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arm1176: bugfix: fix start.S for ELF relocation 

The start.S file was only half-rewritten for ELF relocations.
This bugfix completes the rewrite.

Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
This commit is contained in:
Albert Aribaud 2010-11-26 19:42:10 +01:00 committed by Wolfgang Denk
parent 3336ca60d4
commit e42a7dff09
1 changed files with 13 additions and 34 deletions
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47
arch/arm/cpu/arm1176/start.S
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@ -123,34 +123,6 @@ _bss_start_ofs:
_bss_end_ofs:
.word _end - _start
.globl _datarel_start_ofs
_datarel_start_ofs:
.word __datarel_start - _start
.globl _datarelrolocal_start_ofs
_datarelrolocal_start_ofs:
.word __datarelrolocal_start - _start
.globl _datarellocal_start_ofs
_datarellocal_start_ofs:
.word __datarellocal_start - _start
.globl _datarelro_start_ofs
_datarelro_start_ofs:
.word __datarelro_start - _start
.globl _rel_dyn_start_ofs
_rel_dyn_start_ofs:
.word __rel_dyn_start - _start
.globl _rel_dyn_end_ofs
_rel_dyn_end_ofs:
.word __rel_dyn_end - _start
.globl _dynsym_start_ofs
_dynsym_start_ofs:
.word __dynsym_start - _start
/* IRQ stack memory (calculated at run-time) + 8 bytes */
.globl IRQ_STACK_START_IN
IRQ_STACK_START_IN:
@ -300,13 +272,13 @@ copy_loop:
ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */
add r3, r3, r0 /* r3 <- rel dyn end in FLASH */
fixloop:
ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */
add r0, r0, r9 /* r0 <- location to fix up in RAM */
ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */
add r0, r0, r9 /* r0 <- location to fix up in RAM */
ldr r1, [r2, #4]
and r8, r1, #0xff
cmp r8, #23 /* relative fixup? */
cmp r8, #23 /* relative fixup? */
beq fixrel
cmp r8, #2 /* absolute fixup? */
cmp r8, #2 /* absolute fixup? */
beq fixabs
/* ignore unknown type of fixup */
b fixnext
@ -315,7 +287,7 @@ fixabs:
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, r1, r9 /* r1 <- relocated sym addr */
add r1, r9 /* r1 <- relocated sym addr */
b fixnext
fixrel:
/* relative fix: increase location by offset */
@ -323,7 +295,7 @@ fixrel:
add r1, r1, r9
fixnext:
str r1, [r0]
add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
cmp r2, r3
blo fixloop
#endif
@ -408,6 +380,13 @@ _board_init_r_ofs:
.word board_init_r - _start
#endif
_rel_dyn_start_ofs:
.word __rel_dyn_start - _start
_rel_dyn_end_ofs:
.word __rel_dyn_end - _start
_dynsym_start_ofs:
.word __dynsym_start - _start
#ifdef CONFIG_ENABLE_MMU
_mmu_table_base:
.word mmu_table