syscall_emul.hh (10850:e4328e028961) syscall_emul.hh (10930:ddc3d96d6313)
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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548/// do line or block buffering. We always claim that output fds are
549/// not TTYs to provide repeatable results.
550template <class OS>
551SyscallReturn
552ioctlFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
553 ThreadContext *tc)
554{
555 int index = 0;
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

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

548/// do line or block buffering. We always claim that output fds are
549/// not TTYs to provide repeatable results.
550template <class OS>
551SyscallReturn
552ioctlFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
553 ThreadContext *tc)
554{
555 int index = 0;
556 int fd = process->getSyscallArg(tc, index);
556 int tgt_fd = process->getSyscallArg(tc, index);
557 unsigned req = process->getSyscallArg(tc, index);
558
557 unsigned req = process->getSyscallArg(tc, index);
558
559 DPRINTF(SyscallVerbose, "ioctl(%d, 0x%x, ...)\n", fd, req);
559 DPRINTF(SyscallVerbose, "ioctl(%d, 0x%x, ...)\n", tgt_fd, req);
560
560
561 Process::FdMap *fdObj = process->sim_fd_obj(fd);
561 FDEntry *fde = process->get_fd_entry(tgt_fd);
562
562
563 if (fdObj == NULL) {
563 if (fde == NULL) {
564 // doesn't map to any simulator fd: not a valid target fd
565 return -EBADF;
566 }
567
564 // doesn't map to any simulator fd: not a valid target fd
565 return -EBADF;
566 }
567
568 if (fdObj->driver != NULL) {
569 return fdObj->driver->ioctl(process, tc, req);
568 if (fde->driver != NULL) {
569 return fde->driver->ioctl(process, tc, req);
570 }
571
572 if (OS::isTtyReq(req)) {
573 return -ENOTTY;
574 }
575
576 warn("Unsupported ioctl call: ioctl(%d, 0x%x, ...) @ \n",
570 }
571
572 if (OS::isTtyReq(req)) {
573 return -ENOTTY;
574 }
575
576 warn("Unsupported ioctl call: ioctl(%d, 0x%x, ...) @ \n",
577 fd, req, tc->pcState());
577 tgt_fd, req, tc->pcState());
578 return -ENOTTY;
579}
580
581template <class OS>
582static SyscallReturn
583openFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
584 ThreadContext *tc, int index)
585{

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1230 int flags = p->getSyscallArg(tc, index);
1231 int tgt_fd = p->getSyscallArg(tc, index);
1232 int offset = p->getSyscallArg(tc, index);
1233
1234 if (length > 0x100000000ULL)
1235 warn("mmap length argument %#x is unreasonably large.\n", length);
1236
1237 if (!(flags & OS::TGT_MAP_ANONYMOUS)) {
578 return -ENOTTY;
579}
580
581template <class OS>
582static SyscallReturn
583openFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
584 ThreadContext *tc, int index)
585{

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1230 int flags = p->getSyscallArg(tc, index);
1231 int tgt_fd = p->getSyscallArg(tc, index);
1232 int offset = p->getSyscallArg(tc, index);
1233
1234 if (length > 0x100000000ULL)
1235 warn("mmap length argument %#x is unreasonably large.\n", length);
1236
1237 if (!(flags & OS::TGT_MAP_ANONYMOUS)) {
1238 Process::FdMap *fd_map = p->sim_fd_obj(tgt_fd);
1239 if (!fd_map || fd_map->fd < 0) {
1238 FDEntry *fde = p->get_fd_entry(tgt_fd);
1239 if (!fde || fde->fd < 0) {
1240 warn("mmap failing: target fd %d is not valid\n", tgt_fd);
1241 return -EBADF;
1242 }
1243
1240 warn("mmap failing: target fd %d is not valid\n", tgt_fd);
1241 return -EBADF;
1242 }
1243
1244 if (fd_map->filename != "/dev/zero") {
1244 if (fde->filename != "/dev/zero") {
1245 // This is very likely broken, but leave a warning here
1246 // (rather than panic) in case /dev/zero is known by
1247 // another name on some platform
1248 warn("allowing mmap of file %s; mmap not supported on files"
1245 // This is very likely broken, but leave a warning here
1246 // (rather than panic) in case /dev/zero is known by
1247 // another name on some platform
1248 warn("allowing mmap of file %s; mmap not supported on files"
1249 " other than /dev/zero\n", fd_map->filename);
1249 " other than /dev/zero\n", fde->filename);
1250 }
1251 }
1252
1253 length = roundUp(length, TheISA::PageBytes);
1254
1255 if ((start % TheISA::PageBytes) != 0 ||
1256 (offset % TheISA::PageBytes) != 0) {
1257 warn("mmap failing: arguments not page-aligned: "

--- 256 unchanged lines hidden --- 		1250 }
1251 }
1252
1253 length = roundUp(length, TheISA::PageBytes);
1254
1255 if ((start % TheISA::PageBytes) != 0 ||
1256 (offset % TheISA::PageBytes) != 0) {
1257 warn("mmap failing: arguments not page-aligned: "

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