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freebsd-dev/sys/conf/Makefile.ia64

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This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
# Makefile.ia64 -- with config changes.
# Copyright 1990 W. Jolitz
# from: src/sys/conf/Makefile.alpha,v 1.76
# $FreeBSD$
#
# Makefile for FreeBSD
#
# This makefile is constructed from a machine description:
# config machineid
# Most changes should be made in the machine description
Sync-up so that buils actually work again.
2000-12-10 04:31:16 +00:00
# /sys/ia64/conf/``machineid''
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
# after which you should do
# config machineid
Finish the asbestos suited move of $mach/conf/*.$mach to conf/*.$mach. Fix some more typos.
2001-10-26 10:33:45 +00:00
# Generic makefile changes should be made in
# /sys/conf/Makefile.ia64
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
# after which config should be rerun for all machines.
#
Remove CWARNFLAGS and add GCC3. We handle GCC3.x specific flags centrally now that we have GCC3 in the tree. The GCC3 variable is a helper during the switch.
2002-05-19 03:41:48 +00:00
GCC3= you bet
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
# Which version of config(8) is required.
Bump the config version to force people to upgrade their config(8) so the fix for emitting multiple instances of .o files will prevent link errors on LINT.
2003-04-15 21:29:11 +00:00
%VERSREQ= 500012
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
STD8X16FONT?= iso
.if !defined(S)
.if exists(./@/.)
S= ./@
.else
Move kernel compile directory from sys/compile/FOO to sys/compile/${MACHINE}/FOO. Reviewed by: arch, obrien, peter and the USENIX terminal room secret kernel cabal
2001-06-30 06:29:47 +00:00
S= ../../..
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
.endif
.endif
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
.include "$S/conf/kern.pre.mk"
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
Revamp of the syscall path, exception and context handling. The prime objectives are: o Implement a syscall path based on the epc inststruction (see sys/ia64/ia64/syscall.s). o Revisit the places were we need to save and restore registers and define those contexts in terms of the register sets (see sys/ia64/include/_regset.h). Secundairy objectives: o Remove the requirement to use contigmalloc for kernel stacks. o Better handling of the high FP registers for SMP systems. o Switch to the new cpu_switch() and cpu_throw() semantics. o Add a good unwinder to reconstruct contexts for the rare cases we need to (see sys/contrib/ia64/libuwx) Many files are affected by this change. Functionally it boils down to: o The EPC syscall doesn't preserve registers it does not need to preserve and places the arguments differently on the stack. This affects libc and truss. o The address of the kernel page directory (kptdir) had to be unstaticized for use by the nested TLB fault handler. The name has been changed to ia64_kptdir to avoid conflicts. The renaming affects libkvm. o The trapframe only contains the special registers and the scratch registers. For syscalls using the EPC syscall path no scratch registers are saved. This affects all places where the trapframe is accessed. Most notably the unaligned access handler, the signal delivery code and the debugger. o Context switching only partly saves the special registers and the preserved registers. This affects cpu_switch() and triggered the move to the new semantics, which additionally affects cpu_throw(). o The high FP registers are either in the PCB or on some CPU. context switching for them is done lazily. This affects trap(). o The mcontext has room for all registers, but not all of them have to be defined in all cases. This mostly affects signal delivery code now. The *context syscalls are as of yet still unimplemented. Many details went into the removal of the requirement to use contigmalloc for kernel stacks. The details are mostly CPU specific and limited to exception_save() and exception_restore(). The few places where we create, destroy or switch stacks were mostly simplified by not having to construct physical addresses and additionally saving the virtual addresses for later use. Besides more efficient context saving and restoring, which of course yields a noticable speedup, this also fixes the dreaded SMP bootup problem as a side-effect. The details of which are still not fully understood. This change includes all the necessary backward compatibility code to have it handle older userland binaries that use the break instruction for syscalls. Support for break-based syscalls has been pessimized in favor of a clean implementation. Due to the overall better performance of the kernel, this will still be notived as an improvement if it's noticed at all. Approved by: re@ (jhb)
2003-05-16 21:26:42 +00:00
INCLUDES+= -I$S/contrib/ia64/libuwx/src
Build the kernel with -mconstant-gp. This means that function calls, with the exception of indirect function calls, are assumed to be intra load module and thus that GP will be the same. This avoids saving, setting and restoring GP for each function call and reduces the kernel with ~320KB. There's obviously a performance benefit as well. Note that since we generally don't know if calls will be intra or inter load module when we're compiling kernel modules, -mconstant-gp cannot be used for modules.
2002-10-13 07:07:51 +00:00
CFLAGS+= -mconstant-gp
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
ASM_CFLAGS= -x assembler-with-cpp -Wa,-x -DLOCORE ${CFLAGS}
%BEFORE_DEPEND
%OBJS
Make the xxxFILES= list generation generic. This makes it easier to add things like MFILES= or CONFFILES= without having to modify config code.
2000-11-25 03:25:34 +00:00
%FILES.c
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
Make the xxxFILES= list generation generic. This makes it easier to add things like MFILES= or CONFFILES= without having to modify config code.
2000-11-25 03:25:34 +00:00
%FILES.s
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
Make the xxxFILES= list generation generic. This makes it easier to add things like MFILES= or CONFFILES= without having to modify config code.
2000-11-25 03:25:34 +00:00
%FILES.m
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
%CLEAN
%RULES
Move kern.post.mk to last line, now that it appears safe
2001-11-11 20:33:02 +00:00
.include "$S/conf/kern.post.mk"
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