long
sysconfupd(int name)
{
long *ptr = sysconftab - MINSYSCONF;
long ret = -1;
switch (name) {
case _SC_NPROCESSORS_ONLN:
ret = ptr[_SC_NPROCESSORS_ONLN] = get_nprocs();
break;
case _SC_NPROCESSORS_CONF:
ret = ptr[_SC_NPROCESSORS_CONF] = get_nprocs_conf();
break;
case _SC_AVPHYS_PAGES:
ret = ptr[_SC_AVPHYS_PAGES] = get_avphys_pages();
break;
case _SC_PHYS_PAGES:
ret = ptr[_SC_PHYS_PAGES] = get_phys_pages();
break;
}
return ret;
}
int info_print()
{
char str[STR_SIZE];
unsigned int a, b, c, d, max;
char brand_string[4*4*3 + 1];
/* Hostname */
gethostname(str, STR_SIZE);
OM_COMMENT; printf("local hostname: %s\n", str);
/* CPU info */
asm volatile ( "mov $0x80000000, %%eax\ncpuid" : "=a"(a), "=b"(b), "=c"(c), "=d"(d) );
max = a;
if (max >= 0x80000002) {
asm volatile ( "mov $0x80000002, %%eax\ncpuid" : "=a"(((unsigned int *)&brand_string)[0]), "=b"(((unsigned int *)&brand_string)[1]), "=c"(((unsigned int *)&brand_string)[2]), "=d"(((unsigned int *)&brand_string)[3]) );
}
if (max >= 0x80000003) {
asm volatile ( "mov $0x80000003, %%eax\ncpuid" : "=a"(((unsigned int *)&brand_string)[4]), "=b"(((unsigned int *)&brand_string)[5]), "=c"(((unsigned int *)&brand_string)[6]), "=d"(((unsigned int *)&brand_string)[7]) );
brand_string[4*4*2] = '\0';
}
if (max >= 0x80000004) {
asm volatile ( "mov $0x80000004, %%eax\ncpuid" : "=a"(((unsigned int *)&brand_string)[8]), "=b"(((unsigned int *)&brand_string)[9]), "=c"(((unsigned int *)&brand_string)[10]), "=d"(((unsigned int *)&brand_string)[11]) );
brand_string[4*4*3] = '\0';
}
OM_COMMENT; printf("CPU brand string: %s\n", brand_string);
/* total memory */
// ...
OM_COMMENT; printf("Invariant TSC: %d\n", information.invariant_tsc);
OM_COMMENT; printf("TSC per usec: %ld\n", information.tsc_per_usec);
OM_COMMENT; printf("TSC read overhead: %ld\n", information.tsc_diff);
if (information.nbr_cpus > -1) {
OM_COMMENT; printf("Nbr. of CPUs: %d\n", information.nbr_cpus);
OM_COMMENT; printf("Nbr. CPUs conf.: %d\n", get_nprocs_conf()); /* sys/sysinfo.h */
//OM_COMMENT; printf("Nbr. phys. pages: %ld\n", get_phys_pages());
//OM_COMMENT; printf("Nbr. avail. p. p.:%ld\n", get_avphys_pages());
OM_COMMENT; printf("Mem in System: %ld MiB\n", get_phys_pages() * 4 / 1024); /* sys/sysinfo.h */
OM_COMMENT; printf("Mem available: %ld MiB\n", get_avphys_pages() * 4 / 1024); /* sys/sysinfo.h */
}
/* Optimizing */
#if defined (CC) && defined(OPT)
OM_COMMENT; printf("Compiler: %s -O%s\n", CC, OPT);
#endif
return 0;
}
long long unsigned int getFreePhysicalMemory()
{
#ifdef _WIN32
MEMORYSTATUSEX status;
status.dwLength = sizeof(status);
GlobalMemoryStatusEx(&status);
return status.ullTotalPhys;
#elif __APPLE__
int mib[2];
uint64_t physical_memory;
size_t length;
// Get the Physical memory size
mib[0] = CTL_HW;
mib[1] = HW_USERMEM; // HW_MEMSIZE -> physical memory
length = sizeof(uint64_t);
sysctl(mib, 2, &physical_memory, &length, NULL, 0);
return physical_memory;
#elif __GNUC__
return get_avphys_pages() * getpagesize();
#endif
}
void mem_stats ()
{
//totals
#ifdef __GNUC__
long pagesize = getpagesize();
long pages = get_phys_pages();
long av_pages = get_avphys_pages();
#else
long pagesize = sysinfo(_SC_PAGESIZE);
long pages = sysinfo(_SC_PHYS_PAGES);
long av_pages = sysinfo(_SC_AVPHYS_PAGES);
#endif
std::cout << av_pages << "/" << pages << " pages of size " << pagesize << " available" << std::endl;
//usage
struct mallinfo info = mallinfo();
std::cout << " malloc allocated " << info.uordblks << " chunks" << std::endl;
std::cout << " there are " << info.ordblks << " unused chunks" << std::endl;
std::cout << " sbrk allocated " << info.arena << " bytes" << std::endl;
std::cout << " mmap allocated " << info.hblks << " chunks = "
<< info.hblkhd << " bytes" << std::endl;
}
/* Get the value of the system variable NAME. */
long int sysconf(int name)
{
struct rlimit rlimit;
switch (name)
{
default:
__set_errno(EINVAL);
return -1;
case _SC_ARG_MAX:
/* Use getrlimit to get the stack limit. */
if (getrlimit (RLIMIT_STACK, &rlimit) == 0)
return MAX (legacy_ARG_MAX, rlimit.rlim_cur / 4);
#if defined ARG_MAX
return ARG_MAX;
#else
return legacy_ARG_MAX;
#endif
case _SC_CHILD_MAX:
#ifdef CHILD_MAX
return CHILD_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_CLK_TCK:
/* Can't use CLK_TCK here since that calls __sysconf(_SC_CLK_TCK) */
return __UCLIBC_CLK_TCK_CONST;
case _SC_NGROUPS_MAX:
#ifdef NGROUPS_MAX
return NGROUPS_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_OPEN_MAX:
RETURN_FUNCTION(getdtablesize());
case _SC_STREAM_MAX:
#ifdef STREAM_MAX
return STREAM_MAX;
#else
return FOPEN_MAX;
#endif
case _SC_TZNAME_MAX:
return _POSIX_TZNAME_MAX;
case _SC_JOB_CONTROL:
#ifdef _POSIX_JOB_CONTROL
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_SAVED_IDS:
#ifdef _POSIX_SAVED_IDS
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_REALTIME_SIGNALS:
#ifdef _POSIX_REALTIME_SIGNALS
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_PRIORITY_SCHEDULING:
#ifdef _POSIX_PRIORITY_SCHEDULING
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_TIMERS:
#ifdef _POSIX_TIMERS
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_ASYNCHRONOUS_IO:
#ifdef _POSIX_ASYNCHRONOUS_IO
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_PRIORITIZED_IO:
#ifdef _POSIX_PRIORITIZED_IO
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_SYNCHRONIZED_IO:
#ifdef _POSIX_SYNCHRONIZED_IO
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_FSYNC:
#ifdef _POSIX_FSYNC
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_MAPPED_FILES:
#ifdef _POSIX_MAPPED_FILES
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_MEMLOCK:
#ifdef _POSIX_MEMLOCK
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_MEMLOCK_RANGE:
#ifdef _POSIX_MEMLOCK_RANGE
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_MEMORY_PROTECTION:
#ifdef _POSIX_MEMORY_PROTECTION
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_MESSAGE_PASSING:
#ifdef _POSIX_MESSAGE_PASSING
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_SEMAPHORES:
#ifdef _POSIX_SEMAPHORES
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_SHARED_MEMORY_OBJECTS:
#ifdef _POSIX_SHARED_MEMORY_OBJECTS
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_VERSION:
return _POSIX_VERSION;
case _SC_PAGESIZE:
#if defined(GETPAGESIZE_IS_DYNAMIC) && (GETPAGESIZE_IS_DYNAMIC == 1)
RETURN_FUNCTION(getpagesize());
#else
return getpagesize(); /* note: currently this is not dynamic */
#endif
case _SC_AIO_LISTIO_MAX:
#ifdef AIO_LISTIO_MAX
return AIO_LISTIO_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_AIO_MAX:
#ifdef AIO_MAX
return AIO_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_AIO_PRIO_DELTA_MAX:
#ifdef AIO_PRIO_DELTA_MAX
return AIO_PRIO_DELTA_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_DELAYTIMER_MAX:
#ifdef DELAYTIMER_MAX
return DELAYTIMER_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_MQ_OPEN_MAX:
#ifdef MQ_OPEN_MAX
return MQ_OPEN_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_MQ_PRIO_MAX:
#ifdef MQ_PRIO_MAX
return MQ_PRIO_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_RTSIG_MAX:
#ifdef RTSIG_MAX
return RTSIG_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_SEM_NSEMS_MAX:
#ifdef SEM_NSEMS_MAX
return SEM_NSEMS_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_SEM_VALUE_MAX:
#ifdef SEM_VALUE_MAX
return SEM_VALUE_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_SIGQUEUE_MAX:
#ifdef SIGQUEUE_MAX
return SIGQUEUE_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_TIMER_MAX:
#ifdef TIMER_MAX
return TIMER_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_BC_BASE_MAX:
#ifdef BC_BASE_MAX
return BC_BASE_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_BC_DIM_MAX:
#ifdef BC_DIM_MAX
return BC_DIM_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_BC_SCALE_MAX:
#ifdef BC_SCALE_MAX
return BC_SCALE_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_BC_STRING_MAX:
#ifdef BC_STRING_MAX
return BC_STRING_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_COLL_WEIGHTS_MAX:
#ifdef COLL_WEIGHTS_MAX
return COLL_WEIGHTS_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_EQUIV_CLASS_MAX:
#ifdef EQUIV_CLASS_MAX
return EQUIV_CLASS_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_EXPR_NEST_MAX:
#ifdef EXPR_NEST_MAX
return EXPR_NEST_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_LINE_MAX:
#ifdef LINE_MAX
return LINE_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_RE_DUP_MAX:
#ifdef RE_DUP_MAX
return RE_DUP_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_CHARCLASS_NAME_MAX:
#ifdef CHARCLASS_NAME_MAX
return CHARCLASS_NAME_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_PII:
#ifdef _POSIX_PII
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_PII_XTI:
#ifdef _POSIX_PII_XTI
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_PII_SOCKET:
#ifdef _POSIX_PII_SOCKET
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_PII_INTERNET:
#ifdef _POSIX_PII_INTERNET
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_PII_OSI:
#ifdef _POSIX_PII_OSI
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_POLL:
#ifdef _POSIX_POLL
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_SELECT:
#ifdef _POSIX_SELECT
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_UIO_MAXIOV:
#ifdef UIO_MAXIOV
return UIO_MAXIOV;
#else
RETURN_NEG_1;
#endif
case _SC_PII_INTERNET_STREAM:
#ifdef _POSIX_PII_INTERNET_STREAM
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_PII_INTERNET_DGRAM:
#ifdef _POSIX_PII_INTERNET_DGRAM
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_PII_OSI_COTS:
#ifdef _POSIX_PII_OSI_COTS
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_PII_OSI_CLTS:
#ifdef _POSIX_PII_OSI_CLTS
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_PII_OSI_M:
#ifdef _POSIX_PII_OSI_M
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_T_IOV_MAX:
#ifdef _T_IOV_MAX
return _T_IOV_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_2_VERSION:
return _POSIX2_VERSION;
case _SC_2_C_BIND:
#ifdef _POSIX2_C_BIND
return _POSIX2_C_BIND;
#else
RETURN_NEG_1;
#endif
case _SC_2_C_DEV:
#ifdef _POSIX2_C_DEV
return _POSIX2_C_DEV;
#else
RETURN_NEG_1;
#endif
case _SC_2_C_VERSION:
#ifdef _POSIX2_C_VERSION
return _POSIX2_C_VERSION;
#else
RETURN_NEG_1;
#endif
case _SC_2_FORT_DEV:
#ifdef _POSIX2_FORT_DEV
return _POSIX2_FORT_DEV;
#else
RETURN_NEG_1;
#endif
case _SC_2_FORT_RUN:
#ifdef _POSIX2_FORT_RUN
return _POSIX2_FORT_RUN;
#else
RETURN_NEG_1;
#endif
case _SC_2_LOCALEDEF:
#ifdef _POSIX2_LOCALEDEF
return _POSIX2_LOCALEDEF;
#else
RETURN_NEG_1;
#endif
case _SC_2_SW_DEV:
#ifdef _POSIX2_SW_DEV
return _POSIX2_SW_DEV;
#else
RETURN_NEG_1;
#endif
case _SC_2_CHAR_TERM:
#ifdef _POSIX2_CHAR_TERM
return _POSIX2_CHAR_TERM;
#else
RETURN_NEG_1;
#endif
case _SC_2_UPE:
#ifdef _POSIX2_UPE
return _POSIX2_UPE;
#else
RETURN_NEG_1;
#endif
/* POSIX 1003.1c (POSIX Threads). */
case _SC_THREADS:
#ifdef __UCLIBC_HAS_THREADS__
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_THREAD_SAFE_FUNCTIONS:
#ifdef __UCLIBC_HAS_THREADS__
return 1;
#else
RETURN_NEG_1;
#endif
/* If you change these, also change libc/pwd_grp/pwd_grp.c to match */
case _SC_GETGR_R_SIZE_MAX:
return __UCLIBC_GRP_BUFFER_SIZE__;
case _SC_GETPW_R_SIZE_MAX:
return __UCLIBC_PWD_BUFFER_SIZE__;
/* getlogin() is a worthless interface. In uClibc we let the user specify
* whatever they want via the LOGNAME environment variable, or we return NULL
* if getenv() fails to find anything. So this is merely how large a env
* variable can be. Lets use 256 */
case _SC_LOGIN_NAME_MAX:
return 256;
/* If you change this, also change _SC_TTY_NAME_MAX in libc/unistd/sysconf.c */
#define TTYNAME_BUFLEN 32
case _SC_TTY_NAME_MAX:
return TTYNAME_BUFLEN;
case _SC_THREAD_DESTRUCTOR_ITERATIONS:
#ifdef _POSIX_THREAD_DESTRUCTOR_ITERATIONS
return _POSIX_THREAD_DESTRUCTOR_ITERATIONS;
#else
RETURN_NEG_1;
#endif
case _SC_THREAD_KEYS_MAX:
#ifdef PTHREAD_KEYS_MAX
return PTHREAD_KEYS_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_THREAD_STACK_MIN:
#ifdef PTHREAD_STACK_MIN
return PTHREAD_STACK_MIN;
#else
RETURN_NEG_1;
#endif
case _SC_THREAD_THREADS_MAX:
#ifdef PTHREAD_THREADS_MAX
return PTHREAD_THREADS_MAX;
#else
RETURN_NEG_1;
#endif
case _SC_THREAD_ATTR_STACKADDR:
#ifdef _POSIX_THREAD_ATTR_STACKADDR
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_THREAD_ATTR_STACKSIZE:
#ifdef _POSIX_THREAD_ATTR_STACKSIZE
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_THREAD_PRIORITY_SCHEDULING:
#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_THREAD_PRIO_INHERIT:
#ifdef _POSIX_THREAD_PRIO_INHERIT
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_THREAD_PRIO_PROTECT:
#ifdef _POSIX_THREAD_PRIO_PROTECT
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_THREAD_PROCESS_SHARED:
#ifdef _POSIX_THREAD_PROCESS_SHARED
return 1;
#else
RETURN_NEG_1;
#endif
case _SC_NPROCESSORS_CONF:
RETURN_FUNCTION(nprocessors_conf());
case _SC_NPROCESSORS_ONLN:
RETURN_FUNCTION(nprocessors_onln());
case _SC_PHYS_PAGES:
RETURN_FUNCTION(get_phys_pages());
case _SC_AVPHYS_PAGES:
RETURN_FUNCTION(get_avphys_pages());
case _SC_ATEXIT_MAX:
return __UCLIBC_MAX_ATEXIT;
case _SC_PASS_MAX:
/* We have no limit but since the return value might be used to
allocate a buffer we restrict the value. */
return BUFSIZ;
case _SC_XOPEN_VERSION:
return _XOPEN_VERSION;
case _SC_XOPEN_XCU_VERSION:
return _XOPEN_XCU_VERSION;
case _SC_XOPEN_UNIX:
return _XOPEN_UNIX;
case _SC_XOPEN_CRYPT:
#ifdef _XOPEN_CRYPT
return _XOPEN_CRYPT;
#else
RETURN_NEG_1;
#endif
case _SC_XOPEN_ENH_I18N:
#ifdef _XOPEN_ENH_I18N
return _XOPEN_ENH_I18N;
#else
RETURN_NEG_1;
#endif
case _SC_XOPEN_SHM:
#ifdef _XOPEN_SHM
return _XOPEN_SHM;
#else
RETURN_NEG_1;
#endif
case _SC_XOPEN_XPG2:
#ifdef _XOPEN_XPG2
return _XOPEN_XPG2;
#else
RETURN_NEG_1;
#endif
case _SC_XOPEN_XPG3:
#ifdef _XOPEN_XPG3
return _XOPEN_XPG3;
#else
RETURN_NEG_1;
#endif
case _SC_XOPEN_XPG4:
#ifdef _XOPEN_XPG4
return _XOPEN_XPG4;
#else
RETURN_NEG_1;
#endif
case _SC_CHAR_BIT:
return CHAR_BIT;
case _SC_CHAR_MAX:
return CHAR_MAX;
case _SC_CHAR_MIN:
return CHAR_MIN;
case _SC_INT_MAX:
return INT_MAX;
case _SC_INT_MIN:
return INT_MIN;
case _SC_LONG_BIT:
return sizeof (long int) * CHAR_BIT;
case _SC_WORD_BIT:
return sizeof (int) * CHAR_BIT;
case _SC_MB_LEN_MAX:
return MB_LEN_MAX;
case _SC_NZERO:
return NZERO;
case _SC_SSIZE_MAX:
return _POSIX_SSIZE_MAX;
case _SC_SCHAR_MAX:
return SCHAR_MAX;
case _SC_SCHAR_MIN:
return SCHAR_MIN;
case _SC_SHRT_MAX:
return SHRT_MAX;
case _SC_SHRT_MIN:
return SHRT_MIN;
case _SC_UCHAR_MAX:
return UCHAR_MAX;
case _SC_UINT_MAX:
return UINT_MAX;
case _SC_ULONG_MAX:
return ULONG_MAX;
case _SC_USHRT_MAX:
return USHRT_MAX;
case _SC_NL_ARGMAX:
#ifdef NL_ARGMAX
return NL_ARGMAX;
#else
RETURN_NEG_1;
#endif
case _SC_NL_LANGMAX:
#ifdef NL_LANGMAX
return NL_LANGMAX;
#else
RETURN_NEG_1;
#endif
case _SC_NL_MSGMAX:
#ifdef NL_MSGMAX
return NL_MSGMAX;
#else
RETURN_NEG_1;
#endif
case _SC_NL_NMAX:
#ifdef NL_NMAX
return NL_NMAX;
#else
RETURN_NEG_1;
#endif
case _SC_NL_SETMAX:
#ifdef NL_SETMAX
return NL_SETMAX;
#else
RETURN_NEG_1;
#endif
case _SC_NL_TEXTMAX:
#ifdef NL_TEXTMAX
return NL_TEXTMAX;
#else
RETURN_NEG_1;
#endif
case _SC_XBS5_ILP32_OFF32:
#ifdef _XBS5_ILP32_OFF32
return _XBS5_ILP32_OFF32;
#else
RETURN_NEG_1;
#endif
case _SC_XBS5_ILP32_OFFBIG:
#ifdef _XBS5_ILP32_OFFBIG
return _XBS5_ILP32_OFFBIG;
#else
RETURN_NEG_1;
#endif
case _SC_XBS5_LP64_OFF64:
#ifdef _XBS5_LP64_OFF64
return _XBS5_LP64_OFF64;
#else
RETURN_NEG_1;
#endif
case _SC_XBS5_LPBIG_OFFBIG:
#ifdef _XBS5_LPBIG_OFFBIG
return _XBS5_LPBIG_OFFBIG;
#else
RETURN_NEG_1;
#endif
case _SC_V7_ILP32_OFF32:
#ifdef _POSIX_V7_ILP32_OFF32
return _POSIX_V7_ILP32_OFF32;
#else
RETURN_NEG_1;
#endif
case _SC_V7_ILP32_OFFBIG:
#ifdef _POSIX_V7_ILP32_OFFBIG
return _POSIX_V7_ILP32_OFFBIG;
#else
RETURN_NEG_1;
#endif
case _SC_V7_LP64_OFF64:
#ifdef _POSIX_V7_LP64_OFF64
return _POSIX_V7_LP64_OFF64;
#else
RETURN_NEG_1;
#endif
case _SC_V7_LPBIG_OFFBIG:
#ifdef _POSIX_V7_LPBIG_OFFBIG
return _POSIX_V7_LPBIG_OFFBIG;
#else
RETURN_NEG_1;
#endif
case _SC_XOPEN_LEGACY:
return _XOPEN_LEGACY;
case _SC_XOPEN_REALTIME:
#ifdef _XOPEN_REALTIME
return _XOPEN_REALTIME;
#else
RETURN_NEG_1;
#endif
case _SC_XOPEN_REALTIME_THREADS:
#ifdef _XOPEN_REALTIME_THREADS
return _XOPEN_REALTIME_THREADS;
#else
RETURN_NEG_1;
#endif
case _SC_MONOTONIC_CLOCK:
#if defined __UCLIBC_HAS_REALTIME__ && defined __NR_clock_getres
if (clock_getres(CLOCK_MONOTONIC, NULL) >= 0)
return _POSIX_VERSION;
#endif
RETURN_NEG_1;
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
case _SC_THREAD_CPUTIME:
# if _POSIX_THREAD_CPUTIME > 0
return _POSIX_THREAD_CPUTIME;
# else
RETURN_NEG_1;
# endif
#endif
}
}
long sysconf(int name) {
switch (name) {
case _SC_ARG_MAX: return ARG_MAX;
case _SC_BC_BASE_MAX: return _POSIX2_BC_BASE_MAX; // Minimum requirement.
case _SC_BC_DIM_MAX: return _POSIX2_BC_DIM_MAX; // Minimum requirement.
case _SC_BC_SCALE_MAX: return _POSIX2_BC_SCALE_MAX; // Minimum requirement.
case _SC_BC_STRING_MAX: return _POSIX2_BC_STRING_MAX; // Minimum requirement.
case _SC_CHILD_MAX: return __sysconf_rlimit(RLIMIT_NPROC);
case _SC_CLK_TCK: return static_cast<long>(getauxval(AT_CLKTCK));
case _SC_COLL_WEIGHTS_MAX: return _POSIX2_COLL_WEIGHTS_MAX; // Minimum requirement.
case _SC_EXPR_NEST_MAX: return _POSIX2_EXPR_NEST_MAX; // Minimum requirement.
case _SC_LINE_MAX: return _POSIX2_LINE_MAX; // Minimum requirement.
case _SC_NGROUPS_MAX: return NGROUPS_MAX;
case _SC_OPEN_MAX: return __sysconf_rlimit(RLIMIT_NOFILE);
case _SC_PASS_MAX: return PASS_MAX;
case _SC_2_C_BIND: return _POSIX2_C_BIND;
case _SC_2_C_DEV: return _POSIX2_C_DEV;
case _SC_2_CHAR_TERM: return _POSIX2_CHAR_TERM;
case _SC_2_FORT_DEV: return -1;
case _SC_2_FORT_RUN: return -1;
case _SC_2_LOCALEDEF: return _POSIX2_LOCALEDEF;
case _SC_2_SW_DEV: return _POSIX2_SW_DEV;
case _SC_2_UPE: return _POSIX2_UPE;
case _SC_2_VERSION: return _POSIX2_VERSION;
case _SC_JOB_CONTROL: return _POSIX_JOB_CONTROL;
case _SC_SAVED_IDS: return _POSIX_SAVED_IDS;
case _SC_VERSION: return _POSIX_VERSION;
case _SC_RE_DUP_MAX: return _POSIX_RE_DUP_MAX; // Minimum requirement.
case _SC_STREAM_MAX: return FOPEN_MAX;
case _SC_TZNAME_MAX: return _POSIX_TZNAME_MAX; // Minimum requirement.
case _SC_XOPEN_CRYPT: return _XOPEN_CRYPT;
case _SC_XOPEN_ENH_I18N: return _XOPEN_ENH_I18N;
case _SC_XOPEN_SHM: return _XOPEN_SHM;
case _SC_XOPEN_VERSION: return _XOPEN_VERSION;
case _SC_XOPEN_REALTIME: return _XOPEN_REALTIME;
case _SC_XOPEN_REALTIME_THREADS: return _XOPEN_REALTIME_THREADS;
case _SC_XOPEN_LEGACY: return _XOPEN_LEGACY;
case _SC_ATEXIT_MAX: return LONG_MAX; // Unlimited.
case _SC_IOV_MAX: return UIO_MAXIOV;
// _SC_PAGESIZE and _SC_PAGE_SIZE are distinct, but return the same value.
case _SC_PAGESIZE:
case _SC_PAGE_SIZE:
return static_cast<long>(getauxval(AT_PAGESZ));
case _SC_XOPEN_UNIX: return _XOPEN_UNIX;
case _SC_AIO_LISTIO_MAX: return _POSIX_AIO_LISTIO_MAX; // Minimum requirement.
case _SC_AIO_MAX: return _POSIX_AIO_MAX; // Minimum requirement.
case _SC_AIO_PRIO_DELTA_MAX:return 0; // Minimum requirement.
case _SC_DELAYTIMER_MAX: return INT_MAX;
case _SC_MQ_OPEN_MAX: return _POSIX_MQ_OPEN_MAX; // Minimum requirement.
case _SC_MQ_PRIO_MAX: return _POSIX_MQ_PRIO_MAX; // Minimum requirement.
case _SC_RTSIG_MAX: return RTSIG_MAX;
case _SC_SEM_NSEMS_MAX: return _POSIX_SEM_NSEMS_MAX; // Minimum requirement.
case _SC_SEM_VALUE_MAX: return SEM_VALUE_MAX;
case _SC_SIGQUEUE_MAX: return _POSIX_SIGQUEUE_MAX; // Minimum requirement.
case _SC_TIMER_MAX: return _POSIX_TIMER_MAX; // Minimum requirement.
case _SC_ASYNCHRONOUS_IO: return _POSIX_ASYNCHRONOUS_IO;
case _SC_FSYNC: return _POSIX_FSYNC;
case _SC_MAPPED_FILES: return _POSIX_MAPPED_FILES;
case _SC_MEMLOCK: return _POSIX_MEMLOCK;
case _SC_MEMLOCK_RANGE: return _POSIX_MEMLOCK_RANGE;
case _SC_MEMORY_PROTECTION: return _POSIX_MEMORY_PROTECTION;
case _SC_MESSAGE_PASSING: return _POSIX_MESSAGE_PASSING;
case _SC_PRIORITIZED_IO: return _POSIX_PRIORITIZED_IO;
case _SC_PRIORITY_SCHEDULING: return _POSIX_PRIORITY_SCHEDULING;
case _SC_REALTIME_SIGNALS: return _POSIX_REALTIME_SIGNALS;
case _SC_SEMAPHORES: return _POSIX_SEMAPHORES;
case _SC_SHARED_MEMORY_OBJECTS: return _POSIX_SHARED_MEMORY_OBJECTS;
case _SC_SYNCHRONIZED_IO: return _POSIX_SYNCHRONIZED_IO;
case _SC_TIMERS: return _POSIX_TIMERS;
case _SC_GETGR_R_SIZE_MAX: return 1024;
case _SC_GETPW_R_SIZE_MAX: return 1024;
case _SC_LOGIN_NAME_MAX: return 256; // Seems default on linux.
case _SC_THREAD_DESTRUCTOR_ITERATIONS: return PTHREAD_DESTRUCTOR_ITERATIONS;
case _SC_THREAD_KEYS_MAX: return PTHREAD_KEYS_MAX;
case _SC_THREAD_STACK_MIN: return PTHREAD_STACK_MIN;
case _SC_THREAD_THREADS_MAX: return PTHREAD_THREADS_MAX;
case _SC_TTY_NAME_MAX: return 32; // Seems default on linux.
case _SC_THREADS: return _POSIX_THREADS;
case _SC_THREAD_ATTR_STACKADDR: return _POSIX_THREAD_ATTR_STACKADDR;
case _SC_THREAD_ATTR_STACKSIZE: return _POSIX_THREAD_ATTR_STACKSIZE;
case _SC_THREAD_PRIORITY_SCHEDULING: return _POSIX_THREAD_PRIORITY_SCHEDULING;
case _SC_THREAD_PRIO_INHERIT: return _POSIX_THREAD_PRIO_INHERIT;
case _SC_THREAD_PRIO_PROTECT: return _POSIX_THREAD_PRIO_PROTECT;
case _SC_THREAD_SAFE_FUNCTIONS: return _POSIX_THREAD_SAFE_FUNCTIONS;
case _SC_NPROCESSORS_CONF: return get_nprocs_conf();
case _SC_NPROCESSORS_ONLN: return get_nprocs();
case _SC_PHYS_PAGES: return get_phys_pages();
case _SC_AVPHYS_PAGES: return get_avphys_pages();
case _SC_MONOTONIC_CLOCK: return __sysconf_monotonic_clock();
case _SC_2_PBS: return -1; // Obsolescent in POSIX.1-2008.
case _SC_2_PBS_ACCOUNTING: return -1; // Obsolescent in POSIX.1-2008.
case _SC_2_PBS_CHECKPOINT: return -1; // Obsolescent in POSIX.1-2008.
case _SC_2_PBS_LOCATE: return -1; // Obsolescent in POSIX.1-2008.
case _SC_2_PBS_MESSAGE: return -1; // Obsolescent in POSIX.1-2008.
case _SC_2_PBS_TRACK: return -1; // Obsolescent in POSIX.1-2008.
case _SC_ADVISORY_INFO: return _POSIX_ADVISORY_INFO;
case _SC_BARRIERS: return _POSIX_BARRIERS;
case _SC_CLOCK_SELECTION: return _POSIX_CLOCK_SELECTION;
case _SC_CPUTIME:
return __sysconf_has_clock(CLOCK_PROCESS_CPUTIME_ID) ?_POSIX_VERSION : -1;
case _SC_HOST_NAME_MAX: return _POSIX_HOST_NAME_MAX; // Minimum requirement.
case _SC_IPV6: return _POSIX_IPV6;
case _SC_RAW_SOCKETS: return _POSIX_RAW_SOCKETS;
case _SC_READER_WRITER_LOCKS: return _POSIX_READER_WRITER_LOCKS;
case _SC_REGEXP: return _POSIX_REGEXP;
case _SC_SHELL: return _POSIX_SHELL;
case _SC_SPAWN: return _POSIX_SPAWN;
case _SC_SPIN_LOCKS: return _POSIX_SPIN_LOCKS;
case _SC_SPORADIC_SERVER: return _POSIX_SPORADIC_SERVER;
case _SC_SS_REPL_MAX: return -1;
case _SC_SYMLOOP_MAX: return _POSIX_SYMLOOP_MAX; // Minimum requirement.
case _SC_THREAD_CPUTIME:
return __sysconf_has_clock(CLOCK_THREAD_CPUTIME_ID) ? _POSIX_VERSION : -1;
case _SC_THREAD_PROCESS_SHARED: return _POSIX_THREAD_PROCESS_SHARED;
case _SC_THREAD_ROBUST_PRIO_INHERIT: return _POSIX_THREAD_ROBUST_PRIO_INHERIT;
case _SC_THREAD_ROBUST_PRIO_PROTECT: return _POSIX_THREAD_ROBUST_PRIO_PROTECT;
case _SC_THREAD_SPORADIC_SERVER: return _POSIX_THREAD_SPORADIC_SERVER;
case _SC_TIMEOUTS: return _POSIX_TIMEOUTS;
case _SC_TRACE: return -1; // Obsolescent in POSIX.1-2008.
case _SC_TRACE_EVENT_FILTER: return -1; // Obsolescent in POSIX.1-2008.
case _SC_TRACE_EVENT_NAME_MAX: return -1;
case _SC_TRACE_INHERIT: return -1; // Obsolescent in POSIX.1-2008.
case _SC_TRACE_LOG: return -1; // Obsolescent in POSIX.1-2008.
case _SC_TRACE_NAME_MAX: return -1;
case _SC_TRACE_SYS_MAX: return -1;
case _SC_TRACE_USER_EVENT_MAX: return -1;
case _SC_TYPED_MEMORY_OBJECTS: return _POSIX_TYPED_MEMORY_OBJECTS;
case _SC_V7_ILP32_OFF32: return _POSIX_V7_ILP32_OFF32;
case _SC_V7_ILP32_OFFBIG: return _POSIX_V7_ILP32_OFFBIG;
case _SC_V7_LP64_OFF64: return _POSIX_V7_LP64_OFF64;
case _SC_V7_LPBIG_OFFBIG: return _POSIX_V7_LPBIG_OFFBIG;
case _SC_XOPEN_STREAMS: return -1; // Obsolescent in POSIX.1-2008.
case _SC_XOPEN_UUCP: return -1;
// We do not have actual implementations for cache queries.
// It's valid to return 0 as the result is unknown.
case _SC_LEVEL1_ICACHE_SIZE: return 0;
case _SC_LEVEL1_ICACHE_ASSOC: return 0;
case _SC_LEVEL1_ICACHE_LINESIZE: return 0;
case _SC_LEVEL1_DCACHE_SIZE: return 0;
case _SC_LEVEL1_DCACHE_ASSOC: return 0;
case _SC_LEVEL1_DCACHE_LINESIZE: return 0;
case _SC_LEVEL2_CACHE_SIZE: return 0;
case _SC_LEVEL2_CACHE_ASSOC: return 0;
case _SC_LEVEL2_CACHE_LINESIZE: return 0;
case _SC_LEVEL3_CACHE_SIZE: return 0;
case _SC_LEVEL3_CACHE_ASSOC: return 0;
case _SC_LEVEL3_CACHE_LINESIZE: return 0;
case _SC_LEVEL4_CACHE_SIZE: return 0;
case _SC_LEVEL4_CACHE_ASSOC: return 0;
case _SC_LEVEL4_CACHE_LINESIZE: return 0;
default:
// Posix says EINVAL is the only error that shall be returned,
// but glibc uses ENOSYS.
errno = ENOSYS;
return -1;
}
}
long sysconf(int name) {
switch (name) {
case _SC_ARG_MAX: return _POSIX_ARG_MAX;
case _SC_CHILD_MAX: return CHILD_MAX;
case _SC_CLK_TCK: return SYSTEM_CLK_TCK;
case _SC_LINE_MAX: return _POSIX2_LINE_MAX;
case _SC_NGROUPS_MAX: return NGROUPS_MAX;
case _SC_OPEN_MAX: return OPEN_MAX;
case _SC_PASS_MAX: return PASS_MAX;
case _SC_2_C_BIND: return SYSTEM_2_C_BIND;
case _SC_2_C_DEV: return SYSTEM_2_C_DEV;
case _SC_2_C_VERSION: return SYSTEM_2_C_VER;
//case _SC_2_CHAR_TERM: return ;
case _SC_2_FORT_DEV: return SYSTEM_2_FORT_DEV;
case _SC_2_FORT_RUN: return SYSTEM_2_FORT_RUN;
case _SC_2_LOCALEDEF: return SYSTEM_2_LOCALEDEF;
case _SC_2_SW_DEV: return SYSTEM_2_SW_DEV;
case _SC_2_UPE: return SYSTEM_2_UPE;
case _SC_2_VERSION: return SYSTEM_2_VERSION;
case _SC_JOB_CONTROL: return _POSIX_JOB_CONTROL;
case _SC_SAVED_IDS: return _POSIX_SAVED_IDS;
case _SC_VERSION: return _POSIX_VERSION;
case _SC_RE_DUP_MAX: return _POSIX_RE_DUP_MAX;
case _SC_STREAM_MAX: return FOPEN_MAX;
case _SC_TZNAME_MAX: return _POSIX_TZNAME_MAX;
case _SC_XOPEN_CRYPT: return _XOPEN_CRYPT;
case _SC_XOPEN_ENH_I18N: return _XOPEN_ENH_I18N;
//case _SC_XOPEN_SHM: return _XOPEN_SHM;
case _SC_XOPEN_VERSION: return _XOPEN_VERSION;
case _SC_XOPEN_XCU_VERSION: return _XOPEN_XCU_VERSION;
case _SC_XOPEN_REALTIME: return _XOPEN_REALTIME;
case _SC_XOPEN_REALTIME_THREADS: return _XOPEN_REALTIME_THREADS;
case _SC_XOPEN_LEGACY: return _XOPEN_LEGACY;
case _SC_ATEXIT_MAX: return SYSTEM_ATEXIT_MAX;
case _SC_IOV_MAX: return SYSTEM_IOV_MAX;
case _SC_PAGESIZE:
case _SC_PAGE_SIZE:
return PAGE_SIZE;
case _SC_XOPEN_UNIX: return _XOPEN_UNIX;
// XXX: TODO: XBS5 nonsense
//case _SC_AIO_LISTIO_MAX: return AIO_LISTIO_MAX;
//case _SC_AIO_MAX: return AIO_MAX;
//case _SC_AIO_PRIO_DELTA_MAX: return AIO_PRIO_DELTA_MAX;
case _SC_DELAYTIMER_MAX: return SYSTEM_DELAYTIMER_MAX;
case _SC_MQ_OPEN_MAX: return SYSTEM_MQ_OPEN_MAX;
case _SC_MQ_PRIO_MAX: return SYSTEM_MQ_PRIO_MAX;
case _SC_RTSIG_MAX: return RTSIG_MAX;
case _SC_SEM_NSEMS_MAX: return SYSTEM_SEM_NSEMS_MAX;
case _SC_SEM_VALUE_MAX: return SEM_VALUE_MAX;
case _SC_SIGQUEUE_MAX: return SYSTEM_SIGQUEUE_MAX;
case _SC_TIMER_MAX: return SYSTEM_TIMER_MAX;
//case _SC_ASYNCHRONOUS_IO: return _POSIX_ASYNCHRONOUS_IO;
case _SC_FSYNC: return _POSIX_FSYNC;
case _SC_MAPPED_FILES: return _POSIX_MAPPED_FILES;
//case _SC_MEMLOCK: return _POSIX_MEMLOCK;
//case _SC_MEMLOCK_RANGE: return _POSIX_MEMLOCK_RANGE;
//case _SC_MEMORY_PROTECTION: return _POSIX_MEMORY_PROTECTION;
//case _SC_MESSAGE_PASSING: return _POSIX_MESSAGE_PASSING;
//case _SC_PRIORITIZED_IO: return _POSIX_PRIORITIZED_IO;
case _SC_PRIORITY_SCHEDULING: return _POSIX_PRIORITY_SCHEDULING;
case _SC_REALTIME_SIGNALS: return _POSIX_REALTIME_SIGNALS;
case _SC_SEMAPHORES: return _POSIX_SEMAPHORES;
//case _SC_SHARED_MEMORY_OBJECTS: return _POSIX_SHARED_MEMORY_OBJECTS;
case _SC_SYNCHRONIZED_IO: return _POSIX_SYNCHRONIZED_IO;
case _SC_TIMERS: return _POSIX_TIMERS;
case _SC_GETGR_R_SIZE_MAX: return 1024;
case _SC_GETPW_R_SIZE_MAX: return 1024;
case _SC_LOGIN_NAME_MAX: return SYSTEM_LOGIN_NAME_MAX;
case _SC_THREAD_DESTRUCTOR_ITERATIONS:
return _POSIX_THREAD_DESTRUCTOR_ITERATIONS;
case _SC_THREAD_KEYS_MAX:
return (BIONIC_TLS_SLOTS - TLS_SLOT_FIRST_USER_SLOT - BIONIC_TLS_RESERVED_SLOTS);
case _SC_THREAD_STACK_MIN: return PTHREAD_STACK_MIN;
case _SC_THREAD_THREADS_MAX: return SYSTEM_THREAD_THREADS_MAX;
case _SC_TTY_NAME_MAX: return SYSTEM_TTY_NAME_MAX;
case _SC_THREADS: return _POSIX_THREADS;
case _SC_THREAD_ATTR_STACKADDR: return -1; // Removed in POSIX 2008
case _SC_THREAD_ATTR_STACKSIZE: return -1; // Removed in POSIX 2008
//case _SC_THREAD_PRIORITY_SCHEDULING: return _POSIX_THREAD_PRIORITY_SCHEDULING;
case _SC_THREAD_PRIO_INHERIT: return _POSIX_THREAD_PRIO_INHERIT;
case _SC_THREAD_PRIO_PROTECT: return _POSIX_THREAD_PRIO_PROTECT;
//case _SC_THREAD_SAFE_FUNCTIONS: return _POSIX_THREAD_SAFE_FUNCTIONS
case _SC_MONOTONIC_CLOCK: return __sysconf_monotonic_clock();
case _SC_NPROCESSORS_CONF: return get_nprocs_conf();
case _SC_NPROCESSORS_ONLN: return get_nprocs();
case _SC_PHYS_PAGES: return get_phys_pages();
case _SC_AVPHYS_PAGES: return get_avphys_pages();
default:
// Posix says EINVAL is the only error that shall be returned,
// but glibc uses ENOSYS.
errno = ENOSYS;
return -1;
}
}
