diff options
| -rw-r--r-- | arch/arm/cpu/u-boot.lds | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds index d48a905..e148ab7 100644 --- a/arch/arm/cpu/u-boot.lds +++ b/arch/arm/cpu/u-boot.lds @@ -14,23 +14,24 @@ OUTPUT_ARCH(arm) ENTRY(_start) SECTIONS { +#if defined(CONFIG_ARMV7_SECURE_BASE) && defined(CONFIG_ARMV7_NONSEC) /* - * Discard the relocation entries for secure text. - * The secure code is bundled with u-boot image, so there will - * be relocations entries for the secure code, since we use - * "-mword-relocations" to compile and "-pie" to link into the - * final image. We do not need the relocation entries for secure - * code, because secure code will not be relocated, it only needs - * to be copied from loading address to CONFIG_ARMV7_SECURE_BASE, - * which is the linking and running address for secure code. - * If keep the relocation entries in .rel.dyn section, - * "relocation offset + linking address" may locates into an - * address that is reserved by SoC, then will trigger data abort. + * If CONFIG_ARMV7_SECURE_BASE is true, secure code will not + * bundle with u-boot, and code offsets are fixed. Secure zone + * only needs to be copied from the loading address to + * CONFIG_ARMV7_SECURE_BASE, which is the linking and running + * address for secure code. * - * The reason that move .rel._secure at the beginning, is to - * avoid hole in the final image. + * If CONFIG_ARMV7_SECURE_BASE is undefined, the secure zone will + * be included in u-boot address space, and some absolute address + * were used in secure code. The absolute addresses of the secure + * code also needs to be relocated along with the accompanying u-boot + * code. + * + * So DISCARD is only for CONFIG_ARMV7_SECURE_BASE. */ /DISCARD/ : { *(.rel._secure*) } +#endif . = 0x00000000; . = ALIGN(4); |