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gcc 4.8 does not support nan flag.
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Fixes compilation of uClibc-ng when UCLIBC_HAS_LONG_DOUBLE_MATH is
used.
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The nested libpthread_nonshared.a and libdl.os shouldn't be included
in the static libc.a. Fixes compile issues for static builds.
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The tests shouldn't include libgcc exception handling functions directly
from libgcc.a when a non-shared gcc compiler is used while compiling
the testcases. These fixes open testsuite regressions found for
ppc and xtensa.
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Remove powerpc64 bits as we only support powerpc32.
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Reorder entries alphabetically (architecture name as order
criterium) and remove unused entries.
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Enable locale application to be build when utils are
build. Remove useless compile and link warnings.
Default to minimal locale builds.
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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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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Seems better and more stable.
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We do not support 2.4 Linux kernels anyway, and almost
all newer 2.6 kernels should have tgkill syscall.
Cleanup the raise situation, pt-raise.c is unused, sync
raise.c with latest GNU libc.
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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The code was disabled a while ago in commit:
814b0901f460a246315bfa7933a661f415bdc7fa
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Fixes a compile error for samba 4.5.0.
Reported-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
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Add some definitions and fix some types to make gdb compile
happy.
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[ glibc commit d3c7e68655 ]
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
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The time to run the tests is very high and always subtests
are failing. We need to fix the subtests and see how to reduce
the time the test is running. At the moment it blocks
my regression testing to much.
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elf-fdpic.h or elf-dsbt.h is included by link.h. When C++ program
includes <link.h>, we get following build failure.
../usr/include/bits/elf-fdpic.h: In function 'void* __reloc_pointer(void*, const elf32_fdpic_loadmap*)':
../usr/include/bits/elf-fdpic.h:95: error: invalid use of 'void'
void pointer addition and subtraction is not allowed in C++ as it has
undetermined size, however in C with language extension it is possible
because sizeof void is treated as one byte.
Instead of performing subtraction on void pointers, typecast it to char*
first.
This build failure is detected by Buildroot autobuilder.
http://autobuild.buildroot.net/results/a10/a10ed48e6eb8411a3d8372f57c05fd11130da0e0/
Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
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A single test with targeting ARM showed that this feature
seems bit rotted. Remove DOMULTI and simplify Makefiles.
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Max ULP for "cos (M_PI_6l * 2.0) == 0.5" in "test-double" sub-test
is set to "0" for ARC. It causes "test-double" test failure.
I realized that this sub-test on ARM gets completely same results.
But it doesn't fails on ARM because max ULP is set to "1" for ARM.
I am wondering, if it was done for any special reason?
Otherwise, set max ULP for "cos (M_PI_6l * 2.0) == 0.5" test to
"1" instead of "0" for ARC.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
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Add -Wdeclaration-after-statement when EXTRA_WARNINGS is enabled.
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The syscall ABI includes the gcc functional calling ABI since a syscall
implies userland caller and kernel callee.
The current gcc ABI (v3) for ARCv2 ISA required 64-bit data be passed in
even-odd register pairs, (potentially punching reg holes when passing such
values as args). This was partly driven by the fact that the double-word
LDD/STD instructions in ARCv2 expect the register alignment and thus gcc
forcing this avoids extra MOV at the cost of a few unused register (which we
have plenty anyways).
This however was rejected as part of upstreaming gcc port to HS. So the new
ABI v4 doesn't enforce the even-odd reg restriction.
Do note that for ARCompact ISA builds v3 and v4 are practically the same in
terms of gcc code generation.
This change is dormant for now (gcc 4.8.x based tools) and will only kick
in with switch to gcc 6.x based tools.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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This is useful to build native gcc on targets supporting
Linuxthreads instead of NPTL.
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__spawni() loops forever when parsing the path variable due to incorrect
pointer update. This patch fixes the issue.
Signed-off-by: Eric Le Bihan <eric.le.bihan.dev@free.fr>
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Fix a regression introduced by commit
0550ecce0e6580c5ad34e9a9a39ff18ccf8774f9
Reported by Buildroot developers.
Embedded test must be extented to ARMv7 thumb2 builds to
find such regressions next time. It wasn't triggered by a
cortex-m4 ARM noMMU build.
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CVE-2016-4429:
The call is technically in a loop, and under certain circumstances
(which are quite difficult to reproduce in a test case), alloca
can be invoked repeatedly during a single call to clntudp_call.
As a result, the available stack space can be exhausted (even
though individual alloca sizes are bounded implicitly by what
can fit into a UDP packet, as a side effect of the earlier
successful send operation).
From GNU libc:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commit;h=bc779a1a5b3035133024b21e2f339fe4219fb11c
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crt1.S needed to use a got relative reference.
Libraries like pthreads define a _init and unless it is GOT, the
linker will fail because it will try to create a dynamic reloc on
.text section, more precisely on __start.
Signed-off-by: Cupertino Miranda <cmiranda@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vlad Zakharov <vzakhar@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
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This was found by Buildroot autobuilders for m68k.
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This commit reverses a change introduced in commit 20554a78a9bba that
split some of the ARC code into two based on whether uClibc was
configured with native threads or not.
The native thread code was updated to use the relocation syntax of
modern binutils, while the non-native code path used a syntax only
accepted in older versions of binutils.
The problem with this is that the choice of old binutils or not is
orthogonal to the choice of native threads or not, and so, inevitably a
user with a recent version of binutils can make the choice to configure
uClibc with non-native thread support, and run into code that will not
assemble.
The solution is either to abandon support for the old tools completely,
or to add a new compile time flag for ARC that is set when the version
of binutils being used is old; this new flag would allow the old
relocation structure to be selected.
In this commit I have simply dropped support for older versions of the
tools.
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This change was inspired by similar change in glibc:
https://sourceware.org/git/?p=glibc.git;a=commit;h=0cb313f7cb0e418b3d56f3a2ac69790522ab825d
Current Linux kernel requires CLONE_VM to be set with CLONE_THREAD
otherwise returning -EINVAL, see man clone2. This means we don't need
to check for both CLONE_THREAD and CLONE_VM instead we may simplify
code a lot and just check 1 bit (CLONE_THREAD).
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
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For thread group case (CLONE_THREAD), the cached PID of new process/thread
need not be reset. The old logic to decide that was flawed as it would be
true only for exact combination of CLONE_THREAD + _VM, but would fail for
CLONE_THREAD + _VM + _xyz.
More detailed tear-down of current and new code below.
Current implementation is:
--------------------->8--------------------
; r12 contains clone flags
mov_s r2, CLONE_THREAD_N_VM; r2 contains bit mask
and_s r2, r2, r12 ; r2 contains bit mask AND clone flags
; but r12 still contains the same flags
brne r2, r12, .Lgo_thread ; here we compare modified mask with
; flags as they were and skip pthread TID/PID
; setup if r2 != r12 which happens all
; the time except clone flags were
; exactly CLONE_THREAD | CLONE_VM
--------------------->8--------------------
New implementation is:
--------------------->8--------------------
; r12 contains clone flags
mov_s r2, CLONE_THREAD_N_VM; r2 contains bit mask
and_s r12, r12, r2 ; r12 contains clone flags AND bit mask
; i.e. we did mask all flags except
; CLONE_THREAD and CLONE_VM
breq r2, r12, .Lgo_thread ; here we compare masked flags with
; target mask and if they match we skip
; pthread TID/PID setup
--------------------->8--------------------
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
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Caught by tst-getpid1 test from uClibc's test-suite.
It looks like original implementation was not correct.
The code in question is supposed to recover PID of the new
thread. And by no means that could happen with clone() syscall
while getpid() does exactly this.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Reported-by: Eugeniy Paltsev <paltsev@synopsys.com>
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This commit adds support for R_ARC_JMP_SLOT relocations during the
bootstrap phase of the dynamic linker. These relocations will be
generated if uClibc-ng is configured with 'DODEBUG=y'.
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Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
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To be more consistent separate all TLS macros in separate files and
remove obsolete macros for not supported architectures.
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
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As this is only implemented for a few architecture and not well
tested, just remove it.
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As this is only implemented for a few architecture and not well
tested, just remove it.
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
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