Imbus/xv6-riscv-kernel
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swtch saves callee-saved registers

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swtch idles on per-CPU stack, not on calling process's stack
fix pipe bugs
usertest.c tests pipes, fork, exit, close
This commit is contained in:
rtm 2006-07-01 21:26:01 +00:00
parent f7cea12b38
commit 8b4e2a08fe
14 changed files with 220 additions and 63 deletions
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1
syscall.h
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@ -5,3 +5,4 @@
#define SYS_pipe 5
#define SYS_write 6
#define SYS_read 7
#define SYS_close 8