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comparison src/share/vm/prims/unsafe.cpp @ 23822:626f594dffa6

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8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux. Reviewed-by: stuefe, coleenp, roland
author csahu
date Tue, 01 Mar 2016 12:50:37 +0530
parents f46871c6c063
children d109bda16490
comparison
equal deleted inserted replaced
23821:2f8db587e1fc 23822:626f594dffa6
853 } 853 }
854 } 854 }
855 855
856 UNSAFE_ENTRY(jint, Unsafe_ArrayBaseOffset(JNIEnv *env, jobject unsafe, jclass acls)) 856 UNSAFE_ENTRY(jint, Unsafe_ArrayBaseOffset(JNIEnv *env, jobject unsafe, jclass acls))
857 UnsafeWrapper("Unsafe_ArrayBaseOffset"); 857 UnsafeWrapper("Unsafe_ArrayBaseOffset");
858 int base, scale; 858 int base = 0, scale = 0;
859 getBaseAndScale(base, scale, acls, CHECK_0); 859 getBaseAndScale(base, scale, acls, CHECK_0);
860 return field_offset_from_byte_offset(base); 860 return field_offset_from_byte_offset(base);
861 UNSAFE_END 861 UNSAFE_END
862 862
863 863
864 UNSAFE_ENTRY(jint, Unsafe_ArrayIndexScale(JNIEnv *env, jobject unsafe, jclass acls)) 864 UNSAFE_ENTRY(jint, Unsafe_ArrayIndexScale(JNIEnv *env, jobject unsafe, jclass acls))
865 UnsafeWrapper("Unsafe_ArrayIndexScale"); 865 UnsafeWrapper("Unsafe_ArrayIndexScale");
866 int base, scale; 866 int base = 0, scale = 0;
867 getBaseAndScale(base, scale, acls, CHECK_0); 867 getBaseAndScale(base, scale, acls, CHECK_0);
868 // This VM packs both fields and array elements down to the byte. 868 // This VM packs both fields and array elements down to the byte.
869 // But watch out: If this changes, so that array references for 869 // But watch out: If this changes, so that array references for
870 // a given primitive type (say, T_BOOLEAN) use different memory units 870 // a given primitive type (say, T_BOOLEAN) use different memory units
871 // than fields, this method MUST return zero for such arrays. 871 // than fields, this method MUST return zero for such arrays.