/* Target-dependent code for the Renesas RL78 for GDB, the GNU debugger.
- Copyright (C) 2011-2013 Free Software Foundation, Inc.
+ Copyright (C) 2011-2015 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
RL78_BANK3_RP2_REGNUM,
RL78_BANK3_RP3_REGNUM,
+ /* These are the same as the above 16 registers, but have
+ a pointer type for use as base registers in expression
+ evaluation. These are not user visible registers. */
+ RL78_BANK0_RP0_PTR_REGNUM,
+ RL78_BANK0_RP1_PTR_REGNUM,
+ RL78_BANK0_RP2_PTR_REGNUM,
+ RL78_BANK0_RP3_PTR_REGNUM,
+
+ RL78_BANK1_RP0_PTR_REGNUM,
+ RL78_BANK1_RP1_PTR_REGNUM,
+ RL78_BANK1_RP2_PTR_REGNUM,
+ RL78_BANK1_RP3_PTR_REGNUM,
+
+ RL78_BANK2_RP0_PTR_REGNUM,
+ RL78_BANK2_RP1_PTR_REGNUM,
+ RL78_BANK2_RP2_PTR_REGNUM,
+ RL78_BANK2_RP3_PTR_REGNUM,
+
+ RL78_BANK3_RP0_PTR_REGNUM,
+ RL78_BANK3_RP1_PTR_REGNUM,
+ RL78_BANK3_RP2_PTR_REGNUM,
+ RL78_BANK3_RP3_PTR_REGNUM,
+
RL78_NUM_TOTAL_REGS,
RL78_NUM_PSEUDO_REGS = RL78_NUM_TOTAL_REGS - RL78_NUM_REGS
};
+#define RL78_SP_ADDR 0xffff8
+
/* Architecture specific data. */
struct gdbarch_tdep
*rl78_uint32,
*rl78_int32,
*rl78_data_pointer,
- *rl78_code_pointer;
+ *rl78_code_pointer,
+ *rl78_psw_type;
};
/* This structure holds the results of a prologue analysis. */
return tdep->rl78_code_pointer;
else if (reg_nr == RL78_RAW_PC_REGNUM)
return tdep->rl78_uint32;
+ else if (reg_nr == RL78_PSW_REGNUM)
+ return (tdep->rl78_psw_type);
else if (reg_nr <= RL78_MEM_REGNUM
|| (RL78_X_REGNUM <= reg_nr && reg_nr <= RL78_H_REGNUM)
|| (RL78_BANK0_R0_REGNUM <= reg_nr
&& reg_nr <= RL78_BANK3_R7_REGNUM))
return tdep->rl78_int8;
- else
+ else if (reg_nr == RL78_SP_REGNUM
+ || (RL78_BANK0_RP0_PTR_REGNUM <= reg_nr
+ && reg_nr <= RL78_BANK3_RP3_PTR_REGNUM))
return tdep->rl78_data_pointer;
+ else
+ return tdep->rl78_int16;
}
/* Implement the "register_name" gdbarch method. */
"bank3_rp0",
"bank3_rp1",
"bank3_rp2",
- "bank3_rp3"
+ "bank3_rp3",
+
+ /* The 16 register slots would be named
+ bank0_rp0_ptr_regnum ... bank3_rp3_ptr_regnum, but we don't
+ want these to be user visible registers. */
+ "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", ""
+ };
+
+ return reg_names[regnr];
+}
+
+/* Implement the "register_name" gdbarch method for the g10 variant. */
+
+static const char *
+rl78_g10_register_name (struct gdbarch *gdbarch, int regnr)
+{
+ static const char *const reg_names[] =
+ {
+ "", /* bank0_r0 */
+ "", /* bank0_r1 */
+ "", /* bank0_r2 */
+ "", /* bank0_r3 */
+ "", /* bank0_r4 */
+ "", /* bank0_r5 */
+ "", /* bank0_r6 */
+ "", /* bank0_r7 */
+
+ "", /* bank1_r0 */
+ "", /* bank1_r1 */
+ "", /* bank1_r2 */
+ "", /* bank1_r3 */
+ "", /* bank1_r4 */
+ "", /* bank1_r5 */
+ "", /* bank1_r6 */
+ "", /* bank1_r7 */
+
+ "", /* bank2_r0 */
+ "", /* bank2_r1 */
+ "", /* bank2_r2 */
+ "", /* bank2_r3 */
+ "", /* bank2_r4 */
+ "", /* bank2_r5 */
+ "", /* bank2_r6 */
+ "", /* bank2_r7 */
+
+ "", /* bank3_r0 */
+ "", /* bank3_r1 */
+ "", /* bank3_r2 */
+ "", /* bank3_r3 */
+ "", /* bank3_r4 */
+ "", /* bank3_r5 */
+ "", /* bank3_r6 */
+ "", /* bank3_r7 */
+
+ "psw",
+ "es",
+ "cs",
+ "",
+
+ "", /* spl */
+ "", /* sph */
+ "pmc",
+ "mem",
+
+ "pc",
+ "sp",
+
+ "x",
+ "a",
+ "c",
+ "b",
+ "e",
+ "d",
+ "l",
+ "h",
+
+ "ax",
+ "bc",
+ "de",
+ "hl",
+
+ "bank0_r0",
+ "bank0_r1",
+ "bank0_r2",
+ "bank0_r3",
+ "bank0_r4",
+ "bank0_r5",
+ "bank0_r6",
+ "bank0_r7",
+
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+
+ "bank0_rp0",
+ "bank0_rp1",
+ "bank0_rp2",
+ "bank0_rp3",
+
+ "",
+ "",
+ "",
+ "",
+
+ "",
+ "",
+ "",
+ "",
+
+ "",
+ "",
+ "",
+ "",
+
+ /* The 16 register slots would be named
+ bank0_rp0_ptr_regnum ... bank3_rp3_ptr_regnum, but we don't
+ want these to be user visible registers. */
+ "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", ""
};
return reg_names[regnr];
int raw_regnum = 2 * (reg - RL78_BANK0_RP0_REGNUM)
+ RL78_RAW_BANK0_R0_REGNUM;
+ status = regcache_raw_read (regcache, raw_regnum, buffer);
+ if (status == REG_VALID)
+ status = regcache_raw_read (regcache, raw_regnum + 1, buffer + 1);
+ }
+ else if (RL78_BANK0_RP0_PTR_REGNUM <= reg && reg <= RL78_BANK3_RP3_PTR_REGNUM)
+ {
+ int raw_regnum = 2 * (reg - RL78_BANK0_RP0_PTR_REGNUM)
+ + RL78_RAW_BANK0_R0_REGNUM;
+
status = regcache_raw_read (regcache, raw_regnum, buffer);
if (status == REG_VALID)
status = regcache_raw_read (regcache, raw_regnum + 1, buffer + 1);
int raw_regnum = 2 * (reg - RL78_BANK0_RP0_REGNUM)
+ RL78_RAW_BANK0_R0_REGNUM;
+ regcache_raw_write (regcache, raw_regnum, buffer);
+ regcache_raw_write (regcache, raw_regnum + 1, buffer + 1);
+ }
+ else if (RL78_BANK0_RP0_PTR_REGNUM <= reg && reg <= RL78_BANK3_RP3_PTR_REGNUM)
+ {
+ int raw_regnum = 2 * (reg - RL78_BANK0_RP0_PTR_REGNUM)
+ + RL78_RAW_BANK0_R0_REGNUM;
+
regcache_raw_write (regcache, raw_regnum, buffer);
regcache_raw_write (regcache, raw_regnum + 1, buffer + 1);
}
CORE_ADDR pc;
};
+static int
+opc_reg_to_gdb_regnum (int opcreg)
+{
+ switch (opcreg)
+ {
+ case RL78_Reg_X:
+ return RL78_X_REGNUM;
+ case RL78_Reg_A:
+ return RL78_A_REGNUM;
+ case RL78_Reg_C:
+ return RL78_C_REGNUM;
+ case RL78_Reg_B:
+ return RL78_B_REGNUM;
+ case RL78_Reg_E:
+ return RL78_E_REGNUM;
+ case RL78_Reg_D:
+ return RL78_D_REGNUM;
+ case RL78_Reg_L:
+ return RL78_L_REGNUM;
+ case RL78_Reg_H:
+ return RL78_H_REGNUM;
+ case RL78_Reg_AX:
+ return RL78_AX_REGNUM;
+ case RL78_Reg_BC:
+ return RL78_BC_REGNUM;
+ case RL78_Reg_DE:
+ return RL78_DE_REGNUM;
+ case RL78_Reg_HL:
+ return RL78_HL_REGNUM;
+ case RL78_Reg_SP:
+ return RL78_SP_REGNUM;
+ case RL78_Reg_PSW:
+ return RL78_PSW_REGNUM;
+ case RL78_Reg_CS:
+ return RL78_CS_REGNUM;
+ case RL78_Reg_ES:
+ return RL78_ES_REGNUM;
+ case RL78_Reg_PMC:
+ return RL78_PMC_REGNUM;
+ case RL78_Reg_MEM:
+ return RL78_MEM_REGNUM;
+ default:
+ internal_error (__FILE__, __LINE__,
+ _("Undefined mapping for opc reg %d"),
+ opcreg);
+ }
+
+ /* Not reached. */
+ return 0;
+}
+
/* Fetch a byte on behalf of the opcode decoder. HANDLE contains
the memory address of the next byte to fetch. If successful,
the address in the handle is updated and the byte fetched is
static int
rl78_get_opcode_byte (void *handle)
{
- struct rl78_get_opcode_byte_handle *opcdata = handle;
+ struct rl78_get_opcode_byte_handle *opcdata
+ = (struct rl78_get_opcode_byte_handle *) handle;
int status;
gdb_byte byte;
opcode_handle.pc = pc;
bytes_read = rl78_decode_opcode (pc, &opc, rl78_get_opcode_byte,
- &opcode_handle);
+ &opcode_handle, RL78_ISA_DEFAULT);
next_pc = pc + bytes_read;
if (opc.id == RLO_sel)
-addend);
after_last_frame_setup_insn = next_pc;
}
+ else if (opc.id == RLO_mov
+ && opc.size == RL78_Word
+ && opc.op[0].type == RL78_Operand_Register
+ && opc.op[1].type == RL78_Operand_Indirect
+ && opc.op[1].addend == RL78_SP_ADDR)
+ {
+ reg[opc_reg_to_gdb_regnum (opc.op[0].reg)]
+ = reg[RL78_SP_REGNUM];
+ }
+ else if (opc.id == RLO_sub
+ && opc.size == RL78_Word
+ && opc.op[0].type == RL78_Operand_Register
+ && opc.op[1].type == RL78_Operand_Immediate)
+ {
+ int addend = opc.op[1].addend;
+ int regnum = opc_reg_to_gdb_regnum (opc.op[0].reg);
+
+ reg[regnum] = pv_add_constant (reg[regnum], -addend);
+ }
+ else if (opc.id == RLO_mov
+ && opc.size == RL78_Word
+ && opc.op[0].type == RL78_Operand_Indirect
+ && opc.op[0].addend == RL78_SP_ADDR
+ && opc.op[1].type == RL78_Operand_Register)
+ {
+ reg[RL78_SP_REGNUM]
+ = reg[opc_reg_to_gdb_regnum (opc.op[1].reg)];
+ after_last_frame_setup_insn = next_pc;
+ }
else
{
/* Terminate the prologue scan. */
if (!func_start)
stop_addr = func_start;
- rl78_analyze_prologue (func_start, stop_addr, *this_prologue_cache);
+ rl78_analyze_prologue (func_start, stop_addr,
+ (struct rl78_prologue *) *this_prologue_cache);
}
- return *this_prologue_cache;
+ return (struct rl78_prologue *) *this_prologue_cache;
}
/* Given a frame and a prologue cache, return this frame's base. */
if (0 <= reg && reg <= 31)
{
if ((reg & 1) == 0)
- /* Map even registers to their 16-bit counterparts. This
- is usually what is required from the DWARF info. */
- return (reg >> 1) + RL78_BANK0_RP0_REGNUM;
+ /* Map even registers to their 16-bit counterparts which have a
+ pointer type. This is usually what is required from the DWARF
+ info. */
+ return (reg >> 1) + RL78_BANK0_RP0_PTR_REGNUM;
else
return reg;
}
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
ULONGEST valtype_len = TYPE_LENGTH (valtype);
+ int is_g10 = gdbarch_tdep (gdbarch)->elf_flags & E_FLAG_RL78_G10;
if (valtype_len > 8)
return RETURN_VALUE_STRUCT_CONVENTION;
{
ULONGEST u;
int argreg = RL78_RAW_BANK1_R0_REGNUM;
+ CORE_ADDR g10_raddr = 0xffec8;
int offset = 0;
while (valtype_len > 0)
{
- regcache_cooked_read_unsigned (regcache, argreg, &u);
+ if (is_g10)
+ u = read_memory_integer (g10_raddr, 1,
+ gdbarch_byte_order (gdbarch));
+ else
+ regcache_cooked_read_unsigned (regcache, argreg, &u);
store_unsigned_integer (readbuf + offset, 1, byte_order, u);
valtype_len -= 1;
offset += 1;
argreg++;
+ g10_raddr++;
}
}
{
ULONGEST u;
int argreg = RL78_RAW_BANK1_R0_REGNUM;
+ CORE_ADDR g10_raddr = 0xffec8;
int offset = 0;
while (valtype_len > 0)
{
u = extract_unsigned_integer (writebuf + offset, 1, byte_order);
- regcache_cooked_write_unsigned (regcache, argreg, u);
+ if (is_g10) {
+ gdb_byte b = u & 0xff;
+ write_memory (g10_raddr, &b, 1);
+ }
+ else
+ regcache_cooked_write_unsigned (regcache, argreg, u);
valtype_len -= 1;
offset += 1;
argreg++;
+ g10_raddr++;
}
}
/* None found, create a new architecture from the information
provided. */
- tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep));
+ tdep = XNEW (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
tdep->elf_flags = elf_flags;
TYPE_TARGET_TYPE (tdep->rl78_code_pointer) = tdep->rl78_void;
TYPE_UNSIGNED (tdep->rl78_code_pointer) = 1;
+ tdep->rl78_psw_type = arch_flags_type (gdbarch, "builtin_type_rl78_psw", 1);
+ append_flags_type_flag (tdep->rl78_psw_type, 0, "CY");
+ append_flags_type_flag (tdep->rl78_psw_type, 1, "ISP0");
+ append_flags_type_flag (tdep->rl78_psw_type, 2, "ISP1");
+ append_flags_type_flag (tdep->rl78_psw_type, 3, "RBS0");
+ append_flags_type_flag (tdep->rl78_psw_type, 4, "AC");
+ append_flags_type_flag (tdep->rl78_psw_type, 5, "RBS1");
+ append_flags_type_flag (tdep->rl78_psw_type, 6, "Z");
+ append_flags_type_flag (tdep->rl78_psw_type, 7, "IE");
+
/* Registers. */
set_gdbarch_num_regs (gdbarch, RL78_NUM_REGS);
set_gdbarch_num_pseudo_regs (gdbarch, RL78_NUM_PSEUDO_REGS);
- set_gdbarch_register_name (gdbarch, rl78_register_name);
+ if (tdep->elf_flags & E_FLAG_RL78_G10)
+ set_gdbarch_register_name (gdbarch, rl78_g10_register_name);
+ else
+ set_gdbarch_register_name (gdbarch, rl78_register_name);
set_gdbarch_register_type (gdbarch, rl78_register_type);
set_gdbarch_pc_regnum (gdbarch, RL78_PC_REGNUM);
set_gdbarch_sp_regnum (gdbarch, RL78_SP_REGNUM);
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