32fbbd370c
shared with the kernel, mapped into kernel address space; kernel is notified of its location. kernel segment size is increased to make it fit. - map in kernel and other processes that don't have their own page table using single 4MB (global) mapping. - new sanity check facility: objects that are allocated with the slab allocator are, when running with sanity checking on, marked readonly until they are explicitly unlocked using the USE() macro. - another sanity check facility: collect all uses of memory and see if they don't overlap with (a) eachother and (b) free memory - own munmap() and munmap_text() functions. - exec() recovers from out-of-memory conditions properly now; this solves some weird exec() behaviour - chew off memory from the same side of the chunk as where we start scanning, solving some memory fragmentation issues - use avl trees for freelist and phys_ranges in regions - implement most useful part of munmap() - remap() stuff is GQ's for shared memory
30 lines
491 B
C
30 lines
491 B
C
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#include <minix/sys_config.h>
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#include <sys/stat.h>
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#include <a.out.h>
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#include <tools.h>
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#include "vm.h"
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#include "vmproc.h"
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#if _MAIN
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#undef EXTERN
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#define EXTERN
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#endif
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#define VMP_SYSTEM _NR_PROCS
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#define VMP_EXECTMP _NR_PROCS+1
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#define VMP_NR _NR_PROCS+2
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EXTERN struct vmproc vmproc[VMP_NR];
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#if SANITYCHECKS
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EXTERN int nocheck;
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EXTERN int incheck;
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EXTERN long vm_sanitychecklevel;
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#endif
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/* vm operation mode state and values */
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EXTERN long vm_paged;
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EXTERN int meminit_done;
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