Messages in this thread |  | | Date | Fri, 08 Dec 2000 12:13:24 -0500 | From | Peng Dai <> | Subject | System.map with symbols from discarded sections |
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Quite a few functions in the 2.3 kernels and up are marked as __exit. This puts the functions in the .text.exit section that is marked as DISCARD in vmlinux.lds.
It turns out that if the function is static, ld never puts it into the symbol table of vmlinux; however, if the function is global, ld throws it into the *ABS* section of vmlinux with an address most likely lower than PAGE_OFFSET. These symbols are included in System.map since they are not 'a' type but 'A' type. An example of which is 'acpi_exit', as shown below,
00000000 A acpi_exit c0100000 A _text c0100000 t startup_32 c0100000 T _stext ...
It seems rather harmless except it breaks the readprofile utitlity which reads the System.map. I am wondering if ld is behaving correctly.
Regards, Peng
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