gem5  v21.1.0.2
se_workload.hh
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27 
28 #ifndef __ARCH_SPARC_SE_WORKLOAD_HH__
29 #define __ARCH_SPARC_SE_WORKLOAD_HH__
30 
31 #include <vector>
32 
33 #include "arch/sparc/regs/int.hh"
34 #include "arch/sparc/regs/misc.hh"
35 #include "arch/sparc/remote_gdb.hh"
37 #include "cpu/thread_context.hh"
38 #include "sim/se_workload.hh"
39 #include "sim/syscall_abi.hh"
40 
41 namespace gem5
42 {
43 
44 namespace SparcISA
45 {
46 
48 {
49  public:
51 
52  void
53  setSystem(System *sys) override
54  {
56  gdb = BaseRemoteGDB::build<RemoteGDB>(system);
57  }
58 
59  virtual void handleTrap(ThreadContext *tc, int trapNum);
60  virtual void flushWindows(ThreadContext *tc);
61 
62  bool is64(ThreadContext *tc);
63 
65  {
67  };
68 
70  public BaseSyscallABI
71  {};
72 
74  public BaseSyscallABI
75  {};
76 };
77 
78 } // namespace SparcISA
79 
80 GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi);
81 namespace guest_abi
82 {
83 
84 template <typename ABI>
85 struct Result<ABI, SyscallReturn,
86  typename std::enable_if_t<std::is_base_of<
87  SparcISA::SEWorkload::BaseSyscallABI, ABI>::value>>
88 {
89  static void
91  {
92  if (ret.suppressed() || ret.needsRetry())
93  return;
94 
95  // check for error condition. SPARC syscall convention is to
96  // indicate success/failure in reg the carry bit of the ccr
97  // and put the return value itself in the standard return value reg.
98  SparcISA::PSTATE pstate =
100  SparcISA::CCR ccr = tc->readIntReg(SparcISA::INTREG_CCR);
101  RegVal val;
102  if (ret.successful()) {
103  ccr.xcc.c = ccr.icc.c = 0;
104  val = ret.returnValue();
105  } else {
106  ccr.xcc.c = ccr.icc.c = 1;
107  val = ret.errnoValue();
108  }
110  if (pstate.am)
111  val = bits(val, 31, 0);
113  if (ret.count() == 2)
115  }
116 };
117 
118 template <typename Arg>
119 struct Argument<SparcISA::SEWorkload::SyscallABI32, Arg,
120  typename std::enable_if_t<
121  std::is_integral<Arg>::value &&
122  SparcISA::SEWorkload::SyscallABI32::IsWide<Arg>::value>>
123 {
125 
126  static Arg
127  get(ThreadContext *tc, typename ABI::State &state)
128  {
129  panic_if(state + 1 >= ABI::ArgumentRegs.size(),
130  "Ran out of syscall argument registers.");
131  auto high = ABI::ArgumentRegs[state++];
132  auto low = ABI::ArgumentRegs[state++];
133  return (Arg)ABI::mergeRegs(tc, low, high);
134  }
135 };
136 
137 } // namespace guest_abi
138 } // namespace gem5
139 
140 #endif // __ARCH_SPARC_SE_WORKLOAD_HH__
gem5::ThreadContext::setIntReg
virtual void setIntReg(RegIndex reg_idx, RegVal val)=0
gem5::ArmISA::SEWorkload::setSystem
void setSystem(System *sys) override
Definition: se_workload.hh:50
misc.hh
gem5::SyscallReturn::returnValue
int64_t returnValue() const
The return value.
Definition: syscall_return.hh:107
gem5::SyscallReturn::errnoValue
int errnoValue() const
The errno value.
Definition: syscall_return.hh:115
gem5::RegVal
uint64_t RegVal
Definition: types.hh:173
gem5::RiscvISA::ArgumentRegs
const std::vector< int > ArgumentRegs
Definition: int.hh:67
gem5::SyscallReturn
This class represents the return value from an emulated system call, including any errno setting.
Definition: syscall_return.hh:55
gem5::GenericSyscallABI::State
int State
Definition: syscall_abi.hh:44
gem5::Workload::gdb
BaseRemoteGDB * gdb
Definition: workload.hh:74
gem5::X86ISA::val
Bitfield< 63 > val
Definition: misc.hh:775
gem5::GenericSyscallABI64
Definition: syscall_abi.hh:47
std::vector< int >
syscall_abi.hh
remote_gdb.hh
gem5::SparcISA::INTREG_CCR
@ INTREG_CCR
Definition: int.hh:59
gem5::SparcISA::SEWorkload::setSystem
void setSystem(System *sys) override
Definition: se_workload.hh:53
gem5::high
high
Definition: intmath.hh:176
gem5::System
Definition: system.hh:77
gem5::ThreadContext
ThreadContext is the external interface to all thread state for anything outside of the CPU.
Definition: thread_context.hh:93
gem5::SparcISA::ReturnValueReg
const int ReturnValueReg
Definition: int.hh:72
gem5::guest_abi::Result< ABI, SyscallReturn, typename std::enable_if_t< std::is_base_of< SparcISA::SEWorkload::BaseSyscallABI, ABI >::value > >::store
static void store(ThreadContext *tc, const SyscallReturn &ret)
Definition: se_workload.hh:90
gem5::SparcISA::SEWorkload::BaseSyscallABI
Definition: se_workload.hh:64
int.hh
gem5::bits
constexpr T bits(T val, unsigned first, unsigned last)
Extract the bitfield from position 'first' to 'last' (inclusive) from 'val' and right justify it.
Definition: bitfield.hh:76
gem5::SparcISA::SyscallPseudoReturnReg
const int SyscallPseudoReturnReg
Definition: int.hh:77
gem5::SparcISA::SEWorkload
Definition: se_workload.hh:47
gem5::ThreadContext::readMiscRegNoEffect
virtual RegVal readMiscRegNoEffect(RegIndex misc_reg) const =0
gem5::ArmISA::SEWorkload
Definition: se_workload.hh:42
gem5::ArmISA::SEWorkload::SyscallABI32
RegABI32 SyscallABI32
Definition: se_workload.hh:58
gem5::SparcISA::SEWorkload::SyscallABI64
Definition: se_workload.hh:73
gem5::ThreadContext::readIntReg
virtual RegVal readIntReg(RegIndex reg_idx) const =0
gem5::GEM5_DEPRECATED_NAMESPACE
GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi)
gem5::GenericSyscallABI32
Definition: syscall_abi.hh:52
gem5::SparcISA::SEWorkload::SyscallABI32
Definition: se_workload.hh:69
panic_if
#define panic_if(cond,...)
Conditional panic macro that checks the supplied condition and only panics if the condition is true a...
Definition: logging.hh:203
gem5::ArmISA::SEWorkload::SEWorkload
SEWorkload(const Params &p)
Definition: se_workload.hh:47
gem5::guest_abi::Argument< SparcISA::SEWorkload::SyscallABI32, Arg, typename std::enable_if_t< std::is_integral< Arg >::value &&SparcISA::SEWorkload::SyscallABI32::IsWide< Arg >::value > >::get
static Arg get(ThreadContext *tc, typename ABI::State &state)
Definition: se_workload.hh:127
std
Overload hash function for BasicBlockRange type.
Definition: types.hh:111
gem5::SyscallReturn::count
int count() const
How many values did the syscall attempt to return?
Definition: syscall_return.hh:103
gem5::SyscallReturn::value2
int64_t value2() const
Definition: syscall_return.hh:123
gem5::SparcISA::MISCREG_PSTATE
@ MISCREG_PSTATE
Definition: misc.hh:65
gem5::Workload::system
System * system
Definition: workload.hh:78
gem5::guest_abi::Argument
Definition: definition.hh:99
gem5::SparcISA::SEWorkload::flushWindows
virtual void flushWindows(ThreadContext *tc)
Definition: se_workload.cc:96
gem5::SparcISA::SEWorkload::handleTrap
virtual void handleTrap(ThreadContext *tc, int trapNum)
Definition: se_workload.cc:54
gem5::guest_abi::Result
Definition: definition.hh:64
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: decoder.cc:40
gem5::SparcISA::SEWorkload::is64
bool is64(ThreadContext *tc)
Definition: se_workload.cc:48
object_file.hh
gem5::SparcISA::SEWorkload::BaseSyscallABI::ArgumentRegs
static const std::vector< int > ArgumentRegs
Definition: se_workload.hh:66
gem5::SyscallReturn::suppressed
bool suppressed() const
Should returning this value be suppressed?
Definition: syscall_return.hh:100
thread_context.hh
gem5::SyscallReturn::successful
bool successful() const
Was the system call successful?
Definition: syscall_return.hh:91
se_workload.hh
gem5::SyscallReturn::needsRetry
bool needsRetry() const
Does the syscall need to be retried?
Definition: syscall_return.hh:97

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