Added core dump handler code

Fixed author Doxygen tag

Added licence headers

Moved return value definition to new header

Converted all DOS line endings to Unix

Solution for CPU dependency by using CMAKE_SYSTEM_PROCESSOR cmake variable

CPU specific stuff is implemented in own implementation file for each CPU architecture

Added config file for sysctl. Fixed wrong parameters to open call for lockfile

Added mechanism to overwrite TARGET_CPU_NAME with command line option

Signed-off-by: Alexander Wenzel <Alexander.AW.Wenzel@bmw.de>

1 files changed, 235 insertions, 0 deletions

diff --git a/src/core_dump_handler/dlt_cdh_streamer.c b/src/core_dump_handler/dlt_cdh_streamer.c
new file mode 100644
index 0000000..00b6d04
--- /dev/null
+++ b/src/core_dump_handler/dlt_cdh_streamer.c
@@ -0,0 +1,235 @@
+/*
+ * @licence app begin@
+ * SPDX license identifier: MPL-2.0
+ *
+ * Copyright (C) 2011-2015, BMW AG
+ *
+ * This file is part of GENIVI Project DLT - Diagnostic Log and Trace.
+ *
+ * This Source Code Form is subject to the terms of the
+ * Mozilla Public License (MPL), v. 2.0.
+ * If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * For further information see http://www.genivi.org/.
+ * @licence end@
+ */
+
+/*!
+ * \author Magneti Marelli http://www.magnetimarelli.com
+ * \author Lutz Helwing <lutz_helwing@mentor.com>
+ *
+ * \copyright Copyright © 2011-2015 BMW AG. \n
+ * License MPL-2.0: Mozilla Public License version 2.0 http://mozilla.org/MPL/2.0/.
+ *
+ * \file dlt_cdh_streamer.c
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <syslog.h>
+#include "dlt_cdh_streamer.h"
+
+#define Z_CHUNK_SZ      1024*128
+#define Z_MODE_STR      "wb1"
+
+cdh_status_t stream_init(file_streamer_t* p_fs, const char* p_src_fname, const char* p_dst_fname)
+{
+    if (p_fs == NULL)
+    {
+        syslog(LOG_ERR, "Internal pointer error in 'stream_init'");
+        return CDH_NOK;
+    }
+
+    memset(p_fs, 0, sizeof(file_streamer_t));
+
+    /* Allow to not save the coredump */
+    if (p_dst_fname == NULL)
+    {
+        p_fs->gz_dst_file = 0;
+    }
+    else
+    {
+        // Create output file
+        p_fs->gz_dst_file = gzopen(p_dst_fname, Z_MODE_STR);
+        if (p_fs->gz_dst_file == Z_NULL)
+        {
+            //return CDH_NOK;
+            syslog(LOG_ERR, "Cannot open output filename <%s>. %s", p_dst_fname, strerror(errno));
+            p_fs->gz_dst_file = 0;
+
+        }
+    }
+
+    if (p_fs->gz_dst_file == Z_NULL)
+        syslog(LOG_WARNING, "The coredump will be processed, but not written");
+
+    // Open input file
+    if (p_src_fname == NULL)
+    {
+        p_fs->stream = stdin;
+    }
+    else
+    {
+        if ((p_fs->stream = fopen(p_src_fname, "rb")) == NULL)
+        {
+            syslog(LOG_ERR, "Cannot open filename <%s>. %s", p_src_fname, strerror(errno));
+            return CDH_NOK;
+        }
+    }
+
+    // Allocate read buffer
+    if ((p_fs->read_buf = (unsigned char*) malloc(Z_CHUNK_SZ)) == NULL)
+    {
+        syslog(LOG_ERR, "Cannot allocate %d bytes for read buffer. %s", Z_CHUNK_SZ, strerror(errno));
+        return CDH_NOK;
+    }
+
+    return CDH_OK;
+}
+
+cdh_status_t stream_close(file_streamer_t* p_fs)
+{
+    if (p_fs == NULL)
+    {
+        syslog(LOG_ERR, "Internal pointer error in 'stream_close'");
+        return CDH_NOK;
+    }
+
+    if (p_fs->gz_dst_file != NULL)
+    {
+        gzflush(p_fs->gz_dst_file, Z_FINISH);
+        gzclose(p_fs->gz_dst_file);
+        p_fs->gz_dst_file = NULL;
+    }
+
+    if (p_fs->stream != NULL)
+    {
+        fclose(p_fs->stream);
+        p_fs->stream = NULL;
+    }
+
+    if (p_fs->read_buf != NULL)
+    {
+        free(p_fs->read_buf);
+        p_fs->read_buf = NULL;
+    }
+
+    return CDH_OK;
+}
+
+cdh_status_t stream_read(file_streamer_t* p_fs, void* p_buf, unsigned int p_size)
+{
+    unsigned int byte_read = 0;
+
+    if (p_fs == NULL)
+    {
+        syslog(LOG_ERR, "Internal pointer error in 'stream_read'");
+        return CDH_NOK;
+    }
+
+    if (p_buf == NULL)
+    {
+        syslog(LOG_ERR, "Internal buffer pointer error in 'stream_read'");
+        return CDH_NOK;
+    }
+
+    if ((byte_read = fread(p_buf, 1, p_size, p_fs->stream)) != p_size)
+    {
+        syslog(LOG_WARNING, "Cannot read %d bytes from src. %s", p_size, strerror(errno));
+        return CDH_NOK;
+    }
+
+    p_fs->offset += byte_read;
+
+    if (p_fs->gz_dst_file != NULL)
+        gzwrite(p_fs->gz_dst_file, p_buf, byte_read);
+
+    return CDH_OK;
+}
+
+int stream_finish(file_streamer_t* p_fs)
+{
+    if (p_fs == NULL || p_fs->stream == NULL)
+    {
+        syslog(LOG_ERR, "Internal pointer error in 'stream_move_ahead'");
+        return CDH_NOK;
+    }
+
+    while (!feof(p_fs->stream))
+    {
+        size_t read_bytes = fread(p_fs->read_buf, 1, Z_CHUNK_SZ, p_fs->stream);
+
+        if (p_fs->gz_dst_file != NULL)
+            gzwrite(p_fs->gz_dst_file, p_fs->read_buf, read_bytes);
+
+        p_fs->offset += read_bytes;
+        if (ferror(p_fs->stream))
+        {
+            syslog(LOG_WARNING, "Error reading from the src stream: %s", strerror(errno));
+            return CDH_NOK;
+        }
+    }
+
+    return CDH_OK;
+}
+
+int stream_move_to_offest(file_streamer_t* p_fs, unsigned int p_offset)
+{
+    int bytes_to_read = 0;
+
+    if (p_fs == NULL)
+    {
+        syslog(LOG_ERR, "Internal pointer error in 'stream_move_to_offest'");
+        return CDH_NOK;
+    }
+
+    bytes_to_read = p_offset - p_fs->offset;
+
+    return stream_move_ahead(p_fs, bytes_to_read);
+}
+
+int stream_move_ahead(file_streamer_t* p_fs, unsigned int p_nbbytes)
+{
+    int bytes_to_read = p_nbbytes;
+
+    if (p_fs == NULL)
+    {
+        syslog(LOG_ERR, "Internal pointer error in 'stream_move_ahead'");
+        return CDH_NOK;
+    }
+
+    while (bytes_to_read > 0)
+    {
+        size_t chunk_size = bytes_to_read > Z_CHUNK_SZ ? Z_CHUNK_SZ : bytes_to_read;
+        size_t read_bytes = fread(p_fs->read_buf, 1, chunk_size, p_fs->stream);
+
+        if (read_bytes != chunk_size)
+        {
+            syslog(LOG_WARNING, "Cannot move ahead by %d bytes from src. Read %lu bytes", p_nbbytes, read_bytes);
+            return CDH_NOK;
+        }
+
+        if (p_fs->gz_dst_file != 0)
+            gzwrite(p_fs->gz_dst_file, p_fs->read_buf, chunk_size);
+
+        bytes_to_read -= chunk_size;
+    }
+
+    p_fs->offset += p_nbbytes;
+
+    return CDH_OK;
+}
+
+unsigned int stream_get_offset(file_streamer_t* p_fs)
+{
+    if (p_fs == NULL)
+    {
+        syslog(LOG_ERR, "Internal pointer error in 'stream_get_offset'");
+        return CDH_NOK;
+    }
+
+    return p_fs->offset;
+}