Re: Linux-flashplugin7 & rtld - RFC

On Fri, 23 Jun 2006, Norikatsu Shigemura wrote:

> On Wed, 21 Jun 2006 12:39:09 -0400 (EDT)
> Daniel Eischen <deischen_at_freebsd.org> wrote:
>>>> I'm implementing like following codes to libc/libm/libpthread
>>>> on 7-current with SYMVER_ENABLED=yes.
>>> [example]
>>> Ugh... I like parts of this (it's the same I thought about myself), but parts
>>> of this are... not optimal in my opinion.
>>> I don't like to spam our libXXX to contain GLIBC symbols. First I feared that
>> I don't think that is the intent and I would oppose polluting
>> our base libraries with GLIBC symbols.  I think the proposed
>> solution was to make separate libraries with the GLIBC symbols
>> that just call out to our own libraries, and use libmap.conf
>
> 	Affirmative.  ELF Symbol Versioning means no function
> 	of netchild_at_ as said.
>
> 	spamming? junk symbols?  Humm...  I don't think so, but it
> 	is POLICY that I think.  Althought I'm working, I want to
> 	merge 'Userland COMPAT_LINUX technology' to FreeBSD source
> 	tree.  I hope that you do consent.  So I hope to discuss
> 	_at_GLIBC_2.* symbols:-).

No, I would still oppose that.  I think separate libraries
are the way to go.

> 	Yes. I did try to do things, but I didn't get any good way.
> 	And, 'LICENSE PROBLEM'.  We cannot change libflashplugin.so.
> 	Now therefore, the way of objdump is none.
>
>
> 	FYI: I heard one Flash sound on firefox and flash7 and Userland
> 	COMPAT_LINUX and 7-current, but didn't display images:-(.
> 	I implemented following 29 functions.
>
> $ fgrep -r // lib*-glibc/00sample.c
> libc-glibc/00sample.c://hook_and_abort_2(__xstat, 2, 0);

You might want to look at the way I did it using scripts
to parse the symbols from the flashplayer.so and automatically
generating stub functions.

-- 
DE