Messages in this thread | | | Date | Tue, 4 Dec 2001 09:47:01 -0800 (PST) | From | <> | Subject | Re: Insmod problems |
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On Tue, 4 Dec 2001, Michael Zhu wrote:
| I've define these two when I compile the module. The | command line is: | | gcc -D_KERNEL_ -DMODULE -c hello.c
Check the spelling of "__KERNEL__".
~Randy
| --- Tyler BIRD <BIRDTY@uvsc.edu> wrote: | > You need to define the __KERNEL__ and MODULE symbols | > | > #define __KERNEL__ | > #define MODULE | > | > | > >>> Nav Mundi <nmundi@karthika.com> 12/04/01 09:33AM | > >>> | > What are we doing wrong? - Nav & Michael | > ************************************************** | > | > hello.c Source: | > | > #include "/home/mzhu/linux/include/linux/config.h" | > /*retrieve the CONFIG_* macros */ | > #if defined(CONFIG_MODVERSIONS) && | > !defined(MODVERSIONS) | > #define MODVERSIONS /* force it on */ | > #endif | > | > #ifdef MODVERSIONS | > #include | > "/home/mzhu/linux/include/linux/modversions.h" | > #endif | > | > #include "/home/mzhu/linux/include/linux/module.h" | > | > int init_module(void) { printk("<1>Hello, | > world\n"); return 0; } | > void cleanup_module(void) { printk("<1>Goodbye cruel | > world\n"); } | > | > Output: | > | > #>gcc -D_KERNEL_ -DMODULE -c hello.c | > | > [This builds the hello.o file. ] | > | > #>insmod hello.o | > | > hello.o : unresolved symbol printk | > hello.o : Note: modules without a GPL compatible | > license cannot use | > GPONLY_symbols
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