gem5  v21.1.0.2
syscall_desc.cc
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2016 Advanced Micro Devices, Inc.
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29 
30 #include "sim/syscall_desc.hh"
31 
32 #include "base/types.hh"
34 
35 namespace gem5
36 {
37 
38 class ThreadContext;
39 
40 void
42 {
43  DPRINTF_SYSCALL(Base, "Calling %s...\n", dumper(name(), tc));
44 
45  SyscallReturn retval = executor(this, tc);
46 
47  if (retval.needsRetry())
48  DPRINTF_SYSCALL(Base, "Needs retry.\n", name());
49  else if (retval.suppressed())
50  DPRINTF_SYSCALL(Base, "No return value.\n", name());
51  else
52  DPRINTF_SYSCALL(Base, "Returned %d.\n", retval.encodedValue());
53 }
54 
55 } // namespace gem5
syscall_debug_macros.hh
gem5::SyscallReturn
This class represents the return value from an emulated system call, including any errno setting.
Definition: syscall_return.hh:55
gem5::SyscallDesc::executor
Executor executor
Mechanism for ISAs to connect to the emul function definitions.
Definition: syscall_desc.hh:104
gem5::SyscallDesc::doSyscall
void doSyscall(ThreadContext *tc)
Interface for invoking the system call funcion pointer.
Definition: syscall_desc.cc:41
gem5::auxv::Base
@ Base
Definition: aux_vector.hh:76
gem5::ThreadContext
ThreadContext is the external interface to all thread state for anything outside of the CPU.
Definition: thread_context.hh:93
DPRINTF_SYSCALL
#define DPRINTF_SYSCALL(FLAGEXT, FMT,...)
This macro is intended to help with readability.
Definition: syscall_debug_macros.hh:57
gem5::SyscallReturn::encodedValue
int64_t encodedValue() const
The encoded value (as described above)
Definition: syscall_return.hh:122
gem5::SyscallDesc::dumper
Dumper dumper
Definition: syscall_desc.hh:105
types.hh
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: decoder.cc:40
gem5::SyscallDesc::name
std::string name() const
Definition: syscall_desc.hh:80
gem5::SyscallReturn::suppressed
bool suppressed() const
Should returning this value be suppressed?
Definition: syscall_return.hh:100
syscall_desc.hh
gem5::SyscallReturn::needsRetry
bool needsRetry() const
Does the syscall need to be retried?
Definition: syscall_return.hh:97

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