[RFC PATCH glibc 0/8] Restartable Sequences enablement
Mathieu Desnoyers
mathieu.desnoyers@efficios.com
Thu Mar 19 14:41:02 GMT 2020
Hi,
Please find the rseq-enablement patchset for comments in this series.
This patch series is based on glibc master branch at commit
1fabdb9908 x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397]
Since the last post, I updated the copyright dates, and moved from using
the __NR_rseq preprocessor macro to introduce __ASSUME_RSEQ, which is
defined when configuring with --enable-kernel=4.18.0 (or more recent).
This change was required now that glibc source tree contains the Linux
system call number definitions.
Florian Weimer helped a lot so far by providing great feedback and
posting a set of 3 patches implementing glibc modifications needed by
rseq. Those are the first 3 patches of this patchset. It would be
appreciated if others can help out by focusing their review effort
specifically on those 3 patches from Florian.
Thanks for the feedback!
Mathieu
Florian Weimer (3):
Introduce <elf_machine_sym_no_match.h>
Implement __libc_early_init
nptl: Start new threads with all signals blocked [BZ #25098]
Mathieu Desnoyers (5):
glibc: Perform rseq(2) registration at C startup and thread creation
(v15)
glibc: sched_getcpu(): use rseq cpu_id TLS on Linux (v6)
support record failure: allow use from constructor
support: implement xpthread key create/delete (v4)
rseq registration tests (v8)
NEWS | 10 +
csu/init-first.c | 4 -
csu/libc-start.c | 5 +
elf/Makefile | 5 +-
elf/Versions | 1 +
elf/dl-call-libc-early-init.c | 41 ++
elf/dl-load.c | 9 +
elf/dl-lookup-direct.c | 116 ++++++
elf/dl-lookup.c | 10 +-
elf/dl-open.c | 24 ++
elf/elf_machine_sym_no_match.h | 34 ++
elf/libc-early-init.h | 35 ++
elf/libc_early_init.c | 30 ++
elf/rtld.c | 4 +
manual/threads.texi | 30 +-
misc/rseq-internal.h | 33 ++
nptl/descr.h | 10 +-
nptl/pthread_create.c | 56 ++-
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/generic/ldsodefs.h | 17 +
sysdeps/mach/hurd/i386/init-first.c | 4 -
sysdeps/mips/dl-machine.h | 15 -
sysdeps/mips/elf_machine_sym_no_match.h | 43 +++
sysdeps/unix/sysv/linux/Makefile | 11 +-
sysdeps/unix/sysv/linux/Versions | 3 +
sysdeps/unix/sysv/linux/aarch64/bits/rseq.h | 43 +++
sysdeps/unix/sysv/linux/aarch64/libc.abilist | 1 +
sysdeps/unix/sysv/linux/alpha/libc.abilist | 1 +
sysdeps/unix/sysv/linux/arm/be/libc.abilist | 1 +
sysdeps/unix/sysv/linux/arm/bits/rseq.h | 83 ++++
sysdeps/unix/sysv/linux/arm/le/libc.abilist | 1 +
sysdeps/unix/sysv/linux/bits/rseq.h | 29 ++
sysdeps/unix/sysv/linux/csky/libc.abilist | 1 +
sysdeps/unix/sysv/linux/hppa/libc.abilist | 1 +
sysdeps/unix/sysv/linux/i386/libc.abilist | 1 +
sysdeps/unix/sysv/linux/ia64/libc.abilist | 1 +
sysdeps/unix/sysv/linux/kernel-features.h | 5 +
.../sysv/linux/m68k/coldfire/libc.abilist | 1 +
.../unix/sysv/linux/m68k/m680x0/libc.abilist | 1 +
.../sysv/linux/microblaze/be/libc.abilist | 1 +
.../sysv/linux/microblaze/le/libc.abilist | 1 +
sysdeps/unix/sysv/linux/mips/bits/rseq.h | 62 +++
.../sysv/linux/mips/mips32/fpu/libc.abilist | 1 +
.../sysv/linux/mips/mips32/nofpu/libc.abilist | 1 +
.../sysv/linux/mips/mips64/n32/libc.abilist | 1 +
.../sysv/linux/mips/mips64/n64/libc.abilist | 1 +
sysdeps/unix/sysv/linux/nios2/libc.abilist | 1 +
sysdeps/unix/sysv/linux/powerpc/bits/rseq.h | 37 ++
.../linux/powerpc/powerpc32/fpu/libc.abilist | 1 +
.../powerpc/powerpc32/nofpu/libc.abilist | 1 +
.../linux/powerpc/powerpc64/be/libc.abilist | 1 +
.../linux/powerpc/powerpc64/le/libc.abilist | 1 +
.../unix/sysv/linux/riscv/rv64/libc.abilist | 1 +
sysdeps/unix/sysv/linux/rseq-internal.h | 76 ++++
sysdeps/unix/sysv/linux/rseq-sym.c | 44 +++
sysdeps/unix/sysv/linux/s390/bits/rseq.h | 37 ++
.../unix/sysv/linux/s390/s390-32/libc.abilist | 1 +
.../unix/sysv/linux/s390/s390-64/libc.abilist | 1 +
sysdeps/unix/sysv/linux/sched_getcpu.c | 30 +-
sysdeps/unix/sysv/linux/sh/be/libc.abilist | 1 +
sysdeps/unix/sysv/linux/sh/le/libc.abilist | 1 +
.../sysv/linux/sparc/sparc32/libc.abilist | 1 +
.../sysv/linux/sparc/sparc64/libc.abilist | 1 +
sysdeps/unix/sysv/linux/sys/rseq.h | 30 ++
sysdeps/unix/sysv/linux/tst-rseq-nptl.c | 354 ++++++++++++++++++
sysdeps/unix/sysv/linux/tst-rseq.c | 115 ++++++
sysdeps/unix/sysv/linux/x86/bits/rseq.h | 30 ++
.../unix/sysv/linux/x86_64/64/libc.abilist | 1 +
.../unix/sysv/linux/x86_64/x32/libc.abilist | 1 +
74 files changed, 1561 insertions(+), 69 deletions(-)
create mode 100644 elf/dl-call-libc-early-init.c
create mode 100644 elf/dl-lookup-direct.c
create mode 100644 elf/elf_machine_sym_no_match.h
create mode 100644 elf/libc-early-init.h
create mode 100644 elf/libc_early_init.c
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/mips/elf_machine_sym_no_match.h
create mode 100644 sysdeps/unix/sysv/linux/aarch64/bits/rseq.h
create mode 100644 sysdeps/unix/sysv/linux/arm/bits/rseq.h
create mode 100644 sysdeps/unix/sysv/linux/bits/rseq.h
create mode 100644 sysdeps/unix/sysv/linux/mips/bits/rseq.h
create mode 100644 sysdeps/unix/sysv/linux/powerpc/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
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