/* Objective-C language support routines for GDB, the GNU debugger.
- Copyright (C) 2002-2021 Free Software Foundation, Inc.
+ Copyright (C) 2002-2022 Free Software Foundation, Inc.
Contributed by Apple Computer, Inc.
Written by Michael Snyder.
#include "gdbcore.h"
#include "gdbcmd.h"
#include "frame.h"
-#include "gdb_regex.h"
+#include "gdbsupport/gdb_regex.h"
#include "regcache.h"
#include "block.h"
#include "infcall.h"
return nsstringValue;
}
-/* Objective-C name demangling. */
-
-char *
-objc_demangle (const char *mangled, int options)
-{
- char *demangled, *cp;
-
- if (mangled[0] == '_' &&
- (mangled[1] == 'i' || mangled[1] == 'c') &&
- mangled[2] == '_')
- {
- cp = demangled = (char *) xmalloc (strlen (mangled) + 2);
-
- if (mangled[1] == 'i')
- *cp++ = '-'; /* for instance method */
- else
- *cp++ = '+'; /* for class method */
-
- *cp++ = '['; /* opening left brace */
- strcpy(cp, mangled+3); /* Tack on the rest of the mangled name. */
-
- while (*cp && *cp == '_')
- cp++; /* Skip any initial underbars in class
- name. */
-
- cp = strchr(cp, '_');
- if (!cp) /* Find first non-initial underbar. */
- {
- xfree(demangled); /* not mangled name */
- return NULL;
- }
- if (cp[1] == '_') /* Easy case: no category name. */
- {
- *cp++ = ' '; /* Replace two '_' with one ' '. */
- strcpy(cp, mangled + (cp - demangled) + 2);
- }
- else
- {
- *cp++ = '('; /* Less easy case: category name. */
- cp = strchr(cp, '_');
- if (!cp)
- {
- xfree(demangled); /* not mangled name */
- return NULL;
- }
- *cp++ = ')';
- *cp++ = ' '; /* Overwriting 1st char of method name... */
- strcpy(cp, mangled + (cp - demangled)); /* Get it back. */
- }
-
- while (*cp && *cp == '_')
- cp++; /* Skip any initial underbars in
- method name. */
-
- for (; *cp; cp++)
- if (*cp == '_')
- *cp = ':'; /* Replace remaining '_' with ':'. */
-
- *cp++ = ']'; /* closing right brace */
- *cp++ = 0; /* string terminator */
- return demangled;
- }
- else
- return NULL; /* Not an objc mangled name. */
-}
-
-
-/* Table mapping opcodes into strings for printing operators
- and precedences of the operators. */
-
-static const struct op_print objc_op_print_tab[] =
- {
- {",", BINOP_COMMA, PREC_COMMA, 0},
- {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
- {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
- {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
- {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
- {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
- {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
- {"==", BINOP_EQUAL, PREC_EQUAL, 0},
- {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
- {"<=", BINOP_LEQ, PREC_ORDER, 0},
- {">=", BINOP_GEQ, PREC_ORDER, 0},
- {">", BINOP_GTR, PREC_ORDER, 0},
- {"<", BINOP_LESS, PREC_ORDER, 0},
- {">>", BINOP_RSH, PREC_SHIFT, 0},
- {"<<", BINOP_LSH, PREC_SHIFT, 0},
- {"+", BINOP_ADD, PREC_ADD, 0},
- {"-", BINOP_SUB, PREC_ADD, 0},
- {"*", BINOP_MUL, PREC_MUL, 0},
- {"/", BINOP_DIV, PREC_MUL, 0},
- {"%", BINOP_REM, PREC_MUL, 0},
- {"@", BINOP_REPEAT, PREC_REPEAT, 0},
- {"-", UNOP_NEG, PREC_PREFIX, 0},
- {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
- {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0},
- {"*", UNOP_IND, PREC_PREFIX, 0},
- {"&", UNOP_ADDR, PREC_PREFIX, 0},
- {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0},
- {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
- {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
- {NULL, OP_NULL, PREC_NULL, 0}
-};
-
/* Class representing the Objective-C language. */
class objc_language : public language_defn
}
/* See language.h. */
- bool sniff_from_mangled_name (const char *mangled,
- char **demangled) const override
+ bool sniff_from_mangled_name
+ (const char *mangled, gdb::unique_xmalloc_ptr<char> *demangled)
+ const override
{
- *demangled = objc_demangle (mangled, 0);
+ *demangled = demangle_symbol (mangled, 0);
return *demangled != NULL;
}
/* See language.h. */
- char *demangle_symbol (const char *mangled, int options) const override
- {
- return objc_demangle (mangled, options);
- }
+ gdb::unique_xmalloc_ptr<char> demangle_symbol (const char *mangled,
+ int options) const override;
/* See language.h. */
enum macro_expansion macro_expansion () const override
{ return macro_expansion_c; }
+};
- /* See language.h. */
+/* See declaration of objc_language::demangle_symbol above. */
- const struct op_print *opcode_print_table () const override
- { return objc_op_print_tab; }
-};
+gdb::unique_xmalloc_ptr<char>
+objc_language::demangle_symbol (const char *mangled, int options) const
+{
+ char *demangled, *cp;
+
+ if (mangled[0] == '_'
+ && (mangled[1] == 'i' || mangled[1] == 'c')
+ && mangled[2] == '_')
+ {
+ cp = demangled = (char *) xmalloc (strlen (mangled) + 2);
+
+ if (mangled[1] == 'i')
+ *cp++ = '-'; /* for instance method */
+ else
+ *cp++ = '+'; /* for class method */
+
+ *cp++ = '['; /* opening left brace */
+ strcpy(cp, mangled+3); /* Tack on the rest of the mangled name. */
+
+ while (*cp != '\0' && *cp == '_')
+ cp++; /* Skip any initial underbars in class
+ name. */
+
+ cp = strchr(cp, '_');
+ if (cp == nullptr) /* Find first non-initial underbar. */
+ {
+ xfree(demangled); /* not mangled name */
+ return nullptr;
+ }
+ if (cp[1] == '_') /* Easy case: no category name. */
+ {
+ *cp++ = ' '; /* Replace two '_' with one ' '. */
+ strcpy(cp, mangled + (cp - demangled) + 2);
+ }
+ else
+ {
+ *cp++ = '('; /* Less easy case: category name. */
+ cp = strchr(cp, '_');
+ if (cp == nullptr)
+ {
+ xfree(demangled); /* not mangled name */
+ return nullptr;
+ }
+ *cp++ = ')';
+ *cp++ = ' '; /* Overwriting 1st char of method name... */
+ strcpy(cp, mangled + (cp - demangled)); /* Get it back. */
+ }
+
+ while (*cp != '\0' && *cp == '_')
+ cp++; /* Skip any initial underbars in
+ method name. */
+
+ for (; *cp != '\0'; cp++)
+ if (*cp == '_')
+ *cp = ':'; /* Replace remaining '_' with ':'. */
+
+ *cp++ = ']'; /* closing right brace */
+ *cp++ = 0; /* string terminator */
+ return gdb::unique_xmalloc_ptr<char> (demangled);
+ }
+ else
+ return nullptr; /* Not an objc mangled name. */
+}
/* Single instance of the class representing the Objective-C language. */
_("All Objective-C selectors, or those matching REGEXP."));
add_info ("classes", info_classes_command,
_("All Objective-C classes, or those matching REGEXP."));
- add_com ("print-object", class_vars, print_object_command,
- _("Ask an Objective-C object to print itself."));
- add_com_alias ("po", "print-object", class_vars, 1);
+ cmd_list_element *print_object_cmd
+ = add_com ("print-object", class_vars, print_object_command,
+ _("Ask an Objective-C object to print itself."));
+ add_com_alias ("po", print_object_cmd, class_vars, 1);
}
static void
projects / binutils-gdb.git / blobdiff