[Bug sim/27705] New: Error cross-compiling binutils-gdb for windows

["stepanstepan0000 at gmail dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=27705

            Bug ID: 27705
           Summary: Error cross-compiling binutils-gdb for windows
           Product: gdb
           Version: HEAD
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: sim
          Assignee: unassigned at sourceware dot org
          Reporter: stepanstepan0000 at gmail dot com
                CC: vapier at gentoo dot org
  Target Milestone: ---

I cloned binutils-gdb repository from master branch on a linux machine (Ubuntu)
and I want to compile it for Windows (using x86_64_w64_mingw32 toolchain).

First, I ran ./configure with the following options to specify the
cross-compile toolchain.

./configure --prefix=/usr/x86_64-w64-mingw32 --target=arm-none-eabi
--host=x86_64-w64-mingw32

Then I ran make and get the following error (I omitted most of the output
because it is pretty large):

[...]
x86_64-w64-mingw32-gcc  -DHAVE_CONFIG_H 
-DWITH_DEFAULT_ALIGNMENT=STRICT_ALIGNMENT     -DDEFAULT_INLINE=0   -Wall
-Wdeclaration-after-statement -Wpointer-arith -Wpointer-sign -Wno-unused
-Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts
-Wmissing-prototypes -Wdeclaration-after-statement -Wempty-body
-Wmissing-parameter-type -Wold-style-declaration -Wold-style-definition
-Wno-format -Werror  -DMODET -I. -I. -I../common -I./../common -I../../include
-I./../../include -I../../bfd -I./../../bfd -I../../opcodes -I./../../opcodes
-I../../intl -g -O2     -c -o callback.o -MT callback.o -MMD -MP -MF
.deps/callback.Tpo ./../common/callback.c
./../common/callback.c: In function ‘os_time’:
./../common/callback.c:417:25: error: passing argument 1 of ‘time’ from
incompatible pointer type [-Werror=incompatible-pointer-types]
  417 |   return wrap (p, time (t));
      |                         ^
      |                         |
      |                         long int *
In file included from ./../common/callback.c:35:
/usr/share/mingw-w64/include/time.h:230:47: note: expected ‘time_t *’ {aka
‘long long int *’} but argument is of type ‘long int *’
  230 | static __inline time_t __CRTDECL time(time_t *_Time) { return
_time64(_Time); }
      |                                       ~~~~~~~~^~~~~
cc1: all warnings being treated as errors
make[3]: *** [Makefile:513: callback.o] Error 1
make[3]: Leaving directory '/media/D/Work/FC/binutils-gdb/sim/arm'
make[2]: *** [Makefile:928: all-recursive] Error 1
make[2]: Leaving directory '/media/D/Work/FC/binutils-gdb/sim'
make[1]: *** [Makefile:8376: all-sim] Error 2
make[1]: Leaving directory '/media/D/Work/FC/binutils-gdb'
make: *** [Makefile:915: all] Error 2

I think it has something to do with time_t being typedef'd as a long long int
(64 bit integer) in the host platform (Windows), however, the function os_time
from the file sim/common/callback.c:414 (path relative to project root), takes
a long (32 bit integer) as a parameter:

static long
os_time (host_callback *p, long *t)
{
  return wrap (p, time (t));
}

How can I fix this error?

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