summaryrefslogtreecommitdiffstats
path: root/src/plugins/CCpp.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/plugins/CCpp.cpp')
-rw-r--r--src/plugins/CCpp.cpp280
1 files changed, 0 insertions, 280 deletions
diff --git a/src/plugins/CCpp.cpp b/src/plugins/CCpp.cpp
deleted file mode 100644
index e6807ea7..00000000
--- a/src/plugins/CCpp.cpp
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- CCpp.cpp
-
- Copyright (C) 2009 Zdenek Prikryl (zprikryl@redhat.com)
- Copyright (C) 2009 RedHat inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-#include <set>
-#include "abrtlib.h"
-#include "CCpp.h"
-#include "abrt_exception.h"
-#include "comm_layer_inner.h"
-
-using namespace std;
-
-#define CORE_PATTERN_IFACE "/proc/sys/kernel/core_pattern"
-#define CORE_PATTERN "|"CCPP_HOOK_PATH" "DEBUG_DUMPS_DIR" %p %s %u %c"
-#define CORE_PIPE_LIMIT_IFACE "/proc/sys/kernel/core_pipe_limit"
-/* core_pipe_limit specifies how many dump_helpers might run at the same time
- * 0 - means unlimited, but it's not guaranteed that /proc/<pid> of crashing
- * process will be available for dump_helper
- * 4 - means that 4 dump_helpers can run at the same time (the rest will also
- * run, but they will fail to read /proc/<pid>)
- * This should be enough for ABRT, we can miss some crashes, but what are
- * the odds that more processes crash at the same time?
- * The value of 4 has been recommended by nhorman.
- */
-#define CORE_PIPE_LIMIT "4"
-
-#define DEBUGINFO_CACHE_DIR LOCALSTATEDIR"/cache/abrt-di"
-
-CAnalyzerCCpp::CAnalyzerCCpp() :
- m_bBacktrace(true),
- m_bBacktraceRemotes(false),
- m_bMemoryMap(false),
- m_bInstallDebugInfo(true),
- m_nDebugInfoCacheMB(4000),
- m_nGdbTimeoutSec(60)
-{}
-
-/*
- this is just a workaround until kernel changes it's behavior
- when handling pipes in core_pattern
-*/
-#ifdef HOSTILE_KERNEL
-#define CORE_SIZE_PATTERN "Max core file size=1:unlimited"
-static int isdigit_str(char *str)
-{
- do {
- if (*str < '0' || *str > '9')
- return 0;
- } while (*++str);
- return 1;
-}
-
-static int set_limits()
-{
- DIR *dir = opendir("/proc");
- if (!dir) {
- /* this shouldn't fail, but to be safe.. */
- return 1;
- }
-
- struct dirent *ent;
- while ((ent = readdir(dir)) != NULL) {
- if (!isdigit_str(ent->d_name))
- continue;
-
- char limits_name[sizeof("/proc/%s/limits") + sizeof(long)*3];
- snprintf(limits_name, sizeof(limits_name), "/proc/%s/limits", ent->d_name);
- FILE *limits_fp = fopen(limits_name, "r");
- if (!limits_fp) {
- break;
- }
-
- char line[128];
- char *ulimit_c = NULL;
- while (1) {
- if (fgets(line, sizeof(line)-1, limits_fp) == NULL)
- break;
- if (strncmp(line, "Max core file size", sizeof("Max core file size")-1) == 0) {
- ulimit_c = skip_whitespace(line + sizeof("Max core file size")-1);
- skip_non_whitespace(ulimit_c)[0] = '\0';
- break;
- }
- }
- fclose(limits_fp);
- if (!ulimit_c || ulimit_c[0] != '0' || ulimit_c[1] != '\0') {
- /*process has nonzero ulimit -c, so need to modify it*/
- continue;
- }
- /* echo -n 'Max core file size=1:unlimited' >/proc/PID/limits */
- int fd = open(limits_name, O_WRONLY);
- if (fd >= 0) {
- errno = 0;
- /*full_*/
- ssize_t n = write(fd, CORE_SIZE_PATTERN, sizeof(CORE_SIZE_PATTERN)-1);
- if (n < sizeof(CORE_SIZE_PATTERN)-1)
- log("warning: can't write core_size limit to: %s", limits_name);
- close(fd);
- }
- else
- {
- log("warning: can't open %s for writing", limits_name);
- }
- }
- closedir(dir);
- return 0;
-}
-#endif /* HOSTILE_KERNEL */
-
-void CAnalyzerCCpp::Init()
-{
- FILE *fp = fopen(CORE_PATTERN_IFACE, "r");
- if (fp)
- {
- char line[PATH_MAX];
- if (fgets(line, sizeof(line), fp))
- m_sOldCorePattern = line;
- fclose(fp);
- }
- if (m_sOldCorePattern[0] == '|')
- {
- if (m_sOldCorePattern == CORE_PATTERN)
- {
- log("warning: %s already contains %s, "
- "did abrt daemon crash recently?",
- CORE_PATTERN_IFACE, CORE_PATTERN);
- /* There is no point in "restoring" CORE_PATTERN_IFACE
- * to CORE_PATTERN on exit. Will restore to a default value:
- */
- m_sOldCorePattern = "core";
- } else {
- log("warning: %s was already set to run a crash analyser (%s), "
- "abrt may interfere with it",
- CORE_PATTERN_IFACE, CORE_PATTERN);
- }
- }
-#ifdef HOSTILE_KERNEL
- if (set_limits() != 0)
- log("warning: failed to set core_size limit, ABRT won't detect crashes in"
- "compiled apps");
-#endif
-
- fp = fopen(CORE_PATTERN_IFACE, "w");
- if (fp)
- {
- fputs(CORE_PATTERN, fp);
- fclose(fp);
- }
-
- /* read the core_pipe_limit and change it if it's == 0
- otherwise the abrt-hook-ccpp won't be able to read /proc/<pid>
- of the crashing process
- */
- fp = fopen(CORE_PIPE_LIMIT_IFACE, "r");
- if (fp)
- {
- /* we care only about the first char, if it's
- * not '0' then we don't have to change it,
- * because it means that it's already != 0
- */
- char pipe_limit[2];
- if (!fgets(pipe_limit, sizeof(pipe_limit), fp))
- pipe_limit[0] = '1'; /* not 0 */
- fclose(fp);
- if (pipe_limit[0] == '0')
- {
- fp = fopen(CORE_PIPE_LIMIT_IFACE, "w");
- if (fp)
- {
- fputs(CORE_PIPE_LIMIT, fp);
- fclose(fp);
- }
- else
- {
- log("warning: failed to set core_pipe_limit, ABRT won't detect"
- "crashes in compiled apps if kernel > 2.6.31");
- }
- }
- }
-}
-
-void CAnalyzerCCpp::DeInit()
-{
- /* no need to restore the core_pipe_limit, because it's only used
- when there is s pipe in core_pattern
- */
- FILE *fp = fopen(CORE_PATTERN_IFACE, "w");
- if (fp)
- {
- fputs(m_sOldCorePattern.c_str(), fp);
- fclose(fp);
- }
-}
-
-void CAnalyzerCCpp::SetSettings(const map_plugin_settings_t& pSettings)
-{
- m_pSettings = pSettings;
-
- map_plugin_settings_t::const_iterator end = pSettings.end();
- map_plugin_settings_t::const_iterator it;
- it = pSettings.find("Backtrace");
- if (it != end)
- {
- m_bBacktrace = string_to_bool(it->second.c_str());
- }
- it = pSettings.find("BacktraceRemotes");
- if (it != end)
- {
- m_bBacktraceRemotes = string_to_bool(it->second.c_str());
- }
- it = pSettings.find("MemoryMap");
- if (it != end)
- {
- m_bMemoryMap = string_to_bool(it->second.c_str());
- }
- it = pSettings.find("DebugInfo");
- if (it != end)
- {
- m_sDebugInfo = it->second;
- }
- it = pSettings.find("DebugInfoCacheMB");
- if (it != end)
- {
- m_nDebugInfoCacheMB = xatou(it->second.c_str());
- }
- it = pSettings.find("GdbTimeoutSec");
- if (it != end)
- {
- m_nGdbTimeoutSec = xatoi_u(it->second.c_str());
- }
- it = pSettings.find("InstallDebugInfo");
- if (it == end) //compat, remove after 0.0.11
- it = pSettings.find("InstallDebuginfo");
- if (it != end)
- {
- m_bInstallDebugInfo = string_to_bool(it->second.c_str());
- }
- m_sDebugInfoDirs = DEBUGINFO_CACHE_DIR;
- it = pSettings.find("ReadonlyLocalDebugInfoDirs");
- if (it != end)
- {
- m_sDebugInfoDirs += ':';
- m_sDebugInfoDirs += it->second;
- }
-}
-
-//ok to delete?
-//const map_plugin_settings_t& CAnalyzerCCpp::GetSettings()
-//{
-// m_pSettings["MemoryMap"] = m_bMemoryMap ? "yes" : "no";
-// m_pSettings["DebugInfo"] = m_sDebugInfo;
-// m_pSettings["DebugInfoCacheMB"] = to_string(m_nDebugInfoCacheMB);
-// m_pSettings["InstallDebugInfo"] = m_bInstallDebugInfo ? "yes" : "no";
-//
-// return m_pSettings;
-//}
-
-PLUGIN_INFO(ANALYZER,
- CAnalyzerCCpp,
- "CCpp",
- "0.0.1",
- _("Analyzes crashes in C/C++ programs"),
- "zprikryl@redhat.com",
- "https://fedorahosted.org/abrt/wiki",
- "");
generated by cgit (git 2.34.1) at 2026-01-11 02:12:52 +0000