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-rw-r--r--libiberty/cp-demangle.c71
1 files changed, 63 insertions, 8 deletions
diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c
index 0b4e05c..e6d3d5e 100644
--- a/libiberty/cp-demangle.c
+++ b/libiberty/cp-demangle.c
@@ -964,6 +964,22 @@ d_make_template_param (struct d_info *di, long i)
return p;
}
+/* Add a new function parameter. */
+
+static struct demangle_component *
+d_make_function_param (struct d_info *di, long i)
+{
+ struct demangle_component *p;
+
+ p = d_make_empty (di);
+ if (p != NULL)
+ {
+ p->type = DEMANGLE_COMPONENT_FUNCTION_PARAM;
+ p->u.s_number.number = i;
+ }
+ return p;
+}
+
/* Add a new standard substitution component. */
static struct demangle_component *
@@ -989,7 +1005,11 @@ CP_STATIC_IF_GLIBCPP_V3
struct demangle_component *
cplus_demangle_mangled_name (struct d_info *di, int top_level)
{
- if (! d_check_char (di, '_'))
+ if (! d_check_char (di, '_')
+ /* Allow missing _ if not at toplevel to work around a
+ bug in G++ abi-version=2 mangling; see the comment in
+ write_template_arg. */
+ && top_level)
return NULL;
if (! d_check_char (di, 'Z'))
return NULL;
@@ -1481,6 +1501,8 @@ const struct demangle_operator_info cplus_demangle_operators[] =
{ "rs", NL (">>"), 2 },
{ "st", NL ("sizeof "), 1 },
{ "sz", NL ("sizeof "), 1 },
+ { "at", NL ("alignof "), 1 },
+ { "az", NL ("alignof "), 1 },
{ NULL, NULL, 0, 0 }
};
@@ -2564,12 +2586,25 @@ d_expression (struct d_info *di)
d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
d_template_args (di)));
}
- else if (peek == 's'
- && (d_peek_next_char (di) == 'T' || d_peek_next_char (di) == 'R'))
+ else if (peek == 'f' && d_peek_next_char (di) == 'p')
{
- /* Just demangle a parameter placeholder as its type. */
+ /* Function parameter used in a late-specified return type. */
+ int index;
d_advance (di, 2);
- return cplus_demangle_type (di);
+ if (d_peek_char (di) == '_')
+ index = 1;
+ else
+ {
+ index = d_number (di);
+ if (index < 0)
+ return NULL;
+ index += 2;
+ }
+
+ if (! d_check_char (di, '_'))
+ return NULL;
+
+ return d_make_function_param (di, index);
}
else if (IS_DIGIT (peek))
{
@@ -2619,8 +2654,16 @@ d_expression (struct d_info *di)
switch (args)
{
case 1:
- return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
- d_expression (di));
+ {
+ struct demangle_component *operand;
+ if (op->type == DEMANGLE_COMPONENT_CAST
+ && d_check_char (di, '_'))
+ operand = d_exprlist (di);
+ else
+ operand = d_expression (di);
+ return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
+ operand);
+ }
case 2:
{
struct demangle_component *left;
@@ -2671,7 +2714,9 @@ d_expr_primary (struct d_info *di)
if (! d_check_char (di, 'L'))
return NULL;
- if (d_peek_char (di) == '_')
+ if (d_peek_char (di) == '_'
+ /* Workaround for G++ bug; see comment in write_template_arg. */
+ || d_peek_char (di) == 'Z')
ret = cplus_demangle_mangled_name (di, 0);
else
{
@@ -3293,6 +3338,7 @@ d_print_comp (struct d_print_info *dpi,
the right place for the type. We also have to pass down
any CV-qualifiers, which apply to the this parameter. */
hold_modifiers = dpi->modifiers;
+ dpi->modifiers = 0;
i = 0;
typed_name = d_left (dc);
while (typed_name != NULL)
@@ -3981,6 +4027,15 @@ d_print_comp (struct d_print_info *dpi,
}
return;
+ case DEMANGLE_COMPONENT_FUNCTION_PARAM:
+ {
+ char buf[25];
+ d_append_string (dpi, "parm#");
+ sprintf(buf,"%ld", dc->u.s_number.number);
+ d_append_string (dpi, buf);
+ return;
+ }
+
default:
d_print_error (dpi);
return;