50 lines
1010 B
ArmAsm
50 lines
1010 B
ArmAsm
#include <linux/linkage.h>
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#include <asm/assembler.h>
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.section ".text_bare_init","ax"
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/*
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* Get the offset between the link address and the address
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* we are currently running at.
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*/
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ENTRY(get_runtime_offset)
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1: adr r0, 1b
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ldr r1, linkadr
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subs r0, r1, r0
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THUMB( subs r0, r0, #1)
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mov pc, lr
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linkadr:
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.word get_runtime_offset
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ENDPROC(get_runtime_offset)
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.globl __ld_var_base
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__ld_var_base:
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/*
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* Functions to calculate selected linker supplied variables during runtime.
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* This is needed for relocatable binaries when the linker variables are
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* needed before finxing up the relocations.
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*/
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.macro ld_var_entry name
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ENTRY(__ld_var_\name)
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ldr r0, __\name
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b 1f
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__\name: .word \name - __ld_var_base
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ENDPROC(__ld_var_\name)
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.endm
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ld_var_entry _text
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ld_var_entry __rel_dyn_start
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ld_var_entry __rel_dyn_end
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ld_var_entry __dynsym_start
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ld_var_entry __dynsym_end
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ld_var_entry _barebox_image_size
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ld_var_entry __bss_start
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ld_var_entry __bss_stop
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1:
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ldr r1, =__ld_var_base
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adds r0, r0, r1
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mov pc, lr
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