GDB (xrefs)
Classes | Enumerations | Functions | Variables
/tmp/gdb-8.1/gdb/msp430-tdep.c File Reference
#include "defs.h"
#include "arch-utils.h"
#include "prologue-value.h"
#include "target.h"
#include "regcache.h"
#include "dis-asm.h"
#include "gdbtypes.h"
#include "frame.h"
#include "frame-unwind.h"
#include "frame-base.h"
#include "value.h"
#include "gdbcore.h"
#include "dwarf2-frame.h"
#include "reggroups.h"
#include "elf/msp430.h"
#include "opcode/msp430-decode.h"
#include "elf-bfd.h"

Go to the source code of this file.

Classes

struct  gdbarch_tdep
 
struct  msp430_prologue
 

Enumerations

enum  {
  MSP430_PC_RAW_REGNUM, MSP430_SP_RAW_REGNUM, MSP430_SR_RAW_REGNUM, MSP430_CG_RAW_REGNUM,
  MSP430_R4_RAW_REGNUM, MSP430_R5_RAW_REGNUM, MSP430_R6_RAW_REGNUM, MSP430_R7_RAW_REGNUM,
  MSP430_R8_RAW_REGNUM, MSP430_R9_RAW_REGNUM, MSP430_R10_RAW_REGNUM, MSP430_R11_RAW_REGNUM,
  MSP430_R12_RAW_REGNUM, MSP430_R13_RAW_REGNUM, MSP430_R14_RAW_REGNUM, MSP430_R15_RAW_REGNUM,
  MSP430_NUM_REGS, MSP430_PC_REGNUM = MSP430_NUM_REGS, MSP430_SP_REGNUM, MSP430_SR_REGNUM,
  MSP430_CG_REGNUM, MSP430_R4_REGNUM, MSP430_R5_REGNUM, MSP430_R6_REGNUM,
  MSP430_R7_REGNUM, MSP430_R8_REGNUM, MSP430_R9_REGNUM, MSP430_R10_REGNUM,
  MSP430_R11_REGNUM, MSP430_R12_REGNUM, MSP430_R13_REGNUM, MSP430_R14_REGNUM,
  MSP430_R15_REGNUM, MSP430_NUM_TOTAL_REGS, MSP430_NUM_PSEUDO_REGS = MSP430_NUM_TOTAL_REGS - MSP430_NUM_REGS
}
 
enum  { MSP_ISA_MSP430, MSP_ISA_MSP430X }
 
enum  { MSP_SMALL_CODE_MODEL, MSP_LARGE_CODE_MODEL }
 

Functions

static struct type * msp430_register_type (struct gdbarch *gdbarch, int reg_nr)
 
static struct type * msp430x_register_type (struct gdbarch *gdbarch, int reg_nr)
 
static const char * msp430_register_name (struct gdbarch *gdbarch, int regnr)
 
static int msp430_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *group)
 
static enum register_status msp430_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int regnum, gdb_byte *buffer)
 
static void msp430_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int regnum, const gdb_byte *buffer)
 
static int msp430_register_sim_regno (struct gdbarch *gdbarch, int regnum)
 
typedef BP_MANIPULATION (msp430_break_insn)
 
static int msp430_get_opcode_byte (void *handle)
 
static void check_for_saved (void *result_untyped, pv_t addr, CORE_ADDR size, pv_t value)
 
static void msp430_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc, CORE_ADDR limit_pc, struct msp430_prologue *result)
 
static CORE_ADDR msp430_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
 
static CORE_ADDR msp430_unwind_pc (struct gdbarch *arch, struct frame_info *next_frame)
 
static CORE_ADDR msp430_unwind_sp (struct gdbarch *arch, struct frame_info *next_frame)
 
static struct msp430_prologue * msp430_analyze_frame_prologue (struct frame_info *this_frame, void **this_prologue_cache)
 
static CORE_ADDR msp430_frame_base (struct frame_info *this_frame, void **this_prologue_cache)
 
static void msp430_this_id (struct frame_info *this_frame, void **this_prologue_cache, struct frame_id *this_id)
 
static struct value * msp430_prev_register (struct frame_info *this_frame, void **this_prologue_cache, int regnum)
 
static int msp430_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 
static enum return_value_convention msp430_return_value (struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf)
 
static CORE_ADDR msp430_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
 
static struct frame_id msp430_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
 
static CORE_ADDR msp430_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr)
 
static int msp430_in_return_stub (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name)
 
static CORE_ADDR msp430_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
 
static struct gdbarch * msp430_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
void _initialize_msp430_tdep (void)
 

Variables

constexpr gdb_byte msp430_break_insn [] = { 0x43, 0x43 }
 
static const struct frame_unwind msp430_unwind
 
static const char msp430_epilog_name_prefix [] = "__mspabi_func_epilog_"
 

Enumeration Type Documentation

◆ anonymous enum

anonymous enum
Enumerator
MSP_ISA_MSP430 
MSP_ISA_MSP430X 

Definition at line 86 of file msp430-tdep.c.

◆ anonymous enum

anonymous enum
Enumerator
MSP_SMALL_CODE_MODEL 
MSP_LARGE_CODE_MODEL 

Definition at line 95 of file msp430-tdep.c.

◆ anonymous enum

anonymous enum
Enumerator
MSP430_PC_RAW_REGNUM 
MSP430_SP_RAW_REGNUM 
MSP430_SR_RAW_REGNUM 
MSP430_CG_RAW_REGNUM 
MSP430_R4_RAW_REGNUM 
MSP430_R5_RAW_REGNUM 
MSP430_R6_RAW_REGNUM 
MSP430_R7_RAW_REGNUM 
MSP430_R8_RAW_REGNUM 
MSP430_R9_RAW_REGNUM 
MSP430_R10_RAW_REGNUM 
MSP430_R11_RAW_REGNUM 
MSP430_R12_RAW_REGNUM 
MSP430_R13_RAW_REGNUM 
MSP430_R14_RAW_REGNUM 
MSP430_R15_RAW_REGNUM 
MSP430_NUM_REGS 
MSP430_PC_REGNUM 
MSP430_SP_REGNUM 
MSP430_SR_REGNUM 
MSP430_CG_REGNUM 
MSP430_R4_REGNUM 
MSP430_R5_REGNUM 
MSP430_R6_REGNUM 
MSP430_R7_REGNUM 
MSP430_R8_REGNUM 
MSP430_R9_REGNUM 
MSP430_R10_REGNUM 
MSP430_R11_REGNUM 
MSP430_R12_REGNUM 
MSP430_R13_REGNUM 
MSP430_R14_REGNUM 
MSP430_R15_REGNUM 
MSP430_NUM_TOTAL_REGS 
MSP430_NUM_PSEUDO_REGS 

Definition at line 44 of file msp430-tdep.c.

Function Documentation

◆ _initialize_msp430_tdep()

void _initialize_msp430_tdep ( void  )

Definition at line 1022 of file msp430-tdep.c.

References msp430_gdbarch_init(), and register_gdbarch_init().

◆ BP_MANIPULATION()

typedef BP_MANIPULATION ( msp430_break_insn  )

Definition at line 280 of file msp430-tdep.c.

◆ check_for_saved()

static void check_for_saved ( void *  result_untyped,
pv_t  addr,
CORE_ADDR  size,
pv_t  value 
)
static

Definition at line 321 of file msp430-tdep.c.

References prologue_value::k, MSP430_SP_REGNUM, pv_is_register(), pvk_register, value::reg, msp430_prologue::reg_offset, register_size(), size, and target_gdbarch().

Referenced by msp430_analyze_prologue().

◆ msp430_analyze_frame_prologue()

static struct msp430_prologue* msp430_analyze_frame_prologue ( struct frame_info *  this_frame,
void **  this_prologue_cache 
)
static

Definition at line 472 of file msp430-tdep.c.

References FRAME_OBSTACK_ZALLOC, get_frame_arch(), get_frame_func(), get_frame_pc(), and msp430_analyze_prologue().

Referenced by msp430_frame_base(), and msp430_prev_register().

◆ msp430_analyze_prologue()

static void msp430_analyze_prologue ( struct gdbarch *  gdbarch,
CORE_ADDR  start_pc,
CORE_ADDR  limit_pc,
struct msp430_prologue *  result 
)
static

Definition at line 336 of file msp430-tdep.c.

References check_for_saved(), gdbarch_tdep::code_model, msp430_prologue::frame_size, gdbarch_addr_bit(), gdbarch_tdep(), memset(), msp430_get_opcode_byte(), MSP430_NUM_TOTAL_REGS, MSP430_PC_REGNUM, MSP430_SP_REGNUM, MSP_LARGE_CODE_MODEL, msp430_prologue::prologue_end, pv_add_constant(), pv_is_register(), pv_register(), msp430_prologue::reg_offset, pv_area::scan(), size, and pv_area::store().

Referenced by msp430_analyze_frame_prologue(), and msp430_skip_prologue().

◆ msp430_dummy_id()

static struct frame_id msp430_dummy_id ( struct gdbarch *  gdbarch,
struct frame_info *  this_frame 
)
static

Definition at line 657 of file msp430-tdep.c.

References frame_id_build(), get_frame_pc(), get_frame_register_unsigned(), and MSP430_SP_REGNUM.

Referenced by msp430_gdbarch_init().

◆ msp430_dwarf2_reg_to_regnum()

static int msp430_dwarf2_reg_to_regnum ( struct gdbarch *  gdbarch,
int  reg 
)
static

Definition at line 568 of file msp430-tdep.c.

References MSP430_NUM_REGS.

Referenced by msp430_gdbarch_init().

◆ msp430_frame_align()

static CORE_ADDR msp430_frame_align ( struct gdbarch *  gdbarch,
CORE_ADDR  sp 
)
static

Definition at line 648 of file msp430-tdep.c.

References align_down().

Referenced by msp430_gdbarch_init().

◆ msp430_frame_base()

static CORE_ADDR msp430_frame_base ( struct frame_info *  this_frame,
void **  this_prologue_cache 
)
static

Definition at line 500 of file msp430-tdep.c.

References msp430_prologue::frame_size, get_frame_register_unsigned(), msp430_analyze_frame_prologue(), and MSP430_SP_REGNUM.

Referenced by msp430_prev_register(), and msp430_this_id().

◆ msp430_gdbarch_init()

static struct gdbarch* msp430_gdbarch_init ( struct gdbarch_info  info,
struct gdbarch_list *  arches 
)
static

Definition at line 858 of file msp430-tdep.c.

References _, gdbarch_info::abfd, gdbarch_tdep::code_model, core_addr_lessthan(), dwarf2_append_unwinders(), gdbarch_tdep::elf_flags, error(), floatformats_ieee_double, floatformats_ieee_single, frame_unwind_append_unwinder(), gdbarch_list::gdbarch, gdbarch_alloc(), gdbarch_bfd_arch_info(), gdbarch_list_lookup_by_info(), gdbarch_tdep(), get_current_arch(), internal_error(), gdbarch_tdep::isa, msp430_dummy_id(), msp430_dwarf2_reg_to_regnum(), msp430_frame_align(), msp430_in_return_stub(), MSP430_NUM_PSEUDO_REGS, MSP430_NUM_REGS, MSP430_PC_REGNUM, msp430_pseudo_register_read(), msp430_pseudo_register_write(), msp430_push_dummy_call(), msp430_register_name(), msp430_register_reggroup_p(), msp430_register_sim_regno(), msp430_register_type(), msp430_return_value(), msp430_skip_prologue(), msp430_skip_trampoline_code(), MSP430_SP_REGNUM, msp430_unwind, msp430_unwind_pc(), msp430_unwind_sp(), msp430x_register_type(), MSP_ISA_MSP430, MSP_ISA_MSP430X, MSP_LARGE_CODE_MODEL, MSP_SMALL_CODE_MODEL, gdbarch_list::next, set_gdbarch_addr_bit(), set_gdbarch_breakpoint_kind_from_pc(), set_gdbarch_char_signed(), set_gdbarch_decr_pc_after_break(), set_gdbarch_double_bit(), set_gdbarch_double_format(), set_gdbarch_dummy_id(), set_gdbarch_dwarf2_addr_size(), set_gdbarch_dwarf2_reg_to_regnum(), set_gdbarch_float_bit(), set_gdbarch_float_format(), set_gdbarch_frame_align(), set_gdbarch_in_solib_return_trampoline(), set_gdbarch_inner_than(), set_gdbarch_int_bit(), set_gdbarch_long_bit(), set_gdbarch_long_double_bit(), set_gdbarch_long_double_format(), set_gdbarch_long_long_bit(), set_gdbarch_num_pseudo_regs(), set_gdbarch_num_regs(), set_gdbarch_pc_regnum(), set_gdbarch_pseudo_register_read(), set_gdbarch_pseudo_register_write(), set_gdbarch_ptr_bit(), set_gdbarch_push_dummy_call(), set_gdbarch_register_name(), set_gdbarch_register_reggroup_p(), set_gdbarch_register_sim_regno(), set_gdbarch_register_type(), set_gdbarch_return_value(), set_gdbarch_short_bit(), set_gdbarch_skip_prologue(), set_gdbarch_skip_trampoline_code(), set_gdbarch_sp_regnum(), set_gdbarch_sw_breakpoint_from_kind(), set_gdbarch_unwind_pc(), set_gdbarch_unwind_sp(), set_gdbarch_vbit_in_delta(), and XCNEW.

Referenced by _initialize_msp430_tdep().

◆ msp430_get_opcode_byte()

static int msp430_get_opcode_byte ( void *  handle)
static

Definition at line 296 of file msp430-tdep.c.

References status, and target_read_memory().

Referenced by msp430_analyze_prologue().

◆ msp430_in_return_stub()

static int msp430_in_return_stub ( struct gdbarch *  gdbarch,
CORE_ADDR  pc,
const char *  name 
)
static

Definition at line 821 of file msp430-tdep.c.

References msp430_epilog_name_prefix, name, and startswith().

Referenced by msp430_gdbarch_init(), and msp430_skip_trampoline_code().

◆ msp430_prev_register()

static struct value* msp430_prev_register ( struct frame_info *  this_frame,
void **  this_prologue_cache,
int  regnum 
)
static

Definition at line 523 of file msp430-tdep.c.

References frame_unwind_got_constant(), frame_unwind_got_memory(), frame_unwind_got_register(), msp430_analyze_frame_prologue(), msp430_frame_base(), MSP430_PC_REGNUM, MSP430_SP_REGNUM, msp430_prologue::reg_offset, regnum, and value_as_long().

◆ msp430_pseudo_register_read()

static enum register_status msp430_pseudo_register_read ( struct gdbarch *  gdbarch,
struct regcache *  regcache,
int  regnum,
gdb_byte *  buffer 
)
static

Definition at line 220 of file msp430-tdep.c.

References gdb_assert_not_reached, gdbarch_byte_order(), MSP430_NUM_REGS, MSP430_NUM_TOTAL_REGS, REG_VALID, regcache_raw_read_unsigned(), register_size(), regnum, status, and store_unsigned_integer().

Referenced by msp430_gdbarch_init().

◆ msp430_pseudo_register_write()

static void msp430_pseudo_register_write ( struct gdbarch *  gdbarch,
struct regcache *  regcache,
int  regnum,
const gdb_byte *  buffer 
)
static

Definition at line 245 of file msp430-tdep.c.

References extract_unsigned_integer(), gdb_assert_not_reached, gdbarch_byte_order(), MSP430_NUM_REGS, MSP430_NUM_TOTAL_REGS, regcache_raw_write_unsigned(), register_size(), and regnum.

Referenced by msp430_gdbarch_init().

◆ msp430_push_dummy_call()

static CORE_ADDR msp430_push_dummy_call ( struct gdbarch *  gdbarch,
struct value *  function,
struct regcache *  regcache,
CORE_ADDR  bp_addr,
int  nargs,
struct value **  args,
CORE_ADDR  sp,
int  struct_return,
CORE_ADDR  struct_addr 
)
static

Definition at line 669 of file msp430-tdep.c.

References align_down(), check_typedef(), gdbarch_tdep::code_model, extract_unsigned_integer(), gdb_assert, gdbarch_byte_order(), gdbarch_tdep(), MSP430_R12_REGNUM, MSP430_R15_REGNUM, MSP430_SP_REGNUM, MSP_LARGE_CODE_MODEL, MSP_SMALL_CODE_MODEL, offset, regcache_cooked_write_unsigned(), size, store_unsigned_integer(), TYPE_CODE, TYPE_CODE_FUNC, TYPE_CODE_METHOD, TYPE_CODE_PTR, TYPE_CODE_STRUCT, TYPE_CODE_UNION, TYPE_IS_REFERENCE, TYPE_LENGTH, TYPE_TARGET_TYPE, value_address(), value_contents_all(), value_type(), write_memory(), and write_memory_unsigned_integer().

Referenced by msp430_gdbarch_init().

◆ msp430_register_name()

static const char* msp430_register_name ( struct gdbarch *  gdbarch,
int  regnr 
)
static

Definition at line 187 of file msp430-tdep.c.

Referenced by msp430_gdbarch_init().

◆ msp430_register_reggroup_p()

static int msp430_register_reggroup_p ( struct gdbarch *  gdbarch,
int  regnum,
struct reggroup *  group 
)
static

Definition at line 204 of file msp430-tdep.c.

References all_reggroup, general_reggroup, MSP430_NUM_REGS, MSP430_NUM_TOTAL_REGS, regnum, restore_reggroup, and save_reggroup.

Referenced by msp430_gdbarch_init().

◆ msp430_register_sim_regno()

static int msp430_register_sim_regno ( struct gdbarch *  gdbarch,
int  regnum 
)
static

Definition at line 268 of file msp430-tdep.c.

References gdb_assert, MSP430_NUM_REGS, and regnum.

Referenced by msp430_gdbarch_init().

◆ msp430_register_type()

static struct type* msp430_register_type ( struct gdbarch *  gdbarch,
int  reg_nr 
)
static

Definition at line 160 of file msp430-tdep.c.

References builtin_type::builtin_func_ptr, builtin_type(), builtin_type::builtin_uint16, builtin_type::builtin_uint32, MSP430_NUM_REGS, and MSP430_PC_REGNUM.

Referenced by msp430_gdbarch_init().

◆ msp430_return_value()

static enum return_value_convention msp430_return_value ( struct gdbarch *  gdbarch,
struct value *  function,
struct type *  valtype,
struct regcache *  regcache,
gdb_byte *  readbuf,
const gdb_byte *  writebuf 
)
static

Definition at line 578 of file msp430-tdep.c.

References gdbarch_tdep::code_model, extract_unsigned_integer(), gdbarch_byte_order(), gdbarch_tdep(), MSP430_R12_REGNUM, MSP_LARGE_CODE_MODEL, offset, regcache_cooked_read_unsigned(), regcache_cooked_write_unsigned(), RETURN_VALUE_REGISTER_CONVENTION, RETURN_VALUE_STRUCT_CONVENTION, size, store_unsigned_integer(), TYPE_CODE, TYPE_CODE_PTR, TYPE_CODE_STRUCT, TYPE_CODE_UNION, and TYPE_LENGTH.

Referenced by msp430_gdbarch_init().

◆ msp430_skip_prologue()

static CORE_ADDR msp430_skip_prologue ( struct gdbarch *  gdbarch,
CORE_ADDR  pc 
)
static

Definition at line 436 of file msp430-tdep.c.

References find_pc_partial_function(), msp430_analyze_prologue(), name, and msp430_prologue::prologue_end.

Referenced by msp430_gdbarch_init().

◆ msp430_skip_trampoline_code()

static CORE_ADDR msp430_skip_trampoline_code ( struct frame_info *  frame,
CORE_ADDR  pc 
)
static

Definition at line 830 of file msp430-tdep.c.

References gdbarch_byte_order(), get_frame_arch(), get_frame_register_unsigned(), lookup_minimal_symbol_by_pc(), bound_minimal_symbol::minsym, msp430_epilog_name_prefix, msp430_in_return_stub(), MSP430_SP_REGNUM, MSP_SMALL_CODE_MODEL, MSYMBOL_LINKAGE_NAME, and read_memory_integer().

Referenced by msp430_gdbarch_init().

◆ msp430_this_id()

static void msp430_this_id ( struct frame_info *  this_frame,
void **  this_prologue_cache,
struct frame_id *  this_id 
)
static

Definition at line 512 of file msp430-tdep.c.

References frame_id_build(), get_frame_func(), and msp430_frame_base().

◆ msp430_unwind_pc()

static CORE_ADDR msp430_unwind_pc ( struct gdbarch *  arch,
struct frame_info *  next_frame 
)
static

Definition at line 453 of file msp430-tdep.c.

References frame_unwind_register_unsigned(), and MSP430_PC_REGNUM.

Referenced by msp430_gdbarch_init().

◆ msp430_unwind_sp()

static CORE_ADDR msp430_unwind_sp ( struct gdbarch *  arch,
struct frame_info *  next_frame 
)
static

Definition at line 461 of file msp430-tdep.c.

References frame_unwind_register_unsigned(), and MSP430_SP_REGNUM.

Referenced by msp430_gdbarch_init().

◆ msp430x_register_type()

static struct type* msp430x_register_type ( struct gdbarch *  gdbarch,
int  reg_nr 
)
static

Definition at line 174 of file msp430-tdep.c.

References builtin_type::builtin_func_ptr, builtin_type(), builtin_type::builtin_uint32, MSP430_NUM_REGS, and MSP430_PC_REGNUM.

Referenced by msp430_gdbarch_init().

Variable Documentation

◆ msp430_break_insn

constexpr gdb_byte msp430_break_insn[] = { 0x43, 0x43 }

Definition at line 278 of file msp430-tdep.c.

◆ msp430_epilog_name_prefix

const char msp430_epilog_name_prefix[] = "__mspabi_func_epilog_"
static

Definition at line 816 of file msp430-tdep.c.

Referenced by msp430_in_return_stub(), and msp430_skip_trampoline_code().

◆ msp430_unwind

const struct frame_unwind msp430_unwind
static
Initial value:
= {
NORMAL_FRAME,
default_frame_unwind_stop_reason,
msp430_this_id,
msp430_prev_register,
NULL,
default_frame_sniffer
}
msp430_prev_register
static struct value * msp430_prev_register(struct frame_info *this_frame, void **this_prologue_cache, int regnum)
Definition: msp430-tdep.c:523
default_frame_sniffer
int default_frame_sniffer(const struct frame_unwind *self, struct frame_info *this_frame, void **this_prologue_cache)
Definition: frame-unwind.c:174
msp430_this_id
static void msp430_this_id(struct frame_info *this_frame, void **this_prologue_cache, struct frame_id *this_id)
Definition: msp430-tdep.c:512
default_frame_unwind_stop_reason
enum unwind_stop_reason default_frame_unwind_stop_reason(struct frame_info *this_frame, void **this_cache)
Definition: frame-unwind.c:184

Definition at line 556 of file msp430-tdep.c.

Referenced by msp430_gdbarch_init().

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