.globl _bss_end_ofs
_bss_end_ofs:
- .word _end - _start
+ .word __bss_end__ - _start
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
mov sp, r4
adr r0, _start
+ cmp r0, r6
+ beq clear_bss /* skip relocation */
mov r1, r6 /* r1 <- scratch for copy_loop */
- ldr r2, _TEXT_BASE
ldr r3, _bss_start_ofs
add r2, r0, r3 /* r2 <- source end address */
- cmp r0, r6
- beq clear_bss
stmfd sp!, {r0-r12}
copy_loop:
ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */
add r0, r9 /* r0 <- location to fix up in RAM */
ldr r1, [r2, #4]
- and r8, r1, #0xff
- cmp r8, #23 /* relative fixup? */
+ and r7, r1, #0xff
+ cmp r7, #23 /* relative fixup? */
beq fixrel
- cmp r8, #2 /* absolute fixup? */
+ cmp r7, #2 /* absolute fixup? */
beq fixabs
/* ignore unknown type of fixup */
b fixnext
mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */
add r1, r10, r1 /* r1 <- address of symbol in table */
ldr r1, [r1, #4] /* r1 <- symbol value */
- add r1, r9 /* r1 <- relocated sym addr */
+ add r1, r1, r9 /* r1 <- relocated sym addr */
b fixnext
fixrel:
/* relative fix: increase location by offset */
#ifndef CONFIG_PRELOADER
ldr r0, _bss_start_ofs
ldr r1, _bss_end_ofs
- ldr r3, _TEXT_BASE /* Text base */
mov r4, r6 /* reloc addr */
add r0, r0, r4
add r1, r1, r4