tests: posix: common: separate posix barriers to standalone test

posix.common contains testsuites that can be separated into smaller
groups of tests. This change moves barrier into a singular
testsuite at tests/posix/barriers app directory.

Signed-off-by: Marvin Ouma <pancakesdeath@protonmail.com>

tests/posix/barriers/CMakeLists.txt

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(posix_barriers)
+
+target_sources(app PRIVATE src/main.c)
+
+target_compile_options(app PRIVATE -U_POSIX_C_SOURCE -D_POSIX_C_SOURCE=200809L)

tests/posix/barriers/prj.conf

@@ -0,0 +1,5 @@
+CONFIG_POSIX_API=y
+CONFIG_ZTEST=y
+
+CONFIG_POSIX_AEP_CHOICE_BASE=y
+CONFIG_POSIX_BARRIERS=y

tests/posix/barriers/src/main.c

@@ -10,7 +10,7 @@
 #include <zephyr/sys/util.h>
 #include <zephyr/ztest.h>
 
-ZTEST(barrier, test_barrier)
+ZTEST(posix_barriers, test_barrier)
 {
 	int ret, pshared;
 	pthread_barrierattr_t attr;
@@ -38,4 +38,4 @@ ZTEST(barrier, test_barrier)
 	zassert_equal(ret, 0, "pthread_barrierattr_destroy failed");
 }
 
-ZTEST_SUITE(barrier, NULL, NULL, NULL, NULL, NULL);
+ZTEST_SUITE(posix_barriers, NULL, NULL, NULL, NULL, NULL);

tests/posix/barriers/testcase.yaml

@@ -0,0 +1,25 @@
+common:
+  filter: not CONFIG_NATIVE_LIBC
+  tags:
+    - posix
+    - barriers
+  # 1 tier0 platform per supported architecture
+  platform_key:
+    - arch
+    - simulation
+  min_flash: 64
+  min_ram: 32
+tests:
+  portability.posix.barriers: {}
+  portability.posix.barriers.minimal:
+    extra_configs:
+      - CONFIG_MINIMAL_LIBC=y
+  portability.posix.barriers.newlib:
+    filter: TOOLCHAIN_HAS_NEWLIB == 1
+    extra_configs:
+      - CONFIG_NEWLIB_LIBC=y
+  portability.posix.barriers.picolibc:
+    tags: picolibc
+    filter: CONFIG_PICOLIBC_SUPPORTED
+    extra_configs:
+      - CONFIG_PICOLIBC=y