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path: root/libpthread/nptl/sysdeps/xtensa
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2017-01-28remove PID cachingWaldemar Brodkorb
Follow GNU C Library from c579f48edba88380635ab98cb612030e3ed8691e and remove the PID caching. These simplifies the architecture specific assembly code. The run of the test suite found no regressions, it even solves some of the test failures for x86/x86_64/sparc. Reviewed-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Vineet Gupta <Vineet.Gupta1@synopsys.com> Acked-by: Matthew Fortune <Matthew.Fortune@imgtec.com> Acked-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
2016-12-10xtensa: fix static linkingWaldemar Brodkorb
uClibc-ng 1.0.20 fixed static linking with "libdl" by adding all libdl functions into the libc. On xtensa, though, libdl contains an unresolved reference that is satisfied by the ld.so - which is not a part of the linking in a static case. Signed-off-by: Alexey Neyman <stilor@att.net> Acked-by: Max Filippov <jcmvbkbc@gmail.com>
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>
2016-07-31deduplicate jmpbuf-unwind.hWaldemar Brodkorb
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
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License notices in most of the source files refer to an outdated FSF address.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>
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>
2014-09-22xtensa: add support for NPTLWaldemar Brodkorb
Changes from: https://github.com/foss-xtensa/uClibc/commits/xtensa_nptl Author: Chris Zankel <chris@zankel.net> Author: Baruch Siach <baruch@tkos.co.il>