I'm trying to use libmozjs (SpiderMonkey) under Linux x64 (Ubuntu 17.04). However, something goes wrong at the very first steps.
The SpiderMonkey project has no bug tracker, also after using Google very hard I didn't find any workaround about my problem, so I ask the honoured StackOverflow's community for help.
First of all, I tried this with 3 versions of SpiderMonkey:
- Version 45 (stable):
https://people.mozilla.org/~sfink/mozjs-45.0.2.tar.bz2 - Version 52 (draft):
https://hg.mozilla.org/releases/mozilla-esr52/archive/tip.tar.bz2 - Version 55a1 (draft, latest):
hg clone http://hg.mozilla.org/mozilla-central/
Second, all these versions were made by the same way:
$ cd js/src
$ autoconf2.13
$ mkdir build_DBG.OBJ
$ cd build_DBG.OBJ
$ ../configure --enable-debug --disable-optimize
$ make
(Initially I used configure without options --enable-debug --disable-optimize, having the same error, later added the options to be able to backtrace the code)
Third, my sample code is extremely simple:
#include <iostream>
#include <stdexcept>
#include "jsapi.h"
#include "js/Initialization.h"
int main(int argc, char** args){
std::cout<< "Start...\n"
if(!JS_Init())
throw std::runtime_error("Failed to initialize");
std::cout << "It's alive!\n";
JS_ShutDown();
std::cout << "Finished\n";
return 0;
}
I have compiled three executables from this code, one for each version of SpiderMonkey:
$ g++ --std=c++11 -I~/mozjs-45/js/src/build_OPT.OBJ/dist/include -L~/mozjs-45/js/src/build_OPT.OBJ/dist/bin test.cpp -o test.45 -Wall -lmozjs-45 -DDEBUG -ggdb
$ g++ --std=c++11 -I~/mozjs-52/js/src/build_OPT.OBJ/dist/include -L~/mozjs-52/js/src/build_OPT.OBJ/dist/bin test.cpp -o test.52 -Wall -lmozjs-52 -DDEBUG -ggdb
$ g++ --std=c++11 -I~/mozjs-55a1/js/src/build_OPT.OBJ/dist/include -L~/mozjs-55a1/js/src/build_OPT.OBJ/dist/bin test.cpp -o test.55a1 -Wall -lmozjs-55a1 -DDEBUG -ggdb
And finally, the result:
Version 45
As expected:
$ ./test.45
Start...
It's alive!
Finished
Version 52
Error while calling JS_Init:
$ ./test.52
Start...
Segmentation fault (core dumped)
Version 55a1
Error before calling JS_Init:
$ ./test.55a1
Segmentation fault (core dumped)
Backtrace of ./test.52
Starting program: /home/tumick/C/cpp/test.52
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
#0 0x0000000000000000 in ?? ()
#1 0x00007ffff5c27dfa in JS::detail::InitWithFailureDiagnostic (isDebugBuild=true)
at /home/tumick/mozilla-esr52-patched/js/src/vm/Initialization.cpp:89
#2 0x000055555555501a in JS_Init ()
at /home/tumick/mozilla-esr52-patched/js/src/build_DBG.OBJ/dist/include/js/Initialization.h:68
#3 0x0000555555554e38 in main (argc=1, args=0x7fffffffe078) at test.cpp:9
Backtrace of ./test.55a1
Starting program: /home/tumick/C/cpp/test.55a1
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
#0 0x0000000000000000 in ?? ()
#1 0x00007ffff5d8d02c in js::Mutex::Mutex (this=0x7ffff7dcc000 <js::vtune::VTuneMutex>, id=...)
at /home/tumick/mozilla-central/js/src/threading/Mutex.h:57
#2 0x00007ffff5d9a1e3 in __static_initialization_and_destruction_0 (__initialize_p=1, __priority=65535)
at /home/tumick/mozilla-central/js/src/vtune/VTuneWrapper.cpp:26
#3 0x00007ffff5d9a213 in _GLOBAL__sub_I_VTuneWrapper.cpp(void) ()
at /home/tumick/mozilla-central/js/src/vtune/VTuneWrapper.cpp:181
#4 0x00007ffff7de781a in call_init (l=<optimized out>, argc=argc@entry=1,
argv=argv@entry=0x7fffffffe078, env=env@entry=0x7fffffffe088) at dl-init.c:72
#5 0x00007ffff7de792b in call_init (env=0x7fffffffe088, argv=0x7fffffffe078, argc=1, l=<optimized out>)
at dl-init.c:30
#6 _dl_init (main_map=0x7ffff7ffe168, argc=1, argv=0x7fffffffe078, env=0x7fffffffe088) at dl-init.c:120
#7 0x00007ffff7dd7cda in _dl_start_user () from /lib64/ld-linux-x86-64.so.2
#8 0x0000000000000001 in ?? ()
#9 0x00007fffffffe3b8 in ?? ()
#10 0x0000000000000000 in ?? ()
Yes I know, version 45 is the latest that has been officially released. But first, Mozilla Firefox itself use each new version of SpiderMonkey just after it is complete. And second, we use version 52 on Windows (both 32- and 64-bit) for months in very highloaded environment, build from the same sources, without any problems.
Version 52 has a couple of key features, because of what we have to use exactly version 52 or later.
Finally, I should admit, I'm not very experienced neither with C++, nor with Linux. Considering the problem arises at such a first step and with such a trivial code, I suppose that I've just overlooked something very basic and simple.
So, if You've meet the same problem and know the workaround to solve it, please, help me to deal with it.
Thank You :)
