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2016-10-13cleanup and fix static linking issuesWaldemar Brodkorb
There was a deadlock hanging in a sycall to futex, which should be solved now. Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2016-10-13ARC: nptl: cancellable wrappers were broken #2Vineet Gupta
Despite the prev fix, tst-mqueue3 was still segfaulting. The issue was BLINK register not restored properly for return 00002690 <mq_timedsend>: 2690: sub r9,r25,0x448 2698: ld r10,[r9] 269c: cmp r10,0 26a0: beq -36 26a4: st.aw blink,[sp,-4] 26a8: st.aw r0,[sp,-4] 26ac: st.aw r1,[sp,-4] 26b0: st.aw r2,[sp,-4] 26b4: st.aw r3,[sp,-4] 26b8: st.aw r4,[sp,-4] 26bc: bl 1e28 <__librt_enable_asynccancel> 26c0: mov r9,r0 26c4: ld.ab r4,[sp,4] 26c8: ld.ab r3,[sp,4] 26cc: ld.ab r2,[sp,4] 26d0: ld.ab r1,[sp,4] 26d4: ld.ab r0,[sp,4] 26d8: ld.ab blink,[sp, 4] <---- function return BLINK 26dc: mov r8,182 26e0: trap_s 0 26e2: cmp r0,-1024 26e6: st.aw r0,[sp,-4] 26ea: mov r0,r9 26ee: bl 1e90 <__librt_disable_asynccancel> <-- BLINK clobbered to next PC 26f2: ld.ab r0,[sp,4] <----| loops here until sp is out of bound 26fa: cmp r0,-1024 | 26fe: jls [blink] -----| 2702: b 15d8 2706: nop_s So the fix was to retain BLINK on stack before function call, and pop it later - 26d8: ld.ab blink,[sp, 4] + 26d8: ld blink,[sp] <--- restore BLINK, but retain on stack 26dc: mov r8,182 26e0: trap_s 0 26e2: cmp r0,-1024 26e6: st.aw r0,[sp,-4] 26ea: mov r0,r9 26ee: bl 1e90 <__librt_disable_asynccancel> 26f2: ld.ab r0,[sp,4] + 26f6: ld.ab blink,[sp,4] <--- finally pop BLINK 26fa: cmp r0,-1024 26fe: jls [blink] Reported-by: Eugeniy Paltsev <paltsev@synopsys.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2016-10-13ARC: nptl: cancellable wrappers were brokenVineet Gupta
This was reported as uClibc test suite failures of tst-mqueue3 and tst-mqueue5. The syscall args were getting clobbered, so use scratch regs which are not used for syscall args 00002690 <mq_timedsend>: ; SINGLE_THREAD_P 2690: sub r1,r25,0x448 <--- clobers r1, r2 2698: ld r2,[r1] 269c: cmp r2,0 26a0: bz mq_timedsend_nocancel ; DOCARGS (saves syscall args but r1, r2 clobbered already) 26a4: st.aw blink,[sp,-4] 26a8: st.aw r0,[sp,-4] 26ac: st.aw r1,[sp,-4] 26b0: st.aw r2,[sp,-4] 26b4: st.aw r3,[sp,-4] 26b8: st.aw r4,[sp,-4] 26bc: bl 1e28 <__librt_enable_asynccancel> Reported-by: Eugeniy Paltsev <paltsev@synopsys.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2016-10-08cleanup libc.aWaldemar Brodkorb
The nested libpthread_nonshared.a and libdl.os shouldn't be included in the static libc.a. Fixes compile issues for static builds.
2016-10-05cleanup ppc portWaldemar Brodkorb
Remove powerpc64 bits as we only support powerpc32.
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
2016-09-26linuxthreads: use tkill syscall for raiseWaldemar Brodkorb
Seems better and more stable.
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>
2016-09-26remove dead code and documentationWaldemar Brodkorb
The code was disabled a while ago in commit: 814b0901f460a246315bfa7933a661f415bdc7fa Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2016-09-19linuxthreads: Fix up pthread.h for XPG7.Leonid Lisovskiy
[ glibc commit d3c7e68655 ] Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-08-16linuxthreads: install libpthread_nonshared.aWaldemar Brodkorb
This is useful to build native gcc on targets supporting Linuxthreads instead of NPTL.
2016-07-31deduplicate jmpbuf-unwind.hWaldemar Brodkorb
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
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>
2016-07-10x86_64: use C implementation for pthread_cond_wait/pthread_cond_timedwaitWaldemar Brodkorb
Add test case for the deadlock detection. Reported-By: Martin Willi <martin@strongswan.org>
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>
2016-06-23libs: install backward compatibility symlinksAlexey Brodkin
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>
2016-06-18remove unused MakefilesWaldemar Brodkorb
2016-06-12xtensa: use generic lowlevellockWaldemar Brodkorb
Simplify and use generic lowlevellock. Tested-by: Waldemar Brodkorb <wbx@uclibc-ng.org> Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-06-12metag: use generic lowlevellockWaldemar Brodkorb
Simplify and use generic lowlevellock. Tested-by: Waldemar Brodkorb <wbx@uclibc-ng.org> Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-06-12arc: use generic lowlevellockWaldemar Brodkorb
Simplify and use generic lowlevellock. Tested-by: Waldemar Brodkorb <wbx@uclibc-ng.org> Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-05-31ARM: nptl: Use generic lowlevellock.c, patch from glibcLeonid Lisovskiy
lowlevellock.c for arm differs from the generic lowlevellock.c only in insignificant ways, so can be removed. Follow glibc commit 6d96f5e4c0 Solves __lll_timedlock_wait busy-wait issues described at http://sourceware.org/bugzilla/show_bug.cgi?id=15119 Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-05-31linuxthreads.old: Fix segfault when pthread_mutex_unlock() called against ↵Leonid Lisovskiy
unlocked NORMAL mutex. Althought, it is undefined behavior, there is no reason for segfault. Program received signal SIGSEGV, Segmentation fault. __pthread_unlock (lock=lock@entry=0x804b03c <lock+16>) at libpthread/linuxthreads.old/spinlock.c:231 231 (&lock->__status, oldstatus, (long)(thr->p_nextlock) & ~1L)) It occurs only on platforms which has HAS_COMPARE_AND_SWAP defined. Restore glibc commit fbaf6e72d6 "spinlock.c (__pthread_unlock): Don't crash if called for an untaken mutex." behavior, broken later by commit 4ad1d0cfbf. Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-05-31arm: add non-assembly versions of pthread_spin_lock/pthread_spin_trylockWaldemar Brodkorb
Sync pthread_spin_lock/pthread_spin_trylock with GNU libc as it avoids any usage of deprecated SWP instruction. This allows to build uClibc-ng for ARMv8 Cortex-A53 CPU in 32 Bit mode.
2016-05-28linuxthreads: Fix warnings in pthread_tryjoin_np(), pthread_timedjoin_np()Leonid Lisovskiy
Accidentally, commit 43ef9c6b3 wasn't taken into account. Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-05-28sigaction: fix for THREADS_NATIVEBaruch Siach
Commit 9c4fce55a (nptl: remove sigaction, sigprocmask, and sigfillset from libpthread) removed pt-sigaction.c from the build to fix static build. However, since the libc sigaction is weak when HAS_THREADS is enabled, static build is not be affected. Tested for xtensa, x86, MIPS32 targets. Fixes nptl/tst-signal7. Moreover, commit 9193a76bb from the 0.9.33 branch has the right version. Ref.: http://patchwork.ozlabs.org/patch/286084/ Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-05-24microblaze: fix linuxthreads supportWaldemar Brodkorb
Got the working code from https://github.com/jdkoftinoff/mb-linux-msli/, otherwise SIGILL while using linuxthreads.
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
2016-05-07libpthread: add missing file for gdbserverWaldemar Brodkorb
copy file from linuxthreads to be able to compile gdbserver.
2016-04-15replace FSF addresses with URLsNikola Forró
License notices in most of the source files refer to an outdated FSF address. Replace it with URL, like in the rest of the source files.Signed-off-by: Nikola Forró <nforro@redhat.com>
2016-04-05remove accidentally added files while cleaning up incomplete sparcv9 supportWaldemar Brodkorb
2016-04-05nptl: remove useless text filesWaldemar Brodkorb
2016-03-31arm: simplify handling of Thumb related optionsThomas Petazzoni
Currently, the Thumb support on ARM has three related Config.in options, which are not trivial for users to understand, and are in fact not needed: - The USE_BX option is not needed: knowing whether BX is available or not is easy. If you have an ARM > v4 or ARMv4T, then BX is available, otherwise it's not. This is the logic used in glibc. - The USE_LDREXSTREX option is not needed: whenever Thumb2 is available, ldrex/strex are available, so we can simply rely on __thumb2__ to determine whether ldrex/strex should be used, without requiring a Config.in option. - Once USE_BX and USE_LDREXSTREX are removed, the only thing left that COMPILE_IN_THUMB does is to set -mthumb. This makes the option unnecessary, as on ARM at least, the user is already supposed to pass -march=<foo> or other compiler options tuning the library for a specific ARM variant. There is no reason to do otherwise for Thumb, which allows to get rid of the COMPILE_IN_THUMB option. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-01-25hppa: unbreak toolchain buildingWaldemar Brodkorb
At least allow to build a toolchain for hppa. Sync some headers with glibc.
2016-01-10NPTL: fix infinite recursionWaldemar Brodkorb
fix infinite recursion on application exit triggered by linking libc before libpthread. Patch from OpenWrt. Reported-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-01-10NPTL: Fix __pthread_once old style declarationWaldemar Brodkorb
Trivial fix. Signed-Off-By: Leonid Lisovskiy <lly.dev@gmail.com>
2016-01-06linuxthreads.old: Implement pthread_tryjoin_np(), pthread_timedjoin_np()Leonid Lisovskiy
Some applications needs it. Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-01-02remove deprecated architectures v850/i960Waldemar Brodkorb
Both architectures are more or less deprecated. No Linux upstream support, no gcc support for uClinux.
2015-12-22use arch specific thread stack size for nptlWaldemar Brodkorb
Use the arch specific thread stack size for nptl if the size returned by getrlimits exceeds it - fixes threads on systems with only 16 MB RAM. Patch from OpenWRT Reported-by: Leonid Lisovskiy <lly.dev@gmail.com>
2015-12-17reduce stack cache size to save memory spaceWaldemar Brodkorb
Idea from different projects as OpenWrt and others. https://lists.openwrt.org/pipermail/openwrt-devel/2013-November/022299.html https://github.com/wl500g/toolchain/blob/master/toolchain/uClibc/patches/0.9.32/980-stack-cache-maxsize.patch
2015-12-09Do not support localised optimizations this helps to have a global -O levelKhem Raj
Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2015-12-05good by niosWaldemar Brodkorb
Get rid of NIOS support. We try to support NIOSII.
2015-12-05remove sh64 supportWaldemar Brodkorb
No real hardware available. The project for sh64 with sh5 seems dead since 10 years. Gcc will remove support for it soon.
2015-12-05remove __UCLIBC_ASM_GLOBAL_DIRECTIVE__Waldemar Brodkorb
.globl can be used for every architecture so remove the define. Sync with GNU C library.
2015-12-05remove __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__Waldemar Brodkorb
It's even no longer required for non-ported ppc64 architecture. Sync with GNU C library. This simplify the macros in include/libc-symbols.h.
2015-11-30xtensa: avoid some compiler warningsWaldemar Brodkorb
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2015-10-22NPTL/ARC: fix __lll_lock_wait_private redefinition for static linksVineet Gupta
Commit 2d9740a65a "uclibc: nptl: fix __lll_lock_wait_private multiple definition" did a sweeping change which did for all in tree arches at that time (ARC wasn't) Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-13or1k: add missing fileWaldemar Brodkorb
2015-10-12fix static binaries linked with pthread and compiled with sspWaldemar Brodkorb
Move TLS initialization for static builds up to the calling function as suggested by Daniel Fahlgren. Reported-By: Daniel Fahlgren <daniel@fahlgren.se>
2015-10-09add new architecture support for or1kWaldemar Brodkorb
Information about Openrisc: http://opencores.org/or1k/Main_Page Integrated from: https://github.com/openrisc/uClibc-or1k
2015-10-08xtensa: support call0 ABIMax Filippov
Most changes are mechanical replacement of 'retw' instruction with 'abi_ret' macro, defined to 'retw' or 'ret' according to ABI. Assembly code that makes calls is duplicated for call0 ABI with changed register numbers for parameters/return value and call instruction. 'entry' instructions are replaced with 'abi_entry' macro. More interesting changes: - non-leaf assembly functions (e.g. _dl_tlsdesc_dynamic, _dl_linux_resolve, SYSCALL_ERROR_HANDLER, PSEUDO) now need to preserve registers around intermediate calls they make, use temporary stack frame for that; - setjmp/longjmp only need to save and restore return address, stack pointer and callee-saved registers in the jmpbuf; - __clone and syscall functions had hardcoded offsets to parameter passed on stack, on call0 ABI they don't need stack frame, so the offset is different. Replace these offsets with FRAMESIZE macro. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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