diff options
Diffstat (limited to 'arch/arm/kernel/kprobes-arm.c')
| -rw-r--r-- | arch/arm/kernel/kprobes-arm.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/arch/arm/kernel/kprobes-arm.c b/arch/arm/kernel/kprobes-arm.c index 3c4678edcbf8..0262b29163d1 100644 --- a/arch/arm/kernel/kprobes-arm.c +++ b/arch/arm/kernel/kprobes-arm.c @@ -92,29 +92,6 @@ union reg_pair { }; /* - * For STR and STM instructions, an ARM core may choose to use either - * a +8 or a +12 displacement from the current instruction's address. - * Whichever value is chosen for a given core, it must be the same for - * both instructions and may not change. This function measures it. - */ - -static int str_pc_offset; - -static void __init find_str_pc_offset(void) -{ - int addr, scratch, ret; - - __asm__ ( - "sub %[ret], pc, #4 \n\t" - "str pc, %[addr] \n\t" - "ldr %[scr], %[addr] \n\t" - "sub %[ret], %[scr], %[ret] \n\t" - : [ret] "=r" (ret), [scr] "=r" (scratch), [addr] "+m" (addr)); - - str_pc_offset = ret; -} - -/* * The insnslot_?arg_r[w]flags() functions below are to keep the * msr -> *fn -> mrs instruction sequences indivisible so that * the state of the CPSR flags aren't inadvertently modified @@ -1569,8 +1546,3 @@ arm_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi) return space_cccc_11xx(insn, asi); } - -void __init arm_kprobe_decode_init(void) -{ - find_str_pc_offset(); -} |