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util-linux/sys-utils/lscpu-cputype.c

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#include <sys/utsname.h>
#include <sys/personality.h>
#if defined(HAVE_LIBRTAS)
# include <librtas.h>
#endif
#include "lscpu.h"
#include "fileutils.h"
#include "c_strtod.h"
/* Lookup a pattern and get the value for format "<pattern> : <key>"
*/
int lookup(char *line, char *pattern, char **value)
{
char *p, *v;
int len = strlen(pattern);
/* don't re-fill already found tags, first one wins */
if (!*line || *value)
return 0;
/* pattern */
if (strncmp(line, pattern, len))
return 0;
/* white spaces */
for (p = line + len; isspace(*p); p++);
/* separator */
if (*p != ':')
return 0;
/* white spaces */
for (++p; isspace(*p); p++);
/* value */
if (!*p)
return 0;
v = p;
/* end of value */
len = strlen(line) - 1;
for (p = line + len; isspace(*(p-1)); p--);
*p = '\0';
*value = xstrdup(v);
return 1;
}
struct lscpu_cputype *lscpu_new_cputype(void)
{
struct lscpu_cputype *ct;
ct = xcalloc(1, sizeof(struct lscpu_cputype));
ct->refcount = 1;
ct->dispatching = -1;
ct->freqboost = -1;
DBG(TYPE, ul_debugobj(ct, "alloc"));
return ct;
}
void lscpu_ref_cputype(struct lscpu_cputype *ct)
{
if (ct) {
ct->refcount++;
DBG(TYPE, ul_debugobj(ct, ">>> ref %d", ct->refcount));
}
}
void lscpu_unref_cputype(struct lscpu_cputype *ct)
{
if (!ct)
return;
/*DBG(TYPE, ul_debugobj(ct, ">>> unref %d", ct->refcount - 1));*/
if (--ct->refcount <= 0) {
DBG(TYPE, ul_debugobj(ct, " freeing %s/%s", ct->vendor, ct->model));
lscpu_cputype_free_topology(ct);
free(ct->vendor);
free(ct->bios_vendor);
free(ct->machinetype); /* s390 */
free(ct->family);
free(ct->model);
free(ct->modelname);
free(ct->bios_modelname);
free(ct->bios_family);
free(ct->revision); /* alternative for model (ppc) */
free(ct->stepping);
free(ct->bogomips);
free(ct->flags);
free(ct->mtid); /* maximum thread id (s390) */
free(ct->addrsz); /* address sizes */
free(ct->static_mhz);
free(ct->dynamic_mhz);
free(ct);
}
}
struct lscpu_cputype *lscpu_cputype_get_default(struct lscpu_cxt *cxt)
{
return cxt->cputypes ? cxt->cputypes[0] : NULL;
}
#define match(astr, bstr) \
((!astr && !bstr) || (astr && bstr && strcmp(astr, bstr) == 0))
struct lscpu_cputype *lscpu_add_cputype(struct lscpu_cxt *cxt, struct lscpu_cputype *ct)
{
DBG(TYPE, ul_debugobj(ct, "add new"));
cxt->cputypes = xrealloc(cxt->cputypes, (cxt->ncputypes + 1)
* sizeof(struct lscpu_cputype *));
cxt->cputypes[cxt->ncputypes] = ct;
cxt->ncputypes++;
lscpu_ref_cputype(ct);
return ct;
}
static void fprintf_cputypes(FILE *f, struct lscpu_cxt *cxt)
{
size_t i;
for (i = 0; i < cxt->ncputypes; i++) {
struct lscpu_cputype *ct = cxt->cputypes[i];
fprintf(f, "\n vendor: %s\n", ct->vendor);
fprintf(f, " machinetype: %s\n", ct->machinetype);
fprintf(f, " family: %s\n", ct->family);
fprintf(f, " model: %s\n", ct->model);
fprintf(f, " modelname: %s\n", ct->modelname);
fprintf(f, " revision: %s\n", ct->revision);
fprintf(f, " stepping: %s\n", ct->stepping);
fprintf(f, " mtid: %s\n", ct->mtid);
fprintf(f, " addrsz: %s\n", ct->addrsz);
}
}
enum {
CPUINFO_LINE_UNKNOWN, /* unknown line */
CPUINFO_LINE_CPUTYPE, /* line found in type_patterns[] */
CPUINFO_LINE_CPU, /* line found in cpu_patterns[] */
CPUINFO_LINE_CACHE /* line found in cache_pattern[] */
};
/* Describes /proc/cpuinfo fields */
struct cpuinfo_pattern {
int id; /* field ID */
int domain; /* CPUINFO_LINE_* */
const char *pattern; /* field name as used in /proc/cpuinfo */
size_t offset; /* offset in lscpu_cputype or lscpu_cpu struct */
};
/* field identifiers (field name may be different on different archs) */
enum {
PAT_ADDRESS_SIZES,
PAT_BOGOMIPS, /* global */
PAT_BOGOMIPS_CPU, /* per-cpu */
PAT_CPU,
PAT_FAMILY,
PAT_FEATURES,
PAT_FLAGS,
PAT_IMPLEMENTER,
PAT_MAX_THREAD_ID,
PAT_MHZ,
PAT_MHZ_DYNAMIC,
PAT_MHZ_STATIC,
PAT_MODEL,
PAT_MODEL_NAME,
PAT_PART,
PAT_PROCESSOR,
PAT_REVISION,
PAT_STEPPING,
PAT_TYPE,
PAT_VARIANT,
PAT_VENDOR,
PAT_CACHE
};
/*
* /proc/cpuinfo to lscpu_cputype conversion
*/
#define DEF_PAT_CPUTYPE(_str, _id, _member) \
{ \
.id = (_id), \
.domain = CPUINFO_LINE_CPUTYPE, \
.pattern = (_str), \
.offset = offsetof(struct lscpu_cputype, _member), \
}
static const struct cpuinfo_pattern type_patterns[] =
{
/* Sort by fields name! */
DEF_PAT_CPUTYPE( "ASEs implemented", PAT_FLAGS, flags), /* mips */
DEF_PAT_CPUTYPE( "BogoMIPS", PAT_BOGOMIPS, bogomips), /* aarch64 */
DEF_PAT_CPUTYPE( "CPU implementer", PAT_IMPLEMENTER,vendor), /* ARM and aarch64 */
DEF_PAT_CPUTYPE( "CPU part", PAT_PART, model), /* ARM and aarch64 */
DEF_PAT_CPUTYPE( "CPU revision", PAT_REVISION, revision), /* aarch64 */
DEF_PAT_CPUTYPE( "CPU variant", PAT_VARIANT, stepping), /* aarch64 */
DEF_PAT_CPUTYPE( "Features", PAT_FEATURES, flags), /* aarch64 */
DEF_PAT_CPUTYPE( "address sizes", PAT_ADDRESS_SIZES, addrsz),/* x86 */
DEF_PAT_CPUTYPE( "bogomips per cpu", PAT_BOGOMIPS, bogomips), /* s390 */
DEF_PAT_CPUTYPE( "cpu", PAT_CPU, modelname), /* ppc, sparc */
DEF_PAT_CPUTYPE( "cpu family", PAT_FAMILY, family),
DEF_PAT_CPUTYPE( "cpu model", PAT_MODEL, model), /* mips */
DEF_PAT_CPUTYPE( "family", PAT_FAMILY, family),
DEF_PAT_CPUTYPE( "features", PAT_FEATURES, flags), /* s390 */
DEF_PAT_CPUTYPE( "flags", PAT_FLAGS, flags), /* x86 */
DEF_PAT_CPUTYPE( "max thread id", PAT_MAX_THREAD_ID, mtid), /* s390 */
DEF_PAT_CPUTYPE( "model", PAT_MODEL, model),
DEF_PAT_CPUTYPE( "model name", PAT_MODEL_NAME, modelname),
DEF_PAT_CPUTYPE( "revision", PAT_REVISION, revision),
DEF_PAT_CPUTYPE( "stepping", PAT_STEPPING, stepping),
DEF_PAT_CPUTYPE( "type", PAT_TYPE, flags), /* sparc64 */
DEF_PAT_CPUTYPE( "vendor", PAT_VENDOR, vendor),
DEF_PAT_CPUTYPE( "vendor_id", PAT_VENDOR, vendor), /* s390 */
};
/*
* /proc/cpuinfo to lscpu_cpu conversion
*/
#define DEF_PAT_CPU(_str, _id, _member) \
{ \
.id = (_id), \
.domain = CPUINFO_LINE_CPU, \
.pattern = (_str), \
.offset = offsetof(struct lscpu_cpu, _member), \
}
static const struct cpuinfo_pattern cpu_patterns[] =
{
/* Sort by fields name! */
DEF_PAT_CPU( "bogomips", PAT_BOGOMIPS_CPU, bogomips),
DEF_PAT_CPU( "cpu MHz", PAT_MHZ, mhz),
DEF_PAT_CPU( "cpu MHz dynamic", PAT_MHZ_DYNAMIC, dynamic_mhz), /* s390 */
DEF_PAT_CPU( "cpu MHz static", PAT_MHZ_STATIC, static_mhz), /* s390 */
DEF_PAT_CPU( "cpu number", PAT_PROCESSOR, logical_id), /* s390 */
DEF_PAT_CPU( "processor", PAT_PROCESSOR, logical_id),
};
/*
* /proc/cpuinfo to lscpu_cache conversion
*/
#define DEF_PAT_CACHE(_str, _id) \
{ \
.id = (_id), \
.domain = CPUINFO_LINE_CACHE, \
.pattern = (_str) \
}
static const struct cpuinfo_pattern cache_patterns[] =
{
/* Sort by fields name! */
DEF_PAT_CACHE("cache", PAT_CACHE),
};
#define CPUTYPE_PATTERN_BUFSZ 32
static int cmp_pattern(const void *a0, const void *b0)
{
const struct cpuinfo_pattern
*a = (const struct cpuinfo_pattern *) a0,
*b = (const struct cpuinfo_pattern *) b0;
return strcmp(a->pattern, b->pattern);
}
struct cpuinfo_parser {
struct lscpu_cxt *cxt;
struct lscpu_cpu *curr_cpu;
struct lscpu_cputype *curr_type;
unsigned int curr_type_added : 1;
};
static int is_different_cputype(struct lscpu_cputype *ct, size_t offset, const char *value)
{
switch (offset) {
case offsetof(struct lscpu_cputype, vendor):
return ct->vendor && value && strcmp(ct->vendor, value) != 0;
case offsetof(struct lscpu_cputype, model):
return ct->model && value && strcmp(ct->model, value) != 0;
case offsetof(struct lscpu_cputype, modelname):
return ct->modelname && value && strcmp(ct->modelname, value) != 0;
case offsetof(struct lscpu_cputype, stepping):
return ct->stepping && value && strcmp(ct->stepping, value) != 0;
}
return 0;
}
/* canonicalize @str -- remove number at the end return the
* number by @keynum. This is usable for example for "processor 5" or "cache1"
* cpuinfo lines */
static char *key_cleanup(char *str, int *keynum)
{
size_t sz = rtrim_whitespace((unsigned char *)str);
size_t i;
if (!sz)
return str;
for (i = sz; i > 0; i--) {
if (!isdigit(str[i - 1]))
break;
}
if (i < sz) {
char *end = NULL, *p = str + i;
int n;
errno = 0;
n = strtol(p, &end, 10);
if (errno || !end || end == p)
return str;
*keynum = n;
str[i] = '\0';
rtrim_whitespace((unsigned char *)str);
}
return str;
}
static const struct cpuinfo_pattern *cpuinfo_parse_line(char *str, char **value, int *keynum)
{
struct cpuinfo_pattern key = { .id = 0 }, *pat;
char *p, *v;
char buf[CPUTYPE_PATTERN_BUFSZ] = { 0 };
DBG(GATHER, ul_debug("parse \"%s\"", str));
if (!str || !*str)
return NULL;
p = (char *) skip_blank(str);
if (!p || !*p)
return NULL;
v = strchr(p, ':');
if (!v || !*v)
return NULL;
/* prepare name of the field */
xstrncpy(buf, p, sizeof(buf));
buf[v - p] = '\0';
v++;
/* prepare value */
v = (char *) skip_space(v);
if (!v || !*v)
return NULL;
key.pattern = key_cleanup(buf, keynum);
/* CPU-type */
if ((pat = bsearch(&key, type_patterns,
ARRAY_SIZE(type_patterns),
sizeof(struct cpuinfo_pattern),
cmp_pattern)))
goto found;
/* CPU */
if ((pat = bsearch(&key, cpu_patterns,
ARRAY_SIZE(cpu_patterns),
sizeof(struct cpuinfo_pattern),
cmp_pattern)))
goto found;
/* CACHE */
if ((pat = bsearch(&key, cache_patterns,
ARRAY_SIZE(cache_patterns),
sizeof(struct cpuinfo_pattern),
cmp_pattern)))
goto found;
return NULL;
found:
rtrim_whitespace((unsigned char *) v);
*value = v;
return pat;
}
/* Parse extra cache lines contained within /proc/cpuinfo but which are not
* part of the cache topology information within the sysfs filesystem. This is
* true for all shared caches on e.g. s390. When there are layers of
* hypervisors in between it is not knows which CPUs share which caches.
* Therefore information about shared caches is only available in
* /proc/cpuinfo. Format is:
*
* cache<nr> : level=<lvl> type=<type> scope=<scope> size=<size> line_size=<lsz> associativity=<as>
*
* the cache<nr> part is parsed in cpuinfo_parse_line, in this function parses part after ":".
*/
static int cpuinfo_parse_cache(struct lscpu_cxt *cxt, int keynum, char *data)
{
struct lscpu_cache *cache;
long long size;
char *p, type;
int level;
unsigned int line_size, associativity;
DBG(GATHER, ul_debugobj(cxt, " parse cpuinfo cache '%s'", data));
p = strstr(data, "scope=") + 6;
/* Skip private caches, also present in sysfs */
if (!p || strncmp(p, "Private", 7) == 0)
return 0;
p = strstr(data, "level=");
if (!p || sscanf(p, "level=%d", &level) != 1)
return 0;
p = strstr(data, "type=") + 5;
if (!p || !*p)
return 0;
type = 0;
if (strncmp(p, "Data", 4) == 0)
type = 'd';
else if (strncmp(p, "Instruction", 11) == 0)
type = 'i';
else if (strncmp(p, "Unified", 7) == 0)
type = 'u';
p = strstr(data, "size=");
if (!p || sscanf(p, "size=%lld", &size) != 1)
return 0;
p = strstr(data, "line_size=");
if (!p || sscanf(p, "line_size=%u", &line_size) != 1)
return 0;
p = strstr(data, "associativity=");
if (!p || sscanf(p, "associativity=%u", &associativity) != 1)
return 0;
cxt->necaches++;
cxt->ecaches = xrealloc(cxt->ecaches,
cxt->necaches * sizeof(struct lscpu_cache));
cache = &cxt->ecaches[cxt->necaches - 1];
memset(cache, 0 , sizeof(*cache));
if (type == 'i' || type == 'd')
xasprintf(&cache->name, "L%d%c", level, type);
else
xasprintf(&cache->name, "L%d", level);
cache->nth = keynum;
cache->level = level;
cache->size = size * 1024;
cache->ways_of_associativity = associativity;
cache->coherency_line_size = line_size;
/* Number of sets for s390. For safety, just check divide by zero */
cache->number_of_sets = line_size ? (cache->size / line_size): 0;
cache->number_of_sets = associativity ? (cache->number_of_sets / associativity) : 0;
cache->type = type == 'i' ? xstrdup("Instruction") :
type == 'd' ? xstrdup("Data") :
type == 'u' ? xstrdup("Unified") : NULL;
return 1;
}
int lscpu_read_cpuinfo(struct lscpu_cxt *cxt)
{
FILE *fp;
char buf[BUFSIZ];
size_t i;
struct lscpu_cputype *ct;
struct cpuinfo_parser _pr = { .cxt = cxt }, *pr = &_pr;
assert(cxt->npossibles); /* lscpu_create_cpus() required */
assert(cxt->cpus);
DBG(GATHER, ul_debugobj(cxt, "reading cpuinfo"));
fp = ul_path_fopen(cxt->procfs, "r", "cpuinfo");
if (!fp)
err(EXIT_FAILURE, _("cannot open %s"), "/proc/cpuinfo");
do {
int keynum = -1;
char *p = NULL, *value = NULL;
const struct cpuinfo_pattern *pattern;
if (fgets(buf, sizeof(buf), fp) != NULL)
p = (char *) skip_space(buf);
if (p == NULL || (*buf && !*p)) {
/* Blank line separates information */
if (p == NULL)
break; /* fgets() returns nothing; EOF */
continue;
}
rtrim_whitespace((unsigned char *) buf);
/* parse */
pattern = cpuinfo_parse_line(p, &value, &keynum);
if (!pattern) {
DBG(GATHER, ul_debug("'%s' not found", buf));
continue;
}
/* set data */
switch (pattern->domain) {
case CPUINFO_LINE_CPU:
if (pattern->id == PAT_PROCESSOR) {
/* switch CPU */
int id = 0;
if (keynum >= 0)
id = keynum;
else {
uint32_t n;
if (ul_strtou32(value, &n, 10) == 0)
id = n;
}
if (pr->curr_cpu && pr->curr_type)
lscpu_cpu_set_type(pr->curr_cpu, pr->curr_type);
lscpu_unref_cpu(pr->curr_cpu);
pr->curr_cpu = lscpu_get_cpu(cxt, id);
if (!pr->curr_cpu)
DBG(GATHER, ul_debug("*** cpu ID '%d' undefined", id));
else
DBG(GATHER, ul_debug(" switch to CPU %d", id));
lscpu_ref_cpu(pr->curr_cpu);
break;
}
if (!pr->curr_cpu)
DBG(GATHER, ul_debug("*** cpu data before cpu ID"));
else
strdup_to_offset(pr->curr_cpu, pattern->offset, value);
if (pattern->id == PAT_MHZ_DYNAMIC && pr->curr_type && !pr->curr_type->dynamic_mhz)
pr->curr_type->dynamic_mhz = xstrdup(value);
if (pattern->id == PAT_MHZ_STATIC && pr->curr_type && !pr->curr_type->static_mhz)
pr->curr_type->static_mhz = xstrdup(value);
if (pattern->id == PAT_BOGOMIPS_CPU && pr->curr_type && !pr->curr_type->bogomips)
pr->curr_type->bogomips = xstrdup(value);
if (pattern->id == PAT_MHZ && pr->curr_cpu && value) {
errno = 0;
pr->curr_cpu->mhz_cur_freq = (float) c_strtod(value, NULL);
if (errno)
pr->curr_cpu->mhz_cur_freq = 0;
}
break;
case CPUINFO_LINE_CPUTYPE:
if (pr->curr_type && is_different_cputype(pr->curr_type, pattern->offset, value)) {
lscpu_unref_cputype(pr->curr_type);
pr->curr_type = NULL;
}
if (!pr->curr_type) {
pr->curr_type = lscpu_new_cputype();
lscpu_add_cputype(cxt, pr->curr_type);
}
strdup_to_offset(pr->curr_type, pattern->offset, value);
break;
case CPUINFO_LINE_CACHE:
if (pattern->id != PAT_CACHE)
break;
cpuinfo_parse_cache(cxt, keynum, value);
break;
}
} while (1);
DBG(GATHER, fprintf_cputypes(stderr, cxt));
if (pr->curr_cpu && !pr->curr_cpu->type)
lscpu_cpu_set_type(pr->curr_cpu, pr->curr_type);
lscpu_unref_cputype(pr->curr_type);
lscpu_unref_cpu(pr->curr_cpu);
fclose(fp);
lscpu_sort_caches(cxt->ecaches, cxt->necaches);
/* Set the default type to CPUs which are missing (or not parsed)
* in cpuinfo */
ct = lscpu_cputype_get_default(cxt);
for (i = 0; ct && i < cxt->npossibles; i++) {
struct lscpu_cpu *cpu = cxt->cpus[i];
if (cpu && !cpu->type)
lscpu_cpu_set_type(cpu, ct);
}
return 0;
}
struct lscpu_arch *lscpu_read_architecture(struct lscpu_cxt *cxt)
{
struct utsname utsbuf;
struct lscpu_arch *ar;
struct lscpu_cputype *ct;
assert(cxt);
DBG(GATHER, ul_debug("reading architecture"));
if (uname(&utsbuf) == -1)
err(EXIT_FAILURE, _("error: uname failed"));
ar = xcalloc(1, sizeof(*cxt->arch));
ar->name = xstrdup(utsbuf.machine);
if (cxt->noalive)
/* reading info from any /{sys,proc} dump, don't mix it with
* information about our real CPU */
;
else {
#if defined(__alpha__) || defined(__ia64__)
ar->bit64 = 1; /* 64bit platforms only */
#endif
/* platforms with 64bit flag in /proc/cpuinfo, define
* 32bit default here */
#if defined(__i386__) || defined(__x86_64__) || \
defined(__s390x__) || defined(__s390__) || defined(__sparc_v9__)
ar->bit32 = 1;
#endif
#if defined(__aarch64__)
{
/* personality() is the most reliable way (since 4.7)
* to determine aarch32 support */
int pers = personality(PER_LINUX32);
if (pers != -1) {
personality(pers);
ar->bit32 = 1;
}
ar->bit64 = 1;
}
#endif
}
ct = lscpu_cputype_get_default(cxt);
if (ct && ct->flags) {
char buf[BUFSIZ];
snprintf(buf, sizeof(buf), " %s ", ct->flags);
if (strstr(buf, " lm "))
ar->bit32 = 1, ar->bit64 = 1; /* x86_64 */
if (strstr(buf, " zarch "))
ar->bit32 = 1, ar->bit64 = 1; /* s390x */
if (strstr(buf, " sun4v ") || strstr(buf, " sun4u "))
ar->bit32 = 1, ar->bit64 = 1; /* sparc64 */
}
if (ar->name && !cxt->noalive) {
if (strcmp(ar->name, "ppc64") == 0)
ar->bit32 = 1, ar->bit64 = 1;
else if (strcmp(ar->name, "ppc") == 0)
ar->bit32 = 1;
}
DBG(GATHER, ul_debugobj(ar, "arch: name=%s %s %s",
ar->name,
ar->bit64 ? "64-bit" : "",
ar->bit64 ? "32-bit" : ""));
return ar;
}
void lscpu_free_architecture(struct lscpu_arch *ar)
{
if (!ar)
return;
free(ar->name);
free(ar);
}
int lscpu_read_cpulists(struct lscpu_cxt *cxt)
{
cpu_set_t *cpuset = NULL;
assert(cxt);
DBG(GATHER, ul_debugobj(cxt, "reading cpulists"));
if (ul_path_read_s32(cxt->syscpu, &cxt->maxcpus, "kernel_max") == 0)
/* note that kernel_max is maximum index [NR_CPUS-1] */
cxt->maxcpus += 1;
else if (!cxt->noalive)
/* the root is '/' so we are working with data from the current kernel */
cxt->maxcpus = get_max_number_of_cpus();
if (cxt->maxcpus <= 0)
/* error or we are reading some /sys snapshot instead of the
* real /sys, let's use any crazy number... */
cxt->maxcpus = 2048;
cxt->setsize = CPU_ALLOC_SIZE(cxt->maxcpus);
/* create CPUs from possible mask */
if (ul_path_readf_cpulist(cxt->syscpu, &cpuset, cxt->maxcpus, "possible") == 0) {
lscpu_create_cpus(cxt, cpuset, cxt->setsize);
cpuset_free(cpuset);
cpuset = NULL;
} else
err(EXIT_FAILURE, _("failed to determine number of CPUs: %s"),
_PATH_SYS_CPU "/possible");
/* get mask for present CPUs */
if (ul_path_readf_cpulist(cxt->syscpu, &cxt->present, cxt->maxcpus, "present") == 0)
cxt->npresents = CPU_COUNT_S(cxt->setsize, cxt->present);
/* get mask for online CPUs */
if (ul_path_readf_cpulist(cxt->syscpu, &cxt->online, cxt->maxcpus, "online") == 0)
cxt->nonlines = CPU_COUNT_S(cxt->setsize, cxt->online);
return 0;
}
#if defined(HAVE_LIBRTAS)
# define PROCESSOR_MODULE_INFO 43
static int strbe16toh(const char *buf, int offset)
{
return (buf[offset] << 8) + buf[offset+1];
}
#endif
/* some extra information for the default CPU type */
int lscpu_read_archext(struct lscpu_cxt *cxt)
{
FILE *f;
char buf[BUFSIZ];
struct lscpu_cputype *ct;
DBG(GATHER, ul_debugobj(cxt, "reading extra arch info"));
assert(cxt);
ct = lscpu_cputype_get_default(cxt);
if (!ct)
return -EINVAL;
/* get dispatching mode */
if (ul_path_read_s32(cxt->syscpu, &ct->dispatching, "dispatching") != 0)
ct->dispatching = -1;
/* get cpufreq boost mode */
if (ul_path_read_s32(cxt->syscpu, &ct->freqboost, "cpufreq/boost") != 0)
ct->freqboost = -1;
if ((f = ul_path_fopen(cxt->procfs, "r", "sysinfo"))) {
while (fgets(buf, sizeof(buf), f) != NULL) {
if (lookup(buf, "Type", &ct->machinetype))
break;
}
fclose(f);
}
#if defined(HAVE_LIBRTAS)
/* Get PowerPC specific info */
if (!cxt->noalive) {
int rc, len, ntypes;
ct->physsockets = ct->physchips = ct->physcoresperchip = 0;
rc = rtas_get_sysparm(PROCESSOR_MODULE_INFO, sizeof(buf), buf);
if (rc < 0)
goto nortas;
len = strbe16toh(buf, 0);
if (len < 8)
goto nortas;
ntypes = strbe16toh(buf, 2);
if (!ntypes)
goto nortas;
ct->physsockets = strbe16toh(buf, 4);
ct->physchips = strbe16toh(buf, 6);
ct->physcoresperchip = strbe16toh(buf, 8);
}
nortas:
#endif
return 0;
}
static int cmp_vulnerability_name(const void *a0, const void *b0)
{
const struct lscpu_vulnerability
*a = (const struct lscpu_vulnerability *) a0,
*b = (const struct lscpu_vulnerability *) b0;
return strcmp(a->name, b->name);
}
int lscpu_read_vulnerabilities(struct lscpu_cxt *cxt)
{
struct dirent *d;
DIR *dir;
size_t n = 0;
assert(cxt);
DBG(GATHER, ul_debugobj(cxt, "reading vulnerabilities"));
dir = ul_path_opendir(cxt->syscpu, "vulnerabilities");
if (!dir)
return 0;
cxt->nvuls = n = 0;
while (xreaddir(dir))
n++;
if (!n) {
closedir(dir);
return 0;
}
rewinddir(dir);
cxt->vuls = xcalloc(n, sizeof(struct lscpu_vulnerability));
while (cxt->nvuls < n && (d = xreaddir(dir))) {
char *str, *p;
struct lscpu_vulnerability *vu;
#ifdef _DIRENT_HAVE_D_TYPE
if (d->d_type == DT_DIR || d->d_type == DT_UNKNOWN)
continue;
#endif
if (ul_path_readf_string(cxt->syscpu, &str,
"vulnerabilities/%s", d->d_name) <= 0)
continue;
vu = &cxt->vuls[cxt->nvuls++];
/* Name */
vu->name = xstrdup(d->d_name);
*vu->name = toupper(*vu->name);
strrep(vu->name, '_', ' ');
/* Description */
vu->text = str;
p = (char *) startswith(vu->text, "Mitigation");
if (p) {
*p = ';';
strrem(vu->text, ':');
}
}
closedir(dir);
qsort(cxt->vuls, cxt->nvuls,
sizeof(struct lscpu_vulnerability), cmp_vulnerability_name);
return 0;
}
static inline int is_node_dirent(struct dirent *d)
{
return
d &&
#ifdef _DIRENT_HAVE_D_TYPE
(d->d_type == DT_DIR || d->d_type == DT_UNKNOWN) &&
#endif
strncmp(d->d_name, "node", 4) == 0 &&
isdigit_string(d->d_name + 4);
}
static int nodecmp(const void *ap, const void *bp)
{
int *a = (int *) ap, *b = (int *) bp;
return *a - *b;
}
int lscpu_read_numas(struct lscpu_cxt *cxt)
{
size_t i = 0;
DIR *dir;
struct dirent *d;
struct path_cxt *sys;
assert(!cxt->nnodes);
sys = ul_new_path(_PATH_SYS_NODE);
if (!sys)
err(EXIT_FAILURE, _("failed to initialize %s handler"), _PATH_SYS_NODE);
ul_path_set_prefix(sys, cxt->prefix);
dir = ul_path_opendir(sys, NULL);
if (!dir)
goto done;
while ((d = readdir(dir))) {
if (is_node_dirent(d))
cxt->nnodes++;
}
if (!cxt->nnodes) {
closedir(dir);
goto done;
}
cxt->nodemaps = xcalloc(cxt->nnodes, sizeof(cpu_set_t *));
cxt->idx2nodenum = xmalloc(cxt->nnodes * sizeof(int));
rewinddir(dir);
for (i = 0; (d = readdir(dir)) && i < cxt->nnodes;) {
if (is_node_dirent(d))
cxt->idx2nodenum[i++] = strtol_or_err(((d->d_name) + 4),
_("Failed to extract the node number"));
}
closedir(dir);
qsort(cxt->idx2nodenum, cxt->nnodes, sizeof(int), nodecmp);
/* information about how nodes share different CPUs */
for (i = 0; i < cxt->nnodes; i++)
ul_path_readf_cpuset(sys, &cxt->nodemaps[i], cxt->maxcpus,
"node%d/cpumap", cxt->idx2nodenum[i]);
done:
DBG(GATHER, ul_debugobj(cxt, "read %zu numas", cxt->nnodes));
ul_unref_path(sys);
return 0;
}
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