From: "H.J. Lu via Libc-alpha" <libc-alpha@sourceware.org>
To: libc-alpha@sourceware.org
Cc: Florian Weimer <fweimer@redhat.com>,
Szabolcs Nagy <szabolcs.nagy@arm.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
Joseph Myers <joseph@codesourcery.com>,
Vedvyas Shanbhogue <vedvyas.shanbhogue@intel.com>
Subject: RFC [PATCH v4 0/2] <sys/tagged-address.h>: An API for tagged address
Date: Mon, 19 Apr 2021 19:18:17 -0700 [thread overview]
Message-ID: <20210420021819.765779-1-hjl.tools@gmail.com> (raw)
Changes in v4:
1. Document that the zero return value from get_tagged_address_bits
indicates that tag bits are not the highest bits in address.
2. Document that the zero value of TAGGED_ADDRESS_MASK indicates the
invalid address mask.
3. Add <bits/tagged-address-mask.h> to provide TAGGED_ADDRESS_MASK.
4. Add C++ support to TAGGED_ADDRESS_MASK.
Changes in v3:
1. set_tagged_address_mask can be only called once before main.
2. Add more tests.
---
By default, the number of the address bits used in address translation
is the number of address bits. But it can be changed by ARM Top-byte
Ignore (TBI) or Intel Linear Address Masking (LAM).
<sys/tagged-address.h> provides an API for tagged address manipulation.
H.J. Lu (2):
<sys/tagged-address.h>: An API for tagged address
<sys/tagged-address.h>: Update libc.abilist files
NEWS | 2 +
bits/tagged-address-mask.h | 47 +++++++++++++++
bits/tagged-address.h | 28 +++++++++
csu/libc-start.c | 3 +
elf/dl-support.c | 5 ++
include/sys/tagged-address.h | 9 +++
manual/Makefile | 3 +-
manual/ctype.texi | 2 +-
manual/memory.texi | 2 +-
manual/tagged-address.texi | 59 +++++++++++++++++++
misc/Makefile | 34 +++++++++--
misc/Versions | 7 +++
misc/set-tagged-address-mask.c | 41 +++++++++++++
misc/sys/tagged-address.h | 45 ++++++++++++++
misc/tagged-address.c | 55 +++++++++++++++++
misc/tst-tagged-address-1-static.c | 1 +
misc/tst-tagged-address-1.c | 53 +++++++++++++++++
misc/tst-tagged-address-2-static.c | 1 +
misc/tst-tagged-address-2.c | 44 ++++++++++++++
misc/tst-tagged-address-3-static.c | 1 +
misc/tst-tagged-address-3.c | 48 +++++++++++++++
misc/tst-tagged-address-4-static.c | 1 +
misc/tst-tagged-address-4.c | 35 +++++++++++
misc/tst-tagged-address-5.c | 25 ++++++++
misc/tst-tagged-address-6.c | 34 +++++++++++
misc/tst-tagged-address-7.c | 40 +++++++++++++
misc/tst-tagged-address-mod-5.c | 45 ++++++++++++++
misc/tst-tagged-address-mod-6.c | 34 +++++++++++
misc/tst-tagged-address-mod-7.c | 34 +++++++++++
sysdeps/generic/inline-tagged-address.h | 43 ++++++++++++++
sysdeps/generic/ldsodefs.h | 4 ++
sysdeps/mach/hurd/i386/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/aarch64/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/alpha/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/arc/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/arm/be/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/arm/le/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/csky/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/hppa/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/i386/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/ia64/libc.abilist | 5 ++
.../sysv/linux/m68k/coldfire/libc.abilist | 5 ++
.../unix/sysv/linux/m68k/m680x0/libc.abilist | 5 ++
.../sysv/linux/microblaze/be/libc.abilist | 5 ++
.../sysv/linux/microblaze/le/libc.abilist | 5 ++
.../sysv/linux/mips/mips32/fpu/libc.abilist | 5 ++
.../sysv/linux/mips/mips32/nofpu/libc.abilist | 5 ++
.../sysv/linux/mips/mips64/n32/libc.abilist | 5 ++
.../sysv/linux/mips/mips64/n64/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/nios2/libc.abilist | 5 ++
.../linux/powerpc/powerpc32/fpu/libc.abilist | 5 ++
.../powerpc/powerpc32/nofpu/libc.abilist | 5 ++
.../linux/powerpc/powerpc64/be/libc.abilist | 5 ++
.../linux/powerpc/powerpc64/le/libc.abilist | 5 ++
.../unix/sysv/linux/riscv/rv32/libc.abilist | 5 ++
.../unix/sysv/linux/riscv/rv64/libc.abilist | 5 ++
.../unix/sysv/linux/s390/s390-32/libc.abilist | 5 ++
.../unix/sysv/linux/s390/s390-64/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/sh/be/libc.abilist | 5 ++
sysdeps/unix/sysv/linux/sh/le/libc.abilist | 5 ++
.../sysv/linux/sparc/sparc32/libc.abilist | 5 ++
.../sysv/linux/sparc/sparc64/libc.abilist | 5 ++
.../unix/sysv/linux/x86_64/64/libc.abilist | 5 ++
.../unix/sysv/linux/x86_64/x32/libc.abilist | 5 ++
64 files changed, 942 insertions(+), 8 deletions(-)
create mode 100644 bits/tagged-address-mask.h
create mode 100644 bits/tagged-address.h
create mode 100644 include/sys/tagged-address.h
create mode 100644 manual/tagged-address.texi
create mode 100644 misc/set-tagged-address-mask.c
create mode 100644 misc/sys/tagged-address.h
create mode 100644 misc/tagged-address.c
create mode 100644 misc/tst-tagged-address-1-static.c
create mode 100644 misc/tst-tagged-address-1.c
create mode 100644 misc/tst-tagged-address-2-static.c
create mode 100644 misc/tst-tagged-address-2.c
create mode 100644 misc/tst-tagged-address-3-static.c
create mode 100644 misc/tst-tagged-address-3.c
create mode 100644 misc/tst-tagged-address-4-static.c
create mode 100644 misc/tst-tagged-address-4.c
create mode 100644 misc/tst-tagged-address-5.c
create mode 100644 misc/tst-tagged-address-6.c
create mode 100644 misc/tst-tagged-address-7.c
create mode 100644 misc/tst-tagged-address-mod-5.c
create mode 100644 misc/tst-tagged-address-mod-6.c
create mode 100644 misc/tst-tagged-address-mod-7.c
create mode 100644 sysdeps/generic/inline-tagged-address.h
--
2.30.2
next reply other threads:[~2021-04-20 2:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-20 2:18 H.J. Lu via Libc-alpha [this message]
2021-04-20 2:18 ` [PATCH v4 1/2] <sys/tagged-address.h>: An API for tagged address H.J. Lu via Libc-alpha
2021-04-21 6:36 ` Florian Weimer via Libc-alpha
2021-04-21 23:21 ` H.J. Lu via Libc-alpha
2021-04-22 9:43 ` Szabolcs Nagy via Libc-alpha
2021-04-20 2:18 ` [PATCH v4 2/2] <sys/tagged-address.h>: Update libc.abilist files H.J. Lu via Libc-alpha
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