Messages in this thread | | | Subject | Re: kbuild: Section mismatch warnings | From | Nicholas Miell <> | Date | Fri, 17 Feb 2006 16:14:59 -0800 |
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On Sat, 2006-02-18 at 00:38 +0100, Sam Ravnborg wrote: > Hi Adrian > > > > I did not find a way to look up the offending symbol but maybe some elf > > > expert can help? > > >... > > > > I'm not an ELF expert, but simply checking all __init functions in this > > files finds that this seems to be the following: > > > > <-- snip --> > > > > ... > > static struct acpi_driver asus_hotk_driver = { > > .name = ACPI_HOTK_NAME, > > .class = ACPI_HOTK_CLASS, > > .ids = ACPI_HOTK_HID, > > .ops = { > > .add = asus_hotk_add, > > .remove = asus_hotk_remove, > > }, > > }; > > ... > > static int __init asus_hotk_add(struct acpi_device *device) > > ... > > > Correct. > What I wanted was modpost to tell that the symbol being referenced in > the .data section was 'asus_hotk_add' and not just an offset after > asus_hotk_driver. > > What is needed is a link from the RELOCATION RECORD to the symbol table.
The r_info field of Elf{32,64}_Rel{,a} contains an index into the symbol table which can be extracted using the ELF{32,64}_R_SYM() macro.
-- Nicholas Miell <nmiell@comcast.net>
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