syscall_emul.cc (4118:ddd23e5282d7) syscall_emul.cc (5282:2dba627b6646)
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;

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345 return (result == -1) ? -errno : result;
346}
347
348
349SyscallReturn
350dupFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc)
351{
352 int fd = process->sim_fd(tc->getSyscallArg(0));
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;

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345 return (result == -1) ? -errno : result;
346}
347
348
349SyscallReturn
350dupFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc)
351{
352 int fd = process->sim_fd(tc->getSyscallArg(0));
353
354 if (fd < 0)
355 return -EBADF;
356
353 if (fd < 0)
354 return -EBADF;
355
356 Process::FdMap *fdo = process->sim_fd_obj(tc->getSyscallArg(0));
357
357 int result = dup(fd);
358 int result = dup(fd);
358 return (result == -1) ? -errno : process->alloc_fd(result);
359 return (result == -1) ? -errno : process->alloc_fd(result, fdo->filename, fdo->flags, fdo->mode, false);
359}
360
361
362SyscallReturn
363fcntlFunc(SyscallDesc *desc, int num, LiveProcess *process,
364 ThreadContext *tc)
365{
366 int fd = tc->getSyscallArg(0);

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437 int fds[2], sim_fds[2];
438 int pipe_retval = pipe(fds);
439
440 if (pipe_retval < 0) {
441 // error
442 return pipe_retval;
443 }
444
360}
361
362
363SyscallReturn
364fcntlFunc(SyscallDesc *desc, int num, LiveProcess *process,
365 ThreadContext *tc)
366{
367 int fd = tc->getSyscallArg(0);

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438 int fds[2], sim_fds[2];
439 int pipe_retval = pipe(fds);
440
441 if (pipe_retval < 0) {
442 // error
443 return pipe_retval;
444 }
445
445 sim_fds[0] = process->alloc_fd(fds[0]);
446 sim_fds[1] = process->alloc_fd(fds[1]);
446 sim_fds[0] = process->alloc_fd(fds[0], "PIPE-READ", O_WRONLY, -1, true);
447 sim_fds[1] = process->alloc_fd(fds[1], "PIPE-WRITE", O_RDONLY, -1, true);
447
448
449 process->setReadPipeSource(sim_fds[0], sim_fds[1]);
448 // Alpha Linux convention for pipe() is that fd[0] is returned as
449 // the return value of the function, and fd[1] is returned in r20.
450 tc->setIntReg(SyscallPseudoReturnReg, sim_fds[1]);
451 return sim_fds[0];
452}
453
454
455SyscallReturn

--- 92 unchanged lines hidden --- 		450 // Alpha Linux convention for pipe() is that fd[0] is returned as
451 // the return value of the function, and fd[1] is returned in r20.
452 tc->setIntReg(SyscallPseudoReturnReg, sim_fds[1]);
453 return sim_fds[0];
454}
455
456
457SyscallReturn

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