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2016-12-10libc/sysdeps/linux/common/madvise.c: disable on noMMU architecturesThomas Petazzoni
Similar to what was done in commit 9945c6d21797553e78cbef8034f6dd16b3824df5 for posix_madvise(). Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-12-02nds32: in latest gcc from Andes, this got renamedWaldemar Brodkorb
2016-11-28posix_madvise not available for noMMUWaldemar Brodkorb
2016-11-27remove UCLIBC_HAS_LFSWaldemar Brodkorb
2016-11-27do not define madvise related macros for noMMU targetsWaldemar Brodkorb
2016-11-27fixup gcc warningsWaldemar Brodkorb
Remove following warning from common code: warning: ISO C90 forbids mixed declarations and code
2016-11-27microblaze: sync sysdep-cancel.h/sydep.h with GNU libcWaldemar Brodkorb
2016-11-27arm: use common ret_ERRVALWaldemar Brodkorb
Fixes mq_send return value and errno issue. Reported-by: Frank Liu <fliu@universalbiosensors.com> Tested-by: Frank Liu <fliu@universalbiosensors.com>
2016-11-27mips: fix SIGILL problem with mips ISA r6Waldemar Brodkorb
2016-11-13NPTL/ARC: provide a kernel assisted atomic cmpxchgVineet Gupta
For hardware configurations lacking LLOCK/SCOND (say ARC750), use a syscall to atomically do the cmpxchg. This is costly and painful, but really the only way out. Note that kenrel only guarantees this to work in a UP configuraion Reported-by: Avinash Patil <avinashp@quantenna.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2016-11-13NPTL/ARC: implement __arch_exchange_32_acq using native EXVineet Gupta
ARC EX instruction maps directly to this primitive, thus helps elide the llock/scond based retry loop where possible. Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2016-11-10nptl: add pthread_getname_np/pthread_setname_np from GNU libcWaldemar Brodkorb
These functions are used by firefox for example. Tested with running firefox on x86 system.
2016-11-04nios2: sync support with glibcWaldemar Brodkorb
Only static linking is supported for now. More debugging and analyzing for ld.so, TLS and NPTL is required. But at least you can bootup a static root fileystem in Qemu.
2016-11-03microblaze: add NPTL/TLS support from GNU libcWaldemar Brodkorb
Not perfect, but a starting point. Some tests of the test suite are failing.
2016-10-31microblaze: use assembly version of clone, fix vforkWaldemar Brodkorb
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2016-10-19ARC: update .note.ABI-tag for ABIv4Vineet Gupta
Cc: Anton Kolesov <akolesov@synopsys.com> Cc: linux-snps-arc@lists.infradead.org Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2016-10-08ppc: do not include copysgnl.c if UCLIBC_HAS_LONG_DOUBLE_MATH enabledWaldemar Brodkorb
Fixes compilation of uClibc-ng when UCLIBC_HAS_LONG_DOUBLE_MATH is used.
2016-10-05cleanup ppc portWaldemar Brodkorb
Remove powerpc64 bits as we only support powerpc32.
2016-09-30remove linux kernel 2.4 modules supportWaldemar Brodkorb
2016-09-26locale: cleanup supportWaldemar Brodkorb
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>
2016-09-26use a single libc and deduplicate threading codeWaldemar Brodkorb
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
2016-09-26always assume tgkill is presentWaldemar Brodkorb
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>
2016-09-21microblaze: fixup headers to make gdb compile happyWaldemar Brodkorb
Add some definitions and fix some types to make gdb compile happy.
2016-09-19elf-{fdpic, dsbt}.h: avoid void pointer's subtractionRahul Bedarkar
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>
2016-08-27remove DOMULTI supportWaldemar Brodkorb
A single test with targeting ARM showed that this feature seems bit rotted. Remove DOMULTI and simplify Makefiles.
2016-08-17ARC: Support syscall ABI v4Vineet Gupta
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>
2016-08-08arm: fix compile in thumb modeWaldemar Brodkorb
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.
2016-08-01arc: crt1: Fix to PIECupertino Miranda
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>
2016-07-31include missing Linux extension headers for poll.hWaldemar Brodkorb
This was found by Buildroot autobuilders for m68k.
2016-07-31arc: clone: Simplify CLONE_THREAD detectionAlexey Brodkin
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>
2016-07-31arc: clone: Fix CLONE_THREAD detectionAlexey Brodkin
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>
2016-07-31arc: clone: Recover PID correctlyAlexey Brodkin
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>
2016-07-31remove unused code, RTLD_PRIVATE_ERRNO is never definedWaldemar Brodkorb
2016-07-31deduplicate jmpbuf-unwind.hWaldemar Brodkorb
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
2016-07-17cleanup CALL_MCOUNT / PROFWaldemar Brodkorb
As this is only implemented for a few architecture and not well tested, just remove it.
2016-07-17x86_64: remove dead code, SHARED is not defined when compilingWaldemar Brodkorb
2016-07-17cleanup PTR_MANGLE/PTR_DEMANGLE supportWaldemar Brodkorb
As this is only implemented for a few architecture and not well tested, just remove it. Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
2016-07-17mips: add regdef.h glibc compatibility headerWaldemar Brodkorb
2016-07-03arm: cleanup redundant macros for syscallsWaldemar Brodkorb
In uClibc-ng the syscall macros are in bits/syscalls.h.
2016-06-30nds32: add support for new architectureWaldemar Brodkorb
Add support for Andes Technology NDS32 architecture. See here http://www.andestech.com/en/index/index.htm for more informaton. Verification of the port from an older uClibc port was done on a sponsored AG101p board. The testsuite only has 5 errors, three are related to an existing bug in dlclose() with LT.old, also happening on cris32 and m68k. Failures to fallocate/posix_fallocate are unresolved. Thanks to Andes Technology sponsoring the hardware and being very helpful while doing the uClibc-ng porting. Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2016-06-25bits/sigset.h: Fix _EXTERN_INLINE redefinitionLeonid Lisovskiy
Commit 251a3c19cb "sleep: employ __USE_EXTERN_INLINES (with necessary fixes)" introduces following problems: 1. __USE_EXTERN_INLINES forcibly enabled build fails ... LD libuClibc-1.0.15.so libc/libc_so.a(cmsg_nxthdr.os): In function `__GI___cmsg_nxthdr': cmsg_nxthdr.c:(.text.__GI___cmsg_nxthdr+0x0): multiple definition of `__GI___cmsg_nxthdr' libc/libc_so.a(close.os):close.c:(.text.__GI___cmsg_nxthdr+0x0): first defined here libc/libc_so.a(creat.os): In function `__GI___cmsg_nxthdr': creat.c:(.text.__GI___cmsg_nxthdr+0x0): multiple definition of `__GI___cmsg_nxthdr' libc/libc_so.a(close.os):close.c:(.text.__GI___cmsg_nxthdr+0x0): first defined here ... 2. libuargp wrongly contains __cmsg_nxthdr/__sigismember/__sigdelset/__sigaddset global symbols on platforms which includes signal.h from sys/procfs.h As result, static linking will fail: TEST_LINK argp/ bug-argp1 /home/wbx/ppc-static/target_qemu-ppc-macppc_uclibc-ng_hard/usr/lib/libc.a(sigsetops.os): In function `__GI___sigismember': sigsetops.c:(.text+0x0): multiple definition of `__sigismember' /home/wbx/ppc-static/target_qemu-ppc-macppc_uclibc-ng_hard/usr/lib/libuargp.a(argp-xinl.os):argp-xinl.c:(.text+0x0): first defined here /home/wbx/ppc-static/target_qemu-ppc-macppc_uclibc-ng_hard/usr/lib/libc.a(sigsetops.os): In function `__GI___sigaddset': sigsetops.c:(.text+0x28): multiple definition of `__sigaddset' /home/wbx/ppc-static/target_qemu-ppc-macppc_uclibc-ng_hard/usr/lib/libuargp.a(argp-xinl.os):argp-xinl.c:(.text+0x28): first defined here /home/wbx/ppc-static/target_qemu-ppc-macppc_uclibc-ng_hard/usr/lib/libc.a(sigsetops.os): In function `__GI___sigdelset': sigsetops.c:(.text+0x4c): multiple definition of `__sigdelset' /home/wbx/ppc-static/target_qemu-ppc-macppc_uclibc-ng_hard/usr/lib/libuargp.a(argp-xinl.os):argp-xinl.c:(.text+0x4c): first defined here We have to partially revert 251a3c19cb to fix problems above. It is safe to do this after commit 162cfaea20 *: inline constant __sig{add,del}set and __sigismember since we are able to use new inlines from within libc and leave the rest of world(__USE_EXTERN_INLINES) equal to glibc now. Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-06-23ARC: Enable shared crt1Vineet Gupta
Currently crt1 takes address of functions (main,_init,_fini) directly which doesn't generate truely position independent code, but zero based values instead. e.g. | __start: | ... | add_s r2,sp,0x4 | mov_s r0, main generates to | 000156ec <__start>: | ... | 156f4: add_s r2,sp,0x4 | 156f6: mov_s r0,0x15f7c | ... | 00015f7c <main>: | 15f7c: push_s blink This works just fine for the normal (non PIE) dynamic executables since they are loaded at address 0. However this is not true for PIE executables. So for Scrt1 we use a true position independent way when taking function addresses. Cc: uclibc@uclibc.org <uclibc@uclibc.org> Cc: devel@uclibc-ng.org <devel@uclibc-ng.org> Cc: Cupertino Miranda <cmiranda@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2016-06-23ARC: Implement .note.ABI-tag section in crt1.SAnton Kolesov
Linux Standard Base specifies section .note.ABI-tag that can be considered as a marker for ELF files targeted to Linux systems. See https://refspecs.linuxfoundation.org/LSB_1.2.0/gLSB/noteabitag.html This section, for example, is used by the GDB to identify Linux ELFs as compared to baremetal ELFs that do not have this section. Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com> Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>
2016-06-19or1k: add dummy sys/user.h for straceWaldemar Brodkorb
2016-06-07ssp: remove SSP legacy codeWaldemar Brodkorb
Nobody should use gcc 3.3 nowadays.
2016-06-07microblaze: remove unused dead codeWaldemar Brodkorb
These files are not used, no regression found while running the testsuite.
2016-06-03ppc: cleanup unsupported ppc64 codeWaldemar Brodkorb
Remove ppc64 bits and bytes, as we don't support ppc64 and it makes the code more readable without the dead code.
2016-05-28sparc: remove unused 64 bit support codeWaldemar Brodkorb
2016-05-24microblaze: fix setjmp/longjmpWaldemar Brodkorb
Sync mostly with GNU libc implementation of setjmp/longjmp. Just generate PIC compatible code, so no difference for static builds are made. Add sysdep.h with some handy assembly macros used inside setjmp.S/__longjmp.S. This unbreaks dynamic linker support, first test suite run only shows 10 errors, which doesn't look so bad.
2016-05-18remove linuxthreads.new, rename linuxthreads.oldWaldemar Brodkorb
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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