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[PATCH V6 0/8] Intel(R) MPX register support
- From: Walfred Tedeschi <walfred dot tedeschi at intel dot com>
- To: tromey at redhat dot com, mark dot kettenis at xs4all dot nl
- Cc: gdb-patches at sourceware dot org, Walfred Tedeschi <walfred dot tedeschi at intel dot com>
- Date: Tue, 24 Sep 2013 13:08:02 +0200
- Subject: [PATCH V6 0/8] Intel(R) MPX register support
- Authentication-results: sourceware.org; auth=none
This patch series adds support for the Intel(R) Memory Protection
Extension MPX registers. Native and remote debugging are covered
by this patch.
New registers are bound registers known as bnd register (bnd0...bnd3),
a configuration register bndcfgu and a status register bndstatus. Bound
registers store pointer bounds, i.e. bound limits of a pointer. Bndstatus
and bndcfgu store information of the current status and configuration
of other MPX counterparts. For more information [1][2].
Design notes:
Bound register are represented in hardware as two fields of 64bits each,
both in 64bit and 32bit mode. The fields are lower bound and upper bound.
Upper bound value is a complement of one value of the upper limiting
address. To take this into account the bnd0...bnd3 are created as pseudo
registers while the hardware values are stored on bnd0raw...bnd3raw.
Ok to commit?
References:
[1] Intel(R) Architecture Instruction Set Extensions Programming Reference.
http://download-software.intel.com/sites/default/files/319433-015.pdf.
[2] http://software.intel.com/en-us/intel-isa-extensions.
Changes between V5 and V6:
* Removed some fields from gdbarch_tdep and added them as macros,
as indicated by Mark Kettenis.
* Fixed a comparison for XCR0 on gdbserver implementation.
Changes between V4 and V5:
* Improved text for MPX feature on gdb.texinfo following Eli indications.
* Fixed one table that still had ORIG_EAX and ORIG_RAX in the middle.
Changes between V3 and V4:
* Added NEWS entry for MPX.
* Improved text for MPX feature on gdb.texinfo.
* Fixed several ChangeLogs.
Changes between V2 and V3:
* Small changes on changelogs: "Add MPX support for i386" and "Add
support for MPX amd64".
* Add MPX feature documentation as extra patch.
Changes between V1 and V2:
* Folowing the Mark Kettenis feedback: Orig_rax and orig_eax are left as the
last register on the internal list.
* Ported gcc file used for cpuid and corrected overlooked condition to
detect MPX hardware while performing MPX related tests.
Walfred Tedeschi (8):
Fix conditions in creating a bitfield.
Add MPX registers XML files.
Add MPX support for i386
MPX for amd64
Add MPX support to gdbserver.
Add pretty-printer for MPX bnd registers.
Add MPX registers tests.
Add MPX feature description to GDB manual.
gdb/NEWS | 2 +
gdb/amd64-linux-nat.c | 43 +++--
gdb/amd64-linux-tdep.c | 14 +-
gdb/amd64-linux-tdep.h | 6 +-
gdb/amd64-tdep.c | 16 ++
gdb/amd64-tdep.h | 8 +-
gdb/common/i386-gcc-cpuid.h | 8 +-
gdb/common/i386-xstate.h | 21 ++-
gdb/data-directory/Makefile.in | 1 +
gdb/doc/gdb.texinfo | 25 +++
gdb/features/Makefile | 38 ++++-
gdb/features/i386/32bit-mpx.xml | 43 +++++
gdb/features/i386/64bit-mpx.xml | 43 +++++
gdb/features/i386/amd64-mpx-linux.c | 211 ++++++++++++++++++++++++
gdb/features/i386/amd64-mpx-linux.xml | 19 +++
gdb/features/i386/amd64-mpx.c | 206 +++++++++++++++++++++++
gdb/features/i386/amd64-mpx.xml | 17 ++
gdb/features/i386/i386-mpx-linux.c | 187 +++++++++++++++++++++
gdb/features/i386/i386-mpx-linux.xml | 19 +++
gdb/features/i386/i386-mpx.c | 182 +++++++++++++++++++++
gdb/features/i386/i386-mpx.xml | 17 ++
gdb/features/i386/x32-mpx-linux.c | 211 ++++++++++++++++++++++++
gdb/features/i386/x32-mpx-linux.xml | 19 +++
gdb/features/i386/x32-mpx.c | 206 +++++++++++++++++++++++
gdb/features/i386/x32-mpx.xml | 17 ++
gdb/gdbserver/Makefile.in | 15 ++
gdb/gdbserver/configure.srv | 20 +--
gdb/gdbserver/i387-fp.c | 90 +++++++++++
gdb/gdbserver/linux-x86-low.c | 87 ++++++++--
gdb/i386-linux-nat.c | 17 +-
gdb/i386-linux-tdep.c | 9 +-
gdb/i386-linux-tdep.h | 6 +-
gdb/i386-tdep.c | 216 ++++++++++++++++++++++++-
gdb/i386-tdep.h | 24 ++-
gdb/i387-tdep.c | 130 ++++++++++++++-
gdb/i387-tdep.h | 9 ++
gdb/python/lib/gdb/command/bound_registers.py | 45 ++++++
gdb/regformats/i386/amd64-mpx-linux.dat | 84 ++++++++++
gdb/regformats/i386/amd64-mpx.dat | 83 ++++++++++
gdb/regformats/i386/i386-mpx-linux.dat | 60 +++++++
gdb/regformats/i386/i386-mpx.dat | 59 +++++++
gdb/regformats/i386/x32-mpx-linux.dat | 84 ++++++++++
gdb/regformats/i386/x32-mpx.dat | 83 ++++++++++
gdb/target-descriptions.c | 2 +-
gdb/testsuite/gdb.arch/i386-mpx.c | 92 +++++++++++
gdb/testsuite/gdb.arch/i386-mpx.exp | 142 ++++++++++++++++
gdb/testsuite/gdb.python/py-pp-maint.exp | 8 +-
gdb/testsuite/gdb.xml/maint_print_struct.xml | 1 +
48 files changed, 2872 insertions(+), 73 deletions(-)
create mode 100644 gdb/features/i386/32bit-mpx.xml
create mode 100644 gdb/features/i386/64bit-mpx.xml
create mode 100644 gdb/features/i386/amd64-mpx-linux.c
create mode 100644 gdb/features/i386/amd64-mpx-linux.xml
create mode 100644 gdb/features/i386/amd64-mpx.c
create mode 100644 gdb/features/i386/amd64-mpx.xml
create mode 100644 gdb/features/i386/i386-mpx-linux.c
create mode 100644 gdb/features/i386/i386-mpx-linux.xml
create mode 100644 gdb/features/i386/i386-mpx.c
create mode 100644 gdb/features/i386/i386-mpx.xml
create mode 100644 gdb/features/i386/x32-mpx-linux.c
create mode 100644 gdb/features/i386/x32-mpx-linux.xml
create mode 100644 gdb/features/i386/x32-mpx.c
create mode 100644 gdb/features/i386/x32-mpx.xml
create mode 100644 gdb/python/lib/gdb/command/bound_registers.py
create mode 100644 gdb/regformats/i386/amd64-mpx-linux.dat
create mode 100644 gdb/regformats/i386/amd64-mpx.dat
create mode 100644 gdb/regformats/i386/i386-mpx-linux.dat
create mode 100644 gdb/regformats/i386/i386-mpx.dat
create mode 100644 gdb/regformats/i386/x32-mpx-linux.dat
create mode 100644 gdb/regformats/i386/x32-mpx.dat
create mode 100644 gdb/testsuite/gdb.arch/i386-mpx.c
create mode 100644 gdb/testsuite/gdb.arch/i386-mpx.exp
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1.7.10.4