summaryrefslogtreecommitdiff
path: root/src/arch/x86/nativetrace.cc
diff options
context:
space:
mode:
Diffstat (limited to 'src/arch/x86/nativetrace.cc')
-rw-r--r--src/arch/x86/nativetrace.cc198
1 files changed, 198 insertions, 0 deletions
diff --git a/src/arch/x86/nativetrace.cc b/src/arch/x86/nativetrace.cc
new file mode 100644
index 000000000..1ce7505ad
--- /dev/null
+++ b/src/arch/x86/nativetrace.cc
@@ -0,0 +1,198 @@
+/*
+ * Copyright (c) 2007-2009 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#include "arch/x86/isa_traits.hh"
+#include "arch/x86/floatregs.hh"
+#include "arch/x86/intregs.hh"
+#include "arch/x86/nativetrace.hh"
+#include "cpu/thread_context.hh"
+#include "params/X86NativeTrace.hh"
+
+namespace Trace {
+
+void
+X86NativeTrace::ThreadState::update(NativeTrace *parent)
+{
+ parent->read(this, sizeof(*this));
+ rax = X86ISA::gtoh(rax);
+ rcx = X86ISA::gtoh(rcx);
+ rdx = X86ISA::gtoh(rdx);
+ rbx = X86ISA::gtoh(rbx);
+ rsp = X86ISA::gtoh(rsp);
+ rbp = X86ISA::gtoh(rbp);
+ rsi = X86ISA::gtoh(rsi);
+ rdi = X86ISA::gtoh(rdi);
+ r8 = X86ISA::gtoh(r8);
+ r9 = X86ISA::gtoh(r9);
+ r10 = X86ISA::gtoh(r10);
+ r11 = X86ISA::gtoh(r11);
+ r12 = X86ISA::gtoh(r12);
+ r13 = X86ISA::gtoh(r13);
+ r14 = X86ISA::gtoh(r14);
+ r15 = X86ISA::gtoh(r15);
+ rip = X86ISA::gtoh(rip);
+ //This should be expanded if x87 registers are considered
+ for (int i = 0; i < 8; i++)
+ mmx[i] = X86ISA::gtoh(mmx[i]);
+ for (int i = 0; i < 32; i++)
+ xmm[i] = X86ISA::gtoh(xmm[i]);
+}
+
+void
+X86NativeTrace::ThreadState::update(ThreadContext *tc)
+{
+ rax = tc->readIntReg(X86ISA::INTREG_RAX);
+ rcx = tc->readIntReg(X86ISA::INTREG_RCX);
+ rdx = tc->readIntReg(X86ISA::INTREG_RDX);
+ rbx = tc->readIntReg(X86ISA::INTREG_RBX);
+ rsp = tc->readIntReg(X86ISA::INTREG_RSP);
+ rbp = tc->readIntReg(X86ISA::INTREG_RBP);
+ rsi = tc->readIntReg(X86ISA::INTREG_RSI);
+ rdi = tc->readIntReg(X86ISA::INTREG_RDI);
+ r8 = tc->readIntReg(X86ISA::INTREG_R8);
+ r9 = tc->readIntReg(X86ISA::INTREG_R9);
+ r10 = tc->readIntReg(X86ISA::INTREG_R10);
+ r11 = tc->readIntReg(X86ISA::INTREG_R11);
+ r12 = tc->readIntReg(X86ISA::INTREG_R12);
+ r13 = tc->readIntReg(X86ISA::INTREG_R13);
+ r14 = tc->readIntReg(X86ISA::INTREG_R14);
+ r15 = tc->readIntReg(X86ISA::INTREG_R15);
+ rip = tc->readNextPC();
+ //This should be expanded if x87 registers are considered
+ for (int i = 0; i < 8; i++)
+ mmx[i] = tc->readFloatRegBits(X86ISA::FLOATREG_MMX(i));
+ for (int i = 0; i < 32; i++)
+ xmm[i] = tc->readFloatRegBits(X86ISA::FLOATREG_XMM_BASE + i);
+}
+
+
+X86NativeTrace::X86NativeTrace(const Params *p)
+ : NativeTrace(p)
+{
+ checkRcx = true;
+ checkR11 = true;
+}
+
+bool
+X86NativeTrace::checkRcxReg(const char * name, uint64_t &mVal, uint64_t &nVal)
+{
+ if(!checkRcx)
+ checkRcx = (mVal != oldRcxVal || nVal != oldRealRcxVal);
+ if(checkRcx)
+ return checkReg(name, mVal, nVal);
+ return true;
+}
+
+bool
+X86NativeTrace::checkR11Reg(const char * name, uint64_t &mVal, uint64_t &nVal)
+{
+ if(!checkR11)
+ checkR11 = (mVal != oldR11Val || nVal != oldRealR11Val);
+ if(checkR11)
+ return checkReg(name, mVal, nVal);
+ return true;
+}
+
+bool
+X86NativeTrace::checkXMM(int num, uint64_t mXmmBuf[], uint64_t nXmmBuf[])
+{
+ if (mXmmBuf[num * 2] != nXmmBuf[num * 2] ||
+ mXmmBuf[num * 2 + 1] != nXmmBuf[num * 2 + 1]) {
+ DPRINTF(ExecRegDelta,
+ "Register xmm%d should be 0x%016x%016x but is 0x%016x%016x.\n",
+ num, nXmmBuf[num * 2 + 1], nXmmBuf[num * 2],
+ mXmmBuf[num * 2 + 1], mXmmBuf[num * 2]);
+ return false;
+ }
+ return true;
+}
+
+void
+X86NativeTrace::check(NativeTraceRecord *record)
+{
+ nState.update(this);
+ mState.update(record->getThread());
+
+ if(record->getStaticInst()->isSyscall())
+ {
+ checkRcx = false;
+ checkR11 = false;
+ oldRcxVal = mState.rcx;
+ oldRealRcxVal = nState.rcx;
+ oldR11Val = mState.r11;
+ oldRealR11Val = nState.r11;
+ }
+
+ checkReg("rax", mState.rax, nState.rax);
+ checkRcxReg("rcx", mState.rcx, nState.rcx);
+ checkReg("rdx", mState.rdx, nState.rdx);
+ checkReg("rbx", mState.rbx, nState.rbx);
+ checkReg("rsp", mState.rsp, nState.rsp);
+ checkReg("rbp", mState.rbp, nState.rbp);
+ checkReg("rsi", mState.rsi, nState.rsi);
+ checkReg("rdi", mState.rdi, nState.rdi);
+ checkReg("r8", mState.r8, nState.r8);
+ checkReg("r9", mState.r9, nState.r9);
+ checkReg("r10", mState.r10, nState.r10);
+ checkR11Reg("r11", mState.r11, nState.r11);
+ checkReg("r12", mState.r12, nState.r12);
+ checkReg("r13", mState.r13, nState.r13);
+ checkReg("r14", mState.r14, nState.r14);
+ checkReg("r15", mState.r15, nState.r15);
+ checkReg("rip", mState.rip, nState.rip);
+ checkXMM(0, mState.xmm, nState.xmm);
+ checkXMM(1, mState.xmm, nState.xmm);
+ checkXMM(2, mState.xmm, nState.xmm);
+ checkXMM(3, mState.xmm, nState.xmm);
+ checkXMM(4, mState.xmm, nState.xmm);
+ checkXMM(5, mState.xmm, nState.xmm);
+ checkXMM(6, mState.xmm, nState.xmm);
+ checkXMM(7, mState.xmm, nState.xmm);
+ checkXMM(8, mState.xmm, nState.xmm);
+ checkXMM(9, mState.xmm, nState.xmm);
+ checkXMM(10, mState.xmm, nState.xmm);
+ checkXMM(11, mState.xmm, nState.xmm);
+ checkXMM(12, mState.xmm, nState.xmm);
+ checkXMM(13, mState.xmm, nState.xmm);
+ checkXMM(14, mState.xmm, nState.xmm);
+ checkXMM(15, mState.xmm, nState.xmm);
+}
+
+} /* namespace Trace */
+
+////////////////////////////////////////////////////////////////////////
+//
+// ExeTracer Simulation Object
+//
+Trace::X86NativeTrace *
+X86NativeTraceParams::create()
+{
+ return new Trace::X86NativeTrace(this);
+};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 16:39:25 +0000