DLang 编译实验

一直在寻找一个可以编译运行又有脚本语言便利性的语言。

我要的是编译后可以到处运行（相同OS），我非常讨厌，很多语言，还需要在OS 安装一个环境才能运行

如：Java

D语言是由Digital Mars公司开发的编程语言，起因是为了改进C＋＋。它与C二进制兼容（不完全），可编译为本地码，有GC也可手动管理内存，语法上借鉴多种语言，模板则在C＋＋的基础上做了相当大的扩充。D 语言既有 C 语言的强大威力，又有 Python 和 Ruby 的开发效率。它是一种集垃圾回收、手工内存操作、契约式设计、高级模板技术、内嵌汇编、内置单元测试、Mixin 风格多继承、类 Java 包管理机制、内置同步机制、内建基本运行时信息的系统级编程语言。

我做了一下测试，D语言满足我的需求

安装

Java代码

$ wget http://ftp.digitalmars.com/dmd_2.057-0_amd64.deb
$ sudo apt-get install libc6-dev
$ sudo dpkg -i dmd_2.057-0_amd64.deb

C代码

$ cat hello.d
#!/usr/bin/rdmd
import std.stdio;
void main() {
writeln("Hello, world!");
}

C代码

$ ./hello.d
Hello, world!

编译测试

Java代码

$ dmd hello.d
$ dmd hello.d
Hello, world!

将编译后的hello文件复制到其他机器上（注：没有安装dmd环境，一台全新安装CentOS 5.6 的机器）

Java代码

scp hello root@172.16.1.3:/tmp
ssh root@172.16.1.3
cd /tmp
./hello

Java代码

Hello,world!

在新机器上运行成功，表示D语言使用的是GLibc 库，不依赖dmd环境，也可能是静态编译，将dmd 速要的库编译进了hello文件

Java代码

$ strace ./hello
execve("./hello", ["./hello"], [/* 20 vars */]) = 0
brk(0) = 0x12fc000
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa6436de000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=33668, ...}) = 0
mmap(NULL, 33668, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fa6436d5000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libpthread.so.0", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360Y\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=135745, ...}) = 0
mmap(NULL, 2212736, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fa6432a4000
mprotect(0x7fa6432bc000, 2093056, PROT_NONE) = 0
mmap(0x7fa6434bb000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17000) = 0x7fa6434bb000
mmap(0x7fa6434bd000, 13184, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fa6434bd000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libm.so.6", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360>\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=534832, ...}) = 0
mmap(NULL, 2629864, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fa643021000
mprotect(0x7fa6430a3000, 2093056, PROT_NONE) = 0
mmap(0x7fa6432a2000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x81000) = 0x7fa6432a2000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/librt.so.1", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220!\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=31744, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa6436d4000
mmap(NULL, 2128848, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fa642e19000
mprotect(0x7fa642e20000, 2093056, PROT_NONE) = 0
mmap(0x7fa64301f000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7fa64301f000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\355\1\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1572232, ...}) = 0
mmap(NULL, 3680296, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fa642a96000
mprotect(0x7fa642c10000, 2093056, PROT_NONE) = 0
mmap(0x7fa642e0f000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x179000) = 0x7fa642e0f000
mmap(0x7fa642e14000, 18472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fa642e14000
close(3) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa6436d3000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa6436d1000
arch_prctl(ARCH_SET_FS, 0x7fa6436d19c0) = 0
mprotect(0x7fa642e0f000, 16384, PROT_READ) = 0
mprotect(0x7fa64301f000, 4096, PROT_READ) = 0
mprotect(0x7fa6432a2000, 4096, PROT_READ) = 0
mprotect(0x7fa6434bb000, 4096, PROT_READ) = 0
mprotect(0x686000, 4096, PROT_READ) = 0
mprotect(0x7fa6436e0000, 4096, PROT_READ) = 0
munmap(0x7fa6436d5000, 33668) = 0
set_tid_address(0x7fa6436d1c90) = 31762
set_robust_list(0x7fa6436d1ca0, 0x18) = 0
futex(0x7fffcc6c236c, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x7fffcc6c236c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 7fa6436d19c0) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigaction(SIGRTMIN, {0x7fa6432a9870, [], SA_RESTORER|SA_SIGINFO, 0x7fa6432b38f0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x7fa6432a9900, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x7fa6432b38f0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
brk(0) = 0x12fc000
brk(0x131d000) = 0x131d000
rt_sigaction(SIGUSR1, {0x465cac, ~[RTMIN RT_1], SA_RESTORER|SA_RESTART, 0x7fa6432b38f0}, NULL, 8) = 0
rt_sigaction(SIGUSR2, {0x465dcc, ~[RTMIN RT_1], SA_RESTORER, 0x7fa6432b38f0}, NULL, 8) = 0
mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa6435d1000
clock_getres(CLOCK_MONOTONIC, {0, 1}) = 0
sched_getparam(31762, { 0 }) = 0
sched_getscheduler(31762) = 0 (SCHED_OTHER)
sched_get_priority_min(SCHED_OTHER) = 0
sched_get_priority_max(SCHED_OTHER) = 0
open("/etc/localtime", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=447, ...}) = 0
fstat(3, {st_mode=S_IFREG|0644, st_size=447, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa6436dd000
read(3, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\5\0\0\0\5\0\0\0\0"..., 4096) = 447
lseek(3, -261, SEEK_CUR) = 186
read(3, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\5\0\0\0\5\0\0\0\0"..., 4096) = 261
close(3) = 0
munmap(0x7fa6436dd000, 4096) = 0
rt_sigaction(SIGSEGV, {0x44cb08, ~[RTMIN RT_1], SA_RESTORER|SA_RESETHAND|SA_SIGINFO, 0x7fa6432b38f0}, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGBUS, {0x44cb08, ~[RTMIN RT_1], SA_RESTORER|SA_RESETHAND|SA_SIGINFO, 0x7fa6432b38f0}, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGSEGV, {SIG_DFL, [], SA_RESTORER, 0x7fa6432b38f0}, NULL, 8) = 0
rt_sigaction(SIGBUS, {SIG_DFL, [], SA_RESTORER, 0x7fa6432b38f0}, NULL, 8) = 0
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa6436dd000
write(1, "Hello, world!\n", 14Hello, world!
) = 14
munmap(0x7fa6435d1000, 1048576) = 0
exit_group(0) = ?

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