[U-Boot] [PATCH 27/32] x86: Fix incorrect usage of relocation offset
Graeme Russ
graeme.russ at gmail.com
Fri Feb 4 13:35:54 CET 2011
x86 has always used relocation offset in the opposite sense to the ELF
standard - Fix this
Signed-off-by: Graeme Russ <graeme.russ at gmail.com>
---
arch/i386/cpu/start.S | 2 +-
arch/i386/lib/board.c | 10 +++++-----
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/i386/cpu/start.S b/arch/i386/cpu/start.S
index fd018bf..0031389 100644
--- a/arch/i386/cpu/start.S
+++ b/arch/i386/cpu/start.S
@@ -120,7 +120,7 @@ relocate_code:
/* Setup call address of in-RAM copy of board_init_r() */
movl $board_init_r, %ebp
- subl (GD_RELOC_OFF * 4)(%edx), %ebp
+ addl (GD_RELOC_OFF * 4)(%edx), %ebp
/* Setup parameters to board_init_r() */
movl %edx, %eax
diff --git a/arch/i386/lib/board.c b/arch/i386/lib/board.c
index 44441a9..02cb67d 100644
--- a/arch/i386/lib/board.c
+++ b/arch/i386/lib/board.c
@@ -214,7 +214,7 @@ void board_init_f(ulong boot_flags)
addr_sp = dest_addr;
dest_addr -= CONFIG_SYS_STACK_SIZE;
dest_addr -= (bss_end - text_start);
- rel_offset = text_start - dest_addr;
+ rel_offset = dest_addr - text_start;
/* First stage CPU initialization */
if (cpu_init_f() != 0)
@@ -233,8 +233,8 @@ void board_init_f(ulong boot_flags)
*dst_addr++ = *src_addr++;
/* Clear BSS */
- dst_addr = (ulong *)(bss_start - rel_offset);
- end_addr = (ulong *)(bss_end - rel_offset);
+ dst_addr = (ulong *)(bss_start + rel_offset);
+ end_addr = (ulong *)(bss_end + rel_offset);
while (dst_addr < end_addr)
*dst_addr++ = 0x00000000;
@@ -245,8 +245,8 @@ void board_init_f(ulong boot_flags)
do {
if (re_src->r_offset >= CONFIG_SYS_TEXT_BASE)
- if (*(Elf32_Addr *)(re_src->r_offset - rel_offset) >= CONFIG_SYS_TEXT_BASE)
- *(Elf32_Addr *)(re_src->r_offset - rel_offset) -= rel_offset;
+ if (*(Elf32_Addr *)(re_src->r_offset + rel_offset) >= CONFIG_SYS_TEXT_BASE)
+ *(Elf32_Addr *)(re_src->r_offset + rel_offset) += rel_offset;
} while (re_src++ < re_end);
gd->reloc_off = rel_offset;
--
1.7.1.422.g049e9
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