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[Bug 1885827] Re: building plugin failed on Windows with mingw
From: |
Xiaolei |
Subject: |
[Bug 1885827] Re: building plugin failed on Windows with mingw |
Date: |
Fri, 03 Jul 2020 15:04:11 -0000 |
If I keep "-Wl,-soname,$@" in the command , I got similar linking errors.
makefile:
SONAMES := $(addsuffix .dll,$(addprefix lib,$(NAMES)))
QEMU_CFLAGS += -fPIC -fno-stack-protector -DBUILDING_DLL
QEMU_CFLAGS += -I$(SRC_PATH)/include/qemu
all: $(SONAMES)
lib%.dll: %.o
$(CC) -shared -Wl,-soname,$@ -o $@ $^ $(LDLIBS)
output:
x86_64-w64-mingw32-gcc -shared -Wl,-soname,libbb.dll -o libbb.dll bb.o
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o: in function `g_autoptr_cleanup_generic_gfree':
C:/msys64/mingw64/include/glib-2.0/glib/glib-autocleanups.h:28: undefined
reference to `g_free'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o: in function `plugin_exit':
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:27: undefined reference to
`g_strdup_printf'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:29: undefined reference to
`qemu_plugin_outs'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o: in function `vcpu_tb_trans':
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:42: undefined reference to
`qemu_plugin_tb_n_insns'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:45: undefined reference to
`qemu_plugin_register_vcpu_tb_exec_inline'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:47: undefined reference to
`qemu_plugin_register_vcpu_tb_exec_inline'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:50: undefined reference to
`qemu_plugin_register_vcpu_tb_exec_cb'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o: in function `qemu_plugin_install':
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:64: undefined reference to
`qemu_plugin_register_vcpu_tb_trans_cb'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:65: undefined reference to
`qemu_plugin_register_atexit_cb'
collect2.exe: error: ld returned 1 exit status
On windows, I replace $LDLIBS with $LIBS here, because $LDLIBS seems
undefined. But still yields linking error, except.
lib%.dll: %.o
$(CC) -shared -Wl,-soname,$@ -o $@ $^ $(LIBS)"
x86_64-w64-mingw32-gcc -shared -Wl,-soname,libbb.dll -o libbb.dll bb.o -ldl
-LC:/msys64/mingw64/lib -lz -LC:/msys64/mingw64/lib -lgmodule-2.0 -pthread
-lglib-2.0 -lintl -LC:/msys64/mingw64/lib -lgthread-2.0 -pthread -lglib-2.0
-lintl -lwinmm -lws2_32 -liphlpapi
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o: in function `plugin_exit':
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:29: undefined reference to
`qemu_plugin_outs'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o: in function `vcpu_tb_trans':
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:42: undefined reference to
`qemu_plugin_tb_n_insns'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:45: undefined reference to
`qemu_plugin_register_vcpu_tb_exec_inline'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:47: undefined reference to
`qemu_plugin_register_vcpu_tb_exec_inline'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:50: undefined reference to
`qemu_plugin_register_vcpu_tb_exec_cb'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o: in function `qemu_plugin_install':
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:64: undefined reference to
`qemu_plugin_register_vcpu_tb_trans_cb'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/QRS_Project/simdsp/qemu-4.2.0/tests/plugin/bb.c:65: undefined reference to
`qemu_plugin_register_atexit_cb'
The libdl library (where dlopen() is defined) was not shipped with
MSYS2 mingw . It is compiled from source(https://github.com/dlfcn-win32
/dlfcn-win32), and I place the generated libdl.dll, libdl.a, libdl.dll.a
in C:\msys64\mingw64\include. dlfcn.h in C:\msys64\mingw64\include.
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https://bugs.launchpad.net/bugs/1885827
Title:
building plugin failed on Windows with mingw
Status in QEMU:
New
Bug description:
I want to build QEMU 4.2.0's plugin module on Windows 7/10 with Mingw, but
the building process faild.
The step I follow is listed below:
1. create "dsp_build" diretory under source file folder
2. change directory to dsp_build , and run ../configure
--target-list=dsp-softmmu --cross-prefix=x86_64-w64-mingw32- --enable-gtk
--enable-sdl --enable-debug --enable-plugins
3. build qemu project
4. switch dir to /dsp_build, make -C tests/plugin, yeilds error:
CC bb.o
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:17:24:
error: variable 'qemu_plugin_version' definition is marked dllimport
17 | QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
| ^~~~~~~~~~~~~~~~~~~
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:17:24:
warning: 'qemu_plugin_version' redeclared without dllimport attribute: previous
dllimport ignored [-Wattributes]
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c: In
function 'vcpu_tb_exec':
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:33:29:
warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
33 | unsigned long n_insns = (unsigned long)udata;
| ^
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c: In
function 'vcpu_tb_trans':
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:51:46:
warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
51 | (void *)n_insns);
5. Then , I modified the QEMU_flags and the compilation command
arguments($(CC) ..) in the makefile :
BUILD_DIR := $(CURDIR)/../..
include $(BUILD_DIR)/config-host.mak
include $(SRC_PATH)/rules.mak
$(call set-vpath, $(SRC_PATH)/tests/plugin)
NAMES :=
NAMES += bb
NAMES += empty
NAMES += insn
NAMES += mem
NAMES += hotblocks
NAMES += howvec
NAMES += hotpages
SONAMES := $(addsuffix .so,$(addprefix lib,$(NAMES)))
QEMU_CFLAGS += -fPIC -DBUILDING_DLL #added
-DBUILDING_DLL
QEMU_CFLAGS += -I$(SRC_PATH)/include/qemu
all: $(SONAMES)
lib%.so: %.o
$(CC) -fPIC -shared -o $@ $^ $(LDLIBS) -L
/c/msys64/mingw64/lib/ -lglib-2.0
# original cmd: $(CC) -shared -Wl,-soname,$@ -o $@ $^
$(LDLIBS)
clean:
rm -f *.o *.so *.d
rm -Rf .libs
.PHONY: all clean
6. Executing make yeilds:
make: enter
“/d/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/build_dsp/tests/plugin”
CC bb.o
x86_64-w64-mingw32-gcc -fPIC -shared -o libbb.so bb.o -L
/c/msys64/mingw64/lib/ -lglib-2.0
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o: in function `plugin_exit':
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:28:
undefined reference to `qemu_plugin_outs'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:29:
undefined reference to `__stack_chk_fail'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o: in function `vcpu_tb_trans':
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:41:
undefined reference to `qemu_plugin_tb_n_insns'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:44:
undefined reference to `qemu_plugin_register_vcpu_tb_exec_inline'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:46:
undefined reference to `qemu_plugin_register_vcpu_tb_exec_inline'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:49:
undefined reference to `qemu_plugin_register_vcpu_tb_exec_cb'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o: in function `qemu_plugin_install':
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:63:
undefined reference to `qemu_plugin_register_vcpu_tb_trans_cb'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
D:/emu_devl/qemu_src/qemu-sr-dsp-a/qemu_tidsp_c3x/tests/plugin/bb.c:64:
undefined reference to `qemu_plugin_register_atexit_cb'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
bb.o:bb.c:(.rdata$.refptr.__stack_chk_guard[.refptr.__stack_chk_guard]+0x0):
undefined reference to `__stack_chk_guard'
collect2.exe: error: ld returned 1 exit status
It looks like linking problem(fail to link functions defined in api.c,
core.c...), but I have no idea what goes wrong. If I mannualy add api.o, core.o
in the compilation command, still get error like undefined reference to
'__stack_chk_guard'.
My collegue can build 4.2.0 plugins on Ubuntu Linux without any problem.
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- [Bug 1885827] Re: building plugin failed on Windows with mingw,
Xiaolei <=
- [Bug 1885827] Re: building plugin failed on Windows with mingw, Emilio G. Cota, 2020/07/03
- [Bug 1885827] Re: building plugin failed on Windows with mingw, Emilio G. Cota, 2020/07/04
- [Bug 1885827] Re: building plugin failed on Windows with mingw, Xiaolei, 2020/07/06
- [Bug 1885827] Re: building plugin failed on Windows with mingw, Emilio G. Cota, 2020/07/06
- [Bug 1885827] Re: building plugin failed on Windows with mingw, Xiaolei, 2020/07/07
- [Bug 1885827] Re: building plugin failed on Windows with mingw, Emilio G. Cota, 2020/07/08