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When debugging a program on ARMv7 with thread-local storage declared using
"__thread", attempting to print a thread-local variable will result in the
following message:
Cannot find thread-local storage for Thread <snip> (LWP <snip>), executable
file /tmp/tls: capability not available
This can be traced back to uclibc libpthread/nptl_db/td_thr_tls_get_addr.c
which gdb uses to look up the address of the TLS. The function returns
TD_NOCAPAB due to a mismatch in size between the DTV pointer and the size
recorded in the db description. The problem lies in libpthread/nptl_db/db_info.c
which initializes the db with the sizeof the union dtv. Instead it should
be the sizeof a pointer to union dtv.
Fixed the initial size for dtvp to sizeof a pointer, instead of sizeof
the union.
Refer to:
http://sourceware.org/ml/libc-alpha/2006-10/msg00088.html
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=416b630981788c1f08e746e19765aa0e5c2a1360
Signed-off-by: Junling Zheng <zhengjunling@huawei.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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(__pthread_initialize_minimal_internal): Initialize pd->report_events
to that.
This patch helps NPTL report TD_CREATE event, so that GDB could catch the
event and update its thread_list.
Link: http://lists.uclibc.org/pipermail/uclibc/2015-April/048921.html
[shengyong:
- original patch from glibc: commit 7d9d8bd18906fdd17364f372b160d7ab896ce909
- context adjust
- update nptl_db/ChangeLog]
Signed-off-by: Roland McGrath <roland@gnu.org>
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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define NOT_IN_libc / IS_IN_libxxx appropriately
to fix pthread_once
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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This matches a similar change made to glibc.
No functional changes here.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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pthread_getconcurrency / pthread_setconcurrency is OBSOLETE in SUSv4
so disable pthread debug support too
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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driver or ld itself
Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Update all the nptl clean targets (both objects and headers) to
use the new syntax using CLEAN_<full_path> and HEADER_<full_path>.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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NPTL build for x86_64 failed with
LD libthread_db-0.9.32-git.so
.../ld: libpthread/nptl_db/libthread_db_so.a(td_ta_event_getmsg.oS): relocation R_X86_64_PC32 against undefined symbol `__GI_memset' can not be used when making a shared object; recompile with -fPIC
Signed-off-by: Roman I Khimov <khimov@altell.ru>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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Since sublevel releases are not ABI compatible we need to adjust
the soname to include the sublevel version.
This makes it possible to install ABI incompatible versions of the
library side by side so clean upgrades are possible.
Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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consult the 'README.NPTL' file.
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