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topology-xml.c
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topology-xml.c
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/*
* Copyright © 2009 CNRS
* Copyright © 2009-2022 Inria. All rights reserved.
* Copyright © 2009-2011, 2020 Université Bordeaux
* Copyright © 2009-2018 Cisco Systems, Inc. All rights reserved.
* See COPYING in top-level directory.
*/
#include "private/autogen/config.h"
#include "hwloc.h"
#include "private/xml.h"
#include "private/private.h"
#include "private/misc.h"
#include "private/debug.h"
#include <math.h>
int
hwloc__xml_verbose(void)
{
static int checked = 0;
static int verbose = 0;
if (!checked) {
const char *env = getenv("HWLOC_XML_VERBOSE");
if (env)
verbose = atoi(env);
checked = 1;
}
return verbose;
}
static int
hwloc_nolibxml_import(void)
{
static int checked = 0;
static int nolibxml = 0;
if (!checked) {
const char *env = getenv("HWLOC_LIBXML");
if (env) {
nolibxml = !atoi(env);
} else {
env = getenv("HWLOC_LIBXML_IMPORT");
if (env)
nolibxml = !atoi(env);
}
checked = 1;
}
return nolibxml;
}
static int
hwloc_nolibxml_export(void)
{
static int checked = 0;
static int nolibxml = 0;
if (!checked) {
const char *env = getenv("HWLOC_LIBXML");
if (env) {
nolibxml = !atoi(env);
} else {
env = getenv("HWLOC_LIBXML_EXPORT");
if (env)
nolibxml = !atoi(env);
}
checked = 1;
}
return nolibxml;
}
#define BASE64_ENCODED_LENGTH(length) (4*(((length)+2)/3))
/*********************************
********* XML callbacks *********
*********************************/
/* set when registering nolibxml and libxml components.
* modifications protected by the components mutex.
* read by the common XML code in topology-xml.c to jump to the right XML backend.
*/
static struct hwloc_xml_callbacks *hwloc_nolibxml_callbacks = NULL, *hwloc_libxml_callbacks = NULL;
void
hwloc_xml_callbacks_register(struct hwloc_xml_component *comp)
{
if (!hwloc_nolibxml_callbacks)
hwloc_nolibxml_callbacks = comp->nolibxml_callbacks;
if (!hwloc_libxml_callbacks)
hwloc_libxml_callbacks = comp->libxml_callbacks;
}
void
hwloc_xml_callbacks_reset(void)
{
hwloc_nolibxml_callbacks = NULL;
hwloc_libxml_callbacks = NULL;
}
/************************************************
********* XML import (common routines) *********
************************************************/
#define _HWLOC_OBJ_CACHE_OLD (HWLOC_OBJ_TYPE_MAX+1) /* temporarily used when importing pre-v2.0 attribute-less cache types */
#define _HWLOC_OBJ_FUTURE (HWLOC_OBJ_TYPE_MAX+2) /* temporarily used when ignoring future types */
static void
hwloc__xml_import_object_attr(struct hwloc_topology *topology,
struct hwloc_xml_backend_data_s *data,
struct hwloc_obj *obj,
const char *name, const char *value,
hwloc__xml_import_state_t state,
int *ignore)
{
if (!strcmp(name, "type")) {
/* already handled */
return;
}
else if (!strcmp(name, "os_index"))
obj->os_index = strtoul(value, NULL, 10);
else if (!strcmp(name, "gp_index")) {
obj->gp_index = strtoull(value, NULL, 10);
if (!obj->gp_index && hwloc__xml_verbose())
fprintf(stderr, "%s: unexpected zero gp_index, topology may be invalid\n", state->global->msgprefix);
if (obj->gp_index >= topology->next_gp_index)
topology->next_gp_index = obj->gp_index + 1;
} else if (!strcmp(name, "id")) { /* forward compat */
if (!strncmp(value, "obj", 3)) {
obj->gp_index = strtoull(value+3, NULL, 10);
if (!obj->gp_index && hwloc__xml_verbose())
fprintf(stderr, "%s: unexpected zero id, topology may be invalid\n", state->global->msgprefix);
if (obj->gp_index >= topology->next_gp_index)
topology->next_gp_index = obj->gp_index + 1;
} else {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: unexpected id `%s' not-starting with `obj', ignoring\n", value, state->global->msgprefix);
}
} else if (!strcmp(name, "cpuset")) {
if (!obj->cpuset)
obj->cpuset = hwloc_bitmap_alloc();
hwloc_bitmap_sscanf(obj->cpuset, value);
} else if (!strcmp(name, "complete_cpuset")) {
if (!obj->complete_cpuset)
obj->complete_cpuset = hwloc_bitmap_alloc();
hwloc_bitmap_sscanf(obj->complete_cpuset, value);
} else if (!strcmp(name, "allowed_cpuset")) {
/* ignored except for root */
if (!obj->parent)
hwloc_bitmap_sscanf(topology->allowed_cpuset, value);
} else if (!strcmp(name, "nodeset")) {
if (!obj->nodeset)
obj->nodeset = hwloc_bitmap_alloc();
hwloc_bitmap_sscanf(obj->nodeset, value);
} else if (!strcmp(name, "complete_nodeset")) {
if (!obj->complete_nodeset)
obj->complete_nodeset = hwloc_bitmap_alloc();
hwloc_bitmap_sscanf(obj->complete_nodeset, value);
} else if (!strcmp(name, "allowed_nodeset")) {
/* ignored except for root */
if (!obj->parent)
hwloc_bitmap_sscanf(topology->allowed_nodeset, value);
} else if (!strcmp(name, "name")) {
if (obj->name)
free(obj->name);
obj->name = strdup(value);
} else if (!strcmp(name, "subtype")) {
if (obj->subtype)
free(obj->subtype);
obj->subtype = strdup(value);
}
else if (!strcmp(name, "cache_size")) {
unsigned long long lvalue = strtoull(value, NULL, 10);
if (hwloc__obj_type_is_cache(obj->type) || obj->type == _HWLOC_OBJ_CACHE_OLD || obj->type == HWLOC_OBJ_MEMCACHE)
obj->attr->cache.size = lvalue;
else if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring cache_size attribute for non-cache object type\n",
state->global->msgprefix);
}
else if (!strcmp(name, "cache_linesize")) {
unsigned long lvalue = strtoul(value, NULL, 10);
if (hwloc__obj_type_is_cache(obj->type) || obj->type == _HWLOC_OBJ_CACHE_OLD || obj->type == HWLOC_OBJ_MEMCACHE)
obj->attr->cache.linesize = lvalue;
else if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring cache_linesize attribute for non-cache object type\n",
state->global->msgprefix);
}
else if (!strcmp(name, "cache_associativity")) {
int lvalue = atoi(value);
if (hwloc__obj_type_is_cache(obj->type) || obj->type == _HWLOC_OBJ_CACHE_OLD || obj->type == HWLOC_OBJ_MEMCACHE)
obj->attr->cache.associativity = lvalue;
else if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring cache_associativity attribute for non-cache object type\n",
state->global->msgprefix);
}
else if (!strcmp(name, "cache_type")) {
unsigned long lvalue = strtoul(value, NULL, 10);
if (hwloc__obj_type_is_cache(obj->type) || obj->type == _HWLOC_OBJ_CACHE_OLD || obj->type == HWLOC_OBJ_MEMCACHE) {
if (lvalue == HWLOC_OBJ_CACHE_UNIFIED
|| lvalue == HWLOC_OBJ_CACHE_DATA
|| lvalue == HWLOC_OBJ_CACHE_INSTRUCTION)
obj->attr->cache.type = (hwloc_obj_cache_type_t) lvalue;
else
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring invalid cache_type attribute %lu\n",
state->global->msgprefix, lvalue);
} else if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring cache_type attribute for non-cache object type\n",
state->global->msgprefix);
}
else if (!strcmp(name, "local_memory")) {
unsigned long long lvalue = strtoull(value, NULL, 10);
if (obj->type == HWLOC_OBJ_NUMANODE)
obj->attr->numanode.local_memory = lvalue;
else if (!obj->parent)
topology->machine_memory.local_memory = lvalue;
else if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring local_memory attribute for non-NUMAnode non-root object\n",
state->global->msgprefix);
}
else if (!strcmp(name, "depth")) {
unsigned long lvalue = strtoul(value, NULL, 10);
if (hwloc__obj_type_is_cache(obj->type) || obj->type == _HWLOC_OBJ_CACHE_OLD || obj->type == HWLOC_OBJ_MEMCACHE) {
obj->attr->cache.depth = lvalue;
} else if (obj->type == HWLOC_OBJ_GROUP || obj->type == HWLOC_OBJ_BRIDGE) {
/* will be overwritten by the core */
} else if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring depth attribute for object type without depth\n",
state->global->msgprefix);
}
else if (!strcmp(name, "kind")) {
unsigned long lvalue = strtoul(value, NULL, 10);
if (obj->type == HWLOC_OBJ_GROUP)
obj->attr->group.kind = lvalue;
else if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring kind attribute for non-group object type\n",
state->global->msgprefix);
}
else if (!strcmp(name, "subkind")) {
unsigned long lvalue = strtoul(value, NULL, 10);
if (obj->type == HWLOC_OBJ_GROUP)
obj->attr->group.subkind = lvalue;
else if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring subkind attribute for non-group object type\n",
state->global->msgprefix);
}
else if (!strcmp(name, "dont_merge")) {
unsigned long lvalue = strtoul(value, NULL, 10);
if (obj->type == HWLOC_OBJ_GROUP)
obj->attr->group.dont_merge = (unsigned char) lvalue;
else if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring dont_merge attribute for non-group object type\n",
state->global->msgprefix);
}
else if (!strcmp(name, "pci_busid")) {
switch (obj->type) {
case HWLOC_OBJ_PCI_DEVICE:
case HWLOC_OBJ_BRIDGE: {
unsigned domain, bus, dev, func;
if (sscanf(value, "%x:%02x:%02x.%01x",
&domain, &bus, &dev, &func) != 4) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring invalid pci_busid format string %s\n",
state->global->msgprefix, value);
*ignore = 1;
#ifndef HWLOC_HAVE_32BITS_PCI_DOMAIN
} else if (domain > 0xffff) {
static int warned = 0;
if (!warned && hwloc_hide_errors() < 2)
fprintf(stderr, "hwloc/xml: Ignoring PCI device with non-16bit domain.\nPass --enable-32bits-pci-domain to configure to support such devices\n(warning: it would break the library ABI, don't enable unless really needed).\n");
warned = 1;
*ignore = 1;
#endif
} else {
obj->attr->pcidev.domain = domain;
obj->attr->pcidev.bus = bus;
obj->attr->pcidev.dev = dev;
obj->attr->pcidev.func = func;
}
break;
}
default:
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring pci_busid attribute for non-PCI object\n",
state->global->msgprefix);
break;
}
}
else if (!strcmp(name, "pci_type")) {
switch (obj->type) {
case HWLOC_OBJ_PCI_DEVICE:
case HWLOC_OBJ_BRIDGE: {
unsigned classid, vendor, device, subvendor, subdevice, revision;
if (sscanf(value, "%x [%04x:%04x] [%04x:%04x] %02x",
&classid, &vendor, &device, &subvendor, &subdevice, &revision) != 6) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring invalid pci_type format string %s\n",
state->global->msgprefix, value);
} else {
obj->attr->pcidev.class_id = classid;
obj->attr->pcidev.vendor_id = vendor;
obj->attr->pcidev.device_id = device;
obj->attr->pcidev.subvendor_id = subvendor;
obj->attr->pcidev.subdevice_id = subdevice;
obj->attr->pcidev.revision = revision;
}
break;
}
default:
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring pci_type attribute for non-PCI object\n",
state->global->msgprefix);
break;
}
}
else if (!strcmp(name, "pci_link_speed")) {
switch (obj->type) {
case HWLOC_OBJ_PCI_DEVICE:
case HWLOC_OBJ_BRIDGE: {
obj->attr->pcidev.linkspeed = (float) atof(value);
break;
}
default:
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring pci_link_speed attribute for non-PCI object\n",
state->global->msgprefix);
break;
}
}
else if (!strcmp(name, "bridge_type")) {
switch (obj->type) {
case HWLOC_OBJ_BRIDGE: {
unsigned upstream_type, downstream_type;
if (sscanf(value, "%u-%u", &upstream_type, &downstream_type) != 2) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring invalid bridge_type format string %s\n",
state->global->msgprefix, value);
} else {
obj->attr->bridge.upstream_type = (hwloc_obj_bridge_type_t) upstream_type;
obj->attr->bridge.downstream_type = (hwloc_obj_bridge_type_t) downstream_type;
/* FIXME verify that upstream/downstream type is valid */
};
break;
}
default:
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring bridge_type attribute for non-bridge object\n",
state->global->msgprefix);
break;
}
}
else if (!strcmp(name, "bridge_pci")) {
switch (obj->type) {
case HWLOC_OBJ_BRIDGE: {
unsigned domain, secbus, subbus;
if (sscanf(value, "%x:[%02x-%02x]",
&domain, &secbus, &subbus) != 3) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring invalid bridge_pci format string %s\n",
state->global->msgprefix, value);
*ignore = 1;
#ifndef HWLOC_HAVE_32BITS_PCI_DOMAIN
} else if (domain > 0xffff) {
static int warned = 0;
if (!warned && hwloc_hide_errors() < 2)
fprintf(stderr, "hwloc/xml: Ignoring bridge to PCI with non-16bit domain.\nPass --enable-32bits-pci-domain to configure to support such devices\n(warning: it would break the library ABI, don't enable unless really needed).\n");
warned = 1;
*ignore = 1;
#endif
} else {
/* FIXME verify that downstream type vs pci info are valid */
obj->attr->bridge.downstream.pci.domain = domain;
obj->attr->bridge.downstream.pci.secondary_bus = secbus;
obj->attr->bridge.downstream.pci.subordinate_bus = subbus;
}
break;
}
default:
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring bridge_pci attribute for non-bridge object\n",
state->global->msgprefix);
break;
}
}
else if (!strcmp(name, "osdev_type")) {
switch (obj->type) {
case HWLOC_OBJ_OS_DEVICE: {
unsigned osdev_type;
if (sscanf(value, "%u", &osdev_type) != 1) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring invalid osdev_type format string %s\n",
state->global->msgprefix, value);
} else
obj->attr->osdev.type = (hwloc_obj_osdev_type_t) osdev_type;
break;
}
default:
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring osdev_type attribute for non-osdev object\n",
state->global->msgprefix);
break;
}
}
else if (data->version_major < 2) {
/************************
* deprecated from 1.x
*/
if (!strcmp(name, "os_level")
|| !strcmp(name, "online_cpuset"))
{ /* ignored */ }
/*************************
* deprecated from 1.0
*/
else if (!strcmp(name, "dmi_board_vendor")) {
if (value[0])
hwloc_obj_add_info(obj, "DMIBoardVendor", value);
}
else if (!strcmp(name, "dmi_board_name")) {
if (value[0])
hwloc_obj_add_info(obj, "DMIBoardName", value);
}
else if (data->version_major < 1) {
/*************************
* deprecated from 0.9
*/
if (!strcmp(name, "memory_kB")) {
unsigned long long lvalue = strtoull(value, NULL, 10);
if (obj->type == _HWLOC_OBJ_CACHE_OLD)
obj->attr->cache.size = lvalue << 10;
else if (obj->type == HWLOC_OBJ_NUMANODE)
obj->attr->numanode.local_memory = lvalue << 10;
else if (!obj->parent)
topology->machine_memory.local_memory = lvalue << 10;
else if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring memory_kB attribute for non-NUMAnode non-root object\n",
state->global->msgprefix);
}
else if (!strcmp(name, "huge_page_size_kB")) {
unsigned long lvalue = strtoul(value, NULL, 10);
if (obj->type == HWLOC_OBJ_NUMANODE || !obj->parent) {
struct hwloc_numanode_attr_s *memory = obj->type == HWLOC_OBJ_NUMANODE ? &obj->attr->numanode : &topology->machine_memory;
if (!memory->page_types) {
memory->page_types = malloc(sizeof(*memory->page_types));
memory->page_types_len = 1;
}
assert(memory->page_types);
memory->page_types[0].size = lvalue << 10;
} else if (hwloc__xml_verbose()) {
fprintf(stderr, "%s: ignoring huge_page_size_kB attribute for non-NUMAnode non-root object\n",
state->global->msgprefix);
}
}
else if (!strcmp(name, "huge_page_free")) {
unsigned long lvalue = strtoul(value, NULL, 10);
if (obj->type == HWLOC_OBJ_NUMANODE || !obj->parent) {
struct hwloc_numanode_attr_s *memory = obj->type == HWLOC_OBJ_NUMANODE ? &obj->attr->numanode : &topology->machine_memory;
if (!memory->page_types) {
memory->page_types = malloc(sizeof(*memory->page_types));
memory->page_types_len = 1;
}
assert(memory->page_types);
memory->page_types[0].count = lvalue;
} else if (hwloc__xml_verbose()) {
fprintf(stderr, "%s: ignoring huge_page_free attribute for non-NUMAnode non-root object\n",
state->global->msgprefix);
}
}
/* end of deprecated from 0.9 */
else goto unknown;
}
/* end of deprecated from 1.0 */
else goto unknown;
}
else {
unknown:
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring unknown object attribute %s\n",
state->global->msgprefix, name);
}
}
static int
hwloc___xml_import_info(char **infonamep, char **infovaluep,
hwloc__xml_import_state_t state)
{
char *infoname = NULL;
char *infovalue = NULL;
while (1) {
char *attrname, *attrvalue;
if (state->global->next_attr(state, &attrname, &attrvalue) < 0)
break;
if (!strcmp(attrname, "name"))
infoname = attrvalue;
else if (!strcmp(attrname, "value"))
infovalue = attrvalue;
else
return -1;
}
*infonamep = infoname;
*infovaluep = infovalue;
return state->global->close_tag(state);
}
static int
hwloc__xml_import_obj_info(struct hwloc_xml_backend_data_s *data,
hwloc_obj_t obj,
hwloc__xml_import_state_t state)
{
char *infoname = NULL;
char *infovalue = NULL;
int err;
err = hwloc___xml_import_info(&infoname, &infovalue, state);
if (err < 0)
return err;
if (infoname) {
/* empty strings are ignored by libxml */
if (data->version_major < 2 &&
(!strcmp(infoname, "Type") || !strcmp(infoname, "CoProcType"))) {
/* 1.x stored subtype in Type or CoProcType */
if (infovalue) {
if (obj->subtype)
free(obj->subtype);
obj->subtype = strdup(infovalue);
}
} else {
if (infovalue)
hwloc_obj_add_info(obj, infoname, infovalue);
}
}
return err;
}
static int
hwloc__xml_import_pagetype(hwloc_topology_t topology __hwloc_attribute_unused, struct hwloc_numanode_attr_s *memory,
hwloc__xml_import_state_t state)
{
uint64_t size = 0, count = 0;
while (1) {
char *attrname, *attrvalue;
if (state->global->next_attr(state, &attrname, &attrvalue) < 0)
break;
if (!strcmp(attrname, "size"))
size = strtoull(attrvalue, NULL, 10);
else if (!strcmp(attrname, "count"))
count = strtoull(attrvalue, NULL, 10);
else
return -1;
}
if (size) {
unsigned idx = memory->page_types_len;
struct hwloc_memory_page_type_s *tmp;
tmp = realloc(memory->page_types, (idx+1)*sizeof(*memory->page_types));
if (tmp) { /* if failed to allocate, ignore this page_type entry */
memory->page_types = tmp;
memory->page_types_len = idx+1;
memory->page_types[idx].size = size;
memory->page_types[idx].count = count;
}
}
return state->global->close_tag(state);
}
static int
hwloc__xml_v1import_distances(struct hwloc_xml_backend_data_s *data,
hwloc_obj_t obj,
hwloc__xml_import_state_t state)
{
unsigned long reldepth = 0, nbobjs = 0;
float latbase = 0;
char *tag;
int ret;
while (1) {
char *attrname, *attrvalue;
if (state->global->next_attr(state, &attrname, &attrvalue) < 0)
break;
if (!strcmp(attrname, "nbobjs"))
nbobjs = strtoul(attrvalue, NULL, 10);
else if (!strcmp(attrname, "relative_depth"))
reldepth = strtoul(attrvalue, NULL, 10);
else if (!strcmp(attrname, "latency_base"))
latbase = (float) atof(attrvalue);
else
return -1;
}
if (nbobjs && reldepth && latbase) {
unsigned i;
float *matrix;
struct hwloc__xml_imported_v1distances_s *v1dist;
matrix = malloc(nbobjs*nbobjs*sizeof(float));
v1dist = malloc(sizeof(*v1dist));
if (!matrix || !v1dist) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: failed to allocate v1distance matrix for %lu objects\n",
state->global->msgprefix, nbobjs);
free(v1dist);
free(matrix);
return -1;
}
v1dist->kind = HWLOC_DISTANCES_KIND_FROM_OS|HWLOC_DISTANCES_KIND_MEANS_LATENCY;
/* TODO: we can't know for sure if it comes from the OS.
* On Linux/x86, it would be 10 on the diagonal.
* On Solaris/T5, 15 on the diagonal.
* Just check whether all values are integers, and that all values on the diagonal are minimal and identical?
*/
v1dist->nbobjs = nbobjs;
v1dist->floats = matrix;
for(i=0; i<nbobjs*nbobjs; i++) {
struct hwloc__xml_import_state_s childstate;
char *attrname, *attrvalue;
float val;
ret = state->global->find_child(state, &childstate, &tag);
if (ret <= 0 || strcmp(tag, "latency")) {
/* a latency child is needed */
free(matrix);
free(v1dist);
return -1;
}
ret = state->global->next_attr(&childstate, &attrname, &attrvalue);
if (ret < 0 || strcmp(attrname, "value")) {
free(matrix);
free(v1dist);
return -1;
}
val = (float) atof((char *) attrvalue);
matrix[i] = val * latbase;
ret = state->global->close_tag(&childstate);
if (ret < 0) {
free(matrix);
free(v1dist);
return -1;
}
state->global->close_child(&childstate);
}
if (nbobjs < 2) {
/* distances with a single object are useless, even if the XML isn't invalid */
assert(nbobjs == 1);
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring invalid distance matrix with only 1 object\n",
state->global->msgprefix);
free(matrix);
free(v1dist);
} else if (obj->parent) {
/* we currently only import distances attached to root.
* we can't save obj in v1dist because obj could be dropped during insert if ignored.
* we could save its complete_cpu/nodeset instead to find it back later.
* but it doesn't matter much since only NUMA distances attached to root matter.
*/
free(matrix);
free(v1dist);
} else {
/* queue the distance for real */
v1dist->prev = data->last_v1dist;
v1dist->next = NULL;
if (data->last_v1dist)
data->last_v1dist->next = v1dist;
else
data->first_v1dist = v1dist;
data->last_v1dist = v1dist;
}
}
return state->global->close_tag(state);
}
static int
hwloc__xml_import_userdata(hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj,
hwloc__xml_import_state_t state)
{
size_t length = 0;
int encoded = 0;
char *name = NULL; /* optional */
int ret;
while (1) {
char *attrname, *attrvalue;
if (state->global->next_attr(state, &attrname, &attrvalue) < 0)
break;
if (!strcmp(attrname, "length"))
length = strtoul(attrvalue, NULL, 10);
else if (!strcmp(attrname, "encoding"))
encoded = !strcmp(attrvalue, "base64");
else if (!strcmp(attrname, "name"))
name = attrvalue;
else
return -1;
}
if (!topology->userdata_import_cb) {
const char *buffer;
size_t reallength = encoded ? BASE64_ENCODED_LENGTH(length) : length;
ret = state->global->get_content(state, &buffer, reallength);
if (ret < 0)
return -1;
} else if (topology->userdata_not_decoded) {
const char *buffer;
char *fakename;
size_t reallength = encoded ? BASE64_ENCODED_LENGTH(length) : length;
ret = state->global->get_content(state, &buffer, reallength);
if (ret < 0)
return -1;
fakename = malloc(6 + 1 + (name ? strlen(name) : 4) + 1);
if (!fakename)
return -1;
sprintf(fakename, encoded ? "base64%c%s" : "normal%c%s", name ? ':' : '-', name ? name : "anon");
topology->userdata_import_cb(topology, obj, fakename, buffer, length);
free(fakename);
} else if (encoded && length) {
const char *encoded_buffer;
size_t encoded_length = BASE64_ENCODED_LENGTH(length);
ret = state->global->get_content(state, &encoded_buffer, encoded_length);
if (ret < 0)
return -1;
if (ret) {
char *decoded_buffer = malloc(length+1);
if (!decoded_buffer)
return -1;
assert(encoded_buffer[encoded_length] == 0);
ret = hwloc_decode_from_base64(encoded_buffer, decoded_buffer, length+1);
if (ret != (int) length) {
free(decoded_buffer);
return -1;
}
topology->userdata_import_cb(topology, obj, name, decoded_buffer, length);
free(decoded_buffer);
}
} else { /* always handle length==0 in the non-encoded case */
const char *buffer = "";
if (length) {
ret = state->global->get_content(state, &buffer, length);
if (ret < 0)
return -1;
}
topology->userdata_import_cb(topology, obj, name, buffer, length);
}
state->global->close_content(state);
return state->global->close_tag(state);
}
static void hwloc__xml_import_report_outoforder(hwloc_topology_t topology, hwloc_obj_t new, hwloc_obj_t old)
{
char *progname = hwloc_progname(topology);
const char *origversion = hwloc_obj_get_info_by_name(topology->levels[0][0], "hwlocVersion");
const char *origprogname = hwloc_obj_get_info_by_name(topology->levels[0][0], "ProcessName");
char *c1, *cc1, t1[64];
char *c2 = NULL, *cc2 = NULL, t2[64];
hwloc_bitmap_asprintf(&c1, new->cpuset);
hwloc_bitmap_asprintf(&cc1, new->complete_cpuset);
hwloc_obj_type_snprintf(t1, sizeof(t1), new, 0);
if (old->cpuset)
hwloc_bitmap_asprintf(&c2, old->cpuset);
if (old->complete_cpuset)
hwloc_bitmap_asprintf(&cc2, old->complete_cpuset);
hwloc_obj_type_snprintf(t2, sizeof(t2), old, 0);
fprintf(stderr, "****************************************************************************\n");
fprintf(stderr, "* hwloc has encountered an out-of-order XML topology load.\n");
fprintf(stderr, "* Object %s cpuset %s complete %s\n",
t1, c1, cc1);
fprintf(stderr, "* was inserted after object %s with %s and %s.\n",
t2, c2 ? c2 : "none", cc2 ? cc2 : "none");
fprintf(stderr, "* The error occured in hwloc %s inside process `%s', while\n",
HWLOC_VERSION,
progname ? progname : "<unknown>");
if (origversion || origprogname)
fprintf(stderr, "* the input XML was generated by hwloc %s inside process `%s'.\n",
origversion ? origversion : "(unknown version)",
origprogname ? origprogname : "<unknown>");
else
fprintf(stderr, "* the input XML was generated by an unspecified ancient hwloc release.\n");
fprintf(stderr, "* Please check that your input topology XML file is valid.\n");
fprintf(stderr, "* Set HWLOC_DEBUG_CHECK=1 in the environment to detect further issues.\n");
fprintf(stderr, "****************************************************************************\n");
free(c1);
free(cc1);
free(c2);
free(cc2);
free(progname);
}
static int
hwloc__xml_import_object(hwloc_topology_t topology,
struct hwloc_xml_backend_data_s *data,
hwloc_obj_t parent, hwloc_obj_t obj, int *gotignored,
hwloc__xml_import_state_t state)
{
int ignored = 0;
int childrengotignored = 0;
int attribute_less_cache = 0;
int numa_was_root = 0;
char *tag;
struct hwloc__xml_import_state_s childstate;
/* set parent now since it's used during import below or in subfunctions */
obj->parent = parent;
/* process attributes */
while (1) {
char *attrname, *attrvalue;
if (state->global->next_attr(state, &attrname, &attrvalue) < 0)
break;
if (!strcmp(attrname, "type")) {
if (hwloc_type_sscanf(attrvalue, &obj->type, NULL, 0) < 0) {
if (!strcasecmp(attrvalue, "Cache")) {
obj->type = _HWLOC_OBJ_CACHE_OLD; /* will be fixed below */
attribute_less_cache = 1;
} else if (!strcasecmp(attrvalue, "System")) {
if (!parent)
obj->type = HWLOC_OBJ_MACHINE;
else {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: obsolete System object only allowed at root\n",
state->global->msgprefix);
goto error_with_object;
}
} else if (!strcasecmp(attrvalue, "Tile")) {
/* deal with possible future type */
obj->type = HWLOC_OBJ_GROUP;
obj->attr->group.kind = HWLOC_GROUP_KIND_INTEL_TILE;
} else if (!strcasecmp(attrvalue, "Module")) {
/* deal with possible future type */
obj->type = HWLOC_OBJ_GROUP;
obj->attr->group.kind = HWLOC_GROUP_KIND_INTEL_MODULE;
} else if (!strcasecmp(attrvalue, "MemCache")) {
/* ignore possible future type */
obj->type = _HWLOC_OBJ_FUTURE;
ignored = 1;
if (hwloc__xml_verbose())
fprintf(stderr, "%s: %s object not-supported, will be ignored\n",
state->global->msgprefix, attrvalue);
} else {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: unrecognized object type string %s\n",
state->global->msgprefix, attrvalue);
goto error_with_object;
}
}
} else {
/* type needed first */
if (obj->type == HWLOC_OBJ_TYPE_NONE) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: object attribute %s found before type\n",
state->global->msgprefix, attrname);
goto error_with_object;
}
hwloc__xml_import_object_attr(topology, data, obj, attrname, attrvalue, state, &ignored);
}
}
/* process non-object subnodes to get info attrs (as well as page_types, etc) */
while (1) {
int ret;
tag = NULL;
ret = state->global->find_child(state, &childstate, &tag);
if (ret < 0)
goto error;
if (!ret)
break;
if (!strcmp(tag, "object")) {
/* we'll handle children later */
break;
} else if (!strcmp(tag, "page_type")) {
if (obj->type == HWLOC_OBJ_NUMANODE) {
ret = hwloc__xml_import_pagetype(topology, &obj->attr->numanode, &childstate);
} else if (!parent) {
ret = hwloc__xml_import_pagetype(topology, &topology->machine_memory, &childstate);
} else {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: invalid non-NUMAnode object child %s\n",
state->global->msgprefix, tag);
ret = -1;
}
} else if (!strcmp(tag, "info")) {
ret = hwloc__xml_import_obj_info(data, obj, &childstate);
} else if (data->version_major < 2 && !strcmp(tag, "distances")) {
ret = hwloc__xml_v1import_distances(data, obj, &childstate);
} else if (!strcmp(tag, "userdata")) {
ret = hwloc__xml_import_userdata(topology, obj, &childstate);
} else {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: invalid special object child %s\n",
state->global->msgprefix, tag);
ret = -1;
}
if (ret < 0)
goto error;
state->global->close_child(&childstate);
}
if (parent && obj->type == HWLOC_OBJ_MACHINE) {
/* replace non-root Machine with Groups */
obj->type = HWLOC_OBJ_GROUP;
}
if (parent && data->version_major >= 2) {
/* check parent/child types for 2.x */
if (hwloc__obj_type_is_normal(obj->type)) {
if (!hwloc__obj_type_is_normal(parent->type)) {
if (hwloc__xml_verbose())
fprintf(stderr, "normal object %s cannot be child of non-normal parent %s\n",
hwloc_obj_type_string(obj->type), hwloc_obj_type_string(parent->type));
goto error_with_object;
}
} else if (hwloc__obj_type_is_memory(obj->type)) {
if (hwloc__obj_type_is_io(parent->type) || HWLOC_OBJ_MISC == parent->type) {
if (hwloc__xml_verbose())
fprintf(stderr, "Memory object %s cannot be child of non-normal-or-memory parent %s\n",
hwloc_obj_type_string(obj->type), hwloc_obj_type_string(parent->type));
goto error_with_object;
}
} else if (hwloc__obj_type_is_io(obj->type)) {
if (hwloc__obj_type_is_memory(parent->type) || HWLOC_OBJ_MISC == parent->type) {
if (hwloc__xml_verbose())
fprintf(stderr, "I/O object %s cannot be child of non-normal-or-I/O parent %s\n",
hwloc_obj_type_string(obj->type), hwloc_obj_type_string(parent->type));
goto error_with_object;
}
}
} else if (parent && data->version_major < 2) {
/* check parent/child types for pre-v2.0 */
if (hwloc__obj_type_is_normal(obj->type) || HWLOC_OBJ_NUMANODE == obj->type) {
if (hwloc__obj_type_is_special(parent->type)) {
if (hwloc__xml_verbose())
fprintf(stderr, "v1.x normal v1.x object %s cannot be child of special parent %s\n",
hwloc_obj_type_string(obj->type), hwloc_obj_type_string(parent->type));
goto error_with_object;
}
} else if (hwloc__obj_type_is_io(obj->type)) {
if (HWLOC_OBJ_MISC == parent->type) {
if (hwloc__xml_verbose())
fprintf(stderr, "I/O object %s cannot be child of Misc parent\n",
hwloc_obj_type_string(obj->type));
goto error_with_object;
}
}
}
if (data->version_major < 2) {
/***************************
* 1.x specific checks
*/
/* attach pre-v2.0 children of NUMA nodes to normal parent */
if (parent && parent->type == HWLOC_OBJ_NUMANODE) {
parent = parent->parent;
assert(parent);
}