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trccomponent.c
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/*******************************************************************************
* Copyright IBM Corp. and others 1998
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
* or the Apache License, Version 2.0 which accompanies this distribution and
* is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following
* Secondary Licenses when the conditions for such availability set
* forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
* General Public License, version 2 with the GNU Classpath
* Exception [1] and GNU General Public License, version 2 with the
* OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] https://openjdk.org/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
*******************************************************************************/
/* _GNU_SOURCE forces GLIBC_2.0 sscanf/vsscanf/fscanf for RHEL5 compatibility */
#if defined(LINUX) && !defined(J9ZTPF)
#define _GNU_SOURCE
#endif /* defined(LINUX) && !defined(J9ZTPF) */
#include <limits.h>
#include <string.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdlib.h>
#include <sys/types.h>
#include <time.h>
#include <assert.h>
#include <errno.h>
#include <ctype.h>
#include "ute_core.h"
#include "rastrace_internal.h"
#include "rastrace_external.h"
#include "omrutil.h"
static const char UT_MISSING_TRACE_FORMAT[] = " Tracepoint format not in dat file";
#define MAX_QUALIFIED_NAME_LENGTH 16
omr_error_t
initializeComponentData(UtComponentData **componentDataPtr, UtModuleInfo *moduleInfo, const char *componentName)
{
PORT_ACCESS_FROM_PORT(UT_GLOBAL(portLibrary));
UtComponentData *componentData = (UtComponentData *)j9mem_allocate_memory(sizeof(UtComponentData), OMRMEM_CATEGORY_TRACE);
UT_DBGOUT(2, ("<UT> initializeComponentData: %s\n", componentName));
if (componentData == NULL) {
UT_DBGOUT(1, ("<UT> Unable to allocate componentData for %s\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
initHeader(&componentData->header, UT_TRACE_COMPONENT_DATA, sizeof(UtComponentData));
componentData->componentName = (char *)j9mem_allocate_memory(strlen(componentName) + 1, OMRMEM_CATEGORY_TRACE);
if (componentData->componentName == NULL) {
UT_DBGOUT(1, ("<UT> Unable to allocate componentData's name field for %s\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
strcpy(componentData->componentName, componentName);
/* Setup the fully qualified name here as when we come to print out trace
* counters the modules may have been freed already.
*/
if (moduleInfo->traceVersionInfo->traceVersion >= 7 && moduleInfo->containerModule != NULL) {
char qualifiedName[MAX_QUALIFIED_NAME_LENGTH];
j9str_printf(qualifiedName, MAX_QUALIFIED_NAME_LENGTH, "%s(%s)", moduleInfo->name, moduleInfo->containerModule->name);
componentData->qualifiedComponentName = (char *)j9mem_allocate_memory(strlen(qualifiedName) + 1, OMRMEM_CATEGORY_TRACE);
if (componentData->qualifiedComponentName == NULL) {
UT_DBGOUT(1, ("<UT> Unable to allocate componentData's name field for %s\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
strcpy(componentData->qualifiedComponentName, qualifiedName);
} else {
componentData->qualifiedComponentName = componentData->componentName;
}
if (moduleInfo->formatStringsFileName != NULL) {
componentData->formatStringsFileName = (char *)j9mem_allocate_memory(strlen(moduleInfo->formatStringsFileName) + 1, OMRMEM_CATEGORY_TRACE);
if (componentData->formatStringsFileName == NULL) {
UT_DBGOUT(1, ("<UT> Unable to allocate componentData's format strings file name field for %s\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
strcpy(componentData->formatStringsFileName, moduleInfo->formatStringsFileName);
} else {
componentData->formatStringsFileName = NULL;
}
componentData->moduleInfo = moduleInfo;
componentData->tracepointCount = moduleInfo->count;
componentData->numFormats = 0;
componentData->tracepointFormattingStrings = NULL;
componentData->tracepointcounters = NULL;
componentData->alreadyfailedtoloaddetails = 0;
componentData->next = NULL;
componentData->prev = NULL;
*componentDataPtr = componentData;
UT_DBGOUT(2, ("<UT> initializeComponentData complete: %s\n", componentName));
return OMR_ERROR_NONE;
}
void
freeComponentData(UtComponentData *componentDataPtr)
{
int numFormats = 0;
int i = 0;
PORT_ACCESS_FROM_PORT(UT_GLOBAL(portLibrary));
UT_DBGOUT(2, ("<UT> freeComponentData: %s\n", componentDataPtr->componentName));
numFormats = componentDataPtr->numFormats;
/* free any storage allocated for the format strings and names */
if (componentDataPtr->tracepointFormattingStrings != NULL) {
for (i = 0; i < numFormats; i++) {
char *tempString = componentDataPtr->tracepointFormattingStrings[i];
if ((tempString != NULL) && (tempString != UT_MISSING_TRACE_FORMAT)) {
j9mem_free_memory(tempString);
}
}
j9mem_free_memory(componentDataPtr->tracepointFormattingStrings);
}
if (componentDataPtr->tracepointcounters != NULL) {
j9mem_free_memory(componentDataPtr->tracepointcounters);
}
if ((componentDataPtr->qualifiedComponentName != componentDataPtr->componentName) && (componentDataPtr->qualifiedComponentName != NULL)) {
j9mem_free_memory(componentDataPtr->qualifiedComponentName);
}
if (componentDataPtr->componentName != NULL) {
j9mem_free_memory(componentDataPtr->componentName);
}
if (componentDataPtr->formatStringsFileName != NULL) {
j9mem_free_memory(componentDataPtr->formatStringsFileName);
}
j9mem_free_memory(componentDataPtr);
UT_DBGOUT(2, ("<UT> freeComponentData completed\n"));
return;
}
omr_error_t
initializeComponentList(UtComponentList **componentListPtr)
{
PORT_ACCESS_FROM_PORT(UT_GLOBAL(portLibrary));
UtComponentList *componentList = (UtComponentList *)j9mem_allocate_memory(sizeof(UtComponentList), OMRMEM_CATEGORY_TRACE);
UT_DBGOUT(2, ("<UT> initializeComponentList: %p\n", componentListPtr));
if (componentList == NULL) {
UT_DBGOUT(1, ("<UT> Unable to allocate component list\n"));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
initHeader(&componentList->header, UT_TRACE_COMPONENT_LIST, sizeof(UtComponentList));
componentList->head = NULL;
componentList->deferredConfigInfoHead = NULL;
*componentListPtr = componentList;
UT_DBGOUT(2, ("<UT> initializeComponentList: %p completed\n", componentListPtr));
return OMR_ERROR_NONE;
}
omr_error_t
freeComponentList(UtComponentList *componentList)
{
UtComponentData *compData = componentList->head;
UtDeferredConfigInfo *configInfo = componentList->deferredConfigInfoHead;
PORT_ACCESS_FROM_PORT(UT_GLOBAL(portLibrary));
UT_DBGOUT(2, ("<UT> freeComponentList: %p\n", componentList));
while (compData != NULL) {
UtComponentData *tempCD = compData->next;
UT_DBGOUT(2, ("<UT> freeComponentList: freeing CI [%p] from [%p]\n", compData, componentList));
freeComponentData(compData);
compData = tempCD;
}
while (configInfo != NULL) {
UtDeferredConfigInfo *tempCI = configInfo->next;
UT_DBGOUT(2, ("<UT> freeComponentList: freeing CI [%p] from [%p]\n", configInfo, componentList));
if (configInfo->groupName != NULL) {
j9mem_free_memory(configInfo->groupName);
}
if (configInfo->componentName != NULL) {
j9mem_free_memory(configInfo->componentName);
}
j9mem_free_memory(configInfo);
configInfo = tempCI;
}
j9mem_free_memory(componentList);
UT_DBGOUT(2, ("<UT> freeComponentList: %p finished processing\n", componentList));
return OMR_ERROR_NONE;
}
omr_error_t
addComponentToList(UtComponentData *componentData, UtComponentList *componentList)
{
UtComponentData *compDataCursor = NULL;
UtComponentData *endOfList = NULL;
UT_DBGOUT(1, ("<UT> addComponentToList: component: %s list: %p\n", componentData->componentName, componentList));
if (componentList == NULL) {
UT_DBGOUT(1, ("<UT> Not adding %s to NULL component list\n", componentData->componentName));
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
if (componentData == NULL) {
UT_DBGOUT(1, ("<UT> Not adding NULL component to component list\n"));
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
compDataCursor = componentList->head;
endOfList = componentList->head;
/* is it already in the list? */
while (compDataCursor != NULL) {
char *tempName = compDataCursor->componentName;
if (try_scan(&tempName, componentData->componentName) && (*tempName == '\0')) {
/* found the component in the component list */
UT_DBGOUT(1, ("<UT> addComponentToList: component %s found\n", componentData->componentName));
if (compDataCursor->moduleInfo != NULL && componentData->moduleInfo->traceVersionInfo->traceVersion >= 6) {
/* mirror existing active info into newly registering module */
memcpy(componentData->moduleInfo->active, compDataCursor->moduleInfo->active, compDataCursor->moduleInfo->count);
componentData->moduleInfo->next = compDataCursor->moduleInfo;
}
}
/* need to walk to end of list in all cases */
endOfList = compDataCursor;
compDataCursor = compDataCursor->next;
}
UT_DBGOUT(1, ("<UT> addComponentToList: adding %s [%p] at ", componentData->componentName, componentData));
if (endOfList == NULL) {
UT_DBGOUT(1, ("<UT> head\n"));
/* this is the head of the list */
componentList->head = componentData;
componentData->prev = NULL;
componentData->next = NULL;
} else {
UT_DBGOUT(1, ("<UT> end\n"));
/* add component to the end of the list */
endOfList->next = componentData;
componentData->prev = endOfList;
componentData->next = NULL;
}
return OMR_ERROR_NONE;
}
omr_error_t
processComponentDefferedConfig(UtComponentData *componentData, UtComponentList *componentList)
{
omr_error_t rc = OMR_ERROR_NONE;
if (componentList == NULL || componentData == NULL) {
UT_DBGOUT(1, ("<UT> Can't process config info for a NULL component [%p] or NULL component list [%p]\n", componentData, componentList));
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
if (componentData->moduleInfo == NULL) {
UT_DBGOUT(1, ("<UT> Can't process defferred config info on a non live component: %s\n", componentData->componentName));
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
/* all the pent up config needs to be released */
if (componentList->deferredConfigInfoHead != NULL) {
UT_DBGOUT(2, ("<UT> processComponentDefferedConfig: component %s - applying global deferred config info\n", componentData->componentName));
UtDeferredConfigInfo *configInfo = componentList->deferredConfigInfoHead;
while (configInfo != NULL) {
BOOLEAN configAppliesToAll = j9_cmdla_stricmp(configInfo->componentName, UT_ALL) == 0;
if (configAppliesToAll || j9_cmdla_stricmp(configInfo->componentName, componentData->componentName) == 0) {
/* Applying "all" options to components may fail because of missing groups or other inappropriate settings.
* We suppress messages when applying "all" options to new components.
*/
BOOLEAN suppressMessages = configAppliesToAll;
omr_error_t err = setTracePointsTo(componentData->componentName, componentList,
configInfo->all, configInfo->firstTracePoint,
configInfo->lastTracePoint, configInfo->value,
configInfo->level, configInfo->groupName,
suppressMessages, configInfo->setActive);
if (OMR_ERROR_NONE != err) {
if (!suppressMessages) {
UT_DBGOUT(1, ("<UT> can't activate deferred trace opts on %s\n", componentData->componentName));
rc = err;
}
}
}
configInfo = configInfo->next;
}
UT_DBGOUT(2, ("<UT> processComponentDefferedConfig: component %s - apply global deferred config info complete\n", componentData->componentName));
}
UT_DBGOUT(2, ("<UT> addComponentToList: component %s processed deferred config info\n", componentData->componentName));
return rc;
}
omr_error_t
removeModuleFromList(UtModuleInfo *module, UtComponentList *componentList)
{
UtComponentData *compDataCursor = componentList->head;
UT_DBGOUT(2, ("<UT> removeModuleFromList: searching for module %s in componentList %p\n", module->name, componentList));
/* for flight controller functionality, any unloaded components should be moved onto an unloaded list,
* so their formatting strings and a memcpy of their moduleInfo is available
*/
while (compDataCursor != NULL) {
if (0 == strcmp(compDataCursor->componentName, module->name)) {
UT_DBGOUT(2, ("<UT> removeModuleFromList: found component %s in componentList %p\n", module->name, componentList));
/* remove this module from the linked list within the component */
if (module->traceVersionInfo->traceVersion < 6) {
/* pre version 6 modules can't be treated as a linked list */
compDataCursor->moduleInfo = NULL;
} else {
UtModuleInfo **moduleCursor = &compDataCursor->moduleInfo;
while (*moduleCursor != NULL) {
if (*moduleCursor == module) {
*moduleCursor = module->next;
break;
}
moduleCursor = &(*moduleCursor)->next;
}
}
/* if this component has no more modules, remove it from the list */
if (NULL == compDataCursor->moduleInfo) {
UtComponentData *prevCompData = compDataCursor->prev;
if (NULL == prevCompData) {
/* this is the head of the list */
componentList->head = compDataCursor->next;
if (NULL != compDataCursor->next) {
compDataCursor->next->prev = NULL;
}
} else {
/* this is in the middle of the list */
prevCompData->next = compDataCursor->next;
if (compDataCursor->next != NULL) {
compDataCursor->next->prev = prevCompData;
}
}
if (componentList == UT_GLOBAL(componentList)) {
/* ensure no-one tries to continue using this as it will be going away */
compDataCursor->moduleInfo = NULL;
/* add to the unloaded modules list */
addComponentToList(compDataCursor, UT_GLOBAL(unloadedComponentList));
} else {
/* otherwise we are unloading it from some other list so free it before we lose
* our reference to it
*/
freeComponentData(compDataCursor);
}
}
return OMR_ERROR_NONE;
}
compDataCursor = compDataCursor->next;
}
UT_DBGOUT(2, ("<UT> removeModuleFromList: didn't find component %s in componentList %p\n", module->name, componentList));
return OMR_ERROR_INTERNAL;
}
static UtComponentData *
getComponentDataNext(const char *componentName, UtComponentList *componentList, UtComponentData *position)
{
UtComponentData *compDataCursor;
if (position == NULL) {
/* Beginning search from the first component */
compDataCursor = componentList->head;
} else {
/* Resuming search from the last component found with this name. */
compDataCursor = position->next;
}
UT_DBGOUT(4, ("<UT> getComponentData: searching for component %s in componentList %p\n", (componentName) ? componentName : "NULL", componentList));
if (componentName == NULL) {
UT_DBGOUT(1, ("<UT> Can't get ComponentData for NULL componentName\n"));
return NULL;
}
while (compDataCursor != NULL) {
char *tempName = compDataCursor->componentName;
if (try_scan(&tempName, (char *)componentName) && *tempName == '\0') {
UT_DBGOUT(4, ("<UT> getComponentData: found component %s [%p] in componentList %p\n", componentName, compDataCursor, componentList));
return compDataCursor;
}
compDataCursor = compDataCursor->next;
}
UT_DBGOUT(4, ("<UT> getComponentData: didn't find component %s in componentList %p\n", componentName, componentList));
return NULL;
}
UtComponentData *
getComponentData(const char *componentName, UtComponentList *componentList)
{
return getComponentDataNext(componentName, componentList, NULL);
}
static UtComponentData *
getComponentDataForModule(UtModuleInfo *moduleInfo, UtComponentList *componentList)
{
/* Beginning search from the first component */
UtComponentData *compDataCursor = componentList->head;
UT_DBGOUT(4, ("<UT> getComponentData: searching for component for module %p in componentList %p\n", moduleInfo, componentList));
while (compDataCursor != NULL) {
if (compDataCursor->moduleInfo == moduleInfo) {
UT_DBGOUT(4, ("<UT> getComponentData: found component %s [%p] in componentList %p\n", compDataCursor->qualifiedComponentName, compDataCursor, componentList));
return compDataCursor;
}
compDataCursor = compDataCursor->next;
}
UT_DBGOUT(4, ("<UT> getComponentData: didn't find component for module %p in componentList %p\n", moduleInfo, componentList));
return NULL;
}
static void
updateActiveArray(UtComponentData *compData, int32_t first, int32_t last, unsigned char value, int32_t setActive)
{
UtModuleInfo *moduleInfoCursor = compData->moduleInfo;
int32_t i = 0;
while (moduleInfoCursor != NULL) {
if (value == 0) {
for (i = first; i <= last; i++) {
moduleInfoCursor->active[i] = value;
}
} else {
if (setActive) {
for (i = first; i <= last; i++) {
moduleInfoCursor->active[i] |= value;
}
} else {
for (i = first; i <= last; i++) {
moduleInfoCursor->active[i] &= ~value;
}
}
}
if (moduleInfoCursor->traceVersionInfo->traceVersion < 6) {
/* pre 6 modules can't be treated as linked list */
moduleInfoCursor = NULL;
} else {
moduleInfoCursor = moduleInfoCursor->next;
}
}
}
/* Utility function for parsing command line options */
static char *
newSubString(const char *buffer, size_t ret)
{
PORT_ACCESS_FROM_PORT(UT_GLOBAL(portLibrary));
char *temp = (char *)j9mem_allocate_memory(ret + 1, OMRMEM_CATEGORY_TRACE);
UT_DBGOUT(2, ("<UT> newSubString: buffer %s size %d \n", buffer, ret));
if (temp == NULL) {
/*fprintf(stderr, "newSubString error\n");*/
return NULL;
}
strncpy(temp, buffer, ret);
temp[ret] = '\0';
UT_DBGOUT(2, ("<UT> newSubString: returning buffer %p \n", temp));
return temp;
}
static void freeSubString(char *buffer)
{
PORT_ACCESS_FROM_PORT(UT_GLOBAL(portLibrary));
UT_DBGOUT(2, ("<UT> freeSubString: buffer %p\n", buffer));
j9mem_free_memory(buffer);
return;
}
/* Utility function for parsing command line options */
static int32_t
parseNumFromBuffer(const char *buffer, int ret)
{
int32_t rc = 0;
char *temp = newSubString(buffer, ret + 1);
UT_DBGOUT(2, ("<UT> parseNumFromBuffer: buffer %s\n", buffer));
if (temp == NULL) {
/*fprintf(stderr, "parseNum error\n");*/
return -1;
}
strncpy(temp, buffer, ret);
temp[ret] = '\0';
rc = atoi(temp);
freeSubString(temp);
UT_DBGOUT(2, ("<UT> parseNumFromBuffer: buffer %s found %d\n", buffer, rc));
return rc;
}
static omr_error_t
addDeferredConfigToList(const char *componentName, int32_t all,
int32_t first, int32_t last, unsigned char value, int level, const char *groupName, UtDeferredConfigInfo **configList, int32_t setActive)
{
UtDeferredConfigInfo *dconfiginfo = NULL;
PORT_ACCESS_FROM_PORT(UT_GLOBAL(portLibrary));
/* 1) add to deferred options for components that register */
UT_DBGOUT(2, ("<UT> setTracePointsTo: component %s applying to all and adding to global deferred", componentName));
dconfiginfo = (UtDeferredConfigInfo *)j9mem_allocate_memory(sizeof(UtDeferredConfigInfo), OMRMEM_CATEGORY_TRACE);
if (dconfiginfo == NULL) {
UT_DBGOUT(1, ("<UT> Unable to set tracepoints in %s - can't allocate config info\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
dconfiginfo->componentName = (char *)j9mem_allocate_memory(strlen(componentName) + 1, OMRMEM_CATEGORY_TRACE);
if (dconfiginfo->componentName == NULL) {
UT_DBGOUT(1, ("<UT> Unable to set tracepoints in %s - can't allocate config info componentName\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
strcpy(dconfiginfo->componentName, componentName);
dconfiginfo->all = all;
dconfiginfo->firstTracePoint = first;
dconfiginfo->lastTracePoint = last;
dconfiginfo->value = value;
dconfiginfo->level = level;
dconfiginfo->setActive = setActive;
if (groupName == NULL) {
dconfiginfo->groupName = NULL;
} else {
dconfiginfo->groupName = (char *)j9mem_allocate_memory(strlen(groupName) + 1, OMRMEM_CATEGORY_TRACE);
if (dconfiginfo->groupName == NULL) {
UT_DBGOUT(1, ("<UT> Unable to set tracepoints in %s - can't allocate config info groupName\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
strcpy(dconfiginfo->groupName, groupName);
}
dconfiginfo->next = NULL;
if (*configList == NULL) {
*configList = dconfiginfo;
} else {
UtDeferredConfigInfo *temp = *configList;
while (temp->next != NULL) {
temp = temp->next;
}
temp->next = dconfiginfo;
}
return OMR_ERROR_NONE;
}
/* For this function, we assume that componentName has been parsed, and contains a single
* component name only.
*/
static omr_error_t
setTracePointsForComponent(const char *componentName, UtComponentList *componentList, int32_t all, int32_t first, int32_t last,
unsigned char value, int level, const char *groupName, BOOLEAN suppressMessages, int32_t setActive)
{
UtComponentData *compData = NULL;
UtModuleInfo *modInfo = NULL;
omr_error_t rc = OMR_ERROR_NONE;
if (0 == j9_cmdla_strnicmp(componentName, UT_ALL, strlen(UT_ALL))) {
rc = addDeferredConfigToList(componentName,
all, first, last, value, level, groupName,
&componentList->deferredConfigInfoHead,
setActive);
compData = componentList->head;
while (compData != NULL) {
if (compData->moduleInfo != NULL) {
first = 0;
last = compData->moduleInfo->count - 1;
/* Don't configure auxiliary modules */
if (MODULE_IS_AUXILIARY(compData->moduleInfo)) {
compData = compData->next;
continue;
}
if (level != -1) {
setTracePointsByLevelTo(compData, level, value, setActive);
} else if (groupName != NULL) {
setTracePointGroupTo(groupName, compData, value, TRUE, setActive);
} else {
updateActiveArray(compData, first, last, value, setActive);
}
}
compData = compData->next;
}
return rc;
}
compData = getComponentData(componentName, componentList);
if (compData == NULL) {
/* add the information to the deferred configuration list */
addDeferredConfigToList(componentName,
all, first, last, value, level, groupName,
&componentList->deferredConfigInfoHead, setActive);
} else while (compData != NULL) { /* configuring live and registered module */
int32_t maxTraceId = compData->moduleInfo->count - 1;
UT_DBGOUT(2, ("<UT> setTracePointsTo: configuring registered component %s ", componentName));
if (all) {
first = 0;
last = maxTraceId;
}
modInfo = compData->moduleInfo;
if (first > maxTraceId) {
reportCommandLineError(suppressMessages, "Unable to set tracepoint %d in %s - tracepoint id out of range", first, componentName);
return OMR_ERROR_INTERNAL;
}
if (last > maxTraceId) {
reportCommandLineError(suppressMessages, "Tracepoint %d not in range 0->%d %s", last, maxTraceId, componentName);
last = maxTraceId;
return OMR_ERROR_INTERNAL;
}
/*Auxiliary tracepoints can't be set*/
if (MODULE_IS_AUXILIARY(modInfo)) {
reportCommandLineError(suppressMessages, "Component %s is marked auxiliary and cannot be configured directly.", componentName);
return OMR_ERROR_INTERNAL;
}
if (groupName != NULL) {
UT_DBGOUT(2, ("by group %s\n", groupName));
rc = setTracePointGroupTo(groupName, compData, value, suppressMessages, setActive);
} else if (level != -1) {
UT_DBGOUT(2, ("by level %d\n", level));
rc = setTracePointsByLevelTo(compData, level, value, setActive);
} else {
UT_DBGOUT(2, ("by range %d-%d\n", first, last));
updateActiveArray(compData, first, last, value, setActive);
}
/* There may be more than one component with the same name, particularly in the case of
* libraries declared as submodules in tdf files. e.g. pool, j9util.
*/
compData = getComponentDataNext(componentName, componentList, compData);
}
return rc;
}
/* valid ranges passed in componentName are of one of the following forms:
* tpnid{j9vm.10}
* tpnid{j9vm.10-20}
* j9vm.10
* j9vm.10-20
* and so on
*/
static omr_error_t
parseAndSetTracePointsInRange(const char *componentName,
unsigned char value, int32_t setActive, BOOLEAN suppressMessages)
{
int length = 0;
const char *p = NULL;
omr_error_t rc = OMR_ERROR_INTERNAL;
int ret = 0;
int32_t firsttpid = 0;
int32_t lasttpid = 0;
char *compName = NULL;
const char *temp = NULL;
UT_DBGOUT(2, ("<UT> parseAndSetTracePointsInRange: %s\n", componentName));
p = componentName;
if (*p == '\0') {
return OMR_ERROR_NONE;
}
/* Tracepoint ID specified? */
if (0 == j9_cmdla_strnicmp(p, UT_TPID, strlen(UT_TPID)) &&
(p[strlen(UT_TPID)] == '(' || p[strlen(UT_TPID)] == '{')) {
reportCommandLineError(suppressMessages, "Invalid trace options, use: tpnid{componentName.[integer_offset]}");
return OMR_ERROR_ILLEGAL_ARGUMENT;
} else if (0 == j9_cmdla_strnicmp(p, UT_TPNID, strlen(UT_TPNID)) &&
p[strlen(UT_TPNID)] == '{') {
length = 0;
length += (int)strlen(UT_TPNID) + 1; /* the prefix and the open brace */
/* Is there a close brace? */
if (strchr(p, '}') == NULL) {
reportCommandLineError(suppressMessages, "Error: unclosed braces");
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
}
if (componentName[0] == '!') {
value = 0x00;
}
p += length;
temp = p;
while (*temp != '}' && *temp != '\0') {
ret = 0;
if (*temp == ',') {
temp++, p++, length++;
}
while (*temp != '.') {
if (*temp == '}' || *temp=='\0') {
reportCommandLineError(suppressMessages, "Expecting tpnid{compname.offset} e.g. tpnid{j9trc.4}");
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
temp++;
ret++;
}
compName = newSubString(p, ret);
if (compName == NULL) {
UT_DBGOUT(1, ("<UT> Can't allocate substring while parsing command line\n"));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
length += ret + 1;
p += ret + 1; /* plus one for the full-stop */
ret = 0;
temp = p;
while (isdigit((int)*temp)) {
ret++;
temp++;
}
length += ret;
if (*temp == '-') {
firsttpid = parseNumFromBuffer(p, ret);
temp++;
p += ret + 1;
length++; /* plus one for the dash */
ret = 0;
if (!isdigit(*temp)) {
reportCommandLineError(suppressMessages, "Expecting tracepoint range specified as tpnid{componentName.offset1-offset2} e.g. tpnid{j9trc.2-6}");
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
while (isdigit(*temp)) {
ret++;
temp++;
}
lasttpid = parseNumFromBuffer(p, ret);
/* Swap if specified largest first. */
if (lasttpid < firsttpid) {
int32_t temptpid = firsttpid;
firsttpid = lasttpid;
lasttpid = temptpid;
}
rc = setTracePointsForComponent(compName, UT_GLOBAL(componentList), FALSE, firsttpid, lasttpid, value, -1, NULL, suppressMessages, setActive);
length += ret;
p += ret;
} else {
firsttpid = lasttpid = parseNumFromBuffer(p, ret);
rc = setTracePointsForComponent(compName, UT_GLOBAL(componentList), FALSE, firsttpid, lasttpid, value, -1, NULL, suppressMessages, setActive);
p += ret;
}
freeSubString(compName);
}
return rc;
}
omr_error_t
setTracePointsTo(const char *componentName, UtComponentList *componentList, int32_t all, int32_t first, int32_t last,
unsigned char value, int level, const char *groupName, BOOLEAN suppressMessages, int32_t setActive)
{
const char *tempstr = NULL;
char *compNamesBuffer = NULL;
int32_t stripbraces = FALSE;
size_t namelength = 0;
omr_error_t rc = OMR_ERROR_NONE;
PORT_ACCESS_FROM_PORT(UT_GLOBAL(portLibrary));
if (componentName == NULL) {
reportCommandLineError(suppressMessages, "Can't set tracepoints for NULL componentName");
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
if (componentList == NULL) {
UT_DBGOUT(1, ("<UT> can't set tracepoints against NULL componentList\n"));
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
UT_DBGOUT(1, ("<UT> setTracePointsTo: component %s all= %s first=%d last=%d value=%d\n", componentName, (all ? "TRUE" : "FALSE"), first, last));
/* check for multiple components */
tempstr = strchr(componentName, ',');
if (NULL != tempstr) {
/* we have been passed multiple component names */
UT_DBGOUT(2, ("<UT> setTracePointsTo found component list: %s\n", componentName));
if (componentName[0] == '{') {
/* option is a list of components enclosed in braces */
componentName++;
stripbraces = TRUE;
} else if ((0 == j9_cmdla_strnicmp(componentName, UT_TPNID, strlen(UT_TPNID))) && (tempstr < strchr(componentName, '}'))) {
/* option is 'tpnid' followed by a list of components enclosed in braces */
componentName += (int)strlen(UT_TPNID) + 1; /* skip over the prefix and the open brace */
stripbraces = TRUE;
}
/* separate and process the first component name */
namelength = tempstr - componentName;
compNamesBuffer = (char *)j9mem_allocate_memory(strlen(componentName) + 1, OMRMEM_CATEGORY_TRACE);
if (compNamesBuffer == NULL) {
UT_DBGOUT(1, ("<UT> Unable to set tracepoints in %s - can't allocate tempname info\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
strncpy(compNamesBuffer, componentName, namelength);
compNamesBuffer[namelength] = '\0'; /* replace the comma and terminate the string */
rc = setTracePointsToParsed(compNamesBuffer, componentList, all, first, last, value, level, groupName, suppressMessages, setActive);
if (rc != OMR_ERROR_NONE) {
j9mem_free_memory(compNamesBuffer);
return rc;
}
componentName += namelength + 1;
namelength = strlen(componentName);
strcpy(compNamesBuffer, componentName);
compNamesBuffer[namelength] = '\0';
if (stripbraces == TRUE) {
compNamesBuffer[namelength - 1] = '\0'; /* blat the close brace out of the allocated copy */
}
/* recurse here in case the remainder is still a comma separated list */
rc = setTracePointsTo(compNamesBuffer, componentList, all, first, last, value, level, groupName, suppressMessages, setActive);
j9mem_free_memory(compNamesBuffer);
return rc;
}
/* if we get here we have a single option, but it might still be enclosed by braces */
if (componentName[0] == '{') {
componentName++;
compNamesBuffer = (char *)j9mem_allocate_memory(strlen(componentName) + 1, OMRMEM_CATEGORY_TRACE);
if (compNamesBuffer == NULL) {
UT_DBGOUT(1, ("<UT> Unable to set tracepoints in %s - can't allocate tempname info\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
namelength = strlen(componentName);
strcpy(compNamesBuffer, componentName);
compNamesBuffer[namelength - 1] = '\0'; /* blat the close brace out of the allocated copy */
rc = setTracePointsToParsed(compNamesBuffer, componentList, all, first, last, value, level, groupName, suppressMessages, setActive);
j9mem_free_memory(compNamesBuffer);
} else {
rc = setTracePointsToParsed(componentName, componentList, all, first, last, value, level, groupName, suppressMessages, setActive);
}
return rc;
}
omr_error_t
setTracePointsToParsed(const char *componentName, UtComponentList *componentList, int32_t all, int32_t first, int32_t last,
unsigned char value, int level, const char *groupName, BOOLEAN suppressMessages, int32_t setActive)
{
const char *tempstr = NULL;
char *newstr = NULL;
char *newstr2 = NULL;
size_t namelength = 0;
size_t groupnamelength = 0;
omr_error_t rc = OMR_ERROR_NONE;
PORT_ACCESS_FROM_PORT(UT_GLOBAL(portLibrary));
UT_DBGOUT(2, ("<UT> setTracePointsToParsed: %s\n", componentName));
if (strchr(componentName, '.') != NULL) {
/* we have a range of tracepoints */
rc = parseAndSetTracePointsInRange(componentName, value, setActive, suppressMessages);
/* can't combine ranges and levels etc. */
return rc;
}
if ((tempstr = strchr(componentName, '{')) != NULL || (tempstr = strchr(componentName, '(')) != NULL) {
char closingBrace;
UT_DBGOUT(2, ("<UT> setTracePointsTo: has detected a suboption %s in %s\n", tempstr, componentName));
namelength = tempstr - componentName;
if (*tempstr == '{') {
closingBrace = '}';
} else {
closingBrace = ')';
}
/* Look for empty braces - this is always an error */
if (*(tempstr + 1) == closingBrace) {
reportCommandLineError(suppressMessages, "Error: found empty braces or parentheses");
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
/* Look for unclosed braces - another error */
if (strchr( tempstr, closingBrace) == NULL) {
reportCommandLineError(suppressMessages, "Error: unclosed braces or parentheses");
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
tempstr++; /* points at first option char now */
if (0 == j9_cmdla_strnicmp(tempstr, UT_LEVEL_KEYWORD, strlen(UT_LEVEL_KEYWORD)) ||
*tempstr == 'l' || *tempstr == 'L') {
while (!isdigit(*tempstr)) {
if (*tempstr == ',' || *tempstr == '}' || *tempstr == '\0') {
reportCommandLineError(suppressMessages, "Trace level required without an integer level specifier");
return OMR_ERROR_ILLEGAL_ARGUMENT;
}
tempstr++;
}
sscanf(tempstr, "%d", &level);
newstr = (char *)j9mem_allocate_memory(namelength + 1, OMRMEM_CATEGORY_TRACE);
if (newstr == NULL) {
UT_DBGOUT(1, ("<UT> Unable to set tracepoints in %s - can't allocate tempname info\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
strncpy(newstr, componentName, namelength);
newstr[namelength] = '\0';
UT_DBGOUT(2, ("<UT> setTracePointsTo: Level detected %d in %s\n", level, newstr));
componentName = newstr;
/* actual configuration of the component will now fall through to below */
} else {
/* must be a group name note - types are now groups */
UT_DBGOUT(2, ("<UT> setTracePointsTo: A Group detected \n"));
newstr = (char *)j9mem_allocate_memory(namelength + 1, OMRMEM_CATEGORY_TRACE);
if (newstr == NULL) {
UT_DBGOUT(1, ("<UT> Unable to set tracepoints in %s - can't allocate tempname info\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
strncpy(newstr, componentName, namelength);
newstr[namelength] = '\0';
groupnamelength = strlen(componentName) - namelength;
newstr2 = (char *)j9mem_allocate_memory(groupnamelength - 1, OMRMEM_CATEGORY_TRACE);
if (newstr2 == NULL) {
UT_DBGOUT(1, ("<UT> Unable to set tracepoints in %s - can't allocate tempname info\n", componentName));
return OMR_ERROR_OUT_OF_NATIVE_MEMORY;
}
strncpy(newstr2, componentName + namelength + 1, groupnamelength - 2);
newstr2[groupnamelength - 2] = '\0';
groupName = newstr2;
UT_DBGOUT(2, ("<UT> setTracePointsTo: Group %s detected in %s\n", groupName, newstr));
componentName = newstr;
}
}
rc = setTracePointsForComponent(componentName, componentList, all, first, last,
value, level, groupName, suppressMessages, setActive);
/* tidy up */
if (newstr != NULL) {
j9mem_free_memory( newstr);
}
if (newstr2 != NULL) {
j9mem_free_memory( newstr2);
}
return rc;
}
/*******************************************************************************
* name - openFileFromDirectorySearchList
* description - Look for a file in a semicolon separated list of directories
* parameters - searchPath - a semicolon separated list of directories, null
* terminated and non NULL.
* fileName - the name of the file to look for null terminated
* flags - flags to be passed into the file open call
* mode - flags to be passed into the file open call
* returns - intptr_t >= 0 on success, < 0 on failure
* success returns a valid file handle to be used in
* subsequent file operations.
******************************************************************************/
static intptr_t
openFileFromDirectorySearchList(char *searchPath, char *fileName, int32_t flags, int32_t mode)
{
intptr_t fileHandle = -1;
char tempFileNamePath[MAX_IMAGE_PATH_LENGTH];
char *nextPathEntry = searchPath;
size_t searchPathLen = 0;
size_t offset = 0;
if (searchPath == NULL || fileName == NULL) {
/* error */
return fileHandle;
}
searchPathLen = strlen(searchPath);
while (offset < searchPathLen) {