feat: add support for aarch64 timer/interrupts, port MontaukOS userspace

programs/src/printd/Makefile

@@ -3,9 +3,9 @@
 MAKEFLAGS += -rR
 .SUFFIXES:
 
-TOOLCHAIN_PREFIX := $(shell cd ../../.. && pwd)/toolchain/local/bin/x86_64-montauk-
+include ../../mk/arch.mk
 ifeq ($(wildcard $(TOOLCHAIN_PREFIX)gcc),)
-    CXX = $(error x86_64-montauk toolchain not found. Run ./toolchain/build-montauk-toolchain.sh first)
+    CXX = $(error $(TOOLCHAIN_MISSING))
 else
     CXX := $(TOOLCHAIN_PREFIX)g++
 endif
@@ -16,9 +16,8 @@ TLS_LIB  := ../../lib/tls
 BEARSSL  := ../../lib/bearssl
 JPEGWRITE := ../../lib/libjpegwrite
 LINK_LD  := ../../link.ld
-BINDIR   := ../../bin
-OBJDIR   := obj
-
+BINDIR   := ../../bin$(ARCH_SUFFIX)
+OBJDIR   := obj$(ARCH_SUFFIX)
 CXXFLAGS := \
     -std=gnu++20 \
     -g -O2 -pipe \
@@ -32,8 +31,7 @@ CXXFLAGS := \
     -fno-exceptions \
     -ffunction-sections \
 	-fdata-sections \
-	-msse \
-	-msse2 \
+	$(ARCH_FP_FLAGS) \
     -I $(PROG_INC) \
     -isystem $(PROG_INC)/libc \
     -I $(BEARSSL)/inc
@@ -45,7 +43,7 @@ LDFLAGS := \
 
 SRCS := main.cpp test_page_jpeg.cpp font_data.cpp stb_truetype_impl.cpp
 OBJS := $(addprefix $(OBJDIR)/,$(SRCS:.cpp=.o))
-LIBS := $(TLS_LIB)/libtls.a $(BEARSSL)/libbearssl.a $(JPEGWRITE)/libjpegwrite.a $(LIBC_LIB)/liblibc.a
+LIBS := $(TLS_LIB)/$(ARCH_OUT)libtls.a $(BEARSSL)/build$(ARCH_SUFFIX)/libbearssl.a $(JPEGWRITE)/$(ARCH_OUT)libjpegwrite.a $(LIBC_LIB)/$(ARCH_OUT)liblibc.a
 TARGET := $(BINDIR)/os/printd.elf
 DEPS := $(OBJS:.o=.d)