gem5  v21.1.0.2
reg_abi.hh
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27 
28 #ifndef __ARCH_ARM_REG_ABI_HH__
29 #define __ARCH_ARM_REG_ABI_HH__
30 
31 #include <vector>
32 
33 #include "base/logging.hh"
34 #include "sim/syscall_abi.hh"
35 
36 namespace gem5
37 {
38 
39 namespace ArmISA
40 {
41 
43 {
45 };
46 
48 {
50 };
51 
52 } // namespace ArmISA
53 
54 GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi);
55 namespace guest_abi
56 {
57 
58 template <typename ABI, typename Arg>
59 struct Argument<ABI, Arg,
60  typename std::enable_if_t<
61  std::is_base_of<ArmISA::RegABI32, ABI>::value &&
62  std::is_integral<Arg>::value &&
63  ABI::template IsWide<Arg>::value>>
64 {
65  static Arg
66  get(ThreadContext *tc, typename ABI::State &state)
67  {
68  // 64 bit arguments are passed starting in an even register.
69  if (state % 2)
70  state++;
71  panic_if(state + 1 >= ABI::ArgumentRegs.size(),
72  "Ran out of syscall argument registers.");
73  auto low = ABI::ArgumentRegs[state++];
74  auto high = ABI::ArgumentRegs[state++];
75  return (Arg)ABI::mergeRegs(tc, low, high);
76  }
77 };
78 
79 } // namespace guest_abi
80 } // namespace gem5
81 
82 #endif // __ARCH_ARM_REG_ABI_HH__
gem5::ArmISA::RegABI64::ArgumentRegs
static const std::vector< int > ArgumentRegs
Definition: reg_abi.hh:49
gem5::ArmISA::RegABI64
Definition: reg_abi.hh:47
gem5::RiscvISA::ArgumentRegs
const std::vector< int > ArgumentRegs
Definition: int.hh:67
gem5::guest_abi::Argument< ABI, Arg, typename std::enable_if_t< std::is_base_of< ArmISA::RegABI32, ABI >::value &&std::is_integral< Arg >::value &&ABI::template IsWide< Arg >::value > >::get
static Arg get(ThreadContext *tc, typename ABI::State &state)
Definition: reg_abi.hh:66
gem5::GenericSyscallABI64
Definition: syscall_abi.hh:47
std::vector< int >
syscall_abi.hh
gem5::ArmISA::RegABI32::ArgumentRegs
static const std::vector< int > ArgumentRegs
Definition: reg_abi.hh:44
gem5::high
high
Definition: intmath.hh:176
gem5::ThreadContext
ThreadContext is the external interface to all thread state for anything outside of the CPU.
Definition: thread_context.hh:93
gem5::GEM5_DEPRECATED_NAMESPACE
GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi)
gem5::GenericSyscallABI32
Definition: syscall_abi.hh:52
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
std
Overload hash function for BasicBlockRange type.
Definition: types.hh:111
logging.hh
gem5::guest_abi::Argument
Definition: definition.hh:99
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: decoder.cc:40
gem5::ArmISA::RegABI32
Definition: reg_abi.hh:42

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