Add core support for ARMv6/v7 big-endian
Starting with ARMv6, the CPUs support the BE-8 variant of big-endian (byte-invariant). This patch adds the core support: - setting of the BE-8 mode via the CPSR.E register for both kernel and user threads - big-endian page table walking - REV used to rotate instructions read from memory during fault processing as they are still little-endian format - Kconfig and Makefile support for BE-8. The --be8 option must be passed to the final linking stage to convert the instructions to little-endian Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
@ -71,6 +71,7 @@ struct thread_struct {
|
||||
regs->ARM_cpsr = USR26_MODE; \
|
||||
if (elf_hwcap & HWCAP_THUMB && pc & 1) \
|
||||
regs->ARM_cpsr |= PSR_T_BIT; \
|
||||
regs->ARM_cpsr |= PSR_ENDSTATE; \
|
||||
regs->ARM_pc = pc & ~1; /* pc */ \
|
||||
regs->ARM_sp = sp; /* sp */ \
|
||||
regs->ARM_r2 = stack[2]; /* r2 (envp) */ \
|
||||
|
Reference in New Issue
Block a user