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authorMole Shang <[email protected]>2024-01-18 17:35:27 +0800
committerMole Shang <[email protected]>2024-01-18 17:35:27 +0800
commit493159b9bb1a764926daa49fb09bff8f29e8e9e5 (patch)
treebcae49e20df0ab9d86dab9bd10226807cc432f88 /answers-syscall.txt
parent33ca12a4653752d179e6296c7ca2f91a626d30f3 (diff)
downloadxv6-labs-syscall.tar.gz
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lab syscall: finishsyscall
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+usertrap()
+7
+SYS_exec
+user mode
+lw a3,0(zero)
+a3
+no
+yes, `scause` 0xd -> interrupt = 0, exception code = 13 -> instruction page fault (riscv-priviledged p71)
+'initcode', 1