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compile error ,target=arm7 #3224
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Can you show how you're configuring and building (specifically what commands)? Additionally, are you cross-compiling or compiling on-device?
I used script on this post: https://gist.github.com/Gioyik/7895192
And I'm cross-compiling on linux pc.It looks like you're hitting a compiler bug, not much we can do about that. See if you can upgrade to g++ 4.9 or 5.1 or try using clang++.
Thank you for your comment.
gcc 4.8.2 resolves the error .
I guess early 4.8 gcc version might have the problemI compiled successfully, but when I download cross-compiled node* to arm board and execute it, I've got error
$ ./node Illegal instruction $Does
node --noenable_vfp3work? If so, you may need to configure the FPU. A patch for that landed just yesterday, commit 17665af.Same situation of Illegal Instruction here. Tried with --noenable_vfp3. Any ideas what else to try? My SoC is a Cortex-A9 (Broadcom 4708) without a FPU. Here is the backtrace.
(gdb) run The program being debugged has been started already. Start it from the beginning? (y or n) y Starting program: /tmp/mnt/sandisk/entware.arm/local/node-v4.2.1/bin/node "--noenable_vfp3" warning: File "/tmp/mnt/sandisk/entware.arm/lib/libthread_db-1.0.so" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load". warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available. [New LWP 4707] [New LWP 4708] [New LWP 4709] [New LWP 4710] Program received signal SIGILL, Illegal instruction. 0x55e1e284 in ?? () (gdb) bt #0 0x55e1e284 in ?? () #1 0x003addb0 in v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*, bool) () #2 0x0026a214 in v8::internal::Genesis::CompileNative(v8::internal::Isolate*, v8::internal::Vector<char const>, v8::internal::Handle<v8::internal::String>, int, v8::internal::Handle<v8::internal::Object>*) () #3 0x0026ee00 in v8::internal::Genesis::CompileBuiltin(v8::internal::Isolate*, int) () #4 0x0027259c in v8::internal::Genesis::InstallNatives() () #5 0x002744d4 in v8::internal::Genesis::Genesis(v8::internal::Isolate*, v8::internal::MaybeHandle<v8::internal::JSGlobalProxy>, v8::Local<v8::ObjectTemplate>, v8::ExtensionConfiguration*) () #6 0x002748f0 in v8::internal::Bootstrapper::CreateEnvironment(v8::internal::MaybeHandle<v8::internal::JSGlobalProxy>, v8::Local<v8::ObjectTemplate>, v8::ExtensionConfiguration*) () #7 0x002426c8 in v8::Context::New(v8::Isolate*, v8::ExtensionConfiguration*, v8::Local<v8::ObjectTemplate>, v8::Local<v8::Value>) () #8 0x0072c7c4 in node::Start(int, char**) () #9 0x402681bc in __libc_start_main () from /opt/lib/libc.so.6 #10 0x00213634 in _start () Backtrace stopped: previous frame identical to this frame (corrupt stack?)What does
disassemble $pc,$pc+16print?PS: I don't think node.js and V8 support nofpu mode as such but I would expect the kernel to emulate floating point instructions.
Here you're (thanks for the speedy response btw:)
(gdb) disassemble $pc,$pc+16 Dump of assembler code from 0x3cf1e284 to 0x3cf1e294: => 0x3cf1e284: vpush {d8-d15} 0x3cf1e288: mov r12, #0 0x3cf1e28c: vmov d14, r12, r12 0x3cf1e290: vmrs r4, fpscr End of assembler dump.My kernel perhaps doesn't have FPU emulation compiled in. I'll need to check. I compiled node.js+v8 with -mfloat-abi=soft. I thought FPU emulation handled by c/c++ libraries without kernel involvement?
Right, it looks like emulation is indeed disabled.
I compiled node.js+v8 with -mfloat-abi=soft. I thought FPU emulation handled by c/c++ libraries without kernel involvement?
For C and C++ code, yes. V8 is a JIT compiler however, it generates machine code at run-time, and I'm almost positive it doesn't support FPU-less mode.
Closing due to inactivity.
I'm trying to compile nodejs v4.1.0 with gcc version 4.8 for arm v7 platform. but I've got an error:
V8_ALIGNAS is defined in deps/v8/include/v8config.h