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Re: Linker script and dependency search path
Hi,
Mike Frysinger <vapier@gentoo.org> writes:
> On Friday 21 May 2010 10:05:18 Ludovic CourtÃs wrote:
>> Mike Frysinger writes:
>> > On Thursday 20 May 2010 05:35:25 Ludovic CourtÃs wrote:
>> >> Hans-Peter Nilsson <hp@bitrange.com> writes:
>> >> > You're looking for -rpath-link; cf. ld.info.
>> >>
>> >> Yes, but thatâs inconvenient for the libc itself: I find it more
>> >> convenient if linking with glibc just works without passing additional
>> >> flags (as on GNU/Linux), and augmenting the linker script does that
>> >> nicely.
>> >
>> > you get the same behavior with glibc+linux cross-compilers. if you dont
>> > use a sysrooted toolchain, the linker scripts have troubles finding
>> > things.
>>
>> Thereâs a significant difference though: on GNU/Linux doesnât have
>> anything NEEDED (except ld-linux.so).
>
> that isnt true ... glibc linker scripts pull in libc_nonshared.a too. but
> even the ldso needs to be looked up & located somehow.
Sorry, I wasnât clear:
--8<---------------cut here---------------start------------->8---
$ uname -o
GNU/Linux
$ objdump -x ~/.nix-profile/lib/libc.so.6 |grep NEEDED
NEEDED ld-linux-x86-64.so.2
--8<---------------cut here---------------end--------------->8---
compared to:
--8<---------------cut here---------------start------------->8---
$ uname -o
GNU
$ objdump -x /lib/libc.so.0.3 |grep NEEDED
NEEDED ld.so.1
NEEDED libmachuser.so.1
NEEDED libhurduser.so.0.3
--8<---------------cut here---------------end--------------->8---
Thanks,
Ludoâ.