码：
#include <iostream> #include <thread> void hello() { std::cout << "Hello World" << std::endl; } int main() { try { std::cout << "creating thread" << std::endl; std::thread t(hello); std::cout << "waiting" << std::endl; t.join(); std::cout << "done" << std::endl; } catch(std::exception& ex) { std::cout << ex.what() << std::endl; } } build立：
g++ -Wall -fexceptions -std=c++0x -pthread -g -c /home/alex/tmp/thread_test/main.cpp -o obj/Debug/main.o g++ -o bin/Debug/thread_test obj/Debug/main.o Output size is 106.62 KB Process terminated with status 0 (0 minutes, 0 seconds) 0 errors, 0 warnings
结果：
创build线程
不允许操作
这可以如何解决？
编辑：
用strace运行程序：
alex@alex-64:~/tmp/thread_test/bin/Debug$ strace ./thread_test execve("./thread_test", ["./thread_test"], [/* 38 vars */]) = 0 brk(0) = 0x189a000 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) = 0x7f7c60cbc000 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=121299, ...}) = 0 mmap(NULL, 121299, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f7c60c9e000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/usr/lib/x86_64-linux-gnu/libstdc++.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\0P\244\5\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=991424, ...}) = 0 mmap(NULL, 3171440, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f7c60797000 mprotect(0x7f7c6087f000, 2097152, PROT_NONE) = 0 mmap(0x7f7c60a7f000, 40960, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xe8000) = 0x7f7c60a7f000 mmap(0x7f7c60a89000, 83056, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f7c60a89000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/libgcc_s.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\260(\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=88384, ...}) = 0 mmap(NULL, 2184216, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f7c60581000 mprotect(0x7f7c60596000, 2093056, PROT_NONE) = 0 mmap(0x7f7c60795000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14000) = 0x7f7c60795000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/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 \24\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1685816, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7c60c9d000 mmap(NULL, 3801960, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f7c601e0000 mprotect(0x7f7c60377000, 2093056, PROT_NONE) = 0 mmap(0x7f7c60576000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x196000) = 0x7f7c60576000 mmap(0x7f7c6057b000, 21352, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f7c6057b000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/x86_64-linux-gnu/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=538928, ...}) = 0 mmap(NULL, 2633960, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f7c5ff5c000 mprotect(0x7f7c5ffdf000, 2093056, PROT_NONE) = 0 mmap(0x7f7c601de000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x82000) = 0x7f7c601de000 close(3) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7c60c9c000 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7c60c9a000 arch_prctl(ARCH_SET_FS, 0x7f7c60c9a740) = 0 mprotect(0x7f7c601de000, 4096, PROT_READ) = 0 mprotect(0x7f7c60576000, 16384, PROT_READ) = 0 mprotect(0x7f7c60795000, 4096, PROT_READ) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7c60c99000 mprotect(0x7f7c60a7f000, 32768, PROT_READ) = 0 mprotect(0x603000, 4096, PROT_READ) = 0 mprotect(0x7f7c60cbe000, 4096, PROT_READ) = 0 munmap(0x7f7c60c9e000, 121299) = 0 fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 2), ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7c60cbb000 write(1, "creating thread\n", 16creating thread ) = 16 brk(0) = 0x189a000 brk(0x18bb000) = 0x18bb000 write(1, "Operation not permitted\n", 24Operation not permitted ) = 24 exit_group(0) = ?
你的问题是你忘了指定-lpthread或-pthread标志给编译器。 所以当构建你的程序时，它假设了一个单线程模式。
标准C ++库抛出异常：
(gdb) catch throw Function "__cxa_throw" not defined. Catchpoint 1 (throw) (gdb) run Starting program: /tmp/test creating thread Catchpoint 1 (exception thrown), 0x00007ffff7b8eff0 in __cxa_throw () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (gdb) where #0 0x00007ffff7b8eff0 in __cxa_throw () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #1 0x00007ffff7b3ba3e in std::__throw_system_error(int) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #2 0x00007ffff7b45cb7 in std::thread::_M_start_thread(std::shared_ptr<std::thread::_Impl_base>) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #3 0x00000000004012d4 in std::thread::thread<void (&)()>(void (&&&)()) () #4 0x0000000000400f0e in main () (gdb) quit
我不希望检查源代码，但很可能它们使用“惰性”动态链接来确定POSIX线程函数是否可用。 并抛出异常，否则。 这样，你得到这个异常，除非与pthread库连接。
这与虚拟内存或其他资源限制无关，因为系统调用不会报告任何错误。 所以只要做：
g++ -std=c++0x -o test ./test.cpp -pthread
它会工作。
更新：
正如@ildjaRN指出的，你已经指定了-pthread。 我建议你在对象文件之后指定它（单个调用的源文件compile＆link），否则它可能不会被拾取。
这里是如何确保它被拿起 – 你可以运行ldd ，并确保pthread.so使它在：
$ g++ -std=c++0x -lpthread -o test ./test.cpp $ ldd ./test | grep pthread $ g++ -std=c++0x -o test ./test.cpp -lpthread $ ldd ./test | grep pthread libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007ff2a9073000) $
希望能帮助到你。 祝你好运！