linux.cc (5795:72ce7502dc71) linux.cc (6227:a17798f2a52c)
1/*
2 * Copyright (c) 2009 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

--- 29 unchanged lines hidden (view full) ---

38int
39Linux::openSpecialFile(std::string path, LiveProcess *process, ThreadContext *tc)
40{
41 DPRINTF(SyscallVerbose, "Opening special file: %s\n", path.c_str());
42 if (path.compare(0, 13, "/proc/meminfo") == 0) {
43 std::string data = Linux::procMeminfo(process, tc);
44 FILE *f = tmpfile();
45 int fd = fileno(f);
1/*
2 * Copyright (c) 2009 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

--- 29 unchanged lines hidden (view full) ---

38int
39Linux::openSpecialFile(std::string path, LiveProcess *process, ThreadContext *tc)
40{
41 DPRINTF(SyscallVerbose, "Opening special file: %s\n", path.c_str());
42 if (path.compare(0, 13, "/proc/meminfo") == 0) {
43 std::string data = Linux::procMeminfo(process, tc);
44 FILE *f = tmpfile();
45 int fd = fileno(f);
46 int ret M5_VAR_USED = fwrite(data.c_str(), 1, data.size(), f);
46 size_t ret M5_VAR_USED = fwrite(data.c_str(), 1, data.size(), f);
47 assert(ret == data.size());
48 rewind(f);
49 return fd;
50 }
51
52 warn("Attempting to open special file: %s. Ignorning. Simulation may"
53 " take un-expected code path or be non-deterministic until proper"
54 " handling is implemented.\n", path.c_str());
55 return -1;
56}
57
58std::string
59Linux::procMeminfo(LiveProcess *process, ThreadContext *tc)
60{
61 return csprintf("MemTotal:%12d kB\nMemFree: %12d kB\n",
62 process->system->memSize() >> 10,
63 process->system->freeMemSize() >> 10);
64}
65
47 assert(ret == data.size());
48 rewind(f);
49 return fd;
50 }
51
52 warn("Attempting to open special file: %s. Ignorning. Simulation may"
53 " take un-expected code path or be non-deterministic until proper"
54 " handling is implemented.\n", path.c_str());
55 return -1;
56}
57
58std::string
59Linux::procMeminfo(LiveProcess *process, ThreadContext *tc)
60{
61 return csprintf("MemTotal:%12d kB\nMemFree: %12d kB\n",
62 process->system->memSize() >> 10,
63 process->system->freeMemSize() >> 10);
64}
65