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author | Mole Shang <[email protected]> | 2024-02-14 20:46:23 +0800 |
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committer | Mole Shang <[email protected]> | 2024-02-14 20:46:23 +0800 |
commit | f98eeb30507040dc916b2a337818830954ee1d4a (patch) | |
tree | a741cb0bbd6be96d8084e72b4af895ac093a2b48 /kernel/sysinfo.c | |
parent | 0de5ac779602f562a038e5ad27163d85bc71638b (diff) | |
parent | 904885a96efd1dd0221585f67477f5a39bcce7f7 (diff) | |
download | xv6-labs-f98eeb30507040dc916b2a337818830954ee1d4a.tar.gz xv6-labs-f98eeb30507040dc916b2a337818830954ee1d4a.tar.bz2 xv6-labs-f98eeb30507040dc916b2a337818830954ee1d4a.zip |
Merge branch 'net' into lock
Conflicts:
.gitignore
Makefile
conf/lab.mk
kernel/defs.h
user/user.h
Diffstat (limited to 'kernel/sysinfo.c')
-rw-r--r-- | kernel/sysinfo.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/kernel/sysinfo.c b/kernel/sysinfo.c new file mode 100644 index 0000000..c66324d --- /dev/null +++ b/kernel/sysinfo.c @@ -0,0 +1,24 @@ +#include "types.h" +#include "riscv.h" +#include "param.h" +#include "spinlock.h" +#include "defs.h" +#include "sysinfo.h" +#include "proc.h" + +// Get current system info +// addr is a user virtual address, pointing to a struct sysinfo. +int +sys_info(uint64 addr) { + struct proc *p = myproc(); + struct sysinfo info; + + // Fill nums into the sysinfo struct + info.freemem = get_freemem(); + info.nproc = get_nproc(); + + if(copyout(p->pagetable, addr, (char *)&info, sizeof(info)) < 0) + return -1; + return 0; +} + |