Re: [RFC PATCH 00/27] ARM64: support ILP32

From: Yury Norov
Date: Tue Jun 21 2016 - 22:09:22 EST

On Tue, Jun 21, 2016 at 08:06:18PM +0800, Zhangjian (Bamvor) wrote:
> Hi,
>
>
> In our test, we need to fix stack pointer in makecontext. Not sure
> if it should be a standalone patch:

Thank you, I'll take it.

>
> From 1d51ca34034ef83ea602874a93e26fd158ddd214 Mon Sep 17 00:00:00 2001
> From: Jun Ji <jijun2@xxxxxxxxxx>
> Date: Fri, 29 Apr 2016 17:20:23 +0800
> Subject: [PATCH] fix for makecontext error
>
> Signed-off-by: Jun Ji <jijun2@xxxxxxxxxx>
>
> ---
> sysdeps/unix/sysv/linux/aarch64/makecontext.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/sysdeps/unix/sysv/linux/aarch64/makecontext.c b/sysdeps/unix/sysv/linux/aarch64/makecontext.c
> index 34f91a3..55a26a3 100644
> --- a/sysdeps/unix/sysv/linux/aarch64/makecontext.c
> +++ b/sysdeps/unix/sysv/linux/aarch64/makecontext.c
> @@ -42,18 +42,18 @@ void
> __makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
> {
> extern void __startcontext (void);
> - unsigned long int *sp;
> + unsigned long long *sp;
> va_list ap;
> int i;
>
> - sp = (unsigned long int *)
> + sp = (unsigned long long *)
> ((uintptr_t) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size);
>
> /* Allocate stack arguments. */
> sp -= argc < 8 ? 0 : argc - 8;
>
> /* Keep the stack aligned. */
> - sp = (unsigned long int *) (((uintptr_t) sp) & -16L);
> + sp = (unsigned long long *) (((uintptr_t) sp) & -16L);
>
> ucp->uc_mcontext.regs[19] = (uintptr_t) ucp->uc_link;
> ucp->uc_mcontext.sp = (uintptr_t) sp;
> @@ -64,9 +64,9 @@ __makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
> va_start (ap, argc);
> for (i = 0; i < argc; ++i)
> if (i < 8)
> - ucp->uc_mcontext.regs[i] = va_arg (ap, unsigned long int);
> + ucp->uc_mcontext.regs[i] = va_arg (ap, unsigned long long);
> else
> - sp[i - 8] = va_arg (ap, unsigned long int);
> + sp[i - 8] = va_arg (ap, unsigned long long);
>
> va_end (ap);
> }
> --
> 1.8.4.5
>
> Regards
>
> Bamvor
>
> On 2016/6/21 13:06, Yury Norov wrote:
> >This series enables aarch64 port with ilp32 mode.
> >
> >After long discussions in kernel list, we finally got
> >consensus on how ABI should look. This patchset adds
> >support for the ABI in GLIBC. It is tested with LTP
> >with no big regressions comparing to LP64 and AARCH32.
> >
> >Though it's very raw. Please be patient reviewing it.
> >
> >ABI details:
> > - types are taken from AARCH32, next types turned to 64-bit,
> > as modern requirement for new APIs tells:
> > ino_t is u64 type
> > off_t is s64 type
> > blkcnt_t is s64 type
> > fsblkcnt_t is u64 type
> > fsfilcnt_t is u64 type
> > - 64-bit arguments are passed in syscall as register pair,
> > as kernel internally clears top halves for all input regs;
> > - standard syscall table is used;
> > - 32-bit time_t is used. AARCH64/ILP32 is waiting for general
> > fix of Y2038 problem just like other 32-bit arches;
> > - stat{64}, statfs{64} structures are of the identical layout
> > with LP64. Corresponding syscalls are taken from 64-bit code.
> >
> >Links:
> >This series: https://github.com/norov/glibc/commits/ilp32-2.23
> >Kernel series: https://github.com/norov/linux/commits/ilp32-nowrap
> >Kernel in LKML: https://lkml.org/lkml/2016/6/17/990
> >
> >Please review it. Any comments appreciated.
> >
> >Yury.
> >
> >Andrew Pinski (24):
> > [AARCH64] Fix utmp struct for compatibility reasons.
> > [AARCH64] Add header guards to sysdep.h headers.
> > Add dynamic ILP32 AARCH64 relocations to elf.h
> > [AARCH64] Add PTR_REG, PTR_LOG_SIZE, and PTR_SIZE. Use it in
> > LDST_PCREL and LDST_GLOBAL.
> > [AARCH64] Use PTR_REG in crti.S.
> > [AARCH64] Use PTR_REG/PTR_SIZE/PTR_SIZE_LOG in dl-tlsesc.S
> > [AARCH64] Use PTR_* macros in dl-trampoline.S
> > [AARCH64] Use PTR_* in start.S
> > [AARCH64] Use PTR_REG in getcontext.S.
> > [AARCH64] Detect ILP32 in configure scripts.
> > [AARCH64] Syscalls for ILP32 are passed always via 64bit values.
> > [AARCH64] Add ILP32 support to elf_machine_load_address.
> > [AARCH64] Set up wordsize for ILP32.
> > [AARCH64] Add ILP32 to makefiles
> > [AARCH64] Add support to ldconfig for ILP32 and libilp32
> > [AARCH64] Add ILP32 ld.so to the known interpreter names.
> > [AARCH64] Add ldd-rewrite.sed so that ilp32 ld.so can be found
> > [AARCH64] Add kernel_sigaction.h for AARCH64 ILP32
> > [AARCH64] Add typesizes.h for ILP32
> > [AARCH64] Make lp64 and ilp32 directories.
> > Add support for AT_ARM64_MIDR.
> > [AARCH64] Fix ILP32 warning
> > [AARCH64] Change type of __align to long long
> > Fix PTRDIFF_MIN/PTRDIFF_MIN and PTRDIFF_MIN for ILP32.
> >
> >Yury Norov (3):
> > [AARCH64] ILP32: introduce syscalls that pass off_t
> > [AARCH64] ILP32: support stat syscall family
> > [AARCH64] delouse input arguments in system functions
> >
> > elf/cache.c | 2 +
> > elf/dl-sysdep.c | 1 +
> > elf/elf.h | 3 +
> > sysdeps/aarch64/Implies | 6 -
> > sysdeps/aarch64/__longjmp.S | 6 +-
> > sysdeps/aarch64/bits/wordsize.h | 28 +++
> > sysdeps/aarch64/configure | 15 +-
> > sysdeps/aarch64/configure.ac | 11 +-
> > sysdeps/aarch64/crti.S | 3 +-
> > sysdeps/aarch64/dl-irel.h | 3 +-
> > sysdeps/aarch64/dl-machine.h | 199 ++++++++++++---------
> > sysdeps/aarch64/dl-tlsdesc.S | 42 +++--
> > sysdeps/aarch64/dl-trampoline.S | 18 +-
> > sysdeps/aarch64/ilp32/Implies | 6 +
> > sysdeps/aarch64/jmpbuf-unwind.h | 2 +-
> > sysdeps/aarch64/lp64/Implies | 7 +
> > sysdeps/aarch64/memcmp.S | 3 +
> > sysdeps/aarch64/memcpy.S | 4 +-
> > sysdeps/aarch64/memmove.S | 3 +
> > sysdeps/aarch64/memset.S | 3 +-
> > sysdeps/aarch64/nptl/bits/semaphore.h | 2 +-
> > sysdeps/aarch64/preconfigure | 11 +-
> > sysdeps/aarch64/setjmp.S | 5 +-
> > sysdeps/aarch64/start.S | 20 ++-
> > sysdeps/aarch64/strchr.S | 1 +
> > sysdeps/aarch64/strchrnul.S | 1 +
> > sysdeps/aarch64/strcmp.S | 2 +
> > sysdeps/aarch64/strcpy.S | 2 +
> > sysdeps/aarch64/strlen.S | 2 +
> > sysdeps/aarch64/strncmp.S | 3 +
> > sysdeps/aarch64/strnlen.S | 3 +
> > sysdeps/aarch64/strrchr.S | 1 +
> > sysdeps/aarch64/sysdep.h | 39 +++-
> > sysdeps/generic/ldconfig.h | 1 +
> > sysdeps/generic/stdint.h | 9 +-
> > sysdeps/unix/sysv/linux/aarch64/Implies | 2 -
> > sysdeps/unix/sysv/linux/aarch64/Makefile | 16 +-
> > sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h | 6 +-
> > sysdeps/unix/sysv/linux/aarch64/bits/stat.h | 195 ++++++++++++++++++++
> > sysdeps/unix/sysv/linux/aarch64/bits/statfs.h | 72 ++++++++
> > sysdeps/unix/sysv/linux/aarch64/bits/typesizes.h | 91 ++++++++++
> > sysdeps/unix/sysv/linux/aarch64/clone.S | 7 +
> > sysdeps/unix/sysv/linux/aarch64/configure | 24 ++-
> > sysdeps/unix/sysv/linux/aarch64/configure.ac | 11 +-
> > sysdeps/unix/sysv/linux/aarch64/dl-auxv.h | 25 +++
> > sysdeps/unix/sysv/linux/aarch64/dl-cache.h | 13 +-
> > sysdeps/unix/sysv/linux/aarch64/dl-sysdep.c | 5 +
> > sysdeps/unix/sysv/linux/aarch64/getcontext.S | 3 +-
> > sysdeps/unix/sysv/linux/aarch64/ilp32/Implies | 4 +
> > .../unix/sysv/linux/aarch64/ilp32/dl-fxstatat64.c | 6 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/dl-xstat64.c | 6 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/fallocate.c | 31 ++++
> > .../unix/sysv/linux/aarch64/ilp32/fallocate64.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/fstatfs.c | 29 +++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/fstatfs64.c | 72 ++++++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/ftruncate.c | 1 +
> > .../unix/sysv/linux/aarch64/ilp32/ftruncate64.c | 4 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/fxstat.c | 51 ++++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/fxstat64.c | 54 ++++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/fxstatat.c | 48 +++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/fxstatat64.c | 52 ++++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/getdents.c | 78 ++++++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/getdents64.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/llseek.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/lseek.c | 36 ++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/lseek64.c | 0
> > sysdeps/unix/sysv/linux/aarch64/ilp32/lxstat.c | 47 +++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/mmap.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/mmap64.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/msgctl.c | 32 ++++
> > .../unix/sysv/linux/aarch64/ilp32/posix_fadvise.c | 1 +
> > .../sysv/linux/aarch64/ilp32/posix_fadvise64.c | 2 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/pread.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/pread64.c | 5 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/preadv.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/preadv64.c | 5 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/pwrite.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/pwrite64.c | 5 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/pwritev.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/pwritev64.c | 5 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/readahead.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/readdir64.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/semctl.c | 53 ++++++
> > .../unix/sysv/linux/aarch64/ilp32/shlib-versions | 7 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/shmctl.c | 32 ++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/statfs.c | 30 ++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/statfs64.c | 29 +++
> > .../unix/sysv/linux/aarch64/ilp32/syscalls.list | 0
> > sysdeps/unix/sysv/linux/aarch64/ilp32/truncate.c | 1 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/truncate64.c | 4 +
> > sysdeps/unix/sysv/linux/aarch64/ilp32/xstat.c | 47 +++++
> > sysdeps/unix/sysv/linux/aarch64/ilp32/xstat64.c | 47 +++++
> > sysdeps/unix/sysv/linux/aarch64/ioctl.S | 31 ----
> > sysdeps/unix/sysv/linux/aarch64/kernel_sigaction.h | 12 ++
> > sysdeps/unix/sysv/linux/aarch64/ldconfig.h | 2 +
> > sysdeps/unix/sysv/linux/aarch64/ldd-rewrite.sed | 1 +
> > sysdeps/unix/sysv/linux/aarch64/lp64/Implies | 4 +
> > sysdeps/unix/sysv/linux/aarch64/lp64/ioctl.S | 31 ++++
> > sysdeps/unix/sysv/linux/aarch64/lp64/mmap.c | 34 ++++
> > .../unix/sysv/linux/aarch64/lp64/shlib-versions | 7 +
> > sysdeps/unix/sysv/linux/aarch64/mmap.c | 34 ----
> > sysdeps/unix/sysv/linux/aarch64/setcontext.S | 1 +
> > sysdeps/unix/sysv/linux/aarch64/shlib-versions | 7 -
> > sysdeps/unix/sysv/linux/aarch64/sigaction.c | 10 +-
> > sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h | 2 +-
> > sysdeps/unix/sysv/linux/aarch64/swapcontext.S | 1 +
> > sysdeps/unix/sysv/linux/aarch64/sysdep.h | 56 +++---
> > sysdeps/unix/sysv/linux/arm/readelflib.c | 4 +-
> > sysdeps/unix/sysv/linux/generic/brk.c | 2 +-
> > sysdeps/unix/sysv/linux/sysdep-vdso.h | 4 +-
> > 110 files changed, 1744 insertions(+), 271 deletions(-)
> > delete mode 100644 sysdeps/aarch64/Implies
> > create mode 100644 sysdeps/aarch64/bits/wordsize.h
> > mode change 100644 => 100755 sysdeps/aarch64/configure
> > create mode 100644 sysdeps/aarch64/ilp32/Implies
> > create mode 100644 sysdeps/aarch64/lp64/Implies
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/bits/stat.h
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/bits/statfs.h
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/bits/typesizes.h
> > mode change 100644 => 100755 sysdeps/unix/sysv/linux/aarch64/configure
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/dl-auxv.h
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/dl-sysdep.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/Implies
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/dl-fxstatat64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/dl-xstat64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/fallocate.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/fallocate64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/fstatfs.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/fstatfs64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/ftruncate.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/ftruncate64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/fxstat.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/fxstat64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/fxstatat.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/fxstatat64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/getdents.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/getdents64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/llseek.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/lseek.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/lseek64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/lxstat.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/mmap.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/mmap64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/msgctl.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/posix_fadvise.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/posix_fadvise64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/pread.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/pread64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/preadv.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/preadv64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/pwrite.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/pwrite64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/pwritev.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/pwritev64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/readahead.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/readdir64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/semctl.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/shlib-versions
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/shmctl.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/statfs.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/statfs64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/syscalls.list
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/truncate.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/truncate64.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/xstat.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/xstat64.c
> > delete mode 100644 sysdeps/unix/sysv/linux/aarch64/ioctl.S
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/kernel_sigaction.h
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/ldd-rewrite.sed
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/lp64/Implies
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/lp64/ioctl.S
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/lp64/mmap.c
> > create mode 100644 sysdeps/unix/sysv/linux/aarch64/lp64/shlib-versions
> > delete mode 100644 sysdeps/unix/sysv/linux/aarch64/mmap.c
> > delete mode 100644 sysdeps/unix/sysv/linux/aarch64/shlib-versions
> >