Disable KVM, log everything to serial, fix Makefile

Disable KVM, as GDB breakpoints stopped working.
Makefile: two unquoted paths caused issues, now that my ~/Programming/exscapeOS is a symlink to a path with a space in its name.
Bochs: use ./bootable.iso instead of an absolute path
Serial: Add serial_send_byte(c) to putchar(), to allow for easy scrolling in panic messages etc.

Makefile

@@ -32,7 +32,8 @@ ALLFILES := $(SRCFILES) $(HDRFILES) $(AUXFILES) $(ASMFILES)
 QEMU := qemu-system-i386
 
 # Make sure this is blank if the host OS is not Linux / KVM is not supported
-KVM := -machine accel=kvm
+#KVM := -machine accel=kvm
+KVM :=
 
 all: $(OBJFILES)
 	@set -e; if [ ! -d "initrd/bin" ]; then \
@@ -57,7 +58,7 @@ clean:
 	-$(RM) $(wildcard $(OBJFILES) $(DEPFILES) kernel.bin bootable.iso misc/initrd.img)
 	@for prog in $(USERSPACEPROG); do \
 		make -C $$prog clean; \
-		rm -f initrd/bin/`basename $$prog` ; \
+		rm -f initrd/bin/`basename "$$prog"` ; \
 	done
 	@rm -f initrd/bin/sh
 

exscapeos.bochs

@@ -11,7 +11,8 @@ floppy_bootsig_check: disabled=0
 # no floppyb
 ata0: enabled=1, ioaddr1=0x1f0, ioaddr2=0x3f0, irq=14
 ata1: enabled=1, ioaddr1=0x170, ioaddr2=0x370, irq=15
-ata1-master: type=cdrom, path="/home/serenity/exscapeOS/bootable.iso", status=inserted, biosdetect=auto, model="Generic 1234"
+#ata1-master: type=cdrom, path="/home/serenity/Programming/exscapeOS/bootable.iso", status=inserted, biosdetect=auto, model="Generic 1234"
+ata1-master: type=cdrom, path="./bootable.iso", status=inserted, biosdetect=auto, model="Generic 1234"
 ata2: enabled=0
 ata3: enabled=0
 pci: enabled=0

src/kernel/console.c

@@ -8,6 +8,7 @@
 #include <kernel/list.h>
 #include <kernel/timer.h>
 #include <kernel/time.h>
+#include <kernel/serial.h>
 
 /* A character representing empty space on the screen */
 static const uint16 blank = (0x7 << 8 /* grey on black */) | 0x20 /* space */;
@@ -465,6 +466,8 @@ int putchar(int c) {
 	cursor = &con->cursor;
 	assert(cursor != NULL);
 
+	serial_send_byte(c);
+
 	if (c == '\n') {
 		// c == newline
 		cursor->x = 0;

src/userspace/.user_Makefile

@@ -12,7 +12,7 @@ SRCFILES := $(shell find . -type f -name '*.c')
 OBJFILES := $(patsubst %.c,%.o,$(SRCFILES))
 DEPFILES := $(patsubst %.c,%.d,$(SRCFILES))
 
-OUTNAME := $(shell basename `pwd`)
+OUTNAME := $(shell basename "`pwd`")
 
 all: $(OBJFILES)
 	@$(LD) $(LDFLAGS) -o $(OUTNAME) $(OBJFILES)