On Thu, 2003-11-13 at 14:28, Daniel Jacobowitz wrote:
> On Thu, Nov 13, 2003 at 01:50:58PM -0700, Alex Tsariounov wrote:
> > Are you saying that it is not and should not be used then?
>
> Libc provides the function, as a convenience, esp. for architectures
> where the _syscall macros in <asm/unistd.h> can't be directly used.
>
> However, it does not provide a prototype or associated definitions.
> Which is what I said.
Well, this is why I said it was philosophical. My root question would
be: is the system call query_module() (along with it's relatives
init_module, create_module, delete_module - although they are less
important here since you need to be root to use them) a public
interface?
If it is, then I would suggest it needs an include file which prototypes
its use and supplies any needed constants/definitions.
For my case now, and hence this bug, I've decided to quit using the
query_module() function because of the fud (it's not the first time it's
been a problem). I've also attached below the example code that I used
to open this bug modified to use a different method to determine if a
module is loaded for those who are monitoring this bug stream.
By using this other method (and hence not including linux/module.h), my
build builds again.
Thanks,
Alex Tsariounov
-----8<----- Compile this:
#include <stdio.h>
main(int argc, char *argv[])
{
FILE *fp;
char line[4096];
if (argc<2) {
printf("Usage: %s module_name\n", argv[0]);
exit(1);
}
fp = fopen("/proc/modules", "r");
if (!fp) {
perror("Opening /proc/modules");
exit(1);
}
while (fgets(line, sizeof(line), fp)) {
if (strncmp(line, argv[1], strlen(argv[1])) == 0) {
printf("Found %s loaded in kernel\n", argv[1]);
exit (0);
}
}
printf("Can't find module %s in kernel\n", argv[1]);
return 1;
exit(0);
}
-----8<--------8<-------
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