Add in files from merge-bare-iron, get them compiling in FS and SE mode

--HG--
extra : convert_revision : d4e19afda897bc3797868b40469ce2ec7ec7d251

1 files changed, 161 insertions, 0 deletions

diff --git a/src/base/loader/hex_file.cc b/src/base/loader/hex_file.cc
new file mode 100755
index 000000000..1855ebe0c
--- /dev/null
+++ b/src/base/loader/hex_file.cc
@@ -0,0 +1,161 @@
+/*
+ * Copyright (c) 2007 MIPS Technologies, Inc.
+ * 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: Jaidev Patwardhan
+ */
+
+#include <list>
+#include <string>
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "base/cprintf.hh"
+#include "base/loader/hex_file.hh"
+#include "base/loader/symtab.hh"
+
+
+#include "mem/translating_port.hh"
+
+using namespace std;
+/* Load a Hex File into memory.
+   Currently only used with MIPS BARE_IRON mode.
+   A hex file consists of [Address Data] tuples that get directly loaded into
+   physical memory. The address specified is a word address (i.e., to get the byte address, shift left by 2)
+   The data is a full 32-bit hex value.
+*/
+HexFile::HexFile(const string _filename)
+    : filename(_filename)
+{
+  fp = fopen(filename.c_str(),"r");
+  if(fp == NULL)
+    {
+      panic("Unable to open %s\n",filename.c_str());
+    }
+
+}
+
+HexFile::~HexFile()
+{
+}
+
+
+bool
+HexFile::loadSections(Port *memPort, Addr addrMask)
+{
+  char Line[64];
+  Addr MemAddr;
+  uint32_t Data;
+  while(!feof(fp))
+    {
+      fgets(Line,64,fp);
+      parseLine(Line,&MemAddr,&Data);
+      //      printf("Hex:%u\n",Data);
+
+      if(MemAddr != 0)
+        {
+          // Now, write to memory
+          memPort->writeBlob(MemAddr<<2,(uint8_t *)&Data,sizeof(Data));
+        }
+    }
+    return true;
+}
+void HexFile::parseLine(char *Str,Addr *A, uint32_t *D)
+{
+  int i=0;
+  bool Flag = false;
+  *A = 0;
+  *D = 0;
+  int Digit = 0;
+  unsigned Number = 0;
+  /* Skip white spaces */
+  while(Str[i] != '\0' && Str[i]==' ')
+    i++;
+
+  /* Ok, we're at some character...process things */
+  while(Str[i] != '\0')
+    {
+      if(Str[i]>='0' && Str[i]<='9')
+        {
+          Digit=Str[i]-'0';
+        }
+      else if(Str[i]>='a' && Str[i]<='f')
+        {
+          Digit=Str[i]-'a'+10;
+        }
+      else if(Str[i]>='A' && Str[i]<='F')
+        {
+          Digit=Str[i]-'A'+10;
+        }
+      else if(Str[i] == ' ' || Str[i]=='\n')
+        {
+          if(Number == 0)
+            return;
+          if(Flag == false)
+            {
+              *A = Number;
+              Number = 0;
+              Flag = true;
+            }
+          else
+            {
+              *D = Number;
+              return;
+            }
+        }
+      else
+        {
+          // Ok, we've encountered a non-hex character, cannot be a valid line, skip and return 0's
+          *A = 0;
+          *D = 0;
+          return;
+        }
+      Number<<=4;
+      Number+=Digit;
+      i++;
+
+    }
+  if(Flag != true)
+    {
+      *A = 0;
+      *D = 0;
+    }
+  else
+    *D = Number;
+
+}
+
+
+
+void
+HexFile::close()
+{
+  fclose(fp);
+}