GCC build fixes/updates

-Set stack sizes for boot image processes
-Increase RS stack size
-Reduce ramdisk size
-HARDWARE task should use kernel stack
-Minor asm tweaks for leading underscores

kernel/arch/i386/klib.S

@@ -29,7 +29,7 @@
 .globl	_phys_copy_fault	/* phys_copy pagefault */
 .globl	_phys_copy_fault_in_kernel /* phys_copy pagefault in kernel */
 .globl	_phys_memset	/* write pattern anywhere in memory */
-.globl	mem_rdw	/* copy one word from [segment:offset] */
+.globl	_mem_rdw	/* copy one word from [segment:offset] */
 .globl	_reset	/* reset the system */
 .globl	_halt_cpu/* halts the current cpu when idle */
 .globl	_read_cpu_flags	/* read the cpu flags */
@@ -575,7 +575,7 @@ fill_done:
  */
 
 .balign	16
-mem_rdw:
+_mem_rdw:
 	mov	%ds, %cx
 	mov	4(%esp), %ds
 	mov	4+4(%esp), %eax	/* offset */

kernel/arch/i386/mpx.S

@@ -117,7 +117,7 @@ begbss:
 /*===========================================================================*/
 /*				MINIX					     */
 /*===========================================================================*/
-.global MINIX
+.globl MINIX
 MINIX:
 /* this is the entry point for the MINIX kernel */
 	jmp	over_flags	/* skip over the next few bytes */
@@ -731,6 +731,6 @@ _reload_cr3:
  * the kernel stack
  */
 .globl _k_boot_stktop
-_k_boot_stack:
+k_boot_stack:
 .space	4096		/* kernel stack */ /* FIXME use macro here */
 _k_boot_stktop:		/* top of kernel stack */

kernel/table.c

@@ -69,7 +69,7 @@ PUBLIC struct boot_image image[] = {
 {IDLE,             0,  0,      0, IDL_S, "idle"  },
 {CLOCK,            0,  0,      0, IDL_S, "clock" },
 {SYSTEM,           0,  0,      0, IDL_S, "system"},
-{HARDWARE,         0,  0,      0, IDL_S, "kernel"},
+{HARDWARE,         0,  0,      0, HRD_S, "kernel"},
 
 {DS_PROC_NR,   BVM_F, 50,      4, 0,     "ds"    },
 {RS_PROC_NR,       0, 50,      4, 0,     "rs"    },