This series enables aarch64 with ilp32 mode. As supporting work, it introduces ARCH_32BIT_OFF_T configuration option that is enabled for existing 32-bit architectures but disabled for new arches (so 64-bit off_t is is used by new userspace). Also it deprecates getrlimit and setrlimit syscalls prior to prlimit64.
This version is based on linux-next from 2017-03-01. It works with glibc-2.25, and tested with LTP, glibc testsuite, trinity, lmbench, CPUSpec. Patches 1, 2, 3 and 8 are general, and may be applied separately. This is the rebase of v7 - no major changes has been made. Kernel and GLIBC trees: https://github.com/norov/linux/tree/ilp32-20170301 https://github.com/norov/glibc/tree/dev9 (GLIBC patches are managed by Steve Ellcey, so my tree is only for reference.) Changes: v3: https://lkml.org/lkml/2014/9/3/704 v4: https://lkml.org/lkml/2015/4/13/691 v5: https://lkml.org/lkml/2015/9/29/911 v6: https://lkml.org/lkml/2016/5/23/661 v7: RFC nowrap: https://lkml.org/lkml/2016/6/17/990 v7: RFC2 nowrap: https://lkml.org/lkml/2016/8/17/245 v7: RFC3 nowrap: https://lkml.org/lkml/2016/10/21/883 v7: https://lkml.org/lkml/2017/1/9/213 v7: Resend: fixed couple of typos, rebased on next-20170301 Andrew Pinski (6): arm64: rename COMPAT to AARCH32_EL0 in Kconfig arm64: ensure the kernel is compiled for LP64 arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 arm64: ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it arm64: ilp32: introduce ilp32-specific handlers for sigframe and ucontext arm64:ilp32: add ARM64_ILP32 to Kconfig Philipp Tomsich (1): arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov (13): compat ABI: use non-compat openat and open_by_handle_at variants 32-bit ABI: introduce ARCH_32BIT_OFF_T config option asm-generic: Drop getrlimit and setrlimit syscalls from default list arm64: ilp32: add documentation on the ILP32 ABI for ARM64 thread: move thread bits accessors to separated file arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) arm64: ilp32: add is_ilp32_compat_{task,thread} and TIF_32BIT_AARCH64 arm64: introduce binfmt_elf32.c arm64: ilp32: introduce binfmt_ilp32.c arm64: ilp32: share aarch32 syscall handlers arm64: signal: share lp64 signal routines to ilp32 arm64: signal32: move ilp32 and aarch32 common code to separated file arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Documentation/arm64/ilp32.txt | 45 +++++++ arch/Kconfig | 4 + arch/arc/Kconfig | 1 + arch/arc/include/uapi/asm/unistd.h | 1 + arch/arm/Kconfig | 1 + arch/arm64/Kconfig | 19 ++- arch/arm64/Makefile | 5 + arch/arm64/include/asm/compat.h | 19 +-- arch/arm64/include/asm/elf.h | 32 ++--- arch/arm64/include/asm/fpsimd.h | 2 +- arch/arm64/include/asm/ftrace.h | 2 +- arch/arm64/include/asm/hwcap.h | 6 +- arch/arm64/include/asm/is_compat.h | 90 ++++++++++++++ arch/arm64/include/asm/memory.h | 5 +- arch/arm64/include/asm/processor.h | 11 +- arch/arm64/include/asm/ptrace.h | 2 +- arch/arm64/include/asm/seccomp.h | 2 +- arch/arm64/include/asm/signal32.h | 9 +- arch/arm64/include/asm/signal32_common.h | 27 ++++ arch/arm64/include/asm/signal_common.h | 33 +++++ arch/arm64/include/asm/signal_ilp32.h | 38 ++++++ arch/arm64/include/asm/syscall.h | 2 +- arch/arm64/include/asm/thread_info.h | 4 +- arch/arm64/include/asm/unistd.h | 8 +- arch/arm64/include/asm/vdso.h | 6 + arch/arm64/include/uapi/asm/bitsperlong.h | 9 +- arch/arm64/include/uapi/asm/unistd.h | 13 ++ arch/arm64/kernel/Makefile | 18 ++- arch/arm64/kernel/asm-offsets.c | 9 +- arch/arm64/kernel/binfmt_elf32.c | 32 +++++ arch/arm64/kernel/binfmt_ilp32.c | 85 +++++++++++++ arch/arm64/kernel/cpufeature.c | 8 +- arch/arm64/kernel/cpuinfo.c | 20 +-- arch/arm64/kernel/entry.S | 34 +++++- arch/arm64/kernel/entry32.S | 80 ------------ arch/arm64/kernel/entry32_common.S | 107 ++++++++++++++++ arch/arm64/kernel/entry_ilp32.S | 22 ++++ arch/arm64/kernel/head.S | 2 +- arch/arm64/kernel/hw_breakpoint.c | 8 +- arch/arm64/kernel/perf_regs.c | 2 +- arch/arm64/kernel/process.c | 7 +- arch/arm64/kernel/ptrace.c | 80 ++++++++++-- arch/arm64/kernel/signal.c | 102 ++++++++++------ arch/arm64/kernel/signal32.c | 107 ---------------- arch/arm64/kernel/signal32_common.c | 135 ++++++++++++++++++++ arch/arm64/kernel/signal_ilp32.c | 170 ++++++++++++++++++++++++++ arch/arm64/kernel/sys_ilp32.c | 100 +++++++++++++++ arch/arm64/kernel/traps.c | 5 +- arch/arm64/kernel/vdso-ilp32/.gitignore | 2 + arch/arm64/kernel/vdso-ilp32/Makefile | 74 +++++++++++ arch/arm64/kernel/vdso-ilp32/vdso-ilp32.S | 33 +++++ arch/arm64/kernel/vdso-ilp32/vdso-ilp32.lds.S | 95 ++++++++++++++ arch/arm64/kernel/vdso.c | 69 +++++++++-- arch/arm64/kernel/vdso/gettimeofday.S | 20 ++- arch/arm64/kernel/vdso/vdso.S | 6 +- arch/blackfin/Kconfig | 1 + arch/c6x/include/uapi/asm/unistd.h | 1 + arch/cris/Kconfig | 1 + arch/frv/Kconfig | 1 + arch/h8300/Kconfig | 1 + arch/h8300/include/uapi/asm/unistd.h | 1 + arch/hexagon/Kconfig | 1 + arch/hexagon/include/uapi/asm/unistd.h | 1 + arch/m32r/Kconfig | 1 + arch/m68k/Kconfig | 1 + arch/metag/Kconfig | 1 + arch/metag/include/uapi/asm/unistd.h | 1 + arch/microblaze/Kconfig | 1 + arch/mips/Kconfig | 1 + arch/mn10300/Kconfig | 1 + arch/nios2/Kconfig | 1 + arch/nios2/include/uapi/asm/unistd.h | 1 + arch/openrisc/Kconfig | 1 + arch/openrisc/include/uapi/asm/unistd.h | 1 + arch/parisc/Kconfig | 1 + arch/powerpc/Kconfig | 1 + arch/score/Kconfig | 1 + arch/score/include/uapi/asm/unistd.h | 1 + arch/sh/Kconfig | 1 + arch/sparc/Kconfig | 1 + arch/tile/Kconfig | 1 + arch/tile/include/uapi/asm/unistd.h | 1 + arch/tile/kernel/compat.c | 3 + arch/unicore32/Kconfig | 1 + arch/unicore32/include/uapi/asm/unistd.h | 1 + arch/x86/Kconfig | 1 + arch/x86/um/Kconfig | 1 + arch/xtensa/Kconfig | 1 + drivers/clocksource/arm_arch_timer.c | 2 +- include/linux/fcntl.h | 2 +- include/linux/thread_bits.h | 63 ++++++++++ include/linux/thread_info.h | 54 +------- include/uapi/asm-generic/unistd.h | 10 +- 93 files changed, 1586 insertions(+), 408 deletions(-) create mode 100644 Documentation/arm64/ilp32.txt create mode 100644 arch/arm64/include/asm/is_compat.h create mode 100644 arch/arm64/include/asm/signal32_common.h create mode 100644 arch/arm64/include/asm/signal_common.h create mode 100644 arch/arm64/include/asm/signal_ilp32.h create mode 100644 arch/arm64/kernel/binfmt_elf32.c create mode 100644 arch/arm64/kernel/binfmt_ilp32.c create mode 100644 arch/arm64/kernel/entry32_common.S create mode 100644 arch/arm64/kernel/entry_ilp32.S create mode 100644 arch/arm64/kernel/signal32_common.c create mode 100644 arch/arm64/kernel/signal_ilp32.c create mode 100644 arch/arm64/kernel/sys_ilp32.c create mode 100644 arch/arm64/kernel/vdso-ilp32/.gitignore create mode 100644 arch/arm64/kernel/vdso-ilp32/Makefile create mode 100644 arch/arm64/kernel/vdso-ilp32/vdso-ilp32.S create mode 100644 arch/arm64/kernel/vdso-ilp32/vdso-ilp32.lds.S create mode 100644 include/linux/thread_bits.h -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
