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openmpi/ompi/debuggers/ompi_debuggers.c
Jeff Squyres 597266fdec Present state of MPI debugger work:
* New/improved bootstrapping technique for DLLs 
 * First cut of the MPI handle debugging interface. It is still
   evolving, but the interface is getting more stable.
 * Some minor bugs were fixed in the unity topo component (brought to
   light because of the new MPI handle debugging stuff).

Fixes trac:1209.

This commit was SVN r17730.

The following Trac tickets were found above:
  Ticket 1209 --> https://svn.open-mpi.org/trac/ompi/ticket/1209
2008-03-05 12:22:34 +00:00

200 строки
6.8 KiB
C

/* -*- Mode: C; c-basic-offset:4 ; -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2007 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2007 Cisco, Inc. All rights resereved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* MPI portion of debugger support: initially based on the
* TotalView/Etnus API for debuggers to attach to MPI jobs.
*/
#include "ompi_config.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "opal/mca/base/base.h"
#include "opal/util/argv.h"
#include "opal/mca/installdirs/installdirs.h"
#include "debuggers.h"
/**
* A lot of include files that are required by al optimized builds in order
* to get access to the type information. Beware, this file have to always
* be compiled with the -g flag, otherwise the type information will be
* missing and the parallel debuggers will be unable to initialize the
* Open MPI debug library.
*/
#include "opal/class/opal_list.h"
#include "ompi/class/ompi_free_list.h"
#include "ompi/request/request.h"
#include "ompi/mca/pml/base/pml_base_request.h"
#include "ompi/mca/pml/base/pml_base_sendreq.h"
#include "ompi/mca/pml/base/pml_base_recvreq.h"
#include "opal/class/opal_pointer_array.h"
#include "ompi/communicator/communicator.h"
#include "ompi/group/group.h"
#include "ompi/datatype/datatype.h"
#include "ompi/include/mpi.h"
OMPI_DECLSPEC int MPIR_being_debugged = 0;
OMPI_DECLSPEC volatile int MPIR_debug_gate = 0;
OMPI_DECLSPEC volatile int MPIR_debug_state = 0;
#if defined(OMPI_MSGQ_DLL)
/* This variable is old/deprecated -- the mpimsgq_dll_locations[]
method is preferred because it's more flexible */
OMPI_DECLSPEC char MPIR_dll_name[] = OMPI_MSGQ_DLL;
#endif /* defined(OMPI_MSGQ_DLL) */
OMPI_DECLSPEC char **mpidbg_dll_locations = NULL;
OMPI_DECLSPEC char **mpimsgq_dll_locations = NULL;
OMPI_DECLSPEC int MPIR_debug_typedefs_sizeof[] = {
sizeof(short),
sizeof(int),
sizeof(long),
sizeof(long long),
sizeof(void*),
sizeof(bool),
sizeof(size_t)
};
struct MPIR_PROCDESC {
char *host_name; /* something that can be passed to inet_addr */
char *executable_name; /* name of binary */
int pid; /* process pid */
};
OMPI_DECLSPEC struct MPIR_PROCDESC *MPIR_proctable = NULL;
OMPI_DECLSPEC int MPIR_proctable_size = 0;
/**
* There is an issue with the debugger running on different architectures
* compared with the debugged program. We need to know the sizes of the types
* on the debugged program. The problem is that the size depend on the
* compilation options (32 or 64 bits) and on the compiler. Therefore,
* the simplest and more accurate way is to export these sizes directly from
* the debugged program.
*/
OMPI_DECLSPEC opal_list_item_t* opal_list_item_t_type_inclusion = NULL;
OMPI_DECLSPEC opal_list_t* opal_list_t_type_inclusion = NULL;
OMPI_DECLSPEC ompi_free_list_item_t* ompi_free_list_item_t_type_inclusion = NULL;
OMPI_DECLSPEC ompi_free_list_t* ompi_free_list_t_type_inclusion = NULL;
OMPI_DECLSPEC ompi_request_t* ompi_request_t_type_inclusion = NULL;
OMPI_DECLSPEC mca_pml_base_request_t* mca_pml_base_request_t_type_inclusion = NULL;
OMPI_DECLSPEC mca_pml_base_send_request_t* mca_pml_base_send_request_t_type_inclusion = NULL;
OMPI_DECLSPEC mca_pml_base_recv_request_t* mca_pml_base_recv_request_t_type_inclusion = NULL;
OMPI_DECLSPEC opal_pointer_array_t* opal_pointer_array_t_type_inclusion = NULL;
OMPI_DECLSPEC ompi_communicator_t* ompi_communicator_t_type_inclusion = NULL;
OMPI_DECLSPEC ompi_group_t* ompi_group_t_type_inclusion = NULL;
OMPI_DECLSPEC ompi_status_public_t* ompi_status_public_t_type_inclusion = NULL;
OMPI_DECLSPEC ompi_datatype_t* ompi_datatype_t_type_inclusion = NULL;
/* Check for a file in few dirrect ways for portability */
static void check(char *dir, char *file, char **locations)
{
char *str;
asprintf(&str, "%s/%s.so", dir, file);
#if defined(HAVE_SYS_STAT_H)
{
struct stat buf;
/* Use stat() */
if (0 == stat(str, &buf)) {
opal_argv_append_nosize(&locations, file);
}
}
#else
{
FILE *fp;
/* Just try to open the file */
if (NULL != (fp = fopen(str, "r"))) {
fclose(fp);
opal_argv_append_nosize(&locations, file);
}
}
#endif /* defined(HAVE_SYS_STAT_H) */
free(str);
}
/**
* Wait for a debugger if asked.
*/
void ompi_wait_for_debugger(void)
{
int i, wait_for_debugger, wait_for_tv;
char *a, *b, **dirs;
/* Do we need to wait for a TotalView-like debugger? */
mca_base_param_reg_int_name("orte",
"mpi_wait_for_debugger",
"Whether the MPI application "
"should wait for a debugger or not",
false, false, (int) false,
&wait_for_debugger);
mca_base_param_reg_int_name("orte",
"mpi_wait_for_totalview",
"Deprecated synonym for mpi_wait_for_debugger",
false, false, (int) false,
&wait_for_tv);
wait_for_debugger |= wait_for_tv;
a = strdup(opal_install_dirs.pkglibdir);
mca_base_param_reg_string_name("ompi",
"debugger_dll_path",
"List of directories where MPI_INIT should search for debugger plugins",
false, false, a, &b);
free(a);
/* Search the directory for MPI debugger DLLs */
if (NULL != b) {
dirs = opal_argv_split(b, ':');
for (i = 0; dirs[i] != NULL; ++i) {
check(dirs[i], OMPI_MPIHANDLES_DLL_PREFIX, mpidbg_dll_locations);
check(dirs[i], OMPI_MSGQ_DLL_PREFIX, mpimsgq_dll_locations);
}
}
/* If we're waiting for the debugger, then, well, wait for it. :-) */
if (wait_for_debugger) {
while (MPIR_debug_gate == 0) {
#if defined(__WINDOWS__)
Sleep(100); /* milliseconds */
#else
usleep(100000); /* microseconds */
#endif
}
}
}