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Final iteration to fix libc internal locking if libpthread is pulled
in by dlopen call (directly or indirectly).
We cannot really use the weak symbol trick for shared build, since
the symbols won't get refreshed if libpthread is pulled in dynamically.
In glibc, they have #ifdef SHARED magic to either use pthread_functions
table, or weaks. But as we shared object files with both builds, this
does not sounds good either.
The reintroduces the libc weaks.c, but uses them now only with static
build. For dynamic build, we still use the symbols with same name, but
provide weaks in forward.c so they end up dereferencing the
pthread_functions table indirectly if we are not linked to libpthread.
Mutex initialization is hard coded as inline, as it needs to happen even
if libpthread is not initially loaded.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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I semi-accidentally added include for libc-lock.h because the intention
was to use locking macroes from there. However, we ended up using using
the weak alias stuff. This is additionally good since now this can result
in compile errors like:
In file included from /toolchain/include/bits/uClibc_mutex.h:16,
from /toolchain/include/bits/uClibc_stdio.h:107,
from /toolchain/include/stdio.h:72,
from /work/freetype-2.3.11/include/freetype/config/ftstdlib.h:100,
from ./builds/unix/ftconfig.h:43,
from builds/unix/ftsystem.c:21:
/toolchain/include/bits/libc-lock.h:309: error: expected '=', ',',
';', 'asm' or '__attribute__' before 'void'
Remove the unneeded include causing breakage.
Reported-by: Kevin Day <thekevinday@gmail.com>
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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It is not possible to override for libpthread to override
the weak libc definitions. This has never worked in uclibc, and
does no longer work in glibc either (unless you use LD_DYNAMIC_WEAK).
The proper thing to do is have weak prototypes in libc, and
definitions in libpthread only. This way libc runs even if
those functions are not defined, but just needs to protect
against the NULL values (done by implementing __uclibc_maybe_call).
This fix the problems if libc is linked before libpthread or
if libpthread is pulled by a dependency library.
Signed-off-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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It seems that 57e8823548ad6e65d33b2153edeb18fb0edc20e6 removed completely
sigtimedwait symbol from libc which is wrong. I hope there is not too
many other things like this.
Apparently the libc_hidden_* macros actually make previously hidden
symbols visible globally (creates alias from __GI_* to *). This is
probably ancient confusion from times when gcc did not support
visibility attribute and hiding symbols was done using hacks like
this.
This also adds attribute_hidden to the internal __sigtimedwait for
nptl case.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Conflicts:
Makefile.in
extra/Configs/Config.in
libc/sysdeps/linux/common/bits/kernel-features.h
libc/sysdeps/linux/common/poll.c
libc/sysdeps/linux/common/sysdep.h
libc/sysdeps/linux/sh/sysdep.h
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: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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fixes bug #253
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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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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* Do not include tls.h in aeabi_read_tp.S. Its not needed.
Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Add a common header file to provide macros useful in asm code:
C_LABEL to construct the asm name for a C symbol
cfi_xxx to generate eh_frame unwind information.
Ported from NPTL branch.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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This patch will re-factor and simplify sysdep headers
handling for nptl branch.
The reason is to use some useful macros in asm code (i.e. ENTRY()) that are available
only into nptl branch because are defined in sysdep.h header under the nptl folder
even if they are not related to NPTL at all (this was likely due to a bad choice done
at the early stage of NPTL porting).
This is a required steps for integrating into master branch some asm code available in
nptl branch for sh4.
The main changes are described below:
nptl/sysdeps/generic/sysdep.h (moved) ---> libc/sysdeps/linux/common/sysdep.h
nptl/sysdeps/arm/sysdep.h (moved) ---> libc/sysdeps/linux/arm/sysdep.h
nptl/sysdeps/sh/sysdep.h ---------------------|
nptl/sysdeps/unix/sh/sysdep.h ----------------|
nptl/sysdeps/unix/sysv/linux/sh/sysdep.h -----|
nptl/sysdeps/unix/sysv/linux/sh/sh4/sysdep.h -|
|(merged) ---> libc/sysdeps/linux/sh
nptl/sysdeps/unix/sysdep.h (deleted)
Similarly the mips and arm sysdep.h should be merged and updated as for sh arch.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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On Wed, 27 Jan 2010 07:14:08 +0100, Carmelo AMOROSO <carmelo.amoroso@st.com> wrote:
> I would re-write your patch in a simpler way.
>
> We already have the following
>
> 136 #if defined __UCLIBC_HAS_LFS__ && ! defined __NR_getdents64
> 137 attribute_hidden strong_alias(__getdents,__getdents64)
> 138 #endif
>
> I think that it's simpler to move in the proper place this statement.
Thanks, indeed. If we came into "#elif WORDSIZE == 32" block, above
condition never be true. So we can just move this statement out of
"#if...#elif...#elif...#endif" block. Here is a revised patch.
------------------------------------------------------
From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Subject: [PATCH] getdents: Fix mips64 build
Some archs (such as mips64) do not have getdents64 syscall but have
getdents syscall. Define alias for it.
This fixes regression from 0.9.30.1.
Backgrounds:
This is once done by commit e8b1c674. But after the commit 33bcf733
("Use getdents syscall if kernel provide supports for this instead of
relying upon getdents64."), if __ASSUME_GETDENTS32_D_TYPE was defined
the alias for getdents64 is not defined. The macro
__ASSUME_GETDENTS32_D_TYPE had been effectively ignored until 0.9.30.1
but the commit 0f0f20ab ("Move kernel-features.h header from the
linuxthread directory to a common one...") really enables it.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
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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: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Conflicts:
libc/inet/Makefile.in
libc/inet/hostid.c
Synchronise nptl branch with master branch @ c4b750195714ec7c10aa4de15610c5aae0751c1c
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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... and reinstate comment explaining the gory details
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>
(cherry picked from commit d0a8b14169c6f01dadd07f6b4e14cc335a62f234)
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Conflicts:
libc/signal/sigpause.c
libc/string/x86_64/memset.S
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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also enable __chk_fail and only try to call it when SSP is on
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Was causing build failures if ctype tables were disabled and susv4 was on
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Was causing build failures if ctype tables were disabled and susv4 was on
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Plus related synch.
Add a testcase for the sysconf variables based on the one from glibc
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Disable some IPv6 header defines if IPv6 is off.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Most ports have the same exact mman bit defines, so let's unify things
like the linux kernel has with the asm-generic efforts.
A few ports are left behind as they are non-trivial to merge -- the arch
maintainers can tackle it if they care.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Also, remove unneeded __need_timespec (It cuts off a tiny bit of
work for CPP but is of course not strictly needed).
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Conflicts:
Rules.mak
libc/misc/sysvipc/msgq.c
test/Rules.mak
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: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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[__]isascii need to be defined all the time for the build.
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
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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We don't provide spawn.h let alone any other spawn funcs/types, so don't
set up the _POSIX_SPAWN define that some packages (like vlc) check.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Assign each field one by one rather than stack initialization as gcc will
call memset() to zero out the rest of the structure -- which we don't care
about as the field is unused and not seen outside of the libc.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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We don't provide spawn.h let alone any other spawn funcs/types, so don't
set up the _POSIX_SPAWN define that some packages (like vlc) check.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Assign each field one by one rather than stack initialization as gcc will
call memset() to zero out the rest of the structure -- which we don't care
about as the field is unused and not seen outside of the libc.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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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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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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