bug:编译时针对warning出现问题

[shlies]

文件内容：

#include<stdio.h>
#include<stdlib.h>
int main(int argc, char *argv[ ])
{
      double *p;

      printf("%lld\n", sizeof(int));

      p = (double *)malloc(sizeof(*p));      
      return 0;
}

正常情况：

/usr/bin/gcc -fdiagnostics-color=always -g /home/shlies/pta/pta.c -o /home/shlies/pta/pta
/home/shlies/pta/pta.c: In function ‘main’:
/home/shlies/pta/pta.c:7:18: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 2 has type ‘long unsigned int’ [-Wformat=]
    7 |       printf("%lld\n", sizeof(int));
      |               ~~~^     ~~~~~~~~~~~
      |                  |     |
      |                  |     long unsigned int
      |                  long long int
      |               %ld

更换后：

/usr/bin/gcc -fdiagnostics-color=always -g /home/shlies/pta/pta.c -o /home/shlies/pta/pta

就...就在那个叫‘main’的函数里！:
段错误
    7 |       printf("%lld\n", sizeof(int));
      |       ^~~~~~
0xc29ac3 crash_signal
        ../../src/gcc/toplev.cc:314
0x7f43a5b3a08f ???
        /build/glibc-wuryBv/glibc-2.31/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7f43a5c7f915 ???
        ../sysdeps/x86_64/multiarch/strlen-avx2.S:65
0x1a9115f pp_string(pretty_printer*, char const*)
        ../../src/gcc/pretty-print.cc:1828
0x1a9115f pp_format(pretty_printer*, text_info*)
        ../../src/gcc/pretty-print.cc:1457
0x1a80dd1 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
        ../../src/gcc/diagnostic.cc:1592
0xc23d66 format_string_diagnostic_t::emit_warning_n_va(int, unsigned long, char const*, char const*, __va_list_tag (*) [1]) const
        ../../src/gcc/substring-locations.cc:216
0xc23ffd format_string_diagnostic_t::emit_warning_va(int, char const*, __va_list_tag (*) [1]) const
        ../../src/gcc/substring-locations.cc:241
0xc23ffd format_string_diagnostic_t::emit_warning(int, char const*, ...) const
        ../../src/gcc/substring-locations.cc:252
0x760c04 format_type_warning
        ../../src/gcc/c-family/c-format.cc:4754
0x7644e1 check_format_types
        ../../src/gcc/c-family/c-format.cc:4272
0x7644e1 argument_parser::check_argument_type(format_char_info const*, length_modifier const&, tree_node*&, char const*&, bool, unsigned long&, tree_node*&, int, char const*, char const*, unsigned int, char)
        ../../src/gcc/c-family/c-format.cc:2859
0x765901 check_format_info_main
        ../../src/gcc/c-family/c-format.cc:3999
0x765901 check_format_arg
        ../../src/gcc/c-family/c-format.cc:1822
0x7622e0 check_format_info
        ../../src/gcc/c-family/c-format.cc:1543
0x7622e0 check_function_format(tree_node const*, tree_node*, int, tree_node**, vec<unsigned int, va_heap, vl_ptr>*)
        ../../src/gcc/c-family/c-format.cc:1198
0x75430c check_function_arguments(unsigned int, tree_node const*, tree_node const*, int, tree_node**, vec<unsigned int, va_heap, vl_ptr>*)
        ../../src/gcc/c-family/c-common.cc:6093
0x6d4440 build_function_call_vec(unsigned int, vec<unsigned int, va_heap, vl_ptr>, tree_node*, vec<tree_node*, va_gc, vl_embed>*, vec<tree_node*, va_gc, vl_embed>*, tree_node*)
        ../../src/gcc/c/c-typeck.cc:3308
0x6f6d91 c_parser_postfix_expression_after_primary
        ../../src/gcc/c/c-parser.cc:11242
0x6e6da2 c_parser_postfix_expression
        ../../src/gcc/c/c-parser.cc:10849
Please submit a full bug report, with preprocessed source (by using -freport-bug).
Please include the complete backtrace with any bug report.
参阅 <file:///usr/share/doc/gcc-13/README.Bugs> 以获取指示。

环境

WSL2 Ubuntu20.04.6 LTS
gcc-13

[Bill-Haku]

我不知道为什么会报段错误。理论上这应该是gcc主程序的问题。

[dabao1955]

user@localhost ~/mini> /usr/bin/gcc -fdiagnostics-color=always -g main.c
user@localhost ~/mini> cat main.c
#include<stdio.h>
#include<stdlib.h>
int main(int argc, char *argv[ ])
{
      double *p;

      printf("%lld\n", sizeof(int));

      p = (double *)malloc(sizeof(*p));
      return 0;
}
user@localhost ~/mini>

debian12 gcc12.3未出现编译错误

[Elvisass]

似乎针对printf的warning都会出问题，我这边gcc 7.5.0 ubuntu 18.04直接整个大活：
cc1plus: out of memory allocating 18446744072437955510 bytes after a total of 1957888 bytes

开verbose看到：

就...就在那个叫‘int main(int, char**)’的函数里！:
段错误
             printf("Test loop %lu/%lu in %d ms\n", i, loops, (timeMs() - timec) / 100);
                                                                                      ^
Please submit a full bug report,
with preprocessed source if appropriate.
参阅 <file:///usr/share/doc/gcc-7/README.Bugs> 以获取指示。

删除翻译文件后，gcc正常提示是：

main.cpp: In function ‘int main(int, char**)’:
main.cpp:192:86: warning: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘long unsigned int’ [-Wformat=]
             printf("Test loop %lu/%lu in %d ms\n", i, loops, (timeMs() - timec) / 100);
                                                              ~~~~~~~~~~~~~~~~~~~~~~~~^
main.cpp: In function ‘Type1* func1(const char*)’:
main.cpp:50:12: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
     ::fread(ret->data, fsize, 1, fp);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

16 ZB，精彩（

[dabao1955]

root@localhost:~# cc main.c
‘
就...就在那个叫‘main’的函数里！:
段错误
       printf("%lld\n", sizeof(int));
       ^~~~~~
Please submit a full bug report,
with preprocessed source if appropriate.
参阅 <file:///usr/share/doc/gcc-7/README.Bugs> 以获取指示。
root@localhost:~# rm /usr/share/locale/zh_CN/LC_MESSAGES/gcc-7.mo                                                     root@localhost:~# cc main.c
main.c: そ、その ‘main’ という関数の内:
main.c:7:18: ざぁーこ！書式 ‘%lld’ は引数の型が ‘long long int’ であると予期されますが、第 2 引数の型は ‘long unsigned int’ です [-Wformat=]
       printf("%lld\n", sizeof(int));
               ~~~^
               %ld
root@localhost:~# gcc -v
組み込み spec を使用しています。
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/aarch64-linux-gnu/7/lto-wrapper
ターゲット: aarch64-linux-gnu
configure 設定: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 7.5.0-3ubuntu1~18.04' --with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-7 --program-prefix=aarch64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --enable-multiarch --enable-fix-cortex-a53-843419 --disable-werror --enable-checking=release --build=aarch64-linux-gnu --host=aarch64-linux-gnu --target=aarch64-linux-gnu
スレッドモデル: posix
gcc バージョン 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)
root@localhost:~#

实测同楼上一样，只有日文使用没问题。
如有必要建议优先使用日文版。