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x86: Fix incorrect usage of relocation offset

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x86 has always used relocation offset in the opposite sense to the ELF
standard - Fix this
This commit is contained in:
Graeme Russ 2011-02-12 15:12:05 +11:00
parent 0b2378557c
commit 5fed82110d
2 changed files with 6 additions and 6 deletions
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2
arch/i386/cpu/start.S
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@ -120,7 +120,7 @@ relocate_code:
/* Setup call address of in-RAM copy of board_init_r() */ /* Setup call address of in-RAM copy of board_init_r() */
movl $board_init_r, %ebp 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() */ /* Setup parameters to board_init_r() */
movl %edx, %eax movl %edx, %eax

10
arch/i386/lib/board.c
View File

@ -214,7 +214,7 @@ void board_init_f(ulong boot_flags)
addr_sp = dest_addr; addr_sp = dest_addr;
dest_addr -= CONFIG_SYS_STACK_SIZE; dest_addr -= CONFIG_SYS_STACK_SIZE;
dest_addr -= (bss_end - text_start); dest_addr -= (bss_end - text_start);
rel_offset = text_start - dest_addr; rel_offset = dest_addr - text_start;
/* First stage CPU initialization */ /* First stage CPU initialization */
if (cpu_init_f() != 0) if (cpu_init_f() != 0)
@ -233,8 +233,8 @@ void board_init_f(ulong boot_flags)
*dst_addr++ = *src_addr++; *dst_addr++ = *src_addr++;
/* Clear BSS */ /* Clear BSS */
dst_addr = (ulong *)(bss_start - rel_offset); dst_addr = (ulong *)(bss_start + rel_offset);
end_addr = (ulong *)(bss_end - rel_offset); end_addr = (ulong *)(bss_end + rel_offset);
while (dst_addr < end_addr) while (dst_addr < end_addr)
*dst_addr++ = 0x00000000; *dst_addr++ = 0x00000000;
@ -245,8 +245,8 @@ void board_init_f(ulong boot_flags)
do { do {
if (re_src->r_offset >= CONFIG_SYS_TEXT_BASE) if (re_src->r_offset >= CONFIG_SYS_TEXT_BASE)
if (*(Elf32_Addr *)(re_src->r_offset - rel_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; *(Elf32_Addr *)(re_src->r_offset + rel_offset) += rel_offset;
} while (re_src++ < re_end); } while (re_src++ < re_end);
gd->reloc_off = rel_offset; gd->reloc_off = rel_offset;