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topology-xml.c
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topology-xml.c
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/*
* Copyright © 2009 CNRS
* Copyright © 2009-2023 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_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")) { /* starting with 3.x */
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", state->global->msgprefix, value);
}
} 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;
} 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, prog_if = 0;
if (sscanf(value, "%x [%04x:%04x] [%04x:%04x] %02x %02x",
&classid, &vendor, &device, &subvendor, &subdevice, &revision, &prog_if) != 7
&& sscanf(value, "%x [%04x:%04x] [%04x:%04x] %02x", /* hwloc < 3.x didn't export the prog-if */
&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.prog_if = prog_if;
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;
} 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 (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(hwloc_topology_t topology,
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 (infovalue) {
if (!obj->parent && (
!strcmp(infoname, "Backend")
|| !strcmp(infoname, "SyntheticDescription")
|| !strcmp(infoname, "LinuxCgroup")
|| !strcmp(infoname, "WindowsBuildEnvironment")
|| !strcmp(infoname, "OSName")
|| !strcmp(infoname, "OSRelease")
|| !strcmp(infoname, "OSVersion")
|| !strcmp(infoname, "HostName")
|| !strcmp(infoname, "Architecture")
|| !strcmp(infoname, "hwlocVersion")
|| !strcmp(infoname, "ProcessName"))) {
/* topo infos were in root in v2 */
hwloc__add_info(&topology->infos, infoname, infovalue);
} else {
hwloc_obj_add_info(obj, infoname, infovalue);
}
}
}
return err;
}
static int
hwloc__xml_import_pagetype(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, "info")) {
char *infoname, *infovalue;
int ret = hwloc___xml_import_info(&infoname, &infovalue, state);
if (ret < 0)
return -1;
/* ignored */
} else 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_import_userdata(hwloc_topology_t topology,
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;
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, "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, 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(&obj->attr->numanode, &childstate);
} else if (!parent) {
ret = hwloc__xml_import_pagetype(&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(topology, 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) {
/* 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;
}
}
}
/* 2.0 backward compatibility */
if (obj->type == HWLOC_OBJ_GROUP) {
if (obj->attr->group.kind == HWLOC_GROUP_KIND_INTEL_DIE
|| (obj->subtype && !strcmp(obj->subtype, "Die")))
obj->type = HWLOC_OBJ_DIE;
}
/* 2.x backward compatibility */
if (data->version_major <= 2 && obj->type == HWLOC_OBJ_OS_DEVICE) {
/* check if we need to add backend info to the root */
const char *backend = hwloc_obj_get_info_by_name(obj, "Backend");
if (backend) {
if (!strcmp(backend, "CUDA"))
data->need_cuda_backend_info = 1;
else if (!strcmp(backend, "NVML"))
data->need_nvml_backend_info = 1;
else if (!strcmp(backend, "RSMI"))
data->need_rsmi_backend_info = 1;
else if (!strcmp(backend, "LevelZero"))
data->need_levelzero_backend_info = 1;
else if (!strcmp(backend, "OpenCL"))
data->need_opencl_backend_info = 1;
else if (!strcmp(backend, "GL"))
data->need_gl_backend_info = 1;
}
}
/* check that cache attributes are coherent with the actual type */
if (hwloc__obj_type_is_cache(obj->type)
&& obj->type != hwloc_cache_type_by_depth_type(obj->attr->cache.depth, obj->attr->cache.type)) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: invalid cache type %s with attribute depth %u and type %d\n",
state->global->msgprefix, hwloc_obj_type_string(obj->type), obj->attr->cache.depth, (int) obj->attr->cache.type);
goto error_with_object;
}
/* check special types vs cpuset */
if (!obj->cpuset && !hwloc__obj_type_is_special(obj->type)) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: invalid normal object %s P#%u without cpuset\n",
state->global->msgprefix, hwloc_obj_type_string(obj->type), obj->os_index);
goto error_with_object;
}
if (obj->cpuset && hwloc__obj_type_is_special(obj->type)) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: invalid special object %s with cpuset\n",
state->global->msgprefix, hwloc_obj_type_string(obj->type));
goto error_with_object;
}
/* check parent vs child sets */
if (obj->cpuset && parent && !parent->cpuset) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: invalid object %s P#%u with cpuset while parent has none\n",
state->global->msgprefix, hwloc_obj_type_string(obj->type), obj->os_index);
goto error_with_object;
}
if (obj->nodeset && parent && !parent->nodeset) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: invalid object %s P#%u with nodeset while parent has none\n",
state->global->msgprefix, hwloc_obj_type_string(obj->type), obj->os_index);
goto error_with_object;
}
/* check NUMA nodes */
if (obj->type == HWLOC_OBJ_NUMANODE) {
if (!obj->nodeset) {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: invalid NUMA node object P#%u without nodeset\n",
state->global->msgprefix, obj->os_index);
goto error_with_object;
}
}
if (!hwloc_filter_check_keep_object(topology, obj)) {
/* Ignore this object instead of inserting it.
*
* Well, let the core ignore the root object later
* because we don't know yet if root has more than one child.
*/
if (parent)
ignored = 1;
}
if (parent && !ignored) {
/* root->parent is NULL, and root is already inserted */
hwloc_insert_object_by_parent(topology, parent, obj);
/* insert_object_by_parent() doesn't merge during insert, so obj is still valid */
}
if (data->version_major < 3 && obj->type == HWLOC_OBJ_OS_DEVICE) {
if (obj->attr->osdev.type == HWLOC_OBJ_OSDEV_STORAGE
&& ((obj->name && !strncmp(obj->name, "dax", 3))
|| (obj->subtype && !strcmp(obj->subtype, "CXLMem"))))
obj->attr->osdev.type = HWLOC_OBJ_OSDEV_MEMORY;
}
/* process object subnodes, if we found one win the above loop */
while (tag) {
int ret;
if (!strcmp(tag, "object")) {
hwloc_obj_t childobj = hwloc_alloc_setup_object(topology, HWLOC_OBJ_TYPE_MAX, HWLOC_UNKNOWN_INDEX);
childobj->parent = ignored ? parent : obj;
ret = hwloc__xml_import_object(topology, data, ignored ? parent : obj, childobj,
&childrengotignored,
&childstate);
} else {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: invalid special object child %s while looking for objects\n",
state->global->msgprefix, tag);
ret = -1;
}
if (ret < 0) {
if (parent && !ignored)
goto error;
else
goto error_with_object;
}
state->global->close_child(&childstate);
tag = NULL;
ret = state->global->find_child(state, &childstate, &tag);
if (ret < 0) {
if (parent && !ignored)
goto error;
else
goto error_with_object;
}
if (!ret)
break;
}
if (ignored) {
/* drop that object, and tell the parent that one child got ignored */
hwloc_free_unlinked_object(obj);
*gotignored = 1;
} else if (obj->first_child) {
/* now that all children are inserted, make sure they are in-order,
* so that the core doesn't have to deal with crappy children list.
*/
hwloc_obj_t cur, next;
for(cur = obj->first_child, next = cur->next_sibling;
next;
cur = next, next = next->next_sibling) {
/* If reordering is needed, at least one pair of consecutive children will be out-of-order.
* So just check pairs of consecutive children.
*
* We checked above that complete_cpuset is always set.
*/
if (hwloc_bitmap_compare_first(next->complete_cpuset, cur->complete_cpuset) < 0) {
/* next should be before cur */
if (!childrengotignored) {
static int reported = 0;
if (!reported && HWLOC_SHOW_CRITICAL_ERRORS()) {
hwloc__xml_import_report_outoforder(topology, next, cur);
reported = 1;
}
}
hwloc__reorder_children(obj);
break;
}
}
/* no need to reorder memory children as long as there are no intermediate memory objects
* that could cause reordering when filtered-out.
*/
}
return state->global->close_tag(state);
error_with_object:
if (parent)
/* root->parent is NULL, and root is already inserted. the caller will cleanup that root. */
hwloc_free_unlinked_object(obj);
error:
return -1;
}
static int
hwloc__xml_v2import_support(hwloc_topology_t topology,
hwloc__xml_import_state_t state)
{
char *name = NULL;
int value = 1; /* value is optional */
while (1) {
char *attrname, *attrvalue;
if (state->global->next_attr(state, &attrname, &attrvalue) < 0)
break;
if (!strcmp(attrname, "name"))
name = attrvalue;
else if (!strcmp(attrname, "value"))
value = atoi(attrvalue);
else {
if (hwloc__xml_verbose())
fprintf(stderr, "%s: ignoring unknown support attribute %s\n",
state->global->msgprefix, attrname);
}
}
if (name && topology->flags & HWLOC_TOPOLOGY_FLAG_IMPORT_SUPPORT) {
#ifdef HWLOC_DEBUG
HWLOC_BUILD_ASSERT(sizeof(struct hwloc_topology_support) == 4*sizeof(void*));
HWLOC_BUILD_ASSERT(sizeof(struct hwloc_topology_discovery_support) == 6);
HWLOC_BUILD_ASSERT(sizeof(struct hwloc_topology_cpubind_support) == 11);
HWLOC_BUILD_ASSERT(sizeof(struct hwloc_topology_membind_support) == 15);
HWLOC_BUILD_ASSERT(sizeof(struct hwloc_topology_misc_support) == 1);
#endif
#define DO(_cat,_name) if (!strcmp(#_cat "." #_name, name)) topology->support._cat->_name = value
DO(discovery,pu);
else DO(discovery,numa);
else DO(discovery,numa_memory);
else DO(discovery,disallowed_pu);
else DO(discovery,disallowed_numa);
else DO(discovery,cpukind_efficiency);
else DO(cpubind,set_thisproc_cpubind);
else DO(cpubind,get_thisproc_cpubind);
else DO(cpubind,set_proc_cpubind);
else DO(cpubind,get_proc_cpubind);
else DO(cpubind,set_thisthread_cpubind);
else DO(cpubind,get_thisthread_cpubind);
else DO(cpubind,set_thread_cpubind);
else DO(cpubind,get_thread_cpubind);
else DO(cpubind,get_thisproc_last_cpu_location);
else DO(cpubind,get_proc_last_cpu_location);
else DO(cpubind,get_thisthread_last_cpu_location);
else DO(membind,set_thisproc_membind);
else DO(membind,get_thisproc_membind);
else DO(membind,set_proc_membind);
else DO(membind,get_proc_membind);
else DO(membind,set_thisthread_membind);