diff options
| -rw-r--r-- | ChangeLog | 13 | ||||
| -rw-r--r-- | ext/fiddle/closure.c | 7 | ||||
| -rw-r--r-- | ext/fiddle/conversions.c | 11 | ||||
| -rw-r--r-- | ext/fiddle/conversions.h | 2 |
4 files changed, 28 insertions, 5 deletions
@@ -1,3 +1,16 @@ +Tue Aug 9 14:25:47 2011 Naohisa Goto <[email protected]> + + * ext/fiddle/conversions.c (generic_to_value): ffi_arg and ffi_sarg + should be used to handle shorter return value. fix [Bug #3861] + [ruby-core:32504] + + * ext/fiddle/closure.c (callback): ditto + + * ext/fiddle/conversions.h (fiddle_generic): ditto + + * ext/fiddle/conversions.c (value_to_generic): char, short and int + are strictly distinguished on big-endian CPU, e.g. sparc64. + Tue Aug 9 11:21:08 2011 Narihiro Nakamura <[email protected]> * gc.c (gc_lazy_sweep): if sweep target slots are not found, we diff --git a/ext/fiddle/closure.c b/ext/fiddle/closure.c index 5f55d6d4f8..48520997bc 100644 --- a/ext/fiddle/closure.c +++ b/ext/fiddle/closure.c @@ -110,14 +110,13 @@ callback(ffi_cif *cif, void *resp, void **args, void *ctx) *(long *)resp = NUM2LONG(ret); break; case TYPE_CHAR: - *(char *)resp = NUM2INT(ret); + case TYPE_SHORT: + case TYPE_INT: + *(ffi_sarg *)resp = NUM2INT(ret); break; case TYPE_VOIDP: *(void **)resp = NUM2PTR(ret); break; - case TYPE_INT: - *(int *)resp = NUM2INT(ret); - break; case TYPE_DOUBLE: *(double *)resp = NUM2DBL(ret); break; diff --git a/ext/fiddle/conversions.c b/ext/fiddle/conversions.c index bb5361a6c8..8ffd7c5e08 100644 --- a/ext/fiddle/conversions.c +++ b/ext/fiddle/conversions.c @@ -56,7 +56,11 @@ value_to_generic(int type, VALUE src, fiddle_generic * dst) dst->pointer = NUM2PTR(rb_Integer(src)); break; case TYPE_CHAR: + dst->schar = NUM2INT(src); + break; case TYPE_SHORT: + dst->sshort = NUM2INT(src); + break; case TYPE_INT: dst->sint = NUM2INT(src); break; @@ -103,9 +107,14 @@ generic_to_value(VALUE rettype, fiddle_generic retval) return rb_funcall(cPointer, rb_intern("[]"), 1, PTR2NUM((void *)retval.pointer)); case TYPE_CHAR: + if (signed_p) return INT2NUM((char)retval.fffi_sarg); + return INT2NUM((unsigned char)retval.fffi_arg); case TYPE_SHORT: + if (signed_p) return INT2NUM((short)retval.fffi_sarg); + return INT2NUM((unsigned short)retval.fffi_arg); case TYPE_INT: - return INT2NUM(retval.sint); + if (signed_p) return INT2NUM((int)retval.fffi_sarg); + return UINT2NUM((unsigned int)retval.fffi_arg); case TYPE_LONG: if (signed_p) return LONG2NUM(retval.slong); return ULONG2NUM(retval.ulong); diff --git a/ext/fiddle/conversions.h b/ext/fiddle/conversions.h index eb16125908..5a605b3945 100644 --- a/ext/fiddle/conversions.h +++ b/ext/fiddle/conversions.h @@ -5,6 +5,8 @@ typedef union { + ffi_arg fffi_arg; /* rvalue smaller than unsigned long */ + ffi_sarg fffi_sarg; /* rvalue smaller than signed long */ unsigned char uchar; /* ffi_type_uchar */ signed char schar; /* ffi_type_schar */ unsigned short ushort; /* ffi_type_sshort */ |