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authorAli Saidi <Ali.Saidi@ARM.com>2010-06-02 12:58:13 -0500
committerAli Saidi <Ali.Saidi@ARM.com>2010-06-02 12:58:13 -0500
commit5e6d28996ae80f2bd3afeadbb3454a9d1958e3a2 (patch)
tree8bf8082c864205dbd4b5f997161c42d1423bd413 /src
parentaec73ba6af62c8da66fb40e015671541708c1723 (diff)
downloadgem5-5e6d28996ae80f2bd3afeadbb3454a9d1958e3a2.tar.xz
ARM: Move PC mode bits around so they can be used for exectrace
Diffstat (limited to 'src')
-rw-r--r--src/arch/arm/isa_traits.hh7
-rw-r--r--src/arch/arm/miscregs.hh7
-rw-r--r--src/cpu/exetrace.cc15
3 files changed, 17 insertions, 12 deletions
diff --git a/src/arch/arm/isa_traits.hh b/src/arch/arm/isa_traits.hh
index 00c4c2932..4cffe3bec 100644
--- a/src/arch/arm/isa_traits.hh
+++ b/src/arch/arm/isa_traits.hh
@@ -121,6 +121,13 @@ namespace ArmISA
// Memory accesses cannot be unaligned
const bool HasUnalignedMemAcc = false;
+
+ // These otherwise unused bits of the PC are used to select a mode
+ // like the J and T bits of the CPSR.
+ static const Addr PcJBitShift = 33;
+ static const Addr PcTBitShift = 34;
+ static const Addr PcModeMask = (ULL(1) << PcJBitShift) |
+ (ULL(1) << PcTBitShift);
};
using namespace ArmISA;
diff --git a/src/arch/arm/miscregs.hh b/src/arch/arm/miscregs.hh
index ad4f91908..e3e2ca2c2 100644
--- a/src/arch/arm/miscregs.hh
+++ b/src/arch/arm/miscregs.hh
@@ -201,13 +201,6 @@ namespace ArmISA
// integer register to allow renaming.
static const uint32_t CondCodesMask = 0xF80F0000;
- // These otherwise unused bits of the PC are used to select a mode
- // like the J and T bits of the CPSR.
- static const Addr PcJBitShift = 33;
- static const Addr PcTBitShift = 34;
- static const Addr PcModeMask = (ULL(1) << PcJBitShift) |
- (ULL(1) << PcTBitShift);
-
BitUnion32(SCTLR)
Bitfield<30> te; // Thumb Exception Enable
Bitfield<29> afe; // Access flag enable
diff --git a/src/cpu/exetrace.cc b/src/cpu/exetrace.cc
index 07be700bb..28c7861ef 100644
--- a/src/cpu/exetrace.cc
+++ b/src/cpu/exetrace.cc
@@ -33,6 +33,7 @@
#include <iomanip>
+#include "arch/isa_traits.hh"
#include "base/loader/symtab.hh"
#include "cpu/base.hh"
#include "cpu/exetrace.hh"
@@ -70,18 +71,22 @@ Trace::ExeTracerRecord::traceInst(StaticInstPtr inst, bool ran)
std::string sym_str;
Addr sym_addr;
+ Addr cur_pc = PC;
+#if THE_ISA == ARM_ISA
+ cur_pc &= ~PcModeMask;
+#endif
if (debugSymbolTable
&& IsOn(ExecSymbol)
#if FULL_SYSTEM
&& !inUserMode(thread)
#endif
- && debugSymbolTable->findNearestSymbol(PC, sym_str, sym_addr)) {
- if (PC != sym_addr)
- sym_str += csprintf("+%d", PC - sym_addr);
+ && debugSymbolTable->findNearestSymbol(cur_pc, sym_str, sym_addr)) {
+ if (cur_pc != sym_addr)
+ sym_str += csprintf("+%d",cur_pc - sym_addr);
outs << "@" << sym_str;
}
else {
- outs << "0x" << hex << PC;
+ outs << "0x" << hex << cur_pc;
}
if (inst->isMicroop()) {
@@ -97,7 +102,7 @@ Trace::ExeTracerRecord::traceInst(StaticInstPtr inst, bool ran)
//
outs << setw(26) << left;
- outs << inst->disassemble(PC, debugSymbolTable);
+ outs << inst->disassemble(cur_pc, debugSymbolTable);
if (ran) {
outs << " : ";