mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
09f05d8529
Add the arch-specific code to support jump labels for ARM and Thumb-2. This code will only be activated on compilers that are capable of building it. It has been tested with GCC 4.6 patched with the patch from GCC bug 48637. Cc: Jason Baron <jbaron@redhat.com> Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
30 lines
563 B
C
30 lines
563 B
C
#ifndef __ASM_ARM_INSN_H
|
|
#define __ASM_ARM_INSN_H
|
|
|
|
static inline unsigned long
|
|
arm_gen_nop(void)
|
|
{
|
|
#ifdef CONFIG_THUMB2_KERNEL
|
|
return 0xf3af8000; /* nop.w */
|
|
#else
|
|
return 0xe1a00000; /* mov r0, r0 */
|
|
#endif
|
|
}
|
|
|
|
unsigned long
|
|
__arm_gen_branch(unsigned long pc, unsigned long addr, bool link);
|
|
|
|
static inline unsigned long
|
|
arm_gen_branch(unsigned long pc, unsigned long addr)
|
|
{
|
|
return __arm_gen_branch(pc, addr, false);
|
|
}
|
|
|
|
static inline unsigned long
|
|
arm_gen_branch_link(unsigned long pc, unsigned long addr)
|
|
{
|
|
return __arm_gen_branch(pc, addr, true);
|
|
}
|
|
|
|
#endif
|