https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100486
--- Comment #31 from Óscar Fuentes <gcc_bugzilla at axeitado dot com> ---
> Could you replay the compilation of this file? In the top level directory,
> do
> rm i686-w64-mingw32/libgcc/crtend.o
> make all-target-libgcc
> copy the (long) command line, go into the i686-w64-mingw32/libgcc directory
> and execute it after adding -save-temps to it. You should get a small
> assembly file named crtend.s and I would be interested in its contents.
The compilation emits this warning:
../../../gcc-11.2.0/libgcc/config/i386/cygming-crtend.c:59:1: warning:
constructor priorities from 0 to 100 are reserved for the implementation
[-Wprio-ctor-dtor]
59 | static void register_frame_ctor (void) __attribute__ ((constructor
(0)));
| ^~~~~~
Contents of crtend.s:
$ cat crtend.s
.file "cygming-crtend.c"
.text
.section .eh_frame,"w"
.align 4
___FRAME_END__:
.space 4
.text
.def _register_frame_ctor; .scl 3; .type 32; .endef
_register_frame_ctor:
LFB55:
.cfi_startproc
pushl %ebp
.cfi_def_cfa_offset 8
.cfi_offset 5, -8
movl %esp, %ebp
.cfi_def_cfa_register 5
subl $8, %esp
call ___gcc_register_frame
leave
.cfi_restore 5
.cfi_def_cfa 4, 4
ret
.cfi_endproc
LFE55:
.section .ctors.65535,"w"
.align 4
.long _register_frame_ctor
.ident "GCC: (Rev1, Built by MSYS2 project) 11.2.0"
.def ___gcc_register_frame; .scl 2; .type 32; .endef
