diff --git a/Bootloaders/CDC/BootloaderAPITable.S b/Bootloaders/CDC/BootloaderAPITable.S index a8e38861d5..cad8f71f60 100644 --- a/Bootloaders/CDC/BootloaderAPITable.S +++ b/Bootloaders/CDC/BootloaderAPITable.S @@ -28,41 +28,44 @@ this software. */ -; Bootloader API Jump Table -.section .apitable, "ax" - ; Trampolines to actual API implementations if the target address is outside the ; range of a rjmp instruction (can happen with large bootloader sections) -.org 0 -BootloaderAPI_ErasePage_Trampoline: - jmp BootloaderAPI_ErasePage -BootloaderAPI_WritePage_Trampoline: - jmp BootloaderAPI_WritePage -BootloaderAPI_FillWord_Trampoline: - jmp BootloaderAPI_FillWord -BootloaderAPI_ReadSignature_Trampoline: - jmp BootloaderAPI_ReadSignature -BootloaderAPI_ReadFuse_Trampoline: - jmp BootloaderAPI_ReadFuse -BootloaderAPI_ReadLock_Trampoline: - jmp BootloaderAPI_ReadLock -BootloaderAPI_WriteLock_Trampoline: - jmp BootloaderAPI_WriteLock -BootloaderAPU_UNUSED1: - ret -BootloaderAPU_UNUSED2: - ret -BootloaderAPU_UNUSED3: - ret -BootloaderAPU_UNUSED4: - ret -BootloaderAPU_UNUSED5: - ret +.section .apitable_trampolines, "ax" +.global BootloaderAPI_Trampolines +BootloaderAPI_Trampolines: + + BootloaderAPI_ErasePage_Trampoline: + jmp BootloaderAPI_ErasePage + BootloaderAPI_WritePage_Trampoline: + jmp BootloaderAPI_WritePage + BootloaderAPI_FillWord_Trampoline: + jmp BootloaderAPI_FillWord + BootloaderAPI_ReadSignature_Trampoline: + jmp BootloaderAPI_ReadSignature + BootloaderAPI_ReadFuse_Trampoline: + jmp BootloaderAPI_ReadFuse + BootloaderAPI_ReadLock_Trampoline: + jmp BootloaderAPI_ReadLock + BootloaderAPI_WriteLock_Trampoline: + jmp BootloaderAPI_WriteLock + BootloaderAPU_UNUSED1: + ret + BootloaderAPU_UNUSED2: + ret + BootloaderAPU_UNUSED3: + ret + BootloaderAPU_UNUSED4: + ret + BootloaderAPU_UNUSED5: + ret + + ; API function jump table -.org (96 - 32) +.section .apitable_jumptable, "ax" .global BootloaderAPI_JumpTable BootloaderAPI_JumpTable: + rjmp BootloaderAPI_ErasePage_Trampoline rjmp BootloaderAPI_WritePage_Trampoline rjmp BootloaderAPI_FillWord_Trampoline @@ -76,10 +79,13 @@ BootloaderAPI_JumpTable: rjmp BootloaderAPU_UNUSED4 ; UNUSED ENTRY 4 rjmp BootloaderAPU_UNUSED5 ; UNUSED ENTRY 5 + + ; Bootloader table signatures and information -.org (96 - 8) -BootloaderAPI_Signatures: +.section .apitable_signatures, "ax" .global BootloaderAPI_Signatures +BootloaderAPI_Signatures: + .long BOOT_START_ADDR ; Start address of the bootloader - .word 0xCDC1 ; Signature for the CDC class bootloader, V1 + .word 0xDFB1 ; Signature for the DFU class bootloader, V1 .word 0xDCFB ; Signature for a LUFA class bootloader diff --git a/Bootloaders/CDC/makefile b/Bootloaders/CDC/makefile index 68bf4c63ff..2c21fb69f4 100644 --- a/Bootloaders/CDC/makefile +++ b/Bootloaders/CDC/makefile @@ -15,10 +15,15 @@ FLASH_SIZE_KB := 128 BOOT_SECTION_SIZE_KB := 8 -# Bootloader address calculations (requires the "bc" unix utility) - do -# not modify these calculations, but rather modify the depedant values above. +# Bootloader address calculations (requires the "bc" unix utility) and +# API section start directives - do not modify these macros, but rather +# modify the depedant values above. BOOT_START := 0x$(shell echo "obase=16; ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024" | bc) -BOOT_API_TABLESTART := 0x$(shell echo "obase=16; (($(FLASH_SIZE_KB) * 1024) - 96)" | bc) +BOOT_SEC_OFFSET = 0x$(shell echo "obase=16; (($(FLASH_SIZE_KB) * 1024) - $(strip $(1)))" | bc) +BOOT_SECTION_LD_FLAG = -Wl,--section-start=.apitable_$(strip $(1))=$(call BOOT_SEC_OFFSET, $(3)) -Wl,--undefined=BootloaderAPI_$(strip $(2)) +BOOT_API_LD_FLAGS := $(call BOOT_SECTION_LD_FLAG, trampolines, Trampolines, (48 + 32 + 8)) +BOOT_API_LD_FLAGS += $(call BOOT_SECTION_LD_FLAG, jumptable, JumpTable, (32 + 8)) +BOOT_API_LD_FLAGS += $(call BOOT_SECTION_LD_FLAG, signatures, Signatures, 8) MCU = at90usb1287 ARCH = AVR8 @@ -30,7 +35,7 @@ TARGET = BootloaderCDC SRC = $(TARGET).c Descriptors.c BootloaderAPI.c BootloaderAPITable.S $(LUFA_SRC_USB) LUFA_PATH = ../../LUFA/ CC_FLAGS = -DUSE_LUFA_CONFIG_HEADER -IConfig/ -DBOOT_START_ADDR=$(BOOT_START) -LD_FLAGS = -Wl,--section-start=.text=$(BOOT_START) -Wl,--section-start=.apitable=$(BOOT_API_TABLESTART) -Wl,--undefined=BootloaderAPI_JumpTable +LD_FLAGS = -Wl,--section-start=.text=$(BOOT_START) $(BOOT_API_LD_FLAGS) # Default target all: diff --git a/Bootloaders/DFU/BootloaderAPITable.S b/Bootloaders/DFU/BootloaderAPITable.S index 18ae390fc7..cad8f71f60 100644 --- a/Bootloaders/DFU/BootloaderAPITable.S +++ b/Bootloaders/DFU/BootloaderAPITable.S @@ -28,41 +28,44 @@ this software. */ -; Bootloader API Jump Table -.section .apitable, "ax" - ; Trampolines to actual API implementations if the target address is outside the ; range of a rjmp instruction (can happen with large bootloader sections) -.org 0 -BootloaderAPI_ErasePage_Trampoline: - jmp BootloaderAPI_ErasePage -BootloaderAPI_WritePage_Trampoline: - jmp BootloaderAPI_WritePage -BootloaderAPI_FillWord_Trampoline: - jmp BootloaderAPI_FillWord -BootloaderAPI_ReadSignature_Trampoline: - jmp BootloaderAPI_ReadSignature -BootloaderAPI_ReadFuse_Trampoline: - jmp BootloaderAPI_ReadFuse -BootloaderAPI_ReadLock_Trampoline: - jmp BootloaderAPI_ReadLock -BootloaderAPI_WriteLock_Trampoline: - jmp BootloaderAPI_WriteLock -BootloaderAPU_UNUSED1: - ret -BootloaderAPU_UNUSED2: - ret -BootloaderAPU_UNUSED3: - ret -BootloaderAPU_UNUSED4: - ret -BootloaderAPU_UNUSED5: - ret +.section .apitable_trampolines, "ax" +.global BootloaderAPI_Trampolines +BootloaderAPI_Trampolines: + + BootloaderAPI_ErasePage_Trampoline: + jmp BootloaderAPI_ErasePage + BootloaderAPI_WritePage_Trampoline: + jmp BootloaderAPI_WritePage + BootloaderAPI_FillWord_Trampoline: + jmp BootloaderAPI_FillWord + BootloaderAPI_ReadSignature_Trampoline: + jmp BootloaderAPI_ReadSignature + BootloaderAPI_ReadFuse_Trampoline: + jmp BootloaderAPI_ReadFuse + BootloaderAPI_ReadLock_Trampoline: + jmp BootloaderAPI_ReadLock + BootloaderAPI_WriteLock_Trampoline: + jmp BootloaderAPI_WriteLock + BootloaderAPU_UNUSED1: + ret + BootloaderAPU_UNUSED2: + ret + BootloaderAPU_UNUSED3: + ret + BootloaderAPU_UNUSED4: + ret + BootloaderAPU_UNUSED5: + ret + + ; API function jump table -.org (96 - 32) +.section .apitable_jumptable, "ax" .global BootloaderAPI_JumpTable BootloaderAPI_JumpTable: + rjmp BootloaderAPI_ErasePage_Trampoline rjmp BootloaderAPI_WritePage_Trampoline rjmp BootloaderAPI_FillWord_Trampoline @@ -76,10 +79,13 @@ BootloaderAPI_JumpTable: rjmp BootloaderAPU_UNUSED4 ; UNUSED ENTRY 4 rjmp BootloaderAPU_UNUSED5 ; UNUSED ENTRY 5 + + ; Bootloader table signatures and information -.org (96 - 8) -BootloaderAPI_Signatures: +.section .apitable_signatures, "ax" .global BootloaderAPI_Signatures +BootloaderAPI_Signatures: + .long BOOT_START_ADDR ; Start address of the bootloader .word 0xDFB1 ; Signature for the DFU class bootloader, V1 .word 0xDCFB ; Signature for a LUFA class bootloader diff --git a/Bootloaders/DFU/makefile b/Bootloaders/DFU/makefile index 75b36ec639..3ee61fc8d0 100644 --- a/Bootloaders/DFU/makefile +++ b/Bootloaders/DFU/makefile @@ -15,10 +15,15 @@ FLASH_SIZE_KB := 128 BOOT_SECTION_SIZE_KB := 8 -# Bootloader address calculations (requires the "bc" unix utility) - do -# not modify these calculations, but rather modify the depedant values above. +# Bootloader address calculations (requires the "bc" unix utility) and +# API section start directives - do not modify these macros, but rather +# modify the depedant values above. BOOT_START := 0x$(shell echo "obase=16; ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024" | bc) -BOOT_API_TABLESTART := 0x$(shell echo "obase=16; (($(FLASH_SIZE_KB) * 1024) - 96)" | bc) +BOOT_SEC_OFFSET = 0x$(shell echo "obase=16; (($(FLASH_SIZE_KB) * 1024) - $(strip $(1)))" | bc) +BOOT_SECTION_LD_FLAG = -Wl,--section-start=.apitable_$(strip $(1))=$(call BOOT_SEC_OFFSET, $(3)) -Wl,--undefined=BootloaderAPI_$(strip $(2)) +BOOT_API_LD_FLAGS := $(call BOOT_SECTION_LD_FLAG, trampolines, Trampolines, (48 + 32 + 8)) +BOOT_API_LD_FLAGS += $(call BOOT_SECTION_LD_FLAG, jumptable, JumpTable, (32 + 8)) +BOOT_API_LD_FLAGS += $(call BOOT_SECTION_LD_FLAG, signatures, Signatures, 8) MCU = at90usb1287 ARCH = AVR8 @@ -30,7 +35,7 @@ TARGET = BootloaderDFU SRC = $(TARGET).c Descriptors.c BootloaderAPI.c BootloaderAPITable.S $(LUFA_SRC_USB) LUFA_PATH = ../../LUFA/ CC_FLAGS = -DUSE_LUFA_CONFIG_HEADER -IConfig/ -DBOOT_START_ADDR=$(BOOT_START) -LD_FLAGS = -Wl,--section-start=.text=$(BOOT_START) -Wl,--section-start=.apitable=$(BOOT_API_TABLESTART) -Wl,--undefined=BootloaderAPI_JumpTable +LD_FLAGS = -Wl,--section-start=.text=$(BOOT_START) $(BOOT_API_LD_FLAGS) # Default target all: