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Get aarch64 hello world working

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$ m=aarch64-tiny
    $ make -j8 m=$m o/$m/tool/hello/hello.com o/third_party/qemu/qemu-aarch64
    $ o/third_party/qemu/qemu-aarch64 o/$m/tool/hello/hello.com
    hello world
    $ ls -hal o/$m/tool/hello/hello.com
    -rwxr-xr-x 1 jart jart 4.0K May  9 05:04 o/aarch64-tiny/tool/hello/hello.com
This commit is contained in:
Justine Tunney 2023-05-09 02:35:05 -07:00
parent e5e3cdf447
commit ae0ee59614
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
174 changed files with 1454 additions and 851 deletions
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20
build/definitions.mk
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@ -56,6 +56,7 @@ TMPDIR = o/tmp
AR = build/bootstrap/ar.com
CP = build/bootstrap/cp.com
RM = build/bootstrap/rm.com -f
GZIP = build/bootstrap/gzip.com
ECHO = build/bootstrap/echo.com
TOUCH = build/bootstrap/touch.com
PKG = build/bootstrap/package.com
@ -72,13 +73,20 @@ IMAGE_BASE_VIRTUAL ?= 0x400000
IGNORE := $(shell $(ECHO) -2 ♥cosmo)
IGNORE := $(shell $(MKDIR) o/tmp)
ifneq ($(findstring aarch64,$(MODE)),)
ARCH = aarch64
VM = o/third_party/qemu/qemu-aarch64
else
ARCH = x86_64
endif
ifneq ("$(wildcard o/third_party/gcc/bin/x86_64-pc-linux-gnu-*)","")
PREFIX = o/third_party/gcc/bin/x86_64-pc-linux-gnu-
else
IGNORE := $(shell build/bootstrap/unbundle.com)
PREFIX = o/third_party/gcc/bin/x86_64-linux-musl-
endif
ifeq ($(MODE), aarch64)
ifeq ($(ARCH), aarch64)
PREFIX = o/third_party/gcc/bin/aarch64-linux-musl-
endif
@ -107,7 +115,7 @@ else
TMPSAFE = $(TMPDIR)/
endif
ifneq ($(MODE), aarch64)
ifneq ($(ARCH), aarch64)
MNO_FENTRY = -mno-fentry
endif
@ -115,11 +123,14 @@ FTRACE = \
-pg
BACKTRACES = \
-fno-schedule-insns2 \
-fno-omit-frame-pointer \
-fno-optimize-sibling-calls \
-mno-omit-leaf-frame-pointer
ifneq ($(ARCH), aarch64)
BACKTRACES += -fno-schedule-insns2
endif
SANITIZER = \
-fsanitize=address
@ -159,7 +170,7 @@ DEFAULT_COPTS = \
-fstrict-overflow \
-fno-semantic-interposition
ifneq ($(MODE), aarch64)
ifneq ($(ARCH), aarch64)
DEFAULT_COPTS += \
-mno-red-zone \
-mno-tls-direct-seg-refs
@ -197,7 +208,6 @@ DEFAULT_ASFLAGS = \
DEFAULT_LDFLAGS = \
-static \
-nostdlib \
-melf_x86_64 \
--gc-sections \
--build-id=none \
--no-dynamic-linker \