2 * Copyright (c) 2005 The Regents of The University of Michigan
3 * Copyright (c) 2007 MIPS Technologies, Inc.
4 * Copyright (c) 2016 The University of Virginia
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16 * this software without specific prior written permission.
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35 #include "arch/riscv/linux/process.hh"
39 #include "arch/riscv/isa_traits.hh"
40 #include "arch/riscv/linux/linux.hh"
41 #include "base/trace.hh"
42 #include "cpu/thread_context.hh"
43 #include "debug/SyscallVerbose.hh"
44 #include "kern/linux/linux.hh"
45 #include "sim/eventq.hh"
46 #include "sim/process.hh"
47 #include "sim/syscall_emul.hh"
48 #include "sim/system.hh"
51 using namespace RiscvISA
;
53 /// Target uname() handler.
55 unameFunc(SyscallDesc
*desc
, int callnum
, LiveProcess
*process
,
59 TypedBufferArg
<Linux::utsname
> name(process
->getSyscallArg(tc
, index
));
61 strcpy(name
->sysname
, "Linux");
62 strcpy(name
->nodename
,"sim.gem5.org");
63 strcpy(name
->release
, "3.0.0");
64 strcpy(name
->version
, "#1 Mon Aug 18 11:32:15 EDT 2003");
65 strcpy(name
->machine
, "riscv");
67 name
.copyOut(tc
->getMemProxy());
71 std::map
<int, SyscallDesc
> RiscvLinuxProcess::syscallDescs
= {
72 {17, SyscallDesc("getcwd", getcwdFunc
)},
73 {23, SyscallDesc("dup", dupFunc
)},
74 {25, SyscallDesc("fcntl", fcntlFunc
)},
75 {29, SyscallDesc("ioctl", ioctlFunc
<RiscvLinux
>)},
76 {34, SyscallDesc("mkdirat", unimplementedFunc
)},
77 {35, SyscallDesc("unlinkat", unlinkatFunc
<RiscvLinux
>)},
78 {37, SyscallDesc("linkat", unimplementedFunc
)},
79 {38, SyscallDesc("renameat", renameatFunc
<RiscvLinux
>)},
80 {46, SyscallDesc("ftruncate", ftruncateFunc
)},
81 {48, SyscallDesc("faccessat", faccessatFunc
<RiscvLinux
>)},
82 {49, SyscallDesc("chdir", unimplementedFunc
)},
83 {56, SyscallDesc("openat", openatFunc
<RiscvLinux
>)},
84 {57, SyscallDesc("close", closeFunc
)},
85 {61, SyscallDesc("getdents", unimplementedFunc
)},
86 {62, SyscallDesc("lseek", lseekFunc
)},
87 {63, SyscallDesc("read", readFunc
)},
88 {64, SyscallDesc("write", writeFunc
)},
89 {66, SyscallDesc("writev", writevFunc
<RiscvLinux
>)},
90 {67, SyscallDesc("pread", unimplementedFunc
)},
91 {68, SyscallDesc("pwrite", unimplementedFunc
)},
92 {78, SyscallDesc("readlinkat", readlinkatFunc
<RiscvLinux
>)},
93 {79, SyscallDesc("fstatat", unimplementedFunc
)},
94 {80, SyscallDesc("fstat", fstatFunc
<RiscvLinux
>)},
95 {93, SyscallDesc("exit", exitFunc
)},
96 {94, SyscallDesc("exit_group", exitGroupFunc
)},
97 {113, SyscallDesc("clock_gettime", clock_gettimeFunc
<RiscvLinux
>)},
98 {129, SyscallDesc("kill", unimplementedFunc
)},
99 {134, SyscallDesc("rt_sigaction", ignoreFunc
, SyscallDesc::WarnOnce
)},
100 {135, SyscallDesc("rt_sigprocmask", ignoreFunc
, SyscallDesc::WarnOnce
)},
101 {153, SyscallDesc("times", timesFunc
<RiscvLinux
>)},
102 {160, SyscallDesc("uname", unameFunc
)},
103 {163, SyscallDesc("getrlimit", getrlimitFunc
<RiscvLinux
>)},
104 {164, SyscallDesc("setrlimit", ignoreFunc
)},
105 {165, SyscallDesc("getrusage", getrusageFunc
<RiscvLinux
>)},
106 {169, SyscallDesc("gettimeofday", gettimeofdayFunc
<RiscvLinux
>)},
107 {172, SyscallDesc("getpid", getpidFunc
)},
108 {174, SyscallDesc("getuid", getuidFunc
)},
109 {175, SyscallDesc("geteuid", geteuidFunc
)},
110 {176, SyscallDesc("getgid", getgidFunc
)},
111 {177, SyscallDesc("getegid", getegidFunc
)},
112 {214, SyscallDesc("brk", brkFunc
)},
113 {215, SyscallDesc("munmap", munmapFunc
)},
114 {216, SyscallDesc("mremap", mremapFunc
<RiscvLinux
>)},
115 {222, SyscallDesc("mmap", mmapFunc
<RiscvLinux
>)},
116 {226, SyscallDesc("mprotect", ignoreFunc
)},
117 {1024, SyscallDesc("open", openFunc
<RiscvLinux
>)},
118 {1025, SyscallDesc("link", unimplementedFunc
)},
119 {1026, SyscallDesc("unlink", unlinkFunc
)},
120 {1030, SyscallDesc("mkdir", mkdirFunc
)},
121 {1033, SyscallDesc("access", accessFunc
)},
122 {1038, SyscallDesc("stat", statFunc
<RiscvLinux
>)},
123 {1039, SyscallDesc("lstat", lstatFunc
<RiscvLinux
>)},
124 {1062, SyscallDesc("time", timeFunc
<RiscvLinux
>)},
125 {2011, SyscallDesc("getmainvars", unimplementedFunc
)},
128 RiscvLinuxProcess::RiscvLinuxProcess(LiveProcessParams
* params
,
129 ObjectFile
*objFile
) : RiscvLiveProcess(params
, objFile
)
133 RiscvLinuxProcess::getDesc(int callnum
)
135 return syscallDescs
.find(callnum
) != syscallDescs
.end() ?
136 &syscallDescs
.at(callnum
) : nullptr;