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MIPS: start.S: use symbol __image_copy_end for U-Boot image relocation

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Use the newly introduced symbol __image_copy_end as end address for
relocation of U-Boot image. This is needed for dynamic relocation added
in later patches. This patch obsoletes the symbols uboot_end and
uboot_end_data which are removed.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
This commit is contained in:
Daniel Schwierzeck 2013-02-12 22:22:13 +01:00
parent 696a3b2a53
commit 28875e2c47
5 changed files with 9 additions and 19 deletions
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7
arch/mips/cpu/mips32/start.S
View File

@ -173,7 +173,7 @@ relocate_code:
sub s1, s2, t0 # s1 <-- relocation offset
la t3, in_ram
lw t2, -12(t3) # t2 <-- uboot_end_data
lw t2, -12(t3) # t2 <-- __image_copy_end
move t1, a2
add gp, s1 # adjust gp
@ -201,9 +201,8 @@ relocate_code:
jr t0
nop
.word __image_copy_end
.word _GLOBAL_OFFSET_TABLE_
.word uboot_end_data
.word uboot_end
.word num_got_entries
in_ram:
@ -214,7 +213,7 @@ in_ram:
* generated by GNU ld. Skip these reserved entries from relocation.
*/
lw t3, -4(t0) # t3 <-- num_got_entries
lw t4, -16(t0) # t4 <-- _GLOBAL_OFFSET_TABLE_
lw t4, -8(t0) # t4 <-- _GLOBAL_OFFSET_TABLE_
add t4, s1 # t4 now holds relocated _G_O_T_
addi t4, t4, 8 # skipping first two entries
li t2, 2

7
arch/mips/cpu/mips64/start.S
View File

@ -165,7 +165,7 @@ relocate_code:
dsub s1, s2, t0 # s1 <-- relocation offset
dla t3, in_ram
ld t2, -24(t3) # t2 <-- uboot_end_data
ld t2, -24(t3) # t2 <-- __image_copy_end
move t1, a2
dadd gp, s1 # adjust gp
@ -193,9 +193,8 @@ relocate_code:
jr t0
nop
.dword __image_copy_end
.dword _GLOBAL_OFFSET_TABLE_
.dword uboot_end_data
.dword uboot_end
.dword num_got_entries
in_ram:
@ -206,7 +205,7 @@ in_ram:
* generated by GNU ld. Skip these reserved entries from relocation.
*/
ld t3, -8(t0) # t3 <-- num_got_entries
ld t8, -32(t0) # t8 <-- _GLOBAL_OFFSET_TABLE_
ld t8, -16(t0) # t8 <-- _GLOBAL_OFFSET_TABLE_
dadd t8, s1 # t8 now holds relocated _G_O_T_
daddi t8, t8, 16 # skipping first two entries
dli t2, 2

4
arch/mips/cpu/u-boot.lds
View File

@ -67,8 +67,6 @@ SECTIONS
#include <u-boot.lst>
}
uboot_end_data = .;
. = ALIGN(4);
__image_copy_end = .;
@ -80,6 +78,4 @@ SECTIONS
. = ALIGN(4);
__bss_end = .;
}
uboot_end = .;
}

7
arch/mips/cpu/xburst/start.S
View File

@ -67,7 +67,7 @@ relocate_code:
sub t6, a2, t0 # t6 <-- relocation offset
la t3, in_ram
lw t2, -12(t3) # t2 <-- uboot_end_data
lw t2, -12(t3) # t2 <-- __image_copy_end
move t1, a2
add gp, t6 # adjust gp
@ -116,9 +116,8 @@ relocate_code:
jr t0
nop
.word __image_copy_end
.word _GLOBAL_OFFSET_TABLE_
.word uboot_end_data
.word uboot_end
.word num_got_entries
in_ram:
@ -129,7 +128,7 @@ in_ram:
* generated by GNU ld. Skip these reserved entries from relocation.
*/
lw t3, -4(t0) # t3 <-- num_got_entries
lw t4, -16(t0) # t4 <-- _GLOBAL_OFFSET_TABLE_
lw t4, -8(t0) # t4 <-- _GLOBAL_OFFSET_TABLE_
add t4, t6 # t4 now holds relocated _G_O_T_
addi t4, t4, 8 # skipping first two entries
li t2, 2

3
arch/mips/include/asm/u-boot-mips.h
View File

@ -5,9 +5,6 @@
* Copyright (C) 2003 Wolfgang Denk, DENX Software Engineering, wd@denx.de
*/
extern ulong uboot_end_data;
extern ulong uboot_end;
static inline unsigned long bss_start(void)
{
extern ulong __bss_start;