The fw_dtb_pointer was defined in the assembly code, which makes him
live in section .text_rest
Put that's not necessary, we can push the variable in the .data section.
This will prevent relocation errors like:
board/raspberrypi/rpi/rpi.c:317:(.text.board_get_usable_ram_top+0x8):
relocation truncated to fit: R_AARCH64_LDST64_ABS_LO12_NC against symbol
`fw_dtb_pointer' defined in .text section in board/raspberrypi/rpi/built-in.o
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
#include <config.h>
-.align 8
-.global fw_dtb_pointer
-fw_dtb_pointer:
-#ifdef CONFIG_ARM64
- .dword 0x0
-#else
- .word 0x0
-#endif
-
/*
* Routine: save_boot_params (called after reset from start.S)
* Description: save ATAG/FDT address provided by the firmware at boot time
adr x8, fw_dtb_pointer
str x0, [x8]
#else
- str r2, fw_dtb_pointer
+ ldr r8, =fw_dtb_pointer
+ str r2, [r8]
#endif
/* Returns */
DECLARE_GLOBAL_DATA_PTR;
-/* From lowlevel_init.S */
-extern unsigned long fw_dtb_pointer;
+/* Assigned in lowlevel_init.S
+ * Push the variable into the .data section so that it
+ * does not get cleared later.
+ */
+unsigned long __section(".data") fw_dtb_pointer;
/* TODO(sjg@chromium.org): Move these to the msg.c file */
struct msg_get_arm_mem {