On Tue, 17 Feb 2009 01:22:37 +0000, Pedro Alves <alves....@gmail.com>
wrote:
> On Monday 16 February 2009 22:55:27, Vincent R. wrote:
>> I have also noticed that you have hardcoded exception mode in t-wince-pe
>> :
>>
>> ...
>> # This should go somewhere else.
>> # We are using SjLj EH.
>> EH_MODEL = sjlj
>>
>>
>> Wouldn't be possible to do what I suggest in a previous email and use
the
>> same logic as mingw ?
>>
>
> Well, yes, we could, but, I don't think that anything but sjlj
> will work currently. Hey, wouldn't it be nice if that was:
>
>> EH_MODEL = seh
>
> :-)
Florent is working on it or should I say is supposed to do so ;-)
I got no news from him, I think he might be go skiing without telling me.
Last time I talked to him, he did some parsing stuff and was emitting some
barrier
buth his problem was gcc removed his instructions during optimizations.
When testing cegcc-4.4 when compiling a lib from EFL
libtool: link: arm-mingw32ce-gcc -O3 -pipe -Wl,--enable-auto-import -Wl,-s
-o .libs/evil_suite.exe evil_suite.o evil_test_dlfcn.o
evil_test_environment.o evil_test_gettimeofday.o evil_test_link.o
evil_test_memcpy.o evil_test_mkstemp.o evil_test_realpath.o
memcpy_glibc_arm.o -L/home/vincent/local/wince/lib
-L/home/vincent/toolchains/mingw32ce-4.4.0/lib
../../src/lib/.libs/libevil.a ../../src/lib/dlfcn/.libs/libdl.a
/home/vincent/projects/efl/PROTO/evil/src/lib/.libs/libevil.a -lws2
evil_suite.o:evil_suite.c:(.text+0x20): undefined reference to
`__floatdidf'
evil_suite.o:evil_suite.c:(.text+0x30): undefined reference to
`__floatdidf'
Any idea why ?
Please note that from Vincent Torri explanation, libtool error message
prepend a _ so actually linker cannot find
_floatdidf function.
I may have an explanation, it seems libstdc++ shared lib is not built, I
will check in this direction.
I have also noticed some differences in mingw32.h, it seems that you have
removed some stuff about shared libs
because if I look at LINK_SPEC for instance
I have the following
#define LINK_SPEC "%{shared: %{mdll: %eshared and mdll are not compatible}}
\
%{shared: --shared} %{mdll:--dll} \
%{static:-Bstatic} %{!static:-Bdynamic} \
%{shared|mdll: -e DllMainCRTStartup} \
and from your patch :
#define LINK_SPEC "%{shared: --shared} \
%{static:-Bstatic} %{!static:-Bdynamic} \
%{shared|mdll: -e DllMainCRTStartup --enable-auto-image-base} \
%(shared_libgcc_undefs)"
...
During my investigations I noticed also that when I used
--enable-auto-image-base, dll entry point
was located at a wrong address but you seem to use it anyway.
So my questions is have you removed %mdll on purpose or is it a mistake ?
/* Operating system specific defines to be used when targeting GCC for
hosting on Windows32, using GNU tools and the Windows32 API Library.
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007
Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (ARM MinGW)");
#undef EXTRA_OS_CPP_BUILTINS
#define EXTRA_OS_CPP_BUILTINS() \
do \
{ \
builtin_define ("__COREDLL__"); \
builtin_define ("__MINGW32__"); \
builtin_define ("__MINGW32CE__"); \
builtin_define ("_WIN32"); \
builtin_define_std ("WIN32"); \
builtin_define_std ("WINNT"); \
builtin_define_with_int_value ("_INTEGRAL_MAX_BITS", \
TYPE_PRECISION (intmax_type_node));\
} \
while (0)
/* Override the standard choice of /usr/include as the default prefix
to try when searching for header files. */
#undef STANDARD_INCLUDE_DIR
#define STANDARD_INCLUDE_DIR "/mingw/include"
#undef STANDARD_INCLUDE_COMPONENT
#define STANDARD_INCLUDE_COMPONENT "MINGW"
#undef CPP_SPEC
#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT}"
/* For Windows applications, include more libraries, but always include
kernel32. */
#undef LIB_SPEC
#define LIB_SPEC "%{pg:-lgmon} -lcoredll"
/* Weak symbols do not get resolved if using a Windows dll import lib.
Make the unwind registration references strong undefs. */
#if DWARF2_UNWIND_INFO
#define SHARED_LIBGCC_UNDEFS_SPEC \
"%{shared-libgcc: -u ___register_frame_info -u ___deregister_frame_info}"
#else
#define SHARED_LIBGCC_UNDEFS_SPEC ""
#endif
#undef SUBTARGET_EXTRA_SPECS
#define SUBTARGET_EXTRA_SPECS \
{ "shared_libgcc_undefs", SHARED_LIBGCC_UNDEFS_SPEC }
#undef LINK_SPEC
#define LINK_SPEC "%{shared: %{mdll: %eshared and mdll are not compatible}} \
%{shared: --shared} %{mdll:--dll} \
%{static:-Bstatic} %{!static:-Bdynamic} \
%{shared|mdll: -e DllMainCRTStartup} \
%(shared_libgcc_undefs)"
/* Include in the mingw32 libraries with libgcc */
#ifdef ENABLE_SHARED_LIBGCC
#define SHARED_LIBGCC_SPEC "%{shared-libgcc:-lgcc_s} %{!shared-libgcc:-lgcc_eh}"
#else
#define SHARED_LIBGCC_SPEC /*empty*/
#endif
/* #undef REAL_LIBGCC_SPEC */
#undef REAL_LIBGCC_SPEC
#define REAL_LIBGCC_SPEC \
"%{mthreads:-lmingwthrd} -lmingw32 \
"SHARED_LIBGCC_SPEC" \
-lgcc \
-lceoldname -lmingwex -lcoredll"
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{shared|mdll:dllcrt3%O%s} \
%{!shared:%{!mdll:crt3%O%s}} %{pg:gcrt3%O%s} \
crtbegin.o%s"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
crtend.o%s"
/* Override startfile prefix defaults. */
#ifndef STANDARD_STARTFILE_PREFIX_1
#define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib/"
#endif
#ifndef STANDARD_STARTFILE_PREFIX_2
#define STANDARD_STARTFILE_PREFIX_2 ""
#endif
/* Output STRING, a string representing a filename, to FILE.
We canonicalize it to be in Unix format (backslashes are replaced
forward slashes. */
#undef OUTPUT_QUOTED_STRING
#define OUTPUT_QUOTED_STRING(FILE, STRING) \
do { \
char c; \
\
putc ('\"', asm_file); \
\
while ((c = *string++) != 0) \
{ \
if (c == '\\') \
c = '/'; \
\
if (ISPRINT (c)) \
{ \
if (c == '\"') \
putc ('\\', asm_file); \
putc (c, asm_file); \
} \
else \
fprintf (asm_file, "\\%03o", (unsigned char) c); \
} \
\
putc ('\"', asm_file); \
} while (0)
/* Define as short unsigned for compatibility with MS runtime. */
#undef WINT_TYPE
#define WINT_TYPE "short unsigned int"
/* mingw32 uses the -mthreads option to enable thread support. */
#undef GOMP_SELF_SPECS
#define GOMP_SELF_SPECS "%{fopenmp: -mthreads}"
/* mingw32 atexit function is safe to use in shared libraries. Use it
to register C++ static destructors. */
#define TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT hook_bool_void_true
/* Contains a pointer to type target_ovr_attr defining the target specific
overrides of format attributes. See c-format.h for structure
definition. */
#undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES
#define TARGET_OVERRIDES_FORMAT_ATTRIBUTES mingw_format_attribute_overrides
/* Specify the count of elements in TARGET_OVERRIDES_ATTRIBUTE. */
#undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT
#define TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 3
/* Custom initialization for warning -Wpedantic-ms-format for c-format. */
/* #undef TARGET_OVERRIDES_FORMAT_INIT */
/* #define TARGET_OVERRIDES_FORMAT_INIT msformat_init */
/* MS specific format attributes for ms_printf, ms_scanf, ms_strftime. */
#undef TARGET_FORMAT_TYPES
#define TARGET_FORMAT_TYPES mingw_format_attributes
#undef TARGET_N_FORMAT_TYPES
#define TARGET_N_FORMAT_TYPES 3
/* Let defaults.h definition of TARGET_USE_JCR_SECTION apply. */
#undef TARGET_USE_JCR_SECTION
#undef MINGW_ENABLE_EXECUTE_STACK
#define MINGW_ENABLE_EXECUTE_STACK \
extern void __enable_execute_stack (void *); \
void \
__enable_execute_stack (void *addr) \
{ \
MEMORY_BASIC_INFORMATION b; \
if (!VirtualQuery (addr, &b, sizeof(b))) \
abort (); \
VirtualProtect (b.BaseAddress, b.RegionSize, PAGE_EXECUTE_READWRITE, \
&b.Protect); \
}
#undef ENABLE_EXECUTE_STACK
#define ENABLE_EXECUTE_STACK MINGW_ENABLE_EXECUTE_STACK
#if defined(IN_LIBGCC2) && defined(L_enable_execute_stack)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
/* #if !TARGET_64BIT */
#define MD_UNWIND_SUPPORT "config/i386/w32-unwind.h"
/* #endif */
/* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygming. */
/* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */
#if DWARF2_UNWIND_INFO
#define LIBGCC_EH_EXTN "_dw2"
#else
#define LIBGCC_EH_EXTN "_sjlj"
#endif
#define LIBGCC_SONAME "libgcc_s" LIBGCC_EH_EXTN "-1.dll"
#undef SUPPORTS_INIT_PRIORITY
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