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linuxthreads use a helper function to invoke signal handlers, this
function needs stack unwinding information to enable stack unwinding
from signal handlers over signal frames.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Similar to musl libc a single libc has many benefits and solves
some open issues with uClibc-ng.
- no pthread_mutex_* weak symbols exported anymore
- applications no longer failing to link when either
-lrt or -lpthread are missing for dynamic and static linking mode
- smaller C library
- slightly better runtime performance
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This is useful to build native gcc on targets supporting
Linuxthreads instead of NPTL.
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Simplify the switch from uClibc to uClibc-ng.
Apps already built against uClibc-0.9.x.y require .so.0
libs to present on target which in case of current uClibc-ng is
not the case and those apps could not be run.
This change creates symlinks from .so.1 to .so.0 for
most of other libs in the same way as it was done by
23e96d89b6ab "ldso: install backward compatibility symlink by default"
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Waldemar Brodkorb <wbx@uclibc-ng.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Anton Kolesov <akolesov@synopsys.com>
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Linuxthreads.new isn't really useful with the existence
of NPTL/TLS for well supported architectures. There is no
reason to use LT.new for ARM/MIPS or other architectures
supporting NPTL/TLS. It is not available for noMMU architectures
like Blackfin or FR-V. To simplify the live of the few uClibc-ng
developers, LT.new is removed and LT.old is renamed to LT.
LINUXTHREADS_OLD -> UCLIBC_HAS_LINUXTHREADS
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This reverts commit 6b6ede3d15f04fe825cfa9f697507457e3640344.
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Otherwise you get following linking error, because
of missing functions in libc.a:
undefined reference to `__libc_enable_asynccancel'
Fix by Thorsten Glaser while hacking session.
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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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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.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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Handle O=
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Previously the old headers were left in include/ leading to spurious compile failures.
This is ugly as it can get (we resort to sneaking -L in for the moment) but
good enough for now. The worst thing which can happen is that we ln these
headers once per invocation of make, nothing more.
If some installation of make(1) complains about the "-L" then wrap it in
ifneq ($(findstring check-symlink,$(.FEATURES)),)
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More details: http://uclibc.org/lists/uclibc/2008-June/019509.html
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- tidy up PTHREADS_DEBUG_SUPPORT by using per-target STRIP_FLAGS for the few
This fixes the spurious rebuilds bernd and vda were seeing with libpthreads.
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libc when one of the source files changes.
Since there are more places which want to depend on $(libc), fix them all to
use a new variable $(libc.depend), which contains the filename for which we
have a rule.
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implementation when built without SHARED flag as reported
by Will Newton <will.newton@gmail.com>
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- adjust setting flags accordingly to use (hardcoded, see below) -Wl,
Potential improvements:
*) --warn-unresolved-symbols should perhaps be used for all libs
*) eventually rename LDFLAGS to CC_LDFLAGS
*) probe for compiler driver's notion of flag to use for passing in
linker flags (i.e. don't hardcode "-Wl,")
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linuxthreads[_db] as well, don't try on slow box
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libc_hidden_proto from old version
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Makefile.in, disable __res_state, unavailable in resolv.h
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of latest glibc version
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problem to libpthread
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config option
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not exist, we reinclude the including Makefile. Moved arch/common fpu_control.h link creation into main Makefile.in. Updated the link creation script to remove all the other Makefiles
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to _dl_setup_stack_chk_guard, as in glibc. SSP requires now binutils-2.16.1 and newer. Add NOT_IN_libc/IS_IN_libc. Began using -DSHARED in uClibc_main.c, there are more candidates in there. Move back dl_protect_relro to it's earlier place.
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possible. Add clean targets for linuxthreads[_db].
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archs lack proper crt1. The Makefiles in extra/scripts are intended to be linked into each dir, where it is necessary to build locally.
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