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YuruToot/stack-fix.c

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#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;
}