spacing fixes: no tabs, 2-space indents (for rtm)

asm.h

@@ -5,6 +5,7 @@
 #define SEG_NULLASM                                             \
         .word 0, 0;                                             \
         .byte 0, 0, 0, 0
+
 #define SEG_ASM(type,base,lim)                                  \
         .word (((lim) >> 12) & 0xffff), ((base) & 0xffff);      \
         .byte (((base) >> 16) & 0xff), (0x90 | (type)),         \

bootasm.S

@@ -18,7 +18,8 @@
 ###################################################################################
         
 .globl start                      # Entry point   
-start:		.code16				# This runs in real mode
+start:
+.code16                           # This runs in real mode
   cli                             # Disable interrupts
   cld                             # String operations increment
 
@@ -39,12 +40,15 @@ start:		.code16				# This runs in real mode
 ####   Obviously this a bit of a drag for us, especially when trying to
 ####   address memory above 1MB.  This code undoes this.
         
-seta20.1:	inb	$0x64,%al		# Get status
+seta20.1:
+  inb     $0x64,%al               # Get status
   testb   $0x2,%al                # Busy?
   jnz     seta20.1                # Yes
   movb    $0xd1,%al               # Command: Write
   outb    %al,$0x64               #  output port
-seta20.2:	inb	$0x64,%al		# Get status
+
+seta20.2:
+  inb     $0x64,%al               # Get status
   testb   $0x2,%al                # Busy?
   jnz     seta20.2                # Yes
   movb    $0xdf,%al               # Enable
@@ -60,7 +64,8 @@ seta20.2:	inb	$0x64,%al		# Get status
 ####     This initial NOP-translation setup is required by the processor
 ####     to ensure that the transition to protected mode occurs smoothly.
         
-real_to_prot:	cli				# Mandatory since we dont set up an IDT
+real_to_prot:
+  cli                             # Mandatory since we dont set up an IDT
   lgdt    gdtdesc                 # load GDT -- mandatory in protected mode
   movl    %cr0, %eax              # turn on protected mode
   orl     $CR0_PE_ON, %eax        # 
@@ -83,7 +88,9 @@ protcseg:
 
   call cmain                      # finish the boot load from C.
                                   # cmain() should not return
-spin:		jmp spin			# ..but in case it does, spin
+spin:
+  jmp spin                        # ..but in case it does, spin
+
 
 .p2align 2                                # force 4 byte alignment
 gdt:

bootother.S

@@ -21,7 +21,8 @@
 .set CR0_PE_ON,0x1              # protected mode enable flag
 
 .globl start
-start:		.code16				# This runs in real mode
+start:
+  .code16                         # This runs in real mode
   cli                             # Disable interrupts
   cld                             # String operations increment
 

ide.c

@@ -23,6 +23,7 @@ struct ide_request {
   uint nsecs;
   uint read;
 };
+
 struct ide_request request[NREQUEST];
 int head, tail;
 struct spinlock ide_lock;

mkfs.c

@@ -81,7 +81,7 @@ main(int argc, char *argv[])
   usedblocks = ninodes / IPB + 3 + bitblocks;
   freeblock = usedblocks;
 
-  printf ("used %d (bit %d ninode %d) free %d total %d\n", usedblocks, 
+  printf("used %d (bit %d ninode %d) free %d total %d\n", usedblocks, 
          bitblocks, ninodes/IPB + 1, freeblock, nblocks+usedblocks);
 
   assert (nblocks + usedblocks == size);

setjmp.S

@@ -33,5 +33,3 @@ longjmp:
   movl $1, %eax   /* return value (appears to come from setjmp!) */
   ret
 
-
-	

trapasm.S

@@ -1,4 +1,4 @@
-	.text
+.text
 .globl trap
 .globl trapret1
 

ulib.c

@@ -37,7 +37,7 @@ strlen(char *s)
   return n;
 }
 
-void *
+void*
 memset(void *dst, int c, unsigned int n)
 {
   char *d = (char *) dst;
@@ -48,7 +48,7 @@ memset(void *dst, int c, unsigned int n)
   return dst;
 }
 
-char *
+char*
 strchr(const char *s, char c)
 {
   for (; *s; s++)
@@ -57,7 +57,7 @@ strchr(const char *s, char c)
   return 0;
 }
 
-char *
+char*
 gets(char *buf, int max)
 {
   int i = 0, cc;

vectors.pl

@@ -13,10 +13,10 @@ for(my $i = 0; $i < 256; $i++){
     print ".globl vector$i\n";
     print "vector$i:\n";
     if(($i < 8 || $i > 14) && $i != 17){
-        print "\tpushl \$0\n";
+        print "  pushl \$0\n";
     }
-    print "\tpushl \$$i\n";
+    print "  pushl \$$i\n";
-    print "\tjmp alltraps\n";
+    print "  jmp alltraps\n";
 }
 
 print "\n/* vector table */\n";
@@ -24,5 +24,5 @@ print ".data\n";
 print ".globl vectors\n";
 print "vectors:\n";
 for(my $i = 0; $i < 256; $i++){
-    print "\t.long vector$i\n";
+    print "  .long vector$i\n";
 }

x86.h

@@ -88,9 +88,9 @@ static __inline void
 cpuid(uint info, uint *eaxp, uint *ebxp, uint *ecxp, uint *edxp)
 {
   uint eax, ebx, ecx, edx;
-	asm volatile("cpuid" 
+  asm volatile("cpuid" :
-		: "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
+               "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) :
-		: "a" (info));
+               "a" (info));
   if (eaxp)
     *eaxp = eax;
   if (ebxp)
@@ -105,10 +105,10 @@ static __inline uint
 cmpxchg(uint oldval, uint newval, volatile uint* lock_addr)
 {
   uint result;
-  __asm__ __volatile__(
+  __asm__ __volatile__("lock; cmpxchgl %2, %0" :
-		       "lock; cmpxchgl %2, %0"
+                       "+m" (*lock_addr), "=a" (result) :
-		       :"+m" (*lock_addr), "=a" (result) : "r"(newval), "1"(oldval) : "cc"
+                       "r"(newval), "1"(oldval) :
-		       );
+                       "cc");
   return result;
 }