nuta

Makefile:101: recipe for target 'clean' failed
  GEN	include/version.h
  C	hal/intel64/start.o (from .S)
  C	hal/intel64/c.o (from .S)
  C	hal/intel64/handler.o (from .S)
  C	hal/intel64/init.o
  C	hal/intel64/print.o
  C	hal/intel64/cpu.o
  C	hal/intel64/gdt.o
  C	hal/intel64/idt.o

nuta

  GEN	include/version.h
  CC	hal/intel64/start.o (from .S)
  CC	hal/intel64/c.o (from .S)
  CC	hal/intel64/handler.o (from .S)
  CC	hal/intel64/init.o
  CC	hal/intel64/print.o
  CC	hal/intel64/cpu.o
  CC	hal/intel64/gdt.o
  CC	hal/intel64/idt.o
  CC	hal/intel64/tss.o

nuta

dtrace: 1467 dynamic variable drops with non-empty dirty list
SYSCALL(args) 		 = return
shm_open(0x7FFF9110ECCA, 0x0, 0x0)		 = 3 0
mmap(0x0, 0x1000, 0x1, 0x1, 0x3, 0x0)		 = 0x1053C8000 0
close_nocancel(0x3)		 = 0 0
geteuid(0x3, 0x1000, 0x1)		 = 0 0
thread_selfid(0x0, 0x0, 0x0)		 = 1935562 0
open("/Library/Ruby/Site/2.0.0/rubygems.rb\0", 0x1000000, 0x0)		 = -1 Err#2
open("/Library/Ruby/Site/2.0.0/x86_64-darwin14/rubygems.rb\0", 0x1000000, 0x0)		 = -1 Err#2
open("/Library/Ruby/Site/2.0.0/universal-darwin14/rubygems.rb\0", 0x1000000, 0x0)		 = -1 Err#2

nuta

#include <stdio.h>

static inline void _main (void){

}

typedef unsigned long long u64;
static inline u64 cycle (void){
  u64 stamp;
  __asm__ __volatile__("rdtscp; shl $32,%%rdx; or %%rdx,%%rax" : "=a"(stamp));

nuta

% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 43.39   32.368699      103414       313         2 select
 41.75   31.148654      200959       155           poll
 13.88   10.355962        4428      2339       558 futex
  0.56    0.417796           6     72348     68571 open
  0.12    0.087338           5     16358       804 lstat
  0.04    0.031954           7      4733       862 stat
  0.04    0.031695           7      4875       170 read
  0.04    0.027923           7      3774           mprotect

nuta

21669 execve("/bin/rails", ["rails", "s"], [/* 26 vars */]) = 0
21669 brk(0)                            = 0xea3000
21669 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
21669 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
21669 fstat(3, {st_mode=S_IFREG|0644, st_size=67904, ...}) = 0
21669 mmap(NULL, 67904, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f0b30e91000
21669 close(3)                          = 0
21669 open("/usr/lib/libruby.so.2.2", O_RDONLY|O_CLOEXEC) = 3
21669 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220\316\2\0\0\0\0\0"..., 832) = 832
21669 fstat(3, {st_mode=S_IFREG|0755, st_size=2541112, ...}) = 0

nuta

lwIPの移植

修正BSDライセンスでかなり良い感じのTCP/IPプロトコルスタック。 MinixもVirtualBoxも使っている様子。主な実装済みプロトコルは以下の通り。

• DNS, DHCP
• TCP, UDP
• IPv4, IPv6, ICMP
• ARP

nuta

UNIX

GNU/Hurd

Machベース。Hurd自体はMachのカーネルサーバたち。 Debian GNU/Hurd(ディスクイメージ)を試した。

Machを隠そうとはせず、POSIX APIを使いたい時にHurdのサーバを使うという雰囲気。

nuta

(seiya@seiya-cybozu-thinkpad): [master]~/libc
% make test
        LD_R    libc.o
[FAIL] functional/argv.test
Output:
GDB:
Reading symbols from functional/argv.test...done.
functional/argv.c:11: argc == 1 failed: argc should be 1

nuta

[kernel/log] DEBUG: type=alloc_memory, group=0, size=4096
[kernel/init_base] INFO: Resea v0.1-0
[kernel/log] DEBUG: type=alloc_memory, group=0, size=4096
[kernel/log] DEBUG: type=alloc_memory, group=0, size=20480
[kernel/log] DEBUG: type=alloc_memory, group=0, size=4096
[kernel/log] DEBUG: type=alloc_memory, group=0, size=4096
[kernel/log] DEBUG: type=alloc_memory, group=0, size=4096
[kernel/log] DEBUG: type=alloc_memory, group=0, size=4096
[kernel/log] DEBUG: type=new_memory_area, size=16777216
[kernel/log] DEBUG: type=alloc_memory, group=0, size=20480