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* [Bug c/104471] New: ICE with -nostdinc: NULL directory in find_file @ 2022-02-09 18:28 gscfq@t-online.de 2022-12-09 14:58 ` [Bug preprocessor/104471] " pinskia at gcc dot gnu.org 2022-12-09 15:06 ` pinskia at gcc dot gnu.org 0 siblings, 2 replies; 3+ messages in thread From: gscfq@t-online.de @ 2022-02-09 18:28 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104471 Bug ID: 104471 Summary: ICE with -nostdinc: NULL directory in find_file Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: gscfq@t-online.de Target Milestone: --- Affects versions down to at least r5 : (related to pr80753 and pr80755) $ cat z1.c #if __has_include (<stdlib.h>) #endif $ gcc-12-20220206 -c z1.c -nostdinc z1.c:1:20: error: no include path in which to search for stdlib.h 1 | #if __has_include (<stdlib.h>) | ^~~~~~~~~~ cc1: internal compiler error: NULL directory in find_file 0x7c8de2 c_cpp_diagnostic(cpp_reader*, cpp_diagnostic_level, cpp_warning_reason, rich_location*, char const*, __va_list_tag (*) [1]) ../../gcc/c-family/c-common.cc:6670 0x1e12599 cpp_error_at(cpp_reader*, cpp_diagnostic_level, unsigned int, char const*, ...) ../../libcpp/errors.cc:302 0x1e17833 _cpp_find_file ../../libcpp/files.cc:516 0x1e18eba _cpp_has_header ../../libcpp/files.cc:2149 0x1e284f7 builtin_has_include ../../libcpp/macro.cc:429 0x1e284f7 _cpp_builtin_macro_text ../../libcpp/macro.cc:677 0x1e28769 builtin_macro ../../libcpp/macro.cc:762 0x1e25e73 enter_macro_context ../../libcpp/macro.cc:1588 0x1e27b60 cpp_get_token_1 ../../libcpp/macro.cc:3018 0x1e149a4 _cpp_parse_expr ../../libcpp/expr.cc:1334 0x1e0eb43 do_if ../../libcpp/directives.cc:2060 0x1e10450 _cpp_handle_directive ../../libcpp/directives.cc:557 0x1e20c88 _cpp_lex_token ../../libcpp/lex.cc:3410 0x1e279ff cpp_get_token_1 ../../libcpp/macro.cc:2930 0x7e553d c_lex_with_flags(tree_node**, unsigned int*, unsigned char*, int) ../../gcc/c-family/c-lex.cc:483 0x74bb81 c_lex_one_token ../../gcc/c/c-parser.cc:279 0x788454 c_parser_peek_token(c_parser*) ../../gcc/c/c-parser.cc:483 0x788454 c_parse_file() ../../gcc/c/c-parser.cc:23317 0x7f7812 c_common_parse_file() ../../gcc/c-family/c-opts.cc:1238 ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug preprocessor/104471] ICE with -nostdinc: NULL directory in find_file 2022-02-09 18:28 [Bug c/104471] New: ICE with -nostdinc: NULL directory in find_file gscfq@t-online.de @ 2022-12-09 14:58 ` pinskia at gcc dot gnu.org 2022-12-09 15:06 ` pinskia at gcc dot gnu.org 1 sibling, 0 replies; 3+ messages in thread From: pinskia at gcc dot gnu.org @ 2022-12-09 14:58 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104471 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Status|UNCONFIRMED |NEW Last reconfirmed| |2022-12-09 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Confirmed. ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug preprocessor/104471] ICE with -nostdinc: NULL directory in find_file 2022-02-09 18:28 [Bug c/104471] New: ICE with -nostdinc: NULL directory in find_file gscfq@t-online.de 2022-12-09 14:58 ` [Bug preprocessor/104471] " pinskia at gcc dot gnu.org @ 2022-12-09 15:06 ` pinskia at gcc dot gnu.org 1 sibling, 0 replies; 3+ messages in thread From: pinskia at gcc dot gnu.org @ 2022-12-09 15:06 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104471 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This patch should fix the issue (I might get to it in a few weeks though): diff --git a/libcpp/files.cc b/libcpp/files.cc index a18b1caf48d..eb90fa4f65a 100644 --- a/libcpp/files.cc +++ b/libcpp/files.cc @@ -177,7 +177,7 @@ static bool read_file_guts (cpp_reader *pfile, _cpp_file *file, static bool read_file (cpp_reader *pfile, _cpp_file *file, location_t loc); static struct cpp_dir *search_path_head (cpp_reader *, const char *fname, - int angle_brackets, enum include_type); + int angle_brackets, enum include_type, bool = true); static const char *dir_name_of_file (_cpp_file *file); static void open_file_failed (cpp_reader *pfile, _cpp_file *file, int, location_t); @@ -1026,7 +1026,7 @@ _cpp_mark_file_once_only (cpp_reader *pfile, _cpp_file *file) nothing left in the path, returns NULL. */ static struct cpp_dir * search_path_head (cpp_reader *pfile, const char *fname, int angle_brackets, - enum include_type type) + enum include_type type, bool canerror) { cpp_dir *dir; _cpp_file *file; @@ -1055,7 +1055,7 @@ search_path_head (cpp_reader *pfile, const char *fname, int angle_brackets, return make_cpp_dir (pfile, dir_name_of_file (file), pfile->buffer ? pfile->buffer->sysp : 0); - if (dir == NULL) + if (canerror && dir == NULL) cpp_error (pfile, CPP_DL_ERROR, "no include path in which to search for %s", fname); @@ -2144,7 +2144,9 @@ bool _cpp_has_header (cpp_reader *pfile, const char *fname, int angle_brackets, enum include_type type) { - cpp_dir *start_dir = search_path_head (pfile, fname, angle_brackets, type); + cpp_dir *start_dir = search_path_head (pfile, fname, angle_brackets, type, false); + if (!start_dir) + return false; _cpp_file *file = _cpp_find_file (pfile, fname, start_dir, angle_brackets, _cpp_FFK_HAS_INCLUDE, 0); return file->err_no != ENOENT; ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-12-09 15:06 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-02-09 18:28 [Bug c/104471] New: ICE with -nostdinc: NULL directory in find_file gscfq@t-online.de 2022-12-09 14:58 ` [Bug preprocessor/104471] " pinskia at gcc dot gnu.org 2022-12-09 15:06 ` pinskia at gcc dot gnu.org
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