The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/libkern/kmod/

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Name Size Last modified (GMT) Description
Back Parent directory 2009-01-21 22:31:04
File Makefile 1222 bytes 2006-03-28 20:57:40
File Makefile.kmod 1902 bytes 2006-03-28 20:57:40
File README 1295 bytes 2006-03-28 20:57:40
C file c_start.c 2547 bytes 2006-03-28 20:57:26
C file c_stop.c 2545 bytes 2006-03-28 20:57:26
C file cplus_start.c 2791 bytes 2006-03-28 20:57:26
C file cplus_stop.c 2783 bytes 2006-03-28 20:57:26

    1 #
    2 # Subtle combination of files and libraries make up the C++ runtime system for
    3 # kernel modules.  We are dependant on the KernelModule kmod.make and
    4 # CreateKModInfo.perl scripts to be exactly instep with both this library
    5 # module and the libkmod module as well.
    6 #
    7 # If you do any maintenance on any of the following files make sure great
    8 # care is taken to keep them in Sync.
    9 #    extenTools/KernelModule.bproj/kmod.make
   10 #    extenTools/KernelModule.bproj/CreateKModInfo.perl
   11 #    IOKitUser/kmodc++/pure.c
   12 #    IOKitUser/kmodc++/cplus_start.c
   13 #    IOKitUser/kmodc++/cplus_start.c
   14 #    IOKitUser/kmodc/c_start.c
   15 #    IOKitUser/kmodc/c_stop.c
   16 #
   17 # The trick is that the linkline links all of the developers modules.
   18 # If any static constructors are used .constructors_used will be left as
   19 # an undefined symbol.  This symbol is exported by the cplus_start.c routine
   20 # which automatically brings in the appropriate C++ _start routine.  However
   21 # the actual _start symbol is only required by the kmod_info structure that
   22 # is created and initialized by the CreateKModInfo.perl script.  If no C++
   23 # was used the _start will be an undefined symbol that is finally satisfied
   24 # by the c_start module in the kmod library.
   25 # 
   26 # The linkline must look like this.
   27 #    *.o -lkmodc++ kmod_info.o -lkmod
   28 #

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