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230 Commits

Author SHA1 Message Date
Serge Lamikhov-Center
fc0293ebbd Explicit element size for array accessor 2021-08-13 09:40:49 +03:00
Serge Lamikhov-Center
91c8c7770a Add GNU specific types 2021-08-13 09:37:52 +03:00
Serge Lamikhov-Center
ef262285dc Add support for GNU hash lookup algorithm 2021-07-27 16:30:41 +03:00
Serge Lamikhov-Center
46b1e22414 Add section type verification for hash section 2021-07-23 16:58:06 +03:00
Artem Belevich
028b4117fa Update AMDGPU macros. 
The values are based on LLVM's ELF.h
https://github.com/llvm/llvm-project/blob/main/llvm/include/llvm/BinaryFormat/ELF.h

Related issue: ROCm-Developer-Tools/HIP#2259
 2021-06-17 09:51:51 +03:00
Serge Lamikhov-Center
79fcd11595 Add check for data endianess flags 2021-06-05 16:46:24 +03:00
Serge Lamikhov-Center
0fac6ce45b Add a convinience function 'add_section()' to segment class 
It is not clear why this hasn't been done initially
 2021-04-08 17:03:05 +03:00
Serge Lamikhov-Center
f591a3b74e Add explicit declaration of move constructor and move assignment 2021-03-30 00:59:06 +03:00
Serge Lamikhov-Center
29114f6538 Explicetly delete the copy constructor and assignment operator 2021-03-29 21:17:57 +03:00
Serge Lamikhov-Center
7409369fc0 Change the data segment alignment for newer Linux kernels 2021-03-29 01:22:43 +03:00
Serge Lamikhov-Center
a01d7285cf Generated by newer automake tools 2021-03-28 10:16:39 +03:00
Serge Lamikhov-Center
becd79d05c Support stringstream by filling gaps in output stream 2021-03-27 21:14:56 +03:00
Serge Lamikhov-Center
57e614a486 Remove postfix underscore in parameter names 2021-02-05 10:40:18 +02:00
Serge Lamikhov-Center
762c59a2bb Change copyright period 2021-01-19 09:43:01 +02:00
Serge Lamikhov-Center
7e9c0a4675 In spite of the previous commit, clang-formatter inserts multi-line comments. 
This is an attempt to avoid this
 2021-01-19 09:37:18 +02:00
Kevin Stefanik
8ab497c57b Removing backslashes from AMDGPU comments so as not to trigger compiler warnings. 2021-01-19 08:41:42 +02:00
Serge Lamikhov-Center
eaae4e1e13 Fix endianness conversion for array acceessor 2021-01-13 11:18:23 +02:00
Serge Lamikhov-Center
8037e5a42a Add 'validate' function to C language wrapper 2021-01-08 00:11:20 +02:00
Martin Bickel
3e55690e6d Added new check for section/progHeader consistency 2021-01-07 12:43:21 +02:00
Serge Lamikhov-Center
def3653abc Increase version number to 3.9 2020-12-22 14:30:16 +02:00
Serge Lamikhov-Center
22ff134363 Address array section accessor added 
The accessor is useful for manipulation of such sections as .ctors,
.dtors, .init_array and .fini_array
 2020-12-22 14:10:16 +02:00
Serge Lamikhov-Center
0368a08624 Add more machine codes 2020-12-21 10:57:32 +02:00
Serge Lamikhov-Center
a8831c5d74 Address warnings reported by MS VS analyzer 2020-10-30 18:06:26 +02:00
Serge Lamikhov-Center
3c434f7587 Address warnings reported by MS VS 2020-10-30 17:54:13 +02:00
Serge Lamikhov-Center
f02366804f More apropriate way to avoid macro extraction 2020-10-17 23:57:58 +03:00
Serge Lamikhov-Center
0826f15d0b Use funny syntax to prevent min() macro in MSVS 2020-10-17 22:51:53 +03:00
Serge Lamikhov-Center
49c2de32ec In dynamic section count entries until DT_NULL; Add const for modinfo params 2020-10-16 01:29:26 +03:00
Serge Lamikhov-Center
49c676ad06 Remove unused var; Use std::swap() 2020-10-10 08:51:11 +03:00
Serge Lamikhov-Center
4c0153d752 C language interoperability example added 2020-10-10 00:31:35 +03:00
Serge Lamikhov-Center
937978973f Remove usage of try/catch blocks 2020-08-28 22:38:40 -07:00
Serge Lamikhov-Center
e18e5bc261 Use a header for version information 2020-08-24 10:24:09 -07:00
Serge Lamikhov-Center
c92b6f3fb5 Fix a VS warning 2020-08-23 11:22:34 +03:00
Serge Lamikhov-Center
e00bf98230 Add modinfo to VS project 2020-08-23 09:57:21 +03:00
Serge Lamikhov-Center
761d70da2c Add dump function for .modinfo section 2020-08-22 23:10:11 -07:00
Serge Lamikhov-Center
b4c245f5a8 Add .modinfo section accessor 2020-08-22 15:11:58 -07:00
Serge Lamikhov-Center
9c739b49a0 Reformat sources by using clang-format 
It is not perfect (and, probably, it is worser than it was before), but, it is automatic
 2020-08-21 07:56:08 -07:00
Serge Lamikhov-Center
46acd5c16d Pass all used vars by reference 2020-08-21 00:55:28 -07:00
Serge Lamikhov-Center
aa4d2c5a74 Substitute memcpy() by std::copy() 2020-08-20 02:13:04 -07:00
Serge Lamikhov-Center
fe17eb40aa Implement swap_symbols() for relocation section. 
The function can be used as a callback for arrange_local_symbols()
 2020-08-19 22:44:58 -07:00
Serge Lamikhov-Center
d255a35259 Address warnings reported by VS 2020-08-19 23:58:07 +03:00
Serge Lamikhov-Center
c6e5eb0aad Update Copyright period 2020-08-19 13:47:20 -07:00
Serge Lamikhov-Center
6d3d5467a2 Permit substitution of relocation entry by using set_entry() function call 2020-08-19 13:39:15 -07:00
Serge Lamikhov-Center
5a5ba2dc09 Add a callback to arrange_local_symbols() 2020-08-19 07:28:47 -07:00
Serge Lamikhov-Center
8e0b5754e4 arrange_local_symbols() added 
ELF standard requires that all STB_LOCAL symbols will go prior others and sh_info entry will contain the number of the local symbols
 2020-08-18 12:57:45 -07:00
Serge Lamikhov-Center
d2c3fb6a14 Refactoring - remove unnecessary check 2020-08-15 18:56:13 +03:00
Serge Lamikhov-Center
8d79cc0929 Add function source delimiters 2020-08-15 18:33:50 +03:00
Serge Lamikhov-Center
a59cbf6674 Alighn code with whitespaces 2020-08-08 09:55:42 -07:00
Serge Lamikhov-Center
5f904722f6 New machine numbers added 2020-08-08 08:23:25 -07:00
Serge Lamikhov-Center
b1961db18b Fix compilation warnings in VS 2019 v16.7.0 2020-08-07 20:27:13 +03:00
Serge Lamikhov-Center
a735f412ec Remove unused header 2020-06-10 08:01:20 -07:00
Serge Lamikhov-Center
9cf8821c03 Prevents seg fault described in #42 2020-06-10 06:53:29 -07:00
Serge Lamikhov-Center
b56b93de1b Remove implementation functions from section interface 2020-06-09 23:46:41 -07:00
Pierre Bélissent
6e237576f0 Issue serge1/ELFIO#19: Test case to reproduce, and correction 2020-06-06 22:26:12 +03:00
Serge Lamikhov-Center
453929342f Don't access a note entry in case namesz is less than 1 2020-05-29 05:26:43 -07:00
Serge Lamikhov-Center
a935b5472e The counter type for 'symbol_tables' has been changed to Elf_Xword 2020-05-29 13:54:28 +03:00
Serge Lamikhov-Center
64626605ed Remove tab characters 2020-02-22 18:22:23 +02:00
Serge Lamikhov-Center
3e4a2fabfd Add tests for the new flavor of get_symbol() 2020-02-22 11:31:27 +02:00
Serge Lamikhov-Center
46d081d5df Add autoxxx tools to the ELFIOTest directory 2020-02-15 23:24:20 +02:00
Alfred Bratterud
d8e8a4cbb4 Added get_symbol by value and generic linear search 2020-02-15 23:10:01 +02:00
Serge Lamikhov-Center
15cd4b1bf2 Remove tabs 2019-04-28 09:00:14 +03:00
Gleb Struchalin
15340ddf9c Avoid warning about initialization reorder (-Wreorder) on GCC 2019-04-28 08:57:04 +03:00
Serge Lamikhov-Center
cdafaa0abf Prevent potential dereferencing of NULL pointer 2019-04-19 15:05:50 +03:00
Serge Lamikhov-Center
858b7a3b70 Names and tabs refactoring 2019-04-19 14:52:20 +03:00
Gleb Struchalin
a314b28193 Replaced tabs by spaces 2019-04-19 13:55:00 +03:00
Gleb Struchalin
925af0d3d5 Added overload to elfio::save which accepts std::ostream 2019-04-19 13:55:00 +03:00
Gleb Struchalin
e64acb2b2e Added parentheses in ELF64_R_INFO macro for 's' parameter 2019-04-19 13:55:00 +03:00
Vinicius Rangel
350008420f dynamic_section_accessor#add_entry params updated 
Changed useless by-reference params to by-value
which forbids number literals (i.e. DT_*)

Added missing const keyword to std::string& parameter
 2019-04-19 09:24:40 +03:00
Serge Lamikhov-Center
cb3bd43ca5 Avoid warning regarding incompatible integer types 2018-11-03 18:11:32 +02:00
Alex Voicu
9f1e1ae164 Fix alignment. 2018-11-02 23:16:14 +02:00
Alex Voicu
144946f753 Add support for AMDGPU specific ELF bits. 2018-11-02 23:16:14 +02:00
Serge Lamikhov-Center
9461ce1167 Fix "Call to virtual function during construction". Thanks to Pavel Kryukov 2018-11-02 23:05:26 +02:00
Pavel I. Kryukov
e4abc190d6 Cast -1 to Elf_Half explicitly to suppress Visual Studio warning 2018-08-25 22:41:06 +03:00
Pavel I. Kryukov
6a2e8c78b0 Avoid hiding local variable by another local variable in elfio::load_sections 2018-08-25 22:40:00 +03:00
Jingxuan He
4b9ff89770 modify get_ordered_segments 2018-05-05 19:32:49 +03:00
Tobias Klauser
37ebcd91b8 Fix two gcc -Wignored-qualifiers warnings 
Fix the following two gcc warnings:

elfio/elfio_section.hpp:50:36: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
     const size_t get_stream_size() const
                                    ^
elfio/elfio_segment.hpp:99:23: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
     get_stream_size() const
 2018-05-05 19:30:09 +03:00
alvaro
bc5f17b0fc Fix more NULL dereferences 
Crash 7d695153fd8052529d480c2352d4ada33a44bada
 2017-10-04 20:47:51 +03:00
alvaro
abab994411 Fix NULL deference for no ELF files 
Fix crash 060833f08dc14d1712428742b3cad7af17b36bb7
 2017-10-04 20:47:51 +03:00
alvaro
bd5f2128ae Check size for segment 
Fix crash b82f05b0b25c8fdc98480e6d76b6d5f9164ae2bc

Running: crash-b82f05b0b25c8fdc98480e6d76b6d5f9164ae2bc
==2850==WARNING: AddressSanitizer failed to allocate 0x400000004000001 bytes
==2850==AddressSanitizer's allocator is terminating the process instead of returning 0
==2850==If you don't like this behavior set allocator_may_return_null=1
==2850==AddressSanitizer CHECK failed: /home/alvaro/tools/llvm/llvm/projects/compiler-rt/lib/sanitizer_common/sanitizer_allocator.cc:22
1 "((0)) != (0)" (0x0, 0x0)
 2017-10-04 20:47:51 +03:00
alvaro
1a3cb25a7c Fix oob read terminating data with 0 
Fix crash e3c41070342cf84dea077356ddbb8ebf4326a601

==12073==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6110000003bb at pc 0x0000004c234c bp 0x7fcf6359ec30 sp 0x7fcf6359e3
e0
READ of size 11 at 0x6110000003bb thread T0
    #0 0x4c234b in __interceptor_strlen.part.30 /home/alvaro/tools/llvm/llvm/projects/compiler-rt/lib/asan/../sanitizer_common/sanitize
r_common_interceptors.inc:301
    #1 0x7165e6579d87 in std::char_traits<char>::length(char const*) /build/gcc-multilib/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3
/include/bits/char_traits.h:269
    #2 0x7165e6579d87 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std
::allocator<char> const&) /build/gcc-multilib/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/basic_string.h:495
    #3 0x5c3333 in ELFIO::elfio::load_sections(std::istream&) /home/alvaro/fuzzers/elfio/ELFIO/examples/libfuzzer/../../elfio/elfio.hpp
:413:44
 2017-10-04 20:47:51 +03:00
alvaro
39f8614f17 Added stream_size into section 
This will allow to perform some security checks when reading size values
from ELF file

Fix crash e1ce7cecf01cf800397a4302854d9d76fa19763c
 2017-10-04 20:47:51 +03:00
Vašek Potoček
972f89e022 Better support for read-only ELF access 2017-10-04 20:33:10 +03:00
Vašek Potoček
ced83b14be More 386 relocation types 2017-10-04 20:15:53 +03:00
Serge Lamikhov-Center
fbf8eafc2d Permit updating of e_version field of ELF header 2017-03-28 00:35:17 +03:00
Martin Bickel
b4127676ba Fix calculation of section alignment 2017-03-06 22:28:46 +02:00
Martin Bickel
3385408d6b Rephrase condition of is_sect_in_seg() to make it more intuitive 2017-03-06 22:28:46 +02:00
Martin Bickel
fe78d06e81 Segment align updated when saving, not loading 
After loading, the data model in memory should resemble the original ELF file as closely as possible,
so that ELF viewers based on elfio will print out the original values, not the calculated ones.
 2017-02-18 19:25:21 +02:00
Martin Bickel
6c19078803 Fixed section to segment mapping for 0-length sections 2017-02-18 19:25:21 +02:00
Martin Bickel
d800c7b295 When saving a previously loaded ELF file, don't shrink segments' memory size 2017-01-16 20:38:37 +02:00
Martin Bickel
213dbedac2 Add sanity check when calculating alignment 2017-01-16 20:38:37 +02:00
Martin Bickel
fb5ec079ba new method for validating the loaded ELF file 2017-01-16 20:38:37 +02:00
Martin Bickel
d0cb172474 Expose getter for section.offset 2017-01-16 20:38:37 +02:00
Martin Bickel
a0de1960d6 Check for errors when loading segments 2017-01-16 20:38:37 +02:00
Serge Lamikhov-Center
878247108f Ignore sections of zero size. Thanks to Martin Bickel 2016-12-20 20:11:20 +02:00
Tobias Klauser
446e0c215c elfio_note: fix MSVC compiler warning 
Fix the following MSVC compiler warning:

elfio/elfio_note.hpp(77): warning C4267: 'initializing' : conversion from 'size_t' to 'ELFIO::Elf_Word', possible loss of data

by changing the type of max_name_sizei to Elf_Xword, as
note_secton->get_size() returns Elf_Xword and note_start_positions also
contains members of type Elf_Xword.
 2016-10-06 12:07:20 +02:00
Tobias Klauser
af4140a122 elfio: don't cast away const qualifiers 
Don't cast away const qualifiers when accessing const data (e.g. section
data). This fixes the warnings such as the following when compiling with
GCC and the -Wcast-qual flag set:

warning: cast from type ‘const char*’ to type ‘ELFIO::Elf_Word* {aka unsigned int*}’ casts away qualifiers [-Wcast-qual]
 2016-09-22 23:22:39 +03:00
Yutetsu TAKATSUKASA
fb26cf1002 resolve compiler warning by "-Wsign-compare" 2016-09-18 10:44:16 +09:00
Serge Lamikhov-Center
b2525656a5 New e_machine numbers added 2016-07-10 12:36:52 +03:00
Serge Lamikhov-Center
3c5620d46d Make note section entries for 64-bit ELF file be the same as for 32-bit file 
There are discrepancies in documentations. SCO documentation
(http://www.sco.com/developers/gabi/latest/ch5.pheader.html#note_section)
requires 8 byte entries alignment for 64-bit ELF file,
but Oracle's definition uses the same structure
for 32-bit and 64-bit formats.
(https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-18048.html)

It looks like EM_X86_64 Linux implementation is similar to Oracle's
definition. Therefore, the same alignment works for both formats
 2016-07-10 11:35:23 +03:00
Kevin Klues
e3e0d6dbdb Fixed off-by-one error in 'name' of add_note() function. 
Previously, when assigning 'name' as a string, it's length was specified
using the full length of 'namesz'. However, this length includes the
trailing '\0' of the underlying char[]. This ultimately causes the C++
string that is created to (incorrectly) contain the '\0' character as
well. This leads to problems where e.g. the following will return false,
even when 'name' itself actually contains the string "GNU\0":

  if (name == "GNU") {
    return true;
  }
  return false;

To fix this, we should only include the length of the string minus the
trailing '\0'.
 2016-07-02 11:02:20 -07:00
Serge Lamikhov-Center
8e7a29e128 Refactoring 2016-04-23 17:58:34 +03:00