https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101638
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2021-08-04
Status|UNCONFIRMED |NEW
CC| |jsm28 at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Reduced test-case:
$ cat y.c
# define __GNUC_PREREQ(maj, min) 0
# define __glibc_has_attribute(attr) __has_attribute (attr)
#if __GNUC_PREREQ (3,2) || __glibc_has_attribute (__deprecated__)
#endif
$ gcc y.c -Wtraditional -c
y.c:1: internal compiler error: Segmentation fault
1 | # define __GNUC_PREREQ(maj, min) 0
|
0xeb7f3a crash_signal
/home/marxin/Programming/gcc/gcc/toplev.c:328
0x7ffff786239f ???
../sysdeps/unix/sysv/linux/sigaction.c:10
0x1b8a148 cpp_sys_macro_p(cpp_reader*)
/home/marxin/Programming/gcc/libcpp/macro.c:3130
0x1b79158 cpp_classify_number(cpp_reader*, cpp_token const*, char const**,
unsigned int)
/home/marxin/Programming/gcc/libcpp/expr.c:786
0x1b7ae12 eval_token
/home/marxin/Programming/gcc/libcpp/expr.c:1136
0x1b7ae12 _cpp_parse_expr
/home/marxin/Programming/gcc/libcpp/expr.c:1354
0x1b73459 do_if
/home/marxin/Programming/gcc/libcpp/directives.c:2055
0x1b75469 _cpp_handle_directive
/home/marxin/Programming/gcc/libcpp/directives.c:553
0x1b846f0 _cpp_lex_token
/home/marxin/Programming/gcc/libcpp/lex.c:2819
0x1b8c597 cpp_get_token_1
/home/marxin/Programming/gcc/libcpp/macro.c:2845
0x95627a c_lex_with_flags(tree_node**, unsigned int*, unsigned char*, int)
/home/marxin/Programming/gcc/gcc/c-family/c-lex.c:483
0x8d2f8b c_lex_one_token
/home/marxin/Programming/gcc/gcc/c/c-parser.c:279
0x8d3c91 c_parser_peek_token(c_parser*)
/home/marxin/Programming/gcc/gcc/c/c-parser.c:483
0x9009cb c_parse_file()
/home/marxin/Programming/gcc/gcc/c/c-parser.c:22115
0x964ce9 c_common_parse_file()
/home/marxin/Programming/gcc/gcc/c-family/c-opts.c:1223
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Started with r11-4953-g1d00f8c86324c40a.
==421== Invalid read of size 1
==421== at 0x1B8A148: cpp_sys_macro_p(cpp_reader*) (macro.c:3130)
==421== by 0x1B79158: cpp_classify_number(cpp_reader*, cpp_token const*,
char const**, unsigned int) (expr.c:786)
==421== by 0x1B7AE12: eval_token (expr.c:1136)
==421== by 0x1B7AE12: _cpp_parse_expr (expr.c:1354)
==421== by 0x1B73459: do_if(cpp_reader*) (directives.c:2055)
==421== by 0x1B75469: _cpp_handle_directive (directives.c:553)
==421== by 0x1B846F0: _cpp_lex_token (lex.c:2819)
==421== by 0x1B8C597: cpp_get_token_1(cpp_reader*, unsigned int*)
(macro.c:2845)
==421== by 0x95627A: c_lex_with_flags(tree_node**, unsigned int*, unsigned
char*, int) (c-lex.c:483)
==421== by 0x8D2F8B: c_lex_one_token(c_parser*, c_token*, bool)
(c-parser.c:279)
==421== by 0x8D3C91: c_parser_peek_token(c_parser*) (c-parser.c:483)
==421== by 0x9009CB: c_parse_file() (c-parser.c:22115)
==421== by 0x964CE9: c_common_parse_file() (c-opts.c:1223)
==421== Address 0x1e is not stack'd, malloc'd or (recently) free'd
