RFC: Treat RTLD_GLOBAL as unique to namespace when used with dlmopen

[Carlos O'Donell]

On 09/15/2015 02:39 PM, Carlos O'Donell wrote:
> On 07/24/2015 02:37 PM, Carlos O'Donell wrote:
>> With a few more patches I get *almost* all the way there:
> 
> [carlos@athas dlmopen_expt]$ ./main
> main(): lmid from dlopen(NULL) is 0 (handle = 0x0x7feda4b49168)
> main(): dlmopen LM_ID_NEWLM ./libabc.so   RTLD_GLOBAL
> main(): lmid from dlopen("libabc.so") is 1 (handle = 0x0x1cc7440)
> main(): invoking abc_start()
>     Called abc_start()
>     abc_start(): lmid from dlopen(NULL) is 1 (handle = 0x0x1cc7440)
>     abc_start(): dlmopen LM_ID_BASE  ./libdef.so   RTLD_GLOBAL
>     abc_start(): dlopen              ./libjkl.so   RTLD_GLOBAL
>     abc_start(): dlopen              ./libmno.so   RTLD_LOCAL
>     abc_start(): dlopen              ./libqrs.so   RTLD_LOCAL
>     abc_start(): invoking qrs_start()
>         Called qrs_start()
>         qrs_start(): lmid from dlopen(NULL) is 1 (handle = 0x0x1cc7440)
>         qrs_start(): lookup of "abc" succeeded
>         qrs_start(): lookup of "def" failed
>         qrs_start(): lookup of "jkl" succeeded
>         qrs_start(): lookup of "mno" failed
>         qrs_start(): lookup of "main" failed
> main(): lookup of "abc" failed
> main(): lookup of "def" succeeded
> main(): lookup of "jkl" failed
> main(): lookup of "mno" failed
> [carlos@athas dlmopen_expt]$ echo $?
> 0
> 
> I'm now passing your test.

All patches on carlos/dlmopen branch, tracking master.

Cheers,
Carlos.