syscall_emul.hh (13649:d1bb2eb7d0f6) syscall_emul.hh (13650:93efc0143eb7)
1/*
2 * Copyright (c) 2012-2013, 2015 ARM Limited
3 * Copyright (c) 2015 Advanced Micro Devices, Inc.
4 * All rights reserved
5 *
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating

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436 futex_map.suspend_bitset(uaddr, process->tgid(), tc, val3);
437 }
438
439 return 0;
440 } else if (OS::TGT_FUTEX_WAKE == op) {
441 return futex_map.wakeup(uaddr, process->tgid(), val);
442 } else if (OS::TGT_FUTEX_WAKE_BITSET == op) {
443 return futex_map.wakeup_bitset(uaddr, process->tgid(), val3);
1/*
2 * Copyright (c) 2012-2013, 2015 ARM Limited
3 * Copyright (c) 2015 Advanced Micro Devices, Inc.
4 * All rights reserved
5 *
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating

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436 futex_map.suspend_bitset(uaddr, process->tgid(), tc, val3);
437 }
438
439 return 0;
440 } else if (OS::TGT_FUTEX_WAKE == op) {
441 return futex_map.wakeup(uaddr, process->tgid(), val);
442 } else if (OS::TGT_FUTEX_WAKE_BITSET == op) {
443 return futex_map.wakeup_bitset(uaddr, process->tgid(), val3);
444 }
444 } else if (OS::TGT_FUTEX_REQUEUE == op ||
445 OS::TGT_FUTEX_CMP_REQUEUE == op) {
445
446
447 // Ensure futex system call accessed atomically.
448 BufferArg buf(uaddr, sizeof(int));
449 buf.copyIn(tc->getMemProxy());
450 int mem_val = *(int*)buf.bufferPtr();
451 /*
452 * For CMP_REQUEUE, the whole operation is only started only if
453 * val3 is still the value of the futex pointed to by uaddr.
454 */
455 if (OS::TGT_FUTEX_CMP_REQUEUE && val3 != mem_val)
456 return -OS::TGT_EWOULDBLOCK;
457 return futex_map.requeue(uaddr, process->tgid(), val, timeout, uaddr2);
458 }
446 warn("futex: op %d not implemented; ignoring.", op);
447 return -ENOSYS;
448}
449
450
451/// Pseudo Funcs - These functions use a different return convension,
452/// returning a second value in a register other than the normal return register
453SyscallReturn pipePseudoFunc(SyscallDesc *desc, int num,

--- 2240 unchanged lines hidden --- 		459 warn("futex: op %d not implemented; ignoring.", op);
460 return -ENOSYS;
461}
462
463
464/// Pseudo Funcs - These functions use a different return convension,
465/// returning a second value in a register other than the normal return register
466SyscallReturn pipePseudoFunc(SyscallDesc *desc, int num,

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