forked from Minki/linux
sh: Add a simple code dumper for SUPERH32 show_regs().
This implements a simple show_code() that is in turn plugged in to show_regs() to provide minimal code dumping at the end of the trace. Built on top of a simple instruction disassembler derived from the binutils opcode table. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
parent
edfd6da040
commit
9cfc9a9b6f
@ -175,6 +175,7 @@ static __inline__ void enable_fpu(void)
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void show_trace(struct task_struct *tsk, unsigned long *sp,
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struct pt_regs *regs);
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void show_code(struct pt_regs *regs);
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extern unsigned long get_wchan(struct task_struct *p);
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#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
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@ -9,9 +9,10 @@ ifdef CONFIG_FUNCTION_TRACER
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CFLAGS_REMOVE_ftrace.o = -pg
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endif
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obj-y := debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
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ptrace_32.o setup.o signal_32.o sys_sh.o sys_sh32.o \
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syscalls_32.o time_32.o topology.o traps.o traps_32.o
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obj-y := debugtraps.o disassemble.o io.o io_generic.o irq.o \
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machvec.o process_32.o ptrace_32.o setup.o signal_32.o \
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sys_sh.o sys_sh32.o syscalls_32.o time_32.o topology.o \
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traps.o traps_32.o
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obj-y += cpu/ timers/
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obj-$(CONFIG_VSYSCALL) += vsyscall/
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573
arch/sh/kernel/disassemble.c
Normal file
573
arch/sh/kernel/disassemble.c
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@ -0,0 +1,573 @@
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/*
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* Disassemble SuperH instructions.
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*
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* Copyright (C) 1999 kaz Kojima
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* Copyright (C) 2008 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/uaccess.h>
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/*
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* Format of an instruction in memory.
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*/
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typedef enum {
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HEX_0, HEX_1, HEX_2, HEX_3, HEX_4, HEX_5, HEX_6, HEX_7,
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HEX_8, HEX_9, HEX_A, HEX_B, HEX_C, HEX_D, HEX_E, HEX_F,
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REG_N, REG_M, REG_NM, REG_B,
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BRANCH_12, BRANCH_8,
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DISP_8, DISP_4,
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IMM_4, IMM_4BY2, IMM_4BY4, PCRELIMM_8BY2, PCRELIMM_8BY4,
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IMM_8, IMM_8BY2, IMM_8BY4,
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} sh_nibble_type;
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typedef enum {
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A_END, A_BDISP12, A_BDISP8,
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A_DEC_M, A_DEC_N,
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A_DISP_GBR, A_DISP_PC, A_DISP_REG_M, A_DISP_REG_N,
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A_GBR,
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A_IMM,
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A_INC_M, A_INC_N,
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A_IND_M, A_IND_N, A_IND_R0_REG_M, A_IND_R0_REG_N,
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A_MACH, A_MACL,
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A_PR, A_R0, A_R0_GBR, A_REG_M, A_REG_N, A_REG_B,
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A_SR, A_VBR, A_SSR, A_SPC, A_SGR, A_DBR,
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F_REG_N, F_REG_M, D_REG_N, D_REG_M,
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X_REG_N, /* Only used for argument parsing */
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X_REG_M, /* Only used for argument parsing */
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DX_REG_N, DX_REG_M, V_REG_N, V_REG_M,
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FD_REG_N,
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XMTRX_M4,
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F_FR0,
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FPUL_N, FPUL_M, FPSCR_N, FPSCR_M,
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} sh_arg_type;
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static struct sh_opcode_info {
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char *name;
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sh_arg_type arg[7];
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sh_nibble_type nibbles[4];
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} sh_table[] = {
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{"add",{A_IMM,A_REG_N},{HEX_7,REG_N,IMM_8}},
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{"add",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_C}},
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{"addc",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_E}},
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{"addv",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_F}},
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{"and",{A_IMM,A_R0},{HEX_C,HEX_9,IMM_8}},
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{"and",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_9}},
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{"and.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_D,IMM_8}},
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{"bra",{A_BDISP12},{HEX_A,BRANCH_12}},
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{"bsr",{A_BDISP12},{HEX_B,BRANCH_12}},
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{"bt",{A_BDISP8},{HEX_8,HEX_9,BRANCH_8}},
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{"bf",{A_BDISP8},{HEX_8,HEX_B,BRANCH_8}},
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{"bt.s",{A_BDISP8},{HEX_8,HEX_D,BRANCH_8}},
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{"bt/s",{A_BDISP8},{HEX_8,HEX_D,BRANCH_8}},
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{"bf.s",{A_BDISP8},{HEX_8,HEX_F,BRANCH_8}},
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{"bf/s",{A_BDISP8},{HEX_8,HEX_F,BRANCH_8}},
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{"clrmac",{0},{HEX_0,HEX_0,HEX_2,HEX_8}},
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{"clrs",{0},{HEX_0,HEX_0,HEX_4,HEX_8}},
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{"clrt",{0},{HEX_0,HEX_0,HEX_0,HEX_8}},
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{"cmp/eq",{A_IMM,A_R0},{HEX_8,HEX_8,IMM_8}},
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{"cmp/eq",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_0}},
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{"cmp/ge",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_3}},
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{"cmp/gt",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_7}},
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{"cmp/hi",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_6}},
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{"cmp/hs",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_2}},
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{"cmp/pl",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_5}},
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{"cmp/pz",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_1}},
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{"cmp/str",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_C}},
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{"div0s",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_7}},
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{"div0u",{0},{HEX_0,HEX_0,HEX_1,HEX_9}},
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{"div1",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_4}},
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{"exts.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_E}},
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{"exts.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_F}},
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{"extu.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_C}},
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{"extu.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_D}},
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{"jmp",{A_IND_N},{HEX_4,REG_N,HEX_2,HEX_B}},
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{"jsr",{A_IND_N},{HEX_4,REG_N,HEX_0,HEX_B}},
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{"ldc",{A_REG_N,A_SR},{HEX_4,REG_N,HEX_0,HEX_E}},
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{"ldc",{A_REG_N,A_GBR},{HEX_4,REG_N,HEX_1,HEX_E}},
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{"ldc",{A_REG_N,A_VBR},{HEX_4,REG_N,HEX_2,HEX_E}},
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{"ldc",{A_REG_N,A_SSR},{HEX_4,REG_N,HEX_3,HEX_E}},
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{"ldc",{A_REG_N,A_SPC},{HEX_4,REG_N,HEX_4,HEX_E}},
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{"ldc",{A_REG_N,A_DBR},{HEX_4,REG_N,HEX_7,HEX_E}},
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{"ldc",{A_REG_N,A_REG_B},{HEX_4,REG_N,REG_B,HEX_E}},
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{"ldc.l",{A_INC_N,A_SR},{HEX_4,REG_N,HEX_0,HEX_7}},
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{"ldc.l",{A_INC_N,A_GBR},{HEX_4,REG_N,HEX_1,HEX_7}},
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{"ldc.l",{A_INC_N,A_VBR},{HEX_4,REG_N,HEX_2,HEX_7}},
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{"ldc.l",{A_INC_N,A_SSR},{HEX_4,REG_N,HEX_3,HEX_7}},
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{"ldc.l",{A_INC_N,A_SPC},{HEX_4,REG_N,HEX_4,HEX_7}},
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{"ldc.l",{A_INC_N,A_DBR},{HEX_4,REG_N,HEX_7,HEX_7}},
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{"ldc.l",{A_INC_N,A_REG_B},{HEX_4,REG_N,REG_B,HEX_7}},
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{"lds",{A_REG_N,A_MACH},{HEX_4,REG_N,HEX_0,HEX_A}},
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{"lds",{A_REG_N,A_MACL},{HEX_4,REG_N,HEX_1,HEX_A}},
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{"lds",{A_REG_N,A_PR},{HEX_4,REG_N,HEX_2,HEX_A}},
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{"lds",{A_REG_M,FPUL_N},{HEX_4,REG_M,HEX_5,HEX_A}},
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{"lds",{A_REG_M,FPSCR_N},{HEX_4,REG_M,HEX_6,HEX_A}},
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{"lds.l",{A_INC_N,A_MACH},{HEX_4,REG_N,HEX_0,HEX_6}},
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{"lds.l",{A_INC_N,A_MACL},{HEX_4,REG_N,HEX_1,HEX_6}},
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{"lds.l",{A_INC_N,A_PR},{HEX_4,REG_N,HEX_2,HEX_6}},
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{"lds.l",{A_INC_M,FPUL_N},{HEX_4,REG_M,HEX_5,HEX_6}},
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{"lds.l",{A_INC_M,FPSCR_N},{HEX_4,REG_M,HEX_6,HEX_6}},
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{"ldtlb",{0},{HEX_0,HEX_0,HEX_3,HEX_8}},
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{"mac.w",{A_INC_M,A_INC_N},{HEX_4,REG_N,REG_M,HEX_F}},
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{"mov",{A_IMM,A_REG_N},{HEX_E,REG_N,IMM_8}},
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{"mov",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_3}},
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{"mov.b",{ A_REG_M,A_IND_R0_REG_N},{HEX_0,REG_N,REG_M,HEX_4}},
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{"mov.b",{ A_REG_M,A_DEC_N},{HEX_2,REG_N,REG_M,HEX_4}},
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{"mov.b",{ A_REG_M,A_IND_N},{HEX_2,REG_N,REG_M,HEX_0}},
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{"mov.b",{A_DISP_REG_M,A_R0},{HEX_8,HEX_4,REG_M,IMM_4}},
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{"mov.b",{A_DISP_GBR,A_R0},{HEX_C,HEX_4,IMM_8}},
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{"mov.b",{A_IND_R0_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_C}},
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{"mov.b",{A_INC_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_4}},
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{"mov.b",{A_IND_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_0}},
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{"mov.b",{A_R0,A_DISP_REG_M},{HEX_8,HEX_0,REG_M,IMM_4}},
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{"mov.b",{A_R0,A_DISP_GBR},{HEX_C,HEX_0,IMM_8}},
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{"mov.l",{ A_REG_M,A_DISP_REG_N},{HEX_1,REG_N,REG_M,IMM_4BY4}},
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{"mov.l",{ A_REG_M,A_IND_R0_REG_N},{HEX_0,REG_N,REG_M,HEX_6}},
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{"mov.l",{ A_REG_M,A_DEC_N},{HEX_2,REG_N,REG_M,HEX_6}},
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{"mov.l",{ A_REG_M,A_IND_N},{HEX_2,REG_N,REG_M,HEX_2}},
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{"mov.l",{A_DISP_REG_M,A_REG_N},{HEX_5,REG_N,REG_M,IMM_4BY4}},
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{"mov.l",{A_DISP_GBR,A_R0},{HEX_C,HEX_6,IMM_8BY4}},
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{"mov.l",{A_DISP_PC,A_REG_N},{HEX_D,REG_N,PCRELIMM_8BY4}},
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{"mov.l",{A_IND_R0_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_E}},
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{"mov.l",{A_INC_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_6}},
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{"mov.l",{A_IND_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_2}},
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{"mov.l",{A_R0,A_DISP_GBR},{HEX_C,HEX_2,IMM_8BY4}},
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{"mov.w",{ A_REG_M,A_IND_R0_REG_N},{HEX_0,REG_N,REG_M,HEX_5}},
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{"mov.w",{ A_REG_M,A_DEC_N},{HEX_2,REG_N,REG_M,HEX_5}},
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{"mov.w",{ A_REG_M,A_IND_N},{HEX_2,REG_N,REG_M,HEX_1}},
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{"mov.w",{A_DISP_REG_M,A_R0},{HEX_8,HEX_5,REG_M,IMM_4BY2}},
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{"mov.w",{A_DISP_GBR,A_R0},{HEX_C,HEX_5,IMM_8BY2}},
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{"mov.w",{A_DISP_PC,A_REG_N},{HEX_9,REG_N,PCRELIMM_8BY2}},
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{"mov.w",{A_IND_R0_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_D}},
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{"mov.w",{A_INC_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_5}},
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{"mov.w",{A_IND_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_1}},
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{"mov.w",{A_R0,A_DISP_REG_M},{HEX_8,HEX_1,REG_M,IMM_4BY2}},
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{"mov.w",{A_R0,A_DISP_GBR},{HEX_C,HEX_1,IMM_8BY2}},
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{"mova",{A_DISP_PC,A_R0},{HEX_C,HEX_7,PCRELIMM_8BY4}},
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{"movca.l",{A_R0,A_IND_N},{HEX_0,REG_N,HEX_C,HEX_3}},
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{"movt",{A_REG_N},{HEX_0,REG_N,HEX_2,HEX_9}},
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{"muls",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_F}},
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{"mul.l",{ A_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_7}},
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{"mulu",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_E}},
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{"neg",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_B}},
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{"negc",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_A}},
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{"nop",{0},{HEX_0,HEX_0,HEX_0,HEX_9}},
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{"not",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_7}},
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{"ocbi",{A_IND_N},{HEX_0,REG_N,HEX_9,HEX_3}},
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{"ocbp",{A_IND_N},{HEX_0,REG_N,HEX_A,HEX_3}},
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{"ocbwb",{A_IND_N},{HEX_0,REG_N,HEX_B,HEX_3}},
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{"or",{A_IMM,A_R0},{HEX_C,HEX_B,IMM_8}},
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{"or",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_B}},
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{"or.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_F,IMM_8}},
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{"pref",{A_IND_N},{HEX_0,REG_N,HEX_8,HEX_3}},
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{"rotcl",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_4}},
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{"rotcr",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_5}},
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{"rotl",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_4}},
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{"rotr",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_5}},
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{"rte",{0},{HEX_0,HEX_0,HEX_2,HEX_B}},
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{"rts",{0},{HEX_0,HEX_0,HEX_0,HEX_B}},
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{"sets",{0},{HEX_0,HEX_0,HEX_5,HEX_8}},
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{"sett",{0},{HEX_0,HEX_0,HEX_1,HEX_8}},
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{"shad",{ A_REG_M,A_REG_N},{HEX_4,REG_N,REG_M,HEX_C}},
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{"shld",{ A_REG_M,A_REG_N},{HEX_4,REG_N,REG_M,HEX_D}},
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{"shal",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_0}},
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{"shar",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_1}},
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{"shll",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_0}},
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{"shll16",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_8}},
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{"shll2",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_8}},
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{"shll8",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_8}},
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{"shlr",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_1}},
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{"shlr16",{A_REG_N},{HEX_4,REG_N,HEX_2,HEX_9}},
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{"shlr2",{A_REG_N},{HEX_4,REG_N,HEX_0,HEX_9}},
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{"shlr8",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_9}},
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{"sleep",{0},{HEX_0,HEX_0,HEX_1,HEX_B}},
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{"stc",{A_SR,A_REG_N},{HEX_0,REG_N,HEX_0,HEX_2}},
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{"stc",{A_GBR,A_REG_N},{HEX_0,REG_N,HEX_1,HEX_2}},
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{"stc",{A_VBR,A_REG_N},{HEX_0,REG_N,HEX_2,HEX_2}},
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{"stc",{A_SSR,A_REG_N},{HEX_0,REG_N,HEX_3,HEX_2}},
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{"stc",{A_SPC,A_REG_N},{HEX_0,REG_N,HEX_4,HEX_2}},
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{"stc",{A_SGR,A_REG_N},{HEX_0,REG_N,HEX_6,HEX_2}},
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{"stc",{A_DBR,A_REG_N},{HEX_0,REG_N,HEX_7,HEX_2}},
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{"stc",{A_REG_B,A_REG_N},{HEX_0,REG_N,REG_B,HEX_2}},
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{"stc.l",{A_SR,A_DEC_N},{HEX_4,REG_N,HEX_0,HEX_3}},
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{"stc.l",{A_GBR,A_DEC_N},{HEX_4,REG_N,HEX_1,HEX_3}},
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{"stc.l",{A_VBR,A_DEC_N},{HEX_4,REG_N,HEX_2,HEX_3}},
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{"stc.l",{A_SSR,A_DEC_N},{HEX_4,REG_N,HEX_3,HEX_3}},
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{"stc.l",{A_SPC,A_DEC_N},{HEX_4,REG_N,HEX_4,HEX_3}},
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{"stc.l",{A_SGR,A_DEC_N},{HEX_4,REG_N,HEX_6,HEX_3}},
|
||||
{"stc.l",{A_DBR,A_DEC_N},{HEX_4,REG_N,HEX_7,HEX_3}},
|
||||
{"stc.l",{A_REG_B,A_DEC_N},{HEX_4,REG_N,REG_B,HEX_3}},
|
||||
{"sts",{A_MACH,A_REG_N},{HEX_0,REG_N,HEX_0,HEX_A}},
|
||||
{"sts",{A_MACL,A_REG_N},{HEX_0,REG_N,HEX_1,HEX_A}},
|
||||
{"sts",{A_PR,A_REG_N},{HEX_0,REG_N,HEX_2,HEX_A}},
|
||||
{"sts",{FPUL_M,A_REG_N},{HEX_0,REG_N,HEX_5,HEX_A}},
|
||||
{"sts",{FPSCR_M,A_REG_N},{HEX_0,REG_N,HEX_6,HEX_A}},
|
||||
{"sts.l",{A_MACH,A_DEC_N},{HEX_4,REG_N,HEX_0,HEX_2}},
|
||||
{"sts.l",{A_MACL,A_DEC_N},{HEX_4,REG_N,HEX_1,HEX_2}},
|
||||
{"sts.l",{A_PR,A_DEC_N},{HEX_4,REG_N,HEX_2,HEX_2}},
|
||||
{"sts.l",{FPUL_M,A_DEC_N},{HEX_4,REG_N,HEX_5,HEX_2}},
|
||||
{"sts.l",{FPSCR_M,A_DEC_N},{HEX_4,REG_N,HEX_6,HEX_2}},
|
||||
{"sub",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_8}},
|
||||
{"subc",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_A}},
|
||||
{"subv",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_B}},
|
||||
{"swap.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_8}},
|
||||
{"swap.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_9}},
|
||||
{"tas.b",{A_IND_N},{HEX_4,REG_N,HEX_1,HEX_B}},
|
||||
{"trapa",{A_IMM},{HEX_C,HEX_3,IMM_8}},
|
||||
{"tst",{A_IMM,A_R0},{HEX_C,HEX_8,IMM_8}},
|
||||
{"tst",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_8}},
|
||||
{"tst.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_C,IMM_8}},
|
||||
{"xor",{A_IMM,A_R0},{HEX_C,HEX_A,IMM_8}},
|
||||
{"xor",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_A}},
|
||||
{"xor.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_E,IMM_8}},
|
||||
{"xtrct",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_D}},
|
||||
{"mul.l",{ A_REG_M,A_REG_N},{HEX_0,REG_N,REG_M,HEX_7}},
|
||||
{"dt",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_0}},
|
||||
{"dmuls.l",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_D}},
|
||||
{"dmulu.l",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_5}},
|
||||
{"mac.l",{A_INC_M,A_INC_N},{HEX_0,REG_N,REG_M,HEX_F}},
|
||||
{"braf",{A_REG_N},{HEX_0,REG_N,HEX_2,HEX_3}},
|
||||
{"bsrf",{A_REG_N},{HEX_0,REG_N,HEX_0,HEX_3}},
|
||||
{"fabs",{FD_REG_N},{HEX_F,REG_N,HEX_5,HEX_D}},
|
||||
{"fadd",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_0}},
|
||||
{"fadd",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_0}},
|
||||
{"fcmp/eq",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_4}},
|
||||
{"fcmp/eq",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_4}},
|
||||
{"fcmp/gt",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_5}},
|
||||
{"fcmp/gt",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_5}},
|
||||
{"fcnvds",{D_REG_N,FPUL_M},{HEX_F,REG_N,HEX_B,HEX_D}},
|
||||
{"fcnvsd",{FPUL_M,D_REG_N},{HEX_F,REG_N,HEX_A,HEX_D}},
|
||||
{"fdiv",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_3}},
|
||||
{"fdiv",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_3}},
|
||||
{"fipr",{V_REG_M,V_REG_N},{HEX_F,REG_NM,HEX_E,HEX_D}},
|
||||
{"fldi0",{F_REG_N},{HEX_F,REG_N,HEX_8,HEX_D}},
|
||||
{"fldi1",{F_REG_N},{HEX_F,REG_N,HEX_9,HEX_D}},
|
||||
{"flds",{F_REG_N,FPUL_M},{HEX_F,REG_N,HEX_1,HEX_D}},
|
||||
{"float",{FPUL_M,FD_REG_N},{HEX_F,REG_N,HEX_2,HEX_D}},
|
||||
{"fmac",{F_FR0,F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_E}},
|
||||
{"fmov",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_C}},
|
||||
{"fmov",{DX_REG_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_C}},
|
||||
{"fmov",{A_IND_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_8}},
|
||||
{"fmov",{A_IND_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_8}},
|
||||
{"fmov",{F_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}},
|
||||
{"fmov",{DX_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}},
|
||||
{"fmov",{A_INC_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_9}},
|
||||
{"fmov",{A_INC_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_9}},
|
||||
{"fmov",{F_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}},
|
||||
{"fmov",{DX_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}},
|
||||
{"fmov",{A_IND_R0_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_6}},
|
||||
{"fmov",{A_IND_R0_REG_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_6}},
|
||||
{"fmov",{F_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}},
|
||||
{"fmov",{DX_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}},
|
||||
{"fmov.d",{A_IND_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_8}},
|
||||
{"fmov.d",{DX_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}},
|
||||
{"fmov.d",{A_INC_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_9}},
|
||||
{"fmov.d",{DX_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}},
|
||||
{"fmov.d",{A_IND_R0_REG_M,DX_REG_N},{HEX_F,REG_N,REG_M,HEX_6}},
|
||||
{"fmov.d",{DX_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}},
|
||||
{"fmov.s",{A_IND_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_8}},
|
||||
{"fmov.s",{F_REG_M,A_IND_N},{HEX_F,REG_N,REG_M,HEX_A}},
|
||||
{"fmov.s",{A_INC_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_9}},
|
||||
{"fmov.s",{F_REG_M,A_DEC_N},{HEX_F,REG_N,REG_M,HEX_B}},
|
||||
{"fmov.s",{A_IND_R0_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_6}},
|
||||
{"fmov.s",{F_REG_M,A_IND_R0_REG_N},{HEX_F,REG_N,REG_M,HEX_7}},
|
||||
{"fmul",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_2}},
|
||||
{"fmul",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_2}},
|
||||
{"fneg",{FD_REG_N},{HEX_F,REG_N,HEX_4,HEX_D}},
|
||||
{"frchg",{0},{HEX_F,HEX_B,HEX_F,HEX_D}},
|
||||
{"fschg",{0},{HEX_F,HEX_3,HEX_F,HEX_D}},
|
||||
{"fsqrt",{FD_REG_N},{HEX_F,REG_N,HEX_6,HEX_D}},
|
||||
{"fsts",{FPUL_M,F_REG_N},{HEX_F,REG_N,HEX_0,HEX_D}},
|
||||
{"fsub",{F_REG_M,F_REG_N},{HEX_F,REG_N,REG_M,HEX_1}},
|
||||
{"fsub",{D_REG_M,D_REG_N},{HEX_F,REG_N,REG_M,HEX_1}},
|
||||
{"ftrc",{FD_REG_N,FPUL_M},{HEX_F,REG_N,HEX_3,HEX_D}},
|
||||
{"ftrv",{XMTRX_M4,V_REG_N},{HEX_F,REG_NM,HEX_F,HEX_D}},
|
||||
{ 0 },
|
||||
};
|
||||
|
||||
static void print_sh_insn(u32 memaddr, u16 insn)
|
||||
{
|
||||
int relmask = ~0;
|
||||
int nibs[4] = { (insn >> 12) & 0xf, (insn >> 8) & 0xf, (insn >> 4) & 0xf, insn & 0xf};
|
||||
int lastsp;
|
||||
struct sh_opcode_info *op = sh_table;
|
||||
|
||||
for (; op->name; op++) {
|
||||
int n;
|
||||
int imm = 0;
|
||||
int rn = 0;
|
||||
int rm = 0;
|
||||
int rb = 0;
|
||||
int disp_pc;
|
||||
int disp_pc_addr = 0;
|
||||
|
||||
for (n = 0; n < 4; n++) {
|
||||
int i = op->nibbles[n];
|
||||
|
||||
if (i < 16) {
|
||||
if (nibs[n] == i)
|
||||
continue;
|
||||
goto fail;
|
||||
}
|
||||
switch (i) {
|
||||
case BRANCH_8:
|
||||
imm = (nibs[2] << 4) | (nibs[3]);
|
||||
if (imm & 0x80)
|
||||
imm |= ~0xff;
|
||||
imm = ((char)imm) * 2 + 4 ;
|
||||
goto ok;
|
||||
case BRANCH_12:
|
||||
imm = ((nibs[1]) << 8) | (nibs[2] << 4) | (nibs[3]);
|
||||
if (imm & 0x800)
|
||||
imm |= ~0xfff;
|
||||
imm = imm * 2 + 4;
|
||||
goto ok;
|
||||
case IMM_4:
|
||||
imm = nibs[3];
|
||||
goto ok;
|
||||
case IMM_4BY2:
|
||||
imm = nibs[3] <<1;
|
||||
goto ok;
|
||||
case IMM_4BY4:
|
||||
imm = nibs[3] <<2;
|
||||
goto ok;
|
||||
case IMM_8:
|
||||
imm = (nibs[2] << 4) | nibs[3];
|
||||
goto ok;
|
||||
case PCRELIMM_8BY2:
|
||||
imm = ((nibs[2] << 4) | nibs[3]) <<1;
|
||||
relmask = ~1;
|
||||
goto ok;
|
||||
case PCRELIMM_8BY4:
|
||||
imm = ((nibs[2] << 4) | nibs[3]) <<2;
|
||||
relmask = ~3;
|
||||
goto ok;
|
||||
case IMM_8BY2:
|
||||
imm = ((nibs[2] << 4) | nibs[3]) <<1;
|
||||
goto ok;
|
||||
case IMM_8BY4:
|
||||
imm = ((nibs[2] << 4) | nibs[3]) <<2;
|
||||
goto ok;
|
||||
case DISP_8:
|
||||
imm = (nibs[2] << 4) | (nibs[3]);
|
||||
goto ok;
|
||||
case DISP_4:
|
||||
imm = nibs[3];
|
||||
goto ok;
|
||||
case REG_N:
|
||||
rn = nibs[n];
|
||||
break;
|
||||
case REG_M:
|
||||
rm = nibs[n];
|
||||
break;
|
||||
case REG_NM:
|
||||
rn = (nibs[n] & 0xc) >> 2;
|
||||
rm = (nibs[n] & 0x3);
|
||||
break;
|
||||
case REG_B:
|
||||
rb = nibs[n] & 0x07;
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
ok:
|
||||
printk("%-8s ", op->name);
|
||||
lastsp = (op->arg[0] == A_END);
|
||||
disp_pc = 0;
|
||||
for (n = 0; n < 6 && op->arg[n] != A_END; n++) {
|
||||
if (n && op->arg[1] != A_END)
|
||||
printk(", ");
|
||||
switch (op->arg[n]) {
|
||||
case A_IMM:
|
||||
printk("#%d", (char)(imm));
|
||||
break;
|
||||
case A_R0:
|
||||
printk("r0");
|
||||
break;
|
||||
case A_REG_N:
|
||||
printk("r%d", rn);
|
||||
break;
|
||||
case A_INC_N:
|
||||
printk("@r%d+", rn);
|
||||
break;
|
||||
case A_DEC_N:
|
||||
printk("@-r%d", rn);
|
||||
break;
|
||||
case A_IND_N:
|
||||
printk("@r%d", rn);
|
||||
break;
|
||||
case A_DISP_REG_N:
|
||||
printk("@(%d,r%d)", imm, rn);
|
||||
break;
|
||||
case A_REG_M:
|
||||
printk("r%d", rm);
|
||||
break;
|
||||
case A_INC_M:
|
||||
printk("@r%d+", rm);
|
||||
break;
|
||||
case A_DEC_M:
|
||||
printk("@-r%d", rm);
|
||||
break;
|
||||
case A_IND_M:
|
||||
printk("@r%d", rm);
|
||||
break;
|
||||
case A_DISP_REG_M:
|
||||
printk("@(%d,r%d)", imm, rm);
|
||||
break;
|
||||
case A_REG_B:
|
||||
printk("r%d_bank", rb);
|
||||
break;
|
||||
case A_DISP_PC:
|
||||
disp_pc = 1;
|
||||
disp_pc_addr = imm + 4 + (memaddr & relmask);
|
||||
printk("%08x <%pS>", disp_pc_addr,
|
||||
(void *)disp_pc_addr);
|
||||
break;
|
||||
case A_IND_R0_REG_N:
|
||||
printk("@(r0,r%d)", rn);
|
||||
break;
|
||||
case A_IND_R0_REG_M:
|
||||
printk("@(r0,r%d)", rm);
|
||||
break;
|
||||
case A_DISP_GBR:
|
||||
printk("@(%d,gbr)",imm);
|
||||
break;
|
||||
case A_R0_GBR:
|
||||
printk("@(r0,gbr)");
|
||||
break;
|
||||
case A_BDISP12:
|
||||
case A_BDISP8:
|
||||
printk("%08x", imm + memaddr);
|
||||
break;
|
||||
case A_SR:
|
||||
printk("sr");
|
||||
break;
|
||||
case A_GBR:
|
||||
printk("gbr");
|
||||
break;
|
||||
case A_VBR:
|
||||
printk("vbr");
|
||||
break;
|
||||
case A_SSR:
|
||||
printk("ssr");
|
||||
break;
|
||||
case A_SPC:
|
||||
printk("spc");
|
||||
break;
|
||||
case A_MACH:
|
||||
printk("mach");
|
||||
break;
|
||||
case A_MACL:
|
||||
printk("macl");
|
||||
break;
|
||||
case A_PR:
|
||||
printk("pr");
|
||||
break;
|
||||
case A_SGR:
|
||||
printk("sgr");
|
||||
break;
|
||||
case A_DBR:
|
||||
printk("dbr");
|
||||
break;
|
||||
case FD_REG_N:
|
||||
if (0)
|
||||
goto d_reg_n;
|
||||
case F_REG_N:
|
||||
printk("fr%d", rn);
|
||||
break;
|
||||
case F_REG_M:
|
||||
printk("fr%d", rm);
|
||||
break;
|
||||
case DX_REG_N:
|
||||
if (rn & 1) {
|
||||
printk("xd%d", rn & ~1);
|
||||
break;
|
||||
}
|
||||
d_reg_n:
|
||||
case D_REG_N:
|
||||
printk("dr%d", rn);
|
||||
break;
|
||||
case DX_REG_M:
|
||||
if (rm & 1) {
|
||||
printk("xd%d", rm & ~1);
|
||||
break;
|
||||
}
|
||||
case D_REG_M:
|
||||
printk("dr%d", rm);
|
||||
break;
|
||||
case FPSCR_M:
|
||||
case FPSCR_N:
|
||||
printk("fpscr");
|
||||
break;
|
||||
case FPUL_M:
|
||||
case FPUL_N:
|
||||
printk("fpul");
|
||||
break;
|
||||
case F_FR0:
|
||||
printk("fr0");
|
||||
break;
|
||||
case V_REG_N:
|
||||
printk("fv%d", rn*4);
|
||||
break;
|
||||
case V_REG_M:
|
||||
printk("fv%d", rm*4);
|
||||
break;
|
||||
case XMTRX_M4:
|
||||
printk("xmtrx");
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (disp_pc && strcmp(op->name, "mova") != 0) {
|
||||
u32 val;
|
||||
|
||||
if (relmask == ~1)
|
||||
__get_user(val, (u16 *)disp_pc_addr);
|
||||
else
|
||||
__get_user(val, (u32 *)disp_pc_addr);
|
||||
|
||||
printk(" ! %08x <%pS>", val, (void *)val);
|
||||
}
|
||||
|
||||
return;
|
||||
fail:
|
||||
;
|
||||
|
||||
}
|
||||
|
||||
printk(".word 0x%x%x%x%x", nibs[0], nibs[1], nibs[2], nibs[3]);
|
||||
}
|
||||
|
||||
void show_code(struct pt_regs *regs)
|
||||
{
|
||||
unsigned short *pc = (unsigned short *)regs->pc;
|
||||
long i;
|
||||
|
||||
if (regs->pc & 0x1)
|
||||
return;
|
||||
|
||||
printk("Code:\n");
|
||||
|
||||
for (i = -3 ; i < 6 ; i++) {
|
||||
unsigned short insn;
|
||||
|
||||
if (__get_user(insn, pc + i)) {
|
||||
printk(" (Bad address in pc)\n");
|
||||
break;
|
||||
}
|
||||
|
||||
printk("%s%08lx: ", (i ? " ": "->"), (unsigned long)(pc + i));
|
||||
print_sh_insn((unsigned long)(pc + i), insn);
|
||||
printk("\n");
|
||||
}
|
||||
|
||||
printk("\n");
|
||||
}
|
||||
@ -148,6 +148,7 @@ void show_regs(struct pt_regs * regs)
|
||||
regs->mach, regs->macl, regs->gbr, regs->pr);
|
||||
|
||||
show_trace(NULL, (unsigned long *)regs->regs[15], regs);
|
||||
show_code(regs);
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user