#define SC_OPCODE 0x38
#define SCD_OPCODE 0x3c
-static VEC (CORE_ADDR) *
+static std::vector<CORE_ADDR>
mips_deal_with_atomic_sequence (struct gdbarch *gdbarch, CORE_ADDR pc)
{
CORE_ADDR breaks[2] = {-1, -1};
int index;
int last_breakpoint = 0; /* Defaults to 0 (no breakpoints placed). */
const int atomic_sequence_length = 16; /* Instruction sequence length. */
- VEC (CORE_ADDR) *next_pcs = NULL;
insn = mips_fetch_instruction (gdbarch, ISA_MIPS, loc, NULL);
/* Assume all atomic sequences start with a ll/lld instruction. */
if (itype_op (insn) != LL_OPCODE && itype_op (insn) != LLD_OPCODE)
- return NULL;
+ return {};
/* Assume that no atomic sequence is longer than "atomic_sequence_length"
instructions. */
{
case 0: /* SPECIAL */
if (rtype_funct (insn) >> 1 == 4) /* JR, JALR */
- return 0; /* fallback to the standard single-step code. */
+ return {}; /* fallback to the standard single-step code. */
break;
case 1: /* REGIMM */
is_branch = ((itype_rt (insn) & 0xc) == 0 /* B{LT,GE}Z* */
break;
case 2: /* J */
case 3: /* JAL */
- return 0; /* fallback to the standard single-step code. */
+ return {}; /* fallback to the standard single-step code. */
case 4: /* BEQ */
case 5: /* BNE */
case 6: /* BLEZ */
{
branch_bp = loc + mips32_relative_offset (insn) + 4;
if (last_breakpoint >= 1)
- return 0; /* More than one branch found, fallback to the
- standard single-step code. */
+ return {}; /* More than one branch found, fallback to the
+ standard single-step code. */
breaks[1] = branch_bp;
last_breakpoint++;
}
/* Assume that the atomic sequence ends with a sc/scd instruction. */
if (itype_op (insn) != SC_OPCODE && itype_op (insn) != SCD_OPCODE)
- return NULL;
+ return {};
loc += MIPS_INSN32_SIZE;
if (last_breakpoint && pc <= breaks[1] && breaks[1] <= breaks[0])
last_breakpoint = 0;
+ std::vector<CORE_ADDR> next_pcs;
+
/* Effectively inserts the breakpoints. */
for (index = 0; index <= last_breakpoint; index++)
- VEC_safe_push (CORE_ADDR, next_pcs, breaks[index]);
+ next_pcs.push_back (breaks[index]);
return next_pcs;
}
-static VEC (CORE_ADDR) *
+static std::vector<CORE_ADDR>
micromips_deal_with_atomic_sequence (struct gdbarch *gdbarch,
CORE_ADDR pc)
{
ULONGEST insn;
int insn_count;
int index;
- VEC (CORE_ADDR) *next_pcs = NULL;
/* Assume all atomic sequences start with a ll/lld instruction. */
insn = mips_fetch_instruction (gdbarch, ISA_MICROMIPS, loc, NULL);
if (micromips_op (insn) != 0x18) /* POOL32C: bits 011000 */
- return NULL;
+ return {};
loc += MIPS_INSN16_SIZE;
insn <<= 16;
insn |= mips_fetch_instruction (gdbarch, ISA_MICROMIPS, loc, NULL);
if ((b12s4_op (insn) & 0xb) != 0x3) /* LL, LLD: bits 011000 0x11 */
- return NULL;
+ return {};
loc += MIPS_INSN16_SIZE;
/* Assume all atomic sequences end with an sc/scd instruction. Assume
case 0x35: /* J: bits 110101 */
case 0x3d: /* JAL: bits 111101 */
case 0x3c: /* JALX: bits 111100 */
- return 0; /* Fall back to the standard single-step code. */
+ return {}; /* Fall back to the standard single-step code. */
case 0x18: /* POOL32C: bits 011000 */
if ((b12s4_op (insn) & 0xb) == 0xb)
&& b5s5_op (insn) != 0x18)
/* JRADDIUSP: bits 010001 11000 */
break;
- return NULL; /* Fall back to the standard single-step code. */
+ return {}; /* Fall back to the standard single-step code. */
case 0x33: /* B16: bits 110011 */
- return NULL; /* Fall back to the standard single-step code. */
+ return {}; /* Fall back to the standard single-step code. */
}
break;
}
if (is_branch)
{
if (last_breakpoint >= 1)
- return NULL; /* More than one branch found, fallback to the
- standard single-step code. */
+ return {}; /* More than one branch found, fallback to the
+ standard single-step code. */
breaks[1] = branch_bp;
last_breakpoint++;
}
}
if (!sc_found)
- return NULL;
+ return {};
/* Insert a breakpoint right after the end of the atomic sequence. */
breaks[0] = loc;
if (last_breakpoint && pc <= breaks[1] && breaks[1] <= breaks[0])
last_breakpoint = 0;
+ std::vector<CORE_ADDR> next_pcs;
+
/* Effectively inserts the breakpoints. */
for (index = 0; index <= last_breakpoint; index++)
- VEC_safe_push (CORE_ADDR, next_pcs, breaks[index]);
+ next_pcs.push_back (breaks[index]);
return next_pcs;
}
-static VEC (CORE_ADDR) *
+static std::vector<CORE_ADDR>
deal_with_atomic_sequence (struct gdbarch *gdbarch, CORE_ADDR pc)
{
if (mips_pc_is_mips (pc))
else if (mips_pc_is_micromips (gdbarch, pc))
return micromips_deal_with_atomic_sequence (gdbarch, pc);
else
- return NULL;
+ return {};
}
/* mips_software_single_step() is called just before we want to resume
or kernel single-step support (MIPS on GNU/Linux for example). We find
the target of the coming instruction and breakpoint it. */
-VEC (CORE_ADDR) *
+std::vector<CORE_ADDR>
mips_software_single_step (struct regcache *regcache)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
CORE_ADDR pc, next_pc;
- VEC (CORE_ADDR) *next_pcs;
pc = regcache_read_pc (regcache);
- next_pcs = deal_with_atomic_sequence (gdbarch, pc);
- if (next_pcs != NULL)
+ std::vector<CORE_ADDR> next_pcs = deal_with_atomic_sequence (gdbarch, pc);
+
+ if (!next_pcs.empty ())
return next_pcs;
next_pc = mips_next_pc (regcache, pc);
- VEC_safe_push (CORE_ADDR, next_pcs, next_pc);
- return next_pcs;
+ return {next_pc};
}
/* Test whether the PC points to the return instruction at the
/* A struct that contains one or two floats. Each value is part
in the least significant part of their floating point
register.. */
- gdb_byte reg[MAX_REGISTER_SIZE];
int regnum;
int field;
for (field = 0, regnum = mips_regnum (gdbarch)->fp0;
{
struct gdbarch *gdbarch = get_frame_arch (frame);
/* Do values for GP (int) regs. */
- gdb_byte raw_buffer[MAX_REGISTER_SIZE];
+ const gdb_byte *raw_buffer;
+ struct value *value;
int ncols = (mips_abi_regsize (gdbarch) == 8 ? 4 : 8); /* display cols
per row. */
int col, byte;
break; /* End row: large register. */
/* OK: get the data in raw format. */
- if (!deprecated_frame_register_read (frame, regnum, raw_buffer))
+ value = get_frame_register_value (frame, regnum);
+ if (value_optimized_out (value)
+ || !value_entirely_available (value))
error (_("can't read register %d (%s)"),
regnum, gdbarch_register_name (gdbarch, regnum));
+ raw_buffer = value_contents_all (value);
/* pad small registers */
for (byte = 0;
byte < (mips_abi_regsize (gdbarch)
- register_size (gdbarch, regnum)); byte++)
- printf_filtered (" ");
+ fprintf_filtered (file, " ");
/* Now print the register value in hex, endian order. */
if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
for (byte =
}
/* Need a new architecture. Fill in a target specific vector. */
- tdep = XNEW (struct gdbarch_tdep);
+ tdep = XCNEW (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
tdep->elf_flags = elf_flags;
tdep->mips64_transfers_32bit_regs_p = mips64_transfers_32bit_regs_p;
projects / deliverable / binutils-gdb.git / blobdiff