minix/kernel/arch/i386/Makefile.inc
Ben Gras 2d72cbec41 SYSENTER/SYSCALL support
. add cpufeature detection of both
	. use it for both ipc and kernelcall traps, using a register
	  for call number
	. SYSENTER/SYSCALL does not save any context, therefore userland
	  has to save it
	. to accomodate multiple kernel entry/exit types, the entry
	  type is recorded in the process struct. hitherto all types
	  were interrupt (soft int, exception, hard int); now SYSENTER/SYSCALL
	  is new, with the difference that context is not fully restored
	  from proc struct when running the process again. this can't be
	  done as some information is missing.
	. complication: cases in which the kernel has to fully change
	  process context (i.e. sigreturn). in that case the exit type
	  is changed from SYSENTER/SYSEXIT to soft-int (i.e. iret) and
	  context is fully restored from the proc struct. this does mean
	  the PC and SP must change, as the sysenter/sysexit userland code
	  will otherwise try to restore its own context. this is true in the
	  sigreturn case.
	. override all usage by setting libc_ipc=1
2012-09-24 15:53:43 +02:00

80 lines
2.4 KiB
Makefile

# Makefile for arch-dependent kernel code
.include <bsd.own.mk>
HERE=${.CURDIR}/arch/${MACHINE_ARCH}
.PATH: ${HERE}
# objects we want unpaged from -lminlib, -lminc
MINLIB_OBJS_UNPAGED=_cpufeature.o _cpuid.o get_bp.o
MINC_OBJS_UNPAGED=strcat.o strlen.o memcpy.o strcpy.o strncmp.o memset.o \
memmove.o strcmp.o atoi.o ctype_.o _stdfile.o strtol.o _errno.o errno.o \
udivdi3.o umoddi3.o qdivrem.o
SYS_OBJS_UNPAGED=kprintf.o vprintf.o assert.o stacktrace.o
# some object files we give a symbol prefix (or namespace) of __k_unpaged_
# that must live in their own unique namespace.
#
.for UNPAGED_OBJ in head.o pre_init.o direct_tty_utils.o io_outb.o \
io_inb.o pg_utils.o klib.o utility.o arch_reset.o \
$(MINLIB_OBJS_UNPAGED) $(MINC_OBJS_UNPAGED) $(SYS_OBJS_UNPAGED)
unpaged_${UNPAGED_OBJ}: ${UNPAGED_OBJ}
objcopy --prefix-symbols=__k_unpaged_ ${UNPAGED_OBJ} unpaged_${UNPAGED_OBJ}
UNPAGED_OBJS += unpaged_${UNPAGED_OBJ}
ORIG_UNPAGED_OBJS += ${UNPAGED_OBJ}
.endfor
# we have to extract some object files from libminc.a and libminlib.a
$(MINLIB_OBJS_UNPAGED) $(MINC_OBJS_UNPAGED) $(SYS_OBJS_UNPAGED): $(LIBMINLIB) $(LIBMINC) $(LIBSYS)
ar x $(LIBMINLIB) $(MINLIB_OBJS_UNPAGED)
ar x $(LIBMINC) $(MINC_OBJS_UNPAGED)
ar x $(LIBSYS) $(SYS_OBJS_UNPAGED)
CLEANFILES+= $(ORIG_UNPAGED_OBJS)
SRCS+= mpx.S arch_clock.c arch_do_vmctl.c arch_system.c \
do_iopenable.c do_readbios.c do_sdevio.c exception.c i8259.c io_inb.S \
io_inl.S io_intr.S io_inw.S io_outb.S io_outl.S io_outw.S klib.S klib16.S memory.c \
oxpcie.c protect.c direct_tty_utils.c arch_reset.c \
pg_utils.c usermapped_glo_ipc.S usermapped_data_arch.c
OBJS.kernel+= ${UNPAGED_OBJS}
.if ${USE_ACPI} != "no"
SRCS+= acpi.c
CPPFLAGS+= -DUSE_ACPI
.endif
.if ${USE_APIC} != "no"
SRCS+= apic.c apic_asm.S
CPPFLAGS+= -DUSE_APIC
.endif
.if ${USE_DEBUGREG} != "no"
SRCS+= breakpoints.c debugreg.S
.endif
.if ${USE_WATCHDOG} != "no"
SRCS+= arch_watchdog.c
CPPFLAGS+= -DUSE_WATCHDOG
.endif
apic_asm.d klib.d mpx.d head.d: procoffsets.h
# It's OK to hardcode the arch as i386 here as this and procoffsets.cf
# are i386-specific.
TMP=procoffsets.h.tmp
INCLS=../include/arch/i386/include/
PROCOFFSETSCF=procoffsets.cf
procoffsets.h: $(PROCOFFSETSCF) kernel.h proc.h $(INCLS)/stackframe.h $(INCLS)/archtypes.h
${_MKTARGET_CREATE}
cat ${HERE}/$(PROCOFFSETSCF) | \
${TOOL_GENASSYM} -- ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} >$TMP && \
mv -f $TMP $@
.ifdef CONFIG_SMP
SRCS += arch_smp.c trampoline.S
.endif