Messages in this thread | | | Date | Tue, 19 Jun 2007 13:59:53 +0200 | From | John Sigler <> | Subject | Dumping the checksums in a module |
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Hello everyone,
As far as I understand (which is not very far), if I define CONFIG_MODVERSIONS, then checksums for various functions (all exported functions?) and various structures (which ones?) will be included inside the kernel image, and written to Module.symvers. When an out-of-tree module is built, it will *also* include these checksums.
How do I list ALL the checksums within a module?
$ /sbin/modinfo -V module-init-tools version 3.2.2
$ uname -a Linux venus 2.6.18.6 #1 PREEMPT Thu Feb 8 18:04:49 CET 2007 i686 pentium4 i386 GNU/Linux
$ /sbin/modinfo test.ko filename: test.ko vermagic: 2.6.20.7-rt8 preempt mod_unload PENTIUMIII REGPARM depends: parm: pConfig_file:charp parm: allocator_himem:An integer (int) parm: EnableIdleMode:An integer (int) parm: Board_ID:An integer (int) parm: Diagnostic:An integer (int)
$ hexdump -C test.ko | grep -A2 struct_ 000752e0 17 98 07 0e 73 74 72 75 63 74 5f 6d 6f 64 75 6c |....struct_modul| 000752f0 65 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |e...............| 00075300 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
I think this means that, in this module, the checksum for symbol struct_module is 0x1798070e, right?
Is there a simpler way to list all the checksums?
Regards.
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