Sigsegv extension

.travis/sigsegv-extension/.gitignore

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+.deps
+.libs/sigsegv.la
+.libs/sigsegv.lai
+.libs/sigsegv.o
+.libs/sigsegv.so
+Makefile
+Makefile.fragments
+Makefile.global
+Makefile.objects
+acinclude.m4
+aclocal.m4
+autom4te.cache/output.0
+autom4te.cache/requests
+autom4te.cache/traces.0
+config.guess
+config.h
+config.h.in
+config.h.in~
+config.log
+config.nice
+config.status
+config.sub
+configure
+configure.in
+install-sh
+libtool
+ltmain.sh
+missing
+mkinstalldirs
+modules/sigsegv.la
+modules/sigsegv.so
+run-tests.php
+sigsegv.la
+sigsegv.lo

.travis/sigsegv-extension/README.md

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+## What is this?
+
+This is an extension written for testing purposes.
+
+
+## Provided functionalities
+
+| Function  | Expected result                  |
+|-----------|----------------------------------|
+| sigsegv() | segmentation fault (core dumped) |
+
+
+## Build
+
+```
+phpize
+./configure --with-sigsegv
+make -j
+```
+
+## Usage
+
+```
+php -d extension=modules/sigsegv.so -r "sigsegv();"
+```

.travis/sigsegv-extension/config.m4

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+dnl config.m4 for extension sigsegv
+
+PHP_ARG_WITH(sigsegv, whether to enable sigsegv support,
+[  --enable-sigsegv       Enable sigsegv])
+
+if test "$PHP_SIGSEGV" != "no"; then
+  PHP_NEW_EXTENSION(sigsegv, sigsegv.c, $ext_shared)
+fi

.travis/sigsegv-extension/php_sigsegv.h

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+#ifndef PHP_SIGSEGV_H
+#define PHP_SIGSEGV_H
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "php.h"
+
+#define PHP_SIGSEGV_NAME "sigsegv"
+#define PHP_SIGSEGV_VERSION "0.0.1"
+
+#endif	/* PHP_SIGSEGV_H */

.travis/sigsegv-extension/sigsegv.c

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+#include "php_sigsegv.h"
+
+PHP_FUNCTION (sigsegv) {
+    char *damn_pointer = "I am a damn pointer";
+    *damn_pointer = "So bad!";
+}
+
+PHP_MINIT_FUNCTION (sigsegv) {
+    return SUCCESS;
+}
+
+const zend_function_entry sigsegv_functions[] = {
+PHP_FE(sigsegv, NULL)
+PHP_FE_END};
+
+zend_module_entry sigsegv_module_entry = {
+STANDARD_MODULE_HEADER,
+PHP_SIGSEGV_NAME,
+sigsegv_functions,
+PHP_MINIT(sigsegv),
+NULL,
+NULL,
+NULL,
+NULL,
+PHP_SIGSEGV_VERSION,
+STANDARD_MODULE_PROPERTIES };
+
+#ifdef COMPILE_DL_SIGSEGV
+ZEND_GET_MODULE(sigsegv)
+#endif