887
888
889 #ifdef AMD64
890 void os::Solaris::init_thread_fpu_state(void) {
891 // Nothing to do
892 }
893 #else
894 // From solaris_i486.s
895 extern "C" void fixcw();
896
897 void os::Solaris::init_thread_fpu_state(void) {
898 // Set fpu to 53 bit precision. This happens too early to use a stub.
899 fixcw();
900 }
901
902 // These routines are the initial value of atomic_xchg_entry(),
903 // atomic_cmpxchg_entry(), atomic_inc_entry() and fence_entry()
904 // until initialization is complete.
905 // TODO - replace with .il implementation when compiler supports it.
906
907 typedef jint xchg_func_t (jint, volatile jint*);
908 typedef jint cmpxchg_func_t (jint, volatile jint*, jint);
909 typedef jlong cmpxchg_long_func_t(jlong, volatile jlong*, jlong);
910 typedef jint add_func_t (jint, volatile jint*);
911
912 jint os::atomic_xchg_bootstrap(jint exchange_value, volatile jint* dest) {
913 // try to use the stub:
914 xchg_func_t* func = CAST_TO_FN_PTR(xchg_func_t*, StubRoutines::atomic_xchg_entry());
915
916 if (func != NULL) {
917 os::atomic_xchg_func = func;
918 return (*func)(exchange_value, dest);
919 }
920 assert(Threads::number_of_threads() == 0, "for bootstrap only");
921
922 jint old_value = *dest;
923 *dest = exchange_value;
924 return old_value;
925 }
926
927 jint os::atomic_cmpxchg_bootstrap(jint exchange_value, volatile jint* dest, jint compare_value) {
928 // try to use the stub:
929 cmpxchg_func_t* func = CAST_TO_FN_PTR(cmpxchg_func_t*, StubRoutines::atomic_cmpxchg_entry());
930
931 if (func != NULL) {
932 os::atomic_cmpxchg_func = func;
933 return (*func)(exchange_value, dest, compare_value);
934 }
935 assert(Threads::number_of_threads() == 0, "for bootstrap only");
936
937 jint old_value = *dest;
938 if (old_value == compare_value)
939 *dest = exchange_value;
940 return old_value;
941 }
942
943 jlong os::atomic_cmpxchg_long_bootstrap(jlong exchange_value, volatile jlong* dest, jlong compare_value) {
944 // try to use the stub:
945 cmpxchg_long_func_t* func = CAST_TO_FN_PTR(cmpxchg_long_func_t*, StubRoutines::atomic_cmpxchg_long_entry());
946
947 if (func != NULL) {
948 os::atomic_cmpxchg_long_func = func;
949 return (*func)(exchange_value, dest, compare_value);
950 }
951 assert(Threads::number_of_threads() == 0, "for bootstrap only");
952
953 jlong old_value = *dest;
954 if (old_value == compare_value)
955 *dest = exchange_value;
956 return old_value;
957 }
958
959 jint os::atomic_add_bootstrap(jint add_value, volatile jint* dest) {
960 // try to use the stub:
961 add_func_t* func = CAST_TO_FN_PTR(add_func_t*, StubRoutines::atomic_add_entry());
962
963 if (func != NULL) {
964 os::atomic_add_func = func;
965 return (*func)(add_value, dest);
966 }
967 assert(Threads::number_of_threads() == 0, "for bootstrap only");
968
969 return (*dest) += add_value;
970 }
971
972 xchg_func_t* os::atomic_xchg_func = os::atomic_xchg_bootstrap;
973 cmpxchg_func_t* os::atomic_cmpxchg_func = os::atomic_cmpxchg_bootstrap;
974 cmpxchg_long_func_t* os::atomic_cmpxchg_long_func = os::atomic_cmpxchg_long_bootstrap;
975 add_func_t* os::atomic_add_func = os::atomic_add_bootstrap;
976
977 extern "C" void _solaris_raw_setup_fpu(address ptr);
978 void os::setup_fpu() {
979 address fpu_cntrl = StubRoutines::addr_fpu_cntrl_wrd_std();
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887
888
889 #ifdef AMD64
890 void os::Solaris::init_thread_fpu_state(void) {
891 // Nothing to do
892 }
893 #else
894 // From solaris_i486.s
895 extern "C" void fixcw();
896
897 void os::Solaris::init_thread_fpu_state(void) {
898 // Set fpu to 53 bit precision. This happens too early to use a stub.
899 fixcw();
900 }
901
902 // These routines are the initial value of atomic_xchg_entry(),
903 // atomic_cmpxchg_entry(), atomic_inc_entry() and fence_entry()
904 // until initialization is complete.
905 // TODO - replace with .il implementation when compiler supports it.
906
907 typedef int32_t xchg_func_t (int32_t, volatile int32_t*);
908 typedef int32_t cmpxchg_func_t (int32_t, volatile int32_t*, int32_t);
909 typedef int64_t cmpxchg_long_func_t(int64_t, volatile int64_t*, int64_t);
910 typedef int32_t add_func_t (int32_t, volatile int32_t*);
911
912 int32_t os::atomic_xchg_bootstrap(int32_t exchange_value, volatile int32_t* dest) {
913 // try to use the stub:
914 xchg_func_t* func = CAST_TO_FN_PTR(xchg_func_t*, StubRoutines::atomic_xchg_entry());
915
916 if (func != NULL) {
917 os::atomic_xchg_func = func;
918 return (*func)(exchange_value, dest);
919 }
920 assert(Threads::number_of_threads() == 0, "for bootstrap only");
921
922 int32_t old_value = *dest;
923 *dest = exchange_value;
924 return old_value;
925 }
926
927 int32_t os::atomic_cmpxchg_bootstrap(int32_t exchange_value, volatile int32_t* dest, int32_t compare_value) {
928 // try to use the stub:
929 cmpxchg_func_t* func = CAST_TO_FN_PTR(cmpxchg_func_t*, StubRoutines::atomic_cmpxchg_entry());
930
931 if (func != NULL) {
932 os::atomic_cmpxchg_func = func;
933 return (*func)(exchange_value, dest, compare_value);
934 }
935 assert(Threads::number_of_threads() == 0, "for bootstrap only");
936
937 int32_t old_value = *dest;
938 if (old_value == compare_value)
939 *dest = exchange_value;
940 return old_value;
941 }
942
943 int64_t os::atomic_cmpxchg_long_bootstrap(int64_t exchange_value, volatile int64_t* dest, int64_t compare_value) {
944 // try to use the stub:
945 cmpxchg_long_func_t* func = CAST_TO_FN_PTR(cmpxchg_long_func_t*, StubRoutines::atomic_cmpxchg_long_entry());
946
947 if (func != NULL) {
948 os::atomic_cmpxchg_long_func = func;
949 return (*func)(exchange_value, dest, compare_value);
950 }
951 assert(Threads::number_of_threads() == 0, "for bootstrap only");
952
953 int64_t old_value = *dest;
954 if (old_value == compare_value)
955 *dest = exchange_value;
956 return old_value;
957 }
958
959 int32_t os::atomic_add_bootstrap(int32_t add_value, volatile int32_t* dest) {
960 // try to use the stub:
961 add_func_t* func = CAST_TO_FN_PTR(add_func_t*, StubRoutines::atomic_add_entry());
962
963 if (func != NULL) {
964 os::atomic_add_func = func;
965 return (*func)(add_value, dest);
966 }
967 assert(Threads::number_of_threads() == 0, "for bootstrap only");
968
969 return (*dest) += add_value;
970 }
971
972 xchg_func_t* os::atomic_xchg_func = os::atomic_xchg_bootstrap;
973 cmpxchg_func_t* os::atomic_cmpxchg_func = os::atomic_cmpxchg_bootstrap;
974 cmpxchg_long_func_t* os::atomic_cmpxchg_long_func = os::atomic_cmpxchg_long_bootstrap;
975 add_func_t* os::atomic_add_func = os::atomic_add_bootstrap;
976
977 extern "C" void _solaris_raw_setup_fpu(address ptr);
978 void os::setup_fpu() {
979 address fpu_cntrl = StubRoutines::addr_fpu_cntrl_wrd_std();
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