[PATCH 0/8] Move libpthread unwind-related functionality into libc
Florian Weimer
fweimer@redhat.com
Thu Mar 4 12:10:55 GMT 2021
This series continues my efforts to remove libpthread. Its focus is
unwinding in various forms: DWARF unwinding for new-style cancellation,
longjmp-based unwinding, and callback-based unwinding (legacy
cancellation unwinder).
I have tested intermediate steps with build-many-glibcs.py, and the
final patch also passed testing on i386-linux-gnu,
powerpc64le-linux-gnu, s390x-linux-gnu, x86_64-linux-gnu.
This series depends on this additional patch:
<shlib-compat.h>: Support compat_symbol_reference for _ISOMAC
Florian Weimer (8):
nptl: Move pthread_mutex_consistent into libc
nptl: Move __pthread_cleanup_routine into libc
nptl: Move legacy unwinding implementation into libc
nptl: Move legacy cancelation handling into libc as compat symbols
nptl: Remove longjmp, siglongjmp from libpthread
Legacy unwinder: Remove definition of _Unwind_GetCFA
nptl: Move __pthread_cleanup_upto into libc
nptl: Move __pthread_unwind_next into libc
NEWS | 4 +-
elf/Makefile | 2 +
include/setjmp.h | 4 +-
nptl/Makefile | 26 ++++---
nptl/Versions | 33 ++++++---
nptl/cleanup_compat.c | 16 +++--
nptl/cleanup_defer_compat.c | 72 ++++---------------
nptl/cleanup_routine.c | 12 +++-
nptl/forward.c | 6 --
nptl/libc-cleanup.c | 64 ++++++++++++++++-
nptl/nptl-init.c | 4 --
nptl/pt-longjmp.c | 49 -------------
nptl/pthreadP.h | 21 +++---
nptl/pthread_cancel.c | 10 ++-
nptl/{pt-cleanup.c => pthread_cleanup_upto.c} | 2 +-
nptl/pthread_exit.c | 11 ++-
nptl/pthread_mutex_consistent.c | 22 +++++-
nptl/tst-cleanup4.c | 5 ++
nptl/tst-cleanup4aux.c | 5 ++
nptl/unwind.c | 14 ++--
setjmp/Versions | 4 --
sysdeps/arm/Makefile | 5 --
sysdeps/arm/nptl/unwind-forcedunwind.c | 25 -------
sysdeps/arm/pt-arm-unwind-resume.S | 20 ------
sysdeps/generic/unwind-dw2.c | 8 ---
sysdeps/generic/unwind-resume.c | 14 ++++
.../unwind-resume.c} | 5 +-
sysdeps/nptl/jmp-unwind.c | 8 +--
sysdeps/nptl/libc-lock.h | 59 +++++++--------
sysdeps/nptl/libc-lockP.h | 22 +-----
sysdeps/nptl/pthread-functions.h | 6 --
sysdeps/nptl/pthread.h | 5 +-
sysdeps/nptl/unwind-forcedunwind.c | 64 -----------------
sysdeps/pthread/tst-robust1.c | 4 +-
sysdeps/pthread/tst-robust8.c | 2 +-
sysdeps/pthread/tst-robust9.c | 4 +-
sysdeps/unix/sysv/linux/aarch64/libc.abilist | 11 +++
.../sysv/linux/aarch64/libpthread.abilist | 10 ---
sysdeps/unix/sysv/linux/alpha/libc.abilist | 11 +++
.../unix/sysv/linux/alpha/libpthread.abilist | 10 ---
sysdeps/unix/sysv/linux/arc/libc.abilist | 11 +++
.../unix/sysv/linux/arc/libpthread.abilist | 8 ---
sysdeps/unix/sysv/linux/arm/be/libc.abilist | 11 +++
.../unix/sysv/linux/arm/be/libpthread.abilist | 10 ---
sysdeps/unix/sysv/linux/arm/le/libc.abilist | 11 +++
.../unix/sysv/linux/arm/le/libpthread.abilist | 10 ---
sysdeps/unix/sysv/linux/csky/libc.abilist | 11 +++
.../unix/sysv/linux/csky/libpthread.abilist | 8 ---
sysdeps/unix/sysv/linux/hppa/libc.abilist | 11 +++
.../unix/sysv/linux/hppa/libpthread.abilist | 10 ---
sysdeps/unix/sysv/linux/i386/libc.abilist | 11 +++
.../unix/sysv/linux/i386/libpthread.abilist | 10 ---
sysdeps/unix/sysv/linux/ia64/Makefile | 2 +-
sysdeps/unix/sysv/linux/ia64/libc.abilist | 11 +++
.../unix/sysv/linux/ia64/libpthread.abilist | 10 ---
.../sysv/linux/m68k/coldfire/libc.abilist | 11 +++
.../linux/m68k/coldfire/libpthread.abilist | 10 ---
.../unix/sysv/linux/m68k/m680x0/libc.abilist | 11 +++
.../sysv/linux/m68k/m680x0/libpthread.abilist | 10 ---
.../sysv/linux/microblaze/be/libc.abilist | 11 +++
.../linux/microblaze/be/libpthread.abilist | 10 ---
.../sysv/linux/microblaze/le/libc.abilist | 11 +++
.../linux/microblaze/le/libpthread.abilist | 10 ---
.../sysv/linux/mips/mips32/fpu/libc.abilist | 11 +++
.../sysv/linux/mips/mips32/libpthread.abilist | 10 ---
.../sysv/linux/mips/mips32/nofpu/libc.abilist | 11 +++
.../sysv/linux/mips/mips64/libpthread.abilist | 10 ---
.../sysv/linux/mips/mips64/n32/libc.abilist | 11 +++
.../sysv/linux/mips/mips64/n64/libc.abilist | 11 +++
sysdeps/unix/sysv/linux/nios2/libc.abilist | 11 +++
.../unix/sysv/linux/nios2/libpthread.abilist | 10 ---
.../linux/powerpc/powerpc32/fpu/libc.abilist | 11 +++
.../powerpc/powerpc32/libpthread.abilist | 12 ----
.../powerpc/powerpc32/nofpu/libc.abilist | 11 +++
.../linux/powerpc/powerpc64/be/libc.abilist | 11 +++
.../powerpc/powerpc64/be/libpthread.abilist | 12 ----
.../linux/powerpc/powerpc64/le/libc.abilist | 11 +++
.../powerpc/powerpc64/le/libpthread.abilist | 10 ---
sysdeps/unix/sysv/linux/powerpc/pt-longjmp.c | 61 ----------------
.../unix/sysv/linux/riscv/rv32/libc.abilist | 11 +++
.../sysv/linux/riscv/rv32/libpthread.abilist | 8 ---
.../unix/sysv/linux/riscv/rv64/libc.abilist | 11 +++
.../sysv/linux/riscv/rv64/libpthread.abilist | 8 ---
sysdeps/unix/sysv/linux/s390/Versions | 2 +-
sysdeps/unix/sysv/linux/s390/jmp-unwind.c | 7 +-
.../unix/sysv/linux/s390/libpthread-compat.c | 25 +++++++
sysdeps/unix/sysv/linux/s390/pt-longjmp.c | 33 ---------
.../unix/sysv/linux/s390/s390-32/libc.abilist | 11 +++
.../linux/s390/s390-32/libpthread.abilist | 13 +---
.../unix/sysv/linux/s390/s390-64/libc.abilist | 11 +++
.../linux/s390/s390-64/libpthread.abilist | 13 +---
sysdeps/unix/sysv/linux/sh/be/libc.abilist | 11 +++
.../unix/sysv/linux/sh/be/libpthread.abilist | 10 ---
sysdeps/unix/sysv/linux/sh/le/libc.abilist | 11 +++
.../unix/sysv/linux/sh/le/libpthread.abilist | 10 ---
.../sysv/linux/sparc/sparc32/libc.abilist | 11 +++
.../linux/sparc/sparc32/libpthread.abilist | 10 ---
.../sysv/linux/sparc/sparc64/libc.abilist | 11 +++
.../linux/sparc/sparc64/libpthread.abilist | 10 ---
.../unix/sysv/linux/x86_64/64/libc.abilist | 11 +++
.../sysv/linux/x86_64/64/libpthread.abilist | 10 ---
.../unix/sysv/linux/x86_64/x32/libc.abilist | 11 +++
.../sysv/linux/x86_64/x32/libpthread.abilist | 10 ---
sysdeps/x86/nptl/pt-longjmp.c | 71 ------------------
104 files changed, 648 insertions(+), 834 deletions(-)
delete mode 100644 nptl/pt-longjmp.c
rename nptl/{pt-cleanup.c => pthread_cleanup_upto.c} (98%)
delete mode 100644 sysdeps/arm/nptl/unwind-forcedunwind.c
delete mode 100644 sysdeps/arm/pt-arm-unwind-resume.S
rename sysdeps/{unix/sysv/linux/ia64/unwind-forcedunwind.c => ia64/unwind-resume.c} (87%)
delete mode 100644 sysdeps/nptl/unwind-forcedunwind.c
delete mode 100644 sysdeps/unix/sysv/linux/powerpc/pt-longjmp.c
create mode 100644 sysdeps/unix/sysv/linux/s390/libpthread-compat.c
delete mode 100644 sysdeps/unix/sysv/linux/s390/pt-longjmp.c
delete mode 100644 sysdeps/x86/nptl/pt-longjmp.c
--
2.29.2
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