support configurable page size on mips, powerpc and microblaze

[musl] / src / conf / sysconf.c

diff --git a/src/conf/sysconf.c b/src/conf/sysconf.c
index 5b6c14e..97fd4fa 100644 (file)
--- a/src/conf/sysconf.c
+++ b/src/conf/sysconf.c
@@ -3,9 +3,11 @@
 #include <errno.h>
 #include <sys/resource.h>
 #include "syscall.h"
+#include "libc.h"
 
 #define VER (-2)
 #define OFLOW (-3)
+#define CPUCNT (-4)
 #define RLIM(x) (-32768|(RLIMIT_ ## x))
 
 long sysconf(int name)
@@ -26,22 +28,22 @@ long sysconf(int name)
                [_SC_ASYNCHRONOUS_IO] = VER,
                [_SC_PRIORITIZED_IO] = -1,
                [_SC_SYNCHRONIZED_IO] = -1,
-               [_SC_FSYNC] = -1,
+               [_SC_FSYNC] = VER,
                [_SC_MAPPED_FILES] = VER,
                [_SC_MEMLOCK] = VER,
                [_SC_MEMLOCK_RANGE] = VER,
                [_SC_MEMORY_PROTECTION] = VER,
-               [_SC_MESSAGE_PASSING] = -1,
+               [_SC_MESSAGE_PASSING] = VER,
                [_SC_SEMAPHORES] = VER,
-               [_SC_SHARED_MEMORY_OBJECTS] = -1,
+               [_SC_SHARED_MEMORY_OBJECTS] = VER,
                [_SC_AIO_LISTIO_MAX] = -1,
                [_SC_AIO_MAX] = -1,
                [_SC_AIO_PRIO_DELTA_MAX] = 0, /* ?? */
                [_SC_DELAYTIMER_MAX] = _POSIX_DELAYTIMER_MAX,
                [_SC_MQ_OPEN_MAX] = -1,
-               [_SC_MQ_PRIO_MAX] = MQ_PRIO_MAX,
+               [_SC_MQ_PRIO_MAX] = OFLOW,
                [_SC_VERSION] = VER,
-               [_SC_PAGE_SIZE] = PAGE_SIZE,
+               [_SC_PAGE_SIZE] = OFLOW,
                [_SC_RTSIG_MAX] = 63, /* ?? */
                [_SC_SEM_NSEMS_MAX] = SEM_NSEMS_MAX,
                [_SC_SEM_VALUE_MAX] = OFLOW,
@@ -84,25 +86,25 @@ long sysconf(int name)
                [_SC_GETPW_R_SIZE_MAX] = -1,
                [_SC_LOGIN_NAME_MAX] = 256,
                [_SC_TTY_NAME_MAX] = TTY_NAME_MAX,
-               [_SC_THREAD_DESTRUCTOR_ITERATIONS] = _POSIX_THREAD_DESTRUCTOR_ITERATIONS,
+               [_SC_THREAD_DESTRUCTOR_ITERATIONS] = PTHREAD_DESTRUCTOR_ITERATIONS,
                [_SC_THREAD_KEYS_MAX] = PTHREAD_KEYS_MAX,
                [_SC_THREAD_STACK_MIN] = PTHREAD_STACK_MIN,
                [_SC_THREAD_THREADS_MAX] = -1,
-               [_SC_THREAD_ATTR_STACKADDR] = -1,
+               [_SC_THREAD_ATTR_STACKADDR] = VER,
                [_SC_THREAD_ATTR_STACKSIZE] = VER,
-               [_SC_THREAD_PRIORITY_SCHEDULING] = -1,
+               [_SC_THREAD_PRIORITY_SCHEDULING] = VER,
                [_SC_THREAD_PRIO_INHERIT] = -1,
                [_SC_THREAD_PRIO_PROTECT] = -1,
                [_SC_THREAD_PROCESS_SHARED] = VER,
-               [_SC_NPROCESSORS_CONF] = -1,
-               [_SC_NPROCESSORS_ONLN] = -1,
+               [_SC_NPROCESSORS_CONF] = CPUCNT,
+               [_SC_NPROCESSORS_ONLN] = CPUCNT,
                [_SC_PHYS_PAGES] = -1,
                [_SC_AVPHYS_PAGES] = -1,
                [_SC_ATEXIT_MAX] = -1,
                [_SC_PASS_MAX] = -1,
                [_SC_XOPEN_VERSION] = _XOPEN_VERSION,
                [_SC_XOPEN_XCU_VERSION] = _XOPEN_VERSION,
-               [_SC_XOPEN_UNIX] = -1,
+               [_SC_XOPEN_UNIX] = 1,
                [_SC_XOPEN_CRYPT] = -1,
                [_SC_XOPEN_ENH_I18N] = 1,
                [_SC_XOPEN_SHM] = 1,
@@ -139,18 +141,18 @@ long sysconf(int name)
                [_SC_XBS5_ILP32_OFF32] = -1,
                [_SC_XBS5_ILP32_OFFBIG] = 2*(sizeof(long)==4)-1,
                [_SC_XBS5_LP64_OFF64] = 2*(sizeof(long)==8)-1,
-               [_SC_XBS5_LPBIG_OFFBIG] = 2*(sizeof(long)>=8)-1,
+               [_SC_XBS5_LPBIG_OFFBIG] = -1,
                [_SC_XOPEN_LEGACY] = -1,
                [_SC_XOPEN_REALTIME] = -1,
                [_SC_XOPEN_REALTIME_THREADS] = -1,
-               [_SC_ADVISORY_INFO] = -1,
+               [_SC_ADVISORY_INFO] = VER,
                [_SC_BARRIERS] = VER,
                [_SC_BASE] = -1,
                [_SC_C_LANG_SUPPORT] = -1,
                [_SC_C_LANG_SUPPORT_R] = -1,
                [_SC_CLOCK_SELECTION] = VER,
                [_SC_CPUTIME] = VER,
-               [_SC_THREAD_CPUTIME] = -1,
+               [_SC_THREAD_CPUTIME] = VER,
                [_SC_DEVICE_IO] = -1,
                [_SC_DEVICE_SPECIFIC] = -1,
                [_SC_DEVICE_SPECIFIC_R] = -1,
@@ -170,7 +172,7 @@ long sysconf(int name)
                [_SC_REGEX_VERSION] = -1,
                [_SC_SHELL] = 1,
                [_SC_SIGNALS] = -1,
-               [_SC_SPAWN] = -1,
+               [_SC_SPAWN] = VER,
                [_SC_SPORADIC_SERVER] = -1,
                [_SC_THREAD_SPORADIC_SERVER] = -1,
                [_SC_SYSTEM_DATABASE] = -1,
@@ -190,7 +192,7 @@ long sysconf(int name)
                [_SC_V6_ILP32_OFF32] = -1,
                [_SC_V6_ILP32_OFFBIG] = 2*(sizeof(long)==4)-1,
                [_SC_V6_LP64_OFF64] = 2*(sizeof(long)==8)-1,
-               [_SC_V6_LPBIG_OFFBIG] = 2*(sizeof(long)>=8)-1,
+               [_SC_V6_LPBIG_OFFBIG] = -1,
                [_SC_HOST_NAME_MAX] = HOST_NAME_MAX,
                [_SC_TRACE] = -1,
                [_SC_TRACE_EVENT_FILTER] = -1,
@@ -202,7 +204,7 @@ long sysconf(int name)
                [_SC_V7_ILP32_OFF32] = -1,
                [_SC_V7_ILP32_OFFBIG] = 2*(sizeof(long)==4)-1,
                [_SC_V7_LP64_OFF64] = 2*(sizeof(long)==8)-1,
-               [_SC_V7_LPBIG_OFFBIG] = 2*(sizeof(long)>=8)-1,
+               [_SC_V7_LPBIG_OFFBIG] = -1,
                [_SC_SS_REPL_MAX] = -1,
                [_SC_TRACE_EVENT_NAME_MAX] = -1,
                [_SC_TRACE_NAME_MAX] = -1,
@@ -220,7 +222,17 @@ long sysconf(int name)
        } else if (values[name] == OFLOW) {
                if (name == _SC_ARG_MAX) return ARG_MAX;
                if (name == _SC_SEM_VALUE_MAX) return SEM_VALUE_MAX;
-       } else if (values[name] < 0) {
+               if (name == _SC_MQ_PRIO_MAX) return MQ_PRIO_MAX;
+               /* name == _SC_PAGE_SIZE */
+               return PAGE_SIZE;
+       } else if (values[name] == CPUCNT) {
+               unsigned char set[128] = {1};
+               int i, cnt;
+               __syscall(SYS_sched_getaffinity, 0, sizeof set, set);
+               for (i=cnt=0; i<sizeof set; i++)
+                       for (; set[i]; set[i]&=set[i]-1, cnt++);
+               return cnt;
+       } else if (values[name] < OFLOW) {
                long lim[2];
                __syscall(SYS_getrlimit, values[name]&16383, lim);
                return lim[0] < 0 ? LONG_MAX : lim[0];