交叉编译qemu for android错误

Question

我正在使用 ndk-10e 编译 qemu2.5.0。我已经成功地为 android 编译了 glib。我的配置命令是这样的：

PKG_CONFIG_PATH="$SYSROOT/usr/lib/pkgconfig" ./configure -- 
prefix="$SYSROOT/usr" --target-list=arm-linux-user --disable-system -- 
disable-bsd-user --disable-tools --disable-zlib-test --cross- 
prefix="arm-linux-androideabi-" --cc="$NDK/toolchains/arm-linux- 
androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc" - 
-host-cc="$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux- 
x86_64/bin/arm-linux-androideabi-gcc" --cpu="arm" -- 
cxx="$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux- 
x86_64/bin/arm-linux-androideabi-g++" --extra-ldflags="-fPIE -pie -- 
sysroot $SYSROOT -L$NDK/toolchains/arm-linux-androideabi- 
4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9/ - 
L$NDK/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi/ - 
L$NDK/platforms/android-21/arch-arm/usr/lib" --extra-cflags="-fPIE - 
pie --sysroot $SYSROOT -I$NDK/sources/cxx-stl/gnu- 
libstdc++/4.9/include -I$NDK/sources/cxx-stl/gnu- 
libstdc++/4.9/libs/armeabi/include -L$NDK/sources/cxx-stl/gnu- 
libstdc++/4.9/libs/armeabi/" --disable-guest-agent

当我输入“make”时，它给了我这个错误。

> CHK 版本_gen.h CC arm-linux-user/linux-user/syscall.o /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:374:16：错误：“gettid”的静态声明遵循非静态声明 _syscall0(int, gettid) ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:303:13：注意：在宏'_syscall0'的定义中 静态类型名称 (void) \ ^ 在 /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:27:0 包含的文件中： /home/sam/Documents/android-ndk-r10e/platforms/android-21/arch-arm/usr/include/unistd.h:57:15：注意：以前的“gettid”声明在这里 extern pid_t gettid(void) __pure2; ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数“gettid”中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:374:1：警告：函数'syscall'的隐式声明[-Wimplicit-function-declaration] _syscall0(int, gettid) ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:374:1：警告：“系统调用”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'lock_iovec'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:2050:30: error: 'IOV_MAX' undeclared (第一次在这个函数中使用) 如果（计数 IOV_MAX）{ ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:2050:30：注意：每个未声明的标识符对于它出现的每个函数只报告一次 /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'target_to_host_ipc_perm'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:2703:12：错误：“struct ipc_perm”没有名为“__key”的成员 host_ip->__key = tswap32(target_ip->__key); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:2716:12：错误：“struct ipc_perm”没有名为“__seq”的成员 host_ip->__seq = tswap16(target_ip->__seq); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'host_to_target_ipc_perm'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:2731:39：错误：“struct ipc_perm”没有名为“__key”的成员 target_ip->__key = tswap32(host_ip->__key); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:2744:39：错误：“struct ipc_perm”没有名为“__seq”的成员 target_ip->__seq = tswap16(host_ip->__seq); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在顶层： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:2815:7：错误：重新定义'union semun' 工会semun { ^ 在 /home/sam/Documents/android-ndk-r10e/platforms/android-21/arch-arm/usr/include/sys/sem.h:32:0 包含的文件中， 来自/home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:59： /home/sam/Documents/android-ndk-r10e/platforms/android-21/arch-arm/usr/include/linux/sem.h:55:7：注意：最初定义在这里 工会semun { ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'target_to_host_semarray'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:2840:5：警告：函数'semctl'的隐式声明[-Wimplicit-function-declaration] ret = semctl(semid, 0, IPC_STAT, semun); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:2840:5：警告：'semctl'的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'do_semop'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3002:5：警告：函数'semop'的隐式声明[-Wimplicit-function-declaration] 返回 get_errno(semop(semid, sops, nsops)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3002:5：警告：“semop”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'target_to_host_msqid_ds'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3041:12：错误：“struct msqid_ds”没有名为“__msg_cbytes”的成员 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'host_to_target_msqid_ds'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3062:46：错误：“struct msqid_ds”没有名为“__msg_cbytes”的成员 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'do_msgctl'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3114:9：警告：函数'msgctl'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(msgctl(msgid, cmd, &dsarg)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3114:9：警告：“msgctl”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'do_msgsnd'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3157:5：警告：函数'msgsnd'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3157:5：警告：“msgsnd”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'do_msgrcv'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3177:5：警告：函数'msgrcv'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3177:5：警告：“msgrcv”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'do_shmctl'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3302:9：警告：函数'shmctl'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(shmctl(shmid, cmd, &dsarg)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3302:9：警告：'shmctl'的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'do_shmat'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3343:9：警告：函数'shmat'的隐式声明[-Wimplicit-function-declaration] host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3343:9：警告：“shmat”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3343:20：警告：赋值使指针从整数而不进行强制转换 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3353:24：警告：赋值使指针从整数而不进行强制转换 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'do_shmdt'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3391:5：警告：函数“shmdt”的隐式声明[-Wimplicit-function-declaration] 返回 get_errno(shmdt(g2h(shmaddr))); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3391:5：警告：“shmdt”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'do_ipc'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3413:9：警告：函数'semget'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(semget(第一，第二，第三))； ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3413:9：警告：'semget'的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3426:9：警告：函数'msgget'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(msgget(first, second)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3426:9：警告：“msgget”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3484:2：警告：函数'shmget'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(shmget(第一，第二，第三))； ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:3484:2：警告：“shmget”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c：在函数'do_syscall'中： /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:6241:13：警告：函数“时间”的隐式声明 [-Wimplicit-function-declaration] ret = get_errno(stime(&host_time)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:6241:13：警告：“时间”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:6318:13：警告：函数'futimesat'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(futimesat(arg1, path(p), tvp)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:6318:13：警告：“futimesat”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:6686:13：警告：函数'sigorset'的隐式声明[-Wimplicit-function-declaration] sigorset(&set, &set, &cur_set); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:6686:13：警告：'sigorset'的嵌套外部声明[-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:6870:13：警告：函数'sigtimedwait'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(sigtimedwait(&set, &uinfo, puts)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:6870:13：警告：“sigtimedwait”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:6908:9：警告：函数'sethostname'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(sethostname(p, arg2)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:6908:9：警告：“sethostname”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:7627:9：警告：函数'vhangup'的隐式声明[-Wimplicit-function-declaration] ret = get_errno(vhangup()); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:7627:9：警告：'vhangup'的嵌套外部声明[-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:7794:9：警告：函数“setdomainname”的隐式声明 [-Wimplicit-function-declaration] ret = get_errno(setdomainname(p, arg2)); ^ /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:7794:9：警告：“setdomainname”的嵌套外部声明 [-Wnested-externs] /home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:9280:9：警告：函数“预读”的隐式声明 [-Wimplicit-function-declaration] ret = get_errno(readahead(arg1, ((off64_t)arg3

有一些奇怪的东西，比如

/home/sam/Documents/qemu-2.5.0/linux-user/syscall.c:2703:12：错误：“struct ipc_perm”没有名为“__key”的成员 host_ip->__key = tswap32(target_ip->__key); 我不知道如何解决它。有人可以帮忙吗？

Answer 1

这将是：

• 2.5 是一个相当老的 QEMU 版本；您可能会在使用上游已修复的较新/不同版本的 libc 进行编译时遇到错误。从使用较新的版本开始。
• 您正在针对 Android libc (bionic) 构建，它不是经过测试或支持构建的 libc。如果它与 glibc（标准 Linux libc）相比存在差异或特性，您需要更改 QEMU 以解决这些问题。

例如，关于 __key 的错误，问题在于 Bionic 在 struct ipc_perm 中将该字段的版本命名为“key”，而不是“__key”。