Re: I wanna fixes plugin on windows, any suggestion

[Paolo Bonzini]

On 25/09/20 21:12, 罗勇刚(Yonggang Luo) wrote:
> currently the empty.c plugin are failed of linkage error
> 
> The fowlloing are the failing message:
> Compiling C object tests/plugin/libbb.dll.p/bb.c.obj
> Linking target tests/plugin/libempty.dll
> Linking target tests/plugin/libinsn.dll
> Linking target tests/plugin/libmem.dll
> ../tests/plugin/bb.c: In function 'vcpu_tb_exec':
> ../tests/plugin/bb.c:75:29: error: cast from pointer to integer of
> different size [-Werror=pointer-to-int-cast]
>    75 |     unsigned long n_insns = (unsigned long)udata;
>       |                             ^
> ../tests/plugin/bb.c: In function 'vcpu_tb_trans':
> ../tests/plugin/bb.c:95:46: error: cast to pointer from integer of
> different size [-Werror=int-to-pointer-cast]
>    95 |                                              (void *)n_insns);
>       |                                              ^

Plugins cannot work on Windows, because they would be specific to one
executable as far as I know.  Plugins would have to link with the
emulator's import library, but there would be one import library per
emulator.

Paolo

> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> tests/plugin/libempty.dll.p/empty.c.obj: in function `qemu_plugin_install':
> C:\work\xemu\qemu\build/../tests/plugin/empty.c:30: undefined reference
> to `qemu_plugin_register_vcpu_tb_trans_cb'
> cc1.exe: all warnings being treated as errors
> collect2.exe: error: ld returned 1 exit status
> make: *** [Makefile.ninja:2433：tests/plugin/libempty.dll] 错误 1
> make: *** 正在等待未完成的任务....
> make: *** [Makefile.ninja:2420：tests/plugin/libbb.dll.p/bb.c.obj] 错误 1
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> tests/plugin/libinsn.dll.p/insn.c.obj: in function `vcpu_tb_trans':
> C:\work\xemu\qemu\build/../tests/plugin/insn.c:29: undefined reference
> to `qemu_plugin_tb_n_insns'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> C:\work\xemu\qemu\build/../tests/plugin/insn.c:33: undefined reference
> to `qemu_plugin_tb_get_insn'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> C:\work\xemu\qemu\build/../tests/plugin/insn.c:36: undefined reference
> to `qemu_plugin_register_vcpu_insn_exec_inline'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> C:\work\xemu\qemu\build/../tests/plugin/insn.c:39: undefined reference
> to `qemu_plugin_register_vcpu_insn_exec_cb'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> tests/plugin/libinsn.dll.p/insn.c.obj: in function `plugin_exit':
> C:\work\xemu\qemu\build/../tests/plugin/insn.c:48: undefined reference
> to `qemu_plugin_outs'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> tests/plugin/libinsn.dll.p/insn.c.obj: in function `qemu_plugin_install':
> C:\work\xemu\qemu\build/../tests/plugin/insn.c:59: undefined reference
> to `qemu_plugin_register_vcpu_tb_trans_cb'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> C:\work\xemu\qemu\build/../tests/plugin/insn.c:60: undefined reference
> to `qemu_plugin_register_atexit_cb'
> collect2.exe: error: ld returned 1 exit status
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> tests/plugin/libmem.dll.p/mem.c.obj: in function `plugin_exit':
> C:\work\xemu\qemu\build/../tests/plugin/mem.c:33: undefined reference to
> `qemu_plugin_outs'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> tests/plugin/libmem.dll.p/mem.c.obj: in function `vcpu_mem':
> C:\work\xemu\qemu\build/../tests/plugin/mem.c:41: undefined reference to
> `qemu_plugin_get_hwaddr'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> C:\work\xemu\qemu\build/../tests/plugin/mem.c:42: undefined reference to
> `qemu_plugin_hwaddr_is_io'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> tests/plugin/libmem.dll.p/mem.c.obj: in function `vcpu_tb_trans':
> C:\work\xemu\qemu\build/../tests/plugin/mem.c:54: undefined reference to
> `qemu_plugin_tb_n_insns'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> C:\work\xemu\qemu\build/../tests/plugin/mem.c:58: undefined reference to
> `qemu_plugin_tb_get_insn'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> C:\work\xemu\qemu\build/../tests/plugin/mem.c:61: undefined reference to
> `qemu_plugin_register_vcpu_mem_inline'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> C:\work\xemu\qemu\build/../tests/plugin/mem.c:65: undefined reference to
> `qemu_plugin_register_vcpu_mem_cb'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> tests/plugin/libmem.dll.p/mem.c.obj: in function `qemu_plugin_install':
> C:\work\xemu\qemu\build/../tests/plugin/mem.c:96: undefined reference to
> `qemu_plugin_register_vcpu_tb_trans_cb'
> C:/CI-Tools/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> C:\work\xemu\qemu\build/../tests/plugin/mem.c:97: undefined reference to
> `qemu_plugin_register_atexit_cb'
> make: *** [Makefile.ninja:2440：tests/plugin/libinsn.dll] 错误 1
> collect2.exe: error: ld returned 1 exit status
> make: *** [Makefile.ninja:2447：tests/plugin/libmem.dll] 错误 1
> make -C /c/work/xemu/qemu/slirp
> BUILD_DIR="/c/work/xemu/qemu/build/slirp" PKG_CONFIG="pkg-config"
> CC="cc" AR="ar" LD="ld" RANLIB="ranlib" CFLAGS="-m64 -mcx16
> -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
> -Wstrict-prototypes -Wredundant-decls -Wundef -Wwrite-strings
> -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv
>  -Wold-style-declaration -Wold-style-definition -Wtype-limits
> -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers
> -Wempty-body -Wnested-externs -Wendif-labels -Wexpansion-to-defined
> -Wno-missing-include-dirs -Wno-shift-negative-value -Wno-psabi
> -fstack-protector-strong -g -fno-pie -mthreads -std=gnu99 -Wall"
> LDFLAGS="-Wl,--warn-common -m64  -fstack-protector-strong"
> make[1]: 进入目录“/c/work/xemu/qemu/slirp”
> make[1]: 对“all”无需做任何事。
> make[1]: 离开目录“/c/work/xemu/qemu/slirp”
> make -I/c/work/xemu/qemu/dtc VPATH=/c/work/xemu/qemu/dtc -C dtc V="1"
> LIBFDT_lib="" CPPFLAGS="-I/c/work/xemu/qemu/dtc/libfdt" CFLAGS="-g
> -fno-pie -mthreads -std=gnu99 -Wall -m64 -mcx16 -D_GNU_SOURCE
> -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes
> -Wredundant-decls -Wundef -Wwrite-strings -Wmissing-prototypes
> -fno-strict-aliasing -fno-common -fwrapv  -Wold-style-declaration
> -Wold-style-definition -Wtype-limits -Wformat-security -Wformat-y2k
> -Winit-self -Wignored-qualifiers -Wempty-body -Wnested-externs
> -Wendif-labels -Wexpansion-to-defined -Wno-missing-include-dirs
> -Wno-shift-negative-value -Wno-psabi -fstack-protector-strong"
> LDFLAGS="-Wl,--warn-common -m64  -fstack-protector-strong" ARFLAGS="rv"
> CC="cc" AR="ar" LD="ld"  libfdt
> make[1]: 进入目录“/c/work/xemu/qemu/build/dtc”
> make[1]: 对“libfdt”无需做任何事。
> make[1]: 离开目录“/c/work/xemu/qemu/build/dtc”
> "C:/CI-Tools/msys64/mingw64/bin/python3.exe"
> "C:/work/xemu/qemu/meson/meson.py" "--internal" "exe" "--capture"
> "qemu-version.h" "--" "sh" "C:/work/xemu/qemu/scripts/qemu-version.sh"
> "C:/work/xemu/qemu" "" "5.1.50" && if test -e qemu-version.h; then
> printf '%s\n' qemu-version.h > qemu-version.h.stamp; fi
> "ar" csrD libqemuutil.a @libqemuutil.a.rsp
> "C:/CI-Tools/msys64/mingw64/bin/python3.exe"
> "C:/work/xemu/qemu/meson/meson.py" "--internal" "exe" "--unpickle"
> "C:/work/xemu/qemu/build/meson-private/meson_exe_python3.exe_2b18a272e12652a9e7600847543c3524867d85d7.dat"
> && if test -e block.syms; then printf '%s\n' block.syms >
> block.syms.stamp; fi
> "ar" csrD libblock.fa @libblock.fa.rsp
> "C:/CI-Tools/msys64/mingw64/bin/python3.exe"
> "C:/work/xemu/qemu/meson/meson.py" "--internal" "exe" "--unpickle"
> "C:/work/xemu/qemu/build/meson-private/meson_exe_python3.exe_269c5ec9ac7976b6693320b9cb25885f5b2f71c7.dat"
> && if test -e qemu.syms; then printf '%s\n' qemu.syms > qemu.syms.stamp; fi
> "c++" @qemu-system-ppc.exe.rsp
> 
> -- 
>          此致
> 礼
> 罗勇刚
> Yours
>     sincerely,
> Yonggang Luo