/* Name mangling for the 3.0 C++ ABI.
- Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
- Written by Alex Samuel <sameul@codesourcery.com>
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007
+ Free Software Foundation, Inc.
+ Written by Alex Samuel <samuel@codesourcery.com>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful, but
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GCC; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
/* This file implements mangling of C++ names according to the IA64
C++ ABI specification. A mangled name encodes a function or
particular constructs when the appropriate decl for that construct
is not available. These are:
- mangle_typeinfo_for_type: typeinfo data
- mangle_typeinfo_string_for_type: typeinfo type name
- mangle_vtbl_for_type: virtual table data
- mangle_vtt_for_type: VTT data
- mangle_ctor_vtbl_for_type: `C-in-B' constructor virtual table data
- mangle_thunk: thunk function or entry
-
-*/
+ mangle_typeinfo_for_type: typeinfo data
+ mangle_typeinfo_string_for_type: typeinfo type name
+ mangle_vtbl_for_type: virtual table data
+ mangle_vtt_for_type: VTT data
+ mangle_ctor_vtbl_for_type: `C-in-B' constructor virtual table data
+ mangle_thunk: thunk function or entry */
#include "config.h"
#include "system.h"
#include "obstack.h"
#include "toplev.h"
#include "varray.h"
+#include "flags.h"
+#include "target.h"
/* Debugging support. */
fprintf (stderr, " %-24s: %-24s\n", (FN), (INPUT))
# define MANGLE_TRACE_TREE(FN, NODE) \
fprintf (stderr, " %-24s: %-24s (%p)\n", \
- (FN), tree_code_name[TREE_CODE (NODE)], (void *) (NODE))
+ (FN), tree_code_name[TREE_CODE (NODE)], (void *) (NODE))
#else
# define MANGLE_TRACE(FN, INPUT)
# define MANGLE_TRACE_TREE(FN, NODE)
&& (PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))))))
/* Things we only need one of. This module is not reentrant. */
-static struct globals
+typedef struct globals GTY(())
{
- /* The name in which we're building the mangled name. */
- struct obstack name_obstack;
-
/* An array of the current substitution candidates, in the order
we've seen them. */
- varray_type substitutions;
+ VEC(tree,gc) *substitutions;
/* The entity that is being mangled. */
- tree entity;
+ tree GTY ((skip)) entity;
/* True if the mangling will be different in a future version of the
ABI. */
bool need_abi_warning;
-} G;
+} globals;
+
+static GTY (()) globals G;
+
+/* The obstack on which we build mangled names. */
+static struct obstack *mangle_obstack;
+
+/* The obstack on which we build mangled names that are not going to
+ be IDENTIFIER_NODEs. */
+static struct obstack name_obstack;
+
+/* The first object on the name_obstack; we use this to free memory
+ allocated on the name_obstack. */
+static void *name_base;
+
+/* An incomplete mangled name. There will be no NUL terminator. If
+ there is no incomplete mangled name, this variable is NULL. */
+static char *partially_mangled_name;
+
+/* The number of characters in the PARTIALLY_MANGLED_NAME. */
+static size_t partially_mangled_name_len;
/* Indices into subst_identifiers. These are identifiers used in
special substitution rules. */
/* Functions for emitting mangled representations of things. */
-static void write_mangled_name (const tree);
+static void write_mangled_name (const tree, bool);
static void write_encoding (const tree);
static void write_name (tree, const int);
static void write_unscoped_name (const tree);
/* Control functions. */
-static inline void start_mangling (const tree);
+static inline void start_mangling (const tree, bool);
static inline const char *finish_mangling (const bool);
static tree mangle_special_for_type (const tree, const char *);
/* Append a single character to the end of the mangled
representation. */
-#define write_char(CHAR) \
- obstack_1grow (&G.name_obstack, (CHAR))
+#define write_char(CHAR) \
+ obstack_1grow (mangle_obstack, (CHAR))
/* Append a sized buffer to the end of the mangled representation. */
-#define write_chars(CHAR, LEN) \
- obstack_grow (&G.name_obstack, (CHAR), (LEN))
+#define write_chars(CHAR, LEN) \
+ obstack_grow (mangle_obstack, (CHAR), (LEN))
/* Append a NUL-terminated string to the end of the mangled
representation. */
-#define write_string(STRING) \
- obstack_grow (&G.name_obstack, (STRING), strlen (STRING))
+#define write_string(STRING) \
+ obstack_grow (mangle_obstack, (STRING), strlen (STRING))
/* Nonzero if NODE1 and NODE2 are both TREE_LIST nodes and have the
same purpose (context, which may be a type) and value (template
decl). See write_template_prefix for more information on what this
is used for. */
-#define NESTED_TEMPLATE_MATCH(NODE1, NODE2) \
- (TREE_CODE (NODE1) == TREE_LIST \
- && TREE_CODE (NODE2) == TREE_LIST \
- && ((TYPE_P (TREE_PURPOSE (NODE1)) \
- && same_type_p (TREE_PURPOSE (NODE1), TREE_PURPOSE (NODE2)))\
- || TREE_PURPOSE (NODE1) == TREE_PURPOSE (NODE2)) \
+#define NESTED_TEMPLATE_MATCH(NODE1, NODE2) \
+ (TREE_CODE (NODE1) == TREE_LIST \
+ && TREE_CODE (NODE2) == TREE_LIST \
+ && ((TYPE_P (TREE_PURPOSE (NODE1)) \
+ && same_type_p (TREE_PURPOSE (NODE1), TREE_PURPOSE (NODE2))) \
+ || TREE_PURPOSE (NODE1) == TREE_PURPOSE (NODE2)) \
&& TREE_VALUE (NODE1) == TREE_VALUE (NODE2))
/* Write out an unsigned quantity in base 10. */
-#define write_unsigned_number(NUMBER) \
+#define write_unsigned_number(NUMBER) \
write_number ((NUMBER), /*unsigned_p=*/1, 10)
+/* Save the current (incomplete) mangled name and release the obstack
+ storage holding it. This function should be used during mangling
+ when making a call that could result in a call to get_identifier,
+ as such a call will clobber the same obstack being used for
+ mangling. This function may not be called twice without an
+ intervening call to restore_partially_mangled_name. */
+
+static void
+save_partially_mangled_name (void)
+{
+ if (mangle_obstack == &ident_hash->stack)
+ {
+ gcc_assert (!partially_mangled_name);
+ partially_mangled_name_len = obstack_object_size (mangle_obstack);
+ partially_mangled_name = XNEWVEC (char, partially_mangled_name_len);
+ memcpy (partially_mangled_name, obstack_base (mangle_obstack),
+ partially_mangled_name_len);
+ obstack_free (mangle_obstack, obstack_finish (mangle_obstack));
+ }
+}
+
+/* Restore the incomplete mangled name saved with
+ save_partially_mangled_name. */
+
+static void
+restore_partially_mangled_name (void)
+{
+ if (partially_mangled_name)
+ {
+ obstack_grow (mangle_obstack, partially_mangled_name,
+ partially_mangled_name_len);
+ free (partially_mangled_name);
+ partially_mangled_name = NULL;
+ }
+}
+
/* If DECL is a template instance, return nonzero and, if
TEMPLATE_INFO is non-NULL, set *TEMPLATE_INFO to its template info.
Otherwise return zero. */
*template_info = TYPE_TEMPLATE_INFO (type);
return 1;
}
- }
+ }
else
{
/* Check if this is a primary template. */
/* Produce debugging output of current substitution candidates. */
static void
-dump_substitution_candidates ()
+dump_substitution_candidates (void)
{
unsigned i;
+ tree el;
fprintf (stderr, " ++ substitutions ");
- for (i = 0; i < VARRAY_ACTIVE_SIZE (G.substitutions); ++i)
+ for (i = 0; VEC_iterate (tree, G.substitutions, i, el); ++i)
{
- tree el = VARRAY_TREE (G.substitutions, i);
const char *name = "???";
if (i > 0)
else if (TYPE_NAME (el))
name = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (el)));
fprintf (stderr, " S%d_ = ", i - 1);
- if (TYPE_P (el) &&
- (CP_TYPE_RESTRICT_P (el)
- || CP_TYPE_VOLATILE_P (el)
+ if (TYPE_P (el) &&
+ (CP_TYPE_RESTRICT_P (el)
+ || CP_TYPE_VOLATILE_P (el)
|| CP_TYPE_CONST_P (el)))
fprintf (stderr, "CV-");
- fprintf (stderr, "%s (%s at %p)\n",
+ fprintf (stderr, "%s (%s at %p)\n",
name, tree_code_name[TREE_CODE (el)], (void *) el);
}
}
tree c;
if (DEBUG_MANGLE)
- fprintf (stderr, " ++ add_substitution (%s at %10p)\n",
+ fprintf (stderr, " ++ add_substitution (%s at %10p)\n",
tree_code_name[TREE_CODE (node)], (void *) node);
/* Get the canonicalized substitution candidate for NODE. */
/* Make sure NODE isn't already a candidate. */
{
int i;
- for (i = VARRAY_ACTIVE_SIZE (G.substitutions); --i >= 0; )
+ tree candidate;
+
+ for (i = 0; VEC_iterate (tree, G.substitutions, i, candidate); i++)
{
- const tree candidate = VARRAY_TREE (G.substitutions, i);
- if ((DECL_P (node)
- && node == candidate)
- || (TYPE_P (node)
- && TYPE_P (candidate)
- && same_type_p (node, candidate)))
- abort ();
+ gcc_assert (!(DECL_P (node) && node == candidate));
+ gcc_assert (!(TYPE_P (node) && TYPE_P (candidate)
+ && same_type_p (node, candidate)));
}
}
#endif /* ENABLE_CHECKING */
/* Put the decl onto the varray of substitution candidates. */
- VARRAY_PUSH_TREE (G.substitutions, node);
+ VEC_safe_push (tree, gc, G.substitutions, node);
if (DEBUG_MANGLE)
dump_substitution_candidates ();
which may be a decl or a CLASS_TYPE, is a template-id with template
name of substitution_index[INDEX] in the ::std namespace. */
-static inline int
+static inline int
is_std_substitution (const tree node,
const substitution_identifier_index_t index)
{
type = node;
decl = TYPE_NAME (node);
}
- else
+ else
/* These are not the droids you're looking for. */
return 0;
return (DECL_NAMESPACE_STD_P (CP_DECL_CONTEXT (decl))
- && TYPE_LANG_SPECIFIC (type)
+ && TYPE_LANG_SPECIFIC (type)
&& TYPE_TEMPLATE_INFO (type)
- && (DECL_NAME (TYPE_TI_TEMPLATE (type))
+ && (DECL_NAME (TYPE_TI_TEMPLATE (type))
== subst_identifiers[index]));
}
return 0;
/* Figure out its template args. */
if (DECL_P (node))
- args = DECL_TI_ARGS (node);
+ args = DECL_TI_ARGS (node);
else if (CLASS_TYPE_P (node))
args = CLASSTYPE_TI_ARGS (node);
else
/* Oops, not a template. */
return 0;
/* NODE's template arg list should be <char>. */
- return
+ return
TREE_VEC_LENGTH (args) == 1
&& TREE_VEC_ELT (args, 0) == char_type_node;
}
First, check standard special-case substitutions.
- <substitution> ::= St
- # ::std
+ <substitution> ::= St
+ # ::std
- ::= Sa
+ ::= Sa
# ::std::allocator
- ::= Sb
- # ::std::basic_string
+ ::= Sb
+ # ::std::basic_string
- ::= Ss
- # ::std::basic_string<char,
+ ::= Ss
+ # ::std::basic_string<char,
::std::char_traits<char>,
::std::allocator<char> >
- ::= Si
- # ::std::basic_istream<char, ::std::char_traits<char> >
+ ::= Si
+ # ::std::basic_istream<char, ::std::char_traits<char> >
- ::= So
- # ::std::basic_ostream<char, ::std::char_traits<char> >
+ ::= So
+ # ::std::basic_ostream<char, ::std::char_traits<char> >
- ::= Sd
- # ::std::basic_iostream<char, ::std::char_traits<char> >
+ ::= Sd
+ # ::std::basic_iostream<char, ::std::char_traits<char> >
Then examine the stack of currently available substitution
candidates for entities appearing earlier in the same mangling
find_substitution (tree node)
{
int i;
- const int size = VARRAY_ACTIVE_SIZE (G.substitutions);
+ const int size = VEC_length (tree, G.substitutions);
tree decl;
tree type;
type = TYPE_P (node) ? node : TREE_TYPE (node);
/* Check for std::allocator. */
- if (decl
+ if (decl
&& is_std_substitution (decl, SUBID_ALLOCATOR)
&& !CLASSTYPE_USE_TEMPLATE (TREE_TYPE (decl)))
{
{
if (TYPE_P (node))
{
- /* If this is a type (i.e. a fully-qualified template-id),
- check for
- std::basic_string <char,
- std::char_traits<char>,
+ /* If this is a type (i.e. a fully-qualified template-id),
+ check for
+ std::basic_string <char,
+ std::char_traits<char>,
std::allocator<char> > . */
if (cp_type_quals (type) == TYPE_UNQUALIFIED
&& CLASSTYPE_USE_TEMPLATE (type))
&& CLASSTYPE_USE_TEMPLATE (type)
&& CLASSTYPE_TEMPLATE_INFO (type) != NULL)
{
- /* First, check for the template
+ /* First, check for the template
args <char, std::char_traits<char> > . */
tree args = CLASSTYPE_TI_ARGS (type);
if (TREE_VEC_LENGTH (args) == 2
SUBID_CHAR_TRAITS))
{
/* Got them. Is this basic_istream? */
- tree name = DECL_NAME (CLASSTYPE_TI_TEMPLATE (type));
- if (name == subst_identifiers[SUBID_BASIC_ISTREAM])
+ if (is_std_substitution (decl, SUBID_BASIC_ISTREAM))
{
write_string ("Si");
return 1;
}
/* Or basic_ostream? */
- else if (name == subst_identifiers[SUBID_BASIC_OSTREAM])
+ else if (is_std_substitution (decl, SUBID_BASIC_OSTREAM))
{
write_string ("So");
return 1;
}
/* Or basic_iostream? */
- else if (name == subst_identifiers[SUBID_BASIC_IOSTREAM])
+ else if (is_std_substitution (decl, SUBID_BASIC_IOSTREAM))
{
write_string ("Sd");
return 1;
operation. */
for (i = 0; i < size; ++i)
{
- tree candidate = VARRAY_TREE (G.substitutions, i);
+ tree candidate = VEC_index (tree, G.substitutions, i);
/* NODE is a matched to a candidate if it's the same decl node or
if it's the same type. */
if (decl == candidate
}
-/* <mangled-name> ::= _Z <encoding> */
+/* TOP_LEVEL is true, if this is being called at outermost level of
+ mangling. It should be false when mangling a decl appearing in an
+ expression within some other mangling.
-static inline void
-write_mangled_name (const tree decl)
+ <mangled-name> ::= _Z <encoding> */
+
+static void
+write_mangled_name (const tree decl, bool top_level)
{
MANGLE_TRACE_TREE ("mangled-name", decl);
- if (DECL_LANG_SPECIFIC (decl)
- && DECL_EXTERN_C_FUNCTION_P (decl)
- && ! DECL_OVERLOADED_OPERATOR_P (decl))
- /* The standard notes:
- "The <encoding> of an extern "C" function is treated like
- global-scope data, i.e. as its <source-name> without a type."
- We cannot write overloaded operators that way though,
- because it contains characters invalid in assembler. */
- write_source_name (DECL_NAME (decl));
+ if (/* The names of `extern "C"' functions are not mangled. */
+ DECL_EXTERN_C_FUNCTION_P (decl)
+ /* But overloaded operator names *are* mangled. */
+ && !DECL_OVERLOADED_OPERATOR_P (decl))
+ {
+ unmangled_name:;
+
+ if (top_level)
+ write_string (IDENTIFIER_POINTER (DECL_NAME (decl)));
+ else
+ {
+ /* The standard notes: "The <encoding> of an extern "C"
+ function is treated like global-scope data, i.e. as its
+ <source-name> without a type." We cannot write
+ overloaded operators that way though, because it contains
+ characters invalid in assembler. */
+ if (abi_version_at_least (2))
+ write_string ("_Z");
+ else
+ G.need_abi_warning = true;
+ write_source_name (DECL_NAME (decl));
+ }
+ }
+ else if (TREE_CODE (decl) == VAR_DECL
+ /* The names of non-static global variables aren't mangled. */
+ && DECL_EXTERNAL_LINKAGE_P (decl)
+ && (CP_DECL_CONTEXT (decl) == global_namespace
+ /* And neither are `extern "C"' variables. */
+ || DECL_EXTERN_C_P (decl)))
+ {
+ if (top_level || abi_version_at_least (2))
+ goto unmangled_name;
+ else
+ {
+ G.need_abi_warning = true;
+ goto mangled_name;
+ }
+ }
else
- /* C++ name; needs to be mangled. */
{
+ mangled_name:;
write_string ("_Z");
write_encoding (decl);
+ if (DECL_LANG_SPECIFIC (decl)
+ && (DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (decl)
+ || DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (decl)))
+ /* We need a distinct mangled name for these entities, but
+ we should never actually output it. So, we append some
+ characters the assembler won't like. */
+ write_string (" *INTERNAL* ");
}
}
if (TREE_CODE (decl) == FUNCTION_DECL)
{
tree fn_type;
+ tree d;
if (decl_is_template_id (decl, NULL))
- fn_type = get_mostly_instantiated_function_type (decl);
+ {
+ save_partially_mangled_name ();
+ fn_type = get_mostly_instantiated_function_type (decl);
+ restore_partially_mangled_name ();
+ /* FN_TYPE will not have parameter types for in-charge or
+ VTT parameters. Therefore, we pass NULL_TREE to
+ write_bare_function_type -- otherwise, it will get
+ confused about which artificial parameters to skip. */
+ d = NULL_TREE;
+ }
else
- fn_type = TREE_TYPE (decl);
+ {
+ fn_type = TREE_TYPE (decl);
+ d = decl;
+ }
- write_bare_function_type (fn_type,
+ write_bare_function_type (fn_type,
(!DECL_CONSTRUCTOR_P (decl)
&& !DECL_DESTRUCTOR_P (decl)
&& !DECL_CONV_FN_P (decl)
&& decl_is_template_id (decl, NULL)),
- decl);
+ d);
}
}
/* <name> ::= <unscoped-name>
- ::= <unscoped-template-name> <template-args>
+ ::= <unscoped-template-name> <template-args>
::= <nested-name>
- ::= <local-name>
+ ::= <local-name>
If IGNORE_LOCAL_SCOPE is nonzero, this production of <name> is
called from <local-name>, which mangles the enclosing scope
latter with a special substitution. Also, a name that is
directly in a local function scope is also mangled with
<unscoped-name> rather than a full <nested-name>. */
- if (context == NULL
- || context == global_namespace
+ if (context == NULL
+ || context == global_namespace
|| DECL_NAMESPACE_STD_P (context)
|| (ignore_local_scope && TREE_CODE (context) == FUNCTION_DECL))
{
else
{
/* Handle local names, unless we asked not to (that is, invoked
- under <local-name>, to handle only the part of the name under
- the local scope). */
+ under <local-name>, to handle only the part of the name under
+ the local scope). */
if (!ignore_local_scope)
- {
+ {
/* Scan up the list of scope context, looking for a
function. If we find one, this entity is in local
function scope. local_entity tracks context one scope
}
/* <unscoped-name> ::= <unqualified-name>
- ::= St <unqualified-name> # ::std:: */
+ ::= St <unqualified-name> # ::std:: */
static void
write_unscoped_name (const tree decl)
write_string ("St");
write_unqualified_name (decl);
}
- /* If not, it should be either in the global namespace, or directly
- in a local function scope. */
- else if (context == global_namespace
- || context == NULL
- || TREE_CODE (context) == FUNCTION_DECL)
- write_unqualified_name (decl);
- else
- abort ();
+ else
+ {
+ /* If not, it should be either in the global namespace, or directly
+ in a local function scope. */
+ gcc_assert (context == global_namespace
+ || context == NULL
+ || TREE_CODE (context) == FUNCTION_DECL);
+
+ write_unqualified_name (decl);
+ }
}
/* <unscoped-template-name> ::= <unscoped-name>
- ::= <substitution> */
+ ::= <substitution> */
static void
write_unscoped_template_name (const tree decl)
/* Write the nested name, including CV-qualifiers, of DECL.
- <nested-name> ::= N [<CV-qualifiers>] <prefix> <unqualified-name> E
- ::= N [<CV-qualifiers>] <template-prefix> <template-args> E
+ <nested-name> ::= N [<CV-qualifiers>] <prefix> <unqualified-name> E
+ ::= N [<CV-qualifiers>] <template-prefix> <template-args> E
<CV-qualifiers> ::= [r] [V] [K] */
MANGLE_TRACE_TREE ("nested-name", decl);
write_char ('N');
-
+
/* Write CV-qualifiers, if this is a member function. */
- if (TREE_CODE (decl) == FUNCTION_DECL
+ if (TREE_CODE (decl) == FUNCTION_DECL
&& DECL_NONSTATIC_MEMBER_FUNCTION_P (decl))
{
if (DECL_VOLATILE_MEMFUNC_P (decl))
}
/* <prefix> ::= <prefix> <unqualified-name>
- ::= <template-param>
- ::= <template-prefix> <template-args>
+ ::= <template-param>
+ ::= <template-prefix> <template-args>
::= # empty
::= <substitution> */
}
/* In G++ 3.2, the name of the template parameter was used. */
- if (TREE_CODE (node) == TEMPLATE_TYPE_PARM
+ if (TREE_CODE (node) == TEMPLATE_TYPE_PARM
&& !abi_version_at_least (2))
G.need_abi_warning = true;
}
/* <template-prefix> ::= <prefix> <template component>
- ::= <template-param>
- ::= <substitution> */
+ ::= <template-param>
+ ::= <substitution> */
static void
write_template_prefix (const tree node)
/* Find the template decl. */
if (decl_is_template_id (decl, &template_info))
template = TI_TEMPLATE (template_info);
- else if (CLASSTYPE_TEMPLATE_ID_P (type))
- template = TYPE_TI_TEMPLATE (type);
else
- /* Oops, not a template. */
- abort ();
+ {
+ gcc_assert (CLASSTYPE_TEMPLATE_ID_P (type));
+
+ template = TYPE_TI_TEMPLATE (type);
+ }
/* For a member template, though, the template name for the
innermost name must have all the outer template levels
}
/* We don't need to handle thunks, vtables, or VTTs here. Those are
- mangled through special entry points.
+ mangled through special entry points.
<unqualified-name> ::= <operator-name>
- ::= <special-name>
- ::= <source-name> */
+ ::= <special-name>
+ ::= <source-name>
+ ::= <local-source-name>
+
+ <local-source-name> ::= L <source-name> <discriminator> */
static void
write_unqualified_name (const tree decl)
write_special_name_constructor (decl);
else if (DECL_LANG_SPECIFIC (decl) != NULL && DECL_DESTRUCTOR_P (decl))
write_special_name_destructor (decl);
- else if (DECL_CONV_FN_P (decl))
+ else if (DECL_NAME (decl) == NULL_TREE)
+ write_source_name (DECL_ASSEMBLER_NAME (decl));
+ else if (DECL_CONV_FN_P (decl))
{
- /* Conversion operator. Handle it right here.
- <operator> ::= cv <type> */
+ /* Conversion operator. Handle it right here.
+ <operator> ::= cv <type> */
tree type;
if (decl_is_template_id (decl, NULL))
{
- tree fn_type = get_mostly_instantiated_function_type (decl);
+ tree fn_type;
+ save_partially_mangled_name ();
+ fn_type = get_mostly_instantiated_function_type (decl);
+ restore_partially_mangled_name ();
type = TREE_TYPE (fn_type);
}
else
oni = assignment_operator_name_info;
else
oni = operator_name_info;
-
+
write_string (oni[DECL_OVERLOADED_OPERATOR_P (decl)].mangled_name);
}
+ else if (VAR_OR_FUNCTION_DECL_P (decl) && ! TREE_PUBLIC (decl)
+ && DECL_NAMESPACE_SCOPE_P (decl)
+ && decl_linkage (decl) == lk_internal)
+ {
+ MANGLE_TRACE_TREE ("local-source-name", decl);
+ write_char ('L');
+ write_source_name (DECL_NAME (decl));
+ /* The default discriminator is 1, and that's all we ever use,
+ so there's no code to output one here. */
+ }
else
write_source_name (DECL_NAME (decl));
}
write_type (type);
}
-/* Non-termial <source-name>. IDENTIFIER is an IDENTIFIER_NODE.
+/* Non-terminal <source-name>. IDENTIFIER is an IDENTIFIER_NODE.
<source-name> ::= </length/ number> <identifier> */
{
static const char base_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
unsigned digits = 0;
-
+
while (number)
{
unsigned HOST_WIDE_INT d = number / base;
-
+
*--buffer = base_digits[number - d * base];
digits++;
number = d;
representable. */
chunk = 1000000000;
chunk_digits = 9;
-
+
if (sizeof (HOST_WIDE_INT) >= 8)
{
/* It is at least 64 bits, so 10^18 is representable. */
chunk_digits = 18;
chunk *= chunk;
}
-
+
type = c_common_signed_or_unsigned_type (1, TREE_TYPE (cst));
- base = build_int_2 (chunk, 0);
- n = build_int_2 (TREE_INT_CST_LOW (cst), TREE_INT_CST_HIGH (cst));
- TREE_TYPE (n) = TREE_TYPE (base) = type;
+ base = build_int_cstu (type, chunk);
+ n = build_int_cst_wide (type,
+ TREE_INT_CST_LOW (cst), TREE_INT_CST_HIGH (cst));
if (sign < 0)
{
write_char ('n');
- n = fold (build1 (NEGATE_EXPR, type, n));
+ n = fold_build1 (NEGATE_EXPR, type, n);
}
do
{
- tree d = fold (build (FLOOR_DIV_EXPR, type, n, base));
- tree tmp = fold (build (MULT_EXPR, type, d, base));
+ tree d = fold_build2 (FLOOR_DIV_EXPR, type, n, base);
+ tree tmp = fold_build2 (MULT_EXPR, type, d, base);
unsigned c;
done = integer_zerop (d);
- tmp = fold (build (MINUS_EXPR, type, n, tmp));
+ tmp = fold_build2 (MINUS_EXPR, type, n, tmp);
c = hwint_to_ascii (TREE_INT_CST_LOW (tmp), 10, ptr,
- done ? 1 : chunk_digits);
+ done ? 1 : chunk_digits);
ptr -= c;
count += c;
n = d;
while (!done);
write_chars (ptr, count);
}
- else
+ else
{
/* A small num. */
unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (cst);
-
+
if (sign < 0)
{
write_char ('n');
}
}
-/* Write out a floating-point literal.
-
+/* Write out a floating-point literal.
+
"Floating-point literals are encoded using the bit pattern of the
target processor's internal representation of that number, as a
fixed-length lowercase hexadecimal string, high-order bytes first
for floating point numbers. (Spaces are for readability, not
part of the encoding.)
- 1.0f Lf 3f80 0000 E
- -1.0f Lf bf80 0000 E
- 1.17549435e-38f Lf 0080 0000 E
- 1.40129846e-45f Lf 0000 0001 E
- 0.0f Lf 0000 0000 E"
+ 1.0f Lf 3f80 0000 E
+ -1.0f Lf bf80 0000 E
+ 1.17549435e-38f Lf 0080 0000 E
+ 1.40129846e-45f Lf 0000 0001 E
+ 0.0f Lf 0000 0000 E"
Caller is responsible for the Lx and the E. */
static void
TYPE_MODE (type));
/* The value in target_real is in the target word order,
- so we must write it out backward if that happens to be
+ so we must write it out backward if that happens to be
little-endian. write_number cannot be used, it will
produce uppercase. */
if (FLOAT_WORDS_BIG_ENDIAN)
for (; i != limit; i += dir)
{
- sprintf (buffer, "%08lx", target_real[i]);
+ sprintf (buffer, "%08lx", (unsigned long) target_real[i]);
write_chars (buffer, 8);
}
}
format for REAL_VALUE_TYPE. */
size_t i;
for (i = 0; i < sizeof (TREE_REAL_CST (value)); ++i)
- write_number (((unsigned char *) &TREE_REAL_CST (value))[i],
+ write_number (((unsigned char *) &TREE_REAL_CST (value))[i],
/*unsigned_p*/ 1,
/*base*/ 16);
G.need_abi_warning = 1;
}
/* Handle constructor productions of non-terminal <special-name>.
- CTOR is a constructor FUNCTION_DECL.
+ CTOR is a constructor FUNCTION_DECL.
<special-name> ::= C1 # complete object constructor
- ::= C2 # base object constructor
- ::= C3 # complete object allocating constructor
+ ::= C2 # base object constructor
+ ::= C3 # complete object allocating constructor
- Currently, allocating constructors are never used.
+ Currently, allocating constructors are never used.
We also need to provide mangled names for the maybe-in-charge
constructor, so we treat it here too. mangle_decl_string will
static void
write_special_name_constructor (const tree ctor)
{
- if (DECL_COMPLETE_CONSTRUCTOR_P (ctor)
- /* Even though we don't ever emit a definition of the
- old-style destructor, we still have to consider entities
- (like static variables) nested inside it. */
- || DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (ctor))
- write_string ("C1");
- else if (DECL_BASE_CONSTRUCTOR_P (ctor))
+ if (DECL_BASE_CONSTRUCTOR_P (ctor))
write_string ("C2");
else
- abort ();
+ {
+ gcc_assert (DECL_COMPLETE_CONSTRUCTOR_P (ctor)
+ /* Even though we don't ever emit a definition of
+ the old-style destructor, we still have to
+ consider entities (like static variables) nested
+ inside it. */
+ || DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (ctor));
+ write_string ("C1");
+ }
}
/* Handle destructor productions of non-terminal <special-name>.
- DTOR is a destructor FUNCTION_DECL.
+ DTOR is a destructor FUNCTION_DECL.
<special-name> ::= D0 # deleting (in-charge) destructor
- ::= D1 # complete object (in-charge) destructor
- ::= D2 # base object (not-in-charge) destructor
+ ::= D1 # complete object (in-charge) destructor
+ ::= D2 # base object (not-in-charge) destructor
We also need to provide mangled names for the maybe-incharge
destructor, so we treat it here too. mangle_decl_string will
{
if (DECL_DELETING_DESTRUCTOR_P (dtor))
write_string ("D0");
- else if (DECL_COMPLETE_DESTRUCTOR_P (dtor)
- /* Even though we don't ever emit a definition of the
- old-style destructor, we still have to consider entities
- (like static variables) nested inside it. */
- || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (dtor))
- write_string ("D1");
else if (DECL_BASE_DESTRUCTOR_P (dtor))
write_string ("D2");
else
- abort ();
+ {
+ gcc_assert (DECL_COMPLETE_DESTRUCTOR_P (dtor)
+ /* Even though we don't ever emit a definition of
+ the old-style destructor, we still have to
+ consider entities (like static variables) nested
+ inside it. */
+ || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (dtor));
+ write_string ("D1");
+ }
}
/* Return the discriminator for ENTITY appearing inside
static int
discriminator_for_local_entity (tree entity)
{
- tree *type;
-
/* Assume this is the only local entity with this name. */
int discriminator = 0;
discriminator = DECL_DISCRIMINATOR (entity);
else if (TREE_CODE (entity) == TYPE_DECL)
{
+ int ix;
+
/* Scan the list of local classes. */
entity = TREE_TYPE (entity);
- for (type = &VARRAY_TREE (local_classes, 0); *type != entity; ++type)
- if (TYPE_IDENTIFIER (*type) == TYPE_IDENTIFIER (entity)
- && TYPE_CONTEXT (*type) == TYPE_CONTEXT (entity))
- ++discriminator;
- }
+ for (ix = 0; ; ix++)
+ {
+ tree type = VEC_index (tree, local_classes, ix);
+ if (type == entity)
+ break;
+ if (TYPE_IDENTIFIER (type) == TYPE_IDENTIFIER (entity)
+ && TYPE_CONTEXT (type) == TYPE_CONTEXT (entity))
+ ++discriminator;
+ }
+ }
return discriminator;
}
/* Return the discriminator for STRING, a string literal used inside
- FUNCTION. The disciminator is the lexical ordinal of STRING among
+ FUNCTION. The discriminator is the lexical ordinal of STRING among
string literals used in FUNCTION. */
static int
return 0;
}
-/* <discriminator> := _ <number>
+/* <discriminator> := _ <number>
The discriminator is used only for the second and later occurrences
of the same name within a single function. In this case <number> is
of ENTITY.
<local-name> := Z <function encoding> E <entity name> [<discriminator>]
- := Z <function encoding> E s [<discriminator>] */
+ := Z <function encoding> E s [<discriminator>] */
static void
write_local_name (const tree function, const tree local_entity,
if (TREE_CODE (entity) == STRING_CST)
{
write_char ('s');
- write_discriminator (discriminator_for_string_literal (function,
+ write_discriminator (discriminator_for_string_literal (function,
entity));
}
else
}
}
-/* Non-terminals <type> and <CV-qualifier>.
+/* Non-terminals <type> and <CV-qualifier>.
<type> ::= <builtin-type>
- ::= <function-type>
- ::= <class-enum-type>
- ::= <array-type>
- ::= <pointer-to-member-type>
- ::= <template-param>
- ::= <substitution>
- ::= <CV-qualifier>
- ::= P <type> # pointer-to
- ::= R <type> # reference-to
- ::= C <type> # complex pair (C 2000)
- ::= G <type> # imaginary (C 2000) [not supported]
- ::= U <source-name> <type> # vendor extended type qualifier
+ ::= <function-type>
+ ::= <class-enum-type>
+ ::= <array-type>
+ ::= <pointer-to-member-type>
+ ::= <template-param>
+ ::= <substitution>
+ ::= <CV-qualifier>
+ ::= P <type> # pointer-to
+ ::= R <type> # reference-to
+ ::= C <type> # complex pair (C 2000)
+ ::= G <type> # imaginary (C 2000) [not supported]
+ ::= U <source-name> <type> # vendor extended type qualifier
+
+ C++0x extensions
+
+ <type> ::= RR <type> # rvalue reference-to
+ <type> ::= Dt <expression> # decltype of an id-expression or
+ # class member access
+ <type> ::= DT <expression> # decltype of an expression
TYPE is a type node. */
-static void
+static void
write_type (tree type)
{
/* This gets set to nonzero if TYPE turns out to be a (possibly
if (find_substitution (type))
return;
-
+
if (write_CV_qualifiers_for_type (type) > 0)
/* If TYPE was CV-qualified, we just wrote the qualifiers; now
mangle the unqualified type. The recursive call is needed here
write_array_type (type);
else
{
+ tree type_orig = type;
+
/* See through any typedefs. */
type = TYPE_MAIN_VARIANT (type);
if (TYPE_PTRMEM_P (type))
write_pointer_to_member_type (type);
- else switch (TREE_CODE (type))
- {
- case VOID_TYPE:
- case BOOLEAN_TYPE:
- case INTEGER_TYPE: /* Includes wchar_t. */
- case REAL_TYPE:
- /* If this is a typedef, TYPE may not be one of
- the standard builtin type nodes, but an alias of one. Use
- TYPE_MAIN_VARIANT to get to the underlying builtin type. */
- write_builtin_type (TYPE_MAIN_VARIANT (type));
- ++is_builtin_type;
- break;
-
- case COMPLEX_TYPE:
- write_char ('C');
- write_type (TREE_TYPE (type));
- break;
-
- case FUNCTION_TYPE:
- case METHOD_TYPE:
- write_function_type (type);
- break;
-
- case UNION_TYPE:
- case RECORD_TYPE:
- case ENUMERAL_TYPE:
- /* A pointer-to-member function is represented as a special
- RECORD_TYPE, so check for this first. */
- if (TYPE_PTRMEMFUNC_P (type))
- write_pointer_to_member_type (type);
- else
- write_class_enum_type (type);
- break;
-
- case TYPENAME_TYPE:
- case UNBOUND_CLASS_TEMPLATE:
- /* We handle TYPENAME_TYPEs and UNBOUND_CLASS_TEMPLATEs like
- ordinary nested names. */
- write_nested_name (TYPE_STUB_DECL (type));
- break;
-
- case POINTER_TYPE:
- write_char ('P');
- write_type (TREE_TYPE (type));
- break;
-
- case REFERENCE_TYPE:
- write_char ('R');
- write_type (TREE_TYPE (type));
- break;
-
- case TEMPLATE_TYPE_PARM:
- case TEMPLATE_PARM_INDEX:
- write_template_param (type);
- break;
-
- case TEMPLATE_TEMPLATE_PARM:
- write_template_template_param (type);
- break;
-
- case BOUND_TEMPLATE_TEMPLATE_PARM:
- write_template_template_param (type);
- write_template_args
- (TI_ARGS (TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (type)));
- break;
+ else
+ {
+ /* Handle any target-specific fundamental types. */
+ const char *target_mangling
+ = targetm.mangle_type (type_orig);
- case VECTOR_TYPE:
- write_string ("U8__vector");
- write_type (TREE_TYPE (type));
- break;
+ if (target_mangling)
+ {
+ write_string (target_mangling);
+ return;
+ }
- default:
- abort ();
+ switch (TREE_CODE (type))
+ {
+ case VOID_TYPE:
+ case BOOLEAN_TYPE:
+ case INTEGER_TYPE: /* Includes wchar_t. */
+ case REAL_TYPE:
+ {
+ /* If this is a typedef, TYPE may not be one of
+ the standard builtin type nodes, but an alias of one. Use
+ TYPE_MAIN_VARIANT to get to the underlying builtin type. */
+ write_builtin_type (TYPE_MAIN_VARIANT (type));
+ ++is_builtin_type;
+ }
+ break;
+
+ case COMPLEX_TYPE:
+ write_char ('C');
+ write_type (TREE_TYPE (type));
+ break;
+
+ case FUNCTION_TYPE:
+ case METHOD_TYPE:
+ write_function_type (type);
+ break;
+
+ case UNION_TYPE:
+ case RECORD_TYPE:
+ case ENUMERAL_TYPE:
+ /* A pointer-to-member function is represented as a special
+ RECORD_TYPE, so check for this first. */
+ if (TYPE_PTRMEMFUNC_P (type))
+ write_pointer_to_member_type (type);
+ else
+ write_class_enum_type (type);
+ break;
+
+ case TYPENAME_TYPE:
+ case UNBOUND_CLASS_TEMPLATE:
+ /* We handle TYPENAME_TYPEs and UNBOUND_CLASS_TEMPLATEs like
+ ordinary nested names. */
+ write_nested_name (TYPE_STUB_DECL (type));
+ break;
+
+ case POINTER_TYPE:
+ write_char ('P');
+ write_type (TREE_TYPE (type));
+ break;
+
+ case REFERENCE_TYPE:
+ if (TYPE_REF_IS_RVALUE (type))
+ write_char('O');
+ else
+ write_char ('R');
+ write_type (TREE_TYPE (type));
+ break;
+
+ case TEMPLATE_TYPE_PARM:
+ case TEMPLATE_PARM_INDEX:
+ write_template_param (type);
+ break;
+
+ case TEMPLATE_TEMPLATE_PARM:
+ write_template_template_param (type);
+ break;
+
+ case BOUND_TEMPLATE_TEMPLATE_PARM:
+ write_template_template_param (type);
+ write_template_args
+ (TI_ARGS (TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (type)));
+ break;
+
+ case VECTOR_TYPE:
+ write_string ("U8__vector");
+ write_type (TREE_TYPE (type));
+ break;
+
+ case TYPE_PACK_EXPANSION:
+ write_string ("U10__variadic");
+ write_type (PACK_EXPANSION_PATTERN (type));
+ break;
+
+ case DECLTYPE_TYPE:
+ write_char ('D');
+ if (DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P (type))
+ write_char ('t');
+ else
+ write_char ('T');
+ write_expression (DECLTYPE_TYPE_EXPR (type));
+ write_char ('E');
+ break;
+
+ case TYPEOF_TYPE:
+ sorry ("mangling typeof, use decltype instead");
+ break;
+
+ default:
+ gcc_unreachable ();
+ }
}
}
"In cases where multiple order-insensitive qualifiers are
present, they should be ordered 'K' (closest to the base type),
- 'V', 'r', and 'U' (farthest from the base type) ..."
+ 'V', 'r', and 'U' (farthest from the base type) ..."
Note that we do not use cp_type_quals below; given "const
int[3]", the "const" is emitted with the "int", not with the
return num_qualifiers;
}
-/* Non-terminal <builtin-type>.
-
- <builtin-type> ::= v # void
- ::= b # bool
- ::= w # wchar_t
- ::= c # char
- ::= a # signed char
- ::= h # unsigned char
- ::= s # short
- ::= t # unsigned short
- ::= i # int
- ::= j # unsigned int
- ::= l # long
- ::= m # unsigned long
- ::= x # long long, __int64
- ::= y # unsigned long long, __int64
- ::= n # __int128
- ::= o # unsigned __int128
- ::= f # float
- ::= d # double
- ::= e # long double, __float80
- ::= g # __float128 [not supported]
- ::= u <source-name> # vendor extended type */
-
-static void
+/* Non-terminal <builtin-type>.
+
+ <builtin-type> ::= v # void
+ ::= b # bool
+ ::= w # wchar_t
+ ::= c # char
+ ::= a # signed char
+ ::= h # unsigned char
+ ::= s # short
+ ::= t # unsigned short
+ ::= i # int
+ ::= j # unsigned int
+ ::= l # long
+ ::= m # unsigned long
+ ::= x # long long, __int64
+ ::= y # unsigned long long, __int64
+ ::= n # __int128
+ ::= o # unsigned __int128
+ ::= f # float
+ ::= d # double
+ ::= e # long double, __float80
+ ::= g # __float128 [not supported]
+ ::= u <source-name> # vendor extended type */
+
+static void
write_builtin_type (tree type)
{
switch (TREE_CODE (type))
break;
case INTEGER_TYPE:
- /* If this is size_t, get the underlying int type. */
- if (TYPE_IS_SIZETYPE (type))
- type = TYPE_DOMAIN (type);
-
/* TYPE may still be wchar_t, since that isn't in
integer_type_nodes. */
if (type == wchar_type_node)
if (itk == itk_none)
{
tree t = c_common_type_for_mode (TYPE_MODE (type),
- TREE_UNSIGNED (type));
- if (type == t)
+ TYPE_UNSIGNED (type));
+ if (type != t)
{
- if (TYPE_PRECISION (type) == 128)
- write_char (TREE_UNSIGNED (type) ? 'o' : 'n');
- else
- /* Couldn't find this type. */
- abort ();
+ type = t;
+ goto iagain;
}
+
+ if (TYPE_PRECISION (type) == 128)
+ write_char (TYPE_UNSIGNED (type) ? 'o' : 'n');
else
{
- type = t;
- goto iagain;
+ /* Allow for cases where TYPE is not one of the shared
+ integer type nodes and write a "vendor extended builtin
+ type" with a name the form intN or uintN, respectively.
+ Situations like this can happen if you have an
+ __attribute__((__mode__(__SI__))) type and use exotic
+ switches like '-mint8' on AVR. Of course, this is
+ undefined by the C++ ABI (and '-mint8' is not even
+ Standard C conforming), but when using such special
+ options you're pretty much in nowhere land anyway. */
+ const char *prefix;
+ char prec[11]; /* up to ten digits for an unsigned */
+
+ prefix = TYPE_UNSIGNED (type) ? "uint" : "int";
+ sprintf (prec, "%u", (unsigned) TYPE_PRECISION (type));
+ write_char ('u'); /* "vendor extended builtin type" */
+ write_unsigned_number (strlen (prefix) + strlen (prec));
+ write_string (prefix);
+ write_string (prec);
}
}
}
else if (type == long_double_type_node)
write_char ('e');
else
- abort ();
+ gcc_unreachable ();
break;
default:
- abort ();
+ gcc_unreachable ();
}
}
extern "C" typedef void function_t();
function_t f; // f has C++ linkage, but its type is
- // `extern "C"'
+ // `extern "C"'
typedef void function_t();
extern "C" function_t f; // Vice versa.
See [dcl.link]. */
- write_bare_function_type (type, /*include_return_type_p=*/1,
+ write_bare_function_type (type, /*include_return_type_p=*/1,
/*decl=*/NULL);
write_char ('E');
}
is mangled before the parameter types. If non-NULL, DECL is
FUNCTION_DECL for the function whose type is being emitted.
- <bare-function-type> ::= </signature/ type>+ */
+ If DECL is a member of a Java type, then a literal 'J'
+ is output and the return type is mangled as if INCLUDE_RETURN_TYPE
+ were nonzero.
+
+ <bare-function-type> ::= [J]</signature/ type>+ */
static void
write_bare_function_type (const tree type, const int include_return_type_p,
const tree decl)
{
+ int java_method_p;
+
MANGLE_TRACE_TREE ("bare-function-type", type);
+ /* Detect Java methods and emit special encoding. */
+ if (decl != NULL
+ && DECL_FUNCTION_MEMBER_P (decl)
+ && TYPE_FOR_JAVA (DECL_CONTEXT (decl))
+ && !DECL_CONSTRUCTOR_P (decl)
+ && !DECL_DESTRUCTOR_P (decl)
+ && !DECL_CONV_FN_P (decl))
+ {
+ java_method_p = 1;
+ write_char ('J');
+ }
+ else
+ {
+ java_method_p = 0;
+ }
+
/* Mangle the return type, if requested. */
- if (include_return_type_p)
+ if (include_return_type_p || java_method_p)
write_type (TREE_TYPE (type));
/* Now mangle the types of the arguments. */
- write_method_parms (TYPE_ARG_TYPES (type),
+ write_method_parms (TYPE_ARG_TYPES (type),
TREE_CODE (type) == METHOD_TYPE,
decl);
}
int varargs_p = 1;
/* If this is a member function, skip the first arg, which is the
- this pointer.
+ this pointer.
"Member functions do not encode the type of their implicit this
- parameter."
-
+ parameter."
+
Similarly, there's no need to mangle artificial parameters, like
the VTT parameters for constructors and destructors. */
if (method_p)
}
}
- for (first_parm_type = parm_types;
- parm_types;
+ for (first_parm_type = parm_types;
+ parm_types;
parm_types = TREE_CHAIN (parm_types))
{
tree parm = TREE_VALUE (parm_types);
fixed-length. */
varargs_p = 0;
/* A void type better be the last one. */
- my_friendly_assert (TREE_CHAIN (parm_types) == NULL, 20000523);
+ gcc_assert (TREE_CHAIN (parm_types) == NULL);
}
else
write_type (parm);
/* <class-enum-type> ::= <name> */
-static void
+static void
write_class_enum_type (const tree type)
{
write_name (TYPE_NAME (type), /*ignore_local_scope=*/0);
static void
write_template_args (tree args)
{
+ int i;
+ int length = TREE_VEC_LENGTH (args);
+
MANGLE_TRACE_TREE ("template-args", args);
write_char ('I');
- if (TREE_CODE (args) == TREE_VEC)
- {
- int i;
- int length = TREE_VEC_LENGTH (args);
- my_friendly_assert (length > 0, 20000422);
+ gcc_assert (length > 0);
- if (TREE_CODE (TREE_VEC_ELT (args, 0)) == TREE_VEC)
- {
- /* We have nested template args. We want the innermost template
- argument list. */
- args = TREE_VEC_ELT (args, length - 1);
- length = TREE_VEC_LENGTH (args);
- }
- for (i = 0; i < length; ++i)
- write_template_arg (TREE_VEC_ELT (args, i));
- }
- else
+ if (TREE_CODE (TREE_VEC_ELT (args, 0)) == TREE_VEC)
{
- my_friendly_assert (TREE_CODE (args) == TREE_LIST, 20021014);
-
- while (args)
- {
- write_template_arg (TREE_VALUE (args));
- args = TREE_CHAIN (args);
- }
+ /* We have nested template args. We want the innermost template
+ argument list. */
+ args = TREE_VEC_ELT (args, length - 1);
+ length = TREE_VEC_LENGTH (args);
}
+ for (i = 0; i < length; ++i)
+ write_template_arg (TREE_VEC_ELT (args, i));
write_char ('E');
}
::= <expr-primary>
<expr-primary> ::= <template-param>
- ::= L <type> <value number> E # literal
- ::= L <mangled-name> E # external name
- ::= sr <type> <unqualified-name>
- ::= sr <type> <unqualified-name> <template-args> */
+ ::= L <type> <value number> E # literal
+ ::= L <mangled-name> E # external name
+ ::= sr <type> <unqualified-name>
+ ::= sr <type> <unqualified-name> <template-args> */
static void
write_expression (tree expr)
code = TREE_CODE (expr);
- /* Handle pointers-to-members by making them look like expression
- nodes. */
- if (code == PTRMEM_CST)
- {
- expr = build_nt (ADDR_EXPR,
- build_nt (SCOPE_REF,
- PTRMEM_CST_CLASS (expr),
- PTRMEM_CST_MEMBER (expr)));
- code = TREE_CODE (expr);
- }
-
/* Skip NOP_EXPRs. They can occur when (say) a pointer argument
is converted (via qualification conversions) to another
type. */
code = TREE_CODE (expr);
}
+ if (code == BASELINK)
+ {
+ expr = BASELINK_FUNCTIONS (expr);
+ code = TREE_CODE (expr);
+ }
+
+ /* Handle pointers-to-members by making them look like expression
+ nodes. */
+ if (code == PTRMEM_CST)
+ {
+ expr = build_nt (ADDR_EXPR,
+ build_qualified_name (/*type=*/NULL_TREE,
+ PTRMEM_CST_CLASS (expr),
+ PTRMEM_CST_MEMBER (expr),
+ /*template_p=*/false));
+ code = TREE_CODE (expr);
+ }
+
/* Handle template parameters. */
- if (code == TEMPLATE_TYPE_PARM
+ if (code == TEMPLATE_TYPE_PARM
|| code == TEMPLATE_TEMPLATE_PARM
|| code == BOUND_TEMPLATE_TEMPLATE_PARM
|| code == TEMPLATE_PARM_INDEX)
write_template_param (expr);
/* Handle literals. */
- else if (TREE_CODE_CLASS (code) == 'c'
+ else if (TREE_CODE_CLASS (code) == tcc_constant
|| (abi_version_at_least (2) && code == CONST_DECL))
write_template_arg_literal (expr);
else if (DECL_P (expr))
if (code == CONST_DECL)
G.need_abi_warning = 1;
write_char ('L');
- write_mangled_name (expr);
+ write_mangled_name (expr, false);
write_char ('E');
}
- else if (TREE_CODE (expr) == SIZEOF_EXPR
+ else if (TREE_CODE (expr) == SIZEOF_EXPR
&& TYPE_P (TREE_OPERAND (expr, 0)))
{
write_string ("st");
{
template_args = TREE_OPERAND (member, 1);
member = TREE_OPERAND (member, 0);
- if (TREE_CODE (member) == LOOKUP_EXPR)
- member = TREE_OPERAND (member, 0);
}
else
template_args = NULL_TREE;
else if (assignment_operator_name_info[i].identifier
== member)
{
- mangled_name
+ mangled_name
= assignment_operator_name_info[i].mangled_name;
break;
}
switch (code)
{
- case CALL_EXPR:
- sorry ("call_expr cannot be mangled due to a defect in the C++ ABI");
- break;
+ case CALL_EXPR:
+ sorry ("call_expr cannot be mangled due to a defect in the C++ ABI");
+ break;
case CAST_EXPR:
write_type (TREE_TYPE (expr));
- write_expression (TREE_VALUE (TREE_OPERAND (expr, 0)));
+ /* There is no way to mangle a zero-operand cast like
+ "T()". */
+ if (!TREE_OPERAND (expr, 0))
+ sorry ("zero-operand casts cannot be mangled due to a defect "
+ "in the C++ ABI");
+ else
+ write_expression (TREE_VALUE (TREE_OPERAND (expr, 0)));
break;
case STATIC_CAST_EXPR:
write_expression (TREE_OPERAND (expr, 0));
break;
-
+
/* Handle pointers-to-members specially. */
case SCOPE_REF:
write_type (TREE_OPERAND (expr, 0));
template_id = TREE_OPERAND (expr, 1);
name = TREE_OPERAND (template_id, 0);
/* FIXME: What about operators? */
- my_friendly_assert (TREE_CODE (name) == IDENTIFIER_NODE,
- 20030707);
+ gcc_assert (TREE_CODE (name) == IDENTIFIER_NODE);
write_source_name (TREE_OPERAND (template_id, 0));
write_template_args (TREE_OPERAND (template_id, 1));
}
break;
default:
- for (i = 0; i < TREE_CODE_LENGTH (code); ++i)
- write_expression (TREE_OPERAND (expr, i));
+ for (i = 0; i < TREE_OPERAND_LENGTH (expr); ++i)
+ {
+ tree operand = TREE_OPERAND (expr, i);
+ /* As a GNU extension, the middle operand of a
+ conditional may be omitted. Since expression
+ manglings are supposed to represent the input token
+ stream, there's no good way to mangle such an
+ expression without extending the C++ ABI. */
+ if (code == COND_EXPR && i == 1 && !operand)
+ {
+ error ("omitted middle operand to %<?:%> operand "
+ "cannot be mangled");
+ continue;
+ }
+ write_expression (operand);
+ }
}
}
}
-/* Literal subcase of non-terminal <template-arg>.
+/* Literal subcase of non-terminal <template-arg>.
"Literal arguments, e.g. "A<42L>", are encoded with their type
and value. Negative integer values are preceded with "n"; for
static void
write_template_arg_literal (const tree value)
{
- tree type = TREE_TYPE (value);
write_char ('L');
- write_type (type);
+ write_type (TREE_TYPE (value));
- if (TREE_CODE (value) == CONST_DECL)
- write_integer_cst (DECL_INITIAL (value));
- else if (TREE_CODE (value) == INTEGER_CST)
+ switch (TREE_CODE (value))
{
- if (same_type_p (type, boolean_type_node))
- {
- if (value == boolean_false_node || integer_zerop (value))
- write_unsigned_number (0);
- else if (value == boolean_true_node)
- write_unsigned_number (1);
- else
- abort ();
- }
- else
- write_integer_cst (value);
+ case CONST_DECL:
+ write_integer_cst (DECL_INITIAL (value));
+ break;
+
+ case INTEGER_CST:
+ gcc_assert (!same_type_p (TREE_TYPE (value), boolean_type_node)
+ || integer_zerop (value) || integer_onep (value));
+ write_integer_cst (value);
+ break;
+
+ case REAL_CST:
+ write_real_cst (value);
+ break;
+
+ default:
+ gcc_unreachable ();
}
- else if (TREE_CODE (value) == REAL_CST)
- write_real_cst (value);
- else
- abort ();
write_char ('E');
}
-/* Non-terminal <tempalate-arg>.
+/* Non-terminal <template-arg>.
- <template-arg> ::= <type> # type
- ::= L <type> </value/ number> E # literal
- ::= LZ <name> E # external name
- ::= X <expression> E # expression */
+ <template-arg> ::= <type> # type
+ ::= L <type> </value/ number> E # literal
+ ::= LZ <name> E # external name
+ ::= X <expression> E # expression */
static void
write_template_arg (tree node)
MANGLE_TRACE_TREE ("template-arg", node);
- /* A template template paramter's argument list contains TREE_LIST
- nodes of which the value field is the the actual argument. */
+ /* A template template parameter's argument list contains TREE_LIST
+ nodes of which the value field is the actual argument. */
if (code == TREE_LIST)
{
node = TREE_VALUE (node);
}
}
- if (TYPE_P (node))
+ if (TREE_CODE (node) == NOP_EXPR
+ && TREE_CODE (TREE_TYPE (node)) == REFERENCE_TYPE)
+ {
+ /* Template parameters can be of reference type. To maintain
+ internal consistency, such arguments use a conversion from
+ address of object to reference type. */
+ gcc_assert (TREE_CODE (TREE_OPERAND (node, 0)) == ADDR_EXPR);
+ if (abi_version_at_least (2))
+ node = TREE_OPERAND (TREE_OPERAND (node, 0), 0);
+ else
+ G.need_abi_warning = 1;
+ }
+
+ if (ARGUMENT_PACK_P (node))
+ {
+ /* Expand the template argument pack. */
+ tree args = ARGUMENT_PACK_ARGS (node);
+ int i, length = TREE_VEC_LENGTH (args);
+ for (i = 0; i < length; ++i)
+ write_template_arg (TREE_VEC_ELT (args, i));
+ }
+ else if (TYPE_P (node))
write_type (node);
else if (code == TEMPLATE_DECL)
/* A template appearing as a template arg is a template template arg. */
write_template_template_arg (node);
- else if ((TREE_CODE_CLASS (code) == 'c' && code != PTRMEM_CST)
+ else if ((TREE_CODE_CLASS (code) == tcc_constant && code != PTRMEM_CST)
|| (abi_version_at_least (2) && code == CONST_DECL))
write_template_arg_literal (node);
else if (DECL_P (node))
{
- /* G++ 3.2 incorrectly mangled non-type template arguments of
- enumeration type using their names. */
- if (code == CONST_DECL)
+ /* Until ABI version 2, non-type template arguments of
+ enumeration type were mangled using their names. */
+ if (code == CONST_DECL && !abi_version_at_least (2))
G.need_abi_warning = 1;
write_char ('L');
- write_char ('Z');
+ /* Until ABI version 3, the underscore before the mangled name
+ was incorrectly omitted. */
+ if (!abi_version_at_least (3))
+ {
+ G.need_abi_warning = 1;
+ write_char ('Z');
+ }
+ else
+ write_string ("_Z");
write_encoding (node);
write_char ('E');
}
}
-/* Non-terminal <array-type>. TYPE is an ARRAY_TYPE.
+/* Non-terminal <array-type>. TYPE is an ARRAY_TYPE.
- <array-type> ::= A [</dimension/ number>] _ </element/ type>
- ::= A <expression> _ </element/ type>
+ <array-type> ::= A [</dimension/ number>] _ </element/ type>
+ ::= A <expression> _ </element/ type>
"Array types encode the dimension (number of elements) and the
element type. For variable length arrays, the dimension (but not
write_unsigned_number (tree_low_cst (max, 1));
}
else
- write_expression (TREE_OPERAND (max, 0));
+ {
+ max = TREE_OPERAND (max, 0);
+ if (!abi_version_at_least (2))
+ {
+ /* value_dependent_expression_p presumes nothing is
+ dependent when PROCESSING_TEMPLATE_DECL is zero. */
+ ++processing_template_decl;
+ if (!value_dependent_expression_p (max))
+ G.need_abi_warning = 1;
+ --processing_template_decl;
+ }
+ write_expression (max);
+ }
+
}
write_char ('_');
write_type (TREE_TYPE (type));
break;
default:
- abort ();
+ gcc_unreachable ();
}
write_char ('T');
}
/* <template-template-param>
- ::= <template-param>
+ ::= <template-param>
::= <substitution> */
static void
only the template. */
if (TREE_CODE (parm) == BOUND_TEMPLATE_TEMPLATE_PARM)
{
- template
+ template
= TI_TEMPLATE (TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (parm));
if (find_substitution (template))
return;
add_substitution (template);
}
-/* Non-terminal <substitution>.
+/* Non-terminal <substitution>.
<substitution> ::= S <seq-id> _
- ::= S_ */
+ ::= S_ */
static void
write_substitution (const int seq_id)
/* Start mangling ENTITY. */
static inline void
-start_mangling (const tree entity)
+start_mangling (const tree entity, const bool ident_p)
{
G.entity = entity;
G.need_abi_warning = false;
- VARRAY_TREE_INIT (G.substitutions, 1, "mangling substitutions");
- obstack_free (&G.name_obstack, obstack_base (&G.name_obstack));
+ if (!ident_p)
+ {
+ obstack_free (&name_obstack, name_base);
+ mangle_obstack = &name_obstack;
+ name_base = obstack_alloc (&name_obstack, 0);
+ }
+ else
+ mangle_obstack = &ident_hash->stack;
}
/* Done with mangling. Return the generated mangled name. If WARN is
finish_mangling (const bool warn)
{
if (warn_abi && warn && G.need_abi_warning)
- warning ("the mangled name of `%D' will change in a future "
+ warning (OPT_Wabi, "the mangled name of %qD will change in a future "
"version of GCC",
G.entity);
/* Clear all the substitutions. */
- G.substitutions = 0;
+ VEC_truncate (tree, G.substitutions, 0);
/* Null-terminate the string. */
write_char ('\0');
- return (const char *) obstack_base (&G.name_obstack);
+ return (const char *) obstack_finish (mangle_obstack);
}
/* Initialize data structures for mangling. */
void
-init_mangle ()
+init_mangle (void)
{
- gcc_obstack_init (&G.name_obstack);
+ gcc_obstack_init (&name_obstack);
+ name_base = obstack_alloc (&name_obstack, 0);
+ G.substitutions = NULL;
/* Cache these identifiers for quick comparison when checking for
standard substitutions. */
{
const char *result;
- start_mangling (decl);
+ start_mangling (decl, /*ident_p=*/true);
if (TREE_CODE (decl) == TYPE_DECL)
write_type (TREE_TYPE (decl));
- else if (/* The names of `extern "C"' functions are not mangled. */
- (DECL_EXTERN_C_FUNCTION_P (decl)
- /* But overloaded operator names *are* mangled. */
- && !DECL_OVERLOADED_OPERATOR_P (decl))
- /* The names of global variables aren't mangled either. */
- || (TREE_CODE (decl) == VAR_DECL
- && CP_DECL_CONTEXT (decl) == global_namespace)
- /* And neither are `extern "C"' variables. */
- || (TREE_CODE (decl) == VAR_DECL
- && DECL_EXTERN_C_P (decl)))
- write_string (IDENTIFIER_POINTER (DECL_NAME (decl)));
else
- {
- write_mangled_name (decl);
- if (DECL_LANG_SPECIFIC (decl)
- && (DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (decl)
- || DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (decl)))
- /* We need a distinct mangled name for these entities, but
- we should never actually output it. So, we append some
- characters the assembler won't like. */
- write_string (" *INTERNAL* ");
- }
+ write_mangled_name (decl, true);
result = finish_mangling (/*warn=*/true);
if (DEBUG_MANGLE)
return result;
}
+/* Like get_identifier, except that NAME is assumed to have been
+ allocated on the obstack used by the identifier hash table. */
+
+static inline tree
+get_identifier_nocopy (const char *name)
+{
+ hashnode ht_node = ht_lookup (ident_hash, (const unsigned char *) name,
+ strlen (name), HT_ALLOCED);
+ return HT_IDENT_TO_GCC_IDENT (ht_node);
+}
+
/* Create an identifier for the external mangled name of DECL. */
void
mangle_decl (const tree decl)
{
- tree id = get_identifier (mangle_decl_string (decl));
-
+ tree id = get_identifier_nocopy (mangle_decl_string (decl));
+ id = targetm.mangle_decl_assembler_name (decl, id);
SET_DECL_ASSEMBLER_NAME (decl, id);
}
{
const char *result;
- start_mangling (type);
+ start_mangling (type, /*ident_p=*/false);
write_type (type);
result = finish_mangling (/*warn=*/false);
if (DEBUG_MANGLE)
return result;
}
-/* Create an identifier for the mangled representation of TYPE. */
-
-tree
-mangle_type (const tree type)
-{
- return get_identifier (mangle_type_string (type));
-}
-
/* Create an identifier for the mangled name of a special component
for belonging to TYPE. CODE is the ABI-specified code for this
component. */
/* We don't have an actual decl here for the special component, so
we can't just process the <encoded-name>. Instead, fake it. */
- start_mangling (type);
+ start_mangling (type, /*ident_p=*/true);
/* Start the mangling. */
write_string ("_Z");
if (DEBUG_MANGLE)
fprintf (stderr, "mangle_special_for_type = %s\n\n", result);
- return get_identifier (result);
+ return get_identifier_nocopy (result);
}
/* Create an identifier for the mangled representation of the typeinfo
/* Return an identifier for a construction vtable group. TYPE is
the most derived class in the hierarchy; BINFO is the base
- subobject for which this construction vtable group will be used.
+ subobject for which this construction vtable group will be used.
This mangling isn't part of the ABI specification; in the ABI
specification, the vtable group is dumped in the same COMDAT as the
main vtable, and is referenced only from that vtable, so it doesn't
need an external name. For binary formats without COMDAT sections,
- though, we need external names for the vtable groups.
+ though, we need external names for the vtable groups.
We use the production
{
const char *result;
- start_mangling (type);
+ start_mangling (type, /*ident_p=*/true);
write_string ("_Z");
write_string ("TC");
result = finish_mangling (/*warn=*/false);
if (DEBUG_MANGLE)
fprintf (stderr, "mangle_ctor_vtbl_for_type = %s\n\n", result);
- return get_identifier (result);
+ return get_identifier_nocopy (result);
}
/* Mangle a this pointer or result pointer adjustment.
-
+
<call-offset> ::= h <fixed offset number> _
::= v <fixed offset number> _ <virtual offset number> _ */
-
+
static void
mangle_call_offset (const tree fixed_offset, const tree virtual_offset)
{
for the this pointer, even if there is none.
<special-name> ::= T <call-offset> <base encoding>
- ::= Tc <this_adjust call-offset> <result_adjust call-offset>
- <base encoding>
-*/
+ ::= Tc <this_adjust call-offset> <result_adjust call-offset>
+ <base encoding> */
tree
mangle_thunk (tree fn_decl, const int this_adjusting, tree fixed_offset,
tree virtual_offset)
{
const char *result;
-
- start_mangling (fn_decl);
+
+ start_mangling (fn_decl, /*ident_p=*/true);
write_string ("_Z");
write_char ('T');
-
+
if (!this_adjusting)
{
/* Covariant thunk with no this adjustment */
result = finish_mangling (/*warn=*/false);
if (DEBUG_MANGLE)
fprintf (stderr, "mangle_thunk = %s\n\n", result);
- return get_identifier (result);
+ return get_identifier_nocopy (result);
}
/* This hash table maps TYPEs to the IDENTIFIER for a conversion
- operator to TYPE. The nodes are TREE_LISTs whose TREE_PURPOSE is
- the TYPE and whose TREE_VALUE is the IDENTIFIER. */
+ operator to TYPE. The nodes are IDENTIFIERs whose TREE_TYPE is the
+ TYPE. */
static GTY ((param_is (union tree_node))) htab_t conv_type_names;
static hashval_t
hash_type (const void *val)
{
- return htab_hash_pointer (TREE_PURPOSE ((tree) val));
+ return (hashval_t) TYPE_UID (TREE_TYPE ((const_tree) val));
}
/* Compare VAL1 (a node in the table) with VAL2 (a TYPE). */
static int
compare_type (const void *val1, const void *val2)
{
- return TREE_PURPOSE ((tree) val1) == (tree) val2;
+ return TREE_TYPE ((const_tree) val1) == (const_tree) val2;
}
/* Return an identifier for the mangled unqualified name for a
{
void **slot;
tree identifier;
- char buffer[64];
- if (conv_type_names == NULL)
+ if (type == error_mark_node)
+ return error_mark_node;
+
+ if (conv_type_names == NULL)
conv_type_names = htab_create_ggc (31, &hash_type, &compare_type, NULL);
- slot = htab_find_slot_with_hash (conv_type_names, type,
- htab_hash_pointer (type), INSERT);
- if (*slot)
- return TREE_VALUE ((tree) *slot);
-
- /* Create a unique name corresponding to TYPE. */
- sprintf (buffer, "operator %lu",
- (unsigned long) htab_elements (conv_type_names));
- identifier = get_identifier (buffer);
- *slot = build_tree_list (type, identifier);
-
- /* Set bits on the identifier so we know later it's a conversion. */
- IDENTIFIER_OPNAME_P (identifier) = 1;
- IDENTIFIER_TYPENAME_P (identifier) = 1;
- /* Hang TYPE off the identifier so it can be found easily later when
- performing conversions. */
- TREE_TYPE (identifier) = type;
+ slot = htab_find_slot_with_hash (conv_type_names, type,
+ (hashval_t) TYPE_UID (type), INSERT);
+ identifier = (tree)*slot;
+ if (!identifier)
+ {
+ char buffer[64];
+
+ /* Create a unique name corresponding to TYPE. */
+ sprintf (buffer, "operator %lu",
+ (unsigned long) htab_elements (conv_type_names));
+ identifier = get_identifier (buffer);
+ *slot = identifier;
+
+ /* Hang TYPE off the identifier so it can be found easily later
+ when performing conversions. */
+ TREE_TYPE (identifier) = type;
+
+ /* Set bits on the identifier so we know later it's a conversion. */
+ IDENTIFIER_OPNAME_P (identifier) = 1;
+ IDENTIFIER_TYPENAME_P (identifier) = 1;
+ }
return identifier;
}
tree
mangle_guard_variable (const tree variable)
{
- start_mangling (variable);
+ start_mangling (variable, /*ident_p=*/true);
write_string ("_ZGV");
if (strncmp (IDENTIFIER_POINTER (DECL_NAME (variable)), "_ZGR", 4) == 0)
/* The name of a guard variable for a reference temporary should refer
write_string (IDENTIFIER_POINTER (DECL_NAME (variable)) + 4);
else
write_name (variable, /*ignore_local_scope=*/0);
- return get_identifier (finish_mangling (/*warn=*/false));
+ return get_identifier_nocopy (finish_mangling (/*warn=*/false));
}
/* Return an identifier for the name of a temporary variable used to
tree
mangle_ref_init_variable (const tree variable)
{
- start_mangling (variable);
+ start_mangling (variable, /*ident_p=*/true);
write_string ("_ZGR");
write_name (variable, /*ignore_local_scope=*/0);
- return get_identifier (finish_mangling (/*warn=*/false));
+ return get_identifier_nocopy (finish_mangling (/*warn=*/false));
}
\f
else if (type == java_boolean_type_node)
write_char ('b');
else
- abort ();
+ gcc_unreachable ();
}
#include "gt-cp-mangle.h"
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