patch.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
[...]
[..]
        s->length = length;
+    /* First index is 0, it's the special null name */
+    s->string_table_buf = g_array_new(FALSE, TRUE, 1);
+    /*
+     * Allocate the null name, due to the clearing option set to true
+     * it will be 0.
+     */
+    g_array_set_size(s->string_table_buf, 1);

I wonder if GByteArray wouldn't be more appropriate, even if it
doesn't have the clearing option. If it's just for one byte, ...

I don't really care but I need a decision on it to change it :)


I haven't tried, but I think it would be a better fit.

Looking at this a second time there's an issue you should consider:

GByteArray uses guint8 while the GArray uses gchars which are apparently
compatible with normal C chars.

I.e. I need to cast all strings to (const guint8 *) when appending them
to the GByteArray.


Agh, boring.. well, we also have include/qemu/buffer.h that could be
considered perhaps


Why should I change it to something that's hardly being used, i.e. what's the problem here?
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