• Sam Ravnborg's avatar
    kbuild: add verbose option to Section mismatch reporting in modpost · 588ccd73
    Sam Ravnborg authored
    If the config option CONFIG_SECTION_MISMATCH is not set and
    we see a Section mismatch present the following to the user:
    
    modpost: Found 1 section mismatch(es).
    To see additional details select "Enable full Section mismatch analysis"
    in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH).
    
    If the option CONFIG_SECTION_MISMATCH is selected
    then be verbose in the Section mismatch reporting from mdopost.
    Sample outputs:
    
    WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr
    The function  discover_ebda() references
    the variable __initdata ebda_addr.
    This is often because discover_ebda lacks a __initdata
    annotation or the annotation of ebda_addr is wrong.
    
    WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit()
    The variable pci_serial_quirks references
    the function __devexit pci_plx9050_exit()
    If the reference is valid then annotate the
    variable with __exit* (see linux/init.h) or name the variable:
    *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,
    
    WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu()
    The symbol arch_register_cpu is exported and annotated __cpuinit
    Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export.
    Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
    588ccd73
Makefile.modpost 4.43 KB