3798 lines
99 KiB
C
3798 lines
99 KiB
C
/* dwarf.c -- display DWARF contents of a BFD binary file
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Copyright 2005, 2006, 2007
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Free Software Foundation, Inc.
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This file is part of GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#include "sysdep.h"
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#include "libiberty.h"
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#include "bfd.h"
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#include "bucomm.h"
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#include "elf/dwarf2.h"
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#include "dwarf.h"
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static int have_frame_base;
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static int need_base_address;
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static unsigned int last_pointer_size = 0;
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static int warned_about_missing_comp_units = FALSE;
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static unsigned int num_debug_info_entries = 0;
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static debug_info *debug_information = NULL;
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dwarf_vma eh_addr_size;
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int is_relocatable;
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int do_debug_info;
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int do_debug_abbrevs;
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int do_debug_lines;
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int do_debug_pubnames;
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int do_debug_aranges;
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int do_debug_ranges;
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int do_debug_frames;
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int do_debug_frames_interp;
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int do_debug_macinfo;
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int do_debug_str;
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int do_debug_loc;
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dwarf_vma (*byte_get) (unsigned char *, int);
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dwarf_vma
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byte_get_little_endian (unsigned char *field, int size)
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{
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switch (size)
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{
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case 1:
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return *field;
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case 2:
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return ((unsigned int) (field[0]))
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| (((unsigned int) (field[1])) << 8);
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case 4:
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return ((unsigned long) (field[0]))
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| (((unsigned long) (field[1])) << 8)
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| (((unsigned long) (field[2])) << 16)
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| (((unsigned long) (field[3])) << 24);
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case 8:
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if (sizeof (dwarf_vma) == 8)
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return ((dwarf_vma) (field[0]))
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| (((dwarf_vma) (field[1])) << 8)
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| (((dwarf_vma) (field[2])) << 16)
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| (((dwarf_vma) (field[3])) << 24)
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| (((dwarf_vma) (field[4])) << 32)
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| (((dwarf_vma) (field[5])) << 40)
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| (((dwarf_vma) (field[6])) << 48)
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| (((dwarf_vma) (field[7])) << 56);
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else if (sizeof (dwarf_vma) == 4)
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/* We want to extract data from an 8 byte wide field and
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place it into a 4 byte wide field. Since this is a little
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endian source we can just use the 4 byte extraction code. */
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return ((unsigned long) (field[0]))
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| (((unsigned long) (field[1])) << 8)
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| (((unsigned long) (field[2])) << 16)
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| (((unsigned long) (field[3])) << 24);
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default:
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error (_("Unhandled data length: %d\n"), size);
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abort ();
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}
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}
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dwarf_vma
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byte_get_big_endian (unsigned char *field, int size)
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{
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switch (size)
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{
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case 1:
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return *field;
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case 2:
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return ((unsigned int) (field[1])) | (((int) (field[0])) << 8);
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case 4:
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return ((unsigned long) (field[3]))
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| (((unsigned long) (field[2])) << 8)
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| (((unsigned long) (field[1])) << 16)
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| (((unsigned long) (field[0])) << 24);
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case 8:
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if (sizeof (dwarf_vma) == 8)
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return ((dwarf_vma) (field[7]))
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| (((dwarf_vma) (field[6])) << 8)
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| (((dwarf_vma) (field[5])) << 16)
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| (((dwarf_vma) (field[4])) << 24)
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| (((dwarf_vma) (field[3])) << 32)
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| (((dwarf_vma) (field[2])) << 40)
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| (((dwarf_vma) (field[1])) << 48)
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| (((dwarf_vma) (field[0])) << 56);
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else if (sizeof (dwarf_vma) == 4)
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{
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/* Although we are extracing data from an 8 byte wide field,
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we are returning only 4 bytes of data. */
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field += 4;
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return ((unsigned long) (field[3]))
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| (((unsigned long) (field[2])) << 8)
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| (((unsigned long) (field[1])) << 16)
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| (((unsigned long) (field[0])) << 24);
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}
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default:
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error (_("Unhandled data length: %d\n"), size);
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abort ();
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}
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}
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static dwarf_vma
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byte_get_signed (unsigned char *field, int size)
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{
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dwarf_vma x = byte_get (field, size);
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switch (size)
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{
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case 1:
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return (x ^ 0x80) - 0x80;
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case 2:
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return (x ^ 0x8000) - 0x8000;
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case 4:
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return (x ^ 0x80000000) - 0x80000000;
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case 8:
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return x;
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default:
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abort ();
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}
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}
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static unsigned long int
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read_leb128 (unsigned char *data, unsigned int *length_return, int sign)
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{
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unsigned long int result = 0;
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unsigned int num_read = 0;
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unsigned int shift = 0;
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unsigned char byte;
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do
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{
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byte = *data++;
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num_read++;
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result |= ((unsigned long int) (byte & 0x7f)) << shift;
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shift += 7;
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}
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while (byte & 0x80);
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if (length_return != NULL)
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*length_return = num_read;
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if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
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result |= -1L << shift;
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return result;
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}
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typedef struct State_Machine_Registers
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{
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unsigned long address;
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unsigned int file;
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unsigned int line;
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unsigned int column;
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int is_stmt;
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int basic_block;
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int end_sequence;
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/* This variable hold the number of the last entry seen
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in the File Table. */
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unsigned int last_file_entry;
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} SMR;
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static SMR state_machine_regs;
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static void
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reset_state_machine (int is_stmt)
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{
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state_machine_regs.address = 0;
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state_machine_regs.file = 1;
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state_machine_regs.line = 1;
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state_machine_regs.column = 0;
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state_machine_regs.is_stmt = is_stmt;
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state_machine_regs.basic_block = 0;
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state_machine_regs.end_sequence = 0;
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state_machine_regs.last_file_entry = 0;
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}
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/* Handled an extend line op.
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Returns the number of bytes read. */
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static int
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process_extended_line_op (unsigned char *data, int is_stmt)
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{
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unsigned char op_code;
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unsigned int bytes_read;
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unsigned int len;
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unsigned char *name;
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unsigned long adr;
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len = read_leb128 (data, & bytes_read, 0);
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data += bytes_read;
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if (len == 0)
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{
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warn (_("badly formed extended line op encountered!\n"));
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return bytes_read;
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}
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len += bytes_read;
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op_code = *data++;
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printf (_(" Extended opcode %d: "), op_code);
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switch (op_code)
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{
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case DW_LNE_end_sequence:
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printf (_("End of Sequence\n\n"));
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reset_state_machine (is_stmt);
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break;
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case DW_LNE_set_address:
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adr = byte_get (data, len - bytes_read - 1);
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printf (_("set Address to 0x%lx\n"), adr);
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state_machine_regs.address = adr;
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break;
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case DW_LNE_define_file:
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printf (_(" define new File Table entry\n"));
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printf (_(" Entry\tDir\tTime\tSize\tName\n"));
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printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
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name = data;
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data += strlen ((char *) data) + 1;
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printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
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data += bytes_read;
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printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
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data += bytes_read;
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printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
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printf (_("%s\n\n"), name);
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break;
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default:
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printf (_("UNKNOWN: length %d\n"), len - bytes_read);
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break;
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}
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return len;
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}
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static const char *
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fetch_indirect_string (unsigned long offset)
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{
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struct dwarf_section *section = &debug_displays [str].section;
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if (section->start == NULL)
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return _("<no .debug_str section>");
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/* DWARF sections under Mach-O have non-zero addresses. */
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offset -= section->address;
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if (offset > section->size)
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{
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warn (_("DW_FORM_strp offset too big: %lx\n"), offset);
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return _("<offset is too big>");
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}
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return (const char *) section->start + offset;
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}
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/* FIXME: There are better and more efficient ways to handle
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these structures. For now though, I just want something that
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is simple to implement. */
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typedef struct abbrev_attr
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{
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unsigned long attribute;
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unsigned long form;
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struct abbrev_attr *next;
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}
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abbrev_attr;
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typedef struct abbrev_entry
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{
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unsigned long entry;
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unsigned long tag;
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int children;
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struct abbrev_attr *first_attr;
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struct abbrev_attr *last_attr;
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struct abbrev_entry *next;
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}
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abbrev_entry;
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static abbrev_entry *first_abbrev = NULL;
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static abbrev_entry *last_abbrev = NULL;
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static void
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free_abbrevs (void)
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{
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abbrev_entry *abbrev;
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for (abbrev = first_abbrev; abbrev;)
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{
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abbrev_entry *next = abbrev->next;
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abbrev_attr *attr;
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for (attr = abbrev->first_attr; attr;)
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{
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abbrev_attr *next = attr->next;
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free (attr);
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attr = next;
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}
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free (abbrev);
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abbrev = next;
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}
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last_abbrev = first_abbrev = NULL;
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}
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static void
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add_abbrev (unsigned long number, unsigned long tag, int children)
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{
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abbrev_entry *entry;
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entry = malloc (sizeof (*entry));
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if (entry == NULL)
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/* ugg */
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return;
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entry->entry = number;
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entry->tag = tag;
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entry->children = children;
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entry->first_attr = NULL;
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entry->last_attr = NULL;
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entry->next = NULL;
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if (first_abbrev == NULL)
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first_abbrev = entry;
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else
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last_abbrev->next = entry;
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last_abbrev = entry;
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}
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static void
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add_abbrev_attr (unsigned long attribute, unsigned long form)
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{
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abbrev_attr *attr;
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attr = malloc (sizeof (*attr));
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if (attr == NULL)
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/* ugg */
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return;
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attr->attribute = attribute;
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attr->form = form;
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attr->next = NULL;
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if (last_abbrev->first_attr == NULL)
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last_abbrev->first_attr = attr;
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else
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last_abbrev->last_attr->next = attr;
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last_abbrev->last_attr = attr;
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}
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/* Processes the (partial) contents of a .debug_abbrev section.
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Returns NULL if the end of the section was encountered.
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Returns the address after the last byte read if the end of
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an abbreviation set was found. */
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static unsigned char *
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process_abbrev_section (unsigned char *start, unsigned char *end)
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{
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if (first_abbrev != NULL)
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return NULL;
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while (start < end)
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{
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unsigned int bytes_read;
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unsigned long entry;
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unsigned long tag;
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unsigned long attribute;
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int children;
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entry = read_leb128 (start, & bytes_read, 0);
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start += bytes_read;
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/* A single zero is supposed to end the section according
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to the standard. If there's more, then signal that to
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the caller. */
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if (entry == 0)
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return start == end ? NULL : start;
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tag = read_leb128 (start, & bytes_read, 0);
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start += bytes_read;
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children = *start++;
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add_abbrev (entry, tag, children);
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do
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{
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unsigned long form;
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attribute = read_leb128 (start, & bytes_read, 0);
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start += bytes_read;
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form = read_leb128 (start, & bytes_read, 0);
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start += bytes_read;
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if (attribute != 0)
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add_abbrev_attr (attribute, form);
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}
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while (attribute != 0);
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}
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return NULL;
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}
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static char *
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get_TAG_name (unsigned long tag)
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{
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switch (tag)
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{
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case DW_TAG_padding: return "DW_TAG_padding";
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case DW_TAG_array_type: return "DW_TAG_array_type";
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case DW_TAG_class_type: return "DW_TAG_class_type";
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case DW_TAG_entry_point: return "DW_TAG_entry_point";
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case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type";
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case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter";
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case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration";
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case DW_TAG_label: return "DW_TAG_label";
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case DW_TAG_lexical_block: return "DW_TAG_lexical_block";
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case DW_TAG_member: return "DW_TAG_member";
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case DW_TAG_pointer_type: return "DW_TAG_pointer_type";
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case DW_TAG_reference_type: return "DW_TAG_reference_type";
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case DW_TAG_compile_unit: return "DW_TAG_compile_unit";
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case DW_TAG_string_type: return "DW_TAG_string_type";
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case DW_TAG_structure_type: return "DW_TAG_structure_type";
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case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type";
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case DW_TAG_typedef: return "DW_TAG_typedef";
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case DW_TAG_union_type: return "DW_TAG_union_type";
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case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters";
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case DW_TAG_variant: return "DW_TAG_variant";
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case DW_TAG_common_block: return "DW_TAG_common_block";
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case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion";
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case DW_TAG_inheritance: return "DW_TAG_inheritance";
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case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine";
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case DW_TAG_module: return "DW_TAG_module";
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case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type";
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case DW_TAG_set_type: return "DW_TAG_set_type";
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case DW_TAG_subrange_type: return "DW_TAG_subrange_type";
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case DW_TAG_with_stmt: return "DW_TAG_with_stmt";
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case DW_TAG_access_declaration: return "DW_TAG_access_declaration";
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case DW_TAG_base_type: return "DW_TAG_base_type";
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case DW_TAG_catch_block: return "DW_TAG_catch_block";
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case DW_TAG_const_type: return "DW_TAG_const_type";
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case DW_TAG_constant: return "DW_TAG_constant";
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case DW_TAG_enumerator: return "DW_TAG_enumerator";
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case DW_TAG_file_type: return "DW_TAG_file_type";
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case DW_TAG_friend: return "DW_TAG_friend";
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case DW_TAG_namelist: return "DW_TAG_namelist";
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case DW_TAG_namelist_item: return "DW_TAG_namelist_item";
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case DW_TAG_packed_type: return "DW_TAG_packed_type";
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case DW_TAG_subprogram: return "DW_TAG_subprogram";
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case DW_TAG_template_type_param: return "DW_TAG_template_type_param";
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case DW_TAG_template_value_param: return "DW_TAG_template_value_param";
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case DW_TAG_thrown_type: return "DW_TAG_thrown_type";
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case DW_TAG_try_block: return "DW_TAG_try_block";
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case DW_TAG_variant_part: return "DW_TAG_variant_part";
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case DW_TAG_variable: return "DW_TAG_variable";
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case DW_TAG_volatile_type: return "DW_TAG_volatile_type";
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case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop";
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case DW_TAG_format_label: return "DW_TAG_format_label";
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case DW_TAG_function_template: return "DW_TAG_function_template";
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case DW_TAG_class_template: return "DW_TAG_class_template";
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/* DWARF 2.1 values. */
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case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure";
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case DW_TAG_restrict_type: return "DW_TAG_restrict_type";
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case DW_TAG_interface_type: return "DW_TAG_interface_type";
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case DW_TAG_namespace: return "DW_TAG_namespace";
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case DW_TAG_imported_module: return "DW_TAG_imported_module";
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case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type";
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case DW_TAG_partial_unit: return "DW_TAG_partial_unit";
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case DW_TAG_imported_unit: return "DW_TAG_imported_unit";
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/* UPC values. */
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case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type";
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case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type";
|
|
case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type";
|
|
default:
|
|
{
|
|
static char buffer[100];
|
|
|
|
snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
|
|
return buffer;
|
|
}
|
|
}
|
|
}
|
|
|
|
static char *
|
|
get_FORM_name (unsigned long form)
|
|
{
|
|
switch (form)
|
|
{
|
|
case DW_FORM_addr: return "DW_FORM_addr";
|
|
case DW_FORM_block2: return "DW_FORM_block2";
|
|
case DW_FORM_block4: return "DW_FORM_block4";
|
|
case DW_FORM_data2: return "DW_FORM_data2";
|
|
case DW_FORM_data4: return "DW_FORM_data4";
|
|
case DW_FORM_data8: return "DW_FORM_data8";
|
|
case DW_FORM_string: return "DW_FORM_string";
|
|
case DW_FORM_block: return "DW_FORM_block";
|
|
case DW_FORM_block1: return "DW_FORM_block1";
|
|
case DW_FORM_data1: return "DW_FORM_data1";
|
|
case DW_FORM_flag: return "DW_FORM_flag";
|
|
case DW_FORM_sdata: return "DW_FORM_sdata";
|
|
case DW_FORM_strp: return "DW_FORM_strp";
|
|
case DW_FORM_udata: return "DW_FORM_udata";
|
|
case DW_FORM_ref_addr: return "DW_FORM_ref_addr";
|
|
case DW_FORM_ref1: return "DW_FORM_ref1";
|
|
case DW_FORM_ref2: return "DW_FORM_ref2";
|
|
case DW_FORM_ref4: return "DW_FORM_ref4";
|
|
case DW_FORM_ref8: return "DW_FORM_ref8";
|
|
case DW_FORM_ref_udata: return "DW_FORM_ref_udata";
|
|
case DW_FORM_indirect: return "DW_FORM_indirect";
|
|
default:
|
|
{
|
|
static char buffer[100];
|
|
|
|
snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form);
|
|
return buffer;
|
|
}
|
|
}
|
|
}
|
|
|
|
static unsigned char *
|
|
display_block (unsigned char *data, unsigned long length)
|
|
{
|
|
printf (_(" %lu byte block: "), length);
|
|
|
|
while (length --)
|
|
printf ("%lx ", (unsigned long) byte_get (data++, 1));
|
|
|
|
return data;
|
|
}
|
|
|
|
static int
|
|
decode_location_expression (unsigned char * data,
|
|
unsigned int pointer_size,
|
|
unsigned long length,
|
|
unsigned long cu_offset)
|
|
{
|
|
unsigned op;
|
|
unsigned int bytes_read;
|
|
unsigned long uvalue;
|
|
unsigned char *end = data + length;
|
|
int need_frame_base = 0;
|
|
|
|
while (data < end)
|
|
{
|
|
op = *data++;
|
|
|
|
switch (op)
|
|
{
|
|
case DW_OP_addr:
|
|
printf ("DW_OP_addr: %lx",
|
|
(unsigned long) byte_get (data, pointer_size));
|
|
data += pointer_size;
|
|
break;
|
|
case DW_OP_deref:
|
|
printf ("DW_OP_deref");
|
|
break;
|
|
case DW_OP_const1u:
|
|
printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1));
|
|
break;
|
|
case DW_OP_const1s:
|
|
printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1));
|
|
break;
|
|
case DW_OP_const2u:
|
|
printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2));
|
|
data += 2;
|
|
break;
|
|
case DW_OP_const2s:
|
|
printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2));
|
|
data += 2;
|
|
break;
|
|
case DW_OP_const4u:
|
|
printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4));
|
|
data += 4;
|
|
break;
|
|
case DW_OP_const4s:
|
|
printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4));
|
|
data += 4;
|
|
break;
|
|
case DW_OP_const8u:
|
|
printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4),
|
|
(unsigned long) byte_get (data + 4, 4));
|
|
data += 8;
|
|
break;
|
|
case DW_OP_const8s:
|
|
printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4),
|
|
(long) byte_get (data + 4, 4));
|
|
data += 8;
|
|
break;
|
|
case DW_OP_constu:
|
|
printf ("DW_OP_constu: %lu", read_leb128 (data, &bytes_read, 0));
|
|
data += bytes_read;
|
|
break;
|
|
case DW_OP_consts:
|
|
printf ("DW_OP_consts: %ld", read_leb128 (data, &bytes_read, 1));
|
|
data += bytes_read;
|
|
break;
|
|
case DW_OP_dup:
|
|
printf ("DW_OP_dup");
|
|
break;
|
|
case DW_OP_drop:
|
|
printf ("DW_OP_drop");
|
|
break;
|
|
case DW_OP_over:
|
|
printf ("DW_OP_over");
|
|
break;
|
|
case DW_OP_pick:
|
|
printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1));
|
|
break;
|
|
case DW_OP_swap:
|
|
printf ("DW_OP_swap");
|
|
break;
|
|
case DW_OP_rot:
|
|
printf ("DW_OP_rot");
|
|
break;
|
|
case DW_OP_xderef:
|
|
printf ("DW_OP_xderef");
|
|
break;
|
|
case DW_OP_abs:
|
|
printf ("DW_OP_abs");
|
|
break;
|
|
case DW_OP_and:
|
|
printf ("DW_OP_and");
|
|
break;
|
|
case DW_OP_div:
|
|
printf ("DW_OP_div");
|
|
break;
|
|
case DW_OP_minus:
|
|
printf ("DW_OP_minus");
|
|
break;
|
|
case DW_OP_mod:
|
|
printf ("DW_OP_mod");
|
|
break;
|
|
case DW_OP_mul:
|
|
printf ("DW_OP_mul");
|
|
break;
|
|
case DW_OP_neg:
|
|
printf ("DW_OP_neg");
|
|
break;
|
|
case DW_OP_not:
|
|
printf ("DW_OP_not");
|
|
break;
|
|
case DW_OP_or:
|
|
printf ("DW_OP_or");
|
|
break;
|
|
case DW_OP_plus:
|
|
printf ("DW_OP_plus");
|
|
break;
|
|
case DW_OP_plus_uconst:
|
|
printf ("DW_OP_plus_uconst: %lu",
|
|
read_leb128 (data, &bytes_read, 0));
|
|
data += bytes_read;
|
|
break;
|
|
case DW_OP_shl:
|
|
printf ("DW_OP_shl");
|
|
break;
|
|
case DW_OP_shr:
|
|
printf ("DW_OP_shr");
|
|
break;
|
|
case DW_OP_shra:
|
|
printf ("DW_OP_shra");
|
|
break;
|
|
case DW_OP_xor:
|
|
printf ("DW_OP_xor");
|
|
break;
|
|
case DW_OP_bra:
|
|
printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2));
|
|
data += 2;
|
|
break;
|
|
case DW_OP_eq:
|
|
printf ("DW_OP_eq");
|
|
break;
|
|
case DW_OP_ge:
|
|
printf ("DW_OP_ge");
|
|
break;
|
|
case DW_OP_gt:
|
|
printf ("DW_OP_gt");
|
|
break;
|
|
case DW_OP_le:
|
|
printf ("DW_OP_le");
|
|
break;
|
|
case DW_OP_lt:
|
|
printf ("DW_OP_lt");
|
|
break;
|
|
case DW_OP_ne:
|
|
printf ("DW_OP_ne");
|
|
break;
|
|
case DW_OP_skip:
|
|
printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2));
|
|
data += 2;
|
|
break;
|
|
|
|
case DW_OP_lit0:
|
|
case DW_OP_lit1:
|
|
case DW_OP_lit2:
|
|
case DW_OP_lit3:
|
|
case DW_OP_lit4:
|
|
case DW_OP_lit5:
|
|
case DW_OP_lit6:
|
|
case DW_OP_lit7:
|
|
case DW_OP_lit8:
|
|
case DW_OP_lit9:
|
|
case DW_OP_lit10:
|
|
case DW_OP_lit11:
|
|
case DW_OP_lit12:
|
|
case DW_OP_lit13:
|
|
case DW_OP_lit14:
|
|
case DW_OP_lit15:
|
|
case DW_OP_lit16:
|
|
case DW_OP_lit17:
|
|
case DW_OP_lit18:
|
|
case DW_OP_lit19:
|
|
case DW_OP_lit20:
|
|
case DW_OP_lit21:
|
|
case DW_OP_lit22:
|
|
case DW_OP_lit23:
|
|
case DW_OP_lit24:
|
|
case DW_OP_lit25:
|
|
case DW_OP_lit26:
|
|
case DW_OP_lit27:
|
|
case DW_OP_lit28:
|
|
case DW_OP_lit29:
|
|
case DW_OP_lit30:
|
|
case DW_OP_lit31:
|
|
printf ("DW_OP_lit%d", op - DW_OP_lit0);
|
|
break;
|
|
|
|
case DW_OP_reg0:
|
|
case DW_OP_reg1:
|
|
case DW_OP_reg2:
|
|
case DW_OP_reg3:
|
|
case DW_OP_reg4:
|
|
case DW_OP_reg5:
|
|
case DW_OP_reg6:
|
|
case DW_OP_reg7:
|
|
case DW_OP_reg8:
|
|
case DW_OP_reg9:
|
|
case DW_OP_reg10:
|
|
case DW_OP_reg11:
|
|
case DW_OP_reg12:
|
|
case DW_OP_reg13:
|
|
case DW_OP_reg14:
|
|
case DW_OP_reg15:
|
|
case DW_OP_reg16:
|
|
case DW_OP_reg17:
|
|
case DW_OP_reg18:
|
|
case DW_OP_reg19:
|
|
case DW_OP_reg20:
|
|
case DW_OP_reg21:
|
|
case DW_OP_reg22:
|
|
case DW_OP_reg23:
|
|
case DW_OP_reg24:
|
|
case DW_OP_reg25:
|
|
case DW_OP_reg26:
|
|
case DW_OP_reg27:
|
|
case DW_OP_reg28:
|
|
case DW_OP_reg29:
|
|
case DW_OP_reg30:
|
|
case DW_OP_reg31:
|
|
printf ("DW_OP_reg%d", op - DW_OP_reg0);
|
|
break;
|
|
|
|
case DW_OP_breg0:
|
|
case DW_OP_breg1:
|
|
case DW_OP_breg2:
|
|
case DW_OP_breg3:
|
|
case DW_OP_breg4:
|
|
case DW_OP_breg5:
|
|
case DW_OP_breg6:
|
|
case DW_OP_breg7:
|
|
case DW_OP_breg8:
|
|
case DW_OP_breg9:
|
|
case DW_OP_breg10:
|
|
case DW_OP_breg11:
|
|
case DW_OP_breg12:
|
|
case DW_OP_breg13:
|
|
case DW_OP_breg14:
|
|
case DW_OP_breg15:
|
|
case DW_OP_breg16:
|
|
case DW_OP_breg17:
|
|
case DW_OP_breg18:
|
|
case DW_OP_breg19:
|
|
case DW_OP_breg20:
|
|
case DW_OP_breg21:
|
|
case DW_OP_breg22:
|
|
case DW_OP_breg23:
|
|
case DW_OP_breg24:
|
|
case DW_OP_breg25:
|
|
case DW_OP_breg26:
|
|
case DW_OP_breg27:
|
|
case DW_OP_breg28:
|
|
case DW_OP_breg29:
|
|
case DW_OP_breg30:
|
|
case DW_OP_breg31:
|
|
printf ("DW_OP_breg%d: %ld", op - DW_OP_breg0,
|
|
read_leb128 (data, &bytes_read, 1));
|
|
data += bytes_read;
|
|
break;
|
|
|
|
case DW_OP_regx:
|
|
printf ("DW_OP_regx: %lu", read_leb128 (data, &bytes_read, 0));
|
|
data += bytes_read;
|
|
break;
|
|
case DW_OP_fbreg:
|
|
need_frame_base = 1;
|
|
printf ("DW_OP_fbreg: %ld", read_leb128 (data, &bytes_read, 1));
|
|
data += bytes_read;
|
|
break;
|
|
case DW_OP_bregx:
|
|
uvalue = read_leb128 (data, &bytes_read, 0);
|
|
data += bytes_read;
|
|
printf ("DW_OP_bregx: %lu %ld", uvalue,
|
|
read_leb128 (data, &bytes_read, 1));
|
|
data += bytes_read;
|
|
break;
|
|
case DW_OP_piece:
|
|
printf ("DW_OP_piece: %lu", read_leb128 (data, &bytes_read, 0));
|
|
data += bytes_read;
|
|
break;
|
|
case DW_OP_deref_size:
|
|
printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1));
|
|
break;
|
|
case DW_OP_xderef_size:
|
|
printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1));
|
|
break;
|
|
case DW_OP_nop:
|
|
printf ("DW_OP_nop");
|
|
break;
|
|
|
|
/* DWARF 3 extensions. */
|
|
case DW_OP_push_object_address:
|
|
printf ("DW_OP_push_object_address");
|
|
break;
|
|
case DW_OP_call2:
|
|
/* XXX: Strictly speaking for 64-bit DWARF3 files
|
|
this ought to be an 8-byte wide computation. */
|
|
printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset);
|
|
data += 2;
|
|
break;
|
|
case DW_OP_call4:
|
|
/* XXX: Strictly speaking for 64-bit DWARF3 files
|
|
this ought to be an 8-byte wide computation. */
|
|
printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset);
|
|
data += 4;
|
|
break;
|
|
case DW_OP_call_ref:
|
|
printf ("DW_OP_call_ref");
|
|
break;
|
|
case DW_OP_form_tls_address:
|
|
printf ("DW_OP_form_tls_address");
|
|
break;
|
|
|
|
/* GNU extensions. */
|
|
case DW_OP_GNU_push_tls_address:
|
|
printf ("DW_OP_GNU_push_tls_address");
|
|
break;
|
|
|
|
default:
|
|
if (op >= DW_OP_lo_user
|
|
&& op <= DW_OP_hi_user)
|
|
printf (_("(User defined location op)"));
|
|
else
|
|
printf (_("(Unknown location op)"));
|
|
/* No way to tell where the next op is, so just bail. */
|
|
return need_frame_base;
|
|
}
|
|
|
|
/* Separate the ops. */
|
|
if (data < end)
|
|
printf ("; ");
|
|
}
|
|
|
|
return need_frame_base;
|
|
}
|
|
|
|
static unsigned char *
|
|
read_and_display_attr_value (unsigned long attribute,
|
|
unsigned long form,
|
|
unsigned char *data,
|
|
unsigned long cu_offset,
|
|
unsigned long pointer_size,
|
|
unsigned long offset_size,
|
|
int dwarf_version,
|
|
debug_info *debug_info_p,
|
|
int do_loc)
|
|
{
|
|
unsigned long uvalue = 0;
|
|
unsigned char *block_start = NULL;
|
|
unsigned int bytes_read;
|
|
|
|
switch (form)
|
|
{
|
|
default:
|
|
break;
|
|
|
|
case DW_FORM_ref_addr:
|
|
if (dwarf_version == 2)
|
|
{
|
|
uvalue = byte_get (data, pointer_size);
|
|
data += pointer_size;
|
|
}
|
|
else if (dwarf_version == 3)
|
|
{
|
|
uvalue = byte_get (data, offset_size);
|
|
data += offset_size;
|
|
}
|
|
else
|
|
{
|
|
error (_("Internal error: DWARF version is not 2 or 3.\n"));
|
|
}
|
|
break;
|
|
|
|
case DW_FORM_addr:
|
|
uvalue = byte_get (data, pointer_size);
|
|
data += pointer_size;
|
|
break;
|
|
|
|
case DW_FORM_strp:
|
|
uvalue = byte_get (data, offset_size);
|
|
data += offset_size;
|
|
break;
|
|
|
|
case DW_FORM_ref1:
|
|
case DW_FORM_flag:
|
|
case DW_FORM_data1:
|
|
uvalue = byte_get (data++, 1);
|
|
break;
|
|
|
|
case DW_FORM_ref2:
|
|
case DW_FORM_data2:
|
|
uvalue = byte_get (data, 2);
|
|
data += 2;
|
|
break;
|
|
|
|
case DW_FORM_ref4:
|
|
case DW_FORM_data4:
|
|
uvalue = byte_get (data, 4);
|
|
data += 4;
|
|
break;
|
|
|
|
case DW_FORM_sdata:
|
|
uvalue = read_leb128 (data, & bytes_read, 1);
|
|
data += bytes_read;
|
|
break;
|
|
|
|
case DW_FORM_ref_udata:
|
|
case DW_FORM_udata:
|
|
uvalue = read_leb128 (data, & bytes_read, 0);
|
|
data += bytes_read;
|
|
break;
|
|
|
|
case DW_FORM_indirect:
|
|
form = read_leb128 (data, & bytes_read, 0);
|
|
data += bytes_read;
|
|
if (!do_loc)
|
|
printf (" %s", get_FORM_name (form));
|
|
return read_and_display_attr_value (attribute, form, data,
|
|
cu_offset, pointer_size,
|
|
offset_size, dwarf_version,
|
|
debug_info_p, do_loc);
|
|
}
|
|
|
|
switch (form)
|
|
{
|
|
case DW_FORM_ref_addr:
|
|
if (!do_loc)
|
|
printf (" <#%lx>", uvalue);
|
|
break;
|
|
|
|
case DW_FORM_ref1:
|
|
case DW_FORM_ref2:
|
|
case DW_FORM_ref4:
|
|
case DW_FORM_ref_udata:
|
|
if (!do_loc)
|
|
printf (" <%lx>", uvalue + cu_offset);
|
|
break;
|
|
|
|
case DW_FORM_data4:
|
|
case DW_FORM_addr:
|
|
if (!do_loc)
|
|
printf (" %#lx", uvalue);
|
|
break;
|
|
|
|
case DW_FORM_flag:
|
|
case DW_FORM_data1:
|
|
case DW_FORM_data2:
|
|
case DW_FORM_sdata:
|
|
case DW_FORM_udata:
|
|
if (!do_loc)
|
|
printf (" %ld", uvalue);
|
|
break;
|
|
|
|
case DW_FORM_ref8:
|
|
case DW_FORM_data8:
|
|
if (!do_loc)
|
|
{
|
|
uvalue = byte_get (data, 4);
|
|
printf (" %lx", uvalue);
|
|
printf (" %lx", (unsigned long) byte_get (data + 4, 4));
|
|
}
|
|
if ((do_loc || do_debug_loc || do_debug_ranges)
|
|
&& num_debug_info_entries == 0)
|
|
{
|
|
if (sizeof (uvalue) == 8)
|
|
uvalue = byte_get (data, 8);
|
|
else
|
|
error (_("DW_FORM_data8 is unsupported when sizeof (unsigned long) != 8\n"));
|
|
}
|
|
data += 8;
|
|
break;
|
|
|
|
case DW_FORM_string:
|
|
if (!do_loc)
|
|
printf (" %s", data);
|
|
data += strlen ((char *) data) + 1;
|
|
break;
|
|
|
|
case DW_FORM_block:
|
|
uvalue = read_leb128 (data, & bytes_read, 0);
|
|
block_start = data + bytes_read;
|
|
if (do_loc)
|
|
data = block_start + uvalue;
|
|
else
|
|
data = display_block (block_start, uvalue);
|
|
break;
|
|
|
|
case DW_FORM_block1:
|
|
uvalue = byte_get (data, 1);
|
|
block_start = data + 1;
|
|
if (do_loc)
|
|
data = block_start + uvalue;
|
|
else
|
|
data = display_block (block_start, uvalue);
|
|
break;
|
|
|
|
case DW_FORM_block2:
|
|
uvalue = byte_get (data, 2);
|
|
block_start = data + 2;
|
|
if (do_loc)
|
|
data = block_start + uvalue;
|
|
else
|
|
data = display_block (block_start, uvalue);
|
|
break;
|
|
|
|
case DW_FORM_block4:
|
|
uvalue = byte_get (data, 4);
|
|
block_start = data + 4;
|
|
if (do_loc)
|
|
data = block_start + uvalue;
|
|
else
|
|
data = display_block (block_start, uvalue);
|
|
break;
|
|
|
|
case DW_FORM_strp:
|
|
if (!do_loc)
|
|
printf (_(" (indirect string, offset: 0x%lx): %s"),
|
|
uvalue, fetch_indirect_string (uvalue));
|
|
break;
|
|
|
|
case DW_FORM_indirect:
|
|
/* Handled above. */
|
|
break;
|
|
|
|
default:
|
|
warn (_("Unrecognized form: %lu\n"), form);
|
|
break;
|
|
}
|
|
|
|
/* For some attributes we can display further information. */
|
|
if ((do_loc || do_debug_loc || do_debug_ranges)
|
|
&& num_debug_info_entries == 0)
|
|
{
|
|
switch (attribute)
|
|
{
|
|
case DW_AT_frame_base:
|
|
have_frame_base = 1;
|
|
case DW_AT_location:
|
|
case DW_AT_data_member_location:
|
|
case DW_AT_vtable_elem_location:
|
|
case DW_AT_allocated:
|
|
case DW_AT_associated:
|
|
case DW_AT_data_location:
|
|
case DW_AT_stride:
|
|
case DW_AT_upper_bound:
|
|
case DW_AT_lower_bound:
|
|
if (form == DW_FORM_data4 || form == DW_FORM_data8)
|
|
{
|
|
/* Process location list. */
|
|
unsigned int max = debug_info_p->max_loc_offsets;
|
|
unsigned int num = debug_info_p->num_loc_offsets;
|
|
|
|
if (max == 0 || num >= max)
|
|
{
|
|
max += 1024;
|
|
debug_info_p->loc_offsets
|
|
= xcrealloc (debug_info_p->loc_offsets,
|
|
max, sizeof (*debug_info_p->loc_offsets));
|
|
debug_info_p->have_frame_base
|
|
= xcrealloc (debug_info_p->have_frame_base,
|
|
max, sizeof (*debug_info_p->have_frame_base));
|
|
debug_info_p->max_loc_offsets = max;
|
|
}
|
|
debug_info_p->loc_offsets [num] = uvalue;
|
|
debug_info_p->have_frame_base [num] = have_frame_base;
|
|
debug_info_p->num_loc_offsets++;
|
|
}
|
|
break;
|
|
|
|
case DW_AT_low_pc:
|
|
if (need_base_address)
|
|
debug_info_p->base_address = uvalue;
|
|
break;
|
|
|
|
case DW_AT_ranges:
|
|
if (form == DW_FORM_data4 || form == DW_FORM_data8)
|
|
{
|
|
/* Process range list. */
|
|
unsigned int max = debug_info_p->max_range_lists;
|
|
unsigned int num = debug_info_p->num_range_lists;
|
|
|
|
if (max == 0 || num >= max)
|
|
{
|
|
max += 1024;
|
|
debug_info_p->range_lists
|
|
= xcrealloc (debug_info_p->range_lists,
|
|
max, sizeof (*debug_info_p->range_lists));
|
|
debug_info_p->max_range_lists = max;
|
|
}
|
|
debug_info_p->range_lists [num] = uvalue;
|
|
debug_info_p->num_range_lists++;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (do_loc)
|
|
return data;
|
|
|
|
printf ("\t");
|
|
|
|
switch (attribute)
|
|
{
|
|
case DW_AT_inline:
|
|
switch (uvalue)
|
|
{
|
|
case DW_INL_not_inlined:
|
|
printf (_("(not inlined)"));
|
|
break;
|
|
case DW_INL_inlined:
|
|
printf (_("(inlined)"));
|
|
break;
|
|
case DW_INL_declared_not_inlined:
|
|
printf (_("(declared as inline but ignored)"));
|
|
break;
|
|
case DW_INL_declared_inlined:
|
|
printf (_("(declared as inline and inlined)"));
|
|
break;
|
|
default:
|
|
printf (_(" (Unknown inline attribute value: %lx)"), uvalue);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case DW_AT_language:
|
|
switch (uvalue)
|
|
{
|
|
/* Ordered by the numeric value of these constants. */
|
|
case DW_LANG_C89: printf ("(ANSI C)"); break;
|
|
case DW_LANG_C: printf ("(non-ANSI C)"); break;
|
|
case DW_LANG_Ada83: printf ("(Ada)"); break;
|
|
case DW_LANG_C_plus_plus: printf ("(C++)"); break;
|
|
case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
|
|
case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
|
|
case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
|
|
case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
|
|
case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
|
|
case DW_LANG_Modula2: printf ("(Modula 2)"); break;
|
|
/* DWARF 2.1 values. */
|
|
case DW_LANG_Java: printf ("(Java)"); break;
|
|
case DW_LANG_C99: printf ("(ANSI C99)"); break;
|
|
case DW_LANG_Ada95: printf ("(ADA 95)"); break;
|
|
case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
|
|
/* DWARF 3 values. */
|
|
case DW_LANG_PLI: printf ("(PLI)"); break;
|
|
case DW_LANG_ObjC: printf ("(Objective C)"); break;
|
|
case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break;
|
|
case DW_LANG_UPC: printf ("(Unified Parallel C)"); break;
|
|
case DW_LANG_D: printf ("(D)"); break;
|
|
/* MIPS extension. */
|
|
case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
|
|
/* UPC extension. */
|
|
case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
|
|
default:
|
|
if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user)
|
|
printf ("(implementation defined: %lx)", uvalue);
|
|
else
|
|
printf ("(Unknown: %lx)", uvalue);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case DW_AT_encoding:
|
|
switch (uvalue)
|
|
{
|
|
case DW_ATE_void: printf ("(void)"); break;
|
|
case DW_ATE_address: printf ("(machine address)"); break;
|
|
case DW_ATE_boolean: printf ("(boolean)"); break;
|
|
case DW_ATE_complex_float: printf ("(complex float)"); break;
|
|
case DW_ATE_float: printf ("(float)"); break;
|
|
case DW_ATE_signed: printf ("(signed)"); break;
|
|
case DW_ATE_signed_char: printf ("(signed char)"); break;
|
|
case DW_ATE_unsigned: printf ("(unsigned)"); break;
|
|
case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
|
|
/* DWARF 2.1 value. */
|
|
case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
|
|
case DW_ATE_decimal_float: printf ("(decimal float)"); break;
|
|
default:
|
|
if (uvalue >= DW_ATE_lo_user
|
|
&& uvalue <= DW_ATE_hi_user)
|
|
printf ("(user defined type)");
|
|
else
|
|
printf ("(unknown type)");
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case DW_AT_accessibility:
|
|
switch (uvalue)
|
|
{
|
|
case DW_ACCESS_public: printf ("(public)"); break;
|
|
case DW_ACCESS_protected: printf ("(protected)"); break;
|
|
case DW_ACCESS_private: printf ("(private)"); break;
|
|
default:
|
|
printf ("(unknown accessibility)");
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case DW_AT_visibility:
|
|
switch (uvalue)
|
|
{
|
|
case DW_VIS_local: printf ("(local)"); break;
|
|
case DW_VIS_exported: printf ("(exported)"); break;
|
|
case DW_VIS_qualified: printf ("(qualified)"); break;
|
|
default: printf ("(unknown visibility)"); break;
|
|
}
|
|
break;
|
|
|
|
case DW_AT_virtuality:
|
|
switch (uvalue)
|
|
{
|
|
case DW_VIRTUALITY_none: printf ("(none)"); break;
|
|
case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
|
|
case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
|
|
default: printf ("(unknown virtuality)"); break;
|
|
}
|
|
break;
|
|
|
|
case DW_AT_identifier_case:
|
|
switch (uvalue)
|
|
{
|
|
case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
|
|
case DW_ID_up_case: printf ("(up_case)"); break;
|
|
case DW_ID_down_case: printf ("(down_case)"); break;
|
|
case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
|
|
default: printf ("(unknown case)"); break;
|
|
}
|
|
break;
|
|
|
|
case DW_AT_calling_convention:
|
|
switch (uvalue)
|
|
{
|
|
case DW_CC_normal: printf ("(normal)"); break;
|
|
case DW_CC_program: printf ("(program)"); break;
|
|
case DW_CC_nocall: printf ("(nocall)"); break;
|
|
default:
|
|
if (uvalue >= DW_CC_lo_user
|
|
&& uvalue <= DW_CC_hi_user)
|
|
printf ("(user defined)");
|
|
else
|
|
printf ("(unknown convention)");
|
|
}
|
|
break;
|
|
|
|
case DW_AT_ordering:
|
|
switch (uvalue)
|
|
{
|
|
case -1: printf ("(undefined)"); break;
|
|
case 0: printf ("(row major)"); break;
|
|
case 1: printf ("(column major)"); break;
|
|
}
|
|
break;
|
|
|
|
case DW_AT_frame_base:
|
|
have_frame_base = 1;
|
|
case DW_AT_location:
|
|
case DW_AT_data_member_location:
|
|
case DW_AT_vtable_elem_location:
|
|
case DW_AT_allocated:
|
|
case DW_AT_associated:
|
|
case DW_AT_data_location:
|
|
case DW_AT_stride:
|
|
case DW_AT_upper_bound:
|
|
case DW_AT_lower_bound:
|
|
if (block_start)
|
|
{
|
|
int need_frame_base;
|
|
|
|
printf ("(");
|
|
need_frame_base = decode_location_expression (block_start,
|
|
pointer_size,
|
|
uvalue,
|
|
cu_offset);
|
|
printf (")");
|
|
if (need_frame_base && !have_frame_base)
|
|
printf (_(" [without DW_AT_frame_base]"));
|
|
}
|
|
else if (form == DW_FORM_data4 || form == DW_FORM_data8)
|
|
printf (_("(location list)"));
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return data;
|
|
}
|
|
|
|
static char *
|
|
get_AT_name (unsigned long attribute)
|
|
{
|
|
switch (attribute)
|
|
{
|
|
case DW_AT_sibling: return "DW_AT_sibling";
|
|
case DW_AT_location: return "DW_AT_location";
|
|
case DW_AT_name: return "DW_AT_name";
|
|
case DW_AT_ordering: return "DW_AT_ordering";
|
|
case DW_AT_subscr_data: return "DW_AT_subscr_data";
|
|
case DW_AT_byte_size: return "DW_AT_byte_size";
|
|
case DW_AT_bit_offset: return "DW_AT_bit_offset";
|
|
case DW_AT_bit_size: return "DW_AT_bit_size";
|
|
case DW_AT_element_list: return "DW_AT_element_list";
|
|
case DW_AT_stmt_list: return "DW_AT_stmt_list";
|
|
case DW_AT_low_pc: return "DW_AT_low_pc";
|
|
case DW_AT_high_pc: return "DW_AT_high_pc";
|
|
case DW_AT_language: return "DW_AT_language";
|
|
case DW_AT_member: return "DW_AT_member";
|
|
case DW_AT_discr: return "DW_AT_discr";
|
|
case DW_AT_discr_value: return "DW_AT_discr_value";
|
|
case DW_AT_visibility: return "DW_AT_visibility";
|
|
case DW_AT_import: return "DW_AT_import";
|
|
case DW_AT_string_length: return "DW_AT_string_length";
|
|
case DW_AT_common_reference: return "DW_AT_common_reference";
|
|
case DW_AT_comp_dir: return "DW_AT_comp_dir";
|
|
case DW_AT_const_value: return "DW_AT_const_value";
|
|
case DW_AT_containing_type: return "DW_AT_containing_type";
|
|
case DW_AT_default_value: return "DW_AT_default_value";
|
|
case DW_AT_inline: return "DW_AT_inline";
|
|
case DW_AT_is_optional: return "DW_AT_is_optional";
|
|
case DW_AT_lower_bound: return "DW_AT_lower_bound";
|
|
case DW_AT_producer: return "DW_AT_producer";
|
|
case DW_AT_prototyped: return "DW_AT_prototyped";
|
|
case DW_AT_return_addr: return "DW_AT_return_addr";
|
|
case DW_AT_start_scope: return "DW_AT_start_scope";
|
|
case DW_AT_stride_size: return "DW_AT_stride_size";
|
|
case DW_AT_upper_bound: return "DW_AT_upper_bound";
|
|
case DW_AT_abstract_origin: return "DW_AT_abstract_origin";
|
|
case DW_AT_accessibility: return "DW_AT_accessibility";
|
|
case DW_AT_address_class: return "DW_AT_address_class";
|
|
case DW_AT_artificial: return "DW_AT_artificial";
|
|
case DW_AT_base_types: return "DW_AT_base_types";
|
|
case DW_AT_calling_convention: return "DW_AT_calling_convention";
|
|
case DW_AT_count: return "DW_AT_count";
|
|
case DW_AT_data_member_location: return "DW_AT_data_member_location";
|
|
case DW_AT_decl_column: return "DW_AT_decl_column";
|
|
case DW_AT_decl_file: return "DW_AT_decl_file";
|
|
case DW_AT_decl_line: return "DW_AT_decl_line";
|
|
case DW_AT_declaration: return "DW_AT_declaration";
|
|
case DW_AT_discr_list: return "DW_AT_discr_list";
|
|
case DW_AT_encoding: return "DW_AT_encoding";
|
|
case DW_AT_external: return "DW_AT_external";
|
|
case DW_AT_frame_base: return "DW_AT_frame_base";
|
|
case DW_AT_friend: return "DW_AT_friend";
|
|
case DW_AT_identifier_case: return "DW_AT_identifier_case";
|
|
case DW_AT_macro_info: return "DW_AT_macro_info";
|
|
case DW_AT_namelist_items: return "DW_AT_namelist_items";
|
|
case DW_AT_priority: return "DW_AT_priority";
|
|
case DW_AT_segment: return "DW_AT_segment";
|
|
case DW_AT_specification: return "DW_AT_specification";
|
|
case DW_AT_static_link: return "DW_AT_static_link";
|
|
case DW_AT_type: return "DW_AT_type";
|
|
case DW_AT_use_location: return "DW_AT_use_location";
|
|
case DW_AT_variable_parameter: return "DW_AT_variable_parameter";
|
|
case DW_AT_virtuality: return "DW_AT_virtuality";
|
|
case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location";
|
|
/* DWARF 2.1 values. */
|
|
case DW_AT_allocated: return "DW_AT_allocated";
|
|
case DW_AT_associated: return "DW_AT_associated";
|
|
case DW_AT_data_location: return "DW_AT_data_location";
|
|
case DW_AT_stride: return "DW_AT_stride";
|
|
case DW_AT_entry_pc: return "DW_AT_entry_pc";
|
|
case DW_AT_use_UTF8: return "DW_AT_use_UTF8";
|
|
case DW_AT_extension: return "DW_AT_extension";
|
|
case DW_AT_ranges: return "DW_AT_ranges";
|
|
case DW_AT_trampoline: return "DW_AT_trampoline";
|
|
case DW_AT_call_column: return "DW_AT_call_column";
|
|
case DW_AT_call_file: return "DW_AT_call_file";
|
|
case DW_AT_call_line: return "DW_AT_call_line";
|
|
/* SGI/MIPS extensions. */
|
|
case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde";
|
|
case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
|
|
case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
|
|
case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
|
|
case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
|
|
case DW_AT_MIPS_software_pipeline_depth:
|
|
return "DW_AT_MIPS_software_pipeline_depth";
|
|
case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name";
|
|
case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride";
|
|
case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name";
|
|
case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin";
|
|
case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines";
|
|
/* GNU extensions. */
|
|
case DW_AT_sf_names: return "DW_AT_sf_names";
|
|
case DW_AT_src_info: return "DW_AT_src_info";
|
|
case DW_AT_mac_info: return "DW_AT_mac_info";
|
|
case DW_AT_src_coords: return "DW_AT_src_coords";
|
|
case DW_AT_body_begin: return "DW_AT_body_begin";
|
|
case DW_AT_body_end: return "DW_AT_body_end";
|
|
case DW_AT_GNU_vector: return "DW_AT_GNU_vector";
|
|
/* UPC extension. */
|
|
case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled";
|
|
default:
|
|
{
|
|
static char buffer[100];
|
|
|
|
snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"),
|
|
attribute);
|
|
return buffer;
|
|
}
|
|
}
|
|
}
|
|
|
|
static unsigned char *
|
|
read_and_display_attr (unsigned long attribute,
|
|
unsigned long form,
|
|
unsigned char *data,
|
|
unsigned long cu_offset,
|
|
unsigned long pointer_size,
|
|
unsigned long offset_size,
|
|
int dwarf_version,
|
|
debug_info *debug_info_p,
|
|
int do_loc)
|
|
{
|
|
if (!do_loc)
|
|
printf (" %-18s:", get_AT_name (attribute));
|
|
data = read_and_display_attr_value (attribute, form, data, cu_offset,
|
|
pointer_size, offset_size,
|
|
dwarf_version, debug_info_p,
|
|
do_loc);
|
|
if (!do_loc)
|
|
printf ("\n");
|
|
return data;
|
|
}
|
|
|
|
|
|
/* Process the contents of a .debug_info section. If do_loc is non-zero
|
|
then we are scanning for location lists and we do not want to display
|
|
anything to the user. */
|
|
|
|
static int
|
|
process_debug_info (struct dwarf_section *section, void *file,
|
|
int do_loc)
|
|
{
|
|
unsigned char *start = section->start;
|
|
unsigned char *end = start + section->size;
|
|
unsigned char *section_begin;
|
|
unsigned int unit;
|
|
unsigned int num_units = 0;
|
|
|
|
if ((do_loc || do_debug_loc || do_debug_ranges)
|
|
&& num_debug_info_entries == 0)
|
|
{
|
|
unsigned long length;
|
|
|
|
/* First scan the section to get the number of comp units. */
|
|
for (section_begin = start, num_units = 0; section_begin < end;
|
|
num_units ++)
|
|
{
|
|
/* Read the first 4 bytes. For a 32-bit DWARF section, this
|
|
will be the length. For a 64-bit DWARF section, it'll be
|
|
the escape code 0xffffffff followed by an 8 byte length. */
|
|
length = byte_get (section_begin, 4);
|
|
|
|
if (length == 0xffffffff)
|
|
{
|
|
length = byte_get (section_begin + 4, 8);
|
|
section_begin += length + 12;
|
|
}
|
|
else
|
|
section_begin += length + 4;
|
|
}
|
|
|
|
if (num_units == 0)
|
|
{
|
|
error (_("No comp units in %s section ?"), section->name);
|
|
return 0;
|
|
}
|
|
|
|
/* Then allocate an array to hold the information. */
|
|
debug_information = cmalloc (num_units,
|
|
sizeof (* debug_information));
|
|
if (debug_information == NULL)
|
|
{
|
|
error (_("Not enough memory for a debug info array of %u entries"),
|
|
num_units);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!do_loc)
|
|
{
|
|
printf (_("The section %s contains:\n\n"), section->name);
|
|
|
|
load_debug_section (str, file);
|
|
}
|
|
|
|
load_debug_section (abbrev, file);
|
|
if (debug_displays [abbrev].section.start == NULL)
|
|
{
|
|
warn (_("Unable to locate %s section!\n"),
|
|
debug_displays [abbrev].section.name);
|
|
return 0;
|
|
}
|
|
|
|
for (section_begin = start, unit = 0; start < end; unit++)
|
|
{
|
|
DWARF2_Internal_CompUnit compunit;
|
|
unsigned char *hdrptr;
|
|
unsigned char *cu_abbrev_offset_ptr;
|
|
unsigned char *tags;
|
|
int level;
|
|
unsigned long cu_offset;
|
|
int offset_size;
|
|
int initial_length_size;
|
|
|
|
hdrptr = start;
|
|
|
|
compunit.cu_length = byte_get (hdrptr, 4);
|
|
hdrptr += 4;
|
|
|
|
if (compunit.cu_length == 0xffffffff)
|
|
{
|
|
compunit.cu_length = byte_get (hdrptr, 8);
|
|
hdrptr += 8;
|
|
offset_size = 8;
|
|
initial_length_size = 12;
|
|
}
|
|
else
|
|
{
|
|
offset_size = 4;
|
|
initial_length_size = 4;
|
|
}
|
|
|
|
compunit.cu_version = byte_get (hdrptr, 2);
|
|
hdrptr += 2;
|
|
|
|
cu_offset = start - section_begin;
|
|
|
|
cu_abbrev_offset_ptr = hdrptr;
|
|
compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size);
|
|
hdrptr += offset_size;
|
|
|
|
compunit.cu_pointer_size = byte_get (hdrptr, 1);
|
|
hdrptr += 1;
|
|
if ((do_loc || do_debug_loc || do_debug_ranges)
|
|
&& num_debug_info_entries == 0)
|
|
{
|
|
debug_information [unit].cu_offset = cu_offset;
|
|
debug_information [unit].pointer_size
|
|
= compunit.cu_pointer_size;
|
|
debug_information [unit].base_address = 0;
|
|
debug_information [unit].loc_offsets = NULL;
|
|
debug_information [unit].have_frame_base = NULL;
|
|
debug_information [unit].max_loc_offsets = 0;
|
|
debug_information [unit].num_loc_offsets = 0;
|
|
debug_information [unit].range_lists = NULL;
|
|
debug_information [unit].max_range_lists= 0;
|
|
debug_information [unit].num_range_lists = 0;
|
|
}
|
|
|
|
if (!do_loc)
|
|
{
|
|
printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset);
|
|
printf (_(" Length: %ld\n"), compunit.cu_length);
|
|
printf (_(" Version: %d\n"), compunit.cu_version);
|
|
printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
|
|
printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
|
|
}
|
|
|
|
if (cu_offset + compunit.cu_length + initial_length_size
|
|
> section->size)
|
|
{
|
|
warn (_("Debug info is corrupted, length is invalid (section is %lu bytes)\n"),
|
|
(unsigned long)section->size);
|
|
break;
|
|
}
|
|
tags = hdrptr;
|
|
start += compunit.cu_length + initial_length_size;
|
|
|
|
if (compunit.cu_version != 2 && compunit.cu_version != 3)
|
|
{
|
|
warn (_("Only version 2 and 3 DWARF debug information is currently supported.\n"));
|
|
continue;
|
|
}
|
|
|
|
free_abbrevs ();
|
|
|
|
/* Process the abbrevs used by this compilation unit. DWARF
|
|
sections under Mach-O have non-zero addresses. */
|
|
if (compunit.cu_abbrev_offset >= debug_displays [abbrev].section.size)
|
|
warn (_("Debug info is corrupted, abbrev offset is invalid (section is %lu bytes)\n"),
|
|
(unsigned long)debug_displays [abbrev].section.size);
|
|
else
|
|
process_abbrev_section
|
|
((unsigned char *) debug_displays [abbrev].section.start
|
|
+ compunit.cu_abbrev_offset - debug_displays [abbrev].section.address,
|
|
(unsigned char *) debug_displays [abbrev].section.start
|
|
+ debug_displays [abbrev].section.size);
|
|
|
|
level = 0;
|
|
while (tags < start)
|
|
{
|
|
unsigned int bytes_read;
|
|
unsigned long abbrev_number;
|
|
abbrev_entry *entry;
|
|
abbrev_attr *attr;
|
|
|
|
abbrev_number = read_leb128 (tags, & bytes_read, 0);
|
|
tags += bytes_read;
|
|
|
|
/* A null DIE marks the end of a list of children. */
|
|
if (abbrev_number == 0)
|
|
{
|
|
--level;
|
|
continue;
|
|
}
|
|
|
|
if (!do_loc)
|
|
printf (_(" <%d><%lx>: Abbrev Number: %lu"),
|
|
level,
|
|
(unsigned long) (tags - section_begin
|
|
- bytes_read),
|
|
abbrev_number);
|
|
|
|
/* Scan through the abbreviation list until we reach the
|
|
correct entry. */
|
|
for (entry = first_abbrev;
|
|
entry && entry->entry != abbrev_number;
|
|
entry = entry->next)
|
|
continue;
|
|
|
|
if (entry == NULL)
|
|
{
|
|
if (!do_loc)
|
|
{
|
|
printf ("\n");
|
|
fflush (stdout);
|
|
}
|
|
warn (_("Unable to locate entry %lu in the abbreviation table\n"),
|
|
abbrev_number);
|
|
return 0;
|
|
}
|
|
|
|
if (!do_loc)
|
|
printf (_(" (%s)\n"), get_TAG_name (entry->tag));
|
|
|
|
switch (entry->tag)
|
|
{
|
|
default:
|
|
need_base_address = 0;
|
|
break;
|
|
case DW_TAG_compile_unit:
|
|
need_base_address = 1;
|
|
break;
|
|
case DW_TAG_entry_point:
|
|
case DW_TAG_subprogram:
|
|
need_base_address = 0;
|
|
/* Assuming that there is no DW_AT_frame_base. */
|
|
have_frame_base = 0;
|
|
break;
|
|
}
|
|
|
|
for (attr = entry->first_attr; attr; attr = attr->next)
|
|
{
|
|
if (! do_loc)
|
|
/* Show the offset from where the tag was extracted. */
|
|
printf (" <%2lx>", (unsigned long)(tags - section_begin));
|
|
|
|
tags = read_and_display_attr (attr->attribute,
|
|
attr->form,
|
|
tags, cu_offset,
|
|
compunit.cu_pointer_size,
|
|
offset_size,
|
|
compunit.cu_version,
|
|
&debug_information [unit],
|
|
do_loc);
|
|
}
|
|
|
|
if (entry->children)
|
|
++level;
|
|
}
|
|
}
|
|
|
|
/* Set num_debug_info_entries here so that it can be used to check if
|
|
we need to process .debug_loc and .debug_ranges sections. */
|
|
if ((do_loc || do_debug_loc || do_debug_ranges)
|
|
&& num_debug_info_entries == 0)
|
|
num_debug_info_entries = num_units;
|
|
|
|
if (!do_loc)
|
|
{
|
|
printf ("\n");
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Locate and scan the .debug_info section in the file and record the pointer
|
|
sizes and offsets for the compilation units in it. Usually an executable
|
|
will have just one pointer size, but this is not guaranteed, and so we try
|
|
not to make any assumptions. Returns zero upon failure, or the number of
|
|
compilation units upon success. */
|
|
|
|
static unsigned int
|
|
load_debug_info (void * file)
|
|
{
|
|
/* Reset the last pointer size so that we can issue correct error
|
|
messages if we are displaying the contents of more than one section. */
|
|
last_pointer_size = 0;
|
|
warned_about_missing_comp_units = FALSE;
|
|
|
|
/* If we already have the information there is nothing else to do. */
|
|
if (num_debug_info_entries > 0)
|
|
return num_debug_info_entries;
|
|
|
|
if (load_debug_section (info, file)
|
|
&& process_debug_info (&debug_displays [info].section, file, 1))
|
|
return num_debug_info_entries;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
display_debug_lines (struct dwarf_section *section, void *file)
|
|
{
|
|
unsigned char *start = section->start;
|
|
unsigned char *data = start;
|
|
unsigned char *end = start + section->size;
|
|
|
|
printf (_("\nDump of debug contents of section %s:\n\n"),
|
|
section->name);
|
|
|
|
load_debug_info (file);
|
|
|
|
while (data < end)
|
|
{
|
|
DWARF2_Internal_LineInfo info;
|
|
unsigned char *standard_opcodes;
|
|
unsigned char *end_of_sequence;
|
|
unsigned char *hdrptr;
|
|
int initial_length_size;
|
|
int offset_size;
|
|
int i;
|
|
|
|
hdrptr = data;
|
|
|
|
/* Check the length of the block. */
|
|
info.li_length = byte_get (hdrptr, 4);
|
|
hdrptr += 4;
|
|
|
|
if (info.li_length == 0xffffffff)
|
|
{
|
|
/* This section is 64-bit DWARF 3. */
|
|
info.li_length = byte_get (hdrptr, 8);
|
|
hdrptr += 8;
|
|
offset_size = 8;
|
|
initial_length_size = 12;
|
|
}
|
|
else
|
|
{
|
|
offset_size = 4;
|
|
initial_length_size = 4;
|
|
}
|
|
|
|
if (info.li_length + initial_length_size > section->size)
|
|
{
|
|
warn
|
|
(_("The line info appears to be corrupt - the section is too small\n"));
|
|
return 0;
|
|
}
|
|
|
|
/* Check its version number. */
|
|
info.li_version = byte_get (hdrptr, 2);
|
|
hdrptr += 2;
|
|
if (info.li_version != 2 && info.li_version != 3)
|
|
{
|
|
warn (_("Only DWARF version 2 and 3 line info is currently supported.\n"));
|
|
return 0;
|
|
}
|
|
|
|
info.li_prologue_length = byte_get (hdrptr, offset_size);
|
|
hdrptr += offset_size;
|
|
info.li_min_insn_length = byte_get (hdrptr, 1);
|
|
hdrptr++;
|
|
info.li_default_is_stmt = byte_get (hdrptr, 1);
|
|
hdrptr++;
|
|
info.li_line_base = byte_get (hdrptr, 1);
|
|
hdrptr++;
|
|
info.li_line_range = byte_get (hdrptr, 1);
|
|
hdrptr++;
|
|
info.li_opcode_base = byte_get (hdrptr, 1);
|
|
hdrptr++;
|
|
|
|
/* Sign extend the line base field. */
|
|
info.li_line_base <<= 24;
|
|
info.li_line_base >>= 24;
|
|
|
|
printf (_(" Length: %ld\n"), info.li_length);
|
|
printf (_(" DWARF Version: %d\n"), info.li_version);
|
|
printf (_(" Prologue Length: %d\n"), info.li_prologue_length);
|
|
printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length);
|
|
printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt);
|
|
printf (_(" Line Base: %d\n"), info.li_line_base);
|
|
printf (_(" Line Range: %d\n"), info.li_line_range);
|
|
printf (_(" Opcode Base: %d\n"), info.li_opcode_base);
|
|
|
|
end_of_sequence = data + info.li_length + initial_length_size;
|
|
|
|
reset_state_machine (info.li_default_is_stmt);
|
|
|
|
/* Display the contents of the Opcodes table. */
|
|
standard_opcodes = hdrptr;
|
|
|
|
printf (_("\n Opcodes:\n"));
|
|
|
|
for (i = 1; i < info.li_opcode_base; i++)
|
|
printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
|
|
|
|
/* Display the contents of the Directory table. */
|
|
data = standard_opcodes + info.li_opcode_base - 1;
|
|
|
|
if (*data == 0)
|
|
printf (_("\n The Directory Table is empty.\n"));
|
|
else
|
|
{
|
|
printf (_("\n The Directory Table:\n"));
|
|
|
|
while (*data != 0)
|
|
{
|
|
printf (_(" %s\n"), data);
|
|
|
|
data += strlen ((char *) data) + 1;
|
|
}
|
|
}
|
|
|
|
/* Skip the NUL at the end of the table. */
|
|
data++;
|
|
|
|
/* Display the contents of the File Name table. */
|
|
if (*data == 0)
|
|
printf (_("\n The File Name Table is empty.\n"));
|
|
else
|
|
{
|
|
printf (_("\n The File Name Table:\n"));
|
|
printf (_(" Entry\tDir\tTime\tSize\tName\n"));
|
|
|
|
while (*data != 0)
|
|
{
|
|
unsigned char *name;
|
|
unsigned int bytes_read;
|
|
|
|
printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
|
|
name = data;
|
|
|
|
data += strlen ((char *) data) + 1;
|
|
|
|
printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
|
|
data += bytes_read;
|
|
printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
|
|
data += bytes_read;
|
|
printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
|
|
data += bytes_read;
|
|
printf (_("%s\n"), name);
|
|
}
|
|
}
|
|
|
|
/* Skip the NUL at the end of the table. */
|
|
data++;
|
|
|
|
/* Now display the statements. */
|
|
printf (_("\n Line Number Statements:\n"));
|
|
|
|
while (data < end_of_sequence)
|
|
{
|
|
unsigned char op_code;
|
|
int adv;
|
|
unsigned long int uladv;
|
|
unsigned int bytes_read;
|
|
|
|
op_code = *data++;
|
|
|
|
if (op_code >= info.li_opcode_base)
|
|
{
|
|
op_code -= info.li_opcode_base;
|
|
uladv = (op_code / info.li_line_range) * info.li_min_insn_length;
|
|
state_machine_regs.address += uladv;
|
|
printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"),
|
|
op_code, uladv, state_machine_regs.address);
|
|
adv = (op_code % info.li_line_range) + info.li_line_base;
|
|
state_machine_regs.line += adv;
|
|
printf (_(" and Line by %d to %d\n"),
|
|
adv, state_machine_regs.line);
|
|
}
|
|
else switch (op_code)
|
|
{
|
|
case DW_LNS_extended_op:
|
|
data += process_extended_line_op (data, info.li_default_is_stmt);
|
|
break;
|
|
|
|
case DW_LNS_copy:
|
|
printf (_(" Copy\n"));
|
|
break;
|
|
|
|
case DW_LNS_advance_pc:
|
|
uladv = read_leb128 (data, & bytes_read, 0);
|
|
uladv *= info.li_min_insn_length;
|
|
data += bytes_read;
|
|
state_machine_regs.address += uladv;
|
|
printf (_(" Advance PC by %lu to 0x%lx\n"), uladv,
|
|
state_machine_regs.address);
|
|
break;
|
|
|
|
case DW_LNS_advance_line:
|
|
adv = read_leb128 (data, & bytes_read, 1);
|
|
data += bytes_read;
|
|
state_machine_regs.line += adv;
|
|
printf (_(" Advance Line by %d to %d\n"), adv,
|
|
state_machine_regs.line);
|
|
break;
|
|
|
|
case DW_LNS_set_file:
|
|
adv = read_leb128 (data, & bytes_read, 0);
|
|
data += bytes_read;
|
|
printf (_(" Set File Name to entry %d in the File Name Table\n"),
|
|
adv);
|
|
state_machine_regs.file = adv;
|
|
break;
|
|
|
|
case DW_LNS_set_column:
|
|
uladv = read_leb128 (data, & bytes_read, 0);
|
|
data += bytes_read;
|
|
printf (_(" Set column to %lu\n"), uladv);
|
|
state_machine_regs.column = uladv;
|
|
break;
|
|
|
|
case DW_LNS_negate_stmt:
|
|
adv = state_machine_regs.is_stmt;
|
|
adv = ! adv;
|
|
printf (_(" Set is_stmt to %d\n"), adv);
|
|
state_machine_regs.is_stmt = adv;
|
|
break;
|
|
|
|
case DW_LNS_set_basic_block:
|
|
printf (_(" Set basic block\n"));
|
|
state_machine_regs.basic_block = 1;
|
|
break;
|
|
|
|
case DW_LNS_const_add_pc:
|
|
uladv = (((255 - info.li_opcode_base) / info.li_line_range)
|
|
* info.li_min_insn_length);
|
|
state_machine_regs.address += uladv;
|
|
printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv,
|
|
state_machine_regs.address);
|
|
break;
|
|
|
|
case DW_LNS_fixed_advance_pc:
|
|
uladv = byte_get (data, 2);
|
|
data += 2;
|
|
state_machine_regs.address += uladv;
|
|
printf (_(" Advance PC by fixed size amount %lu to 0x%lx\n"),
|
|
uladv, state_machine_regs.address);
|
|
break;
|
|
|
|
case DW_LNS_set_prologue_end:
|
|
printf (_(" Set prologue_end to true\n"));
|
|
break;
|
|
|
|
case DW_LNS_set_epilogue_begin:
|
|
printf (_(" Set epilogue_begin to true\n"));
|
|
break;
|
|
|
|
case DW_LNS_set_isa:
|
|
uladv = read_leb128 (data, & bytes_read, 0);
|
|
data += bytes_read;
|
|
printf (_(" Set ISA to %lu\n"), uladv);
|
|
break;
|
|
|
|
default:
|
|
printf (_(" Unknown opcode %d with operands: "), op_code);
|
|
|
|
for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
|
|
{
|
|
printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0),
|
|
i == 1 ? "" : ", ");
|
|
data += bytes_read;
|
|
}
|
|
putchar ('\n');
|
|
break;
|
|
}
|
|
}
|
|
putchar ('\n');
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
display_debug_pubnames (struct dwarf_section *section,
|
|
void *file ATTRIBUTE_UNUSED)
|
|
{
|
|
DWARF2_Internal_PubNames pubnames;
|
|
unsigned char *start = section->start;
|
|
unsigned char *end = start + section->size;
|
|
|
|
printf (_("Contents of the %s section:\n\n"), section->name);
|
|
|
|
while (start < end)
|
|
{
|
|
unsigned char *data;
|
|
unsigned long offset;
|
|
int offset_size, initial_length_size;
|
|
|
|
data = start;
|
|
|
|
pubnames.pn_length = byte_get (data, 4);
|
|
data += 4;
|
|
if (pubnames.pn_length == 0xffffffff)
|
|
{
|
|
pubnames.pn_length = byte_get (data, 8);
|
|
data += 8;
|
|
offset_size = 8;
|
|
initial_length_size = 12;
|
|
}
|
|
else
|
|
{
|
|
offset_size = 4;
|
|
initial_length_size = 4;
|
|
}
|
|
|
|
pubnames.pn_version = byte_get (data, 2);
|
|
data += 2;
|
|
pubnames.pn_offset = byte_get (data, offset_size);
|
|
data += offset_size;
|
|
pubnames.pn_size = byte_get (data, offset_size);
|
|
data += offset_size;
|
|
|
|
start += pubnames.pn_length + initial_length_size;
|
|
|
|
if (pubnames.pn_version != 2 && pubnames.pn_version != 3)
|
|
{
|
|
static int warned = 0;
|
|
|
|
if (! warned)
|
|
{
|
|
warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
|
|
warned = 1;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
printf (_(" Length: %ld\n"),
|
|
pubnames.pn_length);
|
|
printf (_(" Version: %d\n"),
|
|
pubnames.pn_version);
|
|
printf (_(" Offset into .debug_info section: %ld\n"),
|
|
pubnames.pn_offset);
|
|
printf (_(" Size of area in .debug_info section: %ld\n"),
|
|
pubnames.pn_size);
|
|
|
|
printf (_("\n Offset\tName\n"));
|
|
|
|
do
|
|
{
|
|
offset = byte_get (data, offset_size);
|
|
|
|
if (offset != 0)
|
|
{
|
|
data += offset_size;
|
|
printf (" %-6ld\t\t%s\n", offset, data);
|
|
data += strlen ((char *) data) + 1;
|
|
}
|
|
}
|
|
while (offset != 0);
|
|
}
|
|
|
|
printf ("\n");
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
display_debug_macinfo (struct dwarf_section *section,
|
|
void *file ATTRIBUTE_UNUSED)
|
|
{
|
|
unsigned char *start = section->start;
|
|
unsigned char *end = start + section->size;
|
|
unsigned char *curr = start;
|
|
unsigned int bytes_read;
|
|
enum dwarf_macinfo_record_type op;
|
|
|
|
printf (_("Contents of the %s section:\n\n"), section->name);
|
|
|
|
while (curr < end)
|
|
{
|
|
unsigned int lineno;
|
|
const char *string;
|
|
|
|
op = *curr;
|
|
curr++;
|
|
|
|
switch (op)
|
|
{
|
|
case DW_MACINFO_start_file:
|
|
{
|
|
unsigned int filenum;
|
|
|
|
lineno = read_leb128 (curr, & bytes_read, 0);
|
|
curr += bytes_read;
|
|
filenum = read_leb128 (curr, & bytes_read, 0);
|
|
curr += bytes_read;
|
|
|
|
printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
|
|
lineno, filenum);
|
|
}
|
|
break;
|
|
|
|
case DW_MACINFO_end_file:
|
|
printf (_(" DW_MACINFO_end_file\n"));
|
|
break;
|
|
|
|
case DW_MACINFO_define:
|
|
lineno = read_leb128 (curr, & bytes_read, 0);
|
|
curr += bytes_read;
|
|
string = (char *) curr;
|
|
curr += strlen (string) + 1;
|
|
printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
|
|
lineno, string);
|
|
break;
|
|
|
|
case DW_MACINFO_undef:
|
|
lineno = read_leb128 (curr, & bytes_read, 0);
|
|
curr += bytes_read;
|
|
string = (char *) curr;
|
|
curr += strlen (string) + 1;
|
|
printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
|
|
lineno, string);
|
|
break;
|
|
|
|
case DW_MACINFO_vendor_ext:
|
|
{
|
|
unsigned int constant;
|
|
|
|
constant = read_leb128 (curr, & bytes_read, 0);
|
|
curr += bytes_read;
|
|
string = (char *) curr;
|
|
curr += strlen (string) + 1;
|
|
printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
|
|
constant, string);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
display_debug_abbrev (struct dwarf_section *section,
|
|
void *file ATTRIBUTE_UNUSED)
|
|
{
|
|
abbrev_entry *entry;
|
|
unsigned char *start = section->start;
|
|
unsigned char *end = start + section->size;
|
|
|
|
printf (_("Contents of the %s section:\n\n"), section->name);
|
|
|
|
do
|
|
{
|
|
free_abbrevs ();
|
|
|
|
start = process_abbrev_section (start, end);
|
|
|
|
if (first_abbrev == NULL)
|
|
continue;
|
|
|
|
printf (_(" Number TAG\n"));
|
|
|
|
for (entry = first_abbrev; entry; entry = entry->next)
|
|
{
|
|
abbrev_attr *attr;
|
|
|
|
printf (_(" %ld %s [%s]\n"),
|
|
entry->entry,
|
|
get_TAG_name (entry->tag),
|
|
entry->children ? _("has children") : _("no children"));
|
|
|
|
for (attr = entry->first_attr; attr; attr = attr->next)
|
|
printf (_(" %-18s %s\n"),
|
|
get_AT_name (attr->attribute),
|
|
get_FORM_name (attr->form));
|
|
}
|
|
}
|
|
while (start);
|
|
|
|
printf ("\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
display_debug_loc (struct dwarf_section *section, void *file)
|
|
{
|
|
unsigned char *start = section->start;
|
|
unsigned char *section_end;
|
|
unsigned long bytes;
|
|
unsigned char *section_begin = start;
|
|
unsigned int num_loc_list = 0;
|
|
unsigned long last_offset = 0;
|
|
unsigned int first = 0;
|
|
unsigned int i;
|
|
unsigned int j;
|
|
int seen_first_offset = 0;
|
|
int use_debug_info = 1;
|
|
unsigned char *next;
|
|
|
|
bytes = section->size;
|
|
section_end = start + bytes;
|
|
|
|
if (bytes == 0)
|
|
{
|
|
printf (_("\nThe %s section is empty.\n"), section->name);
|
|
return 0;
|
|
}
|
|
|
|
load_debug_info (file);
|
|
|
|
/* Check the order of location list in .debug_info section. If
|
|
offsets of location lists are in the ascending order, we can
|
|
use `debug_information' directly. */
|
|
for (i = 0; i < num_debug_info_entries; i++)
|
|
{
|
|
unsigned int num;
|
|
|
|
num = debug_information [i].num_loc_offsets;
|
|
num_loc_list += num;
|
|
|
|
/* Check if we can use `debug_information' directly. */
|
|
if (use_debug_info && num != 0)
|
|
{
|
|
if (!seen_first_offset)
|
|
{
|
|
/* This is the first location list. */
|
|
last_offset = debug_information [i].loc_offsets [0];
|
|
first = i;
|
|
seen_first_offset = 1;
|
|
j = 1;
|
|
}
|
|
else
|
|
j = 0;
|
|
|
|
for (; j < num; j++)
|
|
{
|
|
if (last_offset >
|
|
debug_information [i].loc_offsets [j])
|
|
{
|
|
use_debug_info = 0;
|
|
break;
|
|
}
|
|
last_offset = debug_information [i].loc_offsets [j];
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!use_debug_info)
|
|
/* FIXME: Should we handle this case? */
|
|
error (_("Location lists in .debug_info section aren't in ascending order!\n"));
|
|
|
|
if (!seen_first_offset)
|
|
error (_("No location lists in .debug_info section!\n"));
|
|
|
|
/* DWARF sections under Mach-O have non-zero addresses. */
|
|
if (debug_information [first].num_loc_offsets > 0
|
|
&& debug_information [first].loc_offsets [0] != section->address)
|
|
warn (_("Location lists in %s section start at 0x%lx\n"),
|
|
section->name, debug_information [first].loc_offsets [0]);
|
|
|
|
printf (_("Contents of the %s section:\n\n"), section->name);
|
|
printf (_(" Offset Begin End Expression\n"));
|
|
|
|
seen_first_offset = 0;
|
|
for (i = first; i < num_debug_info_entries; i++)
|
|
{
|
|
unsigned long begin;
|
|
unsigned long end;
|
|
unsigned short length;
|
|
unsigned long offset;
|
|
unsigned int pointer_size;
|
|
unsigned long cu_offset;
|
|
unsigned long base_address;
|
|
int need_frame_base;
|
|
int has_frame_base;
|
|
|
|
pointer_size = debug_information [i].pointer_size;
|
|
cu_offset = debug_information [i].cu_offset;
|
|
|
|
for (j = 0; j < debug_information [i].num_loc_offsets; j++)
|
|
{
|
|
has_frame_base = debug_information [i].have_frame_base [j];
|
|
/* DWARF sections under Mach-O have non-zero addresses. */
|
|
offset = debug_information [i].loc_offsets [j] - section->address;
|
|
next = section_begin + offset;
|
|
base_address = debug_information [i].base_address;
|
|
|
|
if (!seen_first_offset)
|
|
seen_first_offset = 1;
|
|
else
|
|
{
|
|
if (start < next)
|
|
warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
|
|
(long)(start - section_begin), (long)(next - section_begin));
|
|
else if (start > next)
|
|
warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
|
|
(long)(start - section_begin), (long)(next - section_begin));
|
|
}
|
|
start = next;
|
|
|
|
if (offset >= bytes)
|
|
{
|
|
warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
|
|
offset);
|
|
continue;
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
if (start + 2 * pointer_size > section_end)
|
|
{
|
|
warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
|
|
offset);
|
|
break;
|
|
}
|
|
|
|
begin = byte_get (start, pointer_size);
|
|
start += pointer_size;
|
|
end = byte_get (start, pointer_size);
|
|
start += pointer_size;
|
|
|
|
if (begin == 0 && end == 0)
|
|
{
|
|
printf (_(" %8.8lx <End of list>\n"), offset);
|
|
break;
|
|
}
|
|
|
|
/* Check base address specifiers. */
|
|
if (begin == -1UL && end != -1UL)
|
|
{
|
|
base_address = end;
|
|
printf (_(" %8.8lx %8.8lx %8.8lx (base address)\n"),
|
|
offset, begin, end);
|
|
continue;
|
|
}
|
|
|
|
if (start + 2 > section_end)
|
|
{
|
|
warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
|
|
offset);
|
|
break;
|
|
}
|
|
|
|
length = byte_get (start, 2);
|
|
start += 2;
|
|
|
|
if (start + length > section_end)
|
|
{
|
|
warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
|
|
offset);
|
|
break;
|
|
}
|
|
|
|
printf (" %8.8lx %8.8lx %8.8lx (",
|
|
offset, begin + base_address, end + base_address);
|
|
need_frame_base = decode_location_expression (start,
|
|
pointer_size,
|
|
length,
|
|
cu_offset);
|
|
putchar (')');
|
|
|
|
if (need_frame_base && !has_frame_base)
|
|
printf (_(" [without DW_AT_frame_base]"));
|
|
|
|
if (begin == end)
|
|
fputs (_(" (start == end)"), stdout);
|
|
else if (begin > end)
|
|
fputs (_(" (start > end)"), stdout);
|
|
|
|
putchar ('\n');
|
|
|
|
start += length;
|
|
}
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
display_debug_str (struct dwarf_section *section,
|
|
void *file ATTRIBUTE_UNUSED)
|
|
{
|
|
unsigned char *start = section->start;
|
|
unsigned long bytes = section->size;
|
|
dwarf_vma addr = section->address;
|
|
|
|
if (bytes == 0)
|
|
{
|
|
printf (_("\nThe %s section is empty.\n"), section->name);
|
|
return 0;
|
|
}
|
|
|
|
printf (_("Contents of the %s section:\n\n"), section->name);
|
|
|
|
while (bytes)
|
|
{
|
|
int j;
|
|
int k;
|
|
int lbytes;
|
|
|
|
lbytes = (bytes > 16 ? 16 : bytes);
|
|
|
|
printf (" 0x%8.8lx ", (unsigned long) addr);
|
|
|
|
for (j = 0; j < 16; j++)
|
|
{
|
|
if (j < lbytes)
|
|
printf ("%2.2x", start[j]);
|
|
else
|
|
printf (" ");
|
|
|
|
if ((j & 3) == 3)
|
|
printf (" ");
|
|
}
|
|
|
|
for (j = 0; j < lbytes; j++)
|
|
{
|
|
k = start[j];
|
|
if (k >= ' ' && k < 0x80)
|
|
printf ("%c", k);
|
|
else
|
|
printf (".");
|
|
}
|
|
|
|
putchar ('\n');
|
|
|
|
start += lbytes;
|
|
addr += lbytes;
|
|
bytes -= lbytes;
|
|
}
|
|
|
|
putchar ('\n');
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
display_debug_info (struct dwarf_section *section, void *file)
|
|
{
|
|
return process_debug_info (section, file, 0);
|
|
}
|
|
|
|
|
|
static int
|
|
display_debug_aranges (struct dwarf_section *section,
|
|
void *file ATTRIBUTE_UNUSED)
|
|
{
|
|
unsigned char *start = section->start;
|
|
unsigned char *end = start + section->size;
|
|
|
|
printf (_("The section %s contains:\n\n"), section->name);
|
|
|
|
while (start < end)
|
|
{
|
|
unsigned char *hdrptr;
|
|
DWARF2_Internal_ARange arange;
|
|
unsigned char *ranges;
|
|
unsigned long length;
|
|
unsigned long address;
|
|
unsigned char address_size;
|
|
int excess;
|
|
int offset_size;
|
|
int initial_length_size;
|
|
|
|
hdrptr = start;
|
|
|
|
arange.ar_length = byte_get (hdrptr, 4);
|
|
hdrptr += 4;
|
|
|
|
if (arange.ar_length == 0xffffffff)
|
|
{
|
|
arange.ar_length = byte_get (hdrptr, 8);
|
|
hdrptr += 8;
|
|
offset_size = 8;
|
|
initial_length_size = 12;
|
|
}
|
|
else
|
|
{
|
|
offset_size = 4;
|
|
initial_length_size = 4;
|
|
}
|
|
|
|
arange.ar_version = byte_get (hdrptr, 2);
|
|
hdrptr += 2;
|
|
|
|
arange.ar_info_offset = byte_get (hdrptr, offset_size);
|
|
hdrptr += offset_size;
|
|
|
|
arange.ar_pointer_size = byte_get (hdrptr, 1);
|
|
hdrptr += 1;
|
|
|
|
arange.ar_segment_size = byte_get (hdrptr, 1);
|
|
hdrptr += 1;
|
|
|
|
if (arange.ar_version != 2 && arange.ar_version != 3)
|
|
{
|
|
warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
|
|
break;
|
|
}
|
|
|
|
printf (_(" Length: %ld\n"), arange.ar_length);
|
|
printf (_(" Version: %d\n"), arange.ar_version);
|
|
printf (_(" Offset into .debug_info: %lx\n"), arange.ar_info_offset);
|
|
printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size);
|
|
printf (_(" Segment Size: %d\n"), arange.ar_segment_size);
|
|
|
|
address_size = arange.ar_pointer_size + arange.ar_segment_size;
|
|
|
|
/* The DWARF spec does not require that the address size be a power
|
|
of two, but we do. This will have to change if we ever encounter
|
|
an uneven architecture. */
|
|
if ((address_size & (address_size - 1)) != 0)
|
|
{
|
|
warn (_("Pointer size + Segment size is not a power of two.\n"));
|
|
break;
|
|
}
|
|
|
|
if (address_size > 4)
|
|
printf (_("\n Address Length\n"));
|
|
else
|
|
printf (_("\n Address Length\n"));
|
|
|
|
ranges = hdrptr;
|
|
|
|
/* Must pad to an alignment boundary that is twice the address size. */
|
|
excess = (hdrptr - start) % (2 * address_size);
|
|
if (excess)
|
|
ranges += (2 * address_size) - excess;
|
|
|
|
start += arange.ar_length + initial_length_size;
|
|
|
|
while (ranges + 2 * address_size <= start)
|
|
{
|
|
address = byte_get (ranges, address_size);
|
|
|
|
ranges += address_size;
|
|
|
|
length = byte_get (ranges, address_size);
|
|
|
|
ranges += address_size;
|
|
|
|
if (address_size > 4)
|
|
printf (" 0x%16.16lx 0x%lx\n", address, length);
|
|
else
|
|
printf (" 0x%8.8lx 0x%lx\n", address, length);
|
|
}
|
|
}
|
|
|
|
printf ("\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
display_debug_ranges (struct dwarf_section *section,
|
|
void *file ATTRIBUTE_UNUSED)
|
|
{
|
|
unsigned char *start = section->start;
|
|
unsigned char *section_end;
|
|
unsigned long bytes;
|
|
unsigned char *section_begin = start;
|
|
unsigned int num_range_list = 0;
|
|
unsigned long last_offset = 0;
|
|
unsigned int first = 0;
|
|
unsigned int i;
|
|
unsigned int j;
|
|
int seen_first_offset = 0;
|
|
int use_debug_info = 1;
|
|
unsigned char *next;
|
|
|
|
bytes = section->size;
|
|
section_end = start + bytes;
|
|
|
|
if (bytes == 0)
|
|
{
|
|
printf (_("\nThe %s section is empty.\n"), section->name);
|
|
return 0;
|
|
}
|
|
|
|
load_debug_info (file);
|
|
|
|
/* Check the order of range list in .debug_info section. If
|
|
offsets of range lists are in the ascending order, we can
|
|
use `debug_information' directly. */
|
|
for (i = 0; i < num_debug_info_entries; i++)
|
|
{
|
|
unsigned int num;
|
|
|
|
num = debug_information [i].num_range_lists;
|
|
num_range_list += num;
|
|
|
|
/* Check if we can use `debug_information' directly. */
|
|
if (use_debug_info && num != 0)
|
|
{
|
|
if (!seen_first_offset)
|
|
{
|
|
/* This is the first range list. */
|
|
last_offset = debug_information [i].range_lists [0];
|
|
first = i;
|
|
seen_first_offset = 1;
|
|
j = 1;
|
|
}
|
|
else
|
|
j = 0;
|
|
|
|
for (; j < num; j++)
|
|
{
|
|
if (last_offset >
|
|
debug_information [i].range_lists [j])
|
|
{
|
|
use_debug_info = 0;
|
|
break;
|
|
}
|
|
last_offset = debug_information [i].range_lists [j];
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!use_debug_info)
|
|
/* FIXME: Should we handle this case? */
|
|
error (_("Range lists in .debug_info section aren't in ascending order!\n"));
|
|
|
|
if (!seen_first_offset)
|
|
error (_("No range lists in .debug_info section!\n"));
|
|
|
|
/* DWARF sections under Mach-O have non-zero addresses. */
|
|
if (debug_information [first].num_range_lists > 0
|
|
&& debug_information [first].range_lists [0] != section->address)
|
|
warn (_("Range lists in %s section start at 0x%lx\n"),
|
|
section->name, debug_information [first].range_lists [0]);
|
|
|
|
printf (_("Contents of the %s section:\n\n"), section->name);
|
|
printf (_(" Offset Begin End\n"));
|
|
|
|
seen_first_offset = 0;
|
|
for (i = first; i < num_debug_info_entries; i++)
|
|
{
|
|
unsigned long begin;
|
|
unsigned long end;
|
|
unsigned long offset;
|
|
unsigned int pointer_size;
|
|
unsigned long base_address;
|
|
|
|
pointer_size = debug_information [i].pointer_size;
|
|
|
|
for (j = 0; j < debug_information [i].num_range_lists; j++)
|
|
{
|
|
/* DWARF sections under Mach-O have non-zero addresses. */
|
|
offset = debug_information [i].range_lists [j] - section->address;
|
|
next = section_begin + offset;
|
|
base_address = debug_information [i].base_address;
|
|
|
|
if (!seen_first_offset)
|
|
seen_first_offset = 1;
|
|
else
|
|
{
|
|
if (start < next)
|
|
warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
|
|
(long)(start - section_begin),
|
|
(long)(next - section_begin), section->name);
|
|
else if (start > next)
|
|
warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
|
|
(long)(start - section_begin),
|
|
(long)(next - section_begin), section->name);
|
|
}
|
|
start = next;
|
|
|
|
while (1)
|
|
{
|
|
begin = byte_get (start, pointer_size);
|
|
start += pointer_size;
|
|
end = byte_get (start, pointer_size);
|
|
start += pointer_size;
|
|
|
|
if (begin == 0 && end == 0)
|
|
{
|
|
printf (_(" %8.8lx <End of list>\n"), offset);
|
|
break;
|
|
}
|
|
|
|
/* Check base address specifiers. */
|
|
if (begin == -1UL && end != -1UL)
|
|
{
|
|
base_address = end;
|
|
printf (" %8.8lx %8.8lx %8.8lx (base address)\n",
|
|
offset, begin, end);
|
|
continue;
|
|
}
|
|
|
|
printf (" %8.8lx %8.8lx %8.8lx",
|
|
offset, begin + base_address, end + base_address);
|
|
|
|
if (begin == end)
|
|
fputs (_(" (start == end)"), stdout);
|
|
else if (begin > end)
|
|
fputs (_(" (start > end)"), stdout);
|
|
|
|
putchar ('\n');
|
|
}
|
|
}
|
|
}
|
|
putchar ('\n');
|
|
return 1;
|
|
}
|
|
|
|
typedef struct Frame_Chunk
|
|
{
|
|
struct Frame_Chunk *next;
|
|
unsigned char *chunk_start;
|
|
int ncols;
|
|
/* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
|
|
short int *col_type;
|
|
int *col_offset;
|
|
char *augmentation;
|
|
unsigned int code_factor;
|
|
int data_factor;
|
|
unsigned long pc_begin;
|
|
unsigned long pc_range;
|
|
int cfa_reg;
|
|
int cfa_offset;
|
|
int ra;
|
|
unsigned char fde_encoding;
|
|
unsigned char cfa_exp;
|
|
}
|
|
Frame_Chunk;
|
|
|
|
/* A marker for a col_type that means this column was never referenced
|
|
in the frame info. */
|
|
#define DW_CFA_unreferenced (-1)
|
|
|
|
static void
|
|
frame_need_space (Frame_Chunk *fc, int reg)
|
|
{
|
|
int prev = fc->ncols;
|
|
|
|
if (reg < fc->ncols)
|
|
return;
|
|
|
|
fc->ncols = reg + 1;
|
|
fc->col_type = xcrealloc (fc->col_type, fc->ncols, sizeof (short int));
|
|
fc->col_offset = xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
|
|
|
|
while (prev < fc->ncols)
|
|
{
|
|
fc->col_type[prev] = DW_CFA_unreferenced;
|
|
fc->col_offset[prev] = 0;
|
|
prev++;
|
|
}
|
|
}
|
|
|
|
static void
|
|
frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs)
|
|
{
|
|
int r;
|
|
char tmp[100];
|
|
|
|
if (*max_regs < fc->ncols)
|
|
*max_regs = fc->ncols;
|
|
|
|
if (*need_col_headers)
|
|
{
|
|
*need_col_headers = 0;
|
|
|
|
printf (" LOC CFA ");
|
|
|
|
for (r = 0; r < *max_regs; r++)
|
|
if (fc->col_type[r] != DW_CFA_unreferenced)
|
|
{
|
|
if (r == fc->ra)
|
|
printf ("ra ");
|
|
else
|
|
printf ("r%-4d", r);
|
|
}
|
|
|
|
printf ("\n");
|
|
}
|
|
|
|
printf ("%08lx ", fc->pc_begin);
|
|
if (fc->cfa_exp)
|
|
strcpy (tmp, "exp");
|
|
else
|
|
sprintf (tmp, "r%d%+d", fc->cfa_reg, fc->cfa_offset);
|
|
printf ("%-8s ", tmp);
|
|
|
|
for (r = 0; r < fc->ncols; r++)
|
|
{
|
|
if (fc->col_type[r] != DW_CFA_unreferenced)
|
|
{
|
|
switch (fc->col_type[r])
|
|
{
|
|
case DW_CFA_undefined:
|
|
strcpy (tmp, "u");
|
|
break;
|
|
case DW_CFA_same_value:
|
|
strcpy (tmp, "s");
|
|
break;
|
|
case DW_CFA_offset:
|
|
sprintf (tmp, "c%+d", fc->col_offset[r]);
|
|
break;
|
|
case DW_CFA_val_offset:
|
|
sprintf (tmp, "v%+d", fc->col_offset[r]);
|
|
break;
|
|
case DW_CFA_register:
|
|
sprintf (tmp, "r%d", fc->col_offset[r]);
|
|
break;
|
|
case DW_CFA_expression:
|
|
strcpy (tmp, "exp");
|
|
break;
|
|
case DW_CFA_val_expression:
|
|
strcpy (tmp, "vexp");
|
|
break;
|
|
default:
|
|
strcpy (tmp, "n/a");
|
|
break;
|
|
}
|
|
printf ("%-5s", tmp);
|
|
}
|
|
}
|
|
printf ("\n");
|
|
}
|
|
|
|
static int
|
|
size_of_encoded_value (int encoding)
|
|
{
|
|
switch (encoding & 0x7)
|
|
{
|
|
default: /* ??? */
|
|
case 0: return eh_addr_size;
|
|
case 2: return 2;
|
|
case 3: return 4;
|
|
case 4: return 8;
|
|
}
|
|
}
|
|
|
|
static dwarf_vma
|
|
get_encoded_value (unsigned char *data, int encoding)
|
|
{
|
|
int size = size_of_encoded_value (encoding);
|
|
|
|
if (encoding & DW_EH_PE_signed)
|
|
return byte_get_signed (data, size);
|
|
else
|
|
return byte_get (data, size);
|
|
}
|
|
|
|
#define GET(N) byte_get (start, N); start += N
|
|
#define LEB() read_leb128 (start, & length_return, 0); start += length_return
|
|
#define SLEB() read_leb128 (start, & length_return, 1); start += length_return
|
|
|
|
static int
|
|
display_debug_frames (struct dwarf_section *section,
|
|
void *file ATTRIBUTE_UNUSED)
|
|
{
|
|
unsigned char *start = section->start;
|
|
unsigned char *end = start + section->size;
|
|
unsigned char *section_start = start;
|
|
Frame_Chunk *chunks = 0;
|
|
Frame_Chunk *remembered_state = 0;
|
|
Frame_Chunk *rs;
|
|
int is_eh = strcmp (section->name, ".eh_frame") == 0;
|
|
unsigned int length_return;
|
|
int max_regs = 0;
|
|
|
|
printf (_("The section %s contains:\n"), section->name);
|
|
|
|
while (start < end)
|
|
{
|
|
unsigned char *saved_start;
|
|
unsigned char *block_end;
|
|
unsigned long length;
|
|
unsigned long cie_id;
|
|
Frame_Chunk *fc;
|
|
Frame_Chunk *cie;
|
|
int need_col_headers = 1;
|
|
unsigned char *augmentation_data = NULL;
|
|
unsigned long augmentation_data_len = 0;
|
|
int encoded_ptr_size = eh_addr_size;
|
|
int offset_size;
|
|
int initial_length_size;
|
|
|
|
saved_start = start;
|
|
length = byte_get (start, 4); start += 4;
|
|
|
|
if (length == 0)
|
|
{
|
|
printf ("\n%08lx ZERO terminator\n\n",
|
|
(unsigned long)(saved_start - section_start));
|
|
continue;
|
|
}
|
|
|
|
if (length == 0xffffffff)
|
|
{
|
|
length = byte_get (start, 8);
|
|
start += 8;
|
|
offset_size = 8;
|
|
initial_length_size = 12;
|
|
}
|
|
else
|
|
{
|
|
offset_size = 4;
|
|
initial_length_size = 4;
|
|
}
|
|
|
|
block_end = saved_start + length + initial_length_size;
|
|
if (block_end > end)
|
|
{
|
|
warn ("Invalid length %#08lx in FDE at %#08lx\n",
|
|
length, (unsigned long)(saved_start - section_start));
|
|
block_end = end;
|
|
}
|
|
cie_id = byte_get (start, offset_size); start += offset_size;
|
|
|
|
if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID))
|
|
{
|
|
int version;
|
|
|
|
fc = xmalloc (sizeof (Frame_Chunk));
|
|
memset (fc, 0, sizeof (Frame_Chunk));
|
|
|
|
fc->next = chunks;
|
|
chunks = fc;
|
|
fc->chunk_start = saved_start;
|
|
fc->ncols = 0;
|
|
fc->col_type = xmalloc (sizeof (short int));
|
|
fc->col_offset = xmalloc (sizeof (int));
|
|
frame_need_space (fc, max_regs-1);
|
|
|
|
version = *start++;
|
|
|
|
fc->augmentation = (char *) start;
|
|
start = (unsigned char *) strchr ((char *) start, '\0') + 1;
|
|
|
|
if (fc->augmentation[0] == 'z')
|
|
{
|
|
fc->code_factor = LEB ();
|
|
fc->data_factor = SLEB ();
|
|
if (version == 1)
|
|
{
|
|
fc->ra = GET (1);
|
|
}
|
|
else
|
|
{
|
|
fc->ra = LEB ();
|
|
}
|
|
augmentation_data_len = LEB ();
|
|
augmentation_data = start;
|
|
start += augmentation_data_len;
|
|
}
|
|
else if (strcmp (fc->augmentation, "eh") == 0)
|
|
{
|
|
start += eh_addr_size;
|
|
fc->code_factor = LEB ();
|
|
fc->data_factor = SLEB ();
|
|
if (version == 1)
|
|
{
|
|
fc->ra = GET (1);
|
|
}
|
|
else
|
|
{
|
|
fc->ra = LEB ();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
fc->code_factor = LEB ();
|
|
fc->data_factor = SLEB ();
|
|
if (version == 1)
|
|
{
|
|
fc->ra = GET (1);
|
|
}
|
|
else
|
|
{
|
|
fc->ra = LEB ();
|
|
}
|
|
}
|
|
cie = fc;
|
|
|
|
if (do_debug_frames_interp)
|
|
printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n",
|
|
(unsigned long)(saved_start - section_start), length, cie_id,
|
|
fc->augmentation, fc->code_factor, fc->data_factor,
|
|
fc->ra);
|
|
else
|
|
{
|
|
printf ("\n%08lx %08lx %08lx CIE\n",
|
|
(unsigned long)(saved_start - section_start), length, cie_id);
|
|
printf (" Version: %d\n", version);
|
|
printf (" Augmentation: \"%s\"\n", fc->augmentation);
|
|
printf (" Code alignment factor: %u\n", fc->code_factor);
|
|
printf (" Data alignment factor: %d\n", fc->data_factor);
|
|
printf (" Return address column: %d\n", fc->ra);
|
|
|
|
if (augmentation_data_len)
|
|
{
|
|
unsigned long i;
|
|
printf (" Augmentation data: ");
|
|
for (i = 0; i < augmentation_data_len; ++i)
|
|
printf (" %02x", augmentation_data[i]);
|
|
putchar ('\n');
|
|
}
|
|
putchar ('\n');
|
|
}
|
|
|
|
if (augmentation_data_len)
|
|
{
|
|
unsigned char *p, *q;
|
|
p = (unsigned char *) fc->augmentation + 1;
|
|
q = augmentation_data;
|
|
|
|
while (1)
|
|
{
|
|
if (*p == 'L')
|
|
q++;
|
|
else if (*p == 'P')
|
|
q += 1 + size_of_encoded_value (*q);
|
|
else if (*p == 'R')
|
|
fc->fde_encoding = *q++;
|
|
else
|
|
break;
|
|
p++;
|
|
}
|
|
|
|
if (fc->fde_encoding)
|
|
encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
|
|
}
|
|
|
|
frame_need_space (fc, fc->ra);
|
|
}
|
|
else
|
|
{
|
|
unsigned char *look_for;
|
|
static Frame_Chunk fde_fc;
|
|
|
|
fc = & fde_fc;
|
|
memset (fc, 0, sizeof (Frame_Chunk));
|
|
|
|
look_for = is_eh ? start - 4 - cie_id : section_start + cie_id;
|
|
|
|
for (cie = chunks; cie ; cie = cie->next)
|
|
if (cie->chunk_start == look_for)
|
|
break;
|
|
|
|
if (!cie)
|
|
{
|
|
warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n",
|
|
cie_id, (unsigned long)(saved_start - section_start));
|
|
fc->ncols = 0;
|
|
fc->col_type = xmalloc (sizeof (short int));
|
|
fc->col_offset = xmalloc (sizeof (int));
|
|
frame_need_space (fc, max_regs - 1);
|
|
cie = fc;
|
|
fc->augmentation = "";
|
|
fc->fde_encoding = 0;
|
|
}
|
|
else
|
|
{
|
|
fc->ncols = cie->ncols;
|
|
fc->col_type = xcmalloc (fc->ncols, sizeof (short int));
|
|
fc->col_offset = xcmalloc (fc->ncols, sizeof (int));
|
|
memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int));
|
|
memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int));
|
|
fc->augmentation = cie->augmentation;
|
|
fc->code_factor = cie->code_factor;
|
|
fc->data_factor = cie->data_factor;
|
|
fc->cfa_reg = cie->cfa_reg;
|
|
fc->cfa_offset = cie->cfa_offset;
|
|
fc->ra = cie->ra;
|
|
frame_need_space (fc, max_regs-1);
|
|
fc->fde_encoding = cie->fde_encoding;
|
|
}
|
|
|
|
if (fc->fde_encoding)
|
|
encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
|
|
|
|
fc->pc_begin = get_encoded_value (start, fc->fde_encoding);
|
|
if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
|
|
/* Don't adjust for relocatable file since there's
|
|
invariably a pcrel reloc here, which we haven't
|
|
applied. */
|
|
&& !is_relocatable)
|
|
fc->pc_begin += section->address + (start - section_start);
|
|
start += encoded_ptr_size;
|
|
fc->pc_range = byte_get (start, encoded_ptr_size);
|
|
start += encoded_ptr_size;
|
|
|
|
if (cie->augmentation[0] == 'z')
|
|
{
|
|
augmentation_data_len = LEB ();
|
|
augmentation_data = start;
|
|
start += augmentation_data_len;
|
|
}
|
|
|
|
printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=%08lx..%08lx\n",
|
|
(unsigned long)(saved_start - section_start), length, cie_id,
|
|
(unsigned long)(cie->chunk_start - section_start),
|
|
fc->pc_begin, fc->pc_begin + fc->pc_range);
|
|
if (! do_debug_frames_interp && augmentation_data_len)
|
|
{
|
|
unsigned long i;
|
|
|
|
printf (" Augmentation data: ");
|
|
for (i = 0; i < augmentation_data_len; ++i)
|
|
printf (" %02x", augmentation_data[i]);
|
|
putchar ('\n');
|
|
putchar ('\n');
|
|
}
|
|
}
|
|
|
|
/* At this point, fc is the current chunk, cie (if any) is set, and
|
|
we're about to interpret instructions for the chunk. */
|
|
/* ??? At present we need to do this always, since this sizes the
|
|
fc->col_type and fc->col_offset arrays, which we write into always.
|
|
We should probably split the interpreted and non-interpreted bits
|
|
into two different routines, since there's so much that doesn't
|
|
really overlap between them. */
|
|
if (1 || do_debug_frames_interp)
|
|
{
|
|
/* Start by making a pass over the chunk, allocating storage
|
|
and taking note of what registers are used. */
|
|
unsigned char *tmp = start;
|
|
|
|
while (start < block_end)
|
|
{
|
|
unsigned op, opa;
|
|
unsigned long reg, tmp;
|
|
|
|
op = *start++;
|
|
opa = op & 0x3f;
|
|
if (op & 0xc0)
|
|
op &= 0xc0;
|
|
|
|
/* Warning: if you add any more cases to this switch, be
|
|
sure to add them to the corresponding switch below. */
|
|
switch (op)
|
|
{
|
|
case DW_CFA_advance_loc:
|
|
break;
|
|
case DW_CFA_offset:
|
|
LEB ();
|
|
frame_need_space (fc, opa);
|
|
fc->col_type[opa] = DW_CFA_undefined;
|
|
break;
|
|
case DW_CFA_restore:
|
|
frame_need_space (fc, opa);
|
|
fc->col_type[opa] = DW_CFA_undefined;
|
|
break;
|
|
case DW_CFA_set_loc:
|
|
start += encoded_ptr_size;
|
|
break;
|
|
case DW_CFA_advance_loc1:
|
|
start += 1;
|
|
break;
|
|
case DW_CFA_advance_loc2:
|
|
start += 2;
|
|
break;
|
|
case DW_CFA_advance_loc4:
|
|
start += 4;
|
|
break;
|
|
case DW_CFA_offset_extended:
|
|
case DW_CFA_val_offset:
|
|
reg = LEB (); LEB ();
|
|
frame_need_space (fc, reg);
|
|
fc->col_type[reg] = DW_CFA_undefined;
|
|
break;
|
|
case DW_CFA_restore_extended:
|
|
reg = LEB ();
|
|
frame_need_space (fc, reg);
|
|
fc->col_type[reg] = DW_CFA_undefined;
|
|
break;
|
|
case DW_CFA_undefined:
|
|
reg = LEB ();
|
|
frame_need_space (fc, reg);
|
|
fc->col_type[reg] = DW_CFA_undefined;
|
|
break;
|
|
case DW_CFA_same_value:
|
|
reg = LEB ();
|
|
frame_need_space (fc, reg);
|
|
fc->col_type[reg] = DW_CFA_undefined;
|
|
break;
|
|
case DW_CFA_register:
|
|
reg = LEB (); LEB ();
|
|
frame_need_space (fc, reg);
|
|
fc->col_type[reg] = DW_CFA_undefined;
|
|
break;
|
|
case DW_CFA_def_cfa:
|
|
LEB (); LEB ();
|
|
break;
|
|
case DW_CFA_def_cfa_register:
|
|
LEB ();
|
|
break;
|
|
case DW_CFA_def_cfa_offset:
|
|
LEB ();
|
|
break;
|
|
case DW_CFA_def_cfa_expression:
|
|
tmp = LEB ();
|
|
start += tmp;
|
|
break;
|
|
case DW_CFA_expression:
|
|
case DW_CFA_val_expression:
|
|
reg = LEB ();
|
|
tmp = LEB ();
|
|
start += tmp;
|
|
frame_need_space (fc, reg);
|
|
fc->col_type[reg] = DW_CFA_undefined;
|
|
break;
|
|
case DW_CFA_offset_extended_sf:
|
|
case DW_CFA_val_offset_sf:
|
|
reg = LEB (); SLEB ();
|
|
frame_need_space (fc, reg);
|
|
fc->col_type[reg] = DW_CFA_undefined;
|
|
break;
|
|
case DW_CFA_def_cfa_sf:
|
|
LEB (); SLEB ();
|
|
break;
|
|
case DW_CFA_def_cfa_offset_sf:
|
|
SLEB ();
|
|
break;
|
|
case DW_CFA_MIPS_advance_loc8:
|
|
start += 8;
|
|
break;
|
|
case DW_CFA_GNU_args_size:
|
|
LEB ();
|
|
break;
|
|
case DW_CFA_GNU_negative_offset_extended:
|
|
reg = LEB (); LEB ();
|
|
frame_need_space (fc, reg);
|
|
fc->col_type[reg] = DW_CFA_undefined;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
start = tmp;
|
|
}
|
|
|
|
/* Now we know what registers are used, make a second pass over
|
|
the chunk, this time actually printing out the info. */
|
|
|
|
while (start < block_end)
|
|
{
|
|
unsigned op, opa;
|
|
unsigned long ul, reg, roffs;
|
|
long l, ofs;
|
|
dwarf_vma vma;
|
|
|
|
op = *start++;
|
|
opa = op & 0x3f;
|
|
if (op & 0xc0)
|
|
op &= 0xc0;
|
|
|
|
/* Warning: if you add any more cases to this switch, be
|
|
sure to add them to the corresponding switch above. */
|
|
switch (op)
|
|
{
|
|
case DW_CFA_advance_loc:
|
|
if (do_debug_frames_interp)
|
|
frame_display_row (fc, &need_col_headers, &max_regs);
|
|
else
|
|
printf (" DW_CFA_advance_loc: %d to %08lx\n",
|
|
opa * fc->code_factor,
|
|
fc->pc_begin + opa * fc->code_factor);
|
|
fc->pc_begin += opa * fc->code_factor;
|
|
break;
|
|
|
|
case DW_CFA_offset:
|
|
roffs = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_offset: r%d at cfa%+ld\n",
|
|
opa, roffs * fc->data_factor);
|
|
fc->col_type[opa] = DW_CFA_offset;
|
|
fc->col_offset[opa] = roffs * fc->data_factor;
|
|
break;
|
|
|
|
case DW_CFA_restore:
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_restore: r%d\n", opa);
|
|
fc->col_type[opa] = cie->col_type[opa];
|
|
fc->col_offset[opa] = cie->col_offset[opa];
|
|
break;
|
|
|
|
case DW_CFA_set_loc:
|
|
vma = get_encoded_value (start, fc->fde_encoding);
|
|
if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
|
|
&& !is_relocatable)
|
|
vma += section->address + (start - section_start);
|
|
start += encoded_ptr_size;
|
|
if (do_debug_frames_interp)
|
|
frame_display_row (fc, &need_col_headers, &max_regs);
|
|
else
|
|
printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma);
|
|
fc->pc_begin = vma;
|
|
break;
|
|
|
|
case DW_CFA_advance_loc1:
|
|
ofs = byte_get (start, 1); start += 1;
|
|
if (do_debug_frames_interp)
|
|
frame_display_row (fc, &need_col_headers, &max_regs);
|
|
else
|
|
printf (" DW_CFA_advance_loc1: %ld to %08lx\n",
|
|
ofs * fc->code_factor,
|
|
fc->pc_begin + ofs * fc->code_factor);
|
|
fc->pc_begin += ofs * fc->code_factor;
|
|
break;
|
|
|
|
case DW_CFA_advance_loc2:
|
|
ofs = byte_get (start, 2); start += 2;
|
|
if (do_debug_frames_interp)
|
|
frame_display_row (fc, &need_col_headers, &max_regs);
|
|
else
|
|
printf (" DW_CFA_advance_loc2: %ld to %08lx\n",
|
|
ofs * fc->code_factor,
|
|
fc->pc_begin + ofs * fc->code_factor);
|
|
fc->pc_begin += ofs * fc->code_factor;
|
|
break;
|
|
|
|
case DW_CFA_advance_loc4:
|
|
ofs = byte_get (start, 4); start += 4;
|
|
if (do_debug_frames_interp)
|
|
frame_display_row (fc, &need_col_headers, &max_regs);
|
|
else
|
|
printf (" DW_CFA_advance_loc4: %ld to %08lx\n",
|
|
ofs * fc->code_factor,
|
|
fc->pc_begin + ofs * fc->code_factor);
|
|
fc->pc_begin += ofs * fc->code_factor;
|
|
break;
|
|
|
|
case DW_CFA_offset_extended:
|
|
reg = LEB ();
|
|
roffs = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_offset_extended: r%ld at cfa%+ld\n",
|
|
reg, roffs * fc->data_factor);
|
|
fc->col_type[reg] = DW_CFA_offset;
|
|
fc->col_offset[reg] = roffs * fc->data_factor;
|
|
break;
|
|
|
|
case DW_CFA_val_offset:
|
|
reg = LEB ();
|
|
roffs = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_val_offset: r%ld at cfa%+ld\n",
|
|
reg, roffs * fc->data_factor);
|
|
fc->col_type[reg] = DW_CFA_val_offset;
|
|
fc->col_offset[reg] = roffs * fc->data_factor;
|
|
break;
|
|
|
|
case DW_CFA_restore_extended:
|
|
reg = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_restore_extended: r%ld\n", reg);
|
|
fc->col_type[reg] = cie->col_type[reg];
|
|
fc->col_offset[reg] = cie->col_offset[reg];
|
|
break;
|
|
|
|
case DW_CFA_undefined:
|
|
reg = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_undefined: r%ld\n", reg);
|
|
fc->col_type[reg] = DW_CFA_undefined;
|
|
fc->col_offset[reg] = 0;
|
|
break;
|
|
|
|
case DW_CFA_same_value:
|
|
reg = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_same_value: r%ld\n", reg);
|
|
fc->col_type[reg] = DW_CFA_same_value;
|
|
fc->col_offset[reg] = 0;
|
|
break;
|
|
|
|
case DW_CFA_register:
|
|
reg = LEB ();
|
|
roffs = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_register: r%ld in r%ld\n", reg, roffs);
|
|
fc->col_type[reg] = DW_CFA_register;
|
|
fc->col_offset[reg] = roffs;
|
|
break;
|
|
|
|
case DW_CFA_remember_state:
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_remember_state\n");
|
|
rs = xmalloc (sizeof (Frame_Chunk));
|
|
rs->ncols = fc->ncols;
|
|
rs->col_type = xcmalloc (rs->ncols, sizeof (short int));
|
|
rs->col_offset = xcmalloc (rs->ncols, sizeof (int));
|
|
memcpy (rs->col_type, fc->col_type, rs->ncols);
|
|
memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int));
|
|
rs->next = remembered_state;
|
|
remembered_state = rs;
|
|
break;
|
|
|
|
case DW_CFA_restore_state:
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_restore_state\n");
|
|
rs = remembered_state;
|
|
if (rs)
|
|
{
|
|
remembered_state = rs->next;
|
|
frame_need_space (fc, rs->ncols-1);
|
|
memcpy (fc->col_type, rs->col_type, rs->ncols);
|
|
memcpy (fc->col_offset, rs->col_offset,
|
|
rs->ncols * sizeof (int));
|
|
free (rs->col_type);
|
|
free (rs->col_offset);
|
|
free (rs);
|
|
}
|
|
else if (do_debug_frames_interp)
|
|
printf ("Mismatched DW_CFA_restore_state\n");
|
|
break;
|
|
|
|
case DW_CFA_def_cfa:
|
|
fc->cfa_reg = LEB ();
|
|
fc->cfa_offset = LEB ();
|
|
fc->cfa_exp = 0;
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_def_cfa: r%d ofs %d\n",
|
|
fc->cfa_reg, fc->cfa_offset);
|
|
break;
|
|
|
|
case DW_CFA_def_cfa_register:
|
|
fc->cfa_reg = LEB ();
|
|
fc->cfa_exp = 0;
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_def_cfa_reg: r%d\n", fc->cfa_reg);
|
|
break;
|
|
|
|
case DW_CFA_def_cfa_offset:
|
|
fc->cfa_offset = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset);
|
|
break;
|
|
|
|
case DW_CFA_nop:
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_nop\n");
|
|
break;
|
|
|
|
case DW_CFA_def_cfa_expression:
|
|
ul = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
{
|
|
printf (" DW_CFA_def_cfa_expression (");
|
|
decode_location_expression (start, eh_addr_size, ul, 0);
|
|
printf (")\n");
|
|
}
|
|
fc->cfa_exp = 1;
|
|
start += ul;
|
|
break;
|
|
|
|
case DW_CFA_expression:
|
|
reg = LEB ();
|
|
ul = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
{
|
|
printf (" DW_CFA_expression: r%ld (", reg);
|
|
decode_location_expression (start, eh_addr_size, ul, 0);
|
|
printf (")\n");
|
|
}
|
|
fc->col_type[reg] = DW_CFA_expression;
|
|
start += ul;
|
|
break;
|
|
|
|
case DW_CFA_val_expression:
|
|
reg = LEB ();
|
|
ul = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
{
|
|
printf (" DW_CFA_val_expression: r%ld (", reg);
|
|
decode_location_expression (start, eh_addr_size, ul, 0);
|
|
printf (")\n");
|
|
}
|
|
fc->col_type[reg] = DW_CFA_val_expression;
|
|
start += ul;
|
|
break;
|
|
|
|
case DW_CFA_offset_extended_sf:
|
|
reg = LEB ();
|
|
l = SLEB ();
|
|
frame_need_space (fc, reg);
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_offset_extended_sf: r%ld at cfa%+ld\n",
|
|
reg, l * fc->data_factor);
|
|
fc->col_type[reg] = DW_CFA_offset;
|
|
fc->col_offset[reg] = l * fc->data_factor;
|
|
break;
|
|
|
|
case DW_CFA_val_offset_sf:
|
|
reg = LEB ();
|
|
l = SLEB ();
|
|
frame_need_space (fc, reg);
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_val_offset_sf: r%ld at cfa%+ld\n",
|
|
reg, l * fc->data_factor);
|
|
fc->col_type[reg] = DW_CFA_val_offset;
|
|
fc->col_offset[reg] = l * fc->data_factor;
|
|
break;
|
|
|
|
case DW_CFA_def_cfa_sf:
|
|
fc->cfa_reg = LEB ();
|
|
fc->cfa_offset = SLEB ();
|
|
fc->cfa_offset = fc->cfa_offset * fc->data_factor;
|
|
fc->cfa_exp = 0;
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_def_cfa_sf: r%d ofs %d\n",
|
|
fc->cfa_reg, fc->cfa_offset);
|
|
break;
|
|
|
|
case DW_CFA_def_cfa_offset_sf:
|
|
fc->cfa_offset = SLEB ();
|
|
fc->cfa_offset = fc->cfa_offset * fc->data_factor;
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset);
|
|
break;
|
|
|
|
case DW_CFA_MIPS_advance_loc8:
|
|
ofs = byte_get (start, 8); start += 8;
|
|
if (do_debug_frames_interp)
|
|
frame_display_row (fc, &need_col_headers, &max_regs);
|
|
else
|
|
printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n",
|
|
ofs * fc->code_factor,
|
|
fc->pc_begin + ofs * fc->code_factor);
|
|
fc->pc_begin += ofs * fc->code_factor;
|
|
break;
|
|
|
|
case DW_CFA_GNU_window_save:
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_GNU_window_save\n");
|
|
break;
|
|
|
|
case DW_CFA_GNU_args_size:
|
|
ul = LEB ();
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_GNU_args_size: %ld\n", ul);
|
|
break;
|
|
|
|
case DW_CFA_GNU_negative_offset_extended:
|
|
reg = LEB ();
|
|
l = - LEB ();
|
|
frame_need_space (fc, reg);
|
|
if (! do_debug_frames_interp)
|
|
printf (" DW_CFA_GNU_negative_offset_extended: r%ld at cfa%+ld\n",
|
|
reg, l * fc->data_factor);
|
|
fc->col_type[reg] = DW_CFA_offset;
|
|
fc->col_offset[reg] = l * fc->data_factor;
|
|
break;
|
|
|
|
default:
|
|
if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user)
|
|
printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op);
|
|
else
|
|
warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op);
|
|
start = block_end;
|
|
}
|
|
}
|
|
|
|
if (do_debug_frames_interp)
|
|
frame_display_row (fc, &need_col_headers, &max_regs);
|
|
|
|
start = block_end;
|
|
}
|
|
|
|
printf ("\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
#undef GET
|
|
#undef LEB
|
|
#undef SLEB
|
|
|
|
static int
|
|
display_debug_not_supported (struct dwarf_section *section,
|
|
void *file ATTRIBUTE_UNUSED)
|
|
{
|
|
printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
|
|
section->name);
|
|
|
|
return 1;
|
|
}
|
|
|
|
void *
|
|
cmalloc (size_t nmemb, size_t size)
|
|
{
|
|
/* Check for overflow. */
|
|
if (nmemb >= ~(size_t) 0 / size)
|
|
return NULL;
|
|
else
|
|
return malloc (nmemb * size);
|
|
}
|
|
|
|
void *
|
|
xcmalloc (size_t nmemb, size_t size)
|
|
{
|
|
/* Check for overflow. */
|
|
if (nmemb >= ~(size_t) 0 / size)
|
|
return NULL;
|
|
else
|
|
return xmalloc (nmemb * size);
|
|
}
|
|
|
|
void *
|
|
xcrealloc (void *ptr, size_t nmemb, size_t size)
|
|
{
|
|
/* Check for overflow. */
|
|
if (nmemb >= ~(size_t) 0 / size)
|
|
return NULL;
|
|
else
|
|
return xrealloc (ptr, nmemb * size);
|
|
}
|
|
|
|
void
|
|
error (const char *message, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start (args, message);
|
|
fprintf (stderr, _("%s: Error: "), program_name);
|
|
vfprintf (stderr, message, args);
|
|
va_end (args);
|
|
}
|
|
|
|
void
|
|
warn (const char *message, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start (args, message);
|
|
fprintf (stderr, _("%s: Warning: "), program_name);
|
|
vfprintf (stderr, message, args);
|
|
va_end (args);
|
|
}
|
|
|
|
void
|
|
free_debug_memory (void)
|
|
{
|
|
enum dwarf_section_display_enum i;
|
|
|
|
free_abbrevs ();
|
|
|
|
for (i = 0; i < max; i++)
|
|
free_debug_section (i);
|
|
|
|
if (debug_information)
|
|
{
|
|
for (i = 0; i < num_debug_info_entries; i++)
|
|
{
|
|
if (!debug_information [i].max_loc_offsets)
|
|
{
|
|
free (debug_information [i].loc_offsets);
|
|
free (debug_information [i].have_frame_base);
|
|
}
|
|
if (!debug_information [i].max_range_lists)
|
|
free (debug_information [i].range_lists);
|
|
}
|
|
free (debug_information);
|
|
debug_information = NULL;
|
|
num_debug_info_entries = 0;
|
|
}
|
|
|
|
}
|
|
|
|
struct dwarf_section_display debug_displays[] =
|
|
{
|
|
{ { ".debug_abbrev", NULL, 0, 0 },
|
|
display_debug_abbrev, 0, 0 },
|
|
{ { ".debug_aranges", NULL, 0, 0 },
|
|
display_debug_aranges, 0, 0 },
|
|
{ { ".debug_frame", NULL, 0, 0 },
|
|
display_debug_frames, 1, 0 },
|
|
{ { ".debug_info", NULL, 0, 0 },
|
|
display_debug_info, 1, 0 },
|
|
{ { ".debug_line", NULL, 0, 0 },
|
|
display_debug_lines, 0, 0 },
|
|
{ { ".debug_pubnames", NULL, 0, 0 },
|
|
display_debug_pubnames, 0, 0 },
|
|
{ { ".eh_frame", NULL, 0, 0 },
|
|
display_debug_frames, 1, 1 },
|
|
{ { ".debug_macinfo", NULL, 0, 0 },
|
|
display_debug_macinfo, 0, 0 },
|
|
{ { ".debug_str", NULL, 0, 0 },
|
|
display_debug_str, 0, 0 },
|
|
{ { ".debug_loc", NULL, 0, 0 },
|
|
display_debug_loc, 0, 0 },
|
|
{ { ".debug_pubtypes", NULL, 0, 0 },
|
|
display_debug_pubnames, 0, 0 },
|
|
{ { ".debug_ranges", NULL, 0, 0 },
|
|
display_debug_ranges, 0, 0 },
|
|
{ { ".debug_static_func", NULL, 0, 0 },
|
|
display_debug_not_supported, 0, 0 },
|
|
{ { ".debug_static_vars", NULL, 0, 0 },
|
|
display_debug_not_supported, 0, 0 },
|
|
{ { ".debug_types", NULL, 0, 0 },
|
|
display_debug_not_supported, 0, 0 },
|
|
{ { ".debug_weaknames", NULL, 0, 0 },
|
|
display_debug_not_supported, 0, 0 }
|
|
};
|