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from 8f4632deb3 Linux: rseq registration tests new 706ad1e7af Add the __libc_single_threaded variable new 01ffa6002e manual: Document __libc_single_threaded

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Summary of changes: NEWS | 6 + elf/Makefile | 33 +++- elf/libc_early_init.c | 5 + ...ibc_early_init.c => tst-single_threaded-mod1.c} | 16 +- ...ibc_early_init.c => tst-single_threaded-mod2.c} | 16 +- ...ibc_early_init.c => tst-single_threaded-mod3.c} | 16 +- ...ibc_early_init.c => tst-single_threaded-mod4.c} | 16 +- elf/tst-single_threaded-pthread-static.c | 86 ++++++++++ elf/tst-single_threaded-pthread.c | 174 +++++++++++++++++++++ elf/tst-single_threaded-static-dlopen.c | 57 +++++++ ...c_early_init.c => tst-single_threaded-static.c} | 20 ++- elf/tst-single_threaded.c | 70 +++++++++ htl/pt-create.c | 5 + include/sys/single_threaded.h | 1 + manual/threads.texi | 113 +++++++++++++ misc/Makefile | 5 +- misc/Versions | 3 + elf/libc_early_init.c => misc/single_threaded.c | 22 ++- .../sys/single_threaded.h | 30 ++-- nptl/pthread_create.c | 5 + sysdeps/generic/libc.abilist | 1 + sysdeps/mach/hurd/i386/libc.abilist | 1 + 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/le/libc.abilist | 1 + 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/m68k/coldfire/libc.abilist | 1 + sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist | 1 + sysdeps/unix/sysv/linux/microblaze/be/libc.abilist | 1 + sysdeps/unix/sysv/linux/microblaze/le/libc.abilist | 1 + .../unix/sysv/linux/mips/mips32/fpu/libc.abilist | 1 + .../unix/sysv/linux/mips/mips32/nofpu/libc.abilist | 1 + .../unix/sysv/linux/mips/mips64/n32/libc.abilist | 1 + .../unix/sysv/linux/mips/mips64/n64/libc.abilist | 1 + sysdeps/unix/sysv/linux/nios2/libc.abilist | 1 + .../sysv/linux/powerpc/powerpc32/fpu/libc.abilist | 1 + .../linux/powerpc/powerpc32/nofpu/libc.abilist | 1 + .../sysv/linux/powerpc/powerpc64/be/libc.abilist | 1 + .../sysv/linux/powerpc/powerpc64/le/libc.abilist | 1 + sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist | 1 + sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist | 1 + sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist | 1 + sysdeps/unix/sysv/linux/sh/be/libc.abilist | 1 + sysdeps/unix/sysv/linux/sh/le/libc.abilist | 1 + sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist | 1 + sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist | 1 + sysdeps/unix/sysv/linux/x86_64/64/libc.abilist | 1 + sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist | 1 + 52 files changed, 641 insertions(+), 90 deletions(-) copy elf/{libc_early_init.c => tst-single_threaded-mod1.c} (70%) copy elf/{libc_early_init.c => tst-single_threaded-mod2.c} (70%) copy elf/{libc_early_init.c => tst-single_threaded-mod3.c} (70%) copy elf/{libc_early_init.c => tst-single_threaded-mod4.c} (70%) create mode 100644 elf/tst-single_threaded-pthread-static.c create mode 100644 elf/tst-single_threaded-pthread.c create mode 100644 elf/tst-single_threaded-static-dlopen.c copy elf/{libc_early_init.c => tst-single_threaded-static.c} (70%) create mode 100644 elf/tst-single_threaded.c create mode 100644 include/sys/single_threaded.h copy elf/libc_early_init.c => misc/single_threaded.c (69%) copy elf/libc_early_init.c => misc/sys/single_threaded.h (66%)