/* Low level packing and unpacking of values for GDB, the GNU Debugger.
- Copyright (C) 1986-2019 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "user-regs.h"
#include <algorithm>
#include "completer.h"
-#include "common/selftest.h"
-#include "common/array-view.h"
+#include "gdbsupport/selftest.h"
+#include "gdbsupport/array-view.h"
+#include "cli/cli-style.h"
/* Definition of a user function. */
struct internal_function
LONGEST bitsize = 0;
/* Only used for bitfields; position of start of field. For
- gdbarch_bits_big_endian=0 targets, it is the position of the LSB. For
- gdbarch_bits_big_endian=1 targets, it is the position of the MSB. */
+ little-endian targets, it is the position of the LSB. For
+ big-endian targets, it is the position of the MSB. */
LONGEST bitpos = 0;
/* The number of references to this value. When a value is created,
fetch it. */
if (value->optimized_out.empty () && value->lazy)
{
- TRY
+ try
{
value_fetch_lazy (value);
}
- CATCH (ex, RETURN_MASK_ERROR)
+ catch (const gdb_exception_error &ex)
{
/* Fall back to checking value->optimized_out. */
}
- END_CATCH
}
return !value->optimized_out.empty ();
intvar = expr->elts[2].internalvar;
/* Only evaluate the expression if the lvalue is void.
- This may still fail if the expresssion is invalid. */
+ This may still fail if the expression is invalid. */
if (intvar->kind == INTERNALVAR_VOID)
evaluate_expression (expr.get ());
}
for (var = internalvars; var; var = var->next)
if (strncmp (var->name, name, len) == 0)
- {
- gdb::unique_xmalloc_ptr<char> copy (xstrdup (var->name));
-
- tracker.add_completion (std::move (copy));
- }
+ tracker.add_completion (make_unique_xstrdup (var->name));
}
/* Create an internal variable with name NAME and with a void value.
{
struct internalvar *var = XNEW (struct internalvar);
- var->name = concat (name, (char *)NULL);
+ var->name = xstrdup (name);
var->kind = INTERNALVAR_VOID;
var->next = internalvars;
internalvars = var;
on this value go back to affect the original internal variable.
Do not do this for INTERNALVAR_MAKE_VALUE variables, as those have
- no underlying modifyable state in the internal variable.
+ no underlying modifiable state in the internal variable.
Likewise, if the variable's value is a computed lvalue, we want
references to it to produce another computed lvalue, where
/* Do nothing. */
}
-/* Clean up if an internal function's command is destroyed. */
-static void
-function_destroyer (struct cmd_list_element *self, void *ignore)
+/* Helper function that does the work for add_internal_function. */
+
+static struct cmd_list_element *
+do_add_internal_function (const char *name, const char *doc,
+ internal_function_fn handler, void *cookie)
{
- xfree ((char *) self->name);
- xfree ((char *) self->doc);
+ struct internal_function *ifn;
+ struct internalvar *var = lookup_internalvar (name);
+
+ ifn = create_internal_function (name, handler, cookie);
+ set_internalvar_function (var, ifn);
+
+ return add_cmd (name, no_class, function_command, doc, &functionlist);
}
-/* Add a new internal function. NAME is the name of the function; DOC
- is a documentation string describing the function. HANDLER is
- called when the function is invoked. COOKIE is an arbitrary
- pointer which is passed to HANDLER and is intended for "user
- data". */
+/* See value.h. */
+
void
add_internal_function (const char *name, const char *doc,
internal_function_fn handler, void *cookie)
{
- struct cmd_list_element *cmd;
- struct internal_function *ifn;
- struct internalvar *var = lookup_internalvar (name);
+ do_add_internal_function (name, doc, handler, cookie);
+}
- ifn = create_internal_function (name, handler, cookie);
- set_internalvar_function (var, ifn);
+/* See value.h. */
- cmd = add_cmd (xstrdup (name), no_class, function_command, (char *) doc,
- &functionlist);
- cmd->destroyer = function_destroyer;
+void
+add_internal_function (gdb::unique_xmalloc_ptr<char> &&name,
+ gdb::unique_xmalloc_ptr<char> &&doc,
+ internal_function_fn handler, void *cookie)
+{
+ struct cmd_list_element *cmd
+ = do_add_internal_function (name.get (), doc.get (), handler, cookie);
+ doc.release ();
+ cmd->doc_allocated = 1;
+ name.release ();
+ cmd->name_allocated = 1;
}
/* Update VALUE before discarding OBJFILE. COPIED_TYPES is used to
}
printf_filtered (("$%s = "), var->name);
- TRY
+ try
{
struct value *val;
val = value_of_internalvar (gdbarch, var);
value_print (val, gdb_stdout, &opts);
}
- CATCH (ex, RETURN_MASK_ERROR)
+ catch (const gdb_exception_error &ex)
{
- fprintf_filtered (gdb_stdout, _("<error: %s>"), ex.message);
+ fprintf_styled (gdb_stdout, metadata_style.style (),
+ _("<error: %s>"), ex.what ());
}
- END_CATCH
printf_filtered (("\n"));
}
LONGEST
unpack_long (struct type *type, const gdb_byte *valaddr)
{
- enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
+ enum bfd_endian byte_order = type_byte_order (type);
enum type_code code = TYPE_CODE (type);
int len = TYPE_LENGTH (type);
int nosign = TYPE_UNSIGNED (type);
case TYPE_CODE_CHAR:
case TYPE_CODE_RANGE:
case TYPE_CODE_MEMBERPTR:
- if (nosign)
- return extract_unsigned_integer (valaddr, len, byte_order);
- else
- return extract_signed_integer (valaddr, len, byte_order);
+ {
+ LONGEST result;
+ if (nosign)
+ result = extract_unsigned_integer (valaddr, len, byte_order);
+ else
+ result = extract_signed_integer (valaddr, len, byte_order);
+ if (code == TYPE_CODE_RANGE)
+ result += TYPE_RANGE_DATA (type)->bias;
+ return result;
+ }
case TYPE_CODE_FLT:
case TYPE_CODE_DECFLOAT:
unpack_bits_as_long (struct type *field_type, const gdb_byte *valaddr,
LONGEST bitpos, LONGEST bitsize)
{
- enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (field_type));
+ enum bfd_endian byte_order = type_byte_order (field_type);
ULONGEST val;
ULONGEST valmask;
int lsbcount;
/* Extract bits. See comment above. */
- if (gdbarch_bits_big_endian (get_type_arch (field_type)))
+ if (byte_order == BFD_ENDIAN_BIG)
lsbcount = (bytes_read * 8 - bitpos % 8 - bitsize);
else
lsbcount = (bitpos % 8);
int dst_bit_offset;
struct type *field_type = value_type (dest_val);
- byte_order = gdbarch_byte_order (get_type_arch (field_type));
+ byte_order = type_byte_order (field_type);
/* First, unpack and sign extend the bitfield as if it was wholly
valid. Optimized out/unavailable bits are read as zero, but
modify_field (struct type *type, gdb_byte *addr,
LONGEST fieldval, LONGEST bitpos, LONGEST bitsize)
{
- enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
+ enum bfd_endian byte_order = type_byte_order (type);
ULONGEST oword;
ULONGEST mask = (ULONGEST) -1 >> (8 * sizeof (ULONGEST) - bitsize);
LONGEST bytesize;
oword = extract_unsigned_integer (addr, bytesize, byte_order);
/* Shifting for bit field depends on endianness of the target machine. */
- if (gdbarch_bits_big_endian (get_type_arch (type)))
+ if (byte_order == BFD_ENDIAN_BIG)
bitpos = bytesize * 8 - bitpos - bitsize;
oword &= ~(mask << bitpos);
void
pack_long (gdb_byte *buf, struct type *type, LONGEST num)
{
- enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
+ enum bfd_endian byte_order = type_byte_order (type);
LONGEST len;
type = check_typedef (type);
switch (TYPE_CODE (type))
{
+ case TYPE_CODE_RANGE:
+ num -= TYPE_RANGE_DATA (type)->bias;
+ /* Fall through. */
case TYPE_CODE_INT:
case TYPE_CODE_CHAR:
case TYPE_CODE_ENUM:
case TYPE_CODE_FLAGS:
case TYPE_CODE_BOOL:
- case TYPE_CODE_RANGE:
case TYPE_CODE_MEMBERPTR:
store_signed_integer (buf, len, byte_order, num);
break;
type = check_typedef (type);
len = TYPE_LENGTH (type);
- byte_order = gdbarch_byte_order (get_type_arch (type));
+ byte_order = type_byte_order (type);
switch (TYPE_CODE (type))
{
return value_from_longest (builtin_type (gdbarch)->builtin_int, ret);
}
-/* Implementation of the convenience function $_cimag. Extracts the
+/* Implementation of the convenience function $_creal. Extracts the
real part from a complex number. */
static struct value *
projects / deliverable / binutils-gdb.git / blobdiff