From 272a82e06acced6a6f78ff9d9ca8802c03f3f3df Mon Sep 17 00:00:00 2001
From: Phil Kunz <gitlab@philkunz.com>
Date: Sat, 23 Nov 2019 21:32:41 +0000
Subject: [PATCH] fix(core): update

---
 .gitlab-ci.yml |  8 ++++++++
 stack-fix.c    | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 stack-fix.c

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7e2f72d..d940bcc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -10,6 +10,14 @@ before_script:
 - apk add --no-cache libgcc libstdc++ gnupg nodejs nodejs-npm
 - apk add --no-cache krb5-libs
 - update-ca-certificates
+- cp ./stack-fix.c /lib/
+- set -ex \
+    && apk add --no-cache  --virtual .build-deps build-base \
+    && gcc  -shared -fPIC /lib/stack-fix.c -o /lib/stack-fix.so \
+    && apk del .build-deps
+
+# export the environment variable of LD_PRELOAD
+ENV LD_PRELOAD /lib/stack-fix.so
 - npm config set unsafe-perm true
 - npm install -g @shipzone/npmci
 - npmci npm prepare
diff --git a/stack-fix.c b/stack-fix.c
new file mode 100644
index 0000000..49a79ec
--- /dev/null
+++ b/stack-fix.c
@@ -0,0 +1,32 @@
+#include <dlfcn.h>
+#include <pthread.h>
+#include <stdio.h>
+
+// THIS IS TO AVOID A SIGFAULT WHEN RUNNING python3.6 manage.py runserver
+// This should be fixed at some point by Alpine and/or Python
+// Check this issue for more info
+// https://github.com/docker-library/python/issues/211
+typedef int (*func_t)(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void*), void *arg);
+
+int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void*), void *arg) {
+
+    pthread_attr_t local;
+    int used = 0, ret;
+
+    if (!attr) {
+        used = 1;
+        pthread_attr_init(&local);
+        attr = &local;
+    }
+    pthread_attr_setstacksize((void*)attr, 2 * 1024 * 1024); // 2 MB
+
+    func_t orig = (func_t)dlsym(RTLD_NEXT, "pthread_create");
+
+    ret = orig(thread, attr, start_routine, arg);
+
+    if (used) {
+        pthread_attr_destroy(&local);
+    }
+
+    return ret;
+}
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