A better test program for core files.

tests/hellocore/.gitignore

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+hellocore
+*.seer
+core.*

tests/hellocore/Makefile

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+.PHONY: all
+all: hellocore
+
+hellocore: hellocore.cpp
+	g++ -g -o hellocore hellocore.cpp function1.cpp
+
+.PHONY: clean
+clean:
+	rm -f hellocore hellocore.o function1.o
+

tests/hellocore/README.corefile

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+
+See notes/README.coredump
+
+Quick setup. Some as root.
+
+    % ulimit -c unlimited
+    % install -m 1777 -d /var/local/dumps
+    % (root) echo "/var/local/dumps/core.%e.%p"> /proc/sys/kernel/core_pattern
+    % (root) rcapparmor stop
+    % (root) sysctl -w kernel.suid_dumpable=2
+

tests/hellocore/function1.cpp

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+#include "function1.h"
+#include <iostream>
+#include <unistd.h>
+#include <signal.h>
+
+
+void function1 (const std::string& text) {
+
+    int i = 42;
+
+    sleep(2); // Simulate doing work.
+
+    std::cout << text << i << std::endl;
+
+    //raise(SIGSEGV);
+
+    int* x = 0;
+
+    *x = 2112;
+
+    sleep(3); // Simulate doing work.
+}
+

tests/hellocore/function1.h

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+#pragma once
+
+#include <string>
+
+void function1 (const std::string& text);
+

tests/hellocore/hellocore.cpp

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+#include "function1.h"
+#include <string>
+#include <iostream>
+
+int main (int argc, char** argv) {
+
+    for (int i=0; i<argc; i++) {
+        std::cout << "XX: " << i << " " << argv[i] << std::endl;
+    }
+
+    std::string message = "Hello, World!";
+
+    function1(message);
+
+    return 0;
+}
+