Subversion Repositories Kolibri OS

  ebx - SSF_MEM_ALLOC_RING (29)  

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============ Function 68, subfunction 30 - load PE-file ==============

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Parameters:

  * eax = 68 - function number

  * ebx = 30 - subfunction number

  * ecx = pointer to the string with path to file,

    rules of path forming can be found in function 70 description.

Returned value:

  * eax > 0xFFFFF000 - error, -eax = error code

  * eax <= 0xFFFFF000 - pointer to the loaded file

Remarks:

  * This function is to be called only by system loader from

    kolibri.dll; the file loaded is not ready yet, it requires further

    configuration. Use dlopen() from kolibri.dll instead of this

    function.

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=========== Function 68, subfunction 31 - unload PE-file =============

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Parameters:

  * eax = 68 - function number

  * ebx = 31 - subfunction number

  * ecx = pointer to the loaded file

Returned value:

  * eax = 0 - success

  * eax = -1 - provided address does not correspond to any loaded file

Remarks:

  * This function is to be called only by system loader from

    kolibri.dll. Use dlclose() from kolibri.dll instead of this

    function.

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===== Function 68, subfunction 32 - modify memory access rights ======

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Parameters:

  * eax = 68 - function number

  * ebx = 32 - subfunction number

  * ecx = new access rights: zero or more of the following bits:

    * PROT_READ = 1 - allow reading

    * PROT_WRITE = 2 - allow writing

    * PROT_EXEC = 4 - allow execution

  * edx = pointer to begin of memory region

  * esi = size of memory region in bytes

Returned value:

  * eax = -1 - error

  * else eax = old access rights

Remarks:

  * The function modifies access rights to whole pages (4096 bytes).

  * The function modifies access rights to all the pages intersecting

    provided memory region.

  * It is considered an error if a memory region returned by function

    68.22 is passed to this function.

  * If any part of the passed memory region is incorrect, then the

    function returns an error. However it is not guaranteed that

    access rights of the correct part have been changed.

  * If there was no error, the function returns old access rights of

    the first provided page.

  * Current implementation does not support execution access rights

    without reading rights. Therefore bit PROT_EXEC is ignored on

    entering the function, and becomes a copy of PROT_READ at exit.

---------------------- Constants for registers: ----------------------

  eax - SF_SYS_MISC (68)