gpu: nvgpu: unit: Add posix-env test to unit tests

Add the posix-env test to the unit test suite that gets built
by tmake. This test caught a legit bug in the posix impl on
the target platform which needed to be fixed first.

JIRA NVGPU-1234

Change-Id: Ic62eac0bb62741dd03883dcd24c57b49ff67fa0e
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1846180
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
Reviewed-by: Philip Elcan <pelcan@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

Makefile.umbrella.tmk

@@ -23,6 +23,7 @@ ifneq ($(NV_BUILD_CONFIGURATION_OS_IS_INTEGRITY),1)
 NV_REPOSITORY_COMPONENTS := drivers/gpu/nvgpu
 NV_REPOSITORY_COMPONENTS += userspace
 NV_REPOSITORY_COMPONENTS += userspace/units/posix-bitops
+NV_REPOSITORY_COMPONENTS += userspace/units/posix-env
 endif
 
 # Local Variables:

userspace/units/posix-env/Makefile.interface.tmk

@@ -0,0 +1,25 @@
+################################### tell Emacs this is a -*- makefile-gmake -*-
+#
+# Copyright (c) 2018, NVIDIA CORPORATION.  All Rights Reserved.
+#
+# NVIDIA CORPORATION and its licensors retain all intellectual property
+# and proprietary rights in and to this software, related documentation
+# and any modifications thereto.  Any use, reproduction, disclosure or
+# distribution of this software and related documentation without an express
+# license agreement from NVIDIA CORPORATION is strictly prohibited.
+#
+# tmake for SW Mobile component makefile
+#
+###############################################################################
+
+ifdef NV_INTERFACE_FLAG_SHARED_LIBRARY_SECTION
+NV_INTERFACE_NAME             := posix-env
+NV_INTERFACE_EXPORTS          := posix-env
+NV_INTERFACE_PUBLIC_INCLUDES  := . include
+endif
+
+# Local Variables:
+# indent-tabs-mode: t
+# tab-width: 8
+# End:
+# vi: set tabstop=8 noexpandtab:

userspace/units/posix-env/Makefile.tmk

@@ -0,0 +1,40 @@
+################################### tell Emacs this is a -*- makefile-gmake -*-
+#
+# Copyright (c) 2018 NVIDIA CORPORATION.  All Rights Reserved.
+#
+# NVIDIA CORPORATION and its licensors retain all intellectual property
+# and proprietary rights in and to this software, related documentation
+# and any modifications thereto.  Any use, reproduction, disclosure or
+# distribution of this software and related documentation without an express
+# license agreement from NVIDIA CORPORATION is strictly prohibited.
+#
+# tmake for SW Mobile component makefile
+#
+###############################################################################
+
+ifdef NV_COMPONENT_FLAG_SHARED_LIBRARY_SECTION
+include $(NV_BUILD_START_COMPONENT)
+
+NV_COMPONENT_NAME		:= posix-env
+NV_COMPONENT_SOURCES		:= posix-env.c
+NV_COMPONENT_OWN_INTERFACE_DIR	:= .
+NV_COMPONENT_CFLAGS		+= -D__NVGPU_POSIX__
+
+NV_COMPONENT_NEEDED_INTERFACE_DIRS := \
+                                $(NV_SOURCE)/kernel/nvgpu/drivers/gpu/nvgpu \
+                                $(NV_SOURCE)/kernel/nvgpu/userspace
+
+NV_COMPONENT_SYSTEMIMAGE_DIR    := $(NV_SYSTEMIMAGE_TEST_EXECUTABLE_DIR)/nvgpu_unit/units
+systemimage:: $(NV_COMPONENT_SYSTEMIMAGE_DIR)
+$(NV_COMPONENT_SYSTEMIMAGE_DIR) : $(NV_SYSTEMIMAGE_TEST_EXECUTABLE_DIR)
+	$(MKDIR_P) $@
+
+include $(NV_BUILD_SHARED_LIBRARY)
+
+endif
+
+# Local Variables:
+# indent-tabs-mode: t
+# tab-width: 8
+# End:
+# vi: set tabstop=8 noexpandtab:

userspace/units/posix-env/posix-env.export

@@ -0,0 +1,3 @@
+# Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
+
+__unit_module__