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qmk_firmware
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Use the proper "-Wl,--undefined=BootloaderAPI_JumpTable" linker command line parameter in the bootloaders to ensure that the API jump tables are not discarded, rather than the previous C volatile pointer hack (thanks to Opendous Inc.).

This commit is contained in:
Dean Camera 2011-11-23 14:09:01 +00:00
parent d619214854
commit 075538abb9
6 changed files with 2 additions and 16 deletions
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3
Bootloaders/CDC/BootloaderAPI.h
View File

@ -43,9 +43,6 @@
#include <LUFA/Common/Common.h>
/* External Variables: */
extern uint8_t* BootloaderAPI_JumpTable;
/* Function Prototypes: */
void BootloaderAPI_ErasePage(uint32_t Address);
void BootloaderAPI_WritePage(uint32_t Address);

4
Bootloaders/CDC/BootloaderCDC.c
View File

@ -63,10 +63,6 @@ static bool RunBootloader = true;
*/
int main(void)
{
/* Force a reference to the API jump table to prevent the linker from discarding it */
uint8_t* volatile Dummy = BootloaderAPI_JumpTable;
(void)Dummy;
/* Setup hardware required for the bootloader */
SetupHardware();

2
Bootloaders/CDC/makefile
View File

@ -340,7 +340,7 @@ EXTMEMOPTS =
# -Map: create map file
# --cref: add cross reference to map file
LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
LDFLAGS += -Wl,--section-start=.text=$(BOOT_START) -Wl,--section-start=.apitable=$(BOOT_API_TABLESTART)
LDFLAGS += -Wl,--section-start=.text=$(BOOT_START) -Wl,--section-start=.apitable=$(BOOT_API_TABLESTART) -Wl,--undefined=BootloaderAPI_JumpTable
LDFLAGS += -Wl,--relax
LDFLAGS += -Wl,--gc-sections
LDFLAGS += $(EXTMEMOPTS)

3
Bootloaders/DFU/BootloaderAPI.h
View File

@ -43,9 +43,6 @@
#include <LUFA/Common/Common.h>
/* External Variables: */
extern uint8_t* BootloaderAPI_JumpTable;
/* Function Prototypes: */
void BootloaderAPI_ErasePage(uint32_t Address);
void BootloaderAPI_WritePage(uint32_t Address);

4
Bootloaders/DFU/BootloaderDFU.c
View File

@ -99,10 +99,6 @@ static uint16_t EndAddr = 0x0000;
*/
int main(void)
{
/* Force a reference to the API jump table to prevent the linker from discarding it */
uint8_t* volatile Dummy = BootloaderAPI_JumpTable;
(void)Dummy;
/* Configure hardware required by the bootloader */
SetupHardware();

2
Bootloaders/DFU/makefile
View File

@ -335,7 +335,7 @@ EXTMEMOPTS =
# -Map: create map file
# --cref: add cross reference to map file
LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
LDFLAGS += -Wl,--section-start=.text=$(BOOT_START) -Wl,--section-start=.apitable=$(BOOT_API_TABLESTART)
LDFLAGS += -Wl,--section-start=.text=$(BOOT_START) -Wl,--section-start=.apitable=$(BOOT_API_TABLESTART) -Wl,--undefined=BootloaderAPI_JumpTable
LDFLAGS += -Wl,--relax
LDFLAGS += -Wl,--gc-sections
LDFLAGS += $(EXTMEMOPTS)