test: General makefile updates

test/.gitignore

@@ -1,3 +1,4 @@
 test.o
 test.elf
 flanterm
+limine.h

test/GNUmakefile

@@ -12,7 +12,20 @@ override LD := $(LD_FOR_TARGET)
 override QEMU := qemu-system-x86_64
 QEMUFLAGS = -m 1G -enable-kvm -cpu host
 
-override INTERNALLDFLAGS :=         \
+ifneq ($(findstring x86_64,$(CC_FOR_TARGET)),)
+override LDFLAGS += \
+    -m elf_x86_64
+endif
+ifneq ($(findstring aarch64,$(CC_FOR_TARGET)),)
+override LDFLAGS += \
+    -m aarch64elf
+endif
+ifneq ($(findstring riscv64,$(CC_FOR_TARGET)),)
+override LDFLAGS += \
+    -m elf64lriscv
+endif
+
+override LDFLAGS += \
     -Tlinker.ld \
     -nostdlib \
     -zmax-page-size=0x1000 \
@@ -21,40 +34,58 @@ override INTERNALLDFLAGS :=         \
     --no-dynamic-linker \
     -ztext
 
-override INTERNAL_LD_FLAGS_MULTIBOOT2 := \
+override LDFLAGS_MB2 := \
     -m elf_i386 \
     -Tmultiboot2.ld \
     -nostdlib \
     -zmax-page-size=0x1000 \
     -static
 
-override INTERNAL_LD_FLAGS_MULTIBOOT1 := \
+override LDFLAGS_MB1 := \
     -m elf_i386 \
     -Tmultiboot.ld \
     -nostdlib \
     -zmax-page-size=0x1000 \
     -static
 
-override INTERNALCFLAGS  :=       \
+override CFLAGS += \
     -std=c11 \
+    -nostdinc \
     -ffreestanding \
     -fno-stack-protector \
     -fno-stack-check \
     -fno-lto \
     -fPIE \
-	-mgeneral-regs-only  \
-	-mno-red-zone        \
+    -I../freestanding-headers \
     -I. \
-	-I..                 \
     -D_LIMINE_PROTO
 
-ifneq ($(findstring riscv,$(CC_FOR_TARGET)),)
-override INTERNALCFLAGS += -march=rv64imac -mabi=lp64 -mno-relax
-override INTERNALLDFLAGS += --no-relax
+ifneq ($(findstring x86_64,$(CC_FOR_TARGET)),)
+override CFLAGS += \
+    -m64 \
+    -march=x86-64 \
+    -mabi=sysv \
+    -mgeneral-regs-only \
+    -mno-red-zone
 endif
 
-override INTERNALCFLAGS_MB  :=    \
+ifneq ($(findstring aarch64,$(CC_FOR_TARGET)),)
+override CFLAGS += \
+    -mgeneral-regs-only
+endif
+
+ifneq ($(findstring riscv64,$(CC_FOR_TARGET)),)
+override CFLAGS += \
+    -march=rv64imac \
+    -mabi=lp64 \
+    -mno-relax
+override LDFLAGS += \
+    --no-relax
+endif
+
+override CFLAGS_MB := \
     -std=c11 \
+    -nostdinc \
     -ffreestanding \
     -fno-stack-protector \
     -fno-stack-check \
@@ -64,9 +95,9 @@ override INTERNALCFLAGS_MB  :=    \
     -m32 \
     -march=i686 \
     -mabi=sysv \
-	-mno-80387           \
+    -mgeneral-regs-only \
+    -I../freestanding-headers \
     -I. \
-	-I..                 \
     -I../common/protos
 
 ifneq ($(findstring 86,$(CC_FOR_TARGET)),)
@@ -79,21 +110,26 @@ flanterm:
 	mkdir -p flanterm
 	cp -rv ../common/flanterm/* ./flanterm/
 
+limine.h:
+	cp -v ../limine.h ./
+
 test.elf: limine.o e9print.o memory.o flanterm/flanterm.o flanterm/backends/fb.o
-	$(LD) $^ $(LDFLAGS) $(INTERNALLDFLAGS) -o $@
+	$(LD) $^ $(LDFLAGS) -o $@
 
 multiboot2.elf: multiboot2_trampoline.o
-	$(CC) $(CFLAGS) $(INTERNALCFLAGS_MB) -c multiboot2.c -o multiboot2.o
-	$(CC) $(CFLAGS) $(INTERNALCFLAGS_MB) -c e9print.c -o e9print.o
-	$(LD) $^ multiboot2.o e9print.o $(LDFLAGS) $(INTERNAL_LD_FLAGS_MULTIBOOT2) -m elf_i386 -o $@
+	$(CC) $(CFLAGS_MB) -c memory.c -o memory.o
+	$(CC) $(CFLAGS_MB) -c multiboot2.c -o multiboot2.o
+	$(CC) $(CFLAGS_MB) -c e9print.c -o e9print.o
+	$(LD) $^ memory.o multiboot2.o e9print.o $(LDFLAGS_MB2) -o $@
 
 multiboot.elf: multiboot_trampoline.o
-	$(CC) $(CFLAGS) $(INTERNALCFLAGS_MB) -c multiboot.c -o multiboot.o
-	$(CC) $(CFLAGS) $(INTERNALCFLAGS_MB) -c e9print.c -o e9print.o
-	$(LD) $^ multiboot.o e9print.o $(LDFLAGS) $(INTERNAL_LD_FLAGS_MULTIBOOT1) -m elf_i386 -o $@
+	$(CC) $(CFLAGS_MB) -c memory.c -o memory.o
+	$(CC) $(CFLAGS_MB) -c multiboot.c -o multiboot.o
+	$(CC) $(CFLAGS_MB) -c e9print.c -o e9print.o
+	$(LD) $^ memory.o multiboot.o e9print.o $(LDFLAGS_MB1) -o $@
 
-%.o: %.c flanterm
-	$(CC) $(CFLAGS) $(INTERNALCFLAGS) -c $< -o $@
+%.o: %.c flanterm limine.h
+	$(CC) $(CFLAGS) -c $< -o $@
 
 %.o: %.asm
 	nasm -felf32 -F dwarf -g $< -o $@
@@ -102,4 +138,4 @@ clean:
 	rm -rf test.elf limine.o e9print.o memory.o
 	rm -rf multiboot2.o multiboot2.elf multiboot2_trampoline.o
 	rm -rf multiboot.o multiboot_trampoline.o multiboot.elf
-	rm -rf flanterm
+	rm -rf flanterm limine.h

test/limine.c

@@ -236,7 +236,7 @@ extern char kernel_start[];
 
 struct flanterm_context *ft_ctx = NULL;
 
-void limine_main(void) {
+static void limine_main(void) {
     e9_printf("\nWe're alive");
 
     struct limine_framebuffer *fb = framebuffer_request.response->framebuffers[0];

test/linker.ld

@@ -1,5 +1,3 @@
-ENTRY(limine_main)
-
 PHDRS
 {
     text    PT_LOAD    FLAGS((1 << 0) | (1 << 2)) ; /* Execute + Read */