/* Target-dependent code for Moxie.
- Copyright (C) 2009-2016 Free Software Foundation, Inc.
+ Copyright (C) 2009-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "moxie-tdep.h"
#include <algorithm>
-/* Local functions. */
-
-extern void _initialize_moxie_tdep (void);
-
/* Use an invalid address value as 'not available' marker. */
enum { REG_UNAVAIL = (CORE_ADDR) -1 };
return sp & ~1;
}
-static unsigned char breakpoint[] = { 0x35, 0x00 };
+constexpr gdb_byte moxie_break_insn[] = { 0x35, 0x00 };
-GDBARCH_BREAKPOINT_MANIPULATION (moxie, breakpoint)
+typedef BP_MANIPULATION (moxie_break_insn) moxie_breakpoint;
/* Moxie register names. */
-char *moxie_register_names[] = {
+static const char *moxie_register_names[] = {
"$fp", "$sp", "$r0", "$r1", "$r2",
"$r3", "$r4", "$r5", "$r6", "$r7",
"$r8", "$r9", "$r10", "$r11", "$r12",
moxie_store_return_value (struct type *type, struct regcache *regcache,
const gdb_byte *valbuf)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR regval;
int len = TYPE_LENGTH (type);
sym = lookup_symbol (func_name, NULL, VAR_DOMAIN, NULL).symbol;
/* Don't use line number debug info for assembly source
files. */
- if (sym && SYMBOL_LANGUAGE (sym) != language_asm)
+ if (sym && sym->language () != language_asm)
{
sal = find_pc_line (func_addr, 0);
if (sal.end && sal.end < func_end)
};
/* Read an unsigned integer from the inferior, and adjust
- endianess. */
+ endianness. */
static ULONGEST
moxie_process_readu (CORE_ADDR addr, gdb_byte *buf,
int length, enum bfd_endian byte_order)
/* Insert a single step breakpoint. */
-static int
-moxie_software_single_step (struct frame_info *frame)
+static std::vector<CORE_ADDR>
+moxie_software_single_step (struct regcache *regcache)
{
- struct gdbarch *gdbarch = get_frame_arch (frame);
- struct address_space *aspace = get_frame_address_space (frame);
+ struct gdbarch *gdbarch = regcache->arch ();
CORE_ADDR addr;
gdb_byte buf[4];
uint16_t inst;
uint32_t tmpu32;
ULONGEST fp;
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- struct regcache *regcache = get_current_regcache ();
+ std::vector<CORE_ADDR> next_pcs;
- addr = get_frame_pc (frame);
+ addr = regcache_read_pc (regcache);
inst = (uint16_t) moxie_process_readu (addr, buf, 2, byte_order);
case 0x09: /* bleu */
/* Insert breaks on both branches, because we can't currently tell
which way things will go. */
- insert_single_step_breakpoint (gdbarch, aspace, addr + 2);
- insert_single_step_breakpoint (gdbarch, aspace, addr + 2 + INST2OFFSET(inst));
+ next_pcs.push_back (addr + 2);
+ next_pcs.push_back (addr + 2 + INST2OFFSET(inst));
break;
default:
{
else
{
/* This is a Form 2 instruction. They are all 16 bits. */
- insert_single_step_breakpoint (gdbarch, aspace, addr + 2);
+ next_pcs.push_back (addr + 2);
}
}
else
case 0x32: /* udiv.l */
case 0x33: /* mod.l */
case 0x34: /* umod.l */
- insert_single_step_breakpoint (gdbarch, aspace, addr + 2);
+ next_pcs.push_back (addr + 2);
break;
/* 32-bit instructions. */
case 0x37: /* sto.b */
case 0x38: /* ldo.s */
case 0x39: /* sto.s */
- insert_single_step_breakpoint (gdbarch, aspace, addr + 4);
+ next_pcs.push_back (addr + 4);
break;
/* 48-bit instructions. */
case 0x20: /* ldi.s (immediate) */
case 0x22: /* lda.s */
case 0x24: /* sta.s */
- insert_single_step_breakpoint (gdbarch, aspace, addr + 6);
+ next_pcs.push_back (addr + 6);
break;
/* Control flow instructions. */
case 0x03: /* jsra */
case 0x1a: /* jmpa */
- insert_single_step_breakpoint (gdbarch, aspace,
- moxie_process_readu (addr + 2,
- buf, 4,
- byte_order));
+ next_pcs.push_back (moxie_process_readu (addr + 2, buf, 4,
+ byte_order));
break;
case 0x04: /* ret */
regcache_cooked_read_unsigned (regcache, MOXIE_FP_REGNUM, &fp);
- insert_single_step_breakpoint (gdbarch, aspace,
- moxie_process_readu (fp + 4,
- buf, 4,
- byte_order));
+ next_pcs.push_back (moxie_process_readu (fp + 4, buf, 4, byte_order));
break;
case 0x19: /* jsr */
case 0x25: /* jmp */
- regcache_raw_read (regcache,
- (inst >> 4) & 0xf, (gdb_byte *) & tmpu32);
- insert_single_step_breakpoint (gdbarch, aspace,
- tmpu32);
+ regcache->raw_read ((inst >> 4) & 0xf, (gdb_byte *) & tmpu32);
+ next_pcs.push_back (tmpu32);
break;
case 0x30: /* swi */
}
}
- return 1;
-}
-
-/* Implement the "read_pc" gdbarch method. */
-
-static CORE_ADDR
-moxie_read_pc (struct regcache *regcache)
-{
- ULONGEST pc;
-
- regcache_cooked_read_unsigned (regcache, MOXIE_PC_REGNUM, &pc);
- return pc;
-}
-
-/* Implement the "write_pc" gdbarch method. */
-
-static void
-moxie_write_pc (struct regcache *regcache, CORE_ADDR val)
-{
- regcache_cooked_write_unsigned (regcache, MOXIE_PC_REGNUM, val);
-}
-
-/* Implement the "unwind_sp" gdbarch method. */
-
-static CORE_ADDR
-moxie_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- return frame_unwind_register_unsigned (next_frame, MOXIE_SP_REGNUM);
+ return next_pcs;
}
/* Given a return value in `regbuf' with a type `valtype',
moxie_extract_return_value (struct type *type, struct regcache *regcache,
gdb_byte *dst)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int len = TYPE_LENGTH (type);
ULONGEST tmp;
return cache;
}
-/* Implement the "unwind_pc" gdbarch method. */
-
-static CORE_ADDR
-moxie_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- return frame_unwind_register_unsigned (next_frame, MOXIE_PC_REGNUM);
-}
-
/* Given a GDB frame, determine the address of the calling function's
frame. This will be used to create a new GDB frame struct. */
moxie_frame_base_address
};
-static struct frame_id
-moxie_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
- CORE_ADDR sp = get_frame_register_unsigned (this_frame, MOXIE_SP_REGNUM);
-
- return frame_id_build (sp, get_frame_pc (this_frame));
-}
-
/* Parse the current instruction and record the values of the registers and
memory that will be changed in current instruction to "record_arch_list".
Return -1 if something wrong. */
break;
case 0x03: /* jsra */
{
- regcache_raw_read (regcache,
+ regcache->raw_read (
MOXIE_SP_REGNUM, (gdb_byte *) & tmpu32);
tmpu32 = extract_unsigned_integer ((gdb_byte *) & tmpu32,
4, byte_order);
case 0x06: /* push */
{
int reg = (inst >> 4) & 0xf;
- regcache_raw_read (regcache, reg, (gdb_byte *) & tmpu32);
+ regcache->raw_read (reg, (gdb_byte *) & tmpu32);
tmpu32 = extract_unsigned_integer ((gdb_byte *) & tmpu32,
4, byte_order);
if (record_full_arch_list_add_reg (regcache, reg)
case 0x0b: /* st.l */
{
int reg = (inst >> 4) & 0xf;
- regcache_raw_read (regcache, reg, (gdb_byte *) & tmpu32);
+ regcache->raw_read (reg, (gdb_byte *) & tmpu32);
tmpu32 = extract_unsigned_integer ((gdb_byte *) & tmpu32,
4, byte_order);
if (record_full_arch_list_add_mem (tmpu32, 4))
int reg = (inst >> 4) & 0xf;
uint32_t offset = (((int16_t) moxie_process_readu (addr+2, buf, 2,
byte_order)) << 16 ) >> 16;
- regcache_raw_read (regcache, reg, (gdb_byte *) & tmpu32);
+ regcache->raw_read (reg, (gdb_byte *) & tmpu32);
tmpu32 = extract_unsigned_integer ((gdb_byte *) & tmpu32,
4, byte_order);
tmpu32 += offset;
}
case 0x19: /* jsr */
{
- regcache_raw_read (regcache,
+ regcache->raw_read (
MOXIE_SP_REGNUM, (gdb_byte *) & tmpu32);
tmpu32 = extract_unsigned_integer ((gdb_byte *) & tmpu32,
4, byte_order);
case 0x1e: /* st.b */
{
int reg = (inst >> 4) & 0xf;
- regcache_raw_read (regcache, reg, (gdb_byte *) & tmpu32);
+ regcache->raw_read (reg, (gdb_byte *) & tmpu32);
tmpu32 = extract_unsigned_integer ((gdb_byte *) & tmpu32,
4, byte_order);
if (record_full_arch_list_add_mem (tmpu32, 1))
case 0x23: /* st.s */
{
int reg = (inst >> 4) & 0xf;
- regcache_raw_read (regcache, reg, (gdb_byte *) & tmpu32);
+ regcache->raw_read (reg, (gdb_byte *) & tmpu32);
tmpu32 = extract_unsigned_integer ((gdb_byte *) & tmpu32,
4, byte_order);
if (record_full_arch_list_add_mem (tmpu32, 2))
uint32_t length, ptr;
/* Read buffer pointer is in $r1. */
- regcache_raw_read (regcache, 3, (gdb_byte *) & ptr);
+ regcache->raw_read (3, (gdb_byte *) & ptr);
ptr = extract_unsigned_integer ((gdb_byte *) & ptr,
4, byte_order);
/* String length is at 0x12($fp). */
- regcache_raw_read (regcache,
+ regcache->raw_read (
MOXIE_FP_REGNUM, (gdb_byte *) & tmpu32);
tmpu32 = extract_unsigned_integer ((gdb_byte *) & tmpu32,
4, byte_order);
int reg = (inst >> 4) & 0xf;
uint32_t offset = (((int16_t) moxie_process_readu (addr+2, buf, 2,
byte_order)) << 16 ) >> 16;
- regcache_raw_read (regcache, reg, (gdb_byte *) & tmpu32);
+ regcache->raw_read (reg, (gdb_byte *) & tmpu32);
tmpu32 = extract_unsigned_integer ((gdb_byte *) & tmpu32,
4, byte_order);
tmpu32 += offset;
int reg = (inst >> 4) & 0xf;
uint32_t offset = (((int16_t) moxie_process_readu (addr+2, buf, 2,
byte_order)) << 16 ) >> 16;
- regcache_raw_read (regcache, reg, (gdb_byte *) & tmpu32);
+ regcache->raw_read (reg, (gdb_byte *) & tmpu32);
tmpu32 = extract_unsigned_integer ((gdb_byte *) & tmpu32,
4, byte_order);
tmpu32 += offset;
return arches->gdbarch;
/* Allocate space for the new architecture. */
- tdep = XNEW (struct gdbarch_tdep);
+ tdep = XCNEW (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
- set_gdbarch_read_pc (gdbarch, moxie_read_pc);
- set_gdbarch_write_pc (gdbarch, moxie_write_pc);
- set_gdbarch_unwind_sp (gdbarch, moxie_unwind_sp);
+ set_gdbarch_wchar_bit (gdbarch, 32);
+ set_gdbarch_wchar_signed (gdbarch, 0);
set_gdbarch_num_regs (gdbarch, MOXIE_NUM_REGS);
set_gdbarch_sp_regnum (gdbarch, MOXIE_SP_REGNUM);
set_gdbarch_skip_prologue (gdbarch, moxie_skip_prologue);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
- SET_GDBARCH_BREAKPOINT_MANIPULATION (moxie);
+ set_gdbarch_breakpoint_kind_from_pc (gdbarch,
+ moxie_breakpoint::kind_from_pc);
+ set_gdbarch_sw_breakpoint_from_kind (gdbarch,
+ moxie_breakpoint::bp_from_kind);
set_gdbarch_frame_align (gdbarch, moxie_frame_align);
frame_base_set_default (gdbarch, &moxie_frame_base);
- /* Methods for saving / extracting a dummy frame's ID. The ID's
- stack address must match the SP value returned by
- PUSH_DUMMY_CALL, and saved by generic_save_dummy_frame_tos. */
- set_gdbarch_dummy_id (gdbarch, moxie_dummy_id);
-
- set_gdbarch_unwind_pc (gdbarch, moxie_unwind_pc);
-
- set_gdbarch_print_insn (gdbarch, print_insn_moxie);
-
/* Hook in ABI-specific overrides, if they have been registered. */
gdbarch_init_osabi (info, gdbarch);
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