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authorSteve Reinhardt <steve.reinhardt@amd.com>2016-04-01 16:38:15 -0700
committerSteve Reinhardt <steve.reinhardt@amd.com>2016-04-01 16:38:15 -0700
commit0e214bdfd1dd2e963200875bc8f5ea31e5262503 (patch)
treefb1402ef189c8904cc9f62a65cc9bbcfef26412c /src/kern/linux
parent41c358c411a0a1dd555c9da9b01c3ff39937b367 (diff)
downloadgem5-0e214bdfd1dd2e963200875bc8f5ea31e5262503.tar.xz
syscall_emul: factor out flag tables into common file
The openFlagTable and mmapFlagTables for emulated Linux platforms are basically identical, but are specified repetitively for every platform. Use a common file that gets included for each platform so that we only have one copy, making them more consistent and simplifying changes (like adding #ifdefs). In the process, made some minor fixes that slipped through due to previous inconsistencies, and added more #ifdefs to try to fix building on alternative hosts.
Diffstat (limited to 'src/kern/linux')
-rw-r--r--src/kern/linux/flag_tables.hh156
1 files changed, 156 insertions, 0 deletions
diff --git a/src/kern/linux/flag_tables.hh b/src/kern/linux/flag_tables.hh
new file mode 100644
index 000000000..30c8f54a5
--- /dev/null
+++ b/src/kern/linux/flag_tables.hh
@@ -0,0 +1,156 @@
+/*
+ * Copyright (c) 2011 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * Copyright (c) 2003-2005, 2006 The Regents of The University of Michigan
+ * Copyright (c) 2007-2008 The Florida State University
+ * Copyright (c) 2009 The University of Edinburgh
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Korey Sewell
+ */
+
+/*
+ * @file flag_tables.hh
+ *
+ * This file contains definitions of flag translation tables for the
+ * open() and mmap() system calls. Since the tables are nearly identical
+ * across target platforms (other than the values of the target flags),
+ * we use a single copy of the tables but include it separately for
+ * each target platform. The TARGET macro must be #defined before including
+ * to indicate the class for which the table is being defined.
+ *
+ * See src/arch/<*>/linux/linux.cc.
+ */
+
+// open(2) flags translation table
+SyscallFlagTransTable TARGET::openFlagTable[] = {
+#ifdef _MSC_VER
+ { TARGET::TGT_O_RDONLY, _O_RDONLY },
+ { TARGET::TGT_O_WRONLY, _O_WRONLY },
+ { TARGET::TGT_O_RDWR, _O_RDWR },
+ { TARGET::TGT_O_CREAT, _O_CREAT },
+ { TARGET::TGT_O_EXCL, _O_EXCL },
+ { TARGET::TGT_O_TRUNC, _O_TRUNC },
+ { TARGET::TGT_O_APPEND, _O_APPEND },
+#else /* !_MSC_VER */
+ { TARGET::TGT_O_RDONLY, O_RDONLY },
+ { TARGET::TGT_O_WRONLY, O_WRONLY },
+ { TARGET::TGT_O_RDWR, O_RDWR },
+ { TARGET::TGT_O_CREAT, O_CREAT },
+ { TARGET::TGT_O_EXCL, O_EXCL },
+ { TARGET::TGT_O_TRUNC, O_TRUNC },
+ { TARGET::TGT_O_APPEND, O_APPEND },
+ { TARGET::TGT_O_NOCTTY, O_NOCTTY },
+ { TARGET::TGT_O_NONBLOCK, O_NONBLOCK },
+#ifdef O_DSYNC
+ { TARGET::TGT_O_DSYNC, O_DSYNC },
+#endif
+#ifdef O_ASYNC
+ { TARGET::TGT_FASYNC, O_ASYNC },
+#endif
+#ifdef O_DIRECT
+ { TARGET::TGT_O_DIRECT, O_DIRECT },
+#endif
+#ifdef O_LARGEFILE
+ { TARGET::TGT_O_LARGEFILE, O_LARGEFILE },
+#endif
+#ifdef O_DIRECTORY
+ { TARGET::TGT_O_DIRECTORY, O_DIRECTORY },
+#endif
+#ifdef O_NOFOLLOW
+ { TARGET::TGT_O_NOFOLLOW, O_NOFOLLOW },
+#endif
+#ifdef O_NOATIME
+ { TARGET::TGT_O_NOATIME, O_NOATIME },
+#endif
+#ifdef O_CLOEXEC
+ { TARGET::TGT_O_CLOEXEC, O_CLOEXEC },
+#endif
+#ifdef O_SYNC
+ { TARGET::TGT_O_SYNC, O_SYNC },
+#endif
+#ifdef O_PATH
+ { TARGET::TGT_O_PATH, O_PATH },
+#endif
+#endif /* _MSC_VER */
+};
+
+const int TARGET::NUM_OPEN_FLAGS =
+ sizeof(TARGET::openFlagTable) / sizeof(TARGET::openFlagTable[0]);
+
+// mmap(2) flags translation table
+SyscallFlagTransTable TARGET::mmapFlagTable[] = {
+ { TARGET::TGT_MAP_SHARED, MAP_SHARED },
+ { TARGET::TGT_MAP_PRIVATE, MAP_PRIVATE },
+ { TARGET::TGT_MAP_FIXED, MAP_FIXED },
+ { TARGET::TGT_MAP_ANONYMOUS, MAP_ANONYMOUS },
+ { TARGET::TGT_MAP_ANON, MAP_ANON },
+ { TARGET::TGT_MAP_FILE, MAP_FILE },
+#if defined(MAP_32BIT) && defined(TARGET_HAS_MAP_32BIT)
+ { TARGET::TGT_MAP_32BIT, MAP_32BIT },
+#endif
+#ifdef MAP_DENYWRITE
+ { TARGET::TGT_MAP_DENYWRITE, MAP_DENYWRITE },
+#endif
+#ifdef MAP_EXECUTABLE
+ { TARGET::TGT_MAP_EXECUTABLE, MAP_EXECUTABLE },
+#endif
+#ifdef MAP_GROWSDOWN
+ { TARGET::TGT_MAP_GROWSDOWN, MAP_GROWSDOWN },
+#endif
+#ifdef MAP_HUGETLB
+ { TARGET::TGT_MAP_HUGETLB, MAP_HUGETLB },
+#endif
+#ifdef MAP_LOCKED
+ { TARGET::TGT_MAP_LOCKED, MAP_LOCKED },
+#endif
+#ifdef MAP_NONBLOCK
+ { TARGET::TGT_MAP_NONBLOCK, MAP_NONBLOCK },
+#endif
+#ifdef MAP_NORESERVE
+ { TARGET::TGT_MAP_NORESERVE, MAP_NORESERVE },
+#endif
+#ifdef MAP_POPULATE
+ { TARGET::TGT_MAP_POPULATE, MAP_POPULATE },
+#endif
+#ifdef MAP_STACK
+ { TARGET::TGT_MAP_STACK, MAP_STACK },
+#endif
+};
+
+const unsigned TARGET::NUM_MMAP_FLAGS =
+ sizeof(TARGET::mmapFlagTable) / sizeof(TARGET::mmapFlagTable[0]);
+