/tmp/gdb-8.1/gdb/microblaze-tdep.c File Reference

#include "defs.h"
#include "arch-utils.h"
#include "dis-asm.h"
#include "frame.h"
#include "trad-frame.h"
#include "symtab.h"
#include "value.h"
#include "gdbcmd.h"
#include "breakpoint.h"
#include "inferior.h"
#include "regcache.h"
#include "target.h"
#include "frame-base.h"
#include "frame-unwind.h"
#include "dwarf2-frame.h"
#include "osabi.h"
#include "target-descriptions.h"
#include "opcodes/microblaze-opcm.h"
#include "opcodes/microblaze-dis.h"
#include "microblaze-tdep.h"
#include "remote.h"
#include "features/microblaze-with-stack-protect.c"
#include "features/microblaze.c"

Go to the source code of this file.

Macros
#define	IS_RETURN(op)   (op == rtsd || op == rtid)
#define	IS_UPDATE_SP(op, rd, ra)   ((op == addik || op == addi) && rd == REG_SP && ra == REG_SP)
#define	IS_SPILL_SP(op, rd, ra)   ((op == swi || op == sw) && rd == REG_SP && ra == REG_SP)
#define	IS_SPILL_REG(op, rd, ra)   ((op == swi || op == sw) && rd != REG_SP && ra == REG_SP)
#define	IS_ALSO_SPILL_REG(op, rd, ra, rb)   ((op == swi || op == sw) && rd != REG_SP && ra == 0 && rb == REG_SP)
#define	IS_SETUP_FP(op, ra, rb)   ((op == add || op == addik || op == addk) && ra == REG_SP && rb == 0)
#define	IS_SPILL_REG_FP(op, rd, ra, fpregnum)   ((op == swi || op == sw) && rd != REG_SP && ra == fpregnum && ra != 0)
#define	IS_SAVE_HIDDEN_PTR(op, rd, ra, rb)   ((op == add || op == addik) && ra == MICROBLAZE_FIRST_ARGREG && rb == 0)
#define	MICROBLAZE_NUM_REGS   ARRAY_SIZE (microblaze_register_names)
#define	MICROBLAZE_MY_FRAME_IN_SP   0x1
#define	MICROBLAZE_MY_FRAME_IN_FP   0x2

Functions
static void	ATTRIBUTE_PRINTF (1, 2)
static const char *	microblaze_register_name (struct gdbarch *gdbarch, int regnum)
static struct type *	microblaze_register_type (struct gdbarch *gdbarch, int regnum)
static unsigned long	microblaze_fetch_instruction (CORE_ADDR pc)
typedef	BP_MANIPULATION (microblaze_break_insn)
static CORE_ADDR	microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR current_pc, struct microblaze_frame_cache *cache)
static CORE_ADDR	microblaze_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
static CORE_ADDR	microblaze_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
static struct microblaze_frame_cache *	microblaze_frame_cache (struct frame_info *next_frame, void **this_cache)
static void	microblaze_frame_this_id (struct frame_info *next_frame, void **this_cache, struct frame_id *this_id)
static struct value *	microblaze_frame_prev_register (struct frame_info *this_frame, void **this_cache, int regnum)
static CORE_ADDR	microblaze_frame_base_address (struct frame_info *next_frame, void **this_cache)
static void	microblaze_extract_return_value (struct type *type, struct regcache *regcache, gdb_byte *valbuf)
static void	microblaze_store_return_value (struct type *type, struct regcache *regcache, const gdb_byte *valbuf)
static enum return_value_convention	microblaze_return_value (struct gdbarch *gdbarch, struct value *function, struct type *type, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf)
static int	microblaze_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type)
static void	microblaze_write_pc (struct regcache *regcache, CORE_ADDR pc)
static int	microblaze_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int reg)
static void	microblaze_register_g_packet_guesses (struct gdbarch *gdbarch)
static struct gdbarch *	microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
void	_initialize_microblaze_tdep (void)

Variables
static const char *	microblaze_register_names []
static unsigned int	microblaze_debug_flag = 0
constexpr gdb_byte	microblaze_break_insn [] = MICROBLAZE_BREAKPOINT
static const struct frame_unwind	microblaze_frame_unwind
static const struct frame_base	microblaze_frame_base
static int	dwarf2_to_reg_map [78]

Macro Definition Documentation

IS_ALSO_SPILL_REG

#define IS_ALSO_SPILL_REG	(		op,
			rd,
			ra,
			rb
	)		((op == swi || op == sw) && rd != REG_SP && ra == 0 && rb == REG_SP)

Definition at line 57 of file microblaze-tdep.c.

Referenced by microblaze_analyze_prologue().

IS_RETURN

#define IS_RETURN

(

op

)

(op == rtsd || op == rtid)

Definition at line 50 of file microblaze-tdep.c.

Referenced by microblaze_analyze_prologue().

IS_SAVE_HIDDEN_PTR

#define IS_SAVE_HIDDEN_PTR	(		op,
			rd,
			ra,
			rb
	)		((op == add || op == addik) && ra == MICROBLAZE_FIRST_ARGREG && rb == 0)

Definition at line 63 of file microblaze-tdep.c.

Referenced by microblaze_analyze_prologue().

IS_SETUP_FP

#define IS_SETUP_FP	(		op,
			ra,
			rb
	)		((op == add || op == addik || op == addk) && ra == REG_SP && rb == 0)

Definition at line 59 of file microblaze-tdep.c.

Referenced by microblaze_analyze_prologue().

IS_SPILL_REG

#define IS_SPILL_REG	(		op,
			rd,
			ra
	)		((op == swi || op == sw) && rd != REG_SP && ra == REG_SP)

Definition at line 55 of file microblaze-tdep.c.

Referenced by microblaze_analyze_prologue().

IS_SPILL_REG_FP

#define IS_SPILL_REG_FP	(		op,
			rd,
			ra,
			fpregnum
	)		((op == swi || op == sw) && rd != REG_SP && ra == fpregnum && ra != 0)

Definition at line 61 of file microblaze-tdep.c.

Referenced by microblaze_analyze_prologue().

IS_SPILL_SP

#define IS_SPILL_SP	(		op,
			rd,
			ra
	)		((op == swi || op == sw) && rd == REG_SP && ra == REG_SP)

Definition at line 53 of file microblaze-tdep.c.

Referenced by microblaze_analyze_prologue().

IS_UPDATE_SP

#define IS_UPDATE_SP	(		op,
			rd,
			ra
	)		((op == addik || op == addi) && rd == REG_SP && ra == REG_SP)

Definition at line 51 of file microblaze-tdep.c.

Referenced by microblaze_analyze_prologue().

MICROBLAZE_MY_FRAME_IN_FP

#define MICROBLAZE_MY_FRAME_IN_FP   0x2

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

Referenced by microblaze_analyze_prologue().

MICROBLAZE_MY_FRAME_IN_SP

#define MICROBLAZE_MY_FRAME_IN_SP   0x1

Definition at line 167 of file microblaze-tdep.c.

Referenced by microblaze_analyze_prologue().

MICROBLAZE_NUM_REGS

#define MICROBLAZE_NUM_REGS   ARRAY_SIZE (microblaze_register_names)

Definition at line 81 of file microblaze-tdep.c.

Referenced by microblaze_gdbarch_init(), microblaze_register_g_packet_guesses(), and microblaze_register_name().

Function Documentation

_initialize_microblaze_tdep()

void _initialize_microblaze_tdep

(

void

)

Definition at line 763 of file microblaze-tdep.c.

References _, add_setshow_zuinteger_cmd(), class_maintenance, initialize_tdesc_microblaze(), initialize_tdesc_microblaze_with_stack_protect(), microblaze_debug_flag, microblaze_gdbarch_init(), register_gdbarch_init(), setdebuglist, and showdebuglist.

ATTRIBUTE_PRINTF()

static void ATTRIBUTE_PRINTF ( 1  , 2    )

static

Definition at line 85 of file microblaze-tdep.c.

References microblaze_debug_flag, printf_unfiltered(), and vprintf_unfiltered().

BP_MANIPULATION()

typedef BP_MANIPULATION

(

microblaze_break_insn

)

Definition at line 139 of file microblaze-tdep.c.

References microblaze_frame_cache::base, FRAME_OBSTACK_ZALLOC, microblaze_frame_cache::frameless_p, and microblaze_frame_cache::pc.

microblaze_analyze_prologue()

static CORE_ADDR microblaze_analyze_prologue ( struct gdbarch *  gdbarch, CORE_ADDR  pc, CORE_ADDR  current_pc, struct microblaze_frame_cache *  cache  )

static

Definition at line 198 of file microblaze-tdep.c.

References find_pc_partial_function(), flags, microblaze_frame_cache::fp_regnum, microblaze_frame_cache::frameless_p, microblaze_frame_cache::framesize, INST_WORD_SIZE, IS_ALSO_SPILL_REG, IS_RETURN, IS_SAVE_HIDDEN_PTR, IS_SETUP_FP, IS_SPILL_REG, IS_SPILL_REG_FP, IS_SPILL_SP, IS_UPDATE_SP, microblaze_fetch_instruction(), MICROBLAZE_MY_FRAME_IN_FP, MICROBLAZE_MY_FRAME_IN_SP, MICROBLAZE_SP_REGNUM, name, paddress(), microblaze_frame_cache::pc, and microblaze_frame_cache::register_offsets.

Referenced by microblaze_skip_prologue().

microblaze_dwarf2_reg_to_regnum()

static int microblaze_dwarf2_reg_to_regnum ( struct gdbarch *  gdbarch, int  reg  )

static

Definition at line 634 of file microblaze-tdep.c.

References dwarf2_to_reg_map.

Referenced by microblaze_gdbarch_init().

microblaze_extract_return_value()

static void microblaze_extract_return_value ( struct type *  type, struct regcache *  regcache, gdb_byte *  valbuf  )

static

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

References _, internal_error(), MICROBLAZE_REGISTER_SIZE, MICROBLAZE_RETVAL_REGNUM, regcache_cooked_read(), and TYPE_LENGTH.

Referenced by microblaze_return_value().

microblaze_fetch_instruction()

static unsigned long microblaze_fetch_instruction ( CORE_ADDR  pc )

static

Definition at line 125 of file microblaze-tdep.c.

References extract_unsigned_integer(), gdbarch_byte_order(), target_gdbarch(), and target_read_code().

Referenced by microblaze_analyze_prologue().

microblaze_frame_base_address()

static CORE_ADDR microblaze_frame_base_address ( struct frame_info *  next_frame, void **  this_cache  )

static

Definition at line 503 of file microblaze-tdep.c.

References microblaze_frame_cache::base, and microblaze_frame_cache().

microblaze_frame_cache()

static struct microblaze_frame_cache* microblaze_frame_cache ( struct frame_info *  next_frame, void **  this_cache  )

static

Definition at line 431 of file microblaze-tdep.c.

References gdbarch_num_regs(), get_frame_address_in_block(), get_frame_arch(), get_frame_func(), microblaze_frame_cache::pc, microblaze_frame_cache::register_offsets, microblaze_frame_cache::saved_regs, and trad_frame_alloc_saved_regs().

Referenced by microblaze_frame_base_address(), microblaze_frame_prev_register(), and microblaze_frame_this_id().

microblaze_frame_prev_register()

static struct value* microblaze_frame_prev_register ( struct frame_info *  this_frame, void **  this_cache, int  regnum  )

static

Definition at line 471 of file microblaze-tdep.c.

References microblaze_frame_cache::frameless_p, microblaze_frame_cache(), MICROBLAZE_PC_REGNUM, MICROBLAZE_SP_REGNUM, regnum, microblaze_frame_cache::saved_regs, and trad_frame_get_prev_register().

microblaze_frame_this_id()

static void microblaze_frame_this_id ( struct frame_info *  next_frame, void **  this_cache, struct frame_id *  this_id  )

static

Definition at line 457 of file microblaze-tdep.c.

References microblaze_frame_cache::base, frame_id_build(), microblaze_frame_cache(), and microblaze_frame_cache::pc.

microblaze_gdbarch_init()

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

static

Definition at line 654 of file microblaze-tdep.c.

References core_addr_lessthan(), dwarf2_append_unwinders(), dwarf2_frame_base_sniffer(), frame_base_append_sniffer(), frame_base_set_default(), frame_unwind_append_unwinder(), gdbarch_list::gdbarch, gdbarch_alloc(), gdbarch_init_osabi(), gdbarch_list_lookup_by_info(), microblaze_dwarf2_reg_to_regnum(), microblaze_frame_base, microblaze_frame_unwind, MICROBLAZE_NUM_CORE_REGS, MICROBLAZE_NUM_REGS, MICROBLAZE_PC_REGNUM, microblaze_register_g_packet_guesses(), microblaze_register_name(), microblaze_register_names, microblaze_register_type(), microblaze_return_value(), MICROBLAZE_SHR_REGNUM, microblaze_skip_prologue(), MICROBLAZE_SLR_REGNUM, MICROBLAZE_SP_REGNUM, microblaze_stabs_argument_has_addr(), microblaze_unwind_pc(), microblaze_write_pc(), ON_STACK, set_gdbarch_breakpoint_kind_from_pc(), set_gdbarch_call_dummy_location(), set_gdbarch_dwarf2_reg_to_regnum(), set_gdbarch_frame_args_skip(), set_gdbarch_inner_than(), set_gdbarch_long_double_bit(), set_gdbarch_num_regs(), set_gdbarch_pc_regnum(), set_gdbarch_register_name(), set_gdbarch_register_type(), set_gdbarch_return_value(), set_gdbarch_skip_prologue(), set_gdbarch_sp_regnum(), set_gdbarch_stabs_argument_has_addr(), set_gdbarch_sw_breakpoint_from_kind(), set_gdbarch_unwind_pc(), set_gdbarch_write_pc(), gdbarch_info::target_desc, tdesc_data, tdesc_data_alloc(), tdesc_data_cleanup(), tdesc_find_feature(), tdesc_has_registers(), tdesc_microblaze, tdesc_numbered_register(), tdesc_use_registers(), and XCNEW.

Referenced by _initialize_microblaze_tdep().

microblaze_register_g_packet_guesses()

static void microblaze_register_g_packet_guesses ( struct gdbarch *  gdbarch )

static

Definition at line 642 of file microblaze-tdep.c.

References MICROBLAZE_NUM_CORE_REGS, MICROBLAZE_NUM_REGS, register_remote_g_packet_guess(), tdesc_microblaze, and tdesc_microblaze_with_stack_protect.

Referenced by microblaze_gdbarch_init().

microblaze_register_name()

static const char* microblaze_register_name ( struct gdbarch *  gdbarch, int  regnum  )

static

Definition at line 102 of file microblaze-tdep.c.

References MICROBLAZE_NUM_REGS, microblaze_register_names, and regnum.

Referenced by microblaze_gdbarch_init().

microblaze_register_type()

static struct type* microblaze_register_type ( struct gdbarch *  gdbarch, int  regnum  )

static

Definition at line 110 of file microblaze-tdep.c.

References builtin_type::builtin_data_ptr, builtin_type::builtin_func_ptr, builtin_type::builtin_int, builtin_type(), MICROBLAZE_PC_REGNUM, MICROBLAZE_SP_REGNUM, and regnum.

Referenced by microblaze_gdbarch_init().

microblaze_return_value()

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

static

Definition at line 586 of file microblaze-tdep.c.

References microblaze_extract_return_value(), microblaze_store_return_value(), and RETURN_VALUE_REGISTER_CONVENTION.

Referenced by microblaze_gdbarch_init().

microblaze_skip_prologue()

static CORE_ADDR microblaze_skip_prologue ( struct gdbarch *  gdbarch, CORE_ADDR  start_pc  )

static

Definition at line 401 of file microblaze-tdep.c.

References symtab_and_line::end, find_pc_line(), find_pc_partial_function(), and microblaze_analyze_prologue().

Referenced by microblaze_gdbarch_init().

microblaze_stabs_argument_has_addr()

static int microblaze_stabs_argument_has_addr ( struct gdbarch *  gdbarch, struct type *  type  )

static

Definition at line 599 of file microblaze-tdep.c.

References TYPE_LENGTH.

Referenced by microblaze_gdbarch_init().

microblaze_store_return_value()

static void microblaze_store_return_value ( struct type *  type, struct regcache *  regcache, const gdb_byte *  valbuf  )

static

Definition at line 562 of file microblaze-tdep.c.

References gdb_assert, memset(), MICROBLAZE_RETVAL_REGNUM, regcache_cooked_write(), and TYPE_LENGTH.

Referenced by microblaze_return_value().

microblaze_unwind_pc()

static CORE_ADDR microblaze_unwind_pc ( struct gdbarch *  gdbarch, struct frame_info *  next_frame  )

static

Definition at line 382 of file microblaze-tdep.c.

References extract_typed_address(), frame_relative_level(), frame_unwind_register(), MICROBLAZE_PC_REGNUM, and microblaze_frame_cache::pc.

Referenced by microblaze_gdbarch_init().

microblaze_write_pc()

static void microblaze_write_pc ( struct regcache *  regcache, CORE_ADDR  pc  )

static

Definition at line 605 of file microblaze-tdep.c.

References MICROBLAZE_PC_REGNUM, and regcache_cooked_write_unsigned().

Referenced by microblaze_gdbarch_init().

Variable Documentation

dwarf2_to_reg_map

int dwarf2_to_reg_map[78]

static

Initial value:

=
{ 0  ,   1  ,   2  ,   3  ,  
  4  ,   5  ,   6  ,   7  ,  
  8  ,   9  ,  10  ,  11  ,  
  12 ,  13  ,  14  ,  15  ,  
  16 ,  17  ,  18  ,  19  ,  
  20 ,  21  ,  22  ,  23  ,  
  24 ,  25  ,  26  ,  27  ,  
  28 ,  29  ,  30  ,  31  ,  
  -1 ,  -1  ,  -1  ,  -1  ,  
  -1 ,  -1  ,  -1  ,  -1  ,  
  -1 ,  -1  ,  -1  , -1  , 
  -1 , -1  , -1  , -1  , 
  -1 , -1  , -1  , -1  , 
  -1 , -1  , -1  , -1  , 
  -1 , -1  , -1  , -1  , 
  -1 , -1  , -1  , -1  , 
  -1 , -1  , -1  , 33  , 
  -1 , -1  , -1  , -1  , 
  -1 , -1  , -1  , -1  , 
  -1 , -1                    
}

Definition at line 610 of file microblaze-tdep.c.

Referenced by microblaze_dwarf2_reg_to_regnum().

microblaze_break_insn

constexpr gdb_byte microblaze_break_insn[] = MICROBLAZE_BREAKPOINT

Definition at line 137 of file microblaze-tdep.c.

microblaze_debug_flag

unsigned int microblaze_debug_flag = 0

static

Definition at line 83 of file microblaze-tdep.c.

Referenced by _initialize_microblaze_tdep(), and ATTRIBUTE_PRINTF().

microblaze_frame_base

const struct frame_base microblaze_frame_base

static

Initial value:

=
{
  &microblaze_frame_unwind,
  microblaze_frame_base_address,
  microblaze_frame_base_address,
  microblaze_frame_base_address
}

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

Referenced by microblaze_gdbarch_init().

microblaze_frame_unwind

const struct frame_unwind microblaze_frame_unwind

static

Initial value:

=
{
  NORMAL_FRAME,
  default_frame_unwind_stop_reason,
  microblaze_frame_this_id,
  microblaze_frame_prev_register,
  NULL,
  default_frame_sniffer
}

Definition at line 492 of file microblaze-tdep.c.

Referenced by microblaze_gdbarch_init().

microblaze_register_names

const char* microblaze_register_names[]

static

Initial value:

=
{
  "r0",   "r1",  "r2",    "r3",   "r4",   "r5",   "r6",   "r7",
  "r8",   "r9",  "r10",   "r11",  "r12",  "r13",  "r14",  "r15",
  "r16",  "r17", "r18",   "r19",  "r20",  "r21",  "r22",  "r23",
  "r24",  "r25", "r26",   "r27",  "r28",  "r29",  "r30",  "r31",
  "rpc",  "rmsr", "rear", "resr", "rfsr", "rbtr",
  "rpvr0", "rpvr1", "rpvr2", "rpvr3", "rpvr4", "rpvr5", "rpvr6",
  "rpvr7", "rpvr8", "rpvr9", "rpvr10", "rpvr11",
  "redr", "rpid", "rzpr", "rtlbx", "rtlbsx", "rtlblo", "rtlbhi",
  "rslr", "rshr"
}

Definition at line 68 of file microblaze-tdep.c.

Referenced by microblaze_gdbarch_init(), and microblaze_register_name().