Imbus/xv6-riscv-kernel
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i/o redirection in sh

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better parsing of sh commands (copied from jos sh)
cat: read from 1 if no args
sbrk system call, but untested
getpid system call
moved locks in keyboard intr, but why do we get intr w. null characters from keyboard?
This commit is contained in:
kaashoek 2006-08-23 01:09:24 +00:00
parent f18ab5c04e
commit 8b58e81077
15 changed files with 433 additions and 74 deletions
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@ -131,3 +131,11 @@ maybe get rid of per-proc gdt and ts
one per cpu
refresh it when needed
setupsegs(proc *)
why do we get 0 characters from keyboard?
are the locks in the right place in keyboardintr?
sh: support pipes? leave it for the class?
sh: dynamic memory allocation?
sh: should sh support ; () & --- need malloc
sh: stop stdin on ctrl-d (for cat > y)