Shell commands musage, mmap, date

Makefile

@@ -99,7 +99,7 @@ KernSources =	kernel/cpu/cpuid.c                             \
 		kernel/init/info.c kernel/init/ssp.c                           \
 		kernel/io/rtc.c kernel/io/keyb.c                               \
 		kernel/io/spkr.c kernel/po/shtdwn.c                            \
-		kernel/ke/shell.c kernel/ke/shcmds.c
+		kernel/sh/shell.c kernel/sh/shcmds.c
 
 LibCObj=$(patsubst %.c,$(KOBJDIR)/%.o,$(LibCSources))
 

include/kernel/keyboard.h

@@ -38,6 +38,7 @@ void IoChangeCodePage(char *CodePage);
 //----------------------------------------------------------------------------//
 
 #define KEY_ESC 27
+#define KEY_BS 8
 #define KEY_BEL 7
 #define KEY_DC1 17
 #define KEY_DC2 18

kaleid/kernel/sh/shcmds.c

@@ -27,8 +27,11 @@
 Command_t cmdtable[] =
 {
     { "beep", CmdBeep, "Make a beep" },
+    { "date", CmdDate, "Print date" },
     { "exit", CmdQuit, "Initiate shutdown" },
     { "help", CmdHelp, "Show this message" },
+    { "mmap", CmdMemMap, "Show memory map" },
+    { "musage", CmdMemUsage, "Show memory statistics" },
     { "quit", CmdQuit, "Alias for 'exit'" },
     { NULL, NULL, NULL }
 };
@@ -58,10 +61,74 @@ error_t CmdHelp(int argc, char **argv, char *cmdline)
     if (argc == 1) {
         KernLog("List of all shell built-ins:\n");
         for (cmd = cmdtable; cmd->name != NULL; cmd++, count++) {
-            KernLog("\t%s\t%s\n", cmd->name, cmd->help);
+            KernLog("\t%s\t\t%s\n", cmd->name, cmd->help);
         }
-        KernLog("End of list; %u commands total\n\n", count);
+        KernLog("End of list; %u commands total\n", count);
     }
     
     return EOK;
 }
+
+error_t CmdDate(int argc, char **argv, char *cmdline)
+{
+    IoPrintRtcTime();
+    return EOK;
+}
+
+error_t CmdMemMap(int argc, char **argv, char *cmdline)
+{
+    MmPrintMemoryMap();
+    return EOK;
+}
+
+#define ADDR_TO_MB(x) ((x)>>20)
+#define ADDR_TO_KB(x) (((x)>>10)&(KB-1))
+#define ADDR_TO_B(x) ((x)&(KB-1))
+
+error_t CmdMemUsage(int argc, char **argv, char *cmdline)
+{
+    size_t start, end;
+    size_t diff, max;
+
+    ulong flags = KePauseIRQs();
+
+    start = (size_t)_heap_start;
+    end = (size_t)_heap_end;
+    max = _heap_max;
+    
+    KeRestoreIRQs(flags);
+    
+    diff = (size_t)end - (size_t)start;
+    
+    KernLog("Heap start:\t\t%p (%luMB + %luKB + %luB)\n",
+                start, ADDR_TO_MB(start),
+                ADDR_TO_KB(start),
+                ADDR_TO_B(start));
+
+    KernLog("Heap end:\t\t%p (%luMB + %luKB + %luB)\n",
+                end, ADDR_TO_MB(end),
+                ADDR_TO_KB(end),
+                ADDR_TO_B(end));
+
+    KernLog("Heap size:\t\t%p (%luMB + %luKB + %luB)\n",
+                diff, ADDR_TO_MB(diff),
+                ADDR_TO_KB(diff),
+                ADDR_TO_B(diff));
+
+    KernLog("Max heap size:\t%luMB + %luKB + %luB\n", 
+                ADDR_TO_MB(max),
+                ADDR_TO_KB(max),
+                ADDR_TO_B(max));
+
+    return EOK;
+}
+
+
+
+
+
+
+
+
+
+

kaleid/kernel/sh/shell.c

@@ -64,7 +64,7 @@ void KeStartShell(void)
     memzero(argv0, ARG_MAX);
     shargv = &argv0;
 
-    KernLog("\nshell> ");
+    KernLog("shell> ");
     BFlushBuf(BStdOut);
 
     while ((rc = BGetFromBuf(BStdIn, &ch)) == EOK || rc == EENDF) {
@@ -85,6 +85,13 @@ void KeStartShell(void)
     
         switch (ch) {
 
+        case KEY_BS:
+            *bufptr = 0;
+            if (bufptr > cmdbuf) {
+                bufptr--;
+            }
+            break;
+
         case KEY_BEL:
             if (rand() % 64 == 0) {
                 IoDoStarWars();

kaleid/kernel/sh/shell.h

@@ -24,6 +24,9 @@
 
 #include <extras/buf.h>
 #include <extras/argv.h>
+
+#include <kernel/mm.h>
+#include <kernel/heap.h>
 #include <kernel/time.h>
 #include <kernel/speaker.h>
 #include <kernel/iomisc.h>
@@ -53,6 +56,9 @@ struct Command_t
 DEC_CMD(Beep);
 DEC_CMD(Quit);
 DEC_CMD(Help);
+DEC_CMD(Date);
+DEC_CMD(MemMap);
+DEC_CMD(MemUsage);
 
 extern Command_t cmdtable[];