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minix/servers/vm/sanitycheck.h

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Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized.
2008-11-19 13:26:10 +01:00
#ifndef _SANITYCHECK_H
#define _SANITYCHECK_H 1
let vm use physically fragmented memory for allocations. map_copy_ph_block is replaced by map_clone_ph_block, which can replace a single physical block by multiple physical blocks. also, . merge map_mem.c with region.c, as they manipulate the same data structures . NOTRUNNABLE removed as sanity check . use direct functions for ALLOC_MEM and FREE_MEM again . add some checks to shared memory mapping code . fix for data structure integrity when using shared memory . fix sanity checks
2010-04-12 13:25:24 +02:00
#include <assert.h>
Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized.
2008-11-19 13:26:10 +01:00
#include "vm.h"
#include "glo.h"
#if SANITYCHECKS
/* This macro is used in the sanity check functions, where file and
* line are function arguments.
*/
#define MYASSERT(c) do { if(!(c)) { \
printf("VM:%s:%d: %s failed\n", file, line, #c); \
panic() cleanup. this change - makes panic() variadic, doing full printf() formatting - no more NO_NUM, and no more separate printf() statements needed to print extra info (or something in hex) before panicing - unifies panic() - same panic() name and usage for everyone - vm, kernel and rest have different names/syntax currently in order to implement their own luxuries, but no longer - throws out the 1st argument, to make source less noisy. the panic() in syslib retrieves the server name from the kernel so it should be clear enough who is panicing; e.g. panic("sigaction failed: %d", errno); looks like: at_wini(73130): panic: sigaction failed: 0 syslib:panic.c: stacktrace: 0x74dc 0x2025 0x100a - throws out report() - printf() is more convenient and powerful - harmonizes/fixes the use of panic() - there were a few places that used printf-style formatting (didn't work) and newlines (messes up the formatting) in panic() - throws out a few per-server panic() functions - cleans up a tie-in of tty with panic() merging printf() and panic() statements to be done incrementally.
2010-03-05 16:05:11 +01:00
panic("sanity check failed"); } } while(0)
Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized.
2008-11-19 13:26:10 +01:00
- pages that points to page directory values of all processes, 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
2009-09-21 16:49:49 +02:00
#define SLABSANITYCHECK(l) if((l) <= vm_sanitychecklevel) { \
slab_sanitycheck(__FILE__, __LINE__); }
mark pages whose refcount were >1 and drop to 1 and are read/write writable in the pagetable right away instead of waiting for a pagefault. minor optimization. some a sanity check of SLAB-allocated pointers. vm gets its own _exit and __exit like PM, so the stock (library) panic works.
2009-04-22 14:39:29 +02:00
#define SANITYCHECK(l) if(!nocheck && ((l) <= vm_sanitychecklevel)) { \
let vm use physically fragmented memory for allocations. map_copy_ph_block is replaced by map_clone_ph_block, which can replace a single physical block by multiple physical blocks. also, . merge map_mem.c with region.c, as they manipulate the same data structures . NOTRUNNABLE removed as sanity check . use direct functions for ALLOC_MEM and FREE_MEM again . add some checks to shared memory mapping code . fix for data structure integrity when using shared memory . fix sanity checks
2010-04-12 13:25:24 +02:00
struct vmproc *vmpr; \
vm: use assert() instead of vm_assert(); remove vm_assert().
2010-04-12 14:37:28 +02:00
assert(incheck == 0); \
- pages that points to page directory values of all processes, 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
2009-09-21 16:49:49 +02:00
incheck = 1; \
usedpages_reset(); \
slab_sanitycheck(__FILE__, __LINE__); \
let vm use physically fragmented memory for allocations. map_copy_ph_block is replaced by map_clone_ph_block, which can replace a single physical block by multiple physical blocks. also, . merge map_mem.c with region.c, as they manipulate the same data structures . NOTRUNNABLE removed as sanity check . use direct functions for ALLOC_MEM and FREE_MEM again . add some checks to shared memory mapping code . fix for data structure integrity when using shared memory . fix sanity checks
2010-04-12 13:25:24 +02:00
for(vmpr = vmproc; vmpr < &vmproc[VMP_NR]; vmpr++) { \
if((vmpr->vm_flags & (VMF_INUSE | VMF_HASPT)) == \
Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized.
2008-11-19 13:26:10 +01:00
(VMF_INUSE | VMF_HASPT)) { \
let vm use physically fragmented memory for allocations. map_copy_ph_block is replaced by map_clone_ph_block, which can replace a single physical block by multiple physical blocks. also, . merge map_mem.c with region.c, as they manipulate the same data structures . NOTRUNNABLE removed as sanity check . use direct functions for ALLOC_MEM and FREE_MEM again . add some checks to shared memory mapping code . fix for data structure integrity when using shared memory . fix sanity checks
2010-04-12 13:25:24 +02:00
PT_SANE(&vmpr->vm_pt); \
Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized.
2008-11-19 13:26:10 +01:00
} \
} \
map_sanitycheck(__FILE__, __LINE__); \
vm: use assert() instead of vm_assert(); remove vm_assert().
2010-04-12 14:37:28 +02:00
assert(incheck == 1); \
- pages that points to page directory values of all processes, 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
2009-09-21 16:49:49 +02:00
incheck = 0; \
Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized.
2008-11-19 13:26:10 +01:00
}
- pages that points to page directory values of all processes, 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
2009-09-21 16:49:49 +02:00
Convert kernel over to bsdmake
2010-04-02 00:22:33 +02:00
#include "kernel/proc.h"
- pages that points to page directory values of all processes, 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
2009-09-21 16:49:49 +02:00
#define USE(obj, code) do { \
slabunlock(obj, sizeof(*obj)); \
do { \
code \
} while(0); \
slablock(obj, sizeof(*obj)); \
} while(0)
#define SLABSANE(ptr) { \
if(!slabsane_f(__FILE__, __LINE__, ptr, sizeof(*(ptr)))) { \
printf("VM:%s:%d: SLABSANE(%s)\n", __FILE__, __LINE__, #ptr); \
panic() cleanup. this change - makes panic() variadic, doing full printf() formatting - no more NO_NUM, and no more separate printf() statements needed to print extra info (or something in hex) before panicing - unifies panic() - same panic() name and usage for everyone - vm, kernel and rest have different names/syntax currently in order to implement their own luxuries, but no longer - throws out the 1st argument, to make source less noisy. the panic() in syslib retrieves the server name from the kernel so it should be clear enough who is panicing; e.g. panic("sigaction failed: %d", errno); looks like: at_wini(73130): panic: sigaction failed: 0 syslib:panic.c: stacktrace: 0x74dc 0x2025 0x100a - throws out report() - printf() is more convenient and powerful - harmonizes/fixes the use of panic() - there were a few places that used printf-style formatting (didn't work) and newlines (messes up the formatting) in panic() - throws out a few per-server panic() functions - cleans up a tie-in of tty with panic() merging printf() and panic() statements to be done incrementally.
2010-03-05 16:05:11 +01:00
panic("SLABSANE failed"); \
- pages that points to page directory values of all processes, 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
2009-09-21 16:49:49 +02:00
} \
}
Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized.
2008-11-19 13:26:10 +01:00
#else
#define SANITYCHECK
- pages that points to page directory values of all processes, 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
2009-09-21 16:49:49 +02:00
#define SLABSANITYCHECK(l)
#define USE(obj, code) do { code } while(0)
#define SLABSANE(ptr)
Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized.
2008-11-19 13:26:10 +01:00
#endif
#endif
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