1 files changed, 111 insertions, 0 deletions
diff --git a/base/aout_object.cc b/base/aout_object.cc
new file mode 100644
index 000000000..c0f43a687
--- /dev/null
+++ b/base/aout_object.cc
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * 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.
+ */
+
+#include <string>
+
+#include "aout_object.hh"
+
+#include "functional_memory.hh"
+#include "symtab.hh"
+
+#include "trace.hh"	// for DPRINTF
+
+#include "exec_aout.h"
+
+using namespace std;
+
+ObjectFile *
+AoutObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
+{
+    if (!N_BADMAG(*(aout_exechdr *)data)) {
+        return new AoutObject(fname, fd, len, data);
+    }
+    else {
+        return NULL;
+    }
+}
+
+
+AoutObject::AoutObject(const string &_filename, int _fd,
+                         size_t _len, uint8_t *_data)
+    : ObjectFile(_filename, _fd, _len, _data)
+{
+    execHdr = (aout_exechdr *)fileData;
+
+    entry = execHdr->entry;
+
+    text.baseAddr = N_TXTADDR(*execHdr);
+    text.size = execHdr->tsize;
+
+    data.baseAddr = N_DATADDR(*execHdr);
+    data.size = execHdr->dsize;
+
+    bss.baseAddr = N_BSSADDR(*execHdr);
+    bss.size = execHdr->bsize;
+
+    DPRINTFR(Loader, "text: 0x%x %d\ndata: 0x%x %d\nbss: 0x%x %d\n",
+             text.baseAddr, text.size, data.baseAddr, data.size,
+             bss.baseAddr, bss.size);
+}
+
+
+bool
+AoutObject::loadSections(FunctionalMemory *mem, bool loadPhys)
+{
+    Addr textAddr = text.baseAddr;
+    Addr dataAddr = data.baseAddr;
+
+    if (loadPhys) {
+        textAddr &= (ULL(1) << 40) - 1;
+        dataAddr &= (ULL(1) << 40) - 1;
+    }
+
+    // Since we don't really have an MMU and all memory is
+    // zero-filled, there's no need to set up the BSS segment.
+    if (text.size != 0)
+        mem->prot_write(textAddr, fileData + N_TXTOFF(*execHdr), text.size);
+    if (data.size != 0)
+        mem->prot_write(dataAddr, fileData + N_DATOFF(*execHdr), data.size);
+
+    return true;
+}
+
+
+bool
+AoutObject::loadGlobalSymbols(SymbolTable *symtab)
+{
+    // a.out symbols not supported yet
+    return false;
+}
+
+bool
+AoutObject::loadLocalSymbols(SymbolTable *symtab)
+{
+    // a.out symbols not supported yet
+    return false;
+}