Changeset 41316 in vbox

Timestamp:

May 15, 2012 2:44:36 PM (13 years ago)

Author:

vboxsync

Message:

A few minutes of code in between other things.

File:

• trunk/src/VBox/Devices/PC/BIOS-new/MakeDebianBiosAssembly.cpp (modified) (4 diffs)

trunk/src/VBox/Devices/PC/BIOS-new/MakeDebianBiosAssembly.cpp

@@ -1 +1 @@
 /* $Id$ */
 /** @file
- * MakeDebianBiosAssembly - Generate Assembly Source for Debian Minded Distros.
+ * MakeDebianBiosAssembly - Generate Assembly Source for Debian-minded Distros.
  */
 
@@ -20 +20 @@
 *   Header Files                                                               *
 *******************************************************************************/
+#include <iprt/buildconfig.h>
+#include <iprt/file.h>
 #include <iprt/getopt.h>
 #include <iprt/initterm.h>
@@ -31 +33 @@
 *   Global Variables                                                           *
 *******************************************************************************/
-
-
+static unsigned g_cVerbose = 1 /*0*/;
+/** Pointer to the BIOS image. */
+static uint8_t const   *g_pbImg;
+/** The size of the BIOS image. */
+static size_t           g_cbImg;
+
+
+
+static RTEXITCODE DisassembleBiosImage(void)
+{
+    return RTMsgErrorExit(RTEXITCODE_FAILURE, "DisassembleBiosImage is not implemented");
+}
+
+static RTEXITCODE OpenOutputFile(const char *pszOutput)
+{
+    return RTMsgErrorExit(RTEXITCODE_FAILURE, "OpenOutputFile is not implemented");
+}
+
+
+static int SkipEmptyLines(PRTSTREAM hStrm, uint32_t *piLine)
+{
+    for (;;)
+    {
+        char szLine[16384];
+        int rc = RTStrmGetLine(hStrm, szLine, sizeof(szLine));
+        if (RT_FAILURE(rc))
+        {
+            RTMsgError("Error read map-file header: %Rrc", rc);
+            return rc;
+        }
+
+        *piLine += 1;
+        const char *psz = RTStrStrip(szLine);
+        if (*psz)
+            return VINF_SUCCESS;
+    }
+}
+
+
+static int SkipNonEmptyLines(PRTSTREAM hStrm, uint32_t *piLine)
+{
+    for (;;)
+    {
+        char szLine[16384];
+        int rc = RTStrmGetLine(hStrm, szLine, sizeof(szLine));
+        if (RT_FAILURE(rc))
+        {
+            RTMsgError("Error read map-file header: %Rrc", rc);
+            return rc;
+        }
+
+        *piLine += 1;
+        const char *psz = RTStrStrip(szLine);
+        if (!*psz)
+            return VINF_SUCCESS;
+    }
+}
+
+static RTEXITCODE ParseMapFileInner(const char *pszBiosMap, PRTSTREAM hStrm)
+{
+    uint32_t    iLine = 1;
+    char        szLine[16384];
+    const char *psz;
+
+    /*
+     * Read the header.
+     */
+    int rc = RTStrmGetLine(hStrm, szLine, sizeof(szLine));
+    if (RT_FAILURE(rc))
+        return RTMsgErrorExit(RTEXITCODE_FAILURE, "Error read map-file header: %Rrc", rc);
+    if (strncmp(szLine, RT_STR_TUPLE("Open Watcom Linker Version")))
+        return RTMsgErrorExit(RTEXITCODE_FAILURE, "Unexpected map-file header: '%s'", szLine);
+    rc = SkipNonEmptyLines(hStrm, &iLine);
+
+
+
+    return RTMsgErrorExit(RTEXITCODE_FAILURE, "ParseMapFileInner is not fully implemented");
+}
+
+
+
+/**
+ * Parses the linker map file for the BIOS.
+ *
+ * This is generated by the Watcom linker.
+ *
+ * @returns RTEXITCODE_SUCCESS or RTEXITCODE_FAILURE+msg.
+ * @param   pszBiosMap          Path to the map file.
+ */
+static RTEXITCODE ParseMapFile(const char *pszBiosMap)
+{
+    PRTSTREAM hStrm;
+    int rc = RTStrmOpen(pszBiosMap, "rt", &hStrm);
+    if (RT_FAILURE(rc))
+        return RTMsgErrorExit(RTEXITCODE_FAILURE, "Error opening '%s': %Rrc", pszBiosMap, rc);
+    RTEXITCODE rcExit = ParseMapFileInner(pszBiosMap, hStrm);
+    RTStrmClose(hStrm);
+    return rcExit;
+}
+
+
+/**
+ * Reads the BIOS image into memory (g_pbImg and g_cbImg).
+ *
+ * @returns RTEXITCODE_SUCCESS or RTEXITCODE_FAILURE+msg.
+ * @param   pszBiosImg          Path to the image file.
+ */
+static RTEXITCODE ReadBiosImage(const char *pszBiosImg)
+{
+    void  *pvImg;
+    size_t cbImg;
+    int rc = RTFileReadAll(pszBiosImg, &pvImg, &cbImg);
+    if (RT_FAILURE(rc))
+        return RTMsgErrorExit(RTEXITCODE_FAILURE, "Error reading '%s': %Rrc", pszBiosImg, rc);
+    if (cbImg != _64K)
+    {
+        RTFileReadAllFree(pvImg, cbImg);
+        return RTMsgErrorExit(RTEXITCODE_FAILURE, "The BIOS image %u bytes intead of 64KB", cbImg);
+    }
+
+    g_pbImg = (uint8_t *)pvImg;
+    g_cbImg = cbImg;
+    return RTEXITCODE_SUCCESS;
+}
 
 
@@ -41 +165 @@
         return RTMsgInitFailure(rc);
 
-    RTMsgError("Not implemented\n");
-    return RTEXITCODE_FAILURE;
-}
-
+    /*
+     * Option config.
+     */
+    static RTGETOPTDEF const s_aOpts[] =
+    {
+        { "--bios-image",               'i',                    RTGETOPT_REQ_STRING },
+        { "--bios-map",                 'm',                    RTGETOPT_REQ_STRING },
+        { "--output",                   'o',                    RTGETOPT_REQ_STRING },
+        { "--verbose",                  'v',                    RTGETOPT_REQ_NOTHING },
+        { "--quiet",                    'q',                    RTGETOPT_REQ_NOTHING },
+    };
+
+    const char *pszBiosMap = NULL;
+    const char *pszBiosImg = NULL;
+    const char *pszOutput  = NULL;
+
+    RTGETOPTUNION   ValueUnion;
+    RTGETOPTSTATE   GetOptState;
+    rc = RTGetOptInit(&GetOptState, argc, argv, &s_aOpts[0], RT_ELEMENTS(s_aOpts), 1, RTGETOPTINIT_FLAGS_OPTS_FIRST);
+    AssertReleaseRCReturn(rc, RTEXITCODE_FAILURE);
+
+    /*
+     * Process the options.
+     */
+    while ((rc = RTGetOpt(&GetOptState, &ValueUnion)) != 0)
+    {
+        switch (rc)
+        {
+            case 'i':
+                if (pszBiosImg)
+                    return RTMsgErrorExit(RTEXITCODE_SYNTAX, "--bios-image is given more than once");
+                pszBiosImg = ValueUnion.psz;
+                break;
+
+            case 'm':
+                if (pszBiosMap)
+                    return RTMsgErrorExit(RTEXITCODE_SYNTAX, "--bios-map is given more than once");
+                pszBiosMap = ValueUnion.psz;
+                break;
+
+            case 'o':
+                if (pszOutput)
+                    return RTMsgErrorExit(RTEXITCODE_SYNTAX, "--output is given more than once");
+                pszOutput = ValueUnion.psz;
+                break;
+
+            case 'v':
+                g_cVerbose++;
+                break;
+
+            case 'q':
+                g_cVerbose = 0;
+                break;
+
+            case 'H':
+                RTPrintf("usage: %Rbn --bios-image <file.img> --bios-map <file.map> [--output <file.asm>]\n",
+                         argv[0]);
+                return RTEXITCODE_SUCCESS;
+
+            case 'V':
+            {
+                /* The following is assuming that svn does it's job here. */
+                RTPrintf("r%u\n", RTBldCfgRevision());
+                return RTEXITCODE_SUCCESS;
+            }
+
+            default:
+                return RTGetOptPrintError(rc, &ValueUnion);
+        }
+    }
+
+    /*
+     * Got it all?
+     */
+    if (!pszBiosImg)
+        return RTMsgErrorExit(RTEXITCODE_SYNTAX, "--bios-image is required");
+    if (!pszBiosMap)
+        return RTMsgErrorExit(RTEXITCODE_SYNTAX, "--bios-map is required");
+
+    /*
+     * Do the job.
+     */
+    RTEXITCODE rcExit;
+    rcExit = ReadBiosImage(pszBiosImg);
+    if (rcExit == RTEXITCODE_SUCCESS)
+        rcExit = ParseMapFile(pszBiosMap);
+    if (rcExit == RTEXITCODE_SUCCESS)
+        rcExit = OpenOutputFile(pszOutput);
+    if (rcExit == RTEXITCODE_SUCCESS)
+        rcExit = DisassembleBiosImage();
+
+    return rcExit;
+}
+