Imbus/xv6-riscv-kernel
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Frans Kaashoek 2019-07-17 05:53:34 -04:00
parent 2f22a3ed6a
commit ce53416f49
1 changed files with 0 additions and 6 deletions
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6
kernel/syscall.c
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@ -7,12 +7,6 @@
#include "syscall.h" #include "syscall.h"
#include "defs.h" #include "defs.h"
// User code makes a system call with INT T_SYSCALL.
// System call number in %eax.
// Arguments on the stack, from the user call to the C
// library system call function. The saved user %esp points
// to a saved program counter, and then the first argument.
// Fetch the int at addr from the current process. // Fetch the int at addr from the current process.
int int
fetchint(uint64 addr, int *ip) fetchint(uint64 addr, int *ip)