meso: miscellaneous cleanup and build fixes

mesosphere/kernel_ldr/Makefile

@@ -11,6 +11,7 @@ ifneq ($(BUILD),$(notdir $(CURDIR)))
 #---------------------------------------------------------------------------------
 
 export OUTPUT	:=	$(CURDIR)/$(TARGET)
+export TOPDIR	:=	$(CURDIR)
 export DEPSDIR  :=  $(CURDIR)/$(BUILD)
 
 export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
@@ -59,21 +60,23 @@ export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
 
 export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)
 
-.PHONY: clean all
+.PHONY: $(BUILD) clean all
 
 #---------------------------------------------------------------------------------
-all: $(BUILD)
+all: $(BUILD) check_libmeso
 
-$(BUILD):
+$(BUILD): check_libmeso
 	@[ -d $@ ] || mkdir -p $@
 	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
 
+check_libmeso:
+	@$(MAKE) --no-print-directory -C ../../libraries/libmesosphere
+
 #---------------------------------------------------------------------------------
 clean:
 	@echo clean ...
 	@rm -fr $(BUILD) $(OUTPUT).bin $(OUTPUT).elf
 
-
 #---------------------------------------------------------------------------------
 else
 .PHONY:	all
@@ -89,7 +92,7 @@ $(OUTPUT).bin	:	$(OUTPUT).elf
 	$(OBJCOPY) -S -O binary $< $@
 	@echo built ... $(notdir $@)
 
-$(OUTPUT).elf	:	$(OFILES)
+$(OUTPUT).elf	:	$(OFILES) ../../../libraries/libmesosphere/lib/libmesosphere.a
 
 %.elf:
 	@echo linking $(notdir $@)

mesosphere/kernel_ldr/kernel_ldr.ld

@@ -73,7 +73,6 @@ SECTIONS
 	.gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } :krnlldr
 	.gnu_extab        : ONLY_IF_RO { *(.gnu_extab*) } : rodata
 
-	__dynamic__start__ = . ;
 	.dynamic           : { *(.dynamic) } :krnlldr :dyn
 	.dynsym            : { *(.dynsym) } :krnlldr
 	.dynstr            : { *(.dynstr) } :krnlldr

mesosphere/kernel_ldr/source/start.s

@@ -89,7 +89,7 @@ __external_references:
     .quad __bss_start__ - _start
     .quad __bss_end__   - _start
     .quad __stack_end - _start
-    .quad __dynamic__start__ - _start
+    .quad _DYNAMIC - _start
     .quad __init_array_start - _start
     .quad __init_array_end   - _start
     .quad __vectors_start__  - _start