From 23cfe2138c71861684f55a298b55203b4649a645 Mon Sep 17 00:00:00 2001
From: Rickard Green <rickard@erlang.org>
Date: Tue, 20 Dec 2016 17:25:18 +0100
Subject: Workaround for buggy android implementation of PTHREAD_STACK_MIN
---
erts/aclocal.m4 | 19 +++++++++++++++++++
erts/lib_src/common/ethr_aux.c | 2 +-
2 files changed, 20 insertions(+), 1 deletion(-)
(limited to 'erts')
diff --git a/erts/aclocal.m4 b/erts/aclocal.m4
index 6c0544da31..5ea4c2ccf3 100644
--- a/erts/aclocal.m4
+++ b/erts/aclocal.m4
@@ -1704,6 +1704,25 @@ case "$THR_LIB_NAME" in
AC_DEFINE(ETHR_TIME_WITH_SYS_TIME, 1, \
[Define if you can safely include both <sys/time.h> and <time.h>.]))
+ AC_MSG_CHECKING([for usable PTHREAD_STACK_MIN])
+ pthread_stack_min=no
+ AC_TRY_COMPILE([
+#include <limits.h>
+#if defined(ETHR_NEED_NPTL_PTHREAD_H)
+#include <nptl/pthread.h>
+#elif defined(ETHR_HAVE_MIT_PTHREAD_H)
+#include <pthread/mit/pthread.h>
+#elif defined(ETHR_HAVE_PTHREAD_H)
+#include <pthread.h>
+#endif
+ ],
+ [return PTHREAD_STACK_MIN;],
+ [pthread_stack_min=yes])
+
+ AC_MSG_RESULT([$pthread_stack_min])
+ test $pthread_stack_min != yes || {
+ AC_DEFINE(ETHR_HAVE_USABLE_PTHREAD_STACK_MIN, 1, [Define if you can use PTHREAD_STACK_MIN])
+ }
dnl
dnl Check for functions
diff --git a/erts/lib_src/common/ethr_aux.c b/erts/lib_src/common/ethr_aux.c
index 420efd725f..3501fe335a 100644
--- a/erts/lib_src/common/ethr_aux.c
+++ b/erts/lib_src/common/ethr_aux.c
@@ -220,7 +220,7 @@ ethr_init_common__(ethr_init_data *id)
ethr_min_stack_size__ += ethr_pagesize__;
#endif
/* The system may think that we need more stack */
-#if defined(PTHREAD_STACK_MIN)
+#if defined(ETHR_HAVE_USABLE_PTHREAD_STACK_MIN)
if (ethr_min_stack_size__ < PTHREAD_STACK_MIN)
ethr_min_stack_size__ = PTHREAD_STACK_MIN;
#elif defined(_SC_THREAD_STACK_MIN)
--
cgit v1.2.3