static CORE_ADDR value_push PARAMS ((CORE_ADDR, value_ptr));
-static CORE_ADDR value_arg_push PARAMS ((CORE_ADDR, value_ptr));
-
static value_ptr search_struct_field PARAMS ((char *, value_ptr, int,
struct type *, int));
static CORE_ADDR allocate_space_in_inferior PARAMS ((int));
-static value_ptr f77_cast_into_complex PARAMS ((struct type *, value_ptr));
-
-static value_ptr f77_assign_from_literal_string PARAMS ((value_ptr,
- value_ptr));
-
-static value_ptr f77_assign_from_literal_complex PARAMS ((value_ptr,
- value_ptr));
+static value_ptr cast_into_complex PARAMS ((struct type *, value_ptr));
#define VALUE_SUBSTRING_START(VAL) VALUE_FRAME(VAL)
}
else
{
- msymbol = lookup_minimal_symbol ("malloc", (struct objfile *) NULL);
+ msymbol = lookup_minimal_symbol ("malloc", NULL, NULL);
if (msymbol != NULL)
{
type = lookup_pointer_type (builtin_type_char);
struct type *type;
register value_ptr arg2;
{
- register enum type_code code1;
+ register enum type_code code1 = TYPE_CODE (type);
register enum type_code code2;
register int scalar;
if (VALUE_TYPE (arg2) == type)
return arg2;
- COERCE_VARYING_ARRAY (arg2);
+ COERCE_REF(arg2);
+
+ /* A cast to an undetermined-length array_type, such as (TYPE [])OBJECT,
+ is treated like a cast to (TYPE [N])OBJECT,
+ where N is sizeof(OBJECT)/sizeof(TYPE). */
+ if (code1 == TYPE_CODE_ARRAY
+ && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0
+ && TYPE_ARRAY_UPPER_BOUND_TYPE (type) == BOUND_CANNOT_BE_DETERMINED)
+ {
+ struct type *element_type = TYPE_TARGET_TYPE (type);
+ struct type *range_type = TYPE_INDEX_TYPE (type);
+ int low_bound = TYPE_LOW_BOUND (range_type);
+ int val_length = TYPE_LENGTH (VALUE_TYPE (arg2));
+ int new_length = val_length / TYPE_LENGTH (element_type);
+ if (val_length % TYPE_LENGTH (element_type) != 0)
+ warning("array element type size does not divide object size in cast");
+ /* FIXME-type-allocation: need a way to free this type when we are
+ done with it. */
+ range_type = create_range_type ((struct type *) NULL,
+ TYPE_TARGET_TYPE (range_type),
+ low_bound, new_length + low_bound - 1);
+ VALUE_TYPE (arg2) = create_array_type ((struct type *) NULL,
+ element_type, range_type);
+ return arg2;
+ }
+
+ if (current_language->c_style_arrays
+ && (VALUE_REPEATED (arg2)
+ || TYPE_CODE (VALUE_TYPE (arg2)) == TYPE_CODE_ARRAY))
+ arg2 = value_coerce_array (arg2);
+
+ if (TYPE_CODE (VALUE_TYPE (arg2)) == TYPE_CODE_FUNC)
+ arg2 = value_coerce_function (arg2);
- /* Coerce arrays but not enums. Enums will work as-is
- and coercing them would cause an infinite recursion. */
- if (TYPE_CODE (VALUE_TYPE (arg2)) != TYPE_CODE_ENUM)
- COERCE_ARRAY (arg2);
+ COERCE_VARYING_ARRAY (arg2);
- code1 = TYPE_CODE (type);
code2 = TYPE_CODE (VALUE_TYPE (arg2));
if (code1 == TYPE_CODE_COMPLEX)
- return f77_cast_into_complex (type, arg2);
+ return cast_into_complex (type, arg2);
if (code1 == TYPE_CODE_BOOL)
code1 = TYPE_CODE_INT;
if (code2 == TYPE_CODE_BOOL)
- code2 = TYPE_CODE_INT;
+ code2 = TYPE_CODE_INT;
scalar = (code2 == TYPE_CODE_INT || code2 == TYPE_CODE_FLT
|| code2 == TYPE_CODE_ENUM || code2 == TYPE_CODE_RANGE);
char raw_buffer[MAX_REGISTER_RAW_SIZE];
int use_buffer = 0;
- if (current_language->la_language == language_fortran)
- {
- /* Deal with literal assignment in F77. All composite (i.e. string
- and complex number types) types are allocated in the superior
- NOT the inferior. Therefore assigment is somewhat tricky. */
-
- if (TYPE_CODE (VALUE_TYPE (fromval)) == TYPE_CODE_LITERAL_STRING)
- return f77_assign_from_literal_string (toval, fromval);
-
- if (TYPE_CODE (VALUE_TYPE (fromval)) == TYPE_CODE_LITERAL_COMPLEX)
- return f77_assign_from_literal_complex (toval, fromval);
- }
-
if (!toval->modifiable)
error ("Left operand of assignment is not a modifiable lvalue.");
error ("Only values in memory can be extended with '@'.");
if (count < 1)
error ("Invalid number %d of repetitions.", count);
+ if (VALUE_REPEATED (arg1))
+ error ("Cannot create artificial arrays of artificial arrays.");
val = allocate_repeat_value (VALUE_TYPE (arg1), count);
}
/* Perform the standard coercions that are specified
- for arguments to be passed to C functions. */
+ for arguments to be passed to C functions.
-value_ptr
-value_arg_coerce (arg)
+ If PARAM_TYPE is non-NULL, it is the expected parameter type. */
+
+static value_ptr
+value_arg_coerce (arg, param_type)
value_ptr arg;
+ struct type *param_type;
{
- register struct type *type;
-
- /* FIXME: We should coerce this according to the prototype (if we have
- one). Right now we do a little bit of this in typecmp(), but that
- doesn't always get called. For example, if passing a ref to a function
- without a prototype, we probably should de-reference it. Currently
- we don't. */
+ register struct type *type = param_type ? param_type : VALUE_TYPE (arg);
- if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ENUM)
- arg = value_cast (builtin_type_unsigned_int, arg);
+ switch (TYPE_CODE (type))
+ {
+ case TYPE_CODE_REF:
+ if (TYPE_CODE (VALUE_TYPE (arg)) != TYPE_CODE_REF)
+ {
+ arg = value_addr (arg);
+ VALUE_TYPE (arg) = param_type;
+ return arg;
+ }
+ break;
+ case TYPE_CODE_INT:
+ case TYPE_CODE_CHAR:
+ case TYPE_CODE_BOOL:
+ case TYPE_CODE_ENUM:
+ if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_int))
+ type = builtin_type_int;
+ break;
+ case TYPE_CODE_FLT:
+ if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_double))
+ type = builtin_type_double;
+ break;
+ case TYPE_CODE_FUNC:
+ type = lookup_pointer_type (type);
+ break;
+ }
#if 1 /* FIXME: This is only a temporary patch. -fnf */
if (current_language->c_style_arrays
&& (VALUE_REPEATED (arg)
|| TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ARRAY))
arg = value_coerce_array (arg);
- if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_FUNC)
- arg = value_coerce_function (arg);
#endif
- type = VALUE_TYPE (arg);
-
- if (TYPE_CODE (type) == TYPE_CODE_INT
- && TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_int))
- return value_cast (builtin_type_int, arg);
-
- if (TYPE_CODE (type) == TYPE_CODE_FLT
- && TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_double))
- return value_cast (builtin_type_double, arg);
-
- return arg;
-}
-
-/* Push the value ARG, first coercing it as an argument
- to a C function. */
-
-static CORE_ADDR
-value_arg_push (sp, arg)
- register CORE_ADDR sp;
- value_ptr arg;
-{
- return value_push (sp, value_arg_coerce (arg));
+ return value_cast (type, arg);
}
/* Determine a function's address and its return type from its value.
FUNCTION is a value, the function to be called.
Returns a value representing what the function returned.
May fail to return, if a breakpoint or signal is hit
- during the execution of the function. */
+ during the execution of the function.
+
+ ARGS is modified to contain coerced values. */
value_ptr
call_function_by_hand (function, nargs, args)
CORE_ADDR funaddr;
int using_gcc;
CORE_ADDR real_pc;
+ struct type *ftype = SYMBOL_TYPE (function);
if (!target_has_execution)
noprocess();
{
struct block *b = block_for_pc (funaddr);
/* If compiled without -g, assume GCC. */
- using_gcc = b == NULL || BLOCK_GCC_COMPILED (b);
+ using_gcc = b == NULL ? 0 : BLOCK_GCC_COMPILED (b);
}
/* Are we returning a value using a structure return or a normal
sp = old_sp; /* It really is used, for some ifdef's... */
#endif
-#ifdef STACK_ALIGN
- /* If stack grows down, we must leave a hole at the top. */
- {
- int len = 0;
-
- /* Reserve space for the return structure to be written on the
- stack, if necessary */
+ if (nargs < TYPE_NFIELDS (ftype))
+ error ("too few arguments in function call");
- if (struct_return)
- len += TYPE_LENGTH (value_type);
-
- for (i = nargs - 1; i >= 0; i--)
- len += TYPE_LENGTH (VALUE_TYPE (value_arg_coerce (args[i])));
-#ifdef CALL_DUMMY_STACK_ADJUST
- len += CALL_DUMMY_STACK_ADJUST;
-#endif
-#if 1 INNER_THAN 2
- sp -= STACK_ALIGN (len) - len;
-#else
- sp += STACK_ALIGN (len) - len;
-#endif
- }
-#endif /* STACK_ALIGN */
-
- /* Reserve space for the return structure to be written on the
- stack, if necessary */
-
- if (struct_return)
- {
-#if 1 INNER_THAN 2
- sp -= TYPE_LENGTH (value_type);
- struct_addr = sp;
-#else
- struct_addr = sp;
- sp += TYPE_LENGTH (value_type);
-#endif
- }
+ for (i = nargs - 1; i >= 0; i--)
+ {
+ struct type *param_type;
+ if (TYPE_NFIELDS (ftype) > i)
+ param_type = TYPE_FIELD_TYPE (ftype, i);
+ else
+ param_type = 0;
+ args[i] = value_arg_coerce (args[i], param_type);
+ }
#if defined (REG_STRUCT_HAS_ADDR)
{
/* This is a machine like the sparc, where we may need to pass a pointer
to the structure, not the structure itself. */
for (i = nargs - 1; i >= 0; i--)
- if (TYPE_CODE (VALUE_TYPE (args[i])) == TYPE_CODE_STRUCT
+ if ((TYPE_CODE (VALUE_TYPE (args[i])) == TYPE_CODE_STRUCT
+ || TYPE_CODE (VALUE_TYPE (args[i])) == TYPE_CODE_UNION
+ || TYPE_CODE (VALUE_TYPE (args[i])) == TYPE_CODE_ARRAY
+ || TYPE_CODE (VALUE_TYPE (args[i])) == TYPE_CODE_STRING)
&& REG_STRUCT_HAS_ADDR (using_gcc, VALUE_TYPE (args[i])))
{
CORE_ADDR addr;
+ int len = TYPE_LENGTH (VALUE_TYPE (args[i]));
+#ifdef STACK_ALIGN
+ int aligned_len = STACK_ALIGN (len);
+#else
+ int aligned_len = len;
+#endif
#if !(1 INNER_THAN 2)
/* The stack grows up, so the address of the thing we push
is the stack pointer before we push it. */
addr = sp;
+#else
+ sp -= aligned_len;
#endif
/* Push the structure. */
- sp = value_push (sp, args[i]);
+ write_memory (sp, VALUE_CONTENTS (args[i]), len);
#if 1 INNER_THAN 2
/* The stack grows down, so the address of the thing we push
is the stack pointer after we push it. */
addr = sp;
+#else
+ sp += aligned_len;
#endif
/* The value we're going to pass is the address of the thing
we just pushed. */
}
#endif /* REG_STRUCT_HAS_ADDR. */
+ /* Reserve space for the return structure to be written on the
+ stack, if necessary */
+
+ if (struct_return)
+ {
+ int len = TYPE_LENGTH (value_type);
+#ifdef STACK_ALIGN
+ len = STACK_ALIGN (len);
+#endif
+#if 1 INNER_THAN 2
+ sp -= len;
+ struct_addr = sp;
+#else
+ struct_addr = sp;
+ sp += len;
+#endif
+ }
+
+#ifdef STACK_ALIGN
+ /* If stack grows down, we must leave a hole at the top. */
+ {
+ int len = 0;
+
+ for (i = nargs - 1; i >= 0; i--)
+ len += TYPE_LENGTH (VALUE_TYPE (args[i]));
+#ifdef CALL_DUMMY_STACK_ADJUST
+ len += CALL_DUMMY_STACK_ADJUST;
+#endif
+#if 1 INNER_THAN 2
+ sp -= STACK_ALIGN (len) - len;
+#else
+ sp += STACK_ALIGN (len) - len;
+#endif
+ }
+#endif /* STACK_ALIGN */
+
#ifdef PUSH_ARGUMENTS
PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr);
#else /* !PUSH_ARGUMENTS */
for (i = nargs - 1; i >= 0; i--)
- sp = value_arg_push (sp, args[i]);
+ sp = value_push (sp, args[i]);
#endif /* !PUSH_ARGUMENTS */
#ifdef CALL_DUMMY_STACK_ADJUST
int len;
{
value_ptr val;
+ int lowbound = current_language->string_lower_bound;
struct type *rangetype = create_range_type ((struct type *) NULL,
- builtin_type_int, 0, len - 1);
+ builtin_type_int,
+ lowbound, len + lowbound - 1);
struct type *stringtype
= create_string_type ((struct type *) NULL, rangetype);
CORE_ADDR addr;
(lookup_reference_type
(lookup_member_type (TYPE_FN_FIELD_TYPE (f, j),
domain)),
- (LONGEST) METHOD_PTR_FROM_VOFFSET
- (TYPE_FN_FIELD_VOFFSET (f, j)));
+ (LONGEST) METHOD_PTR_FROM_VOFFSET (TYPE_FN_FIELD_VOFFSET (f, j)));
}
else
{
return this;
}
-/* Create a value for a literal string. We copy data into a local
- (NOT inferior's memory) buffer, and then set up an array value.
-
- The array bounds are set from LOWBOUND and HIGHBOUND, and the array is
- populated from the values passed in ELEMVEC.
-
- The element type of the array is inherited from the type of the
- first element, and all elements must have the same size (though we
- don't currently enforce any restriction on their types). */
-
-value_ptr
-f77_value_literal_string (lowbound, highbound, elemvec)
- int lowbound;
- int highbound;
- value_ptr *elemvec;
-{
- int nelem;
- int idx;
- int typelength;
- register value_ptr val;
- struct type *rangetype;
- struct type *arraytype;
- char *addr;
-
- /* Validate that the bounds are reasonable and that each of the elements
- have the same size. */
-
- nelem = highbound - lowbound + 1;
- if (nelem <= 0)
- error ("bad array bounds (%d, %d)", lowbound, highbound);
- typelength = TYPE_LENGTH (VALUE_TYPE (elemvec[0]));
- for (idx = 0; idx < nelem; idx++)
- {
- if (TYPE_LENGTH (VALUE_TYPE (elemvec[idx])) != typelength)
- error ("array elements must all be the same size");
- }
-
- /* Make sure we are dealing with characters */
-
- if (typelength != 1)
- error ("Found a non character type in a literal string ");
-
- /* Allocate space to store the array */
-
- addr = xmalloc (nelem);
- for (idx = 0; idx < nelem; idx++)
- {
- memcpy (addr + (idx), VALUE_CONTENTS (elemvec[idx]), 1);
- }
-
- rangetype = create_range_type ((struct type *) NULL, builtin_type_int,
- lowbound, highbound);
-
- arraytype = f77_create_literal_string_type ((struct type *) NULL,
- rangetype);
-
- val = allocate_value (arraytype);
-
- /* Make sure that this the rest of the world knows that this is
- a standard literal string, not one that is a substring of
- some base */
-
- VALUE_SUBSTRING_MEMADDR (val) = (CORE_ADDR)0;
-
- VALUE_LAZY (val) = 0;
- VALUE_LITERAL_DATA (val) = addr;
-
- /* Since this is a standard literal string with no real lval,
- make sure that value_lval indicates this fact */
-
- VALUE_LVAL (val) = not_lval;
- return val;
-}
-
/* Create a slice (sub-string, sub-array) of ARRAY, that is LENGTH elements
long, starting at LOWBOUND. The result has the same lower bound as
the original ARRAY. */
value_ptr array;
int lowbound, length;
{
+ COERCE_VARYING_ARRAY (array);
if (TYPE_CODE (VALUE_TYPE (array)) == TYPE_CODE_BITSTRING)
error ("not implemented - bitstring slice");
if (TYPE_CODE (VALUE_TYPE (array)) != TYPE_CODE_ARRAY
if (lowbound < lowerbound || length < 0
|| lowbound + length - 1 > upperbound)
error ("slice out of range");
+ /* FIXME-type-allocation: need a way to free this type when we are
+ done with it. */
slice_range_type = create_range_type ((struct type*) NULL,
TYPE_TARGET_TYPE (range_type),
lowerbound,
return value_slice (value_primitive_field (varray, 0, 1, vtype), 0, length);
}
-/* Create a value for a substring. We copy data into a local
- (NOT inferior's memory) buffer, and then set up an array value.
-
- The array bounds for the string are (1:(to-from +1))
- The elements of the string are all characters. */
-
-value_ptr
-f77_value_substring (str, from, to)
- value_ptr str;
- int from;
- int to;
-{
- int nelem;
- register value_ptr val;
- struct type *rangetype;
- struct type *arraytype;
- struct internalvar *var;
- char *addr;
-
- /* Validate that the bounds are reasonable. */
-
- nelem = to - from + 1;
- if (nelem <= 0)
- error ("bad substring bounds (%d, %d)", from, to);
-
- rangetype = create_range_type ((struct type *) NULL, builtin_type_int,
- 1, nelem);
-
- arraytype = f77_create_literal_string_type ((struct type *) NULL,
- rangetype);
-
- val = allocate_value (arraytype);
-
- /* Allocate space to store the substring array */
-
- addr = xmalloc (nelem);
-
- /* Copy over the data */
-
- /* In case we ever try to use this substring on the LHS of an assignment
- remember where the SOURCE substring begins, for lval_memory
- types this ptr is to a location in legal inferior memory,
- for lval_internalvars it is a ptr. to superior memory. This
- helps us out later when we do assigments like:
-
- set var ARR(2:3) = 'ab'
-
- */
-
-
- if (VALUE_LVAL (str) == lval_memory)
- {
- if (VALUE_SUBSTRING_MEMADDR (str) == (CORE_ADDR)0)
- {
- /* This is a regular lval_memory string located in the
- inferior */
-
- VALUE_SUBSTRING_MEMADDR (val) = VALUE_ADDRESS (str) + (from - 1);
- target_read_memory (VALUE_SUBSTRING_MEMADDR (val), addr, nelem);
- }
- else
- {
-
-#if 0
- /* str is a substring allocated in the superior. Just
- do a memcpy */
-
- VALUE_SUBSTRING_MYADDR (val) = VALUE_LITERAL_DATA(str)+(from - 1);
- memcpy(addr, VALUE_SUBSTRING_MYADDR (val), nelem);
-#else
- error ("Cannot get substrings of substrings");
-#endif
- }
- }
- else
- if (VALUE_LVAL(str) == lval_internalvar)
- {
- /* Internal variables of type TYPE_CODE_LITERAL_STRING
- have their data located in the superior
- process not the inferior */
-
- var = VALUE_INTERNALVAR (str);
-
- if (VALUE_SUBSTRING_MEMADDR (str) == (CORE_ADDR)0)
- VALUE_SUBSTRING_MYADDR (val) =
- ((char *) VALUE_LITERAL_DATA (var->value)) + (from - 1);
- else
-#if 0
- VALUE_SUBSTRING_MYADDR (val) = VALUE_LITERAL_DATA(str)+(from -1);
-#else
- error ("Cannot get substrings of substrings");
-#endif
- memcpy (addr, VALUE_SUBSTRING_MYADDR (val), nelem);
- }
- else
- error ("Substrings can not be applied to this data item");
-
- VALUE_LAZY (val) = 0;
- VALUE_LITERAL_DATA (val) = addr;
-
- /* This literal string's *data* is located in the superior BUT
- we do need to know where it came from (i.e. was the source
- string an internalvar or a regular lval_memory variable), so
- we set the lval field to indicate this. This will be useful
- when we use this value on the LHS of an expr. */
-
- VALUE_LVAL (val) = VALUE_LVAL (str);
- return val;
-}
-
/* Create a value for a FORTRAN complex number. Currently most of
the time values are coerced to COMPLEX*16 (i.e. a complex number
composed of 2 doubles. This really should be a smarter routine
doubles. FIXME: fmb */
value_ptr
-f77_value_literal_complex (arg1, arg2, size)
+value_literal_complex (arg1, arg2, type)
value_ptr arg1;
value_ptr arg2;
- int size;
+ struct type *type;
{
- struct type *complex_type;
register value_ptr val;
- char *addr;
-
- if (size != 8 && size != 16 && size != 32)
- error ("Cannot create number of type 'complex*%d'", size);
-
- /* If either value comprising a complex number is a non-floating
- type, cast to double. */
-
- if (TYPE_CODE (VALUE_TYPE (arg1)) != TYPE_CODE_FLT)
- arg1 = value_cast (builtin_type_f_real_s8, arg1);
-
- if (TYPE_CODE (VALUE_TYPE (arg1)) != TYPE_CODE_FLT)
- arg2 = value_cast (builtin_type_f_real_s8, arg2);
-
- complex_type = f77_create_literal_complex_type (VALUE_TYPE (arg1),
- VALUE_TYPE (arg2)
-#if 0
-/* FIXME: does f77_create_literal_complex_type need to do something with
- this? */
- ,
- size
-#endif
- );
-
- val = allocate_value (complex_type);
+ struct type *real_type = TYPE_TARGET_TYPE (type);
- /* Now create a pointer to enough memory to hold the the two args */
-
- addr = xmalloc (TYPE_LENGTH (complex_type));
-
- /* Copy over the two components */
-
- memcpy (addr, VALUE_CONTENTS_RAW (arg1), TYPE_LENGTH (VALUE_TYPE (arg1)));
-
- memcpy (addr + TYPE_LENGTH (VALUE_TYPE (arg1)), VALUE_CONTENTS_RAW (arg2),
- TYPE_LENGTH (VALUE_TYPE (arg2)));
-
- VALUE_ADDRESS (val) = 0; /* Not located in the inferior */
- VALUE_LAZY (val) = 0;
- VALUE_LITERAL_DATA (val) = addr;
-
- /* Since this is a literal value, make sure that value_lval indicates
- this fact */
+ val = allocate_value (type);
+ arg1 = value_cast (real_type, arg1);
+ arg2 = value_cast (real_type, arg2);
- VALUE_LVAL (val) = not_lval;
+ memcpy (VALUE_CONTENTS_RAW (val),
+ VALUE_CONTENTS (arg1), TYPE_LENGTH (real_type));
+ memcpy (VALUE_CONTENTS_RAW (val) + TYPE_LENGTH (real_type),
+ VALUE_CONTENTS (arg2), TYPE_LENGTH (real_type));
return val;
}
-/* Cast a value into the appropriate complex data type. Only works
- if both values are complex. */
+/* Cast a value into the appropriate complex data type. */
static value_ptr
-f77_cast_into_complex (type, val)
+cast_into_complex (type, val)
struct type *type;
register value_ptr val;
{
- register enum type_code valcode;
- float tmp_f;
- double tmp_d;
- register value_ptr piece1, piece2;
-
- int lenfrom, lento;
-
- valcode = TYPE_CODE (VALUE_TYPE (val));
-
- /* This casting will only work if the right hand side is
- either a regular complex type or a literal complex type.
- I.e: this casting is only for size adjustment of
- complex numbers not anything else. */
-
- if ((valcode != TYPE_CODE_COMPLEX) &&
- (valcode != TYPE_CODE_LITERAL_COMPLEX))
- error ("Cannot cast from a non complex type!");
-
- lenfrom = TYPE_LENGTH (VALUE_TYPE (val));
- lento = TYPE_LENGTH (type);
-
- if (lento == lenfrom)
- error ("Value to be cast is already of type %s", TYPE_NAME (type));
-
- if (lento == 32 || lenfrom == 32)
- error ("Casting into/out of complex*32 unsupported");
-
- switch (lento)
- {
- case 16:
- {
- /* Since we have excluded lenfrom == 32 and
- lenfrom == 16, it MUST be 8 */
-
- if (valcode == TYPE_CODE_LITERAL_COMPLEX)
- {
- /* Located in superior's memory. Routine should
- deal with both real literal complex numbers
- as well as internal vars */
-
- /* Grab the two 4 byte reals that make up the complex*8 */
-
- tmp_f = *((float *) VALUE_LITERAL_DATA (val));
-
- piece1 = value_from_double(builtin_type_f_real_s8,tmp_f);
-
- tmp_f = *((float *) (((char *) VALUE_LITERAL_DATA (val))
- + sizeof(float)));
-
- piece2 = value_from_double (builtin_type_f_real_s8, tmp_f);
- }
- else
- {
- /* Located in inferior memory, so first we need
- to read the 2 floats that make up the 8 byte
- complex we are are casting from */
-
- read_memory ((CORE_ADDR) VALUE_CONTENTS (val),
- (char *) &tmp_f, sizeof(float));
-
- piece1 = value_from_double (builtin_type_f_real_s8, tmp_f);
-
- read_memory ((CORE_ADDR) VALUE_CONTENTS (val) + sizeof(float),
- (char *) &tmp_f, sizeof(float));
-
- piece2 = value_from_double (builtin_type_f_real_s8, tmp_f);
- }
- return f77_value_literal_complex (piece1, piece2, 16);
- }
-
- case 8:
- {
- /* Since we have excluded lenfrom == 32 and
- lenfrom == 8, it MUST be 16. NOTE: in this
- case data may be since we are dropping precison */
-
- if (valcode == TYPE_CODE_LITERAL_COMPLEX)
- {
- /* Located in superior's memory. Routine should
- deal with both real literal complex numbers
- as well as internal vars */
-
- /* Grab the two 8 byte reals that make up the complex*16 */
-
- tmp_d = *((double *) VALUE_LITERAL_DATA (val));
-
- piece1 = value_from_double (builtin_type_f_real, tmp_d);
-
- tmp_d = *((double *) (((char *) VALUE_LITERAL_DATA (val))
- + sizeof(double)));
-
- piece2 = value_from_double (builtin_type_f_real, tmp_d);
- }
- else
- {
- /* Located in inferior memory, so first we need to read the
- 2 floats that make up the 8 byte complex we are are
- casting from. */
-
- read_memory ((CORE_ADDR) VALUE_CONTENTS (val),
- (char *) &tmp_d, sizeof(double));
-
- piece1 = value_from_double (builtin_type_f_real, tmp_d);
-
- read_memory ((CORE_ADDR) VALUE_CONTENTS (val) + sizeof(double),
- (char *) &tmp_f, sizeof(double));
-
- piece2 = value_from_double (builtin_type_f_real, tmp_d);
- }
- return f77_value_literal_complex (piece1, piece2, 8);
- }
-
- default:
- error ("Invalid F77 complex number cast");
- }
-}
-
-/* The following function is called in order to assign
- a literal F77 array to either an internal GDB variable
- or to a real array variable in the inferior.
- This function is necessary because in F77, literal
- arrays are allocated in the superior's memory space
- NOT the inferior's. This function provides a way to
- get the F77 stuff to work without messing with the
- way C deals with this issue. NOTE: we are assuming
- that all F77 array literals are STRING array literals. F77
- users have no good way of expressing non-string
- literal strings.
-
- This routine now also handles assignment TO literal strings
- in the peculiar case of substring assignments of the
- form:
-
- STR(2:3) = 'foo'
-
- */
-
-static value_ptr
-f77_assign_from_literal_string (toval, fromval)
- register value_ptr toval, fromval;
-{
- register struct type *type = VALUE_TYPE (toval);
- register value_ptr val;
- struct internalvar *var;
- int lenfrom, lento;
- CORE_ADDR tmp_addr;
- char *c;
-
- lenfrom = TYPE_LENGTH (VALUE_TYPE (fromval));
- lento = TYPE_LENGTH (VALUE_TYPE (toval));
-
- if ((VALUE_LVAL (toval) == lval_internalvar
- || VALUE_LVAL (toval) == lval_memory)
- && VALUE_SUBSTRING_START (toval) != 0)
- {
- /* We are assigning TO a substring type. This is of the form:
-
- set A(2:5) = 'foov'
-
- The result of this will be a modified toval not a brand new
- value. This is high F77 weirdness. */
-
- /* Simply overwrite the relevant memory, wherever it
- exists. Use standard F77 character assignment rules
- (if len(toval) > len(fromval) pad with blanks,
- if len(toval) < len(fromval) truncate else just copy. */
-
- if (VALUE_LVAL (toval) == lval_internalvar)
- {
- /* Memory in superior. */
- var = VALUE_INTERNALVAR (toval);
- memcpy ((char *) VALUE_SUBSTRING_START (toval),
- (char *) VALUE_LITERAL_DATA (fromval),
- (lento > lenfrom) ? lenfrom : lento);
-
- /* Check to see if we have to pad. */
-
- if (lento > lenfrom)
- {
- memset((char *) VALUE_SUBSTRING_START(toval) + lenfrom,
- ' ', lento - lenfrom);
- }
- }
- else
- {
- /* Memory in inferior. */
- write_memory ((CORE_ADDR) VALUE_SUBSTRING_START (toval),
- (char *) VALUE_LITERAL_DATA (fromval),
- (lento > lenfrom) ? lenfrom : lento);
-
- /* Check to see if we have to pad. */
-
- if (lento > lenfrom)
- {
- c = alloca (lento-lenfrom);
- memset (c, ' ', lento - lenfrom);
-
- tmp_addr = VALUE_SUBSTRING_START (toval) + lenfrom;
- write_memory (tmp_addr, c, lento - lenfrom);
- }
- }
- return fromval;
- }
- else
- {
- if (VALUE_LVAL (toval) == lval_internalvar)
- type = VALUE_TYPE (fromval);
-
- val = allocate_value (type);
-
- switch (VALUE_LVAL (toval))
- {
- case lval_internalvar:
-
- /* Internal variables are funny. Their value information
- is stored in the location.internalvar sub structure. */
-
- var = VALUE_INTERNALVAR (toval);
-
- /* The item in toval is a regular internal variable
- and this assignment is of the form:
-
- set var $foo = 'hello' */
-
- /* First free up any old stuff in this internalvar. */
-
- free (VALUE_LITERAL_DATA (var->value));
- VALUE_LITERAL_DATA (var->value) = 0;
- VALUE_LAZY (var->value) = 0; /* Disable lazy fetches since this
- is not located in inferior. */
-
- /* Copy over the relevant value data from 'fromval' */
-
- set_internalvar (VALUE_INTERNALVAR (toval), fromval);
-
- /* Now replicate the VALUE_LITERAL_DATA field so that
- we may later safely de-allocate fromval. */
-
- VALUE_LITERAL_DATA (var->value) =
- malloc (TYPE_LENGTH (VALUE_TYPE (fromval)));
-
- memcpy((char *) VALUE_LITERAL_DATA (var->value),
- (char *) VALUE_LITERAL_DATA (fromval),
- lenfrom);
-
- /* Copy over all relevant value data from 'toval'. into
- the structure to returned */
-
- memcpy (val, toval, sizeof(struct value));
-
- /* Lastly copy the pointer to the area where the
- internalvar data is stored to the VALUE_CONTENTS field.
- This will be a helpful shortcut for printout
- routines later */
-
- VALUE_LITERAL_DATA (val) = VALUE_LITERAL_DATA (var->value);
- break;
-
- case lval_memory:
-
- /* We are copying memory from the local (superior)
- literal string to a legitimate address in the
- inferior. VALUE_ADDRESS is the address in
- the inferior. VALUE_OFFSET is not used because
- structs do not exist in F77. */
-
- /* Copy over all relevant value data from 'toval'. */
-
- memcpy (val, toval, sizeof(struct value));
-
- write_memory ((CORE_ADDR) VALUE_ADDRESS (val),
- (char *) VALUE_LITERAL_DATA (fromval),
- (lento > lenfrom) ? lenfrom : lento);
-
- /* Check to see if we have to pad */
-
- if (lento > lenfrom)
- {
- c = alloca (lento - lenfrom);
- memset (c, ' ', lento - lenfrom);
- tmp_addr = VALUE_ADDRESS (val) + lenfrom;
- write_memory (tmp_addr, c, lento - lenfrom);
- }
- break;
-
- default:
- error ("Unknown lval type in f77_assign_from_literal_string");
- }
-
- /* Now free up the transient literal string's storage. */
-
- free (VALUE_LITERAL_DATA (fromval));
-
- VALUE_TYPE (val) = type;
-
- return val;
- }
-}
-
-
-/* The following function is called in order to assign a literal F77
- complex to either an internal GDB variable or to a real complex
- variable in the inferior. This function is necessary because in F77,
- composite literals are allocated in the superior's memory space
- NOT the inferior's. This function provides a way to get the F77 stuff
- to work without messing with the way C deals with this issue. */
-
-static value_ptr
-f77_assign_from_literal_complex (toval, fromval)
- register value_ptr toval, fromval;
-{
- register struct type *type = VALUE_TYPE (toval);
- register value_ptr val;
- struct internalvar *var;
- float tmp_float=0;
- double tmp_double = 0;
-
- if (VALUE_LVAL (toval) == lval_internalvar)
- type = VALUE_TYPE (fromval);
-
- /* Allocate a value node for the result. */
-
- val = allocate_value (type);
-
- if (VALUE_LVAL (toval) == lval_internalvar)
+ struct type *real_type = TYPE_TARGET_TYPE (type);
+ if (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_COMPLEX)
{
- /* Internal variables are funny. Their value information
- is stored in the location.internalvar sub structure. */
-
- var = VALUE_INTERNALVAR (toval);
-
- /* First free up any old stuff in this internalvar. */
-
- free (VALUE_LITERAL_DATA (var->value));
- VALUE_LITERAL_DATA (var->value) = 0;
- VALUE_LAZY (var->value) = 0; /* Disable lazy fetches since
- this is not located in inferior. */
-
- /* Copy over the relevant value data from 'fromval'. */
-
- set_internalvar (VALUE_INTERNALVAR (toval), fromval);
+ struct type *val_real_type = TYPE_TARGET_TYPE (VALUE_TYPE (val));
+ value_ptr re_val = allocate_value (val_real_type);
+ value_ptr im_val = allocate_value (val_real_type);
- /* Now replicate the VALUE_LITERAL_DATA field so that
- we may later safely de-allocate fromval. */
+ memcpy (VALUE_CONTENTS_RAW (re_val),
+ VALUE_CONTENTS (val), TYPE_LENGTH (val_real_type));
+ memcpy (VALUE_CONTENTS_RAW (im_val),
+ VALUE_CONTENTS (val) + TYPE_LENGTH (val_real_type),
+ TYPE_LENGTH (val_real_type));
- VALUE_LITERAL_DATA (var->value) =
- malloc (TYPE_LENGTH (VALUE_TYPE (fromval)));
-
- memcpy ((char *) VALUE_LITERAL_DATA (var->value),
- (char *) VALUE_LITERAL_DATA (fromval),
- TYPE_LENGTH (VALUE_TYPE (fromval)));
-
- /* Copy over all relevant value data from 'toval' into the
- structure to be returned. */
-
- memcpy (val, toval, sizeof(struct value));
+ return value_literal_complex (re_val, im_val, type);
}
+ else if (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_FLT
+ || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_INT)
+ return value_literal_complex (val, value_zero (real_type, not_lval), type);
else
- {
- /* We are copying memory from the local (superior) process to a
- legitimate address in the inferior. VALUE_ADDRESS is the
- address in the inferior. */
-
- /* Copy over all relevant value data from 'toval'. */
-
- memcpy (val, toval, sizeof(struct value));
-
- if (TYPE_LENGTH (VALUE_TYPE (fromval))
- > TYPE_LENGTH (VALUE_TYPE (toval)))
- {
- /* Since all literals are actually complex*16 types, deal with
- the case when one tries to assign a literal to a complex*8. */
-
- if ((TYPE_LENGTH(VALUE_TYPE(fromval)) == 16) &&
- (TYPE_LENGTH(VALUE_TYPE(toval)) == 8))
- {
- tmp_double = *((double *) VALUE_LITERAL_DATA (fromval));
-
- tmp_float = (float) tmp_double;
-
- write_memory (VALUE_ADDRESS(val),
- (char *) &tmp_float, sizeof(float));
-
- tmp_double = *((double *)
- (((char *) VALUE_LITERAL_DATA (fromval))
- + sizeof(double)));
-
- tmp_float = (float) tmp_double;
-
- write_memory(VALUE_ADDRESS(val) + sizeof(float),
- (char *) &tmp_float, sizeof(float));
- }
- else
- error ("Cannot assign literal complex to variable!");
- }
- else
- {
- write_memory (VALUE_ADDRESS (val),
- (char *) VALUE_LITERAL_DATA (fromval),
- TYPE_LENGTH (VALUE_TYPE (fromval)));
- }
- }
-
- /* Now free up the transient literal string's storage */
-
- free (VALUE_LITERAL_DATA (fromval));
-
- VALUE_TYPE (val) = type;
-
- return val;
+ error ("cannot cast non-number to complex");
}
projects / deliverable / binutils-gdb.git / blobdiff