Messages in this thread | | | Date | Mon, 29 Apr 2002 08:35:14 -0400 | From | "V. Guruprasad" <> | Subject | difficulty with symbol export |
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Hi all,
Just playing with the kernel code, I added a silly function
struct file_operations *get_socket_fileops () { return &socket_file_ops; }
at the bottom of net/socket.c, and
EXPORT_SYMBOL(get_socket_fileops);
into net/netsyms.c, expecting to be able to call this function from a loadable module and to printk the function addresses from the file_operations struct.
However, on rebooting into this modified kernel, my test module fails to load, saying
foo.o: unresolved symbol get_socket_fileops
even though the symbol looks exported in vmlinux (nm) and in /boot/System.map:
c020ca90 T get_socket_fileops 0c2b52bf ? __kstrtab_get_socket_fileops 0c2ba358 ? __ksymtab_get_socket_fileops
which looks exactly like sock_create, which the module *is* able to address.
Any pointers?
thanks, -prasad.
------------------------ V. Guruprasad ('prasad'), http://www.columbia.edu/~vg96 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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