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14 Commits

Author SHA1 Message Date
Jonas 'Sortie' Termansen 2135a2d432 Improve assertions in malloc. 
This also uses the user-space available <assert.h> header.
 2012-09-08 18:45:53 +02:00
Jonas 'Sortie' Termansen bff1abda2e Thread secured the kernel heap. 2012-08-04 18:35:22 +02:00
Jonas 'Sortie' Termansen 22990b77b8 Refactored the internal kernel memory management API. 
It is now permission-oriented, not just user/kernel oriented.

Added <sys/mman.h> with nice PROT_{READ,WRITE,EXEC,FORK} constants.
 2012-07-06 17:18:07 +02:00
Jonas 'Sortie' Termansen db79994e64 Refactored all the sortix headers into a include directory. 
Also got rid of trailing white space. That corrupted .git/.

Big ass-commit because of recovered .git directory.
 2012-03-22 00:52:29 +01:00
Jonas 'Sortie' Termansen cde10097e6 Fixed realloc(3) bug causing buffer overruns. 2012-03-07 20:52:44 +01:00
Jonas 'Sortie' Termansen 3bf5b1f17e Added realloc(3). 2012-02-13 00:31:05 +01:00
Jonas 'Sortie' Termansen fec176fa15 Refactored the libmaxsi/ directory. 
C and C++ files are now kept together and so are the mxmpp declarations.

Header files are now stored in include/ and mxmpp'd into preproc/.

All other code now -I ../libmaxsi/preproc.

And other stuff to make this happen, including refactoring Makefile.
 2012-02-12 13:20:53 +01:00
Jonas 'Sortie' Termansen f29f6dd053 ValidateHeap is now only called when PARANOIA is at least 2. 
This speeds up memory allocations from O(N) to O(1) by default.
 2012-01-20 23:22:12 +01:00
Jonas 'Sortie' Termansen 4841d83ff8 Added calloc(3). 2011-12-24 04:05:38 +01:00
Jonas 'Sortie' Termansen 0515111314 The initial ramdisk is now mapped onto a special location. 
This fixes issues where it did not fit into the first few MiB,
or that GRUB loaded it someplace weird.

The kernel heap is now also protected against growing into the
ramdisk and the kernel stack.
 2011-12-22 14:13:18 +01:00
Jonas 'Sortie' Termansen acf1eebc98 Added user-space memory allocation. 2011-12-16 13:24:49 +01:00
Jonas 'Sortie' Termansen 5bc05c4e0e Moved around comments in heap.cpp. 2011-12-04 20:59:42 +01:00
Jonas 'Sortie' Termansen c0c20860ed Lots of improvements to 64-bit Sortix. 
Fixed 64-bit-ness bug in BSR() and BSF().
Added 64-bit system call stubs in libmaxsi.
Added a Elf64 program loader.
Fixed uninitialized memory bug in the scheduler.
x64/boot.s now takes care of user-space memory permissions.
Fixed bug in x64/syscall.s

That's right. The system now boots in 64-bit mode.

It is horribly unstable, though.
 2011-12-01 10:45:44 +01:00
Jonas 'Sortie' Termansen 6781308360 Rewrote the memory allocation functions. 
free(3) can now unify unused neighbor blocks, reducing mem usage.
 2011-11-27 22:53:05 +01:00