diff options
Diffstat (limited to 'kernel/syscall.c')
| -rw-r--r-- | kernel/syscall.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/syscall.c b/kernel/syscall.c index ff10f9c..a054da2 100644 --- a/kernel/syscall.c +++ b/kernel/syscall.c @@ -2,6 +2,7 @@ #include "param.h" #include "memlayout.h" #include "riscv.h" +#include "spinlock.h" #include "proc.h" #include "syscall.h" #include "defs.h" @@ -170,7 +171,9 @@ dosyscall(void) num = p->tf->a7; if(num > 0 && num < NELEM(syscalls) && syscalls[num]) { + //printf("%d: syscall %d\n", p->pid, num); p->tf->a0 = syscalls[num](); + //printf("%d: syscall %d -> %d\n", p->pid, num, p->tf->a0); } else { printf("%d %s: unknown sys call %d\n", p->pid, p->name, num); |