给lwp传递参数

components/lwp/arch/arm/cortex-m3/lwp_rvds.S

@@ -34,33 +34,33 @@
     IMPORT lwp_set_kernel_sp
 
 ;/*
-; * void lwp_user_entry(u32 R0_text_addr, u32 R1_data_addr);
+; * void lwp_user_entry(args, text, data);
 ; */
 lwp_user_entry    PROC
     EXPORT  lwp_user_entry
 
-    PUSH    {R0-R1}             ; push text&data addr.
+    PUSH    {R0-R3}             ; push text&data addr.
 
     MOV     R0, SP              ; v1 = SP
     BL      lwp_set_kernel_sp   ; lwp_set_kernel_sp(v1)
 
-    POP     {R0-R1}             ; pop app address to R1.
-
     ; set CPU to user-thread mode.
     MRS     R2, CONTROL
     ORR     R2, R2, #0x03       ; use PSP, user-thread mode.
     MSR     CONTROL, R2
 
+    POP     {R0-R3}             ; pop app address to R1.
     ; set data address.
-    MOV     R9, R1
+    MOV     R9, R2
 
     ; run app, only Thumb-mode.
-    ORR     R0, R0, #0x01
+    ORR     R1, R1, #0x01
-    BX      R0
+    BX      R1
 
     ; never reach here!
     ENDP
 
+
 ;/*
 ; * void SVC_Handler(void);
 ; */

components/lwp/arch/arm/cortex-m4/lwp_rvds.S

@@ -34,33 +34,33 @@
     IMPORT lwp_set_kernel_sp
 
 ;/*
-; * void lwp_user_entry(u32 R0_text_addr, u32 R1_data_addr);
+; * void lwp_user_entry(args, text, data);
 ; */
 lwp_user_entry    PROC
     EXPORT  lwp_user_entry
 
-    PUSH    {R0-R1}             ; push text&data addr.
+    PUSH    {R0-R3}             ; push text&data addr.
 
     MOV     R0, SP              ; v1 = SP
     BL      lwp_set_kernel_sp   ; lwp_set_kernel_sp(v1)
 
-    POP     {R0-R1}             ; pop app address to R1.
-
     ; set CPU to user-thread mode.
     MRS     R2, CONTROL
     ORR     R2, R2, #0x03       ; use PSP, user-thread mode.
     MSR     CONTROL, R2
 
+    POP     {R0-R3}             ; pop app address to R1.
     ; set data address.
-    MOV     R9, R1
+    MOV     R9, R2
 
     ; run app, only Thumb-mode.
-    ORR     R0, R0, #0x01
+    ORR     R1, R1, #0x01
-    BX      R0
+    BX      R1
 
     ; never reach here!
     ENDP
 
+
 ;/*
 ; * void SVC_Handler(void);
 ; */

components/lwp/arch/arm/cortex-m7/lwp_rvds.S

@@ -34,29 +34,28 @@
     IMPORT lwp_set_kernel_sp
 
 ;/*
-; * void lwp_user_entry(u32 R0_text_addr, u32 R1_data_addr);
+; * void lwp_user_entry(args, text, data);
 ; */
 lwp_user_entry    PROC
     EXPORT  lwp_user_entry
 
-    PUSH    {R0-R1}             ; push text&data addr.
+    PUSH    {R0-R3}             ; push text&data addr.
 
     MOV     R0, SP              ; v1 = SP
     BL      lwp_set_kernel_sp   ; lwp_set_kernel_sp(v1)
 
-    POP     {R0-R1}             ; pop app address to R1.
-
     ; set CPU to user-thread mode.
     MRS     R2, CONTROL
     ORR     R2, R2, #0x03       ; use PSP, user-thread mode.
     MSR     CONTROL, R2
 
+    POP     {R0-R3}             ; pop app address to R1.
     ; set data address.
-    MOV     R9, R1
+    MOV     R9, R2
 
     ; run app, only Thumb-mode.
-    ORR     R0, R0, #0x01
+    ORR     R1, R1, #0x01
-    BX      R0
+    BX      R1
 
     ; never reach here!
     ENDP

components/lwp/lwp.c

@@ -25,10 +25,6 @@
 #include <rthw.h>
 #include <dfs_posix.h>
 
-#ifdef RT_USING_FINSH
-    #include <finsh.h>
-#endif
-
 #ifndef RT_USING_DFS
     #error  "lwp need file system(RT_USING_DFS)"
 #endif
@@ -42,7 +38,7 @@
 #include <rtdbg.h>
 
 extern rt_thread_t rt_current_thread;
-extern void lwp_user_entry(const void *text, void *data);
+extern void lwp_user_entry(void *args, const void *text, void *data);
 
 /**
  * RT-Thread light-weight process
@@ -62,6 +58,43 @@ uint32_t *lwp_get_kernel_sp(void)
     return user_data->kernel_sp;
 }
 
+static int lwp_argscopy(struct rt_lwp *lwp, int argc, char **argv)
+{
+    int size = sizeof(int)*3; /* store argc, argv, NULL */
+    int *args;
+    char *str;
+    char **new_argv;
+    int i;
+    int len;
+
+    for (i = 0; i < argc; i ++)
+    {
+        size += (rt_strlen(argv[i]) + 1);
+    }
+    size  += (sizeof(int) * argc);
+
+    args = (int*)rt_malloc(size);
+    if (args == RT_NULL)
+        return -1;
+
+    str = (char*)((int)args + (argc + 3) * sizeof(int));
+    new_argv = (char**)&args[2];
+    args[0] = argc;
+    args[1] = (int)new_argv;
+
+    for (i = 0; i < argc; i ++)
+    {
+        len = rt_strlen(argv[i]) + 1;
+        new_argv[i] = str;
+        rt_memcpy(str, argv[i], len);
+        str += len;
+    }
+    new_argv[i] = 0;
+    lwp->args = args;
+
+    return 0;
+}
+
 static int lwp_load(const char *filename, struct rt_lwp *lwp, uint8_t *load_addr, size_t addr_size)
 {
     int fd;
@@ -76,8 +109,6 @@ static int lwp_load(const char *filename, struct rt_lwp *lwp, uint8_t *load_addr
     /* check lwp control block */
     RT_ASSERT(lwp != RT_NULL);
 
-    memset(lwp, 0x00, sizeof(struct rt_lwp));
-
     if (load_addr != RT_NULL)
     {
         lwp->lwp_type = LWP_TYPE_FIX_ADDR;
@@ -279,6 +310,15 @@ static void lwp_cleanup(struct rt_thread *tid)
     dbg_log(DBG_LOG, "lwp free memory pages\n");
     rt_lwp_mem_deinit(lwp);
 
+    /* cleanup fd table */
+    while (lwp->fdt.maxfd > 0)
+    {
+        lwp->fdt.maxfd --;
+        close(lwp->fdt.maxfd);
+    }
+    rt_free(lwp->fdt.fds);
+    rt_free(lwp->args);
+
     dbg_log(DBG_LOG, "lwp free: %p\n", lwp);
     rt_free(lwp);
 
@@ -299,7 +339,7 @@ static void lwp_thread(void *parameter)
     tid->user_data = (rt_uint32_t)lwp;
     tid->cleanup = lwp_cleanup;
 
-    lwp_user_entry(lwp->text_entry, lwp->data);
+    lwp_user_entry(lwp->args, lwp->text_entry, lwp->data);
 }
 
 struct rt_lwp *rt_lwp_self(void)
@@ -307,7 +347,7 @@ struct rt_lwp *rt_lwp_self(void)
     return (struct rt_lwp *)rt_thread_self()->user_data;
 }
 
-int exec(char *filename)
+int exec(char *filename, int argc, char **argv)
 {
     struct rt_lwp *lwp;
     int result;
@@ -324,6 +364,12 @@ int exec(char *filename)
     dbg_log(DBG_INFO, "lwp malloc : %p, size: %d!\n", lwp, sizeof(struct rt_lwp));
 
     rt_memset(lwp, 0, sizeof(*lwp));
+    if (lwp_argscopy(lwp, argc, argv) != 0)
+    {
+        rt_free(lwp);
+        return -ENOMEM;
+    }
+
     result = lwp_load(filename, lwp, RT_NULL, 0);
     if (result == RT_EOK)
     {
@@ -348,6 +394,7 @@ int exec(char *filename)
         }
     }
 
+    rt_free(lwp->args);
     rt_free(lwp);
 
     return -RT_ERROR;

components/lwp/lwp.h

@@ -52,6 +52,7 @@ struct rt_lwp
 
     uint32_t *kernel_sp;                                /**< kernel stack point */
     struct dfs_fdtable fdt;
+    void *args;
 };
 
 struct lwp_header