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, 202 insertions, 0 deletions

diff --git a/src/core_dump_handler/dlt_cdh_coredump.c b/src/core_dump_handler/dlt_cdh_coredump.c
new file mode 100644
index 0000000..612174b
--- /dev/null
+++ b/src/core_dump_handler/dlt_cdh_coredump.c
@@ -0,0 +1,202 @@
+/*
+ * @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_coredump.c
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <fcntl.h>
+#include <syslog.h>
+#include <errno.h>
+
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+
+#include "dlt_cdh.h"
+
+cdh_status_t read_elf_headers(proc_info_t* p_proc)
+{
+    int phnum = 0;
+
+    // Read ELF header 
+    stream_read(&p_proc->streamer, &p_proc->m_Ehdr, sizeof(p_proc->m_Ehdr));
+
+    // Read until PROG position
+    stream_move_to_offest(&p_proc->streamer, p_proc->m_Ehdr.e_phoff);
+
+    // Read and store all program headers
+    p_proc->m_pPhdr = (ELF_Phdr*) malloc(sizeof(ELF_Phdr) * p_proc->m_Ehdr.e_phnum);
+    if (p_proc->m_pPhdr == NULL)
+    {
+        syslog(LOG_ERR, "Cannot allocate Phdr memory (%d headers)", p_proc->m_Ehdr.e_phnum);
+        return CDH_NOK;
+    }
+
+    for (phnum = 0; phnum < p_proc->m_Ehdr.e_phnum; phnum++)
+    {
+        // Read Programm header 
+        stream_read(&p_proc->streamer, &p_proc->m_pPhdr[phnum], sizeof(ELF_Phdr));
+    }
+
+    return CDH_OK;
+}
+
+int getNotePageIndex(proc_info_t* p_proc)
+{
+    int i = 0;
+
+    // Search PT_NOTE section
+    for (i = 0; i < p_proc->m_Ehdr.e_phnum; i++)
+    {
+        syslog(LOG_INFO, "==Note section prog_note:%d type:0x%X offset:0x%X size:0x%X (%dbytes)",
+                        i,
+                        p_proc->m_pPhdr[i].p_type,
+                        p_proc->m_pPhdr[i].p_offset,
+                        p_proc->m_pPhdr[i].p_filesz,
+                        p_proc->m_pPhdr[i].p_filesz);
+
+        if (p_proc->m_pPhdr[i].p_type == PT_NOTE)
+            break;
+    }
+
+    return i == p_proc->m_Ehdr.e_phnum ? CDH_NOK : i;
+}
+
+cdh_status_t read_notes(proc_info_t* p_proc)
+{
+    int prog_note = getNotePageIndex(p_proc);
+//    p_proc->m_note_page_size = 0;
+    p_proc->m_Nhdr = NULL;
+
+    // note page not found, abort
+    if (prog_note < 0)
+    {
+        syslog(LOG_ERR, "Cannot find note header page index");
+        return CDH_NOK;
+    }
+
+    // Move to NOTE header position
+    if (stream_move_to_offest(&p_proc->streamer, p_proc->m_pPhdr[prog_note].p_offset) != CDH_OK)
+    {
+        syslog(LOG_ERR, "Cannot move to note header");
+        return CDH_NOK;
+    }
+
+    if ((p_proc->m_Nhdr = (char*) malloc(p_proc->m_pPhdr[prog_note].p_filesz)) == NULL)
+    {
+        syslog(LOG_ERR, "Cannot allocate Nhdr memory (note size %d bytes)", p_proc->m_pPhdr[prog_note].p_filesz);
+        return CDH_NOK;
+    }
+
+    if (stream_read(&p_proc->streamer, p_proc->m_Nhdr, p_proc->m_pPhdr[prog_note].p_filesz) != CDH_OK)
+    {
+        syslog(LOG_ERR, "Cannot read note header");
+        return CDH_NOK;
+    }
+
+    p_proc->m_note_page_size = p_proc->m_pPhdr[prog_note].p_filesz;
+
+    return CDH_OK;
+}
+
+cdh_status_t init_coredump(proc_info_t* p_proc)
+{
+    if (p_proc == NULL)
+        return CDH_NOK;
+
+    if (p_proc->can_create_coredump)
+    {
+        char l_dst_filename[CORE_MAX_FILENAME_LENGTH];
+
+        snprintf(l_dst_filename, sizeof(l_dst_filename), CORE_FILE_PATTERN,
+        CORE_TMP_DIRECTORY,
+                        p_proc->timestamp,
+                        p_proc->name,
+                        p_proc->pid);
+
+        stream_init(&p_proc->streamer, 0, l_dst_filename);
+    }
+    else
+    {
+        stream_init(&p_proc->streamer, 0, NULL);
+    }
+
+    return CDH_OK;
+}
+
+cdh_status_t close_coredump(proc_info_t* p_proc)
+{
+    stream_close(&p_proc->streamer);
+
+    return CDH_OK;
+}
+
+cdh_status_t treat_coredump(proc_info_t* p_proc)
+{
+    cdh_status_t ret = CDH_OK;
+
+    // open src and dest files, allocate read buffer
+    if (init_coredump(p_proc) != CDH_OK)
+    {
+        syslog(LOG_ERR, "cannot init coredump system");
+        ret = CDH_NOK;
+        goto finished;
+    }
+
+    if (read_elf_headers(p_proc) == CDH_OK)
+    {
+        // TODO: No NOTES here leads to crash elsewhere!!! dlt_cdh_crashid.c: around line 76
+        if (read_notes(p_proc) != CDH_OK)
+        {
+            syslog(LOG_ERR, "cannot read NOTES");
+            ret = CDH_NOK;
+            goto finished;
+        }
+    }
+    else
+    {
+        if (read_elf_headers(p_proc) != CDH_OK)
+        {
+            syslog(LOG_ERR, "cannot read ELF header");
+            ret = CDH_NOK;
+            goto finished;
+        }
+    }
+
+    finished:
+    // In all cases, we try to finish to read/compress the coredump until the end
+    if (stream_finish(&p_proc->streamer) != CDH_OK)
+        syslog(LOG_ERR, "cannot finish coredump compression");
+
+    // In all cases, let's close the files
+    if (close_coredump(p_proc) != CDH_OK)
+        syslog(LOG_ERR, "cannot close coredump system");
+
+    return ret;
+}
+