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equivalent for dladdr() functionality on AIX
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Vani
Oct 10, 2002, 7:39:46 AM10/10/02
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Can anyone give me the exact equivalent of dladdr() function on AIX platform.
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Gary R. Hook
Oct 14, 2002, 10:09:07 AM10/14/02
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Nicholas Dronen wrote:
> Vani <van...@rsys.com> wrote:
>
>>Can anyone give me the exact equivalent of dladdr() function on AIX platform.
>
>
> If loadquery(L_GETINFO, . . . ) doesn't work for you (I've not used it
> myself), the obvious and horrifying workaround it to use nm to generate
> the source of loadable shared object that contains a struct or variable
> listing the base address in the object file of some symbol or other. Then,
> at run time, you get the "on-disk" address of the symbol and use dladdr
> to get the "in-memory" address, subtract the former from the latter,
> and, viola, you get at least the load address of the shared library.
> It's a kludge, but I've used it (for a project that had to be portable)
> and it works.
> Vani <van...@rsys.com> wrote:
>
>>Can anyone give me the exact equivalent of dladdr() function on AIX platform.
>
>
> myself), the obvious and horrifying workaround it to use nm to generate
> the source of loadable shared object that contains a struct or variable
> listing the base address in the object file of some symbol or other. Then,
> at run time, you get the "on-disk" address of the symbol and use dladdr
> to get the "in-memory" address, subtract the former from the latter,
> and, viola, you get at least the load address of the shared library.
> It's a kludge, but I've used it (for a project that had to be portable)
> and it works.
*shudder* Not fun for mere mortals.
In other words, there isn't an _exact_equivalent_. AIX doesn't supply
that function, nor anything like it.
--
Gary R. Hook / AIX PartnerWorld for Developers / These opinions are MINE
________________________________________________________________________
Anurag S
Oct 24, 2002, 3:41:15 AM10/24/02
to
Nicholas Dronen <ndr...@io.frii.com> wrote in message news:<3da599e0$0$8229$7586...@news.frii.net>...
> Vani <van...@rsys.com> wrote:
> > Can anyone give me the exact equivalent of dladdr() function on AIX platform.
>
>
> Nicholas
> Vani <van...@rsys.com> wrote:
> > Can anyone give me the exact equivalent of dladdr() function on AIX platform.
>
> If loadquery(L_GETINFO, . . . ) doesn't work for you (I've not used it
> myself), the obvious and horrifying workaround it to use nm to generate
> the source of loadable shared object that contains a struct or variable
> listing the base address in the object file of some symbol or other. Then,
> at run time, you get the "on-disk" address of the symbol and use dladdr
> to get the "in-memory" address, subtract the former from the latter,
> and, viola, you get at least the load address of the shared library.
> It's a kludge, but I've used it (for a project that had to be portable)
> and it works.
>
> Regards,> myself), the obvious and horrifying workaround it to use nm to generate
> the source of loadable shared object that contains a struct or variable
> listing the base address in the object file of some symbol or other. Then,
> at run time, you get the "on-disk" address of the symbol and use dladdr
> to get the "in-memory" address, subtract the former from the latter,
> and, viola, you get at least the load address of the shared library.
> It's a kludge, but I've used it (for a project that had to be portable)
> and it works.
>
>
> Nicholas
Nicholas,
You said "use dladdr to get in-memory-address", but we don't have
dladdr and we want equivalent of dladdr on RS/6000. Am I missing
something in you answer ?
Nicholas Dronen
Oct 24, 2002, 4:04:42 AM10/24/02
to
Anurag S <anurag.s...@rsystems.com> wrote:
> Nicholas Dronen <ndr...@io.frii.com> wrote in message news:<3da599e0$0$8229$7586...@news.frii.net>...
>> Vani <van...@rsys.com> wrote:
>> > Can anyone give me the exact equivalent of dladdr() function on AIX platform.
>> If loadquery(L_GETINFO, . . . ) doesn't work for you (I've not used it
>> myself), the obvious and horrifying workaround it to use nm to generate
>> the source of loadable shared object that contains a struct or variable
>> listing the base address in the object file of some symbol or other. Then,
>> at run time, you get the "on-disk" address of the symbol and use dladdr
>> to get the "in-memory" address, subtract the former from the latter,
>> and, viola, you get at least the load address of the shared library.
>> It's a kludge, but I've used it (for a project that had to be portable)
>> and it works.
> Nicholas Dronen <ndr...@io.frii.com> wrote in message news:<3da599e0$0$8229$7586...@news.frii.net>...
>> Vani <van...@rsys.com> wrote:
>> > Can anyone give me the exact equivalent of dladdr() function on AIX platform.
>> If loadquery(L_GETINFO, . . . ) doesn't work for you (I've not used it
>> myself), the obvious and horrifying workaround it to use nm to generate
>> the source of loadable shared object that contains a struct or variable
>> listing the base address in the object file of some symbol or other. Then,
>> at run time, you get the "on-disk" address of the symbol and use dladdr
>> to get the "in-memory" address, subtract the former from the latter,
>> and, viola, you get at least the load address of the shared library.
>> It's a kludge, but I've used it (for a project that had to be portable)
>> and it works.
> Nicholas,
> You said "use dladdr to get in-memory-address", but we don't have
> dladdr and we want equivalent of dladdr on RS/6000. Am I missing
> something in you answer ?
My mistake. I meant to say "dlsym()".
Regards,
Nicholas
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