我已按照https://developers.google.com/native-client/devguide/tutorial#verify中的说明进行操作
但是，似乎所有示例都没有运行良好。试过设置NACL_SDK_ROOT但/nacl_sdk/仍然/nacl_sdk/pepper_23/没有工作
例如，在“Interactive Hello World in C++”中，当尝试单击“Call reverseText()”按钮时，什么也看不到。使用开发工具，我看到控制台输出是：
Uncaught TypeError: Cannot call method 'postMessage' of null example.js:25
这是 example.js 的一部分：
22: function reverseText() {
23: // Grab the text from the text box, pass it into reverseText()
24: var inputBox = document.getElementById('inputBox');
25: common.naclModule.postMessage('reverseText:' + inputBox.value);
26: }
看起来原因是“common.naclMode 为空”。如何修复此错误？
- 编辑 -
当我尝试另一个“hello world”示例时，http 服务器的输出是：
localhost - - [07/Jan/2013 15:52:42] "GET / HTTP/1.1" 200 -
localhost - - [07/Jan/2013 15:52:45] "GET /hello_world/index.html HTTP/1.1" 200 -
localhost - - [07/Jan/2013 15:52:45] "GET /hello_world/index_newlib_Debug.html HTTP/1.1" 200 -
localhost - - [07/Jan/2013 15:52:45] "GET /hello_world/common.js HTTP/1.1" 200 -
localhost - - [07/Jan/2013 15:52:45] "GET /hello_world/newlib/Debug/hello_world.nmf HTTP/1.1" 200 -
localhost - - [07/Jan/2013 15:52:45] "GET /hello_world/newlib/Debug/hello_world_x86_64.nexe HTTP/1.1" 200 -
我在页面上看到以下内容：
Hello World.
Status: Creating embed: newlib
控制台输出：
NativeClient: NaCl module load failed: Nexe crashed during startup
这是objdump的输出：
nacl_sdk/pepper_23/examples/hello_world$ ../.././toolchain/linux_x86_newlib/bin/x86_64-nacl-objdump -p newlib/Debug/hello_world_x86_64.nexe
newlib/Debug/hello_world_x86_64.nexe: file format elf64-nacl
Program Header:
PHDR off 0x0000000000000000 vaddr 0x0000000000000000 paddr 0x0000000000000000 align 2**3
filesz 0x0000000000000120 memsz 0x0000000000000120 flags r--
LOAD off 0x0000000000010000 vaddr 0x0000000000020000 paddr 0x0000000000020000 align 2**16
filesz 0x0000000000021ac0 memsz 0x0000000000021ac0 flags r-x
LOAD off 0x0000000000040000 vaddr 0x0000000010020000 paddr 0x0000000010020000 align 2**16
filesz 0x0000000000010474 memsz 0x0000000000010474 flags r--
LOAD off 0x0000000000060000 vaddr 0x0000000010040000 paddr 0x0000000010040000 align 2**16
filesz 0x00000000000006e8 memsz 0x0000000000001da8 flags rw-
VERBOSITY=5 的 chrome 输出：
[deqing@hdell]~/works/nacl_sdk/pepper_23$ export NACLVERBOSITY=5
[deqing@hdell]~/works/nacl_sdk/pepper_23$ google-chrome http://localhost:5103
[7,3729430976:11:56:19.763373] NaClRefCountCtor(0x7fb3e5184ac0).
[7,3729430976:11:56:19.763465] NexeFileDidOpen: invoking LoadNaClModule
...
[12,1392863616:03:56:19.825517] nacl_debug(136) : Debugging started.
[12,1392863616:03:56:19.825545] setting stack to : 00007fcefffeffa0
[12,1392863616:03:56:19.825557] copying arg 0 0x7fd95a7b1a40 -> 0x7fcefffeffd0
[12,1392863616:03:56:19.825568] copying env 0 0x7ffff4941bd6 -> 0x7fcefffeffd9
[12,1392863616:03:56:19.825575] copying env 1 0x7ffff4941c95 -> 0x7fcefffeffea
[12,1392863616:03:56:19.825583] system stack ptr : 00007fcefffeff98
[12,1392863616:03:56:19.825589] user stack ptr : 00007fcefffeff98
[12,1392863616:03:56:19.825595] natp = 0x000000000181fa80
[12,1392863616:03:56:19.825603] nap = 0x00007ffff493b9a0
[12,1392863616:03:56:19.825609] usr_stack_ptr = 0x00007fcefffeff98
[12,1392863616:03:56:19.825639] NaClWaitForMainThreadToExit: taking NaClApp lock
[12,1392863616:03:56:19.825648] waiting for exit status
[12,1376372480:03:56:19.825665] NaClThreadLauncher: entered
[12,1376372480:03:56:19.825684] natp = 0x000000000181fa80
[12,1376372480:03:56:19.825691] prog_ctr = 0x00007fce0fc00200
[12,1376372480:03:56:19.825698] stack_ptr = 0x00007fcefffeff98
[12,1376372480:03:56:19.825708] ix 0: 0x00000000
[12,1376372480:03:56:19.825716] found first not-all-ones ix 0
[12,1376372480:03:56:19.825723] Set(0,0x181fa80) @ix 0: 0x00000000
[12,1376372480:03:56:19.825729] After @ix 0: 0x00000001, avail_ix 0
为什么nexe崩溃了？任何人都可以解释一下吗？谢谢。