27f8a4e806
This commit adds a framework to abstract runtime code patching. Components in the new framework can provide functions for either patching a named function or a function pointer. The later functionality is not being used but may provide a way to allow memory hooks when dlopen functionality is disabled. This commit adds two different flavors of code patching. The first is provided by the overwrite component. This component overwrites the first several instructions of the target function with code to jump to the provided hook function. The hook is expected to provide the full functionality of the hooked function. The linux patcher component is based on the memory hooks in ucx. It only works on linux and operates by overwriting function pointers in the symbol table. In this case the hook is free to call the original function using the function pointer returned by dlsym. Both components restore the original functions when the patcher framework closes. Changes had to be made to support Power/PowerPC with the Linux dynamic loader patcher. Some of the changes: - Move code necessary for powerpc/power support to the patcher base. The code is needed by both the overwrite and linux components. - Move patch structure down to base and move the patch list to mca_patcher_base_module_t. The structure has been modified to include a function pointer to the function that will unapply the patch. This allows the mixing of multiple different types of patches in the patch_list. - Update linux patching code to keep track of the matching between got entry and original (unpatched) address. This allows us to completely clean up the patch on finalize. All patchers keep track of the changes they made so that they can be reversed when the patcher framework is closed. At this time there are bugs in the Linux dynamic loader patcher so its priority is lower than the overwrite patcher. Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
663 строки
20 KiB
C
663 строки
20 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2010 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007-2012 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2009 Oak Ridge National Labs. All rights reserved.
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* Copyright (c) 2010-2015 Los Alamos National Security, LLC.
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* All rights reserved.
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* Copyright (c) 2013-2015 Intel, Inc. All rights reserved
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* Copyright (c) 2015 Research Organization for Information Science
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* and Technology (RIST). All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/** @file **/
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "opal_config.h"
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#include "opal/util/malloc.h"
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#include "opal/util/arch.h"
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#include "opal/util/output.h"
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#include "opal/util/show_help.h"
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#include "opal/util/proc.h"
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#include "opal/memoryhooks/memory.h"
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#include "opal/mca/base/base.h"
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#include "opal/runtime/opal.h"
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#include "opal/util/net.h"
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#include "opal/datatype/opal_datatype.h"
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#include "opal/mca/installdirs/base/base.h"
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#include "opal/mca/memory/base/base.h"
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#include "opal/mca/patcher/base/base.h"
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#include "opal/mca/memcpy/base/base.h"
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#include "opal/mca/hwloc/base/base.h"
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#include "opal/mca/sec/base/base.h"
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#include "opal/mca/timer/base/base.h"
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#include "opal/mca/memchecker/base/base.h"
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#include "opal/dss/dss.h"
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#include "opal/mca/shmem/base/base.h"
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#if OPAL_ENABLE_FT_CR == 1
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#include "opal/mca/compress/base/base.h"
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#endif
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#include "opal/threads/threads.h"
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#include "opal/runtime/opal_cr.h"
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#include "opal/mca/crs/base/base.h"
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#include "opal/runtime/opal_progress.h"
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#include "opal/mca/event/base/base.h"
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#include "opal/mca/backtrace/base/base.h"
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#include "opal/constants.h"
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#include "opal/util/error.h"
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#include "opal/util/stacktrace.h"
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#include "opal/util/keyval_parse.h"
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#include "opal/util/sys_limits.h"
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#if OPAL_CC_USE_PRAGMA_IDENT
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#pragma ident OPAL_IDENT_STRING
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#elif OPAL_CC_USE_IDENT
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#ident OPAL_IDENT_STRING
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#endif
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const char opal_version_string[] = OPAL_IDENT_STRING;
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int opal_initialized = 0;
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bool opal_init_called = false;
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int opal_util_initialized = 0;
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/* We have to put a guess in here in case hwloc is not available. If
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hwloc is available, this value will be overwritten when the
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hwloc data is loaded. */
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int opal_cache_line_size = 128;
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bool opal_warn_on_fork = true;
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static int
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opal_err2str(int errnum, const char **errmsg)
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{
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const char *retval;
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switch (errnum) {
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case OPAL_SUCCESS:
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retval = "Success";
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break;
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case OPAL_ERROR:
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retval = "Error";
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break;
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case OPAL_ERR_OUT_OF_RESOURCE:
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retval = "Out of resource";
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break;
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case OPAL_ERR_TEMP_OUT_OF_RESOURCE:
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retval = "Temporarily out of resource";
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break;
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case OPAL_ERR_RESOURCE_BUSY:
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retval = "Resource busy";
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break;
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case OPAL_ERR_BAD_PARAM:
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retval = "Bad parameter";
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break;
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case OPAL_ERR_FATAL:
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retval = "Fatal";
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break;
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case OPAL_ERR_NOT_IMPLEMENTED:
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retval = "Not implemented";
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break;
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case OPAL_ERR_NOT_SUPPORTED:
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retval = "Not supported";
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break;
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case OPAL_ERR_INTERRUPTED:
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retval = "Interrupted";
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break;
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case OPAL_ERR_WOULD_BLOCK:
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retval = "Would block";
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break;
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case OPAL_ERR_IN_ERRNO:
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retval = "In errno";
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break;
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case OPAL_ERR_UNREACH:
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retval = "Unreachable";
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break;
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case OPAL_ERR_NOT_FOUND:
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retval = "Not found";
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break;
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case OPAL_EXISTS:
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retval = "Exists";
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break;
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case OPAL_ERR_TIMEOUT:
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retval = "Timeout";
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break;
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case OPAL_ERR_NOT_AVAILABLE:
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retval = "Not available";
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break;
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case OPAL_ERR_PERM:
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retval = "No permission";
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break;
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case OPAL_ERR_VALUE_OUT_OF_BOUNDS:
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retval = "Value out of bounds";
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break;
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case OPAL_ERR_FILE_READ_FAILURE:
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retval = "File read failure";
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break;
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case OPAL_ERR_FILE_WRITE_FAILURE:
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retval = "File write failure";
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break;
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case OPAL_ERR_FILE_OPEN_FAILURE:
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retval = "File open failure";
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break;
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case OPAL_ERR_PACK_MISMATCH:
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retval = "Pack data mismatch";
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break;
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case OPAL_ERR_PACK_FAILURE:
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retval = "Data pack failed";
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break;
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case OPAL_ERR_UNPACK_FAILURE:
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retval = "Data unpack failed";
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break;
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case OPAL_ERR_UNPACK_INADEQUATE_SPACE:
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retval = "Data unpack had inadequate space";
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break;
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case OPAL_ERR_UNPACK_READ_PAST_END_OF_BUFFER:
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retval = "Data unpack would read past end of buffer";
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break;
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case OPAL_ERR_OPERATION_UNSUPPORTED:
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retval = "Requested operation is not supported on referenced data type";
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break;
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case OPAL_ERR_UNKNOWN_DATA_TYPE:
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retval = "Unknown data type";
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break;
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case OPAL_ERR_BUFFER:
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retval = "Buffer type (described vs non-described) mismatch - operation not allowed";
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break;
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case OPAL_ERR_DATA_TYPE_REDEF:
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retval = "Attempt to redefine an existing data type";
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break;
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case OPAL_ERR_DATA_OVERWRITE_ATTEMPT:
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retval = "Attempt to overwrite a data value";
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break;
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case OPAL_ERR_MODULE_NOT_FOUND:
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retval = "Framework requires at least one active module, but none found";
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break;
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case OPAL_ERR_TOPO_SLOT_LIST_NOT_SUPPORTED:
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retval = "OS topology does not support slot_list process affinity";
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break;
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case OPAL_ERR_TOPO_SOCKET_NOT_SUPPORTED:
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retval = "Could not obtain socket topology information";
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break;
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case OPAL_ERR_TOPO_CORE_NOT_SUPPORTED:
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retval = "Could not obtain core topology information";
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break;
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case OPAL_ERR_NOT_ENOUGH_SOCKETS:
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retval = "Not enough sockets to meet request";
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break;
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case OPAL_ERR_NOT_ENOUGH_CORES:
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retval = "Not enough cores to meet request";
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break;
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case OPAL_ERR_INVALID_PHYS_CPU:
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retval = "Invalid physical cpu number returned";
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break;
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case OPAL_ERR_MULTIPLE_AFFINITIES:
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retval = "Multiple methods for assigning process affinity were specified";
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break;
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case OPAL_ERR_SLOT_LIST_RANGE:
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retval = "Provided slot_list range is invalid";
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break;
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case OPAL_ERR_NETWORK_NOT_PARSEABLE:
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retval = "Provided network specification is not parseable";
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break;
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case OPAL_ERR_SILENT:
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retval = NULL;
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break;
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case OPAL_ERR_NOT_INITIALIZED:
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retval = "Not initialized";
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break;
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case OPAL_ERR_NOT_BOUND:
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retval = "Not bound";
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break;
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case OPAL_ERR_TAKE_NEXT_OPTION:
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retval = "Take next option";
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break;
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case OPAL_ERR_PROC_ENTRY_NOT_FOUND:
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retval = "Database entry not found";
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break;
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case OPAL_ERR_DATA_VALUE_NOT_FOUND:
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retval = "Data for specified key not found";
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break;
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case OPAL_ERR_CONNECTION_FAILED:
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retval = "Connection failed";
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break;
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case OPAL_ERR_AUTHENTICATION_FAILED:
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retval = "Authentication failed";
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break;
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case OPAL_ERR_COMM_FAILURE:
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retval = "Comm failure";
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break;
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case OPAL_ERR_SERVER_NOT_AVAIL:
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retval = "Server not available";
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break;
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case OPAL_ERR_IN_PROCESS:
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retval = "Operation in process";
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break;
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case OPAL_ERR_DEBUGGER_RELEASE:
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retval = "Release debugger";
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break;
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default:
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retval = "UNRECOGNIZED";
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}
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*errmsg = retval;
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return OPAL_SUCCESS;
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}
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int
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opal_init_util(int* pargc, char*** pargv)
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{
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int ret;
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char *error = NULL;
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char hostname[512];
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if( ++opal_util_initialized != 1 ) {
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if( opal_util_initialized < 1 ) {
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return OPAL_ERROR;
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}
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return OPAL_SUCCESS;
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}
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#if OPAL_NO_LIB_DESTRUCTOR
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if (opal_init_called) {
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/* can't use show_help here */
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fprintf (stderr, "opal_init_util: attempted to initialize after finalize without compiler "
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"support for either __attribute__(destructor) or linker support for -fini -- process "
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"will likely abort\n");
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return OPAL_ERR_NOT_SUPPORTED;
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}
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#endif
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opal_init_called = true;
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/* set the nodename right away so anyone who needs it has it. Note
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* that we don't bother with fqdn and prefix issues here - we let
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* the RTE later replace this with a modified name if the user
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* requests it */
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gethostname(hostname, 512);
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opal_process_info.nodename = strdup(hostname);
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/* initialize the memory allocator */
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opal_malloc_init();
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/* initialize the output system */
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opal_output_init();
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/* initialize install dirs code */
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if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_installdirs_base_framework, 0))) {
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fprintf(stderr, "opal_installdirs_base_open() failed -- process will likely abort (%s:%d, returned %d instead of OPAL_SUCCESS)\n",
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__FILE__, __LINE__, ret);
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return ret;
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}
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/* initialize the help system */
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opal_show_help_init();
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/* register handler for errnum -> string converstion */
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if (OPAL_SUCCESS !=
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(ret = opal_error_register("OPAL",
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OPAL_ERR_BASE, OPAL_ERR_MAX, opal_err2str))) {
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error = "opal_error_register";
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goto return_error;
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}
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/* keyval lex-based parser */
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if (OPAL_SUCCESS != (ret = opal_util_keyval_parse_init())) {
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error = "opal_util_keyval_parse_init";
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goto return_error;
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}
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/* Setup the parameter system */
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if (OPAL_SUCCESS != (ret = mca_base_var_init())) {
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error = "mca_base_var_init";
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goto return_error;
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}
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/* register params for opal */
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if (OPAL_SUCCESS != (ret = opal_register_params())) {
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error = "opal_register_params";
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goto return_error;
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}
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if (OPAL_SUCCESS != (ret = opal_net_init())) {
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error = "opal_net_init";
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goto return_error;
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}
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/* pretty-print stack handlers */
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if (OPAL_SUCCESS != (ret = opal_util_register_stackhandlers())) {
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error = "opal_util_register_stackhandlers";
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goto return_error;
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}
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/* set system resource limits - internally protected against
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* doing so twice in cases where the launch agent did it for us
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*/
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if (OPAL_SUCCESS != (ret = opal_util_init_sys_limits(&error))) {
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opal_show_help("help-opal-runtime.txt",
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"opal_init:syslimit", false,
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error);
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return OPAL_ERR_SILENT;
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}
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/* initialize the arch string */
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if (OPAL_SUCCESS != (ret = opal_arch_init ())) {
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error = "opal_arch_init";
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goto return_error;
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}
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/* initialize the datatype engine */
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if (OPAL_SUCCESS != (ret = opal_datatype_init ())) {
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error = "opal_datatype_init";
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goto return_error;
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}
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/* Initialize the data storage service. */
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if (OPAL_SUCCESS != (ret = opal_dss_open())) {
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error = "opal_dss_open";
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goto return_error;
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}
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/* initialize the mca */
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if (OPAL_SUCCESS != (ret = mca_base_open())) {
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error = "mca_base_open";
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goto return_error;
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}
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return OPAL_SUCCESS;
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return_error:
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if (OPAL_ERR_SILENT != ret) {
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opal_show_help( "help-opal-runtime.txt",
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"opal_init:startup:internal-failure", true,
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error, ret );
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}
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return ret;
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}
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int
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opal_init(int* pargc, char*** pargv)
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{
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int ret;
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char *error = NULL;
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if( ++opal_initialized != 1 ) {
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if( opal_initialized < 1 ) {
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return OPAL_ERROR;
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}
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return OPAL_SUCCESS;
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}
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/* initialize util code */
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if (OPAL_SUCCESS != (ret = opal_init_util(pargc, pargv))) {
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return ret;
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}
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/* open hwloc - since this is a static framework, no
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* select is required
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*/
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if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_hwloc_base_framework, 0))) {
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error = "opal_hwloc_base_open";
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goto return_error;
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}
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/* the memcpy component should be one of the first who get
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* loaded in order to make sure we have all the available
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* versions of memcpy correctly configured.
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*/
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if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_memcpy_base_framework, 0))) {
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error = "opal_memcpy_base_open";
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goto return_error;
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}
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if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_patcher_base_framework, 0))) {
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error = "opal_patcher_base_open";
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goto return_error;
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}
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/* select a patcher module. if a patcher module can not be found it is not an error. */
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(void) opal_patcher_base_select ();
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/* open the memory manager components. Memory hooks may be
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triggered before this (any time after mem_free_init(),
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actually). This is a hook available for memory manager hooks
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without good initialization routine support */
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if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_memory_base_framework, 0))) {
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error = "opal_memory_base_open";
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goto return_error;
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}
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/* initialize the memory manager / tracker */
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if (OPAL_SUCCESS != (ret = opal_mem_hooks_init())) {
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error = "opal_mem_hooks_init";
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goto return_error;
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}
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|
/* initialize the memory checker, to allow early support for annotation */
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if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_memchecker_base_framework, 0))) {
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error = "opal_memchecker_base_open";
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goto return_error;
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}
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/* select the memory checker */
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if (OPAL_SUCCESS != (ret = opal_memchecker_base_select())) {
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error = "opal_memchecker_base_select";
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goto return_error;
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}
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|
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if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_backtrace_base_framework, 0))) {
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error = "opal_backtrace_base_open";
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|
goto return_error;
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}
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|
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|
if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_timer_base_framework, 0))) {
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|
error = "opal_timer_base_open";
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goto return_error;
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}
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|
/*
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|
* Need to start the event and progress engines if none else is.
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|
* opal_cr_init uses the progress engine, so it is lumped together
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|
* into this set as well.
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*/
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/*
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|
* Initialize the event library
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|
*/
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if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_event_base_framework, 0))) {
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error = "opal_event_base_open";
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goto return_error;
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}
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|
/*
|
|
* Initialize the general progress engine
|
|
*/
|
|
if (OPAL_SUCCESS != (ret = opal_progress_init())) {
|
|
error = "opal_progress_init";
|
|
goto return_error;
|
|
}
|
|
/* we want to tick the event library whenever possible */
|
|
opal_progress_event_users_increment();
|
|
|
|
/* setup the shmem framework */
|
|
if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_shmem_base_framework, 0))) {
|
|
error = "opal_shmem_base_open";
|
|
goto return_error;
|
|
}
|
|
|
|
if (OPAL_SUCCESS != (ret = opal_shmem_base_select())) {
|
|
error = "opal_shmem_base_select";
|
|
goto return_error;
|
|
}
|
|
|
|
#if OPAL_ENABLE_FT_CR == 1
|
|
/*
|
|
* Initialize the compression framework
|
|
* Note: Currently only used in C/R so it has been marked to only
|
|
* initialize when C/R is enabled. If other places in the code
|
|
* wish to use this framework, it is safe to remove the protection.
|
|
*/
|
|
if( OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_compress_base_framework, 0)) ) {
|
|
error = "opal_compress_base_open";
|
|
goto return_error;
|
|
}
|
|
if( OPAL_SUCCESS != (ret = opal_compress_base_select()) ) {
|
|
error = "opal_compress_base_select";
|
|
goto return_error;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Initalize the checkpoint/restart functionality
|
|
* Note: Always do this so we can detect if the user
|
|
* attempts to checkpoint a non checkpointable job,
|
|
* otherwise the tools may hang or not clean up properly.
|
|
*/
|
|
if (OPAL_SUCCESS != (ret = opal_cr_init() ) ) {
|
|
error = "opal_cr_init";
|
|
goto return_error;
|
|
}
|
|
|
|
/* initialize the security framework */
|
|
if( OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_sec_base_framework, 0)) ) {
|
|
error = "opal_sec_base_open";
|
|
goto return_error;
|
|
}
|
|
if( OPAL_SUCCESS != (ret = opal_sec_base_select()) ) {
|
|
error = "opal_sec_base_select";
|
|
goto return_error;
|
|
}
|
|
|
|
return OPAL_SUCCESS;
|
|
|
|
return_error:
|
|
opal_show_help( "help-opal-runtime.txt",
|
|
"opal_init:startup:internal-failure", true,
|
|
error, ret );
|
|
return ret;
|
|
}
|
|
|
|
int opal_init_test(void)
|
|
{
|
|
int ret;
|
|
char *error;
|
|
|
|
/* initialize the memory allocator */
|
|
opal_malloc_init();
|
|
|
|
/* initialize the output system */
|
|
opal_output_init();
|
|
|
|
/* initialize install dirs code */
|
|
if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_installdirs_base_framework, 0))) {
|
|
fprintf(stderr, "opal_installdirs_base_open() failed -- process will likely abort (%s:%d, returned %d instead of OPAL_SUCCESS)\n",
|
|
__FILE__, __LINE__, ret);
|
|
return ret;
|
|
}
|
|
|
|
/* initialize the help system */
|
|
opal_show_help_init();
|
|
|
|
/* register handler for errnum -> string converstion */
|
|
if (OPAL_SUCCESS !=
|
|
(ret = opal_error_register("OPAL",
|
|
OPAL_ERR_BASE, OPAL_ERR_MAX, opal_err2str))) {
|
|
error = "opal_error_register";
|
|
goto return_error;
|
|
}
|
|
|
|
/* keyval lex-based parser */
|
|
if (OPAL_SUCCESS != (ret = opal_util_keyval_parse_init())) {
|
|
error = "opal_util_keyval_parse_init";
|
|
goto return_error;
|
|
}
|
|
|
|
if (OPAL_SUCCESS != (ret = opal_net_init())) {
|
|
error = "opal_net_init";
|
|
goto return_error;
|
|
}
|
|
|
|
/* Setup the parameter system */
|
|
if (OPAL_SUCCESS != (ret = mca_base_var_init())) {
|
|
error = "mca_base_var_init";
|
|
goto return_error;
|
|
}
|
|
|
|
/* register params for opal */
|
|
if (OPAL_SUCCESS != (ret = opal_register_params())) {
|
|
error = "opal_register_params";
|
|
goto return_error;
|
|
}
|
|
|
|
/* pretty-print stack handlers */
|
|
if (OPAL_SUCCESS != (ret = opal_util_register_stackhandlers())) {
|
|
error = "opal_util_register_stackhandlers";
|
|
goto return_error;
|
|
}
|
|
|
|
/* Initialize the data storage service. */
|
|
if (OPAL_SUCCESS != (ret = opal_dss_open())) {
|
|
error = "opal_dss_open";
|
|
goto return_error;
|
|
}
|
|
|
|
/* initialize the mca */
|
|
if (OPAL_SUCCESS != (ret = mca_base_open())) {
|
|
error = "mca_base_open";
|
|
goto return_error;
|
|
}
|
|
|
|
if (OPAL_SUCCESS != (ret = mca_base_framework_open(&opal_event_base_framework, 0))) {
|
|
error = "opal_event_base_open";
|
|
goto return_error;
|
|
}
|
|
|
|
return OPAL_SUCCESS;
|
|
|
|
return_error:
|
|
opal_show_help( "help-opal-runtime.txt",
|
|
"opal_init:startup:internal-failure", true,
|
|
error, ret );
|
|
return ret;
|
|
}
|
|
|
|
static bool fork_warning_issued = false;
|
|
static bool atfork_called = false;
|
|
|
|
static void warn_fork_cb(void)
|
|
{
|
|
if (opal_initialized && !fork_warning_issued) {
|
|
opal_show_help("help-opal-runtime.txt", "opal_init:warn-fork", true,
|
|
OPAL_NAME_PRINT(OPAL_PROC_MY_NAME), getpid());
|
|
fork_warning_issued = true;
|
|
}
|
|
}
|
|
|
|
void opal_warn_fork(void)
|
|
{
|
|
if (opal_warn_on_fork && !atfork_called) {
|
|
pthread_atfork(warn_fork_cb, NULL, NULL);
|
|
atfork_called = true;
|
|
}
|
|
}
|