se_workload.hh

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#ifndef __ARCH_ARM_LINUX_SE_WORKLOAD_HH__
#define __ARCH_ARM_LINUX_SE_WORKLOAD_HH__
 
#include "arch/arm/linux/linux.hh"
#include "arch/arm/page_size.hh"
#include "arch/arm/regs/int.hh"
#include "arch/arm/se_workload.hh"
#include "params/ArmEmuLinux.hh"
#include "sim/syscall_desc.hh"
 
namespace gem5
{
 
namespace ArmISA
{
 
class EmuLinux : public SEWorkload
{
  public:
    using Params = ArmEmuLinuxParams;
 
    EmuLinux(const Params &p) : SEWorkload(p, PageShift) {}
    ByteOrder byteOrder() const override { return ByteOrder::little; }
 
    struct BaseSyscallABI {};
    struct SyscallABI32 : public SEWorkload::SyscallABI32,
                          public BaseSyscallABI
    {};
    struct SyscallABI64 : public SEWorkload::SyscallABI64,
                          public BaseSyscallABI
    {};
 
    void syscall(ThreadContext *tc) override;
};
 
} // namespace ArmISA
 
namespace guest_abi
{
 
template <typename ABI>
struct Result<ABI, SyscallReturn,
    typename std::enable_if_t<std::is_base_of_v<
        ArmISA::EmuLinux::BaseSyscallABI, ABI>>>
{
    static void
    store(ThreadContext *tc, const SyscallReturn &ret)
    {
        tc->setReg(ArmISA::ReturnValueReg, ret.encodedValue());
        if (ret.count() > 1)
            tc->setReg(ArmISA::SyscallPseudoReturnReg, ret.value2());
    }
};
 
} // namespace guest_abi
} // namespace gem5
 
#endif // __ARCH_ARM_LINUX_SE_WORKLOAD_HH__