| Message ID | 1513019223-7603-1-git-send-email-adhemerval.zanella@linaro.org |
|---|---|
| Headers | show |
| Series | nptl: Fix Race conditions in pthread cancellation (BZ#12683) | expand |
Hi Adhemerval! You should still have access to my SH porterbox and if you let me know what to test, I can also test on real m68k hardware. Adrian > On Dec 11, 2017, at 8:06 PM, Adhemerval Zanella <adhemerval.zanella@linaro.org> wrote: > > Another release, another submission for BZ#12683. This time I finished > support for all support archictures and did some testing on more ports > which resulted in a lot of small fixes. > > I have simplified a lot the work required to adjust a new port [1] on > this new cancellable syscall mechanism. A default implementation > at sysdeps/unix/sysv/linux/syscall_cancel.c is provided and used on > architectures (x86_64 and aarch64 for instance). It should works > as long the requires syscall markers (__syscall_cancel_arch_{start,end}) > as placed right before the cancellation flag test and after the > syscall trap instruction respectively. > > However some architecture still requires an assembly crafted > implementation (for instance if the syscall itself is done through a > kernel gate as for i686 or ia64 or if it requires a special gate due > ABI constraint like ARM). In such case the syscall wrapper > should be place at sysdeps/unix/sysv/linux/<arch>/syscall_cancel.S > with following semantic: > > --- > long int __syscall_cancel_arch (volatile unsigned int *cancelhandling, > __syscall_arg_t nr, __syscall_arg_t arg1, __syscall_arg_t arg2, > __syscall_arg_t arg3, __syscall_arg_t arg4, __syscall_arg_t arg5, > __syscall_arg_t arg6) > { > if (*cancelhandling & CANCELED_BITMASK) > __syscall_do_cancel() > > INTERNAL_SYSCALL_DECL (err); > result = INTERNAL_SYSCALL_NCS (nr, err, 6, a1, a2, a3, a4, a5, a6); > if (INTERNAL_SYSCALL_ERROR_P (result, err)) > return -INTERNAL_SYSCALL_ERRNO (result, err); > return result; > } > > * If the architectures requires a cancellation entrypoint for 7 argument > syscalls (as for MIPSo32) it will need to define SYSCALL_CANCEL7_ARG7 > on sysdep.h. > --- > > The another architecture specific code is to obtain both the program > counter and process signal mask in the signal handler. To accomplish it > each architecture implements a new function, ucontext_get_pc, on > sigcontextinfo.h header as: > > --- > static inline uintptr_t > ucontext_get_pc (const void *cxt) > { > // TODO: return current program counter based on uc. Usually > // the CTX points to a ucontext_t, however it is architecture > // dependent (for instance sparc calls with sigcontext). > } > > * If the signal frame signal mask is not directly accessible through the > CTX pointer (either because the kernel invokes the handler with a different > object than ucontext_t, as SPARC; or due type mismatch between kernel and > glibc, as for IA64) the architecture might define UCONTEXT_SIGMASK to > get the uc_mask pointer. > --- > > I currently tested on x86_64-linux-gnu, x86_64-linux-gnu-x32, i686-linux-gnu, > arm-linux-gnueabihf, aarch64-linux-gnu, sparcv9-linux-gnu, sparc64-linux-gnu, > alpha-linux-gnu, and hppa-linux-gnu. I also did some simple tests on > ia64-linux-gnu and mips{64}-linux-gnu (to check for the correctness in the > syscall wrapper implementation). For the rest of support architectures > I just did a cross build/check. > > [1] https://sourceware.org/glibc/wiki/PortStatus > > Adhemerval Zanella (19): > nptl: Fix testcases for new pthread cancellation mechanism > nptl: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: x86_64: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: x32: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: i386: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: powerpc: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: aarch64: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: arm: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: s390: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: ia64: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: alpha: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: m68k: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: microblaze: Fix Race conditions in pthread cancellation > (BZ#12683) > nptl: tile: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: sparc: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: nios2: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: sh: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: mips: Fix Race conditions in pthread cancellation (BZ#12683) > nptl: hppa: Fix Race conditions in pthread cancellation (BZ#12683) > > ChangeLog | 199 +++++++++++++++++++++ > debug/tst-backtrace5.c | 26 +-- > include/libc-pointer-arith.h | 16 +- > io/creat.c | 3 - > io/ppoll.c | 2 - > manual/llio.texi | 4 +- > misc/pselect.c | 2 - > nptl/Makefile | 25 +-- > nptl/Versions | 3 + > nptl/cancellation.c | 101 ----------- > nptl/descr.h | 15 +- > nptl/libc-cancellation.c | 48 ++++- > nptl/lll_timedlock_wait.c | 2 +- > nptl/lll_timedwait_tid.c | 3 +- > nptl/nptl-init.c | 78 +++++--- > nptl/pthreadP.h | 74 +++----- > nptl/pthread_cancel.c | 68 ++----- > nptl/pthread_create.c | 7 +- > nptl/pthread_exit.c | 9 +- > nptl/pthread_join.c | 10 +- > nptl/pthread_timedjoin.c | 9 +- > nptl/sem_wait.c | 8 +- > nptl/tst-cancel-wrappers.sh | 92 ---------- > nptl/tst-cancel2.c | 3 - > nptl/tst-cancel28.c | 94 ++++++++++ > nptl/tst-cancel3.c | 3 - > nptl/tst-cancel4.c | 8 + > rt/Makefile | 1 - > support/temp_file.c | 23 +++ > support/temp_file.h | 6 + > sysdeps/generic/sigcontextinfo.h | 15 ++ > sysdeps/generic/sysdep-cancel.h | 3 - > sysdeps/i386/nptl/tls.h | 11 -- > sysdeps/mips/nptl/tls.h | 2 +- > sysdeps/nptl/Makefile | 3 +- > sysdeps/nptl/aio_misc.h | 13 +- > sysdeps/nptl/gai_misc.h | 13 +- > sysdeps/nptl/lowlevellock.h | 5 +- > sysdeps/posix/open64.c | 12 +- > sysdeps/posix/pause.c | 2 - > sysdeps/posix/sigpause.c | 3 - > sysdeps/posix/sigwait.c | 9 +- > sysdeps/posix/waitid.c | 11 +- > sysdeps/sh/sysdep.h | 1 + > sysdeps/sparc/sparc32/lowlevellock.c | 3 +- > sysdeps/unix/sysdep.h | 118 ++++++++++-- > sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h | 11 ++ > sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h | 13 ++ > sysdeps/unix/sysv/linux/arm/sigcontextinfo.h | 12 ++ > sysdeps/unix/sysv/linux/arm/syscall_cancel.S | 69 +++++++ > sysdeps/unix/sysv/linux/clock_nanosleep.c | 20 +-- > sysdeps/unix/sysv/linux/creat.c | 2 - > sysdeps/unix/sysv/linux/creat64.c | 2 - > sysdeps/unix/sysv/linux/futex-internal.h | 18 +- > .../sysv/linux/hppa/sigcontextinfo.h} | 26 ++- > sysdeps/unix/sysv/linux/hppa/syscall_cancel.S | 82 +++++++++ > sysdeps/unix/sysv/linux/i386/Makefile | 2 +- > sysdeps/unix/sysv/linux/i386/lowlevellock.h | 2 +- > sysdeps/unix/sysv/linux/i386/sigcontextinfo.h | 13 ++ > sysdeps/unix/sysv/linux/i386/syscall_cancel.S | 107 +++++++++++ > sysdeps/unix/sysv/linux/ia64/sigcontextinfo.h | 24 +++ > sysdeps/unix/sysv/linux/ia64/syscall_cancel.S | 94 ++++++++++ > sysdeps/unix/sysv/linux/lowlevellock-futex.h | 34 +++- > sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h | 13 ++ > .../unix/sysv/linux/microblaze/sigcontextinfo.h | 13 ++ > .../unix/sysv/linux/microblaze/syscall_cancel.S | 62 +++++++ > .../unix/sysv/linux/mips/mips32/syscall_cancel.S | 128 +++++++++++++ > sysdeps/unix/sysv/linux/mips/mips32/sysdep.h | 4 + > sysdeps/unix/sysv/linux/mips/sigcontextinfo.h | 13 +- > sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h | 16 ++ > sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h | 16 ++ > sysdeps/unix/sysv/linux/powerpc/syscall.S | 14 ++ > sysdeps/unix/sysv/linux/powerpc/syscall_cancel.S | 64 +++++++ > sysdeps/unix/sysv/linux/pthread_kill.c | 5 +- > sysdeps/unix/sysv/linux/s390/sigcontextinfo.h | 17 ++ > sysdeps/unix/sysv/linux/sh/sigcontextinfo.h | 11 ++ > sysdeps/unix/sysv/linux/sh/syscall_cancel.S | 125 +++++++++++++ > sysdeps/unix/sysv/linux/sigwait.c | 3 - > sysdeps/unix/sysv/linux/sigwaitinfo.c | 3 - > sysdeps/unix/sysv/linux/socketcall.h | 37 +++- > sysdeps/unix/sysv/linux/sparc/lowlevellock.h | 2 +- > .../unix/sysv/linux/sparc/sparc32/sigcontextinfo.h | 52 ++++++ > .../unix/sysv/linux/sparc/sparc32/syscall_cancel.S | 74 ++++++++ > .../libc-cancellation.S => sparc/sparc64/pause.c} | 14 +- > .../unix/sysv/linux/sparc/sparc64/sigcontextinfo.h | 40 +++++ > .../unix/sysv/linux/sparc/sparc64/syscall_cancel.S | 74 ++++++++ > sysdeps/unix/sysv/linux/syscall_cancel.c | 63 +++++++ > sysdeps/unix/sysv/linux/sysdep.h | 17 ++ > sysdeps/unix/sysv/linux/tile/sigcontextinfo.h | 12 ++ > sysdeps/unix/sysv/linux/x86_64/cancellation.S | 115 ------------ > .../unix/sysv/linux/x86_64/librt-cancellation.S | 21 --- > sysdeps/unix/sysv/linux/x86_64/lowlevellock.h | 8 +- > sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h | 11 ++ > sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h | 13 ++ > sysdeps/x86_64/nptl/tcb-offsets.sym | 1 - > sysdeps/x86_64/nptl/tls.h | 11 -- > 96 files changed, 2052 insertions(+), 717 deletions(-) > delete mode 100644 nptl/cancellation.c > delete mode 100644 nptl/tst-cancel-wrappers.sh > create mode 100644 nptl/tst-cancel28.c > create mode 100644 sysdeps/unix/sysv/linux/arm/syscall_cancel.S > rename sysdeps/{nptl/librt-cancellation.c => unix/sysv/linux/hppa/sigcontextinfo.h} (55%) > create mode 100644 sysdeps/unix/sysv/linux/hppa/syscall_cancel.S > create mode 100644 sysdeps/unix/sysv/linux/i386/syscall_cancel.S > create mode 100644 sysdeps/unix/sysv/linux/ia64/syscall_cancel.S > create mode 100644 sysdeps/unix/sysv/linux/microblaze/syscall_cancel.S > create mode 100644 sysdeps/unix/sysv/linux/mips/mips32/syscall_cancel.S > create mode 100644 sysdeps/unix/sysv/linux/powerpc/syscall_cancel.S > create mode 100644 sysdeps/unix/sysv/linux/sh/syscall_cancel.S > create mode 100644 sysdeps/unix/sysv/linux/sparc/sparc32/syscall_cancel.S > rename sysdeps/unix/sysv/linux/{x86_64/libc-cancellation.S => sparc/sparc64/pause.c} (66%) > create mode 100644 sysdeps/unix/sysv/linux/sparc/sparc64/syscall_cancel.S > create mode 100644 sysdeps/unix/sysv/linux/syscall_cancel.c > delete mode 100644 sysdeps/unix/sysv/linux/x86_64/cancellation.S > delete mode 100644 sysdeps/unix/sysv/linux/x86_64/librt-cancellation.S > > -- > 2.7.4
On 11/12/2017 17:18, John Paul Adrian Glaubitz wrote: > Hi Adhemerval! > > You should still have access to my SH porterbox and if you let me know what to test, I can also test on real m68k hardware. > > Adrian > Indeed I am trying to get a full make check on SH porterbox, but installed toolchain is failing on some tests link with "undefined reference to `__fpscr_values@GLIBC_2.2'" and I see to -Wl,-z,defs on linking comment (it was indicating on sysdeps/unix/sysv/linux/sh/Makefile that it is required to suppress it on SH4 to get link work correctly). I have not really dig into, but I could get the testcase build by manually add "-Wl,--ignore-unresolved-symbol,__fpscr_values@GLIBC_2.2", but I do not think this is the correct solution. And running some tst-cancel* directly I see no regression (still checking on all tests in nptl). And if you could check real m68k I will be grateful!
Another release, another submission for BZ#12683. This time I finished support for all support archictures and did some testing on more ports which resulted in a lot of small fixes. I have simplified a lot the work required to adjust a new port [1] on this new cancellable syscall mechanism. A default implementation at sysdeps/unix/sysv/linux/syscall_cancel.c is provided and used on architectures (x86_64 and aarch64 for instance). It should works as long the requires syscall markers (__syscall_cancel_arch_{start,end}) as placed right before the cancellation flag test and after the syscall trap instruction respectively. However some architecture still requires an assembly crafted implementation (for instance if the syscall itself is done through a kernel gate as for i686 or ia64 or if it requires a special gate due ABI constraint like ARM). In such case the syscall wrapper should be place at sysdeps/unix/sysv/linux/<arch>/syscall_cancel.S with following semantic: --- long int __syscall_cancel_arch (volatile unsigned int *cancelhandling, __syscall_arg_t nr, __syscall_arg_t arg1, __syscall_arg_t arg2, __syscall_arg_t arg3, __syscall_arg_t arg4, __syscall_arg_t arg5, __syscall_arg_t arg6) { if (*cancelhandling & CANCELED_BITMASK) __syscall_do_cancel() INTERNAL_SYSCALL_DECL (err); result = INTERNAL_SYSCALL_NCS (nr, err, 6, a1, a2, a3, a4, a5, a6); if (INTERNAL_SYSCALL_ERROR_P (result, err)) return -INTERNAL_SYSCALL_ERRNO (result, err); return result; } * If the architectures requires a cancellation entrypoint for 7 argument syscalls (as for MIPSo32) it will need to define SYSCALL_CANCEL7_ARG7 on sysdep.h. --- The another architecture specific code is to obtain both the program counter and process signal mask in the signal handler. To accomplish it each architecture implements a new function, ucontext_get_pc, on sigcontextinfo.h header as: --- static inline uintptr_t ucontext_get_pc (const void *cxt) { // TODO: return current program counter based on uc. Usually // the CTX points to a ucontext_t, however it is architecture // dependent (for instance sparc calls with sigcontext). } * If the signal frame signal mask is not directly accessible through the CTX pointer (either because the kernel invokes the handler with a different object than ucontext_t, as SPARC; or due type mismatch between kernel and glibc, as for IA64) the architecture might define UCONTEXT_SIGMASK to get the uc_mask pointer. --- I currently tested on x86_64-linux-gnu, x86_64-linux-gnu-x32, i686-linux-gnu, arm-linux-gnueabihf, aarch64-linux-gnu, sparcv9-linux-gnu, sparc64-linux-gnu, alpha-linux-gnu, and hppa-linux-gnu. I also did some simple tests on ia64-linux-gnu and mips{64}-linux-gnu (to check for the correctness in the syscall wrapper implementation). For the rest of support architectures I just did a cross build/check. [1] https://sourceware.org/glibc/wiki/PortStatus Adhemerval Zanella (19): nptl: Fix testcases for new pthread cancellation mechanism nptl: Fix Race conditions in pthread cancellation (BZ#12683) nptl: x86_64: Fix Race conditions in pthread cancellation (BZ#12683) nptl: x32: Fix Race conditions in pthread cancellation (BZ#12683) nptl: i386: Fix Race conditions in pthread cancellation (BZ#12683) nptl: powerpc: Fix Race conditions in pthread cancellation (BZ#12683) nptl: aarch64: Fix Race conditions in pthread cancellation (BZ#12683) nptl: arm: Fix Race conditions in pthread cancellation (BZ#12683) nptl: s390: Fix Race conditions in pthread cancellation (BZ#12683) nptl: ia64: Fix Race conditions in pthread cancellation (BZ#12683) nptl: alpha: Fix Race conditions in pthread cancellation (BZ#12683) nptl: m68k: Fix Race conditions in pthread cancellation (BZ#12683) nptl: microblaze: Fix Race conditions in pthread cancellation (BZ#12683) nptl: tile: Fix Race conditions in pthread cancellation (BZ#12683) nptl: sparc: Fix Race conditions in pthread cancellation (BZ#12683) nptl: nios2: Fix Race conditions in pthread cancellation (BZ#12683) nptl: sh: Fix Race conditions in pthread cancellation (BZ#12683) nptl: mips: Fix Race conditions in pthread cancellation (BZ#12683) nptl: hppa: Fix Race conditions in pthread cancellation (BZ#12683) ChangeLog | 199 +++++++++++++++++++++ debug/tst-backtrace5.c | 26 +-- include/libc-pointer-arith.h | 16 +- io/creat.c | 3 - io/ppoll.c | 2 - manual/llio.texi | 4 +- misc/pselect.c | 2 - nptl/Makefile | 25 +-- nptl/Versions | 3 + nptl/cancellation.c | 101 ----------- nptl/descr.h | 15 +- nptl/libc-cancellation.c | 48 ++++- nptl/lll_timedlock_wait.c | 2 +- nptl/lll_timedwait_tid.c | 3 +- nptl/nptl-init.c | 78 +++++--- nptl/pthreadP.h | 74 +++----- nptl/pthread_cancel.c | 68 ++----- nptl/pthread_create.c | 7 +- nptl/pthread_exit.c | 9 +- nptl/pthread_join.c | 10 +- nptl/pthread_timedjoin.c | 9 +- nptl/sem_wait.c | 8 +- nptl/tst-cancel-wrappers.sh | 92 ---------- nptl/tst-cancel2.c | 3 - nptl/tst-cancel28.c | 94 ++++++++++ nptl/tst-cancel3.c | 3 - nptl/tst-cancel4.c | 8 + rt/Makefile | 1 - support/temp_file.c | 23 +++ support/temp_file.h | 6 + sysdeps/generic/sigcontextinfo.h | 15 ++ sysdeps/generic/sysdep-cancel.h | 3 - sysdeps/i386/nptl/tls.h | 11 -- sysdeps/mips/nptl/tls.h | 2 +- sysdeps/nptl/Makefile | 3 +- sysdeps/nptl/aio_misc.h | 13 +- sysdeps/nptl/gai_misc.h | 13 +- sysdeps/nptl/lowlevellock.h | 5 +- sysdeps/posix/open64.c | 12 +- sysdeps/posix/pause.c | 2 - sysdeps/posix/sigpause.c | 3 - sysdeps/posix/sigwait.c | 9 +- sysdeps/posix/waitid.c | 11 +- sysdeps/sh/sysdep.h | 1 + sysdeps/sparc/sparc32/lowlevellock.c | 3 +- sysdeps/unix/sysdep.h | 118 ++++++++++-- sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h | 11 ++ sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h | 13 ++ sysdeps/unix/sysv/linux/arm/sigcontextinfo.h | 12 ++ sysdeps/unix/sysv/linux/arm/syscall_cancel.S | 69 +++++++ sysdeps/unix/sysv/linux/clock_nanosleep.c | 20 +-- sysdeps/unix/sysv/linux/creat.c | 2 - sysdeps/unix/sysv/linux/creat64.c | 2 - sysdeps/unix/sysv/linux/futex-internal.h | 18 +- .../sysv/linux/hppa/sigcontextinfo.h} | 26 ++- sysdeps/unix/sysv/linux/hppa/syscall_cancel.S | 82 +++++++++ sysdeps/unix/sysv/linux/i386/Makefile | 2 +- sysdeps/unix/sysv/linux/i386/lowlevellock.h | 2 +- sysdeps/unix/sysv/linux/i386/sigcontextinfo.h | 13 ++ sysdeps/unix/sysv/linux/i386/syscall_cancel.S | 107 +++++++++++ sysdeps/unix/sysv/linux/ia64/sigcontextinfo.h | 24 +++ sysdeps/unix/sysv/linux/ia64/syscall_cancel.S | 94 ++++++++++ sysdeps/unix/sysv/linux/lowlevellock-futex.h | 34 +++- sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h | 13 ++ .../unix/sysv/linux/microblaze/sigcontextinfo.h | 13 ++ .../unix/sysv/linux/microblaze/syscall_cancel.S | 62 +++++++ .../unix/sysv/linux/mips/mips32/syscall_cancel.S | 128 +++++++++++++ sysdeps/unix/sysv/linux/mips/mips32/sysdep.h | 4 + sysdeps/unix/sysv/linux/mips/sigcontextinfo.h | 13 +- sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h | 16 ++ sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h | 16 ++ sysdeps/unix/sysv/linux/powerpc/syscall.S | 14 ++ sysdeps/unix/sysv/linux/powerpc/syscall_cancel.S | 64 +++++++ sysdeps/unix/sysv/linux/pthread_kill.c | 5 +- sysdeps/unix/sysv/linux/s390/sigcontextinfo.h | 17 ++ sysdeps/unix/sysv/linux/sh/sigcontextinfo.h | 11 ++ sysdeps/unix/sysv/linux/sh/syscall_cancel.S | 125 +++++++++++++ sysdeps/unix/sysv/linux/sigwait.c | 3 - sysdeps/unix/sysv/linux/sigwaitinfo.c | 3 - sysdeps/unix/sysv/linux/socketcall.h | 37 +++- sysdeps/unix/sysv/linux/sparc/lowlevellock.h | 2 +- .../unix/sysv/linux/sparc/sparc32/sigcontextinfo.h | 52 ++++++ .../unix/sysv/linux/sparc/sparc32/syscall_cancel.S | 74 ++++++++ .../libc-cancellation.S => sparc/sparc64/pause.c} | 14 +- .../unix/sysv/linux/sparc/sparc64/sigcontextinfo.h | 40 +++++ .../unix/sysv/linux/sparc/sparc64/syscall_cancel.S | 74 ++++++++ sysdeps/unix/sysv/linux/syscall_cancel.c | 63 +++++++ sysdeps/unix/sysv/linux/sysdep.h | 17 ++ sysdeps/unix/sysv/linux/tile/sigcontextinfo.h | 12 ++ sysdeps/unix/sysv/linux/x86_64/cancellation.S | 115 ------------ .../unix/sysv/linux/x86_64/librt-cancellation.S | 21 --- sysdeps/unix/sysv/linux/x86_64/lowlevellock.h | 8 +- sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h | 11 ++ sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h | 13 ++ sysdeps/x86_64/nptl/tcb-offsets.sym | 1 - sysdeps/x86_64/nptl/tls.h | 11 -- 96 files changed, 2052 insertions(+), 717 deletions(-) delete mode 100644 nptl/cancellation.c delete mode 100644 nptl/tst-cancel-wrappers.sh create mode 100644 nptl/tst-cancel28.c create mode 100644 sysdeps/unix/sysv/linux/arm/syscall_cancel.S rename sysdeps/{nptl/librt-cancellation.c => unix/sysv/linux/hppa/sigcontextinfo.h} (55%) create mode 100644 sysdeps/unix/sysv/linux/hppa/syscall_cancel.S create mode 100644 sysdeps/unix/sysv/linux/i386/syscall_cancel.S create mode 100644 sysdeps/unix/sysv/linux/ia64/syscall_cancel.S create mode 100644 sysdeps/unix/sysv/linux/microblaze/syscall_cancel.S create mode 100644 sysdeps/unix/sysv/linux/mips/mips32/syscall_cancel.S create mode 100644 sysdeps/unix/sysv/linux/powerpc/syscall_cancel.S create mode 100644 sysdeps/unix/sysv/linux/sh/syscall_cancel.S create mode 100644 sysdeps/unix/sysv/linux/sparc/sparc32/syscall_cancel.S rename sysdeps/unix/sysv/linux/{x86_64/libc-cancellation.S => sparc/sparc64/pause.c} (66%) create mode 100644 sysdeps/unix/sysv/linux/sparc/sparc64/syscall_cancel.S create mode 100644 sysdeps/unix/sysv/linux/syscall_cancel.c delete mode 100644 sysdeps/unix/sysv/linux/x86_64/cancellation.S delete mode 100644 sysdeps/unix/sysv/linux/x86_64/librt-cancellation.S -- 2.7.4