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also: change panic signal to be SIGKILL as sigint being caught would
result in a loop
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also: modify log to exit status 0 on panic instead of 1 (only runs exit
on panicmode respawn which shouldn't cause a fatal termination)
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just read the note on osdev wiki that stated that input operands
shouldn't be changed, so we move both rax and the console lock to the
output operands so the compiler knows we are modifying them for our
lovely optimisation
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move spin locks to dedicated function so we can minimise repetition of
code. now uses more C and less assembly.
init.c uses 8192 * 512 as a maximum even if the stack rlimit is larger
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rearrange print to use internal vaprint to accomadate print
added additional options to vaprint (nolock, noparsecolon, etc)
use subsystem modes to accomadate restarting
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(log)
- create LOGLEVEL constant numbers
- implement CONSOLE_LOGLEVEL
- color array now uses loglevel constants
- timestamp now shown (thanks util-linux)
(init)
- register mainpid
- hello world print
- fix process reaper to refer to subsys when reaping
(subsys)
- create maximum subsystem count
- create subsystem table
- add debugging prints to subsystem entry and termination
- create function to handle process termination (unmap stack, free
subsystem malloc, clear entry in table)
- disable subsystem inception
- change die references to fail with print
- supply clone with signal to send on termination (SIGCHLD)
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sprinkle a little bit of commenting throughout the codebase. hopefully
i dont regret what i've written
- clone: bottom of stack is passed through
- print: write newline at end of message
- initcall: functions return void type
very basic net startup. hopefully i dont regret implementing the
websocket protocol myself in a language as holy as C.
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- create subsystem system using clone syscall, shared memory, shared
file descriptors
- printk-like logging facility (TODO: console loglevel)
- initcall system (like linux kernel)
TODO: determine license
factors: linker.ld, linux kernel licensing (some ideas are more
liberally taken rather than paraphrased)
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