source: mainline/kernel/arch/arm64/Makefile.inc@ 84176f3

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 84176f3 was 84176f3, checked in by Jakub Jermář <jakub@…>, 7 years ago

arm64: Add support for the architecture

This changeset adds basic support to run HelenOS on AArch64, targeting
the QEMU virt platform.

Boot:

  • Boot relies on the EDK II firmware, GRUB2 for EFI and the HelenOS bootloader (UEFI application). EDK II loads GRUB2 from a CD, GRUB2 loads the HelenOS bootloader (via UEFI) which loads OS components.
  • UEFI applications use the PE/COFF format and must be relocatable. The first problem is solved by manually having the PE/COFF headers and tables written in assembler. The relocatable requirement is addressed by compiling the code with -fpic and having the bootloader relocate itself at its startup.

Kernel:

  • Kernel code for AArch64 consists mostly of stubbing out various architecture-specific hooks: virtual memory management, interrupt and exception handling, context switching (including FPU lazy switching), support for virtual timer, atomic sequences and barriers, cache and TLB maintenance, thread and process initialization.
  • The patch adds a kernel driver for GICv2 (interrupt controller).
  • The PL011 kernel driver is extended to allow userspace to take ownership of the console.
  • The current code is not able to dynamically obtain information about available devices on the underlying machine. The port instead implements a machine-func interface similar to the one implemented by arm32. It defines a machine for the QEMU AArch64 virt platform. The configuration (device addresses and IRQ numbers) is then baked into the machine definition.

User space:

  • Uspace code for AArch64 similarly mostly implements architecture-specific hooks: context saving/restoring, syscall support, TLS support.

The patchset allows to boot the system but user interaction with the OS
is not yet possible.

  • Property mode set to 100644
File size: 2.5 KB
Line 
1#
2# Copyright (c) 2015 Petr Pavlu
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8#
9# - Redistributions of source code must retain the above copyright
10# notice, this list of conditions and the following disclaimer.
11# - Redistributions in binary form must reproduce the above copyright
12# notice, this list of conditions and the following disclaimer in the
13# documentation and/or other materials provided with the distribution.
14# - The name of the author may not be used to endorse or promote products
15# derived from this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27#
28
29BFD_NAME = elf64-littleaarch64
30BFD_ARCH = aarch64
31BFD = binary
32
33COMMON_CFLAGS += -fno-omit-frame-pointer -march=armv8-a+nofp+nosimd \
34 -mgeneral-regs-only
35
36BITS = 64
37ENDIANESS = LE
38
39ARCH_SOURCES = \
40 arch/$(KARCH)/src/arm64.c \
41 arch/$(KARCH)/src/asm.S \
42 arch/$(KARCH)/src/context.S \
43 arch/$(KARCH)/src/cpu/cpu.c \
44 arch/$(KARCH)/src/debug/stacktrace.c \
45 arch/$(KARCH)/src/debug/stacktrace_asm.S \
46 arch/$(KARCH)/src/exception.c \
47 arch/$(KARCH)/src/fpu.S \
48 arch/$(KARCH)/src/fpu_context.c \
49 arch/$(KARCH)/src/interrupt.c \
50 arch/$(KARCH)/src/machine_func.c \
51 arch/$(KARCH)/src/mm/as.c \
52 arch/$(KARCH)/src/mm/frame.c \
53 arch/$(KARCH)/src/mm/km.c \
54 arch/$(KARCH)/src/mm/page.c \
55 arch/$(KARCH)/src/mm/tlb.c \
56 arch/$(KARCH)/src/smc.c \
57 arch/$(KARCH)/src/smp/ipi.c \
58 arch/$(KARCH)/src/smp/smp.c \
59 arch/$(KARCH)/src/start.S
60
61ifeq ($(MACHINE),virt)
62 ARCH_SOURCES += arch/$(KARCH)/src/mach/virt/virt.c
63endif
64
65ARCH_AUTOCHECK_HEADERS = \
66 arch/$(KARCH)/include/arch/context_struct.h \
67 arch/$(KARCH)/include/arch/fpu_context_struct.h \
68 arch/$(KARCH)/include/arch/istate_struct.h
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