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arch: Virtualize printing a PCState.

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Introduce a virtual output() method which prints the current PCState to
the given output stream, and define an overload for << to use that
method. This will make it possible to print a PCState without knowing
what the actual type is.

Change-Id: I663619b168c0b2b90c148b45ae16d77f03934e5b
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/52039
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
This commit is contained in:
Gabe Black
2021-10-08 00:30:37 -07:00
parent e3a79d40f4
commit 8de2e2ee77
1 changed files with 35 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

70
src/arch/generic/pcstate.hh
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@@ -80,6 +80,8 @@ class PCStateBase : public Serializable
virtual PCStateBase *clone() const = 0;
virtual void output(std::ostream &os) const = 0;
virtual bool
equals(const PCStateBase &other) const
{
@@ -123,6 +125,13 @@ class PCStateBase : public Serializable
}
};
static inline std::ostream &
operator<<(std::ostream & os, const PCStateBase &pc)
{
pc.output(os);
return os;
}
static inline bool
operator==(const PCStateBase &a, const PCStateBase &b)
{
@@ -189,6 +198,12 @@ class PCStateCommon : public PCStateBase
npc(val);
}
void
output(std::ostream &os) const override
{
ccprintf(os, "(%#x=>%#x)", this->pc(), this->npc());
}
bool
equals(const PCStateBase &other) const override
{
@@ -268,14 +283,6 @@ class SimplePCState : public PCStateCommon
}
};
template <int InstWidth>
std::ostream &
operator<<(std::ostream & os, const SimplePCState<InstWidth> &pc)
{
ccprintf(os, "(%#x=>%#x)", pc.pc(), pc.npc());
return os;
}
// A PC and microcode PC.
template <int InstWidth>
class UPCState : public SimplePCState<InstWidth>
@@ -284,6 +291,13 @@ class UPCState : public SimplePCState<InstWidth>
typedef SimplePCState<InstWidth> Base;
public:
void
output(std::ostream &os) const override
{
Base::output(os);
ccprintf(os, ".(%d=>%d)", this->upc(), this->nupc());
}
PCStateBase *
clone() const override
{
@@ -328,15 +342,6 @@ class UPCState : public SimplePCState<InstWidth>
}
};
template <int InstWidth>
std::ostream &
operator<<(std::ostream & os, const UPCState<InstWidth> &pc)
{
ccprintf(os, "(%#x=>%#x).(%d=>%d)",
pc.pc(), pc.npc(), pc.upc(), pc.nupc());
return os;
}
// A PC with a delay slot.
template <int InstWidth>
class DelaySlotPCState : public SimplePCState<InstWidth>
@@ -347,6 +352,12 @@ class DelaySlotPCState : public SimplePCState<InstWidth>
Addr _nnpc;
public:
void
output(std::ostream &os) const override
{
ccprintf(os, "(%#x=>%#x=>%#x)", this->pc(), this->npc(), nnpc());
}
PCStateBase *
clone() const override
{
@@ -409,15 +420,6 @@ class DelaySlotPCState : public SimplePCState<InstWidth>
}
};
template <int InstWidth>
std::ostream &
operator<<(std::ostream & os, const DelaySlotPCState<InstWidth> &pc)
{
ccprintf(os, "(%#x=>%#x=>%#x)",
pc.pc(), pc.npc(), pc.nnpc());
return os;
}
// A PC with a delay slot and a microcode PC.
template <int InstWidth>
class DelaySlotUPCState : public DelaySlotPCState<InstWidth>
@@ -426,6 +428,13 @@ class DelaySlotUPCState : public DelaySlotPCState<InstWidth>
typedef DelaySlotPCState<InstWidth> Base;
public:
void
output(std::ostream &os) const override
{
Base::output(os);
ccprintf(os, ".(%d=>%d)", this->upc(), this->nupc());
}
PCStateBase *
clone() const override
{
@@ -469,15 +478,6 @@ class DelaySlotUPCState : public DelaySlotPCState<InstWidth>
}
};
template <int InstWidth>
std::ostream &
operator<<(std::ostream & os, const DelaySlotUPCState<InstWidth> &pc)
{
ccprintf(os, "(%#x=>%#x=>%#x).(%d=>%d)",
pc.pc(), pc.npc(), pc.nnpc(), pc.upc(), pc.nupc());
return os;
}
}
} // namespace gem5