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-rw-r--r--libcpp/ChangeLog17
-rw-r--r--libcpp/Makefile.in4
-rw-r--r--libcpp/charset.c7
-rwxr-xr-xlibcpp/configure6
-rw-r--r--libcpp/configure.ac5
-rw-r--r--libcpp/include/cpplib.h6
-rw-r--r--libcpp/init.c52
-rw-r--r--libcpp/lex.c2
-rw-r--r--libcpp/macro.c72
9 files changed, 104 insertions, 67 deletions
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index 8d43655..1c04bf2 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,20 @@
+2021-11-30 Richard Biener <rguenther@suse.de>
+
+ * charset.c (convert_escape): Remove unreachable break.
+
+2021-11-30 Jakub Jelinek <jakub@redhat.com>
+
+ PR c++/100977
+ * init.c (lang_defaults): Enable cxx23_identifiers for
+ -std={gnu,c}++{11,14,17,20} too.
+
+2021-11-29 Eric Gallager <egallager@gcc.gnu.org>
+
+ PR other/103021
+ * Makefile.in: Use ETAGS variable in TAGS target.
+ * configure: Regenerate.
+ * configure.ac: Allow ETAGS variable to be overridden.
+
2021-11-23 Christophe Lyon <christophe.lyon@foss.st.com>
PR preprocessor/103355
diff --git a/libcpp/Makefile.in b/libcpp/Makefile.in
index 34e4206..6b6554b 100644
--- a/libcpp/Makefile.in
+++ b/libcpp/Makefile.in
@@ -264,11 +264,13 @@ po/$(PACKAGE).pot: $(libcpp_a_SOURCES)
sed 's:$(srcdir)/::g' <po/$(PACKAGE).pot.tmp >po/$(PACKAGE).pot
rm po/$(PACKAGE).pot.tmp
+ETAGS = @ETAGS@
+
TAGS_SOURCES = $(libcpp_a_SOURCES) internal.h system.h ucnid.h \
include/cpplib.h include/line-map.h include/mkdeps.h include/symtab.h
TAGS: $(TAGS_SOURCES)
- cd $(srcdir) && etags $(TAGS_SOURCES)
+ cd $(srcdir) && $(ETAGS) $(TAGS_SOURCES)
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
diff --git a/libcpp/charset.c b/libcpp/charset.c
index 0b0ccc6..0854677 100644
--- a/libcpp/charset.c
+++ b/libcpp/charset.c
@@ -955,14 +955,12 @@ ucn_valid_in_identifier (cpp_reader *pfile, cppchar_t c,
valid_flags = C99 | CXX | C11 | CXX23;
if (CPP_PEDANTIC (pfile))
{
- if (CPP_OPTION (pfile, cxx23_identifiers))
+ if (CPP_OPTION (pfile, cplusplus))
valid_flags = CXX23;
else if (CPP_OPTION (pfile, c11_identifiers))
valid_flags = C11;
else if (CPP_OPTION (pfile, c99))
valid_flags = C99;
- else if (CPP_OPTION (pfile, cplusplus))
- valid_flags = CXX;
}
if (! (ucnranges[mn].flags & valid_flags))
return 0;
@@ -1021,7 +1019,7 @@ ucn_valid_in_identifier (cpp_reader *pfile, cppchar_t c,
return 2;
}
- if (CPP_OPTION (pfile, cxx23_identifiers))
+ if (CPP_OPTION (pfile, cplusplus))
invalid_start_flags = NXX23;
else if (CPP_OPTION (pfile, c11_identifiers))
invalid_start_flags = N11;
@@ -1534,7 +1532,6 @@ convert_escape (cpp_reader *pfile, const uchar *from, const uchar *limit,
case 'x':
return convert_hex (pfile, from, limit, tbuf, cvt,
char_range, loc_reader, ranges);
- break;
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
diff --git a/libcpp/configure b/libcpp/configure
index 9674cd9..2797292 100755
--- a/libcpp/configure
+++ b/libcpp/configure
@@ -652,6 +652,7 @@ noexception_flags
WARN_PEDANTIC
c_warn
warn
+ETAGS
AUTOHEADER
AUTOCONF
ACLOCAL
@@ -4896,6 +4897,11 @@ done
test -n "$AUTOHEADER" || AUTOHEADER="$MISSING autoheader"
+if test -z "$ETAGS"; then
+ ETAGS=etags
+fi
+
+
# Figure out what compiler warnings we can enable.
# See config/warnings.m4 for details.
diff --git a/libcpp/configure.ac b/libcpp/configure.ac
index 1efa96f..bc2373c 100644
--- a/libcpp/configure.ac
+++ b/libcpp/configure.ac
@@ -22,6 +22,11 @@ AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal])
AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf])
AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
+if test -z "$ETAGS"; then
+ ETAGS=etags
+fi
+AC_SUBST([ETAGS])
+
# Figure out what compiler warnings we can enable.
# See config/warnings.m4 for details.
diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h
index 112b9c2..08c72e7 100644
--- a/libcpp/include/cpplib.h
+++ b/libcpp/include/cpplib.h
@@ -491,13 +491,9 @@ struct cpp_options
unsigned char ext_numeric_literals;
/* Nonzero means extended identifiers allow the characters specified
- in C11 and C++11. */
+ in C11. */
unsigned char c11_identifiers;
- /* Nonzero means extended identifiers allow the characters specified
- in C++23. */
- unsigned char cxx23_identifiers;
-
/* Nonzero for C++ 2014 Standard binary constants. */
unsigned char binary_constants;
diff --git a/libcpp/init.c b/libcpp/init.c
index f9a8f5f..198afd07 100644
--- a/libcpp/init.c
+++ b/libcpp/init.c
@@ -82,7 +82,6 @@ struct lang_flags
char extended_numbers;
char extended_identifiers;
char c11_identifiers;
- char cxx23_identifiers;
char std;
char digraphs;
char uliterals;
@@ -100,31 +99,31 @@ struct lang_flags
};
static const struct lang_flags lang_defaults[] =
-{ /* c99 c++ xnum xid c11 c++23 std digr ulit rlit udlit bincst digsep trig u8chlit vaopt scope dfp szlit elifdef */
- /* GNUC89 */ { 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
- /* GNUC99 */ { 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
- /* GNUC11 */ { 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
- /* GNUC17 */ { 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
- /* GNUC2X */ { 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1 },
- /* STDC89 */ { 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
- /* STDC94 */ { 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
- /* STDC99 */ { 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
- /* STDC11 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
- /* STDC17 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
- /* STDC2X */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1 },
- /* GNUCXX */ { 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
- /* CXX98 */ { 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0 },
- /* GNUCXX11 */ { 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
- /* CXX11 */ { 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0 },
- /* GNUCXX14 */ { 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0 },
- /* CXX14 */ { 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 },
- /* GNUCXX17 */ { 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0 },
- /* CXX17 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0 },
- /* GNUCXX20 */ { 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0 },
- /* CXX20 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0 },
- /* GNUCXX23 */ { 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1 },
- /* CXX23 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1 },
- /* ASM */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+{ /* c99 c++ xnum xid c11 std digr ulit rlit udlit bincst digsep trig u8chlit vaopt scope dfp szlit elifdef */
+ /* GNUC89 */ { 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
+ /* GNUC99 */ { 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
+ /* GNUC11 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
+ /* GNUC17 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
+ /* GNUC2X */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1 },
+ /* STDC89 */ { 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
+ /* STDC94 */ { 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
+ /* STDC99 */ { 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
+ /* STDC11 */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
+ /* STDC17 */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
+ /* STDC2X */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1 },
+ /* GNUCXX */ { 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
+ /* CXX98 */ { 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0 },
+ /* GNUCXX11 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0 },
+ /* CXX11 */ { 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0 },
+ /* GNUCXX14 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0 },
+ /* CXX14 */ { 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 },
+ /* GNUCXX17 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0 },
+ /* CXX17 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0 },
+ /* GNUCXX20 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0 },
+ /* CXX20 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0 },
+ /* GNUCXX23 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1 },
+ /* CXX23 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1 },
+ /* ASM */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
};
/* Sets internal flags correctly for a given language. */
@@ -140,7 +139,6 @@ cpp_set_lang (cpp_reader *pfile, enum c_lang lang)
CPP_OPTION (pfile, extended_numbers) = l->extended_numbers;
CPP_OPTION (pfile, extended_identifiers) = l->extended_identifiers;
CPP_OPTION (pfile, c11_identifiers) = l->c11_identifiers;
- CPP_OPTION (pfile, cxx23_identifiers) = l->cxx23_identifiers;
CPP_OPTION (pfile, std) = l->std;
CPP_OPTION (pfile, digraphs) = l->digraphs;
CPP_OPTION (pfile, uliterals) = l->uliterals;
diff --git a/libcpp/lex.c b/libcpp/lex.c
index 9c27d8b..7e56edc 100644
--- a/libcpp/lex.c
+++ b/libcpp/lex.c
@@ -1838,7 +1838,7 @@ warn_about_normalization (cpp_reader *pfile,
if (NORMALIZE_STATE_RESULT (s) == normalized_C)
cpp_warning_at (pfile, CPP_W_NORMALIZE, &rich_loc,
"`%.*s' is not in NFKC", (int) sz, buf);
- else if (CPP_OPTION (pfile, cxx23_identifiers))
+ else if (CPP_OPTION (pfile, cplusplus))
cpp_pedwarning_at (pfile, CPP_W_NORMALIZE, &rich_loc,
"`%.*s' is not in NFC", (int) sz, buf);
else
diff --git a/libcpp/macro.c b/libcpp/macro.c
index 95e5b8b..6269c15 100644
--- a/libcpp/macro.c
+++ b/libcpp/macro.c
@@ -295,7 +295,7 @@ static cpp_context *next_context (cpp_reader *);
static const cpp_token *padding_token (cpp_reader *, const cpp_token *);
static const cpp_token *new_string_token (cpp_reader *, uchar *, unsigned int);
static const cpp_token *stringify_arg (cpp_reader *, const cpp_token **,
- unsigned int, bool);
+ unsigned int);
static void paste_all_tokens (cpp_reader *, const cpp_token *);
static bool paste_tokens (cpp_reader *, location_t,
const cpp_token **, const cpp_token *);
@@ -834,8 +834,7 @@ cpp_quote_string (uchar *dest, const uchar *src, unsigned int len)
/* Convert a token sequence FIRST to FIRST+COUNT-1 to a single string token
according to the rules of the ISO C #-operator. */
static const cpp_token *
-stringify_arg (cpp_reader *pfile, const cpp_token **first, unsigned int count,
- bool va_opt)
+stringify_arg (cpp_reader *pfile, const cpp_token **first, unsigned int count)
{
unsigned char *dest;
unsigned int i, escape_it, backslash_count = 0;
@@ -852,24 +851,6 @@ stringify_arg (cpp_reader *pfile, const cpp_token **first, unsigned int count,
{
const cpp_token *token = first[i];
- if (va_opt && (token->flags & PASTE_LEFT))
- {
- location_t virt_loc = pfile->invocation_location;
- const cpp_token *rhs;
- do
- {
- if (i == count)
- abort ();
- rhs = first[++i];
- if (!paste_tokens (pfile, virt_loc, &token, rhs))
- {
- --i;
- break;
- }
- }
- while (rhs->flags & PASTE_LEFT);
- }
-
if (token->type == CPP_PADDING)
{
if (source == NULL
@@ -1003,6 +984,7 @@ paste_tokens (cpp_reader *pfile, location_t location,
return false;
}
+ lhs->flags |= (*plhs)->flags & (PREV_WHITE | PREV_FALLTHROUGH);
*plhs = lhs;
_cpp_pop_buffer (pfile);
return true;
@@ -1945,8 +1927,7 @@ replace_args (cpp_reader *pfile, cpp_hashnode *node, cpp_macro *macro,
if (src->flags & STRINGIFY_ARG)
{
if (!arg->stringified)
- arg->stringified = stringify_arg (pfile, arg->first, arg->count,
- false);
+ arg->stringified = stringify_arg (pfile, arg->first, arg->count);
}
else if ((src->flags & PASTE_LEFT)
|| (src != macro->exp.tokens && (src[-1].flags & PASTE_LEFT)))
@@ -2066,11 +2047,46 @@ replace_args (cpp_reader *pfile, cpp_hashnode *node, cpp_macro *macro,
{
unsigned int count
= start ? paste_flag - start : tokens_buff_count (buff);
- const cpp_token *t
- = stringify_arg (pfile,
- start ? start + 1
- : (const cpp_token **) (buff->base),
- count, true);
+ const cpp_token **first
+ = start ? start + 1
+ : (const cpp_token **) (buff->base);
+ unsigned int i, j;
+
+ /* Paste any tokens that need to be pasted before calling
+ stringify_arg, because stringify_arg uses pfile->u_buff
+ which paste_tokens can use as well. */
+ for (i = 0, j = 0; i < count; i++, j++)
+ {
+ const cpp_token *token = first[i];
+
+ if (token->flags & PASTE_LEFT)
+ {
+ location_t virt_loc = pfile->invocation_location;
+ const cpp_token *rhs;
+ do
+ {
+ if (i == count)
+ abort ();
+ rhs = first[++i];
+ if (!paste_tokens (pfile, virt_loc, &token, rhs))
+ {
+ --i;
+ break;
+ }
+ }
+ while (rhs->flags & PASTE_LEFT);
+ }
+
+ first[j] = token;
+ }
+ if (j != i)
+ {
+ while (i-- != j)
+ tokens_buff_remove_last_token (buff);
+ count = j;
+ }
+
+ const cpp_token *t = stringify_arg (pfile, first, count);
while (count--)
tokens_buff_remove_last_token (buff);
if (src->flags & PASTE_LEFT)
generated by cgit v1.1 at 2025-10-02 12:48:43 +0000