x86: Allow relocation code to build without text base
This code currently requires CONFIG_SYS_TEXT_BASE but this should be
unnecessary. As a first step, remove the build-time limitation and report an
error instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/lib/relocate.c b/arch/x86/lib/relocate.c
index 9e748d2..0d683bf 100644
--- a/arch/x86/lib/relocate.c
+++ b/arch/x86/lib/relocate.c
@@ -58,6 +58,7 @@
Elf32_Addr *offset_ptr_rom, *last_offset = NULL;
Elf32_Addr *offset_ptr_ram;
+ unsigned int text_base = 0;
/* The size of the region of u-boot that runs out of RAM. */
uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start;
@@ -67,29 +68,33 @@
if (re_src == re_end)
panic("No relocation data");
+#ifdef CONFIG_SYS_TEXT_BASE
+ text_base = CONFIG_SYS_TEXT_BASE;
+#else
+ panic("No CONFIG_SYS_TEXT_BASE");
+#endif
do {
/* Get the location from the relocation entry */
offset_ptr_rom = (Elf32_Addr *)re_src->r_offset;
/* Check that the location of the relocation is in .text */
- if (offset_ptr_rom >= (Elf32_Addr *)CONFIG_SYS_TEXT_BASE &&
- offset_ptr_rom > last_offset) {
+ if (offset_ptr_rom >= (Elf32_Addr *)text_base &&
+ offset_ptr_rom > last_offset) {
/* Switch to the in-RAM version */
offset_ptr_ram = (Elf32_Addr *)((ulong)offset_ptr_rom +
gd->reloc_off);
/* Check that the target points into .text */
- if (*offset_ptr_ram >= CONFIG_SYS_TEXT_BASE &&
- *offset_ptr_ram <=
- (CONFIG_SYS_TEXT_BASE + size)) {
+ if (*offset_ptr_ram >= text_base &&
+ *offset_ptr_ram <= text_base + size) {
*offset_ptr_ram += gd->reloc_off;
} else {
debug(" %p: rom reloc %x, ram %p, value %x,"
" limit %" PRIXPTR "\n", re_src,
re_src->r_offset, offset_ptr_ram,
*offset_ptr_ram,
- CONFIG_SYS_TEXT_BASE + size);
+ text_base + size);
}
} else {
debug(" %p: rom reloc %x, last %p\n", re_src,