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Am Freitag, 12. Oktober 2012, 16:24:59 schrieb Timur Aydin: |
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> Hi, |
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> |
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> I have done many tests on my ~x86 system to confirm that it is nptl based: |
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> |
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> - I have the nptl and nptlonly use flags in my make.conf and my system |
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> is up to date. |
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> |
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> - Running /lib/libc.so.6 shows: |
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> |
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> ta@bonsai ~ $ /lib/libc.so.6 |
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> GNU C Library stable release version 2.15, by Roland McGrath et al. |
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> Copyright (C) 2012 Free Software Foundation, Inc. |
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> This is free software; see the source for copying conditions. |
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> There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A |
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> PARTICULAR PURPOSE. |
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> Compiled by GNU CC version 4.5.3. |
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> Compiled on a Linux 3.5.0 system on 2012-09-10. |
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> Available extensions: |
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> C stubs add-on version 2.1.2 |
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> crypt add-on version 2.1 by Michael Glad and others |
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> Gentoo patchset 21 |
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> GNU Libidn by Simon Josefsson |
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> Native POSIX Threads Library by Ulrich Drepper et al |
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> Support for some architectures added on, not maintained in glibc |
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> core. |
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> BIND-8.2.3-T5B |
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> libc ABIs: UNIQUE IFUNC |
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> For bug reporting instructions, please see: |
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> <http://www.gnu.org/software/libc/bugs.html>. |
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> |
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> - getconf also indicates nptl: |
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> |
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> ta@bonsai ~ $ getconf GNU_LIBPTHREAD_VERSION |
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> NPTL 2.15 |
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> |
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> |
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> Yet, when I look at the process list, I am seeing all programs that use |
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> threads having uniquey pid's for each thread. I even compiled a simple |
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> program that just creates 5 threads, each sleeping forever. Again, each |
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> thread had a unique pid. |
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> |
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|
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and that is how it is done, isn't it? |
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|
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> I have also checked the kernel config. FUTEX support was enabled, but |
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> the top level selector (EXPERT options) was not selected. I guess the |
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> top level selector just exposes the FUTEX selector and doesn't really |
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> affect whether it is enabled or not. |
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|
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indeed. |
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|
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> |
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> So, what I am wondering now, is my system configured for NPTL or not? |
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|
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pretty sure: yes. |
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|
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How about less YOURAPP: |
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Dynamic section at offset ... contains 27 entries: |
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Tag Type Name/Value |
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0x0000000000000001 (NEEDED) Shared library: .... |
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0x0000000000000001 (NEEDED) Shared library: [libpthread.so.0] |
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? |
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|
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-- |
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#163933 |
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