board: nsim: add nsim.props and fix libraries

Signed-off-by: Jingru <jingru@synopsys.com>

.vscode/settings.json

@@ -4,6 +4,10 @@
         "arc_timer.h": "c",
         "board.h": "c",
         "console_io.h": "c",
-        "xprintf.h": "c"
+        "xprintf.h": "c",
+        "array": "c",
+        "string_view": "c",
+        "initializer_list": "c",
+        "utility": "c"
     }
 }

arch/arc/nsim/common/include/tos_cpu.h

@@ -21,6 +21,7 @@
 typedef struct cpu_context_st {
     cpu_data_t      pc;
     cpu_data_t      blink;
+    cpu_data_t      task;
     cpu_data_t      status32;
     cpu_data_t      r0;
 } cpu_context_t;

arch/arc/nsim/common/tos_cpu.c

@@ -188,7 +188,7 @@ __KNL__ void cpu_standby_mode_enter(void)
 }
 
 #endif /* TOS_CFG_PWR_MGR_EN */
-
+extern void start_r(void);
 __KNL__ k_stack_t *cpu_task_stk_init(void *entry,
                                               void *arg,
                                               void *exit,
@@ -199,15 +199,16 @@ __KNL__ k_stack_t *cpu_task_stk_init(void *entry,
     cpu_context_t *regs = 0;
 
     sp = (cpu_data_t *)&stk_base[stk_size];
-    sp = (cpu_data_t *)((cpu_addr_t)sp & 0xFFFFFFFC);
+    sp = (cpu_data_t *)((cpu_addr_t)sp & 0xFFFFFFC);
     sp  -= (sizeof(cpu_context_t)/sizeof(cpu_data_t));
     regs = (cpu_context_t*) sp;
 
-    /* auto-saved on exception(pendSV) by hardware */
+    regs->pc = (cpu_data_t)start_r;
-    regs->pc = (cpu_data_t)entry;
     regs->blink = (cpu_data_t)exit;
-    regs->r0    = (cpu_data_t)arg;
+    regs->task = (cpu_data_t)entry;
     regs->status32   = (cpu_data_t)(AUX_STATUS_MASK_IE | ((-1 - INT_PRI_MIN) << 1) | STATUS32_RESET_VALUE);
+    regs->r0    = (cpu_data_t)arg;
+
 
     return (k_stack_t *)sp;
 }

arch/arc/nsim/em/gcc/port_s.S

@@ -7,6 +7,8 @@
     .global port_sched_start
     .global port_context_switch
 
+    .global start_r
+
 
     .extern k_curr_task
     .extern k_next_task
@@ -40,18 +42,26 @@ port_cpsr_restore:
 
 .type port_sched_start, %function
 port_sched_start:
-    push_s	blink
+    ld r0, [k_curr_task]
-    clri
+    ld r1, [k_next_task]
-    mov r0, 0
-    mov r0, k_curr_task
-    mov r1, k_next_task
     ld r2, [r1]
-    st r2, [r0]   /* k_curr_task = k_next_task*/
+    st r2, [r0] /*k_curr_task=k_next_task*/
-    ld sp, [r2] 
+    ld r0, [r2]
-    seti
+    ld sp, [r0]
-    j	[r0]
+    pop r3
+    j [r3]
 
 
+.type start_r, %function
+start_r:
+	pop blink;
+	pop r1
+	pop r2
+	pop r0
+
+	j_s.d [r1]
+	kflag r2
+
 .type port_context_switch, %function
 port_context_switch:
     pop r15

board/ARC_NSIM_EM/BSP/Src/main.c

@@ -1,28 +1,7 @@
 #include "cmsis_os.h"
-#include "embARC.h"
-#include "embARC_debug.h"
 
-static uint32_t cyc_hz_count = (BOARD_CPU_CLOCK / BOARD_SYS_TIMER_HZ);
+#define APPLICATION_TASK_STK_SIZE       1024*64
 
-static void board_timer_isr(void *ptr)
-{
-	timer_int_clear(BOARD_SYS_TIMER_ID);
-
-	board_timer_update(BOARD_SYS_TIMER_HZ);
-}
-
-static void board_timer_init(void)
-{
-	if (timer_present(BOARD_SYS_TIMER_ID)) {
-		int_disable(BOARD_SYS_TIMER_INTNO);                                             /* disable first then enable */
-		int_handler_install(BOARD_SYS_TIMER_INTNO, board_timer_isr);
-		timer_start(BOARD_SYS_TIMER_ID, TIMER_CTRL_IE | TIMER_CTRL_NH, cyc_hz_count);   /* start 1ms timer interrupt */
-
-		int_enable(BOARD_SYS_TIMER_INTNO);
-	}
-}
-
-#define APPLICATION_TASK_STK_SIZE       4096
 extern void application_entry(void *arg);
 osThreadDef(application_entry, osPriorityNormal, 1, APPLICATION_TASK_STK_SIZE);
 
@@ -36,14 +15,8 @@ EMBARC_WEAK void application_entry(void *arg)
 
 int main(void)
 {
-    exc_int_init();
-    arc_cache_init();
-    board_init();
-    board_timer_init();
-    xprintf_setup();
     printf("Welcome to TencentOS tiny\r\n");
     osKernelInitialize(); // TOS Tiny kernel initialize
     osThreadCreate(osThread(application_entry), NULL); // Create TOS Tiny task
     osKernelStart(); // Start TOS Tiny
 }
-

board/ARC_NSIM_EM/GCC/hello_world/Makefile

@@ -178,8 +178,8 @@ CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)"
 # link script
 LDSCRIPT = linker_template_gnu.ldf
 
-# libraries
+# libraries -lc -lm -lnosys
-LIBS = -lc -lm -lnosys 
+LIBS =  -lc -lgcc
 LIBDIR = 
 LDFLAGS = --specs=nsim.specs -mcpu=em4_dmips -mlittle-endian -mcode-density -mdiv-rem -mswap -mnorm -mmpy-option=6 -mbarrel-shifter --param l1-cache-size=16384 --param l1-cache-line-size=32 $(LIBDIR) $(LIBS) -mno-sdata -nostartfiles -Wl,-M,-Map=$(BUILD_DIR)/$(TARGET).map -lm -Wl,--script=$(LDSCRIPT)
 
@@ -227,6 +227,8 @@ $(BUILD_DIR):
 clean:
 	-rm -fR $(BUILD_DIR)
 
+run : build/TencentOS_tiny.elf
+	nsimdrv -p nsim_emt=1 -propsfile nsim.props build/TencentOS_tiny.elf
 #######################################
 # dependencies
 #######################################

board/ARC_NSIM_EM/GCC/hello_world/nsim.props

@@ -0,0 +1,68 @@
+	nsim_isa_family=av2em
+	nsim_isa_core=3
+	arcver=0x3
+	nsim_isa_rgf_num_banks=2
+	nsim_isa_rgf_banked_regs=32
+	nsim_isa_rgf_num_regs=32
+	nsim_isa_rgf_num_wr_ports=2
+	nsim_isa_big_endian=0
+	nsim_isa_lpc_size=32
+	nsim_isa_pc_size=32
+	nsim_isa_addr_size=32
+	nsim_isa_code_density_option=2
+	nsim_isa_div_rem_option=1
+	nsim_isa_turbo_boost=1
+	nsim_isa_swap_option=1
+	nsim_isa_bitscan_option=1
+	nsim_isa_mpy_option=8
+	nsim_isa_shift_option=3
+	mpu_regions=16
+	mpu_version=2
+	nsim_isa_dsp_option=2
+	nsim_isa_dsp_complex_option=1
+	nsim_isa_dsp_divsqrt_option=1
+	nsim_isa_dsp_itu_option=1
+	nsim_isa_dsp_itu_option=1
+	nsim_isa_dsp_accshift_option=2
+	nsim_isa_agu_size=large
+	nsim_isa_agu_wb_depth=4
+	nsim_isa_agu_accord=1
+	nsim_isa_xy=1
+	nsim_isa_xy_config=dccm_y
+	nsim_isa_xy_size=8K
+	nsim_isa_xy_interleave=1
+	nsim_isa_xy_y_base=0xe0000000
+	nsim_isa_fpus_div_option=1
+	nsim_isa_fpu_mac_option=1
+	nsim_isa_fpuda_option=1
+	nsim_isa_fpu_fast_mpy_option=0
+	nsim_isa_fpu_fast_div_option=0
+	nsim_isa_bitstream_option=1
+	nsim_isa_enable_timer_0=1
+	nsim_isa_timer_0_int_level=1
+	nsim_isa_enable_timer_1=1
+	nsim_isa_timer_1_int_level=0
+	nsim_isa_num_actionpoints=2
+	nsim_isa_stack_checking=1
+	nsim_isa_has_dmp_peripheral=1
+	nsim_isa_smart_stack_entries=8
+	nsim_isa_number_of_interrupts=20
+	nsim_isa_number_of_levels=4
+	nsim_isa_number_of_external_interrupts=16
+	nsim_isa_fast_irq=1
+	nsim_isa_intvbase_preset=0x0
+	dcache=16384,32,2,a
+	nsim_isa_dc_feature_level=2
+	icache=16384,32,2,a
+	nsim_isa_ic_feature_level=2
+	dccm_size=0x80000
+	dccm_base=0x80000000
+	nsim_isa_dccm_interleave=1
+	iccm0_size=0x80000
+	iccm0_base=0x00000000
+	nsim_isa_pct_counters=8
+	nsim_isa_dmac_option=1
+	nsim_isa_dmac_channels=2
+	nsim_isa_dmac_registers=0
+	nsim_isa_dmac_fifo_depth=2
+	nsim_isa_dmac_int_config=single_internal

examples/hello_world/hello_world.c

@@ -65,6 +65,7 @@ void task3(void *arg)
 
 void application_entry(void *arg)
 {
+    printf("***I am task\r\n");
     osThreadCreate(osThread(task1), NULL); // Create task1
     osThreadCreate(osThread(task2), NULL); // Create task2
 }

platform/vendor_bsp/embarc_bsp/arc/startup/arc_startup.s

@@ -49,7 +49,7 @@
 .weak	_f_sdata		/* start of small data, defined in link script */
 .weak	init_hardware_hook	/* app hardware init hook */
 
-.extern	main
+.extern	board_main
 .extern exc_entry_table
 
 /* initial vector table */
@@ -188,7 +188,7 @@ _s3_clear_bss_loop:
 /* STAGE 3: go to next level initialization */
 _arc_reset_call_main:
 
-	jl	main	/* board-level main */
+	jl	board_main	/* board-level main */
 	b	_exit_loop
 
 	.global _exit_loop

platform/vendor_bsp/embarc_bsp/board/board.c

@@ -84,6 +84,81 @@ static volatile uint32_t gl_ms_cnt = 0;
 
 #define HZ_COUNT_CONV(precision, base)  ((precision) / (base))
 
+/**
+ * @brief Board bare-metal timer interrupt.
+ *  Interrupt frequency is based on the defined @ref BOARD_SYS_TIMER_HZ
+ */
+static void board_timer_isr(void *ptr)
+{
+	timer_int_clear(BOARD_SYS_TIMER_ID);
+
+	board_timer_update(BOARD_SYS_TIMER_HZ);
+}
+
+/**
+ * @brief Initialise bare-metal board timer and interrupt
+ * @details
+ * This function is called in @ref board_init, and
+ * it initializes the 1-MS timer interrupt for bare-metal mode
+ */
+static void board_timer_init(void)
+{
+	if (timer_present(BOARD_SYS_TIMER_ID)) {
+		int_disable(BOARD_SYS_TIMER_INTNO);                                             /* disable first then enable */
+		int_handler_install(BOARD_SYS_TIMER_INTNO, board_timer_isr);
+		timer_start(BOARD_SYS_TIMER_ID, TIMER_CTRL_IE | TIMER_CTRL_NH, cyc_hz_count);   /* start 1ms timer interrupt */
+
+		int_enable(BOARD_SYS_TIMER_INTNO);
+	}
+}
+
+static void platform_print_banner(void)
+{
+	EMBARC_PRINTF("%s\r\n", embarc_banner);
+	EMBARC_PRINTF("embARC Build Time: %s, %s\r\n", __DATE__, __TIME__);
+#if defined(__GNU__)
+	EMBARC_PRINTF("Compiler Version: ARC GNU, %s\r\n", __VERSION__);
+#else
+	EMBARC_PRINTF("Compiler Version: Metaware, %s\r\n\r\n", __VERSION__);
+#endif
+}
+
+EMBARC_WEAK void platform_main(void)
+{
+#ifdef LIB_CONSOLE
+	xprintf_setup();
+#endif
+	platform_print_banner();
+	arc_goto_main(0, NULL);
+}
+
+EMBARC_WEAK void board_main(void)
+{
+#if defined(__MW__)
+/* Metaware toolchain C++ init */
+	arc_mwdt_init();
+#elif defined(__GNU__)
+/* ARC GNU toolchain C++ init */
+
+	arc_gnu_do_global_ctors_aux();
+	arc_gnu_do_init_array_aux();
+#endif
+	/* init core level interrupt & exception management */
+	exc_int_init();
+	/* init cache */
+	arc_cache_init();
+	/* necessary board level init */
+	board_init();
+	/* Initialise bare-metal board timer and interrupt */
+	board_timer_init();
+	/* platform (e.g RTOS, baremetal)level init */
+	platform_main();
+#if defined(__MW__)
+	arc_mwdt_fini();
+#elif defined(__GNU__)
+	arc_gnu_do_global_dtors_aux();
+#endif
+}
 
 /**
  * @brief Update timer counter and other MS period operation