| Message ID | 20190503184219.19266-1-mathieu.desnoyers@efficios.com |
|---|---|
| Headers | show |
| Series | Restartable Sequences support for glibc 2.30 | expand |
----- On May 3, 2019, at 2:42 PM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote: > Hi, > > This patchset implements basic support for the "rseq" Linux system call > in glibc by registering the rseq TLS abi. > > One patch in this series modifies sched_getcpu() to speed up reading the > current CPU number by reading __rseq_abi.cpu_id when rseq is available. > > This round takes care of the few comments received in the previous one. > > Please consider for inclusion into glibc, Hi Carlos, Is there anything else missing on your end with respect to this patchset ? The associated Linux selftests updates were merged in Linux 5.2-rc1. Thanks, Mathieu > > Thanks, > > Mathieu > > Mathieu Desnoyers (5): > glibc: Perform rseq(2) registration at C startup and thread creation > (v10) > glibc: sched_getcpu(): use rseq cpu_id TLS on Linux (v4) > support record failure: allow use from constructor > support: implement xpthread key create/delete (v2) > rseq registration tests (v4) > > ChangeLog | 66 ++++ > NEWS | 15 + > csu/libc-start.c | 14 +- > misc/rseq-internal.h | 38 ++ > nptl/pthread_create.c | 9 + > support/Makefile | 2 + > support/check.h | 4 + > support/support_record_failure.c | 18 +- > support/xpthread_key_create.c | 25 ++ > support/xpthread_key_delete.c | 24 ++ > support/xthread.h | 2 + > sysdeps/unix/sysv/linux/Makefile | 8 +- > sysdeps/unix/sysv/linux/Versions | 4 + > sysdeps/unix/sysv/linux/aarch64/bits/rseq.h | 43 ++ > sysdeps/unix/sysv/linux/aarch64/libc.abilist | 2 + > sysdeps/unix/sysv/linux/alpha/libc.abilist | 2 + > sysdeps/unix/sysv/linux/arm/libc.abilist | 2 + > sysdeps/unix/sysv/linux/bits/rseq.h | 29 ++ > sysdeps/unix/sysv/linux/csky/libc.abilist | 2 + > sysdeps/unix/sysv/linux/hppa/libc.abilist | 2 + > sysdeps/unix/sysv/linux/i386/libc.abilist | 2 + > sysdeps/unix/sysv/linux/ia64/libc.abilist | 2 + > .../sysv/linux/m68k/coldfire/libc.abilist | 2 + > .../unix/sysv/linux/m68k/m680x0/libc.abilist | 2 + > .../unix/sysv/linux/microblaze/libc.abilist | 2 + > .../sysv/linux/mips/mips32/fpu/libc.abilist | 2 + > .../sysv/linux/mips/mips32/nofpu/libc.abilist | 2 + > .../sysv/linux/mips/mips64/n32/libc.abilist | 2 + > .../sysv/linux/mips/mips64/n64/libc.abilist | 2 + > sysdeps/unix/sysv/linux/nios2/libc.abilist | 2 + > .../linux/powerpc/powerpc32/fpu/libc.abilist | 2 + > .../powerpc/powerpc32/nofpu/libc.abilist | 2 + > .../linux/powerpc/powerpc64/be/libc.abilist | 2 + > .../linux/powerpc/powerpc64/le/libc.abilist | 2 + > .../unix/sysv/linux/riscv/rv64/libc.abilist | 2 + > sysdeps/unix/sysv/linux/rseq-internal.h | 88 +++++ > sysdeps/unix/sysv/linux/rseq-sym.c | 63 +++ > sysdeps/unix/sysv/linux/s390/bits/rseq.h | 30 ++ > .../unix/sysv/linux/s390/s390-32/libc.abilist | 2 + > .../unix/sysv/linux/s390/s390-64/libc.abilist | 2 + > sysdeps/unix/sysv/linux/sched_getcpu.c | 24 +- > sysdeps/unix/sysv/linux/sh/libc.abilist | 2 + > .../sysv/linux/sparc/sparc32/libc.abilist | 2 + > .../sysv/linux/sparc/sparc64/libc.abilist | 2 + > sysdeps/unix/sysv/linux/sys/rseq.h | 50 +++ > sysdeps/unix/sysv/linux/tst-rseq-nptl.c | 367 ++++++++++++++++++ > sysdeps/unix/sysv/linux/tst-rseq.c | 114 ++++++ > sysdeps/unix/sysv/linux/x86/bits/rseq.h | 30 ++ > .../unix/sysv/linux/x86_64/64/libc.abilist | 2 + > .../unix/sysv/linux/x86_64/x32/libc.abilist | 2 + > 50 files changed, 1107 insertions(+), 14 deletions(-) > create mode 100644 misc/rseq-internal.h > create mode 100644 support/xpthread_key_create.c > create mode 100644 support/xpthread_key_delete.c > create mode 100644 sysdeps/unix/sysv/linux/aarch64/bits/rseq.h > create mode 100644 sysdeps/unix/sysv/linux/bits/rseq.h > create mode 100644 sysdeps/unix/sysv/linux/rseq-internal.h > create mode 100644 sysdeps/unix/sysv/linux/rseq-sym.c > create mode 100644 sysdeps/unix/sysv/linux/s390/bits/rseq.h > create mode 100644 sysdeps/unix/sysv/linux/sys/rseq.h > create mode 100644 sysdeps/unix/sysv/linux/tst-rseq-nptl.c > create mode 100644 sysdeps/unix/sysv/linux/tst-rseq.c > create mode 100644 sysdeps/unix/sysv/linux/x86/bits/rseq.h > > -- > 2.17.1
Hi, This patchset implements basic support for the "rseq" Linux system call in glibc by registering the rseq TLS abi. One patch in this series modifies sched_getcpu() to speed up reading the current CPU number by reading __rseq_abi.cpu_id when rseq is available. This round takes care of the few comments received in the previous one. Please consider for inclusion into glibc, Thanks, Mathieu Mathieu Desnoyers (5): glibc: Perform rseq(2) registration at C startup and thread creation (v10) glibc: sched_getcpu(): use rseq cpu_id TLS on Linux (v4) support record failure: allow use from constructor support: implement xpthread key create/delete (v2) rseq registration tests (v4) ChangeLog | 66 ++++ NEWS | 15 + csu/libc-start.c | 14 +- misc/rseq-internal.h | 38 ++ nptl/pthread_create.c | 9 + support/Makefile | 2 + support/check.h | 4 + support/support_record_failure.c | 18 +- support/xpthread_key_create.c | 25 ++ support/xpthread_key_delete.c | 24 ++ support/xthread.h | 2 + sysdeps/unix/sysv/linux/Makefile | 8 +- sysdeps/unix/sysv/linux/Versions | 4 + sysdeps/unix/sysv/linux/aarch64/bits/rseq.h | 43 ++ sysdeps/unix/sysv/linux/aarch64/libc.abilist | 2 + sysdeps/unix/sysv/linux/alpha/libc.abilist | 2 + sysdeps/unix/sysv/linux/arm/libc.abilist | 2 + sysdeps/unix/sysv/linux/bits/rseq.h | 29 ++ sysdeps/unix/sysv/linux/csky/libc.abilist | 2 + sysdeps/unix/sysv/linux/hppa/libc.abilist | 2 + sysdeps/unix/sysv/linux/i386/libc.abilist | 2 + sysdeps/unix/sysv/linux/ia64/libc.abilist | 2 + .../sysv/linux/m68k/coldfire/libc.abilist | 2 + .../unix/sysv/linux/m68k/m680x0/libc.abilist | 2 + .../unix/sysv/linux/microblaze/libc.abilist | 2 + .../sysv/linux/mips/mips32/fpu/libc.abilist | 2 + .../sysv/linux/mips/mips32/nofpu/libc.abilist | 2 + .../sysv/linux/mips/mips64/n32/libc.abilist | 2 + .../sysv/linux/mips/mips64/n64/libc.abilist | 2 + sysdeps/unix/sysv/linux/nios2/libc.abilist | 2 + .../linux/powerpc/powerpc32/fpu/libc.abilist | 2 + .../powerpc/powerpc32/nofpu/libc.abilist | 2 + .../linux/powerpc/powerpc64/be/libc.abilist | 2 + .../linux/powerpc/powerpc64/le/libc.abilist | 2 + .../unix/sysv/linux/riscv/rv64/libc.abilist | 2 + sysdeps/unix/sysv/linux/rseq-internal.h | 88 +++++ sysdeps/unix/sysv/linux/rseq-sym.c | 63 +++ sysdeps/unix/sysv/linux/s390/bits/rseq.h | 30 ++ .../unix/sysv/linux/s390/s390-32/libc.abilist | 2 + .../unix/sysv/linux/s390/s390-64/libc.abilist | 2 + sysdeps/unix/sysv/linux/sched_getcpu.c | 24 +- sysdeps/unix/sysv/linux/sh/libc.abilist | 2 + .../sysv/linux/sparc/sparc32/libc.abilist | 2 + .../sysv/linux/sparc/sparc64/libc.abilist | 2 + sysdeps/unix/sysv/linux/sys/rseq.h | 50 +++ sysdeps/unix/sysv/linux/tst-rseq-nptl.c | 367 ++++++++++++++++++ sysdeps/unix/sysv/linux/tst-rseq.c | 114 ++++++ sysdeps/unix/sysv/linux/x86/bits/rseq.h | 30 ++ .../unix/sysv/linux/x86_64/64/libc.abilist | 2 + .../unix/sysv/linux/x86_64/x32/libc.abilist | 2 + 50 files changed, 1107 insertions(+), 14 deletions(-) create mode 100644 misc/rseq-internal.h create mode 100644 support/xpthread_key_create.c create mode 100644 support/xpthread_key_delete.c create mode 100644 sysdeps/unix/sysv/linux/aarch64/bits/rseq.h create mode 100644 sysdeps/unix/sysv/linux/bits/rseq.h create mode 100644 sysdeps/unix/sysv/linux/rseq-internal.h create mode 100644 sysdeps/unix/sysv/linux/rseq-sym.c create mode 100644 sysdeps/unix/sysv/linux/s390/bits/rseq.h create mode 100644 sysdeps/unix/sysv/linux/sys/rseq.h create mode 100644 sysdeps/unix/sysv/linux/tst-rseq-nptl.c create mode 100644 sysdeps/unix/sysv/linux/tst-rseq.c create mode 100644 sysdeps/unix/sysv/linux/x86/bits/rseq.h