Date: Sun, 2 Jul 2006 22:54:11 +0900 From: Norikatsu Shigemura <nork@FreeBSD.org> To: Daniel Eischen <deischen@FreeBSD.org> Cc: Alexander@Leidinger.net, current@FreeBSD.org, nork@FreeBSD.org, kabaev@gmail.com Subject: Re: Linux-flashplugin7 & rtld - RFC Message-ID: <20060702225411.4bd0e2dd.nork@FreeBSD.org> In-Reply-To: <Pine.GSO.4.64.0606261426570.23995@sea.ntplx.net> References: <44986777.6070601@FreeBSD.org> <20060621061437.GA53019@fit.vutbr.cz> <ygeodwn2fea.wl%ume@mahoroba.org> <2265.211.18.249.19.1150871779.squirrel@mail.ninth-nine.com> <20060621121114.h6udocel5wsgg8sg@netchild.homeip.net> <2692.219.127.74.121.1150885501.squirrel@mail.ninth-nine.com> <20060621155053.d6lseiz8z4ow8wo8@netchild.homeip.net> <Pine.GSO.4.64.0606211204300.23942@sea.ntplx.net> <20060623013106.d4397e26.nork@FreeBSD.org> <Pine.GSO.4.64.0606221244240.427@sea.ntplx.net> <20060622230416.3907a848@kan.dnsalias.net> <20060625191405.d0e78240.nork@FreeBSD.org> <Pine.GSO.4.64.0606261426570.23995@sea.ntplx.net>
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On Mon, 26 Jun 2006 15:06:33 -0400 (EDT)
Daniel Eischen <deischen@freebsd.org> wrote:
> The check for the object providing the correct version should
> still be done, but it needs to be checking the correct (libmap'd)
> object.
Eureka!!!
I understand why my approch should be integrated to libc/libm/
libpthread, and deischen's approch failuer. So I can sperate
library from libc/libm/libpthread.
deischen's LPW:
$ readelf -Ws flash7.so | fgrep open
71: 00001760 54 FUNC LOCAL DEFAULT 11 popen
110: 000025e0 54 FUNC LOCAL DEFAULT 11 iconv_open
185: 00001520 54 FUNC LOCAL DEFAULT 11 fopen
198: 000016e0 54 FUNC LOCAL DEFAULT 11 opendir
These are bad.
$ readelf -Ws flash7.so | fgrep pthread_
:
27: 00000000 117 FUNC GLOBAL DEFAULT UND _pthread_mutex_init@LIBTHREAD_1_0 (13)
:
70: 00000f80 94 FUNC LOCAL DEFAULT 11 pthread_mutex_init@GLIBC_2.0
:
These are good.
So it should be fixed like following:
flash7.so: flash7.map ${FLASH7OBJ}
${CC} -shared -o $@ ${CFLAGS} ${FLASH7OBJ} \
-Wl,--version-script=flash7.map -lc -lm -lpthread -lstdc++
~~~~
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