在编译Tom3q所写s3c6410 android 图形驱动模块(g2d,g3d)时,遇到如下错误
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[aliang@Eadith g2d]$ make KDIR=~/source/Android/linux-2.6.36-android/ make --no-print-directory -C /home/aliang/source/Android/linux-2.6.36-android/ SUBDIRS=/home/aliang/source/openfimg/modules/g2d modules CC [M] /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.o In file included from /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c:46:0: arch/arm/plat-samsung/include/plat/pm.h:104:39: warning: 'struct sys_device' declared inside parameter list arch/arm/plat-samsung/include/plat/pm.h:104:39: warning: its scope is only this definition or declaration, which is probably not what you want arch/arm/plat-samsung/include/plat/pm.h:105:38: warning: 'struct sys_device' declared inside parameter list /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c: In function 's3c_g2d_open': /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c:783:2: <span style="color: #ff0000;">error: implicit declaration of function 'kmalloc'</span> /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c:783:6: warning: assignment makes pointer from integer without a cast /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c: In function 's3c_g2d_release': /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c:806:2: <span style="color: #ff0000;">error: implicit declaration of function 'kfree'</span> /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c: At top level: /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c:817:2: <span style="color: #ff0000;">error: unknown field 'ioctl' specified in initializer</span> /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c:817:2: warning: initialization from incompatible pointer type /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c: In function 's3c_g2d_probe': /home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.c:837:7: warning: assignment makes pointer from integer without a cast make[2]: *** [/home/aliang/source/openfimg/modules/g2d/s3c_g2d_driver.o] 错误 1 make[1]: *** [_module_/home/aliang/source/openfimg/modules/g2d] 错误 2 make: *** [all] 错误 2 |
红字部分是主要错误，“kmalloc”，“kfree”错误是由于缺少头文件引起的
#include <linux/slab.h>
添加后解决
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<span style="color: #ff0000;">error: unknown field 'ioctl' specified in initializer</span> |
问题是由于2.6.36内核之后 去掉了原来的ioctl，添加两个新的成员，所以会出错
- long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
- long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
所以修改源文件中file_operations内
.ioctl 改为 .compat_ioctl 即可
OK，编译通过，警告咱就忽略了?:mrgreen:
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本文链接地址: 编译Openfime G2D，G3D内核模块时的错误解决方法