19 Commits

Author SHA1 Message Date
Abhishek Aggarwal
b352a1c88f X86: Change FTAG register size in FXSAVE structure
Summary:
 - Changed from 16 bits to 8 bits for Intel Architecture
    -- FXSAVE structure now conforms with the layout of FXSAVE
       area specified by IA Architecture Software Developer Manual

 - Modified Linux and FreeBSD specific files to support this change
    -- MacOSX already uses 8 bits for ftag register

 - Modified TestRegisters.py and a.cpp:
    -- Change allows 8 bit comparison of ftag values

    -- Change resolves Bug 24733:
       Removed XFAIL for Clang as the test works and passes for
       Clang compiler as well

    -- Change provides a Generic/Better way of testing Bug 24457
       and Bug 25050 by using 'int3' inline assembly in inferior

Signed-off-by: Abhishek Aggarwal <abhishek.a.aggarwal@intel.com>

Reviewers: ovyalov, jingham, clayborg

Subscribers: tfiala, emaste

Differential Revision: http://reviews.llvm.org/D13587

llvm-svn: 250022
2015-10-12 09:57:00 +00:00
Abhishek Aggarwal
7f658edd61 Bug 24457 - X87 FPU Special Purpose Registers
Summary:
  - For 'register read --all' command on x86_64-Linux Platform:

      -- Provide correct values of X87 FPU Special Purpose Registers
      -- Both 32-bit & 64-bit inferiors give correct values on this
         Platform

  - Added a Test Vector:
      -- To verify the expected behaviour of the command

Signed-off-by: Abhishek Aggarwal <abhishek.a.aggarwal@intel.com>

Reviewers: ashok.thirumurthi, granata.enrico, tfiala, clayborg

Differential Revision: http://reviews.llvm.org/D12592

llvm-svn: 246955
2015-09-07 07:40:16 +00:00
Ravitheja Addepally
72ab9e5c6c Removing redundant check from r244875
llvm-svn: 244886
2015-08-13 11:53:23 +00:00
Tamas Berghammer
64ad85cef2 Fix Linux build after r244875
llvm-svn: 244877
2015-08-13 09:19:27 +00:00
Ravitheja Addepally
4778e410d0 Set orig_eax to -1 for Linux x86 platforms
Summary:
For Linux x86 based environments the orig_eax/orig_rax
register should be set to -1 to prevent the instruction pointer
to be decremented, which was the cause for the SIGILL exception.

Fix for Bug 23659

Reviewers: zturner, ashok.thirumurthi, mikesart, jingham, clayborg

Subscribers: clayborg, labath

Differential Revision: http://reviews.llvm.org/D11411

llvm-svn: 244875
2015-08-13 09:05:11 +00:00
Tamas Berghammer
40caea63c4 Fix read only watchpoints on x86_64
On x86/x86_64 read only watchpoints aren't supported. Fall back
to read/write watchpoints in that case.

Note: Logic should be added to ignore the watchpoint hit when
occurred because of a write.

llvm-svn: 244742
2015-08-12 12:22:42 +00:00
Omair Javaid
cf8eb9da4d Fix LLGS to enable read type watchpoints
http://reviews.llvm.org/D11902

llvm-svn: 244741
2015-08-12 11:30:21 +00:00
Tamas Berghammer
068f8a7e2d Move register reading form NativeProcessLinux to NativeRegisterContextLinux*
This change reorganize the register read/write code inside lldb-server on Linux
with moving the architecture independent code into a new class called
NativeRegisterContextLinux and all of the architecture dependent code into the
appropriate NativeRegisterContextLinux_* class. As part of it the compilation of
the architecture specific register contexts are only compiled on the specific
architecture because they can't be used in other cases.

The purpose of this change is to remove a lot of duplicated code from the different
register contexts and to remove the architecture dependent codes from the global
NativeProcessLinux class.

Differential revision: http://reviews.llvm.org/D9935

llvm-svn: 238196
2015-05-26 11:58:52 +00:00
Omair Javaid
ea8c25a802 This patch adds support for setting/clearing hardware watchpoints and breakpoints on AArch64 (Arm v8) 64-bit hardware.
http://reviews.llvm.org/D9706

llvm-svn: 237419
2015-05-15 06:29:58 +00:00
Tamas Berghammer
db264a6d09 Move several plugin to its own namespace
Affected paths:
* Plugins/Platform/Android/*
* Plugins/Platform/Linux/*
* Plugins/Platform/gdb-server/*
* Plugins/Process/Linux/*
* Plugins/Process/gdb-remote/*

Differential revision: http://reviews.llvm.org/D8654

llvm-svn: 233679
2015-03-31 09:52:22 +00:00
Chaoren Lin
c16f5dca27 Report watchpoint hits during single stepping.
Summary:
Reorganized NativeProcessLinux::MonitorSIGTRAP to check for watchpoint hits on
TRAP_TRACE.

Added test for stepping over watchpoints.

https://llvm.org/bugs/show_bug.cgi?id=22814

Reviewers: ovyalov, tberghammer, vharron, clayborg

Subscribers: jingham, labath, lldb-commits

Differential Revision: http://reviews.llvm.org/D8404

llvm-svn: 232784
2015-03-19 23:28:10 +00:00
Tamas Berghammer
8fa23b8ebf Report the actual user register count from NativeRegisterContextLinux_x86_64
Thic change have effect wehn the AVX registers aren't available with
reporting the count of user registers without them.

Differential revision: http://reviews.llvm.org/D8111

llvm-svn: 231638
2015-03-09 10:48:23 +00:00
Chaoren Lin
6a504f6ea8 Watchpoint debug registers should work in i386 as well.
llvm-svn: 229504
2015-02-17 15:41:26 +00:00
Chaoren Lin
bc78f1696c Test commit.
Removed trailing whitespace.

From: Vince Harron <vharron@google.com>
llvm-svn: 228115
2015-02-04 05:40:07 +00:00
Chaoren Lin
18fe6404f9 Implement setting and clearing watchpoints.
llvm-svn: 227930
2015-02-03 01:51:47 +00:00
Chaoren Lin
2fe1d0abc2 Moving header files from source/Host/common to proper location.
llvm-svn: 227929
2015-02-03 01:51:38 +00:00
Chaoren Lin
97ccc294da Refactor ptrace commands in NativeProcessLinux to use Error as result return type.
llvm-svn: 227923
2015-02-03 01:51:12 +00:00
Zachary Turner
7f013bcd60 Rename lldb registers to contain lldb_ prefix.
LLDB supports many different register numbering schemes, and these
are typically prefixed with an indicator that lets the user know
what numbering scheme is used.  The gcc numbering scheme is
prefixed with gcc, and there are similar ones for dwarf, gdb,
and gcc_dwarf.

LLDB also contains its own internal numbering scheme, but the enum
for LLDB's numbering scheme was prefixed differently.  This patch
changes the names of these enums to use the same naming scheme for
the enum values as the rest of the register kinds by removing gpr_
and fpu_ prefixes, and instead using lldb_ prefixes for all enum
values.

Differential Revision: http://reviews.llvm.org/D6351
Reviewed by: Greg Clayton

llvm-svn: 222495
2014-11-21 02:00:21 +00:00
Todd Fiala
2850b1be2e Fixup Windows build breaks for the llgs upstream.
Also moves NativeRegisterContextLinux* files into the Linux directory.
These, like NativeProcessLinux, should only be built on Linux or a cross
compiler with proper headers.

llvm-svn: 212074
2014-06-30 23:51:35 +00:00