From 7639937678f5aba42fc5352dd7f3d2fbe4cbcf5d Mon Sep 17 00:00:00 2001
From: TXuian <1163589503@qq.com>
Date: Mon, 23 Dec 2024 22:40:54 +0800
Subject: [PATCH] little fix

---
 Ubiquitous/XiZi_AIoT/Makefile                 |   2 +-
 Ubiquitous/XiZi_AIoT/compiler.mk              |   2 +-
 .../arch/arm/armv7-a/cortex-a9/core.h         |   7 +
 .../include/regsepit.h                        | 710 ++++++++++++++++++
 .../arch/arm/armv8-a/cortex-a55/core.h        |  11 +-
 Ubiquitous/XiZi_AIoT/services/app/Makefile    |  32 +-
 .../XiZi_AIoT/services/app/pingpong_client.c  | 154 ++++
 .../XiZi_AIoT/services/app/pingpong_server.c  |  39 +
 .../XiZi_AIoT/services/app/pingpong_service.c |  26 +
 .../XiZi_AIoT/services/app/pingpong_service.h |  20 +
 .../services/app/test_context_user.c          |  42 ++
 .../services/boards/3568/arch_usyscall.c      |  21 +
 .../XiZi_AIoT/services/drivers/3568/Makefile  |   2 +-
 .../XiZi_AIoT/services/fs/fs_server/fs.c      |   6 +-
 .../services/fs/fs_server/fs_server.c         |   4 +-
 .../services/fs/fs_server/include/fs.h        |   8 +-
 .../services/lib/usyscall/usyscall.c          |   5 +
 .../services/lib/usyscall/usyscall.h          |   3 +
 .../XiZi_AIoT/services/tools/mkfs/mkfs.h      |   4 +-
 .../XiZi_AIoT/softkernel/include/buddy.h      |   2 +-
 Ubiquitous/XiZi_AIoT/softkernel/include/log.h |  15 +-
 .../XiZi_AIoT/softkernel/syscall/syscall.c    |   2 +-
 22 files changed, 1091 insertions(+), 26 deletions(-)
 create mode 100644 Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv7-a/cortex-a9/preboot_for_imx6q-sabrelite/include/regsepit.h
 create mode 100755 Ubiquitous/XiZi_AIoT/services/app/pingpong_client.c
 create mode 100755 Ubiquitous/XiZi_AIoT/services/app/pingpong_server.c
 create mode 100644 Ubiquitous/XiZi_AIoT/services/app/pingpong_service.c
 create mode 100644 Ubiquitous/XiZi_AIoT/services/app/pingpong_service.h
 create mode 100644 Ubiquitous/XiZi_AIoT/services/app/test_context_user.c

diff --git a/Ubiquitous/XiZi_AIoT/Makefile b/Ubiquitous/XiZi_AIoT/Makefile
index 4bc6e3b00..032bdd023 100755
--- a/Ubiquitous/XiZi_AIoT/Makefile
+++ b/Ubiquitous/XiZi_AIoT/Makefile
@@ -9,7 +9,7 @@ emulator_support +=
 support := $(riscv_support) $(arm_support) $(emulator_support) 
 SRC_DIR :=
 
-export BOARD ?= imx6q-sabrelite
+export BOARD ?= 3568
 # This is the environment variable for kconfig-mconf
 export KCONFIG_CONFIG ?= .config
 
diff --git a/Ubiquitous/XiZi_AIoT/compiler.mk b/Ubiquitous/XiZi_AIoT/compiler.mk
index 053cc1405..335dbbac6 100644
--- a/Ubiquitous/XiZi_AIoT/compiler.mk
+++ b/Ubiquitous/XiZi_AIoT/compiler.mk
@@ -34,7 +34,7 @@ $(eval LOCALC := $(addprefix $(BUILD_DIR)/,$(COBJ))) \
 $(eval OBJS += $(LOCALC)) \
 $(if $(strip $(LOCALC)),$(eval $(LOCALC): $(1)
 	@if [ ! -d $$(@D) ]; then mkdir -p $$(@D); fi
-	@echo cc $$< 
+	@echo cc $(subst $(KERNEL_ROOT)/,,$$<)
 	@/bin/echo -n $(dir $(LOCALC)) >>$(KERNEL_ROOT)/build/make.dep
 	@($(CROSS_COMPILE)gcc -MM $$(CFLAGS) -c $$<) >>$(KERNEL_ROOT)/build/make.dep
 	@$(CROSS_COMPILE)gcc $$(CFLAGS) -c $$< -o $$@))
diff --git a/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv7-a/cortex-a9/core.h b/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv7-a/cortex-a9/core.h
index 01c5623bf..daed03bd4 100644
--- a/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv7-a/cortex-a9/core.h
+++ b/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv7-a/cortex-a9/core.h
@@ -76,6 +76,13 @@ Modification:
 
 #define NR_CPU 4
 
+static inline uint64_t arch_current_tick()
+{
+    uint32_t tick = 0;
+    __asm__ __volatile__("MRC p15, 0, %0, c9, c13, 0" : "=r"(tick)); // %0 应该是输出操作数
+    return (uint64_t)tick;
+}
+
 __attribute__((always_inline, optimize("O0"))) static inline uint32_t user_mode()
 {
     uint32_t val;
diff --git a/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv7-a/cortex-a9/preboot_for_imx6q-sabrelite/include/regsepit.h b/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv7-a/cortex-a9/preboot_for_imx6q-sabrelite/include/regsepit.h
new file mode 100644
index 000000000..c57ac13d5
--- /dev/null
+++ b/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv7-a/cortex-a9/preboot_for_imx6q-sabrelite/include/regsepit.h
@@ -0,0 +1,710 @@
+/*
+ * Copyright (c) 2012, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * THIS SOFTWARE IS PROVIDED BY FREESCALE "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL FREESCALE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ */
+/*
+ * WARNING! DO NOT EDIT THIS FILE DIRECTLY!
+ *
+ * This file was generated automatically and any changes may be lost.
+ */
+#ifndef __HW_EPIT_REGISTERS_H__
+#define __HW_EPIT_REGISTERS_H__
+
+#include "regs.h"
+#include "soc_memory_map.h"
+
+/*
+ * i.MX6SL EPIT
+ *
+ * EPIT
+ *
+ * Registers defined in this header file:
+ * - HW_EPIT_CR - Control register
+ * - HW_EPIT_SR - Status register
+ * - HW_EPIT_LR - Load register
+ * - HW_EPIT_CMPR - Compare register
+ * - HW_EPIT_CNR - Counter register
+ *
+ * - hw_epit_t - Struct containing all module registers.
+ */
+
+//! @name Module base addresses
+//@{
+#ifndef REGS_EPIT_BASE
+#define HW_EPIT_INSTANCE_COUNT (2) //!< Number of instances of the EPIT module.
+#define HW_EPIT1 (1) //!< Instance number for EPIT1.
+#define HW_EPIT2 (2) //!< Instance number for EPIT2.
+#define REGS_EPIT1_BASE USERLAND_MMIO_P2V(0x020d0000) //!< Base address for EPIT instance number 1.
+#define REGS_EPIT2_BASE USERLAND_MMIO_P2V(0x020d4000) //!< Base address for EPIT instance number 2.
+
+//! @brief Get the base address of EPIT by instance number.
+//! @param x EPIT instance number, from 1 through 2.
+#define REGS_EPIT_BASE(x) ((x) == HW_EPIT1 ? REGS_EPIT1_BASE : (x) == HW_EPIT2 ? REGS_EPIT2_BASE \
+                                                                               : 0x00d00000)
+
+//! @brief Get the instance number given a base address.
+//! @param b Base address for an instance of EPIT.
+#define REGS_EPIT_INSTANCE(b) ((b) == REGS_EPIT1_BASE ? HW_EPIT1 : (b) == REGS_EPIT2_BASE ? HW_EPIT2 \
+                                                                                          : 0)
+#endif
+//@}
+
+//-------------------------------------------------------------------------------------------
+// HW_EPIT_CR - Control register
+//-------------------------------------------------------------------------------------------
+
+#ifndef __LANGUAGE_ASM__
+/*!
+ * @brief HW_EPIT_CR - Control register (RW)
+ *
+ * Reset value: 0x00000000
+ *
+ * The EPIT control register (EPIT_CR) is used to configure the operating settings of the EPIT. It
+ * contains the clock division prescaler value and also the interrupt enable bit. Additionally, it
+ * contains other control bits which are described below. Peripheral Bus Write access to EPIT
+ * Control Register (EPIT_CR) results in one cycle of the wait state, while other valid peripheral
+ * bus accesses are with 0 wait state.
+ */
+typedef union _hw_epit_cr {
+    reg32_t U;
+    struct _hw_epit_cr_bitfields {
+        unsigned EN : 1; //!< [0] This bit enables the EPIT.
+        unsigned ENMOD : 1; //!< [1] EPIT enable mode.
+        unsigned OCIEN : 1; //!< [2] Output compare interrupt enable.
+        unsigned RLD : 1; //!< [3] Counter reload control.
+        unsigned PRESCALAR : 12; //!< [15:4] Counter clock prescaler value.
+        unsigned SWR : 1; //!< [16] Software reset.
+        unsigned IOVW : 1; //!< [17] EPIT counter overwrite enable.
+        unsigned DBGEN : 1; //!< [18] This bit is used to keep the EPIT functional in debug mode.
+        unsigned WAITEN : 1; //!< [19] This read/write control bit enables the operation of the EPIT during wait mode.
+        unsigned RESERVED0 : 1; //!< [20] Reserved.
+        unsigned STOPEN : 1; //!< [21] EPIT stop mode enable.
+        unsigned OM : 2; //!< [23:22] EPIT output mode.This bit field determines the mode of EPIT output on the output pin.
+        unsigned CLKSRC : 2; //!< [25:24] Select clock source
+        unsigned RESERVED1 : 6; //!< [31:26] Reserved.
+    } B;
+} hw_epit_cr_t;
+#endif
+
+/*!
+ * @name Constants and macros for entire EPIT_CR register
+ */
+//@{
+#define HW_EPIT_CR_ADDR(x) (REGS_EPIT_BASE(x) + 0x0)
+
+#ifndef __LANGUAGE_ASM__
+#define HW_EPIT_CR(x) (*(volatile hw_epit_cr_t*)HW_EPIT_CR_ADDR(x))
+#define HW_EPIT_CR_RD(x) (HW_EPIT_CR(x).U)
+#define HW_EPIT_CR_WR(x, v) (HW_EPIT_CR(x).U = (v))
+#define HW_EPIT_CR_SET(x, v) (HW_EPIT_CR_WR(x, HW_EPIT_CR_RD(x) | (v)))
+#define HW_EPIT_CR_CLR(x, v) (HW_EPIT_CR_WR(x, HW_EPIT_CR_RD(x) & ~(v)))
+#define HW_EPIT_CR_TOG(x, v) (HW_EPIT_CR_WR(x, HW_EPIT_CR_RD(x) ^ (v)))
+#endif
+//@}
+
+/*
+ * constants & macros for individual EPIT_CR bitfields
+ */
+
+/*! @name Register EPIT_CR, field EN[0] (RW)
+ *
+ * This bit enables the EPIT. EPIT counter and prescaler value when EPIT is enabled (EN = 1), is
+ * dependent upon ENMOD and RLD bit as described for ENMOD bit. It is recommended that all registers
+ * be properly programmed before setting this bit. This bit is reset by a hardware reset. A software
+ * reset does not affect this bit.
+ *
+ * Values:
+ * - 0 - EPIT is disabled
+ * - 1 - EPIT is enabled
+ */
+//@{
+#define BP_EPIT_CR_EN (0) //!< Bit position for EPIT_CR_EN.
+#define BM_EPIT_CR_EN (0x00000001) //!< Bit mask for EPIT_CR_EN.
+
+//! @brief Get value of EPIT_CR_EN from a register value.
+#define BG_EPIT_CR_EN(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_EN) >> BP_EPIT_CR_EN)
+
+//! @brief Format value for bitfield EPIT_CR_EN.
+#define BF_EPIT_CR_EN(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_EN) & BM_EPIT_CR_EN)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the EN field to a new value.
+#define BW_EPIT_CR_EN(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_EN) | BF_EPIT_CR_EN(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field ENMOD[1] (RW)
+ *
+ * EPIT enable mode. When EPIT is disabled (EN=0), both main counter and prescaler counter freeze
+ * their count at current count values. ENMOD bit is a r/w bit that determines the counter value
+ * when the EPIT is enabled again by setting EN bit. If ENMOD bit is set, then main counter is
+ * loaded with the load value (If RLD=1)/ 0xFFFF_FFFF (If RLD=0) and prescaler counter is reset,
+ * when EPIT is enabled (EN=1). If ENMOD is programmed to 0 then both main counter and prescaler
+ * counter restart counting from their frozen values when EPIT is enabled (EN=1). If EPIT is
+ * programmed to be disabled in a low-power mode (STOP/WAIT/DEBUG), then both the main counter and
+ * the prescaler counter freeze at their current count values when EPIT enters low-power mode. When
+ * EPIT exits the low-power mode, both main counter and prescaler counter start counting from their
+ * frozen values irrespective of the ENMOD bit. This bit is reset by a hardware reset. A software
+ * reset does not affect this bit.
+ *
+ * Values:
+ * - 0 - Counter starts counting from the value it had when it was disabled.
+ * - 1 - Counter starts count from load value (RLD=1) or 0xFFFF_FFFF (If RLD=0)
+ */
+//@{
+#define BP_EPIT_CR_ENMOD (1) //!< Bit position for EPIT_CR_ENMOD.
+#define BM_EPIT_CR_ENMOD (0x00000002) //!< Bit mask for EPIT_CR_ENMOD.
+
+//! @brief Get value of EPIT_CR_ENMOD from a register value.
+#define BG_EPIT_CR_ENMOD(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_ENMOD) >> BP_EPIT_CR_ENMOD)
+
+//! @brief Format value for bitfield EPIT_CR_ENMOD.
+#define BF_EPIT_CR_ENMOD(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_ENMOD) & BM_EPIT_CR_ENMOD)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the ENMOD field to a new value.
+#define BW_EPIT_CR_ENMOD(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_ENMOD) | BF_EPIT_CR_ENMOD(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field OCIEN[2] (RW)
+ *
+ * Output compare interrupt enable. This bit enables the generation of interrupt on occurrence of
+ * compare event.
+ *
+ * Values:
+ * - 0 - Compare interrupt disabled
+ * - 1 - Compare interrupt enabled
+ */
+//@{
+#define BP_EPIT_CR_OCIEN (2) //!< Bit position for EPIT_CR_OCIEN.
+#define BM_EPIT_CR_OCIEN (0x00000004) //!< Bit mask for EPIT_CR_OCIEN.
+
+//! @brief Get value of EPIT_CR_OCIEN from a register value.
+#define BG_EPIT_CR_OCIEN(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_OCIEN) >> BP_EPIT_CR_OCIEN)
+
+//! @brief Format value for bitfield EPIT_CR_OCIEN.
+#define BF_EPIT_CR_OCIEN(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_OCIEN) & BM_EPIT_CR_OCIEN)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the OCIEN field to a new value.
+#define BW_EPIT_CR_OCIEN(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_OCIEN) | BF_EPIT_CR_OCIEN(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field RLD[3] (RW)
+ *
+ * Counter reload control. This bit is cleared by hardware reset. It decides the counter
+ * functionality, whether to run in free-running mode or set-and-forget mode.
+ *
+ * Values:
+ * - 0 - When the counter reaches zero it rolls over to 0xFFFF_FFFF (free-running mode)
+ * - 1 - When the counter reaches zero it reloads from the modulus register (set-and-forget mode)
+ */
+//@{
+#define BP_EPIT_CR_RLD (3) //!< Bit position for EPIT_CR_RLD.
+#define BM_EPIT_CR_RLD (0x00000008) //!< Bit mask for EPIT_CR_RLD.
+
+//! @brief Get value of EPIT_CR_RLD from a register value.
+#define BG_EPIT_CR_RLD(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_RLD) >> BP_EPIT_CR_RLD)
+
+//! @brief Format value for bitfield EPIT_CR_RLD.
+#define BF_EPIT_CR_RLD(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_RLD) & BM_EPIT_CR_RLD)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the RLD field to a new value.
+#define BW_EPIT_CR_RLD(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_RLD) | BF_EPIT_CR_RLD(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field PRESCALAR[15:4] (RW)
+ *
+ * Counter clock prescaler value. This bit field determines the prescaler value by which the clock
+ * is divided before it goes to the counter
+ *
+ * Values:
+ * - 0x000 - Divide by 1
+ * - 0x001 - Divide by 2...
+ * - 0xFFF - Divide by 4096
+ */
+//@{
+#define BP_EPIT_CR_PRESCALAR (4) //!< Bit position for EPIT_CR_PRESCALAR.
+#define BM_EPIT_CR_PRESCALAR (0x0000fff0) //!< Bit mask for EPIT_CR_PRESCALAR.
+
+//! @brief Get value of EPIT_CR_PRESCALAR from a register value.
+#define BG_EPIT_CR_PRESCALAR(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_PRESCALAR) >> BP_EPIT_CR_PRESCALAR)
+
+//! @brief Format value for bitfield EPIT_CR_PRESCALAR.
+#define BF_EPIT_CR_PRESCALAR(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_PRESCALAR) & BM_EPIT_CR_PRESCALAR)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the PRESCALAR field to a new value.
+#define BW_EPIT_CR_PRESCALAR(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_PRESCALAR) | BF_EPIT_CR_PRESCALAR(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field SWR[16] (RW)
+ *
+ * Software reset. The EPIT is reset when this bit is set to 1. It is a self clearing bit. This bit
+ * is set when the block is in reset state and is cleared when the reset procedure is over. Setting
+ * this bit resets all the registers to their reset values, except for the EN, ENMOD, STOPEN, WAITEN
+ * and DBGEN bits in this control register
+ *
+ * Values:
+ * - 0 - EPIT is out of reset
+ * - 1 - EPIT is undergoing reset
+ */
+//@{
+#define BP_EPIT_CR_SWR (16) //!< Bit position for EPIT_CR_SWR.
+#define BM_EPIT_CR_SWR (0x00010000) //!< Bit mask for EPIT_CR_SWR.
+
+//! @brief Get value of EPIT_CR_SWR from a register value.
+#define BG_EPIT_CR_SWR(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_SWR) >> BP_EPIT_CR_SWR)
+
+//! @brief Format value for bitfield EPIT_CR_SWR.
+#define BF_EPIT_CR_SWR(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_SWR) & BM_EPIT_CR_SWR)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the SWR field to a new value.
+#define BW_EPIT_CR_SWR(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_SWR) | BF_EPIT_CR_SWR(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field IOVW[17] (RW)
+ *
+ * EPIT counter overwrite enable. This bit controls the counter data when the modulus register is
+ * written. When this bit is set, all writes to the load register overwrites the counter contents
+ * and the counter starts subsequently counting down from the programmed value.
+ *
+ * Values:
+ * - 0 - Write to load register does not result in counter value being overwritten.
+ * - 1 - Write to load register results in immediate overwriting of counter value.
+ */
+//@{
+#define BP_EPIT_CR_IOVW (17) //!< Bit position for EPIT_CR_IOVW.
+#define BM_EPIT_CR_IOVW (0x00020000) //!< Bit mask for EPIT_CR_IOVW.
+
+//! @brief Get value of EPIT_CR_IOVW from a register value.
+#define BG_EPIT_CR_IOVW(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_IOVW) >> BP_EPIT_CR_IOVW)
+
+//! @brief Format value for bitfield EPIT_CR_IOVW.
+#define BF_EPIT_CR_IOVW(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_IOVW) & BM_EPIT_CR_IOVW)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the IOVW field to a new value.
+#define BW_EPIT_CR_IOVW(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_IOVW) | BF_EPIT_CR_IOVW(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field DBGEN[18] (RW)
+ *
+ * This bit is used to keep the EPIT functional in debug mode. When this bit is cleared, the input
+ * clock is gated off in debug mode.This bit is reset by hardware reset. A software reset does not
+ * affect this bit.
+ *
+ * Values:
+ * - 0 - Inactive in debug mode
+ * - 1 - Active in debug mode
+ */
+//@{
+#define BP_EPIT_CR_DBGEN (18) //!< Bit position for EPIT_CR_DBGEN.
+#define BM_EPIT_CR_DBGEN (0x00040000) //!< Bit mask for EPIT_CR_DBGEN.
+
+//! @brief Get value of EPIT_CR_DBGEN from a register value.
+#define BG_EPIT_CR_DBGEN(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_DBGEN) >> BP_EPIT_CR_DBGEN)
+
+//! @brief Format value for bitfield EPIT_CR_DBGEN.
+#define BF_EPIT_CR_DBGEN(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_DBGEN) & BM_EPIT_CR_DBGEN)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the DBGEN field to a new value.
+#define BW_EPIT_CR_DBGEN(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_DBGEN) | BF_EPIT_CR_DBGEN(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field WAITEN[19] (RW)
+ *
+ * This read/write control bit enables the operation of the EPIT during wait mode. This bit is reset
+ * by a hardware reset. A software reset does not affect this bit.
+ *
+ * Values:
+ * - 0 - EPIT is disabled in wait mode
+ * - 1 - EPIT is enabled in wait mode
+ */
+//@{
+#define BP_EPIT_CR_WAITEN (19) //!< Bit position for EPIT_CR_WAITEN.
+#define BM_EPIT_CR_WAITEN (0x00080000) //!< Bit mask for EPIT_CR_WAITEN.
+
+//! @brief Get value of EPIT_CR_WAITEN from a register value.
+#define BG_EPIT_CR_WAITEN(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_WAITEN) >> BP_EPIT_CR_WAITEN)
+
+//! @brief Format value for bitfield EPIT_CR_WAITEN.
+#define BF_EPIT_CR_WAITEN(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_WAITEN) & BM_EPIT_CR_WAITEN)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the WAITEN field to a new value.
+#define BW_EPIT_CR_WAITEN(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_WAITEN) | BF_EPIT_CR_WAITEN(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field STOPEN[21] (RW)
+ *
+ * EPIT stop mode enable. This read/write control bit enables the operation of the EPIT during stop
+ * mode. This bit is reset by a hardware reset and unaffected by software reset.
+ *
+ * Values:
+ * - 0 - EPIT is disabled in stop mode
+ * - 1 - EPIT is enabled in stop mode
+ */
+//@{
+#define BP_EPIT_CR_STOPEN (21) //!< Bit position for EPIT_CR_STOPEN.
+#define BM_EPIT_CR_STOPEN (0x00200000) //!< Bit mask for EPIT_CR_STOPEN.
+
+//! @brief Get value of EPIT_CR_STOPEN from a register value.
+#define BG_EPIT_CR_STOPEN(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_STOPEN) >> BP_EPIT_CR_STOPEN)
+
+//! @brief Format value for bitfield EPIT_CR_STOPEN.
+#define BF_EPIT_CR_STOPEN(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_STOPEN) & BM_EPIT_CR_STOPEN)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the STOPEN field to a new value.
+#define BW_EPIT_CR_STOPEN(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_STOPEN) | BF_EPIT_CR_STOPEN(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field OM[23:22] (RW)
+ *
+ * EPIT output mode.This bit field determines the mode of EPIT output on the output pin.
+ *
+ * Values:
+ * - 00 - EPIT output is disconnected from pad
+ * - 01 - Toggle output pin
+ * - 10 - Clear output pin
+ * - 11 - Set output pin
+ */
+//@{
+#define BP_EPIT_CR_OM (22) //!< Bit position for EPIT_CR_OM.
+#define BM_EPIT_CR_OM (0x00c00000) //!< Bit mask for EPIT_CR_OM.
+
+//! @brief Get value of EPIT_CR_OM from a register value.
+#define BG_EPIT_CR_OM(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_OM) >> BP_EPIT_CR_OM)
+
+//! @brief Format value for bitfield EPIT_CR_OM.
+#define BF_EPIT_CR_OM(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_OM) & BM_EPIT_CR_OM)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the OM field to a new value.
+#define BW_EPIT_CR_OM(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_OM) | BF_EPIT_CR_OM(v)))
+#endif
+//@}
+
+/*! @name Register EPIT_CR, field CLKSRC[25:24] (RW)
+ *
+ * Select clock source These bits determine which clock input is to be selected for running the
+ * counter. This field value should only be changed when the EPIT is disabled by clearing the EN bit
+ * in this register. For other programming requirements while changing clock source, refer to .
+ *
+ * Values:
+ * - 00 - Clock is off
+ * - 01 - Peripheral clock
+ * - 10 - High-frequency reference clock
+ * - 11 - Low-frequency reference clock
+ */
+//@{
+#define BP_EPIT_CR_CLKSRC (24) //!< Bit position for EPIT_CR_CLKSRC.
+#define BM_EPIT_CR_CLKSRC (0x03000000) //!< Bit mask for EPIT_CR_CLKSRC.
+
+//! @brief Get value of EPIT_CR_CLKSRC from a register value.
+#define BG_EPIT_CR_CLKSRC(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CR_CLKSRC) >> BP_EPIT_CR_CLKSRC)
+
+//! @brief Format value for bitfield EPIT_CR_CLKSRC.
+#define BF_EPIT_CR_CLKSRC(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CR_CLKSRC) & BM_EPIT_CR_CLKSRC)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the CLKSRC field to a new value.
+#define BW_EPIT_CR_CLKSRC(x, v) (HW_EPIT_CR_WR(x, (HW_EPIT_CR_RD(x) & ~BM_EPIT_CR_CLKSRC) | BF_EPIT_CR_CLKSRC(v)))
+#endif
+//@}
+
+//-------------------------------------------------------------------------------------------
+// HW_EPIT_SR - Status register
+//-------------------------------------------------------------------------------------------
+
+#ifndef __LANGUAGE_ASM__
+/*!
+ * @brief HW_EPIT_SR - Status register (RW)
+ *
+ * Reset value: 0x00000000
+ *
+ * The EPIT status register (EPIT_SR) has a single status bit for the output compare event. The bit
+ * is a write 1 to clear bit.
+ */
+typedef union _hw_epit_sr {
+    reg32_t U;
+    struct _hw_epit_sr_bitfields {
+        unsigned OCIF : 1; //!< [0] Output compare interrupt flag.
+        unsigned RESERVED0 : 31; //!< [31:1] Reserved.
+    } B;
+} hw_epit_sr_t;
+#endif
+
+/*!
+ * @name Constants and macros for entire EPIT_SR register
+ */
+//@{
+#define HW_EPIT_SR_ADDR(x) (REGS_EPIT_BASE(x) + 0x4)
+
+#ifndef __LANGUAGE_ASM__
+#define HW_EPIT_SR(x) (*(volatile hw_epit_sr_t*)HW_EPIT_SR_ADDR(x))
+#define HW_EPIT_SR_RD(x) (HW_EPIT_SR(x).U)
+#define HW_EPIT_SR_WR(x, v) (HW_EPIT_SR(x).U = (v))
+#define HW_EPIT_SR_SET(x, v) (HW_EPIT_SR_WR(x, HW_EPIT_SR_RD(x) | (v)))
+#define HW_EPIT_SR_CLR(x, v) (HW_EPIT_SR_WR(x, HW_EPIT_SR_RD(x) & ~(v)))
+#define HW_EPIT_SR_TOG(x, v) (HW_EPIT_SR_WR(x, HW_EPIT_SR_RD(x) ^ (v)))
+#endif
+//@}
+
+/*
+ * constants & macros for individual EPIT_SR bitfields
+ */
+
+/*! @name Register EPIT_SR, field OCIF[0] (W1C)
+ *
+ * Output compare interrupt flag. This bit is the interrupt flag that is set when the content of
+ * counter equals the content of the compare register (EPIT_CMPR). The bit is a write 1 to clear
+ * bit.
+ *
+ * Values:
+ * - 0 - Compare event has not occurred
+ * - 1 - Compare event occurred
+ */
+//@{
+#define BP_EPIT_SR_OCIF (0) //!< Bit position for EPIT_SR_OCIF.
+#define BM_EPIT_SR_OCIF (0x00000001) //!< Bit mask for EPIT_SR_OCIF.
+
+//! @brief Get value of EPIT_SR_OCIF from a register value.
+#define BG_EPIT_SR_OCIF(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_SR_OCIF) >> BP_EPIT_SR_OCIF)
+
+//! @brief Format value for bitfield EPIT_SR_OCIF.
+#define BF_EPIT_SR_OCIF(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_SR_OCIF) & BM_EPIT_SR_OCIF)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the OCIF field to a new value.
+#define BW_EPIT_SR_OCIF(x, v) (HW_EPIT_SR_WR(x, (HW_EPIT_SR_RD(x) & ~BM_EPIT_SR_OCIF) | BF_EPIT_SR_OCIF(v)))
+#endif
+//@}
+
+//-------------------------------------------------------------------------------------------
+// HW_EPIT_LR - Load register
+//-------------------------------------------------------------------------------------------
+
+#ifndef __LANGUAGE_ASM__
+/*!
+ * @brief HW_EPIT_LR - Load register (RW)
+ *
+ * Reset value: 0xffffffff
+ *
+ * The EPIT load register (EPIT_LR) contains the value that is to be loaded into the counter when
+ * EPIT counter reaches zero if the RLD bit in EPIT_CR is set. If the IOVW bit in the EPIT_CR is set
+ * then a write to this register overwrites the value of the EPIT counter register in addition to
+ * updating this registers value. This overwrite feature is active even if the RLD bit is not set.
+ */
+typedef union _hw_epit_lr {
+    reg32_t U;
+    struct _hw_epit_lr_bitfields {
+        unsigned LOAD : 32; //!< [31:0] Load value.
+    } B;
+} hw_epit_lr_t;
+#endif
+
+/*!
+ * @name Constants and macros for entire EPIT_LR register
+ */
+//@{
+#define HW_EPIT_LR_ADDR(x) (REGS_EPIT_BASE(x) + 0x8)
+
+#ifndef __LANGUAGE_ASM__
+#define HW_EPIT_LR(x) (*(volatile hw_epit_lr_t*)HW_EPIT_LR_ADDR(x))
+#define HW_EPIT_LR_RD(x) (HW_EPIT_LR(x).U)
+#define HW_EPIT_LR_WR(x, v) (HW_EPIT_LR(x).U = (v))
+#define HW_EPIT_LR_SET(x, v) (HW_EPIT_LR_WR(x, HW_EPIT_LR_RD(x) | (v)))
+#define HW_EPIT_LR_CLR(x, v) (HW_EPIT_LR_WR(x, HW_EPIT_LR_RD(x) & ~(v)))
+#define HW_EPIT_LR_TOG(x, v) (HW_EPIT_LR_WR(x, HW_EPIT_LR_RD(x) ^ (v)))
+#endif
+//@}
+
+/*
+ * constants & macros for individual EPIT_LR bitfields
+ */
+
+/*! @name Register EPIT_LR, field LOAD[31:0] (RW)
+ *
+ * Load value. Value that is loaded into the counter at the start of each count cycle.
+ */
+//@{
+#define BP_EPIT_LR_LOAD (0) //!< Bit position for EPIT_LR_LOAD.
+#define BM_EPIT_LR_LOAD (0xffffffff) //!< Bit mask for EPIT_LR_LOAD.
+
+//! @brief Get value of EPIT_LR_LOAD from a register value.
+#define BG_EPIT_LR_LOAD(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_LR_LOAD) >> BP_EPIT_LR_LOAD)
+
+//! @brief Format value for bitfield EPIT_LR_LOAD.
+#define BF_EPIT_LR_LOAD(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_LR_LOAD) & BM_EPIT_LR_LOAD)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the LOAD field to a new value.
+#define BW_EPIT_LR_LOAD(x, v) (HW_EPIT_LR_WR(x, (HW_EPIT_LR_RD(x) & ~BM_EPIT_LR_LOAD) | BF_EPIT_LR_LOAD(v)))
+#endif
+//@}
+
+//-------------------------------------------------------------------------------------------
+// HW_EPIT_CMPR - Compare register
+//-------------------------------------------------------------------------------------------
+
+#ifndef __LANGUAGE_ASM__
+/*!
+ * @brief HW_EPIT_CMPR - Compare register (RW)
+ *
+ * Reset value: 0x00000000
+ *
+ * The EPIT compare register (EPIT_CMPR) holds the value that determines when a compare event is
+ * generated.
+ */
+typedef union _hw_epit_cmpr {
+    reg32_t U;
+    struct _hw_epit_cmpr_bitfields {
+        unsigned COMPARE : 32; //!< [31:0] Compare Value.
+    } B;
+} hw_epit_cmpr_t;
+#endif
+
+/*!
+ * @name Constants and macros for entire EPIT_CMPR register
+ */
+//@{
+#define HW_EPIT_CMPR_ADDR(x) (REGS_EPIT_BASE(x) + 0xc)
+
+#ifndef __LANGUAGE_ASM__
+#define HW_EPIT_CMPR(x) (*(volatile hw_epit_cmpr_t*)HW_EPIT_CMPR_ADDR(x))
+#define HW_EPIT_CMPR_RD(x) (HW_EPIT_CMPR(x).U)
+#define HW_EPIT_CMPR_WR(x, v) (HW_EPIT_CMPR(x).U = (v))
+#define HW_EPIT_CMPR_SET(x, v) (HW_EPIT_CMPR_WR(x, HW_EPIT_CMPR_RD(x) | (v)))
+#define HW_EPIT_CMPR_CLR(x, v) (HW_EPIT_CMPR_WR(x, HW_EPIT_CMPR_RD(x) & ~(v)))
+#define HW_EPIT_CMPR_TOG(x, v) (HW_EPIT_CMPR_WR(x, HW_EPIT_CMPR_RD(x) ^ (v)))
+#endif
+//@}
+
+/*
+ * constants & macros for individual EPIT_CMPR bitfields
+ */
+
+/*! @name Register EPIT_CMPR, field COMPARE[31:0] (RW)
+ *
+ * Compare Value. When the counter value equals this bit field value a compare event is generated.
+ */
+//@{
+#define BP_EPIT_CMPR_COMPARE (0) //!< Bit position for EPIT_CMPR_COMPARE.
+#define BM_EPIT_CMPR_COMPARE (0xffffffff) //!< Bit mask for EPIT_CMPR_COMPARE.
+
+//! @brief Get value of EPIT_CMPR_COMPARE from a register value.
+#define BG_EPIT_CMPR_COMPARE(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CMPR_COMPARE) >> BP_EPIT_CMPR_COMPARE)
+
+//! @brief Format value for bitfield EPIT_CMPR_COMPARE.
+#define BF_EPIT_CMPR_COMPARE(v) ((__REG_VALUE_TYPE((v), reg32_t) << BP_EPIT_CMPR_COMPARE) & BM_EPIT_CMPR_COMPARE)
+
+#ifndef __LANGUAGE_ASM__
+//! @brief Set the COMPARE field to a new value.
+#define BW_EPIT_CMPR_COMPARE(x, v) (HW_EPIT_CMPR_WR(x, (HW_EPIT_CMPR_RD(x) & ~BM_EPIT_CMPR_COMPARE) | BF_EPIT_CMPR_COMPARE(v)))
+#endif
+//@}
+
+//-------------------------------------------------------------------------------------------
+// HW_EPIT_CNR - Counter register
+//-------------------------------------------------------------------------------------------
+
+#ifndef __LANGUAGE_ASM__
+/*!
+ * @brief HW_EPIT_CNR - Counter register (RO)
+ *
+ * Reset value: 0xffffffff
+ *
+ * The EPIT counter register (EPIT_CNR) contains the current count value and can be read at any time
+ * without disturbing the counter. This is a read-only register and any attempt to write into it
+ * generates a transfer error. But if the IOVW bit in EPIT_CR is set, the value of this register can
+ * be overwritten with a write to EPIT_LR. This change is reflected when this register is
+ * subsequently read.
+ */
+typedef union _hw_epit_cnr {
+    reg32_t U;
+    struct _hw_epit_cnr_bitfields {
+        unsigned COUNT : 32; //!< [31:0] Counter value.
+    } B;
+} hw_epit_cnr_t;
+#endif
+
+/*!
+ * @name Constants and macros for entire EPIT_CNR register
+ */
+//@{
+#define HW_EPIT_CNR_ADDR(x) (REGS_EPIT_BASE(x) + 0x10)
+
+#ifndef __LANGUAGE_ASM__
+#define HW_EPIT_CNR(x) (*(volatile hw_epit_cnr_t*)HW_EPIT_CNR_ADDR(x))
+#define HW_EPIT_CNR_RD(x) (HW_EPIT_CNR(x).U)
+#endif
+//@}
+
+/*
+ * constants & macros for individual EPIT_CNR bitfields
+ */
+
+/*! @name Register EPIT_CNR, field COUNT[31:0] (RO)
+ *
+ * Counter value. This contains the current value of the counter.
+ */
+//@{
+#define BP_EPIT_CNR_COUNT (0) //!< Bit position for EPIT_CNR_COUNT.
+#define BM_EPIT_CNR_COUNT (0xffffffff) //!< Bit mask for EPIT_CNR_COUNT.
+
+//! @brief Get value of EPIT_CNR_COUNT from a register value.
+#define BG_EPIT_CNR_COUNT(r) ((__REG_VALUE_TYPE((r), reg32_t) & BM_EPIT_CNR_COUNT) >> BP_EPIT_CNR_COUNT)
+//@}
+
+//-------------------------------------------------------------------------------------------
+// hw_epit_t - module struct
+//-------------------------------------------------------------------------------------------
+/*!
+ * @brief All EPIT module registers.
+ */
+#ifndef __LANGUAGE_ASM__
+#pragma pack(1)
+typedef struct _hw_epit {
+    volatile hw_epit_cr_t CR; //!< Control register
+    volatile hw_epit_sr_t SR; //!< Status register
+    volatile hw_epit_lr_t LR; //!< Load register
+    volatile hw_epit_cmpr_t CMPR; //!< Compare register
+    volatile hw_epit_cnr_t CNR; //!< Counter register
+} hw_epit_t;
+#pragma pack()
+
+//! @brief Macro to access all EPIT registers.
+//! @param x EPIT instance number.
+//! @return Reference (not a pointer) to the registers struct. To get a pointer to the struct,
+//!     use the '&' operator, like <code>&HW_EPIT(0)</code>.
+#define HW_EPIT(x) (*(hw_epit_t*)REGS_EPIT_BASE(x))
+#endif
+
+#endif // __HW_EPIT_REGISTERS_H__
+// v18/121106/1.2.2
+// EOF
diff --git a/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a55/core.h b/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a55/core.h
index c9667450f..936804fbb 100644
--- a/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a55/core.h
+++ b/Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a55/core.h
@@ -33,7 +33,7 @@ Modification:
 #define NO_INT 0x80 // disable IRQ.
 #define DIS_INT 0xc0 // disable both IRQ and FIQ.
 
-#define MODE_STACK_SIZE 0x1000
+#define MODE_STACK_SIZE 0x2000
 
 //! @name SPSR fields
 //@{
@@ -73,7 +73,14 @@ Modification:
 
 #include "cortex_a55.h"
 
-#define NR_CPU 4 // maximum number of CPUs
+#define NR_CPU 1 // maximum number of CPUs
+
+static inline uintptr_t arch_curr_tick()
+{
+    uint64_t x;
+    __asm__ volatile("mrs %0, cntpct_el0" : "=r"(x));
+    return x;
+}
 
 __attribute__((always_inline)) static inline uint64_t EL0_mode() // Set ARM mode to EL0
 {
diff --git a/Ubiquitous/XiZi_AIoT/services/app/Makefile b/Ubiquitous/XiZi_AIoT/services/app/Makefile
index da69f6587..30e0585f0 100644
--- a/Ubiquitous/XiZi_AIoT/services/app/Makefile
+++ b/Ubiquitous/XiZi_AIoT/services/app/Makefile
@@ -43,9 +43,19 @@ INC_DIR = 	-I$(KERNEL_ROOT)/services/shell/letter-shell \
 			-I$(KERNEL_ROOT)/services/app 
 
 ifeq ($(BOARD), imx6q-sabrelite)
-all: test_fault simple_client simple_server shell fs_server semaphore_server test_sleep test_semaphore test_ipc_null test_thread test_irq_hdlr test_irq_block test_irq_send eth_driver epit_server  readme.txt | bin
+all: pingpong_client pingpong_server \
+	test_fault simple_client simple_server \
+	shell fs_server semaphore_server \
+	test_sleep test_semaphore test_ipc_null test_thread test_irq_hdlr test_irq_block test_irq_send \
+	eth_driver epit_server  readme.txt | bin
 else 
-all: test_fault simple_client simple_server shell fs_server semaphore_server test_sleep test_ipc_null test_thread test_semaphore test_net lwip readme.txt eth_hal | bin
+all: pingpong_client pingpong_server \
+	test_fault simple_client simple_server \
+	shell fs_server semaphore_server \
+	test_irq_hdlr \
+	test_sleep test_ipc_null test_thread test_semaphore readme.txt \
+	test_context_user \
+	| bin
 endif
 	../tools/mkfs/mkfs ./fs.img $^
 	@mv $(filter-out readme.txt, $^) bin
@@ -69,9 +79,21 @@ epit_server: timer.o epit.o ccm_pll.o usyscall.o arch_usyscall.o libserial.o pri
 	@${objdump} -S $@ > $@.asm
 endif
 
+pingpong_client: pingpong_service.o pingpong_client.o libserial.o printf.o libipc.o session.o libfs.o usyscall.o arch_usyscall.o  libmem.o
+	@${ld} ${user_ldflags} -e main -o $@ $^ ${board_specs}
+	@${objdump} -S $@ > $@.asm
+
+pingpong_server: pingpong_service.o pingpong_server.o libserial.o printf.o libipc.o session.o libfs.o usyscall.o arch_usyscall.o  libmem.o
+	@${ld} ${user_ldflags} -e main -o $@ $^ ${board_specs}
+	@${objdump} -S $@ > $@.asm
+
 test_sleep: test_sleep.o libserial.o printf.o usyscall.o arch_usyscall.o
 	@${ld} ${user_ldflags} -e main -o $@ $^ ${board_specs}
 	@${objdump} -S $@ > $@.asm
+	
+test_context_user: test_context_user.o libserial.o printf.o usyscall.o arch_usyscall.o
+	@${ld} ${user_ldflags} -e main -o $@ $^ ${board_specs}
+	@${objdump} -S $@ > $@.asm
 
 test_semaphore: test_semaphore.o libserial.o printf.o usyscall.o arch_usyscall.o
 	@${ld} ${user_ldflags} -e main -o $@ $^ ${board_specs}
@@ -129,8 +151,4 @@ test_net: test_net.o lwip_service.o libipc.o session.o libserial.o printf.o usys
 	@${cc} ${cflags} ${c_useropts} ${INC_DIR} -o $@ -c $< 
 
 %.o: %.S
-	@${cc} ${cflags} ${c_useropts} -o $@ -c $< 
-
-eth_hal: test_gmac.o hal_gmac.o hal_gmac_3568.o hal_base.o hal_bsp.o hal_pinctrl_v2.o hal_cru.o hal_gpio.o hal_timer.o hal_cru_rk3568.o system_rk3568.o hal_debug.o libserial.o printf.o libmem.o usyscall.o arch_usyscall.o session.o libipc.o 
-	@${ld} ${user_ldflags} -e main -o $@ $^ ${board_specs}
-	@${objdump} -S $@ > $@.asm
\ No newline at end of file
+	@${cc} ${cflags} ${c_useropts} -o $@ -c $< 
\ No newline at end of file
diff --git a/Ubiquitous/XiZi_AIoT/services/app/pingpong_client.c b/Ubiquitous/XiZi_AIoT/services/app/pingpong_client.c
new file mode 100755
index 000000000..400bf0f8a
--- /dev/null
+++ b/Ubiquitous/XiZi_AIoT/services/app/pingpong_client.c
@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2020 AIIT XUOS Lab
+ * XiUOS is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *        http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+#include <assert.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "libfs.h"
+#include "libserial.h"
+#include "pingpong_service.h"
+#include "usyscall.h"
+
+int string_to_integer(const char* str)
+{
+    assert(str);
+    while (*str == ' ') {
+        str++;
+    }
+    int is_positive = 1; // 默认是正
+    if (*str - '+' == 0) {
+        is_positive = 1;
+        str++;
+    }
+    if (*str - '-' == 0) {
+        is_positive = 0;
+        str++;
+    }
+    long long result = 0; // int可能存不下 改为long long较为合适虽然返回值会丢失精度但感觉不要紧
+    while ('0' <= *str && *str <= '9') {
+        result *= 10;
+        result += *str - '0'; // 如'1' ascii的值为 49 '0'的ascii的值为48 相减得到1
+
+        if (result > INT32_MAX || result < INT32_MIN) // 可能出现的溢出问题
+        {
+            return result > INT32_MAX ? INT32_MAX : INT32_MIN;
+        }
+
+        str++;
+    }
+    return is_positive ? (result) : -result;
+}
+
+void itoa(int num, char* str, int radix)
+{
+    int i = 0;
+    int sum;
+    unsigned int num1 = num; // 如果是负数求补码，必须将他的绝对值放在无符号位中在进行求反码
+    char str1[33] = { 0 };
+    if (num < 0) { // 求出负数的补码
+        num = -num;
+        num1 = ~num;
+        num1 += 1;
+    }
+    if (num == 0) {
+        str1[i] = '0';
+
+        i++;
+    }
+    while (num1 != 0) { // 进行进制运算
+        sum = num1 % radix;
+        str1[i] = (sum > 9) ? (sum - 10) + 'a' : sum + '0';
+        num1 = num1 / radix;
+        i++;
+    }
+    i--;
+    int j = 0;
+    for (i; i >= 0; i--) { // 逆序输出
+        str[i] = str1[j];
+        j++;
+    }
+}
+
+uintptr_t pingpong_sample(struct Session* session, int times)
+{
+    char* msg = "hello";
+    uintptr_t tick1 = sys_test();
+    for (int i = 0; i < times; i++) {
+        uintptr_t tmp = sys_test();
+    }
+    uintptr_t tick2 = sys_test();
+    uintptr_t time = (tick2 - tick1) / 24;
+    // printf("Sync Tick Cost: %lu\n", time);
+    return time;
+}
+
+uintptr_t pingpong_test_sync(struct Session* session, int times)
+{
+    char* msg = "hello";
+    uintptr_t tick1 = sys_test();
+    for (int i = 0; i < times; i++) {
+        pingpong(session, msg);
+    }
+    uintptr_t tick2 = sys_test();
+    uintptr_t time = (tick2 - tick1) / 24;
+    // printf("Sync Tick Cost: %lu\n", time);
+    return time;
+}
+
+uintptr_t pingpong_test_async(struct Session* session, int times)
+{
+    char* msg = "hello";
+    uintptr_t tick1 = sys_test();
+    for (int i = 0; i < times; i++) {
+        pingpong_nowait(session, msg);
+    }
+
+    for (int i = 0; i < times; i++) {
+        ipc_session_wait(session);
+        ipc_session_forward(session);
+    }
+    uintptr_t tick2 = sys_test();
+    uintptr_t time = (tick2 - tick1) / 24;
+    // printf("ASync Tick Cost: %lu\n", (tick2 - tick1) / 24);
+    return time;
+}
+
+int main(int argc, char** argv)
+{
+    int times = 0;
+    if (argc >= 2) {
+        times = string_to_integer(argv[1]);
+    }
+
+    struct Session session;
+    if (connect_session(&session, "PingPongServer", 81920) < 0) {
+        printf("connect session failed\n");
+        exit(1);
+    }
+
+    printf("============ PingPong Test start ==============\n");
+    uintptr_t loop = 50;
+    uintptr_t t1 = 0, t2 = 0, t0 = 0;
+    for (uintptr_t i = 0; i < loop; i++) {
+        t0 += pingpong_sample(&session, times);
+        t1 += pingpong_test_sync(&session, times);
+        t2 += pingpong_test_async(&session, times);
+    }
+
+    printf("Compare Tick Cost: %lu\n", t0 / loop);
+    printf("Sync Tick Cost: %lu\n", t1 / loop);
+    printf("ASync Tick Cost: %lu\n", t2 / loop);
+    printf("============= PingPong Test End ===============\n");
+
+    exit(0);
+}
diff --git a/Ubiquitous/XiZi_AIoT/services/app/pingpong_server.c b/Ubiquitous/XiZi_AIoT/services/app/pingpong_server.c
new file mode 100755
index 000000000..06f16d7af
--- /dev/null
+++ b/Ubiquitous/XiZi_AIoT/services/app/pingpong_server.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2020 AIIT XUOS Lab
+ * XiUOS is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *        http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+#include <stdbool.h>
+
+#include "libserial.h"
+#include "pingpong_service.h"
+#include "usyscall.h"
+
+/// @warning all the parameters should in the form of pointers
+///          for the true storing memory of parameters is session(shared memory between tasks)
+int IPC_DO_SERVE_FUNC(Ipc_pingpong)(char* str)
+{
+    return 0;
+}
+
+IPC_SERVER_INTERFACE(Ipc_pingpong, 1);
+IPC_SERVER_REGISTER_INTERFACES(IpcPingPongServer, 1, Ipc_pingpong);
+
+int main(int argc, char* argv[])
+{
+    if (register_server("PingPongServer") < 0) {
+        printf("register server name: %s failed.\n", "PingPong");
+        exit(1);
+    }
+    ipc_server_loop(&IpcPingPongServer);
+
+    // never reached
+    exit(0);
+    return 0;
+}
\ No newline at end of file
diff --git a/Ubiquitous/XiZi_AIoT/services/app/pingpong_service.c b/Ubiquitous/XiZi_AIoT/services/app/pingpong_service.c
new file mode 100644
index 000000000..9bc9e49d1
--- /dev/null
+++ b/Ubiquitous/XiZi_AIoT/services/app/pingpong_service.c
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2020 AIIT XUOS Lab
+ * XiUOS is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *        http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+#include "pingpong_service.h"
+
+IPC_INTERFACE(Ipc_pingpong, 1, str, strlen(str));
+int pingpong(struct Session* session, char* str)
+{
+    return IPC_CALL(Ipc_pingpong)(session, str);
+}
+
+void pingpong_nowait(struct Session* session, char* str)
+{
+    struct IpcMsg* msg = IPC_CREATE_MSG_FUNC(Ipc_pingpong)(session, str);
+    ipc_msg_set_nth_arg(msg, 0, str, strlen(str));
+    ipc_msg_set_opcode(msg, Ipc_pingpong);
+    ipc_msg_send_nowait(msg);
+}
diff --git a/Ubiquitous/XiZi_AIoT/services/app/pingpong_service.h b/Ubiquitous/XiZi_AIoT/services/app/pingpong_service.h
new file mode 100644
index 000000000..15e824bd7
--- /dev/null
+++ b/Ubiquitous/XiZi_AIoT/services/app/pingpong_service.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2020 AIIT XUOS Lab
+ * XiUOS is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *        http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+#include <stdbool.h>
+#include <string.h>
+
+#include "libipc.h"
+
+IPC_SERVICES(IpcPingPongServer, Ipc_pingpong);
+
+int pingpong(struct Session* session, char* str);
+void pingpong_nowait(struct Session* session, char* str);
diff --git a/Ubiquitous/XiZi_AIoT/services/app/test_context_user.c b/Ubiquitous/XiZi_AIoT/services/app/test_context_user.c
new file mode 100644
index 000000000..9b5eca355
--- /dev/null
+++ b/Ubiquitous/XiZi_AIoT/services/app/test_context_user.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2020 AIIT XUOS Lab
+ * XiUOS is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *        http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+#include "libserial.h"
+#include "usyscall.h"
+
+static inline uintptr_t arch_curr_tick()
+{
+    uint64_t x;
+    __asm__ volatile("mrs %0, cntpct_el0" : "=r"(x));
+    return x;
+}
+
+int main(int argc, char* argv[])
+{
+    uintptr_t loop = 1000;
+    uintptr_t tick_total = 0;
+    for (uintptr_t i = 0; i < loop; i++) {
+        uintptr_t tick_1 = sys_test();
+        uintptr_t tick_2 = sys_test();
+        // printf("TICK before: %lu\n", tick_1);
+        // printf("TICK after: %lu\n", tick_2);
+        // printf("TICK diff: %lu\n", tick_2 - tick_1);
+        tick_total += tick_2 - tick_1;
+    }
+
+    printf("TICK DIFF: %lu\n", tick_total / loop);
+
+    printf("TEST TICK: %lu\n", arch_curr_tick());
+
+    exit(0);
+    return 0;
+}
diff --git a/Ubiquitous/XiZi_AIoT/services/boards/3568/arch_usyscall.c b/Ubiquitous/XiZi_AIoT/services/boards/3568/arch_usyscall.c
index cd1bf7b40..f0d0b50e3 100644
--- a/Ubiquitous/XiZi_AIoT/services/boards/3568/arch_usyscall.c
+++ b/Ubiquitous/XiZi_AIoT/services/boards/3568/arch_usyscall.c
@@ -15,6 +15,27 @@ int syscall(int sys_num, intptr_t a1, intptr_t a2, intptr_t a3, intptr_t a4)
 {
     int ret = -1;
 
+    __asm__ volatile(
+        "mov x0, %1;\
+        mov x1, %2;\
+        mov x2, %3;\
+        mov x3, %4;\
+        mov x4, %5;\
+        svc #0;\
+        dsb ish;\
+        isb;\
+        mov %0, x0"
+        : "=r"(ret)
+        : "r"(sys_num), "r"(a1), "r"(a2), "r"(a3), "r"(a4)
+        : "memory", "r0", "r1", "r2", "r3", "r4");
+
+    return ret;
+}
+
+uintptr_t syscall_ori(int sys_num, intptr_t a1, intptr_t a2, intptr_t a3, intptr_t a4)
+{
+    uintptr_t ret = -1;
+
     __asm__ volatile(
         "mov x0, %1;\
         mov x1, %2;\
diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/3568/Makefile b/Ubiquitous/XiZi_AIoT/services/drivers/3568/Makefile
index 2c285fffa..6988b8d76 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/3568/Makefile
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/3568/Makefile
@@ -1,4 +1,4 @@
 
-SRC_DIR := hal
+SRC_DIR :=
 
 include $(KERNEL_ROOT)/compiler.mk
\ No newline at end of file
diff --git a/Ubiquitous/XiZi_AIoT/services/fs/fs_server/fs.c b/Ubiquitous/XiZi_AIoT/services/fs/fs_server/fs.c
index d4c2243e2..a9d5aaa96 100644
--- a/Ubiquitous/XiZi_AIoT/services/fs/fs_server/fs.c
+++ b/Ubiquitous/XiZi_AIoT/services/fs/fs_server/fs.c
@@ -63,7 +63,7 @@ static struct FileDescriptor fd_table[MAX_SUPPORT_FD];
 struct MemFsRange MemFsRange;
 
 /// @brief Using syscall to get fs.img real location in the memory
-void MemFsInit(uintptr_t _binary_fs_img_start, uint32_t fs_img_len)
+void MemFsInit(uintptr_t _binary_fs_img_start, uintptr_t fs_img_len)
 {
     MemFsRange.memfs_start = _binary_fs_img_start;
     MemFsRange.memfs_nr_blocks = fs_img_len / BLOCK_SIZE;
@@ -251,12 +251,12 @@ struct Inode* InodeParentSeek(struct Inode* source, char* path, char* name)
 /// @brief Alloc a new Inode using type
 static struct Inode* InodeAlloc(int type)
 {
-    int inum;
+    int inum = 0;
     struct Inode* inode;
     struct SuperBlock sb;
 
     ReadSuperBlock(&sb);
-    for (inum = 1; inum < sb.ninodes; inum++) {
+    for (inum = 1; inum < (int)sb.ninodes; inum++) {
         uint8_t* block = BlockRead(BLOCK_INDEX(inum));
         inode = (struct Inode*)block + INODE_INDEX(inum);
         if (inode->type == 0) {
diff --git a/Ubiquitous/XiZi_AIoT/services/fs/fs_server/fs_server.c b/Ubiquitous/XiZi_AIoT/services/fs/fs_server/fs_server.c
index 3bfc42b89..c7a8fb99d 100644
--- a/Ubiquitous/XiZi_AIoT/services/fs/fs_server/fs_server.c
+++ b/Ubiquitous/XiZi_AIoT/services/fs/fs_server/fs_server.c
@@ -352,10 +352,10 @@ int main(int argc, char* argv[])
     sys_state_info info;
     get_memblock_info(&info);
 
-    int len = info.memblock_info.memblock_end - info.memblock_info.memblock_start;
+    uintptr_t len = info.memblock_info.memblock_end - info.memblock_info.memblock_start;
     mmap(FS_IMG_ADDR, info.memblock_info.memblock_start, len, false);
 
-    MemFsInit((uintptr_t)FS_IMG_ADDR, (uint32_t)len);
+    MemFsInit((uintptr_t)FS_IMG_ADDR, (uintptr_t)len);
 
     if (register_server("MemFS") < 0) {
         printf("register server name: %s failed.\n", "MemFs");
diff --git a/Ubiquitous/XiZi_AIoT/services/fs/fs_server/include/fs.h b/Ubiquitous/XiZi_AIoT/services/fs/fs_server/include/fs.h
index 17a536ece..a26a1a758 100644
--- a/Ubiquitous/XiZi_AIoT/services/fs/fs_server/include/fs.h
+++ b/Ubiquitous/XiZi_AIoT/services/fs/fs_server/include/fs.h
@@ -61,7 +61,7 @@ Modification:
 // memory fs range
 struct MemFsRange {
     uintptr_t memfs_start;
-    uint32_t memfs_nr_blocks;
+    uintptr_t memfs_nr_blocks;
 };
 
 // memfs file type
@@ -89,9 +89,9 @@ struct Inode {
 };
 
 // directory entry
-#define DIR_NAME_SIZE 30
+#define DIR_NAME_SIZE 28
 struct DirectEntry {
-    uint16_t inum;
+    uint32_t inum;
     char name[DIR_NAME_SIZE];
 };
 
@@ -105,7 +105,7 @@ struct FileDescriptor {
 // range of memory fs
 extern struct MemFsRange MemFsRange;
 
-void MemFsInit(uintptr_t _binary_fs_img_start, uint32_t fs_img_len);
+void MemFsInit(uintptr_t _binary_fs_img_start, uintptr_t fs_img_len);
 void ReadSuperBlock(struct SuperBlock*);
 
 // fs Inode ops
diff --git a/Ubiquitous/XiZi_AIoT/services/lib/usyscall/usyscall.c b/Ubiquitous/XiZi_AIoT/services/lib/usyscall/usyscall.c
index 3e6d151ab..3b4d215f2 100644
--- a/Ubiquitous/XiZi_AIoT/services/lib/usyscall/usyscall.c
+++ b/Ubiquitous/XiZi_AIoT/services/lib/usyscall/usyscall.c
@@ -12,6 +12,11 @@
 #include "usyscall.h"
 #include "libmem.h"
 
+uintptr_t sys_test()
+{
+    return syscall(SYSCALL_TEST, 0, 0, 0, 0);
+}
+
 int spawn(struct Session* session, int fd, ipc_read_fn ipc_read, ipc_fsize_fn ipc_fsize, char* name, char** argv)
 {
     /* read elf image */
diff --git a/Ubiquitous/XiZi_AIoT/services/lib/usyscall/usyscall.h b/Ubiquitous/XiZi_AIoT/services/lib/usyscall/usyscall.h
index 459ff099c..79cc81ed3 100644
--- a/Ubiquitous/XiZi_AIoT/services/lib/usyscall/usyscall.h
+++ b/Ubiquitous/XiZi_AIoT/services/lib/usyscall/usyscall.h
@@ -91,6 +91,9 @@ typedef int (*ipc_fsize_fn)(struct Session* session, int fd);
 typedef int (*ipc_write_fn)(struct Session* session, int fd, char* src, int offset, int len);
 
 int syscall(int sys_num, intptr_t a1, intptr_t a2, intptr_t a3, intptr_t a4);
+uintptr_t syscall_ori(int sys_num, intptr_t a1, intptr_t a2, intptr_t a3, intptr_t a4);
+
+uintptr_t sys_test();
 
 int spawn(struct Session* session, int fd, ipc_read_fn ipc_read, ipc_fsize_fn ipc_fsize, char* name, char** argv);
 int thread(void* entry, const char* name, char** argv);
diff --git a/Ubiquitous/XiZi_AIoT/services/tools/mkfs/mkfs.h b/Ubiquitous/XiZi_AIoT/services/tools/mkfs/mkfs.h
index e44e96798..e58a1873c 100755
--- a/Ubiquitous/XiZi_AIoT/services/tools/mkfs/mkfs.h
+++ b/Ubiquitous/XiZi_AIoT/services/tools/mkfs/mkfs.h
@@ -83,8 +83,8 @@ struct Inode {
 };
 
 // Directory is a file containing a sequence of DirEntry structures.
-#define DIR_NAME_SIZE 30
+#define DIR_NAME_SIZE 28
 struct DirEntry {
-    ushort inum;
+    __uint32_t inum;
     char name[DIR_NAME_SIZE];
 };
diff --git a/Ubiquitous/XiZi_AIoT/softkernel/include/buddy.h b/Ubiquitous/XiZi_AIoT/softkernel/include/buddy.h
index 65f796af6..6c40ba152 100644
--- a/Ubiquitous/XiZi_AIoT/softkernel/include/buddy.h
+++ b/Ubiquitous/XiZi_AIoT/softkernel/include/buddy.h
@@ -35,7 +35,7 @@ Modification:
 #include <stdbool.h>
 #include <stdint.h>
 
-#define MAX_BUDDY_ORDER (14)
+#define MAX_BUDDY_ORDER (18)
 
 #define FREE_LIST_INDEX(order) \
     (1 << order)
diff --git a/Ubiquitous/XiZi_AIoT/softkernel/include/log.h b/Ubiquitous/XiZi_AIoT/softkernel/include/log.h
index a56c0e84c..ea7046668 100644
--- a/Ubiquitous/XiZi_AIoT/softkernel/include/log.h
+++ b/Ubiquitous/XiZi_AIoT/softkernel/include/log.h
@@ -35,6 +35,8 @@ Modification:
 #define OUTPUT_LEVLE_DEBUG 1
 #define OUTPUT_LEVLE_ERROR 2
 
+#define OUTPUT_LEVEL_TEST 3
+
 #define OUTPUT_LEVLE OUTPUT_LEVLE_DEBUG
 // #define OUTPUT_LEVLE OUTPUT_LEVLE_LOG
 
@@ -56,10 +58,21 @@ Modification:
 #define DEBUG_PRINTF(f, args...)
 #endif
 
-#define DEBUG(f, args...)              \
+#if (OUTPUT_LEVLE >= OUTPUT_LEVLE_TEST)
+#define RECORD_PRINTF(f, args...) \
+    KPrintf(f, ##args)
+#else
+#define RECORD_PRINTF(f, args...)
+#endif
+
+#define DEBUG(f, args...)                   \
     DEBUG_PRINTF("DEBUG: [%s] ", __func__); \
     DEBUG_PRINTF(f, ##args)
 
+#define RECORD(f, args...)                   \
+    RECORD_PRINTF("DEBUG: [%s] ", __func__); \
+    RECORD_PRINTF(f, ##args)
+
 #define ERROR(f, args...)                           \
     KPrintf("ERROR: [%s %d] ", __func__, __LINE__); \
     KPrintf(f, ##args)
diff --git a/Ubiquitous/XiZi_AIoT/softkernel/syscall/syscall.c b/Ubiquitous/XiZi_AIoT/softkernel/syscall/syscall.c
index 76135f24c..a0e2291e2 100644
--- a/Ubiquitous/XiZi_AIoT/softkernel/syscall/syscall.c
+++ b/Ubiquitous/XiZi_AIoT/softkernel/syscall/syscall.c
@@ -39,7 +39,7 @@ int syscall(int sys_num, uintptr_t param1, uintptr_t param2, uintptr_t param3, u
 
     switch (sys_num) {
     case SYSCALL_TEST:
-        ret = 0;
+        ret = arch_curr_tick();
         break;
     case SYSCALL_SPAWN:
         ret = sys_spawn((char*)param1, (char*)param2, (char**)param3);