Prematurely jumping into kernel_main

Makefile

@@ -28,7 +28,7 @@ INCLUDES       += -isystem $(EFI_INCLUDES)
 INCLUDES       += -isystem $(EFI_INCLUDES)/$(ARCH)
 INCLUDES       += -isystem $(EFI_INCLUDES)/protocol
 
-BASEFLAGS      := -O2 -fpic -nostdlib
+BASEFLAGS      := -O2 -nostdlib
 BASEFLAGS      += -ffreestanding -nodefaultlibs
 BASEFLAGS      += -fno-builtin -fomit-frame-pointer
 
@@ -51,7 +51,7 @@ WARNFLAGS      += -Wno-unused-but-set-parameter
 ASFLAGS        ?= 
 
 CFLAGS         := $(INCLUDES) $(DEPENDFLAGS) $(BASEFLAGS) $(WARNFLAGS)
-CFLAGS         += -std=c11 -fpic -fshort-wchar
+CFLAGS         += -std=c11 -fshort-wchar
 CFLAGS         += -mno-red-zone -fno-stack-protector 
 CFLAGS         += -DGIT_VERSION="L\"$(VERSION)\""
 CFLAGS         += -DKERNEL_FILENAME="L\"$(KERNEL_FILENAME)\""
@@ -64,10 +64,11 @@ ifdef MAX_HRES
 BOOT_CFLAGS    += -DMAX_HRES=$(MAX_HRES)
 endif
 
-LDFLAGS        := -L $(BUILD_D) -ggdb -fPIC -shared
+LDFLAGS        := -L $(BUILD_D) -ggdb -shared
 LDFLAGS        += -nostdlib -znocombreloc -Bsymbolic -nostartfiles 
 
 BOOT_LDFLAGS   := $(LDFLAGS)
+BOOT_LDFLAGS   += -fPIC
 BOOT_LDFLAGS   += -L $(EFI_ARCH_DIR)/lib -L $(EFI_ARCH_DIR)/gnuefi
 
 AS             ?= $(CROSS)as

src/arch/x86_64/kernel.ld

@@ -5,22 +5,24 @@ SECTIONS
 
 	.text : {
 		code = .;
+		*(.text.entry)
 		*(.text)
-		. = ALIGN(4096);
 	}
 
-	.data : {
+	.data ALIGN(0x1000) : {
 		 data = .;
 		 *(.data)
 		 *(.rodata)
-		 . = ALIGN(4096);
 	}
 
-	.bss : {
+	.bss ALIGN(0x1000) : {
 		bss = .;
 		*(.bss)
-		. = ALIGN(4096);
 	}
 
-	end = .;
+    .note ALIGN(0x1000) : {
+        *(.note.*)
+    }
+
+    end = ALIGN(4096);
 }

src/boot/main.c

@@ -43,6 +43,9 @@ efi_main (EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
 	Print(L" %u bytes at 0x%x", kernel_length, kernel_image);
     con_status_ok();
 
+    void (*kernel_main)() = kernel_image;
+    kernel_main();
+
     /*
 	con_status_begin(L"Virtualizing memory...");
     status = memory_virtualize();

src/modules/main/main.c

@@ -1,4 +1,5 @@
-__attribute__((used))
-int kernel_main() {
-    return 42;
+__attribute__((section(".text.entry")))
+void kernel_main() {
+    volatile int foo = 13;
+    return;
 }