[RFC2 PATCH 00/23] ARM64: support ILP32

From: Yury Norov
Date: Tue Jun 28 2016 - 12:40:03 EST

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This series enables aarch64 port with ilp32 mode.

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
- struct utmp, utmpx layouts are the same.

v1: https://sourceware.org/ml/libc-alpha/2016-06/msg00730.html
v2:
- rebased on master;
- dropped unneeded/unrelated patches;
- pread family platform implementation removed;
- addressed v1 comments (I'm really sorry if I missed something,
there are a lot of them, and I am really thankfull for detailed review);

Tested with LTP. Regressions are like this:
abort01 FAIL 2
kill11 FAIL 2
mmap16 FAIL 6
open12 FAIL 2
rename11 FAIL 2
rmdir02 FAIL 2
umount2_01 FAIL 2
umount2_02 FAIL 2
umount2_03 FAIL 2
utime06 FAIL 2

It's better than v1, and there are ~5 additional regressions comparing to
aarch64, all are related to filesystem.

Andrew Pinski (17):
[AARCH64] define word size for lp64 and ilp32
[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] Add ILP32 support to elf_machine_load_address.
[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] Make lp64 and ilp32 directories.
[AARCH64] Fix ILP32 warning

Yury Norov (6):
[AARCH64] ILP32: introduce syscalls that pass off_t
[AARCH64] ILP32: support stat syscall family
[AARCH64] delouse input arguments in system functions
[AARCH64] Make __SIZEOF_SEM_T 16 for ILP32
off_t: fix register pair calculation for 64-bit case
[AARCH64] Take utmp{,x}.h from s390 port

elf/cache.c | 3 +
sysdeps/aarch64/Implies | 6 -
sysdeps/aarch64/__longjmp.S | 6 +-
sysdeps/aarch64/bits/wordsize.h | 25 +++
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 | 56 +++---
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 | 8 +
sysdeps/aarch64/memset.S | 3 +
sysdeps/aarch64/nptl/bits/semaphore.h | 4 +
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 | 64 +++++++
sysdeps/unix/sysv/linux/aarch64/bits/typesizes.h | 86 +++++++++
sysdeps/unix/sysv/linux/aarch64/bits/utmp.h | 1 +
sysdeps/unix/sysv/linux/aarch64/bits/utmpx.h | 1 +
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-cache.h | 13 +-
sysdeps/unix/sysv/linux/aarch64/getcontext.S | 3 +-
sysdeps/unix/sysv/linux/aarch64/ilp32/Implies | 4 +
.../unix/sysv/linux/aarch64/ilp32/dl-fxstatat64.c | 7 +
sysdeps/unix/sysv/linux/aarch64/ilp32/dl-xstat64.c | 6 +
sysdeps/unix/sysv/linux/aarch64/ilp32/fstatfs.c | 29 +++
sysdeps/unix/sysv/linux/aarch64/ilp32/fstatfs64.c | 29 +++
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 | 44 +++++
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 | 77 ++++++++
sysdeps/unix/sysv/linux/aarch64/ilp32/getdents64.c | 1 +
sysdeps/unix/sysv/linux/aarch64/ilp32/lseek.c | 36 ++++
sysdeps/unix/sysv/linux/aarch64/ilp32/lxstat.c | 47 +++++
sysdeps/unix/sysv/linux/aarch64/ilp32/lxstat64.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/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-features.h | 27 +++
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/sigcontextinfo.h | 2 +-
sysdeps/unix/sysv/linux/aarch64/swapcontext.S | 1 +
sysdeps/unix/sysv/linux/aarch64/sysdep.h | 8 +-
sysdeps/unix/sysv/linux/arm/readelflib.c | 4 +-
sysdeps/unix/sysv/linux/fallocate.c | 4 +
sysdeps/unix/sysv/linux/fallocate64.c | 4 +
sysdeps/unix/sysv/linux/generic/brk.c | 2 +-
sysdeps/unix/sysv/linux/posix_fadvise.c | 4 +
sysdeps/unix/sysv/linux/posix_fadvise64.c | 4 +
sysdeps/unix/sysv/linux/posix_fallocate.c | 4 +
sysdeps/unix/sysv/linux/posix_fallocate64.c | 4 +
100 files changed, 1649 insertions(+), 250 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
create mode 100644 sysdeps/unix/sysv/linux/aarch64/bits/utmp.h
create mode 100644 sysdeps/unix/sysv/linux/aarch64/bits/utmpx.h
mode change 100644 => 100755 sysdeps/unix/sysv/linux/aarch64/configure
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/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/lseek.c
create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/lxstat.c
create mode 100644 sysdeps/unix/sysv/linux/aarch64/ilp32/lxstat64.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/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-features.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

--
2.7.4

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