Accept and ignore the R_BPF_64_NODLYD32 relocation.
[binutils-gdb.git] / gdb / std-operator.def
blobc76abfe7f5e2240c54f54fbb1fcc0536fab6135a
1 /* Standard language operator definitions for GDB, the GNU debugger.
3 Copyright (C) 1986-2023 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* Used when it's necessary to pass an opcode which will be ignored,
21 or to catch uninitialized values. */
22 OP (OP_NULL)
24 /* BINOP_... operate on two values computed by following subexpressions,
25 replacing them by one result value. They take no immediate arguments. */
27 OP (BINOP_ADD) /* + */
28 OP (BINOP_SUB) /* - */
29 OP (BINOP_MUL) /* * */
30 OP (BINOP_DIV) /* / */
31 OP (BINOP_REM) /* % */
32 OP (BINOP_MOD) /* mod (Knuth 1.2.4) */
33 OP (BINOP_LSH) /* << */
34 OP (BINOP_RSH) /* >> */
35 OP (BINOP_LOGICAL_AND) /* && */
36 OP (BINOP_LOGICAL_OR) /* || */
37 OP (BINOP_BITWISE_AND) /* & */
38 OP (BINOP_BITWISE_IOR) /* | */
39 OP (BINOP_BITWISE_XOR) /* ^ */
40 OP (BINOP_EQUAL) /* == */
41 OP (BINOP_NOTEQUAL) /* != */
42 OP (BINOP_LESS) /* < */
43 OP (BINOP_GTR) /* > */
44 OP (BINOP_LEQ) /* <= */
45 OP (BINOP_GEQ) /* >= */
46 OP (BINOP_REPEAT) /* @ */
47 OP (BINOP_ASSIGN) /* = */
48 OP (BINOP_COMMA) /* , */
49 OP (BINOP_SUBSCRIPT) /* x[y] */
50 OP (BINOP_EXP) /* Exponentiation */
52 /* C++. */
54 OP (BINOP_MIN) /* <? */
55 OP (BINOP_MAX) /* >? */
57 /* STRUCTOP_MEMBER is used for pointer-to-member constructs.
58 X . * Y translates into X STRUCTOP_MEMBER Y. */
59 OP (STRUCTOP_MEMBER)
61 /* STRUCTOP_MPTR is used for pointer-to-member constructs
62 when X is a pointer instead of an aggregate. */
63 OP (STRUCTOP_MPTR)
65 /* TYPE_INSTANCE is used when the user specifies a specific
66 type instantiation for overloaded methods/functions.
68 The format is:
69 TYPE_INSTANCE num_types type0 ... typeN num_types TYPE_INSTANCE. */
70 OP (TYPE_INSTANCE)
72 /* end of C++. */
74 /* For Modula-2 integer division DIV. */
75 OP (BINOP_INTDIV)
77 /* +=, -=, *=, and so on. The following exp_element is another opcode,
78 a BINOP_, saying how to modify. Then comes another BINOP_ASSIGN_MODIFY,
79 making three exp_elements in total. */
80 OP (BINOP_ASSIGN_MODIFY)
82 /* Modula-2 standard (binary) procedures. */
83 OP (BINOP_VAL)
85 /* Concatenate two operands, such as character strings or bitstrings.
86 If the first operand is a integer expression, then it means concatenate
87 the second operand with itself that many times. */
88 OP (BINOP_CONCAT)
90 /* Operates on three values computed by following subexpressions. */
91 OP (TERNOP_COND) /* ?: */
93 /* A sub-string/sub-array. Ada syntax: OP1(OP2..OP3). Return
94 elements OP2 through OP3 of OP1. */
95 OP (TERNOP_SLICE)
97 /* Multidimensional subscript operator, such as Modula-2 x[a,b,...].
98 The dimensionality is encoded in the operator, like the number of
99 function arguments in OP_FUNCALL, I.E. <OP><dimension><OP>.
100 The value of the first following subexpression is subscripted
101 by each of the next following subexpressions, one per dimension. */
102 OP (MULTI_SUBSCRIPT)
104 /* The OP_... series take immediate following arguments.
105 After the arguments come another OP_... (the same one)
106 so that the grouping can be recognized from the end. */
108 /* OP_LONG is followed by a type pointer in the next exp_element
109 and the long constant value in the following exp_element.
110 Then comes another OP_LONG.
111 Thus, the operation occupies four exp_elements. */
112 OP (OP_LONG)
114 /* OP_FLOAT is similar but takes a floating-point constant encoded in
115 the target format for the given type instead of a long. */
116 OP (OP_FLOAT)
118 /* OP_VAR_VALUE takes one struct block * in the following element,
119 and one struct symbol * in the following exp_element, followed
120 by another OP_VAR_VALUE, making four exp_elements. If the
121 block is non-NULL, evaluate the symbol relative to the
122 innermost frame executing in that block; if the block is NULL
123 use the selected frame. */
124 OP (OP_VAR_VALUE)
126 /* OP_VAR_ENTRY_VALUE takes one struct symbol * in the following element,
127 followed by another OP_VAR_ENTRY_VALUE, making three exp_elements.
128 somename@entry may mean parameter value as present at the entry of the
129 current function. Implemented via DW_OP_entry_value. */
130 OP (OP_VAR_ENTRY_VALUE)
132 /* OP_VAR_MSYM_VALUE takes one struct objfile * in the following
133 element, and one struct minimal_symbol * in the following
134 exp_element, followed by another OP_VAR_MSYM_VALUE, making four
135 exp_elements. */
136 OP (OP_VAR_MSYM_VALUE)
138 /* OP_LAST is followed by an integer in the next exp_element.
139 The integer is zero for the last value printed,
140 or it is the absolute number of a history element.
141 With another OP_LAST at the end, this makes three exp_elements. */
142 OP (OP_LAST)
144 /* OP_REGISTER is followed by a string in the next exp_element.
145 This is the name of a register to fetch. */
146 OP (OP_REGISTER)
148 /* OP_INTERNALVAR is followed by an internalvar ptr in the next
149 exp_element. With another OP_INTERNALVAR at the end, this
150 makes three exp_elements. */
151 OP (OP_INTERNALVAR)
153 /* OP_FUNCALL is followed by an integer in the next exp_element.
154 The integer is the number of args to the function call.
155 That many plus one values from following subexpressions
156 are used, the first one being the function.
157 The integer is followed by a repeat of OP_FUNCALL,
158 making three exp_elements. */
159 OP (OP_FUNCALL)
161 /* OP_OBJC_MSGCALL is followed by a string in the next exp_element
162 and then an integer. The string is the selector string. The
163 integer is the number of arguments to the message call. That
164 many plus one values are used, the first one being the object
165 pointer. This is an Objective C message. */
166 OP (OP_OBJC_MSGCALL)
168 /* OP_COMPLEX takes a type in the following element, followed by another
169 OP_COMPLEX, making three exp_elements. It is followed by two double
170 args, and converts them into a complex number of the given type. */
171 OP (OP_COMPLEX)
173 /* OP_STRING represents a string constant.
174 Its format is the same as that of a STRUCTOP, but the string
175 data is just made into a string constant when the operation
176 is executed. */
177 OP (OP_STRING)
179 /* OP_ARRAY creates an array constant out of the following subexpressions.
180 It is followed by two exp_elements, the first containing an integer
181 that is the lower bound of the array and the second containing another
182 integer that is the upper bound of the array. The second integer is
183 followed by a repeat of OP_ARRAY, making four exp_elements total.
184 The bounds are used to compute the number of following subexpressions
185 to consume, as well as setting the bounds in the created array constant.
186 The type of the elements is taken from the type of the first subexp,
187 and they must all match. */
188 OP (OP_ARRAY)
190 /* UNOP_EXTRACT takes a value and a type, like a cast, but, instead of
191 casting the value to the given type, a new value (of the given
192 type) is extracted from the contents of the old value, starting
193 from the least significant byte.
195 It is invalid for the given type to be larger than the type of the
196 given value. */
197 OP (UNOP_EXTRACT)
199 /* UNOP_CAST is followed by a type pointer in the next exp_element.
200 With another UNOP_CAST at the end, this makes three exp_elements.
201 It casts the value of the following subexpression. */
202 OP (UNOP_CAST)
204 /* Like UNOP_CAST, but the type is a subexpression. */
205 OP (UNOP_CAST_TYPE)
207 /* The C++ dynamic_cast operator. */
208 OP (UNOP_DYNAMIC_CAST)
210 /* The C++ reinterpret_cast operator. */
211 OP (UNOP_REINTERPRET_CAST)
213 /* UNOP_MEMVAL is followed by a type pointer in the next exp_element
214 With another UNOP_MEMVAL at the end, this makes three exp_elements.
215 It casts the contents of the word addressed by the value of the
216 following subexpression. */
217 OP (UNOP_MEMVAL)
219 /* Like UNOP_MEMVAL, but the type is supplied as a subexpression. */
220 OP (UNOP_MEMVAL_TYPE)
222 /* UNOP_... operate on one value from a following subexpression
223 and replace it with a result. They take no immediate arguments. */
225 OP (UNOP_NEG) /* Unary - */
226 OP (UNOP_LOGICAL_NOT) /* Unary ! */
227 OP (UNOP_COMPLEMENT) /* Unary ~ */
228 OP (UNOP_IND) /* Unary * */
229 OP (UNOP_ADDR) /* Unary & */
230 OP (UNOP_PREINCREMENT) /* ++ before an expression */
231 OP (UNOP_POSTINCREMENT) /* ++ after an expression */
232 OP (UNOP_PREDECREMENT) /* -- before an expression */
233 OP (UNOP_POSTDECREMENT) /* -- after an expression */
234 OP (UNOP_SIZEOF) /* Unary sizeof (followed by expression) */
235 OP (UNOP_ALIGNOF) /* Unary alignof (followed by expression) */
237 OP (UNOP_PLUS) /* Unary plus */
239 OP (UNOP_ABS)
240 OP (UNOP_HIGH)
242 OP (OP_BOOL) /* Modula-2 builtin BOOLEAN type */
244 /* STRUCTOP_... operate on a value from a following subexpression
245 by extracting a structure component specified by a string
246 that appears in the following exp_elements (as many as needed).
247 STRUCTOP_STRUCT is used for "." and STRUCTOP_PTR for "->".
248 They differ only in the error message given in case the value is
249 not suitable or the structure component specified is not found.
251 The length of the string follows the opcode, followed by
252 BYTES_TO_EXP_ELEM(length) elements containing the data of the
253 string, followed by the length again and the opcode again. */
255 OP (STRUCTOP_STRUCT)
256 OP (STRUCTOP_PTR)
258 /* Anonymous field access, e.g. "foo.3". Used in Rust. */
259 OP (STRUCTOP_ANONYMOUS)
261 /* C++: OP_THIS is just a placeholder for the class instance variable.
262 It just comes in a tight (OP_THIS, OP_THIS) pair. */
263 OP (OP_THIS)
265 /* Objective C: "@selector" pseudo-operator. */
266 OP (OP_OBJC_SELECTOR)
268 /* OP_SCOPE surrounds a type name and a field name. The type
269 name is encoded as one element, but the field name stays as
270 a string, which, of course, is variable length. */
271 OP (OP_SCOPE)
273 /* OP_FUNC_STATIC_VAR refers to a function local static variable. The
274 function is taken from the following subexpression. The length of
275 the variable name as a string follows the opcode, followed by
276 BYTES_TO_EXP_ELEM(length) elements containing the data of the
277 string, followed by the length again and the opcode again.
279 Note this is used by C++, but not C. The C parser handles local
280 static variables in the parser directly. Also, this is only used
281 in C++ if the function/method name is not quoted, like e.g.:
283 p S:method()::var
284 p S:method() const::var
286 If the function/method is quoted like instead:
288 p 'S:method() const'::var
290 then the C-specific handling directly in the parser takes over (see
291 block/variable productions).
293 Also, if the whole function+var is quoted like this:
295 p 'S:method() const::var'
297 then the whole quoted expression is interpreted as a single symbol
298 name and we don't use OP_FUNC_STATIC_VAR either. In that case, the
299 C++-specific symbol lookup routines take care of the
300 function-local-static search. */
301 OP (OP_FUNC_STATIC_VAR)
303 /* OP_TYPE is for parsing types, and used with the "ptype" command
304 so we can look up types that are qualified by scope, either with
305 the GDB "::" operator, or the Modula-2 '.' operator. */
306 OP (OP_TYPE)
308 /* An Objective C Foundation Class NSString constant. */
309 OP (OP_OBJC_NSSTRING)
311 /* An array range operator (in Fortran 90, for "exp:exp", "exp:",
312 ":exp" and ":"). */
313 OP (OP_RANGE)
315 /* OP_ADL_FUNC specifies that the function is to be looked up in an
316 Argument Dependent manner (Koenig lookup). */
317 OP (OP_ADL_FUNC)
319 /* The typeof operator. This has one expression argument, which is
320 evaluated solely for its type. */
321 OP (OP_TYPEOF)
323 /* The decltype operator. This has one expression argument, which is
324 evaluated solely for its type. This is similar to typeof, but has
325 slight different semantics. */
326 OP (OP_DECLTYPE)
328 /* The typeid operator. This has one expression argument. */
329 OP (OP_TYPEID)
331 /* This is used for the Rust [expr; N] form of array construction. It
332 takes two expression arguments. */
333 OP (OP_RUST_ARRAY)
335 /* ================ Ada operators ================ */
337 /* X IN A'RANGE(N). N is an immediate operand, surrounded by
338 BINOP_IN_BOUNDS before and after. A is an array, X an index
339 value. Evaluates to true iff X is within range of the Nth
340 dimension (1-based) of A. (A multi-dimensional array
341 type is represented as array of array of ...) */
342 OP (BINOP_IN_BOUNDS)
344 /* X IN L .. U. True iff L <= X <= U. */
345 OP (TERNOP_IN_RANGE)
347 /* Ada attributes ('Foo). */
348 OP (OP_ATR_FIRST)
349 OP (OP_ATR_LAST)
350 OP (OP_ATR_LENGTH)
351 OP (OP_ATR_POS)
352 OP (OP_ATR_SIZE)
353 OP (OP_ATR_TAG)
354 OP (OP_ATR_VAL)
356 /* Ada type qualification. It is encoded as for UNOP_CAST, above,
357 and denotes the TYPE'(EXPR) construct. */
358 OP (UNOP_QUAL)
360 /* X IN TYPE. The `TYPE' argument is immediate, with
361 UNOP_IN_RANGE before and after it. True iff X is a member of
362 type TYPE (typically a subrange). */
363 OP (UNOP_IN_RANGE)
365 /* An aggregate. A single immediate operand, N>0, gives
366 the number of component specifications that follow. The
367 immediate operand is followed by a second OP_AGGREGATE.
368 Next come N component specifications. A component
369 specification is either an OP_OTHERS (others=>...), an
370 OP_CHOICES (for named associations), or other expression (for
371 positional aggregates only). Aggregates currently
372 occur only as the right sides of assignments. */
373 OP (OP_AGGREGATE)
375 /* ================ Fortran operators ================ */
377 /* This is EXACTLY like OP_FUNCALL but is semantically different.
378 In F77, array subscript expressions, substring expressions and
379 function calls are all exactly the same syntactically. They
380 may only be disambiguated at runtime. Thus this operator,
381 which indicates that we have found something of the form
382 <name> ( <stuff> ). */
383 OP (OP_F77_UNDETERMINED_ARGLIST)
385 /* Single operand builtins. */
386 OP (UNOP_FORTRAN_KIND)
387 OP (UNOP_FORTRAN_ALLOCATED)
388 OP (UNOP_FORTRAN_RANK)
389 OP (UNOP_FORTRAN_SHAPE)
390 OP (UNOP_FORTRAN_LOC)
392 /* Two operand builtins. */
393 OP (BINOP_FORTRAN_MODULO)
395 /* Builtins that take one or two operands. */
396 OP (FORTRAN_CEILING)
397 OP (FORTRAN_FLOOR)
398 OP (FORTRAN_ASSOCIATED)
400 /* Builtins that take one, two or three operands. */
401 OP (FORTRAN_LBOUND)
402 OP (FORTRAN_UBOUND)
403 OP (FORTRAN_CMPLX)
404 OP (FORTRAN_ARRAY_SIZE)