Mercurial > lcfOS
view cos/kernel/shell.c @ 180:25a0753da4cf
Re-organized files
author | Windel Bouwman |
---|---|
date | Thu, 09 May 2013 17:35:19 +0200 |
parents | 24ce177e01e8 |
children |
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#include "kernel.h" /* Interactive shell, should be eventually a user space program */ static void testMalloc() { char *a, *b; printf("Testing malloc\n"); a = kmalloc(100); printf("Got a at %x\n", a); a[0] = 'A'; b = kmalloc(22); printf("Got b at %x\n", b); b[0] = 'B'; kfree(a); } void memory_status(void); void shell() { printf("Welcome!\n"); while (1) { char buffer[70]; printf(">"); getline(buffer, 70); // TODO: interpret this line with python :) printf("\n"); if (buffer[0] == 'x') { printf("System time in ms: %d\n", getTimeMS()); memory_status(); } if (buffer[0] == 't') { testMalloc(); } if ( strncmp(buffer, "help", 4)) { printf("Help\n Try one of these commands:\n"); printf(" x: print system time in ms\n"); printf(" r: reboot\n"); printf(" t: test\n"); printf(" b: break\n"); } if (strncmp(buffer, "r", 1)) { reboot(); } if (strncmp(buffer, "b", 1)) { magicBochsBreak(); } if (strncmp(buffer, "pf", 2)) { /* Test general protection exception */ uint64_t *x; x = (uint64_t*)0x4000000; // Address that is not mapped *x = 0x2; // trigger paging exception } } }