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ec604facdba26c295e36cb15c0e119b9e8d318b3
libdwarf-code/dwarfdump/globals.h
David Anderson 82d8e00785 bugxml/data.txt 
Moved a couple functions between source files
and made them static. A couple commentary changes.
print_frames.c, though, needed hardening against
corrupt frame data.
dwarfdump/globals.h
dwarfdump/print_aranges.c
dwarfdump/print_die.c
dwarfdump/print_frames.c
dwarfdump/print_sections.c

All data reads from an object ensure the
read is actually in a section.
It is always possible something was overlooked, but
all the reading macros and functions now do checks.
libdwarf/dwarf_arange.c
libdwarf/dwarf_die_deliv.c
libdwarf/dwarf_errmsg_list.c
libdwarf/dwarf_form.c
libdwarf/dwarf_frame.c
libdwarf/dwarf_frame2.c
libdwarf/dwarf_global.c
libdwarf/dwarf_line.c
libdwarf/dwarf_line_table_reader_common.c
libdwarf/dwarf_loc.c
libdwarf/dwarf_loc2.c
libdwarf/dwarf_macro5.c
libdwarf/dwarf_opaque.h
libdwarf/dwarf_print_lines.c
libdwarf/dwarf_query.c
libdwarf/dwarf_ranges.c
libdwarf/dwarf_util.c
libdwarf/dwarf_util.h
libdwarf/dwarf_xu_index.c
libdwarf/libdwarf.h.in
2016-05-12 07:39:36 -07:00

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/*
Copyright (C) 2000,2004,2005 Silicon Graphics, Inc. All Rights Reserved.
Portions Copyright (C) 2007-2012 David Anderson. All Rights Reserved.
Portions Copyright 2012 SN Systems Ltd. All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the terms of version 2 of the GNU General Public License as
published by the Free Software Foundation.
This program is distributed in the hope that it would be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Further, this software is distributed without any warranty that it is
free of the rightful claim of any third person regarding infringement
or the like. Any license provided herein, whether implied or
otherwise, applies only to this software file. Patent licenses, if
any, provided herein do not apply to combinations of this program with
other software, or any other product whatsoever.
You should have received a copy of the GNU General Public License along
with this program; if not, write the Free Software Foundation, Inc., 51
Franklin Street - Fifth Floor, Boston MA 02110-1301, USA.
*/
#ifndef globals_INCLUDED
#define globals_INCLUDED
#ifdef __cplusplus
extern "C" {
#endif
#include "config.h"
#if (!defined(HAVE_RAW_LIBELF_OK) && defined(HAVE_LIBELF_OFF64_OK) )
/* At a certain point libelf.h requires _GNU_SOURCE.
here we assume the criteria in configure determine that
usefully.
*/
#define _GNU_SOURCE 1
#endif
#include "warningcontrol.h"
/* We want __uint32_t and __uint64_t and __int32_t __int64_t
properly defined but not duplicated, since duplicate typedefs
are not legal C.
HAVE___UINT32_T
HAVE___UINT64_T will be set by configure if
our 4 types are predefined in compiler
*/
#if (!defined(HAVE___UINT32_T)) && defined(HAVE_SGIDEFS_H)
#include <sgidefs.h> /* sgidefs.h defines them */
#define HAVE___UINT32_T 1
#define HAVE___UINT64_T 1
#endif
#if (!defined(HAVE___UINT32_T)) && defined(HAVE_SYS_TYPES_H) && defined(HAVE___UINT32_T_IN_SYS_TYPES_H)
# include <sys/types.h>
/* we assume __[u]int32_t and __[u]int64_t defined
since __uint32_t defined in the sys/types.h in use */
#define HAVE___UINT32_T 1
#define HAVE___UINT64_T 1
#endif
#ifndef HAVE___UINT32_T
typedef int __int32_t;
typedef unsigned __uint32_t;
#define HAVE___UINT32_T 1
#endif
#ifndef HAVE___UINT64_T
typedef long long __int64_t;
typedef unsigned long long __uint64_t;
#define HAVE___UINT64_T 1
#endif
#include <stdio.h>
#include <stdarg.h> /* For va_start va_arg va_list */
#include <stdlib.h>
#include <string.h>
/* Windows specific */
#ifdef HAVE_STDAFX_H
#include "stdafx.h"
#endif /* HAVE_STDAFX_H */
#ifdef HAVE_ELF_H
#include <elf.h>
#endif
#ifdef HAVE_LIBELF_H
#include <libelf.h>
#else
#ifdef HAVE_LIBELF_LIBELF_H
#include <libelf/libelf.h>
#endif
#endif
#include <dwarf.h>
#include <libdwarf.h>
#ifdef HAVE_REGEX
#include <regex.h>
#endif
#include "checkutil.h"
#ifndef BOOLEAN_TYPEDEFED
#define BOOLEAN_TYPEDEFED
typedef int boolean;
#endif /* BOOLEAN_TYPEDEFED */
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FAILED
#define FAILED 1
#endif
/* Used to try to avoid leakage when we hide errors. */
#define DROP_ERROR_INSTANCE(d,r,e) \
if (r == DW_DLV_ERROR) { \
dwarf_dealloc(d,e,DW_DLA_ERROR); \
e = 0; \
}
/* size of attrib_buffer, defined in print_die.c */
#define ATTRIB_BUFSIZ 999
typedef struct {
int checks;
int errors;
} Dwarf_Check_Result;
extern boolean do_check_dwarf;
extern boolean do_print_dwarf;
extern boolean record_dwarf_error; /* A test has failed, this
is normally set FALSE shortly after being set TRUE, it is
a short-range hint we should print something we might not
otherwise print (under the circumstances). */
/* Compilation Unit information for improved error messages.
If the strings are too short we just truncate so fixed length
here is fine. */
#define COMPILE_UNIT_NAME_LEN 512
extern char PU_name[COMPILE_UNIT_NAME_LEN]; /* PU Name */
extern char CU_name[COMPILE_UNIT_NAME_LEN]; /* CU Name */
extern char CU_producer[COMPILE_UNIT_NAME_LEN]; /* CU Producer Name */
/* Set TRUE if you want to simply assume strings to be
printed are safe to print. Leave FALSE if you want
dangerous or unprintable characters to be switched to the
character '?'. */
extern boolean no_sanitize_string_garbage;
extern boolean seen_PU; /* Detected a PU. */
extern boolean seen_CU; /* Detected a CU. */
extern boolean need_CU_name; /* Need CU name. */
extern boolean need_CU_base_address; /* Need CU Base address. */
extern boolean need_CU_high_address; /* Need CU High address. */
extern boolean need_PU_valid_code; /* Need PU valid code. */
extern boolean seen_PU_base_address; /* Detected a Base address for PU */
extern boolean seen_PU_high_address; /* Detected a High address for PU */
extern Dwarf_Addr PU_base_address; /* PU Base address */
extern Dwarf_Addr PU_high_address; /* PU High address */
extern Dwarf_Off DIE_offset; /* DIE offset in compile unit. */
extern Dwarf_Off DIE_overall_offset; /* DIE offset in .debug_info. */
/* Current CU information for better error reporting. */
extern Dwarf_Off DIE_CU_offset; /* CU DIE offset in compile unit */
extern Dwarf_Off DIE_CU_overall_offset; /* CU DIE offset in .debug_info */
extern Dwarf_Addr CU_base_address; /* CU Base address. See ranges. */
extern Dwarf_Addr CU_low_address; /* CU lowest addr. */
extern Dwarf_Addr CU_high_address; /* CU High address. */
extern int current_section_id; /* Section being process. */
/* Ranges and Location tables for better error checking: see
dwarfdump.c comments for more information. */
extern Bucket_Group *pRangesInfo;
extern Bucket_Group *pLinkonceInfo;
extern Bucket_Group *pVisitedInfo;
/* Display parent/children when in wide format. */
extern boolean display_parent_tree;
extern boolean display_children_tree;
extern int stop_indent_level;
/* Print search results when in wide format. */
extern boolean search_wide_format;
extern boolean search_is_on;
/* Calculate wasted space */
extern void calculate_attributes_usage(Dwarf_Half attr,Dwarf_Half theform,
Dwarf_Unsigned value);
/* Able to generate report on search */
extern const char *search_any_text;
extern const char *search_match_text;
extern const char *search_regex_text;
extern int search_occurrences;
#ifdef HAVE_REGEX
extern regex_t search_re;
#endif
extern boolean is_strstrnocase(const char *data, const char *pattern);
/* Options to enable debug tracing. */
#define MAX_TRACE_LEVEL 10
extern int nTrace[MAX_TRACE_LEVEL + 1];
#define DUMP_OPTIONS 0 /* Dump options. */
#define DUMP_RANGES_INFO 1 /* Dump RangesInfo Table. */
#define DUMP_LOCATION_SECTION_INFO 2 /* Dump Location (.debug_loc) Info. */
#define DUMP_RANGES_SECTION_INFO 3 /* Dump Ranges (.debug_ranges) Info. */
#define DUMP_LINKONCE_INFO 4 /* Dump Linkonce Table. */
#define DUMP_VISITED_INFO 5 /* Dump Visited Info. */
#define dump_options nTrace[DUMP_OPTIONS]
#define dump_ranges_info nTrace[DUMP_RANGES_INFO]
#define dump_location_section_info nTrace[DUMP_LOCATION_SECTION_INFO]
#define dump_ranges_section_info nTrace[DUMP_RANGES_SECTION_INFO]
#define dump_linkonce_info nTrace[DUMP_LINKONCE_INFO]
#define dump_visited_info nTrace[DUMP_VISITED_INFO]
/* Section IDs */
#define DEBUG_ABBREV 1
#define DEBUG_ARANGES 2
#define DEBUG_FRAME 3
#define DEBUG_INFO 4
#define DEBUG_LINE 5
#define DEBUG_LOC 6
#define DEBUG_MACINFO 7
#define DEBUG_PUBNAMES 8
#define DEBUG_RANGES 9
#define DEBUG_STATIC_VARS 10
#define DEBUG_STATIC_FUNC 11
#define DEBUG_STR 12
#define DEBUG_WEAKNAMES 13
#define DEBUG_TYPES 14
#define DEBUG_GDB_INDEX 15
#define DEBUG_FRAME_EH_GNU 16
#define DEBUG_MACRO 17
extern int verbose;
extern boolean dense;
extern boolean ellipsis;
extern boolean use_mips_regnames;
extern boolean show_global_offsets;
extern boolean show_form_used;
extern boolean display_offsets;
extern boolean check_pubname_attr;
extern boolean check_attr_tag;
extern boolean check_tag_tree;
extern boolean check_type_offset;
extern boolean check_macros;
extern boolean check_decl_file;
extern boolean check_lines;
extern boolean check_ranges; /* Ranges (aranges & ranges) check */
extern boolean check_fdes;
extern boolean check_aranges;
extern boolean check_harmless;
extern boolean check_abbreviations;
extern boolean check_dwarf_constants;
extern boolean check_di_gaps;
extern boolean check_forward_decl;
extern boolean check_self_references;
extern boolean check_attr_encoding; /* Attributes encoding */
extern boolean suppress_nested_name_search;
extern boolean suppress_check_extensions_tables;
extern boolean check_duplicated_attributes;
/* lots of checks make no sense on a dwp debugfission object. */
extern boolean suppress_checking_on_dwp;
/* Print global (unique) error messages */
extern boolean print_unique_errors;
extern boolean found_error_message;
/* Print the information only if unique errors is set and it is first time */
#define PRINTING_UNIQUE (!found_error_message)
extern int break_after_n_units;
extern boolean check_names; /* Check for invalid names */
extern boolean check_verbose_mode; /* During '-k' mode, display errors */
extern boolean check_frames; /* Frames check */
extern boolean check_frames_extended;/* Extensive frames check */
extern boolean check_locations; /* Location list check */
extern boolean print_usage_tag_attr; /* Print tag-attr basic usage */
extern boolean print_usage_tag_attr_full; /* Print tag-attr full usage */
/* Check categories corresponding to the -k option */
typedef enum /* Dwarf_Check_Categories */ {
abbrev_code_result,
pubname_attr_result,
reloc_offset_result,
attr_tag_result,
tag_tree_result,
type_offset_result,
decl_file_result,
ranges_result,
lines_result,
aranges_result,
/* Harmless errors are errors detected inside libdwarf but
not reported via DW_DLE_ERROR returns because the errors
won't really affect client code. The 'harmless' errors
are reported and otherwise ignored. It is difficult to report
the error when the error is noticed by libdwarf, the error
is reported at a later time.
The other errors dwarfdump reports are also generally harmless
but are detected by dwarfdump so it's possble to report the
error as soon as the error is discovered. */
harmless_result,
fde_duplication,
frames_result,
locations_result,
names_result,
abbreviations_result,
dwarf_constants_result,
di_gaps_result,
forward_decl_result,
self_references_result,
attr_encoding_result,
duplicated_attributes_result,
total_check_result,
LAST_CATEGORY /* Must be last */
} Dwarf_Check_Categories;
struct section_high_offsets_s {
Dwarf_Unsigned debug_info_size;
Dwarf_Unsigned debug_abbrev_size;
Dwarf_Unsigned debug_line_size;
Dwarf_Unsigned debug_loc_size;
Dwarf_Unsigned debug_aranges_size;
Dwarf_Unsigned debug_macinfo_size;
Dwarf_Unsigned debug_pubnames_size;
Dwarf_Unsigned debug_str_size;
Dwarf_Unsigned debug_frame_size;
Dwarf_Unsigned debug_ranges_size;
Dwarf_Unsigned debug_pubtypes_size;
Dwarf_Unsigned debug_types_size;
Dwarf_Unsigned debug_macro_size;
Dwarf_Unsigned debug_str_offsets_size;
Dwarf_Unsigned debug_sup_size;
Dwarf_Unsigned debug_cu_index_size;
Dwarf_Unsigned debug_tu_index_size;
};
extern struct section_high_offsets_s section_high_offsets_global;
extern boolean info_flag;
enum line_flag_type_e {
singledw5, /* Meaning choose single table DWARF5 new interfaces. */
s2l, /* Meaning choose two-level DWARF5 new interfaces. */
orig, /* Meaning choose DWARF2,3,4 single level interface. */
orig2l /* Meaning choose DWARF 2,3,4 two-level interface. */
};
extern enum line_flag_type_e line_flag_selection;
extern boolean line_flag;
extern boolean line_skeleton_flag;
extern boolean line_print_pc; /* Print <pc> addresses. */
extern boolean use_old_dwarf_loclist;
extern boolean producer_children_flag; /* List of CUs per compiler */
extern boolean macro_flag; /* DWARF5. And DWARF4 macro extension */
extern boolean macinfo_flag; /* DWARF2,3,4. */
/* tsearch tree used in macro checking. */
extern void * macro_check_tree; /* DWARF5 macros. */
extern void * macinfo_check_tree; /* DWARF2,3,4 macros */
extern char cu_name[ ];
extern boolean cu_name_flag;
extern Dwarf_Off fde_offset_for_cu_low;
extern Dwarf_Off fde_offset_for_cu_high;
/* Process TAGs for checking mode and reset pRangesInfo table
if appropriate. */
extern void tag_specific_checks_setup(Dwarf_Half val,int die_indent_level);
extern const char *program_name;
extern void print_error_and_continue (Dwarf_Debug dbg, const char * msg,int res, Dwarf_Error err);
extern void print_error (Dwarf_Debug dbg, const char * msg,int res, Dwarf_Error err);
extern void print_line_numbers_this_cu (Dwarf_Debug dbg, Dwarf_Die in_die);
struct dwconf_s;
extern void print_frames (Dwarf_Debug dbg, int print_debug_frame,
int print_eh_frame,struct dwconf_s *);
extern void print_ranges (Dwarf_Debug dbg);
extern void print_pubnames (Dwarf_Debug dbg);
extern void print_macinfo (Dwarf_Debug dbg);
extern void print_infos (Dwarf_Debug dbg,Dwarf_Bool is_info);
extern void print_locs (Dwarf_Debug dbg);
extern void print_abbrevs (Dwarf_Debug dbg);
extern void print_strings (Dwarf_Debug dbg);
extern void print_aranges (Dwarf_Debug dbg);
extern void print_relocinfo (Dwarf_Debug dbg,unsigned reloc_map);
extern void print_static_funcs(Dwarf_Debug dbg);
extern void print_static_vars(Dwarf_Debug dbg);
enum type_type_e {SGI_TYPENAME, DWARF_PUBTYPES} ;
extern void print_types(Dwarf_Debug dbg,enum type_type_e type_type);
extern void print_weaknames(Dwarf_Debug dbg);
extern void print_exception_tables(Dwarf_Debug dbg);
/* Space used to record range information */
extern void allocate_range_array_info(void);
extern void release_range_array_info(void);
extern void record_range_array_info_entry(Dwarf_Off die_off,
Dwarf_Off range_off);
extern void check_range_array_info(Dwarf_Debug dbg);
struct esb_s;
extern void print_ranges_list_to_extra(Dwarf_Debug dbg,
Dwarf_Unsigned off,
Dwarf_Ranges *rangeset,
Dwarf_Signed rangecount,
Dwarf_Unsigned bytecount,
struct esb_s *stringbuf);
boolean should_skip_this_cu(Dwarf_Debug dbg, Dwarf_Die cu_die);
void get_address_size_and_max(Dwarf_Debug dbg,
Dwarf_Half * size,
Dwarf_Addr * max,
Dwarf_Error *err);
/* Returns the producer of the CU */
int get_cu_name(Dwarf_Debug dbg,Dwarf_Die cu_die,
Dwarf_Off dieprint_cu_offset,
char **short_name,char **long_name);
int get_producer_name(Dwarf_Debug dbg,Dwarf_Die cu_die,
Dwarf_Off dieprint_cu_offset,
struct esb_s *producername);
/* Get number of abbreviations for a CU */
extern void get_abbrev_array_info(Dwarf_Debug dbg,Dwarf_Unsigned offset);
/* Validate an abbreviation */
extern void validate_abbrev_code(Dwarf_Debug dbg,Dwarf_Unsigned abbrev_code);
extern void print_die_and_children(
Dwarf_Debug dbg,
Dwarf_Die in_die,
Dwarf_Off dieprint_cu_offset,
Dwarf_Bool is_info,
char **srcfiles,
Dwarf_Signed cnt);
extern boolean print_one_die(
Dwarf_Debug dbg,
Dwarf_Die die,
Dwarf_Off dieprint_cu_offset,
boolean print_information,
int die_indent_level,
char **srcfiles,
Dwarf_Signed cnt,
boolean ignore_die_stack);
/* Check for specific compiler */
extern boolean checking_this_compiler(void);
extern void update_compiler_target(const char *producer_name);
extern void add_cu_name_compiler_target(char *name);
/* General error reporting routines. These were
macros for a short time and when changed into functions
they kept (for now) their capitalization.
The capitalization will likely change. */
extern void PRINT_CU_INFO(void);
extern void DWARF_CHECK_COUNT(Dwarf_Check_Categories category, int inc);
extern void DWARF_ERROR_COUNT(Dwarf_Check_Categories category, int inc);
extern void DWARF_CHECK_ERROR_PRINT_CU(void);
extern void DWARF_CHECK_ERROR(Dwarf_Check_Categories category,
const char *str);
extern void DWARF_CHECK_ERROR2(Dwarf_Check_Categories category,
const char *str1, const char *str2);
extern void DWARF_CHECK_ERROR3(Dwarf_Check_Categories category,
const char *str1, const char *str2, const char *strexpl);
extern void print_macinfo_by_offset(Dwarf_Debug dbg,Dwarf_Unsigned offset);
struct esb_s;
/* Eliminate control characters from the input,
leaving the input unchanged. Return pointer to
an ephemeral location (only callfor printf,
and only once per printf! */
const char * sanitized(const char *s);
extern Dwarf_Die current_cu_die_for_print_frames; /* This is
an awful hack, making current_cu_die_for_print_frames public.
But it enables cleaning up (doing all dealloc needed). */
/* defined in print_sections.c, die for the current compile unit,
used in get_fde_proc_name() */
extern void printreg(Dwarf_Unsigned reg,struct dwconf_s *config_data);
int get_proc_name(Dwarf_Debug dbg, Dwarf_Die die, Dwarf_Addr low_pc,
char *proc_name_buf, int proc_name_buf_len, void **pcMap);
void get_attr_value(Dwarf_Debug dbg, Dwarf_Half tag,
Dwarf_Die die,
Dwarf_Off die_cu_offset,
Dwarf_Attribute attrib,
char **srcfiles,
Dwarf_Signed cnt, struct esb_s *esbp,
int show_form,int local_verbose);
extern void dump_block(char *prefix, char *data, Dwarf_Signed len);
extern void format_sig8_string(Dwarf_Sig8 *data,struct esb_s *out);
extern void print_gdb_index(Dwarf_Debug dbg);
extern void print_debugfission_index(Dwarf_Debug dbg,const char *type);
void dwarfdump_print_one_locdesc(Dwarf_Debug dbg,
Dwarf_Locdesc * llbuf, /* 2014 interface */
Dwarf_Locdesc_c locs, /* 2015 interface */
Dwarf_Unsigned llent, /* Which locdesc is this */
Dwarf_Unsigned entrycount, /* count of DW_OP operators */
Dwarf_Addr baseaddr,
struct esb_s *string_out);
void clean_up_die_esb(void);
void clean_up_syms_malloc_data(void);
void safe_strcpy(char *out, long outlen, const char *in, long inlen);
void print_macros_5style_this_cu(Dwarf_Debug dbg, Dwarf_Die cu_die,
Dwarf_Bool in_import_list, Dwarf_Unsigned offset);
void reset_overall_CU_error_data(void);
void format_sig8_string(Dwarf_Sig8*data, struct esb_s *out);
/* Detailed attributes encoding space */
void print_attributes_encoding(Dwarf_Debug dbg);
/* Detailed tag and attributes usage */
void print_tag_attributes_usage(Dwarf_Debug dbg);
void print_any_harmless_errors(Dwarf_Debug dbg);
/* Definitions for printing relocations. */
#define DW_SECTION_REL_DEBUG_INFO 0
#define DW_SECTION_REL_DEBUG_LINE 1
#define DW_SECTION_REL_DEBUG_PUBNAMES 2
#define DW_SECTION_REL_DEBUG_ABBREV 3
#define DW_SECTION_REL_DEBUG_ARANGES 4
#define DW_SECTION_REL_DEBUG_FRAME 5
#define DW_SECTION_REL_DEBUG_LOC 6
#define DW_SECTION_REL_DEBUG_RANGES 7
#define DW_SECTION_REL_DEBUG_TYPES 8
#define DW_MASK_PRINT_ALL 0x00ff
/* Definitions for printing sections. */
#define DW_HDR_DEBUG_INFO 0x00000001 /* 0 */
#define DW_HDR_DEBUG_LINE 0x00000002 /* 1 */
#define DW_HDR_DEBUG_PUBNAMES 0x00000004 /* 2 */
#define DW_HDR_DEBUG_ABBREV 0x00000008 /* 3 */ /* 0x000f */
#define DW_HDR_DEBUG_ARANGES 0x00000010 /* 4 */
#define DW_HDR_DEBUG_FRAME 0x00000020 /* 5 */
#define DW_HDR_DEBUG_LOC 0x00000040 /* 6 */
#define DW_HDR_DEBUG_RANGES 0x00000080 /* 7 */ /* 0x00ff */
#define DW_HDR_DEBUG_STRING 0x00000100 /* 8 */
#define DW_HDR_DEBUG_PUBTYPES 0x00000200 /* 9 */
#define DW_HDR_DEBUG_TYPES 0x00000400 /* 10 */
#define DW_HDR_TEXT 0x00000800 /* 11 */ /* 0x0fff */
#define DW_HDR_HEADER 0x00001000 /* 12 */
#define DW_HDR_GDB_INDEX 0x00002000 /* 13 */
/* Mask to indicate all sections (by default) */
#define DW_HDR_ALL 0x80000000
#define DW_HDR_DEFAULT 0x00002fff
#ifdef HAVE_UNUSED_ATTRIBUTE
#define UNUSEDARG __attribute__ ((unused))
#else
#define UNUSEDARG
#endif
#ifdef __cplusplus
}
#endif
#endif /* globals_INCLUDED */
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