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binutils/binutils-demangler-updates.patch

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--- binutils.orig/include/demangle.h 2024-01-17 09:54:10.945686323 +0000
+++ binutils-2.41/include/demangle.h 2024-01-17 09:54:55.696760281 +0000
@@ -1,5 +1,5 @@
/* Defs for interface to demanglers.
- Copyright (C) 1992-2023 Free Software Foundation, Inc.
+ Copyright (C) 1992-2024 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License
@@ -448,6 +448,8 @@ enum demangle_component_type
DEMANGLE_COMPONENT_TRANSACTION_SAFE,
/* A cloned function. */
DEMANGLE_COMPONENT_CLONE,
+ /* A member-like friend function. */
+ DEMANGLE_COMPONENT_FRIEND,
DEMANGLE_COMPONENT_NOEXCEPT,
DEMANGLE_COMPONENT_THROW_SPEC,
@@ -464,6 +466,8 @@ enum demangle_component_type
DEMANGLE_COMPONENT_TEMPLATE_TEMPLATE_PARM,
DEMANGLE_COMPONENT_TEMPLATE_PACK_PARM,
+ DEMANGLE_COMPONENT_CONSTRAINTS,
+
/* A builtin type with argument. This holds the builtin type
information. */
DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE
diff -rup binutils.orig/libiberty/cp-demangle.c binutils-2.41/libiberty/cp-demangle.c
--- binutils.orig/libiberty/cp-demangle.c 2024-01-17 09:54:11.323686947 +0000
+++ binutils-2.41/libiberty/cp-demangle.c 2024-01-17 09:54:42.468738420 +0000
@@ -1,5 +1,5 @@
/* Demangler for g++ V3 ABI.
- Copyright (C) 2003-2023 Free Software Foundation, Inc.
+ Copyright (C) 2003-2024 Free Software Foundation, Inc.
Written by Ian Lance Taylor <ian@wasabisystems.com>.
This file is part of the libiberty library, which is part of GCC.
@@ -993,6 +993,7 @@ d_make_comp (struct d_info *di, enum dem
case DEMANGLE_COMPONENT_VECTOR_TYPE:
case DEMANGLE_COMPONENT_CLONE:
case DEMANGLE_COMPONENT_MODULE_ENTITY:
+ case DEMANGLE_COMPONENT_CONSTRAINTS:
if (left == NULL || right == NULL)
return NULL;
break;
@@ -1036,6 +1037,7 @@ d_make_comp (struct d_info *di, enum dem
case DEMANGLE_COMPONENT_TEMPLATE_NON_TYPE_PARM:
case DEMANGLE_COMPONENT_TEMPLATE_TEMPLATE_PARM:
case DEMANGLE_COMPONENT_TEMPLATE_PACK_PARM:
+ case DEMANGLE_COMPONENT_FRIEND:
if (left == NULL)
return NULL;
break;
@@ -1344,6 +1346,22 @@ is_ctor_dtor_or_conversion (struct deman
}
}
+/* [ Q <constraint-expression> ] */
+
+static struct demangle_component *
+d_maybe_constraints (struct d_info *di, struct demangle_component *dc)
+{
+ if (d_peek_char (di) == 'Q')
+ {
+ d_advance (di, 1);
+ struct demangle_component *expr = d_expression (di);
+ if (expr == NULL)
+ return NULL;
+ dc = d_make_comp (di, DEMANGLE_COMPONENT_CONSTRAINTS, dc, expr);
+ }
+ return dc;
+}
+
/* <encoding> ::= <(function) name> <bare-function-type>
::= <(data) name>
::= <special-name>
@@ -1397,21 +1415,21 @@ d_encoding (struct d_info *di, int top_l
struct demangle_component *ftype;
ftype = d_bare_function_type (di, has_return_type (dc));
- if (ftype)
- {
- /* If this is a non-top-level local-name, clear the
- return type, so it doesn't confuse the user by
- being confused with the return type of whaever
- this is nested within. */
- if (!top_level && dc->type == DEMANGLE_COMPONENT_LOCAL_NAME
- && ftype->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
- d_left (ftype) = NULL;
+ if (!ftype)
+ return NULL;
- dc = d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME,
- dc, ftype);
- }
- else
- dc = NULL;
+ /* If this is a non-top-level local-name, clear the
+ return type, so it doesn't confuse the user by
+ being confused with the return type of whaever
+ this is nested within. */
+ if (!top_level && dc->type == DEMANGLE_COMPONENT_LOCAL_NAME
+ && ftype->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
+ d_left (ftype) = NULL;
+
+ ftype = d_maybe_constraints (di, ftype);
+
+ dc = d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME,
+ dc, ftype);
}
}
}
@@ -1681,6 +1699,7 @@ d_maybe_module_name (struct d_info *di,
/* <unqualified-name> ::= [<module-name>] <operator-name> [<abi-tags>]
::= [<module-name>] <ctor-dtor-name> [<abi-tags>]
::= [<module-name>] <source-name> [<abi-tags>]
+ ::= [<module-name>] F <source-name> [<abi-tags>]
::= [<module-name>] <local-source-name> [<abi-tags>]
::= [<module-name>] DC <source-name>+ E [<abi-tags>]
<local-source-name> ::= L <source-name> <discriminator> [<abi-tags>]
@@ -1692,11 +1711,18 @@ d_unqualified_name (struct d_info *di, s
{
struct demangle_component *ret;
char peek;
+ int member_like_friend = 0;
if (!d_maybe_module_name (di, &module))
return NULL;
peek = d_peek_char (di);
+ if (peek == 'F')
+ {
+ member_like_friend = 1;
+ d_advance (di, 1);
+ peek = d_peek_char (di);
+ }
if (IS_DIGIT (peek))
ret = d_source_name (di);
else if (IS_LOWER (peek))
@@ -1773,6 +1799,8 @@ d_unqualified_name (struct d_info *di, s
ret = d_make_comp (di, DEMANGLE_COMPONENT_MODULE_ENTITY, ret, module);
if (d_peek_char (di) == 'B')
ret = d_abi_tags (di, ret);
+ if (member_like_friend)
+ ret = d_make_comp (di, DEMANGLE_COMPONENT_FRIEND, ret, NULL);
if (scope)
ret = d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, scope, ret);
@@ -3012,7 +3040,7 @@ d_parmlist (struct d_info *di)
struct demangle_component *type;
char peek = d_peek_char (di);
- if (peek == '\0' || peek == 'E' || peek == '.')
+ if (peek == '\0' || peek == 'E' || peek == '.' || peek == 'Q')
break;
if ((peek == 'R' || peek == 'O')
&& d_peek_next_char (di) == 'E')
@@ -3248,7 +3276,7 @@ d_template_args (struct d_info *di)
return d_template_args_1 (di);
}
-/* <template-arg>* E */
+/* <template-arg>* [Q <constraint-expression>] E */
static struct demangle_component *
d_template_args_1 (struct d_info *di)
@@ -3284,13 +3312,17 @@ d_template_args_1 (struct d_info *di)
return NULL;
pal = &d_right (*pal);
- if (d_peek_char (di) == 'E')
- {
- d_advance (di, 1);
- break;
- }
+ char peek = d_peek_char (di);
+ if (peek == 'E' || peek == 'Q')
+ break;
}
+ al = d_maybe_constraints (di, al);
+
+ if (d_peek_char (di) != 'E')
+ return NULL;
+ d_advance (di, 1);
+
di->last_name = hold_last_name;
return al;
@@ -4431,6 +4463,7 @@ d_count_templates_scopes (struct d_print
case DEMANGLE_COMPONENT_PACK_EXPANSION:
case DEMANGLE_COMPONENT_TAGGED_NAME:
case DEMANGLE_COMPONENT_CLONE:
+ case DEMANGLE_COMPONENT_CONSTRAINTS:
recurse_left_right:
/* PR 89394 - Check for too much recursion. */
if (dpi->recursion > DEMANGLE_RECURSION_LIMIT)
@@ -4459,6 +4492,7 @@ d_count_templates_scopes (struct d_print
case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
case DEMANGLE_COMPONENT_MODULE_ENTITY:
+ case DEMANGLE_COMPONENT_FRIEND:
d_count_templates_scopes (dpi, d_left (dc));
break;
@@ -5189,6 +5223,22 @@ d_print_comp_inner (struct d_print_info
dpt.next = dpi->templates;
dpi->templates = &dpt;
dpt.template_decl = typed_name;
+
+ /* Constraints are mangled as part of the template argument list,
+ so they wrap the _TEMPLATE_ARGLIST. But
+ d_lookup_template_argument expects the RHS of _TEMPLATE to be
+ the _ARGLIST, and constraints need to refer to these args. So
+ move the _CONSTRAINTS out of the _TEMPLATE and onto the type.
+ This will result in them being printed after the () like a
+ trailing requires-clause, but that seems like our best option
+ given that we aren't printing a template-head. */
+ struct demangle_component *tnr = d_right (typed_name);
+ if (tnr->type == DEMANGLE_COMPONENT_CONSTRAINTS)
+ {
+ d_right (typed_name) = d_left (tnr);
+ d_left (tnr) = d_right (dc);
+ d_right (dc) = tnr;
+ }
}
d_print_comp (dpi, options, d_right (dc));
@@ -6197,6 +6247,11 @@ d_print_comp_inner (struct d_print_info
d_append_char (dpi, ']');
return;
+ case DEMANGLE_COMPONENT_FRIEND:
+ d_print_comp (dpi, options, d_left (dc));
+ d_append_string (dpi, "[friend]");
+ return;
+
case DEMANGLE_COMPONENT_TEMPLATE_HEAD:
{
d_append_char (dpi, '<');
@@ -6231,6 +6286,12 @@ d_print_comp_inner (struct d_print_info
d_append_string (dpi, "...");
return;
+ case DEMANGLE_COMPONENT_CONSTRAINTS:
+ d_print_comp (dpi, options, d_left (dc));
+ d_append_string (dpi, " requires ");
+ d_print_comp (dpi, options, d_right (dc));
+ return;
+
default:
d_print_error (dpi);
return;
--- binutils.orig/include/demangle.h 2024-01-17 11:06:11.111229985 +0000
+++ binutils-2.41/include/demangle.h 2024-01-17 11:06:21.281242709 +0000
@@ -314,6 +314,8 @@ enum demangle_component_type
/* C++11: An rvalue reference modifying a member function. The one
subtree is the type which is being referenced. */
DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS,
+ /* C++23: A member function with explict object parameter. */
+ DEMANGLE_COMPONENT_XOBJ_MEMBER_FUNCTION,
/* A vendor qualifier. The left subtree is the type which is being
qualified, and the right subtree is the name of the
qualifier. */
--- binutils.orig/libiberty/cp-demangle.c 2024-01-17 11:06:11.246230153 +0000
+++ binutils-2.41/libiberty/cp-demangle.c 2024-01-17 11:06:21.282242710 +0000
@@ -581,6 +581,7 @@ static char *d_demangle (const char *, i
case DEMANGLE_COMPONENT_CONST_THIS: \
case DEMANGLE_COMPONENT_REFERENCE_THIS: \
case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS: \
+ case DEMANGLE_COMPONENT_XOBJ_MEMBER_FUNCTION: \
case DEMANGLE_COMPONENT_TRANSACTION_SAFE: \
case DEMANGLE_COMPONENT_NOEXCEPT: \
case DEMANGLE_COMPONENT_THROW_SPEC
@@ -749,6 +750,9 @@ d_dump (struct demangle_component *dc, i
case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
printf ("rvalue reference this\n");
break;
+ case DEMANGLE_COMPONENT_XOBJ_MEMBER_FUNCTION:
+ printf ("explicit object parameter\n");
+ break;
case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
printf ("transaction_safe this\n");
break;
@@ -1547,6 +1551,8 @@ d_name (struct d_info *di, int substable
/* <nested-name> ::= N [<CV-qualifiers>] [<ref-qualifier>] <prefix> <unqualified-name> E
::= N [<CV-qualifiers>] [<ref-qualifier>] <template-prefix> <template-args> E
+ ::= N H <prefix> <unqualified-name> E
+ ::= N H <template-prefix> <template-args> E
*/
static struct demangle_component *
@@ -1559,13 +1565,24 @@ d_nested_name (struct d_info *di)
if (! d_check_char (di, 'N'))
return NULL;
- pret = d_cv_qualifiers (di, &ret, 1);
- if (pret == NULL)
- return NULL;
+ if (d_peek_char (di) == 'H')
+ {
+ d_advance (di, 1);
+ di->expansion += sizeof "this";
+ pret = &ret;
+ rqual = d_make_comp (di, DEMANGLE_COMPONENT_XOBJ_MEMBER_FUNCTION,
+ NULL, NULL);
+ }
+ else
+ {
+ pret = d_cv_qualifiers (di, &ret, 1);
+ if (pret == NULL)
+ return NULL;
- /* Parse the ref-qualifier now and then attach it
- once we have something to attach it to. */
- rqual = d_ref_qualifier (di, NULL);
+ /* Parse the ref-qualifier now and then attach it
+ once we have something to attach it to. */
+ rqual = d_ref_qualifier (di, NULL);
+ }
*pret = d_prefix (di, 1);
if (*pret == NULL)
@@ -4427,6 +4444,7 @@ d_count_templates_scopes (struct d_print
case DEMANGLE_COMPONENT_CONST_THIS:
case DEMANGLE_COMPONENT_REFERENCE_THIS:
case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
+ case DEMANGLE_COMPONENT_XOBJ_MEMBER_FUNCTION:
case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
case DEMANGLE_COMPONENT_NOEXCEPT:
case DEMANGLE_COMPONENT_THROW_SPEC:
@@ -6521,6 +6539,8 @@ d_print_mod (struct d_print_info *dpi, i
case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
d_append_string (dpi, "&&");
return;
+ case DEMANGLE_COMPONENT_XOBJ_MEMBER_FUNCTION:
+ return;
case DEMANGLE_COMPONENT_COMPLEX:
d_append_string (dpi, " _Complex");
return;
@@ -6559,11 +6579,13 @@ d_print_function_type (struct d_print_in
{
int need_paren;
int need_space;
+ int xobj_memfn;
struct d_print_mod *p;
struct d_print_mod *hold_modifiers;
need_paren = 0;
need_space = 0;
+ xobj_memfn = 0;
for (p = mods; p != NULL; p = p->next)
{
if (p->printed)
@@ -6586,7 +6608,8 @@ d_print_function_type (struct d_print_in
need_space = 1;
need_paren = 1;
break;
- FNQUAL_COMPONENT_CASE:
+ case DEMANGLE_COMPONENT_XOBJ_MEMBER_FUNCTION:
+ xobj_memfn = 1;
break;
default:
break;
@@ -6617,6 +6640,8 @@ d_print_function_type (struct d_print_in
d_append_char (dpi, ')');
d_append_char (dpi, '(');
+ if (xobj_memfn)
+ d_append_string (dpi, "this ");
if (d_right (dc) != NULL)
d_print_comp (dpi, options, d_right (dc));
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