diff options
Diffstat (limited to 'arch/nios2/kernel/misaligned.c')
| -rw-r--r-- | arch/nios2/kernel/misaligned.c | 20 |
1 files changed, 1 insertions, 19 deletions
diff --git a/arch/nios2/kernel/misaligned.c b/arch/nios2/kernel/misaligned.c index 4e5907a0c..23e0544e1 100644 --- a/arch/nios2/kernel/misaligned.c +++ b/arch/nios2/kernel/misaligned.c @@ -32,8 +32,6 @@ #define INST_STW 0x15 #define INST_LDW 0x17 -static unsigned long ma_user, ma_kern, ma_skipped, ma_half, ma_word; - static unsigned int ma_usermode; #define UM_WARN 0x01 #define UM_FIXUP 0x02 @@ -53,7 +51,6 @@ static int reg_offsets[32]; static inline u32 get_reg_val(struct pt_regs *fp, int reg) { u8 *p = ((u8 *)fp) + reg_offsets[reg]; - return *(u32 *)p; } @@ -71,14 +68,13 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause) u32 isn, addr, val; int in_kernel; u8 a, b, d0, d1, d2, d3; - u16 imm16; + s16 imm16; unsigned int fault; /* back up one instruction */ fp->ea -= 4; if (fixup_exception(fp)) { - ma_skipped++; return; } @@ -103,18 +99,11 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause) fault |= __get_user(d1, (u8 *)(addr+1)); val = (d1 << 8) | d0; put_reg_val(fp, b, val); - ma_half++; break; case INST_STH: val = get_reg_val(fp, b); d1 = val >> 8; d0 = val >> 0; - - pr_debug("sth: ra=%d (%08x) rb=%d (%08x), imm16 %04x addr %08x val %08x\n", - a, get_reg_val(fp, a), - b, get_reg_val(fp, b), - imm16, addr, val); - if (in_kernel) { *(u8 *)(addr+0) = d0; *(u8 *)(addr+1) = d1; @@ -122,14 +111,12 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause) fault |= __put_user(d0, (u8 *)(addr+0)); fault |= __put_user(d1, (u8 *)(addr+1)); } - ma_half++; break; case INST_LDH: fault |= __get_user(d0, (u8 *)(addr+0)); fault |= __get_user(d1, (u8 *)(addr+1)); val = (short)((d1 << 8) | d0); put_reg_val(fp, b, val); - ma_half++; break; case INST_STW: val = get_reg_val(fp, b); @@ -148,7 +135,6 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause) fault |= __put_user(d2, (u8 *)(addr+2)); fault |= __put_user(d3, (u8 *)(addr+3)); } - ma_word++; break; case INST_LDW: fault |= __get_user(d0, (u8 *)(addr+0)); @@ -157,7 +143,6 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause) fault |= __get_user(d3, (u8 *)(addr+3)); val = (d3 << 24) | (d2 << 16) | (d1 << 8) | d0; put_reg_val(fp, b, val); - ma_word++; break; } } @@ -186,7 +171,6 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause) * note exception and skip bad instruction (return) */ if (in_kernel) { - ma_kern++; fp->ea += 4; if (ma_usermode & KM_WARN) { @@ -200,8 +184,6 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause) return; } - ma_user++; - /* * user mode - * possibly warn, |