syscall_emul.cc (13569:47a2291177a7) syscall_emul.cc (13570:b6484720c6a9)
1/*
2 * Copyright (c) 2003-2005 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;

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

274closeFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
275{
276 int index = 0;
277 int tgt_fd = p->getSyscallArg(tc, index);
278
279 return p->fds->closeFDEntry(tgt_fd);
280}
281
1/*
2 * Copyright (c) 2003-2005 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;

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

274closeFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
275{
276 int index = 0;
277 int tgt_fd = p->getSyscallArg(tc, index);
278
279 return p->fds->closeFDEntry(tgt_fd);
280}
281
282
283SyscallReturn
282SyscallReturn
284readFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
285{
286 int index = 0;
287 int tgt_fd = p->getSyscallArg(tc, index);
288 Addr buf_ptr = p->getSyscallArg(tc, index);
289 int nbytes = p->getSyscallArg(tc, index);
290
291 auto hbfdp = std::dynamic_pointer_cast<HBFDEntry>((*p->fds)[tgt_fd]);
292 if (!hbfdp)
293 return -EBADF;
294 int sim_fd = hbfdp->getSimFD();
295
296 BufferArg bufArg(buf_ptr, nbytes);
297 int bytes_read = read(sim_fd, bufArg.bufferPtr(), nbytes);
298
299 if (bytes_read > 0)
300 bufArg.copyOut(tc->getMemProxy());
301
302 return bytes_read;
303}
304
305SyscallReturn
306writeFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
307{
308 int index = 0;
309 int tgt_fd = p->getSyscallArg(tc, index);
310 Addr buf_ptr = p->getSyscallArg(tc, index);
311 int nbytes = p->getSyscallArg(tc, index);
312
313 auto hbfdp = std::dynamic_pointer_cast<HBFDEntry>((*p->fds)[tgt_fd]);
314 if (!hbfdp)
315 return -EBADF;
316 int sim_fd = hbfdp->getSimFD();
317
318 BufferArg bufArg(buf_ptr, nbytes);
319 bufArg.copyIn(tc->getMemProxy());
320
321 int bytes_written = write(sim_fd, bufArg.bufferPtr(), nbytes);
322
323 fsync(sim_fd);
324
325 return bytes_written;
326}
327
328
329SyscallReturn
330lseekFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
331{
332 int index = 0;
333 int tgt_fd = p->getSyscallArg(tc, index);
334 uint64_t offs = p->getSyscallArg(tc, index);
335 int whence = p->getSyscallArg(tc, index);
336
337 auto ffdp = std::dynamic_pointer_cast<FileFDEntry>((*p->fds)[tgt_fd]);

--- 1279 unchanged lines hidden --- 		283lseekFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
284{
285 int index = 0;
286 int tgt_fd = p->getSyscallArg(tc, index);
287 uint64_t offs = p->getSyscallArg(tc, index);
288 int whence = p->getSyscallArg(tc, index);
289
290 auto ffdp = std::dynamic_pointer_cast<FileFDEntry>((*p->fds)[tgt_fd]);

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