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add exception backtraces for segfaults and fatal errors.

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This commit is contained in:
Charles Lowell 2010-05-23 03:46:33 +03:00
parent 83abd10113
commit e509bebe05
6 changed files with 53 additions and 6 deletions
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15
Rakefile
View file

@ -9,7 +9,7 @@ manifest.exclude "ext/**/test/*", "ext/**/test/*", "ext/**/samples/*", "ext/**/b
Gem::Specification.new do |gemspec|
$gemspec = gemspec
gemspec.name = gemspec.rubyforge_project = "therubyracer"
gemspec.version = "0.6.1"
gemspec.version = "0.7.0"
gemspec.summary = "Embed the V8 Javascript interpreter into Ruby"
gemspec.description = "Call javascript code and manipulate javascript objects from ruby. Call ruby code and manipulate ruby objects from javascript."
gemspec.email = "cowboyd@thefrontside.net"
@ -41,11 +41,14 @@ task :clean do
sh "rm -rf lib/v8/*.bundle lib/v8/*.so"
end
namespace :clean do
desc "remove all built v8 objects"
task "v8" => "clean" do
sh "cd #{UPSTREAM} && make clean"
end
desc "remove all built v8 objects"
task "v8:clean" => "clean" do
sh "cd #{UPSTREAM} && make clean"
end
desc "build v8 with debugging symbols (much slower)"
task "v8:debug" do
sh "cd #{UPSTREAM} && make debug"
end
for file in Dir['tasks/*.rake']

2
ext/v8/extconf.rb
View file

@ -14,6 +14,8 @@ have_library('pthread')
have_library('objc') if RUBY_PLATFORM =~ /darwin/
$CPPFLAGS += " -Wall" unless $CPPFLAGS.split.include? "-Wall"
$CPPFLAGS += " -g" unless $CPPFLAGS.split.include? "-g"
$CPPFLAGS += " -rdynamic" unless $CPPFLAGS.split.include? "-rdynamic"
CONFIG['LDSHARED'] = '$(CXX) -shared' unless RUBY_PLATFORM =~ /darwin/

7
ext/v8/upstream/Makefile
View file

@ -3,14 +3,21 @@ SCONS=build/scons/install/bin/scons
SCONSSRC=build/scons
V8SRC=build/v8
LIBV8=build/v8/libv8.a
LIBV8_G=build/v8/libv8_g.a
GCC_VERSION=$(shell ruby -e 'puts %x{gcc --version} =~ /(\d)\.(\d)\.\d/ ? $$1 + $$2 : "UNKNOWN"')
ARCH=$(shell ruby -e "puts ['foo'].pack('p').size == 8 ? 'x64' : 'ia32'")
all: $(LIBV8)
debug: $(LIBV8_G)
cp $(LIBV8_G) $(LIBV8)
$(LIBV8): $(SCONS) $(V8SRC)
cd build/v8 && GCC_VERSION=$(GCC_VERSION) ../scons/install/bin/scons arch=$(ARCH)
$(LIBV8_G): $(SCONS) $(V8SRC)
cd build/v8 && GCC_VERSION=$(GCC_VERSION) ../scons/install/bin/scons arch=$(ARCH) mode=debug
$(SCONS): $(SCONSSRC)
mkdir -p $(SCONSSRC)/install
python build/scons/setup.py install --prefix=install

2
ext/v8/v8.cpp
View file

@ -10,6 +10,7 @@
#include "v8_try_catch.h"
#include "v8_callbacks.h"
#include "v8_external.h"
#include "v8_exception.h"
#include <stdio.h>
@ -31,5 +32,6 @@ extern "C" {
rr_init_v8_try_catch();
rr_init_v8_callbacks();
rr_init_v8_external();
rr_init_v8_exception();
}
}

27
ext/v8/v8_exception.cpp Normal file
View file

@ -0,0 +1,27 @@
#include "v8_exception.h"
#include "rr.h"
#include "execinfo.h"
#include "signal.h"
namespace {
static void* stack[20];
void fatal(const char* location, const char* message) {
int size = backtrace(stack, 20);
backtrace_symbols_fd(stack, size, 2);
rb_raise(rb_eFatal, "%s: %s", location, message);
}
void segfault(int sig) {
fprintf(stderr, "segfault: game over.\n");
void *elements[20];
int size = backtrace(stack, 20);
backtrace_symbols_fd(stack, size, 2);
exit(1);
}
}
void rr_init_v8_exception() {
v8::V8::SetFatalErrorHandler(fatal);
signal(SIGSEGV, segfault);
}

6
ext/v8/v8_exception.h Normal file
View file

@ -0,0 +1,6 @@
#ifndef _RR_V8_EXCEPTION_
#define _RR_V8_EXCEPTION_
void rr_init_v8_exception();
#endif