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/*
* Copyright (c) 2014 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2016 IBM Corporation. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/* A simple test runner program for the usnic BTL unit tests. See README.test
* for more information. */
/* for dladdr() */
#define _GNU_SOURCE
#include <assert.h>
#include <libgen.h> /* for dirname() */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
#define MCA_BTL_USNIC_SO "mca_btl_usnic.so"
typedef void (*run_tests_fn_t)(void);
int main(int argc, char **argv)
{
void *mpi_handle;
void *usnic_handle;
void (*run_tests)(void);
int (*init)(int *, char ***);
int (*finalize)(void);
Dl_info info;
char *libmpi_path;
char *path;
char *to;
int path_len;
mpi_handle = dlopen("lib" OMPI_LIBMPI_NAME ".so", RTLD_NOW | RTLD_GLOBAL);
if (mpi_handle == NULL) {
fprintf(stderr, "mpi_handle=NULL dlerror()=%s\n", dlerror());
abort();
}
/* casting awfulness needed for GCC's "-pedantic" option :( */
*(void **) (&init) = dlsym(mpi_handle, "MPI_Init");
if (init == NULL) {
fprintf(stderr, "init=NULL dlerror()=%s\n", dlerror());
abort();
}
/* casting awfulness needed for GCC's "-pedantic" option :( */
*(void **) (&finalize) = dlsym(mpi_handle, "MPI_Finalize");
if (finalize == NULL) {
fprintf(stderr, "finalize=%p dlerror()=%s\n", *(void **) (&finalize), dlerror());
abort();
}
/* call MPI_Init this way to avoid build-time dependency issues */
init(&argc, &argv);
/* figure out where the usnic BTL shared object is relative to libmpi.so */
if (!dladdr(*(void **) (&init), &info)) {
fprintf(stderr, "ERROR: unable to dladdr(init,...)\n");
abort();
}
libmpi_path = strdup(info.dli_fname);
assert(libmpi_path != NULL);
path_len = strlen(libmpi_path) + strlen("/openmpi/") + strlen(MCA_BTL_USNIC_SO);
path = calloc(path_len + 1, 1);
to = path;
to = stpcpy(to, dirname(libmpi_path));
to = stpcpy(to, "/openmpi/");
to = stpcpy(to, MCA_BTL_USNIC_SO);
usnic_handle = dlopen(path, RTLD_NOW | RTLD_LOCAL);
if (usnic_handle == NULL) {
fprintf(stderr, "usnic_handle=%p dlerror()=%s\n", (void *) usnic_handle, dlerror());
abort();
}
free(libmpi_path);
free(path);
/* casting awfulness needed for GCC's "-pedantic" option :( */
*(void **) (&run_tests) = dlsym(usnic_handle, BTL_USNIC_RUN_TESTS_SYMBOL);
if (run_tests == NULL) {
fprintf(stderr, "run_tests=%p dlerror()=%s\n", *(void **) (&run_tests), dlerror());
abort();
}
run_tests();
finalize();
/* deliberately do not dlclose() either handle so that any valgrind stack
* traces are more useful */
return 0;
}
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