Add MKMCONTEXT option

kernel/Makefile

@@ -59,6 +59,12 @@ SRCS+= apic.c apic_asm.S
 CPPFLAGS+= -DUSE_APIC
 .endif
 
+.if ${USE_MCONTEXT} != "no"
+SRCS+= do_mcontext.c
+CPPFLAGS+= -DUSE_MCONTEXT
+.endif
+
+
 # These come last, so the profiling buffer is at the end of the data segment
 SRCS+= profile.c do_sprofile.c
 

kernel/config.h

@@ -43,7 +43,6 @@
 #define USE_MEMSET  	   1	/* write char to a given memory area */
 #define USE_RUNCTL         1	/* control stop flags of a process */
 #define USE_UPDATE         1	/* update a process into another */
-#define USE_MCONTEXT       1    /* enable getting and setting of mach context*/
 #define USE_STATECTL       1    /* let a process control its state */
 
 /* Length of program names stored in the process table. This is only used

kernel/system/Makefile.inc

@@ -37,7 +37,6 @@ SRCS+= 	\
 	do_cprofile.c \
 	do_profbuf.c \
 	do_vmctl.c \
-	do_mcontext.c \
 	do_schedule.c \
 	do_schedctl.c \
 	do_statectl.c