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2141 6267 d 21 h jermar /trunk/ The Ultimate Solution To Illegal Virtual Aliases.
It is better to avoid them completely than to fight them.
Switch the sparc64 port to 16K pages. The TLBs and TSBs
continue to operate with 8K pages only. Page tables and
other generic parts operate with 16K pages.

Because the MMU doesn't support 16K directly, each 16K
page is emulated by a pair of 8K pages. With 16K pages,
illegal aliases cannot be created in 16K D-cache.
 
2139 6267 d 22 h decky /trunk/contrib/toolchain/ move to GCC 4.1.2, make scripts really host platform independent
remove orphaned libobjc
 
2138 6268 d 0 h decky /trunk/contrib/toolchain/ revert previous change (libobjc is actually HOST platform dependent)  
2134 6269 d 1 h jermar /trunk/kernel/ Reworked handling of illegal virtual aliases caused by frame reuse.
We moved the incomplete handling from backend's frame method to
backend's page_fault method. The page_fault method is the one that
can create an illegal alias if it writes the userspace frame using
kernel address with a different page color than the page to which is
this frame mapped in userspace. When we detect this, we do D-cache
shootdown on all processors (!!!).

If we add code that accesses userspace memory from kernel address
space, we will have to check for illegal virtual aliases at all such
places.

I tested this on a 4-way simulated E6500 and a real-world Ultra 5,
which has unfortunatelly only one processor.

This solves ticket #26.
 
2133 6269 d 1 h jermar /trunk/kernel/generic/src/mm/ Coding style and indentation fixes.  
2132 6270 d 8 h jermar /trunk/kernel/generic/src/mm/ Fix coding style in the address space area backends.  
2129 6304 d 0 h jermar /trunk/ Fix small problem in sparc64 port.

Bump version to 0.2.0.4 (Sunset).
 
2128 6311 d 1 h jermar /trunk/ Add arm32 architecture. The 32 suffix is used to specify that 16-bit Thumb
instructions are not used. The arm32 code is mostly composed of placeholders
that need to be replaced by real implementation. So far, the arm32 tree
only compiles. If run under GXEmul simulator, an infinit loop at the
kernel entry point will be entered.
 
2127 6311 d 11 h decky /trunk/kernel/generic/src/lib/ add forgotten implementation  
2126 6311 d 22 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6312 d 0 h decky /trunk/ experimental support for Objective C
(disabled by default)
 
2124 6312 d 2 h decky /trunk/kernel/generic/ implement simple realloc()  
2123 6318 d 5 h decky /trunk/kernel/generic/src/mm/ add forgotten unsigned  
2122 6318 d 5 h decky /trunk/kernel/generic/ explicit typecast, fix signed/unsigned comparison  
2121 6318 d 5 h decky /trunk/kernel/generic/src/mm/ remove anonymous structure, add static qualifier  
2120 6318 d 5 h decky /trunk/kernel/generic/include/syscall/ specify syscall handler arguments  
2119 6318 d 5 h decky /trunk/kernel/generic/src/syscall/ explicit typecast  
2118 6318 d 5 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
2117 6318 d 6 h decky /trunk/kernel/generic/src/ddi/ explicit typecast  
2116 6318 d 6 h decky /trunk/kernel/generic/src/ddi/ explicit typecast  
2115 6318 d 6 h decky /trunk/kernel/generic/src/cpu/ fix signed/unsigned comparison  
2114 6318 d 6 h decky /trunk/kernel/generic/src/console/ explicit typecast  
2113 6318 d 8 h decky /trunk/kernel/generic/src/console/ explicit typecast, fix signed/unsigned comparison  
2112 6318 d 8 h decky /trunk/kernel/generic/src/adt/ explicit typecast, fix signed/unsigned comparison  
2111 6318 d 8 h decky /trunk/kernel/generic/src/adt/ fix signed/unsigned comparison  
2110 6318 d 23 h jermar /trunk/kernel/arch/ia64/ Minor cleanup in ia64.  
2109 6319 d 9 h jermar /trunk/kernel/generic/ Revert thread_interrupt_sleep() to waitq_interrupt_sleep().
I'd prefer that this, IMO, waitq related stuff stays together.
 
2108 6319 d 9 h jermar /trunk/kernel/generic/src/console/ Cleanup kconsole.c  
2107 6319 d 23 h jermar /trunk/ When clock() is called by an external interrupt dispatched by the IRQ dispatcher,
no spinlock can be held or the kernel will not be preemptive. This fixes Ticket #24.

Formating and indentation fixes.
 
2106 6320 d 7 h jermar /trunk/kernel/ Merge as_t structure into one and leave the differring parts in as_genarch_t.

Indentation and formatting changes in header files.
 
2105 6324 d 8 h decky /trunk/kernel/ move ipc structures to ipc.h  
2104 6324 d 9 h decky /trunk/kernel/generic/src/lib/ more fine order of magnitude display  
2103 6325 d 1 h decky /trunk/kernel/generic/include/ move timeout_t to timeout.h
move other helper types to thread.h
 
2102 6325 d 1 h decky /trunk/kernel/genarch/src/fb/ signed/unsigned comparison, explicit typecast  
2101 6325 d 1 h decky /trunk/kernel/ fix signed/unsigned comparison and integer overflow  
2100 6325 d 2 h decky /trunk/kernel/ signed/unsigned comparison, explicit typecast  
2099 6325 d 2 h decky /trunk/kernel/arch/ia32/src/ explicit cast on pointer arithmetic  
2098 6325 d 2 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2097 6325 d 2 h decky /trunk/kernel/arch/ia32/src/smp/ fix signed/unsigned comparison  
2096 6325 d 3 h decky /trunk/kernel/generic/include/ move thread_t to thread.h