Commit Graph

21 Commits

Author SHA1 Message Date
Fangrui Song
894e54f898 [llvm-readobj] Allow --hex-dump/--string-dump to dump multiple sections
1) `-x foo` currently dumps one `foo`. This change makes it dump all `foo`.
2) `-x foo -x foo` currently dumps `foo` twice. This change makes it dump `foo` once.
   In addition, if foo has section index 9, `-x foo -x 9` dumps `foo` once.
3) Give a warning instead of an error if `foo` does not exist.

The new behaviors match GNU readelf.

Also, print a new line as a separator between two section dumps.
GNU readelf uses two lines, but one seems good enough.

Reviewed By: grimar, jhenderson

Differential Revision: https://reviews.llvm.org/D63475

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363683 91177308-0d34-0410-b5e6-96231b3b80d8
2019-06-18 14:01:03 +00:00
Fangrui Song
7287acf23f Recommit [Object] Change object::SectionRef::getContents() to return Expected<StringRef>
r360876 didn't fix 2 call sites in clang.

Expected<ArrayRef<uint8_t>> may be better but use Expected<StringRef> for now.

Follow-up of D61781.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360892 91177308-0d34-0410-b5e6-96231b3b80d8
2019-05-16 13:24:04 +00:00
Hans Wennborg
71eaa4f97d Revert r360876 "[Object] Change object::SectionRef::getContents() to return Expected<StringRef>"
It broke the Clang build, see llvm-commits thread.

> Expected<ArrayRef<uint8_t>> may be better but use Expected<StringRef> for now.
>
> Follow-up of D61781.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360878 91177308-0d34-0410-b5e6-96231b3b80d8
2019-05-16 12:08:34 +00:00
Fangrui Song
a4d6bb66d0 [Object] Change object::SectionRef::getContents() to return Expected<StringRef>
Expected<ArrayRef<uint8_t>> may be better but use Expected<StringRef> for now.

Follow-up of D61781.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360876 91177308-0d34-0410-b5e6-96231b3b80d8
2019-05-16 11:33:48 +00:00
Stephen Tozer
4432c83404 [llvm-readobj] Reapply: Improve error message for --string-dump
This is a resubmission of a previous patch that caused test failures,
with the fixes for the relevant tests included.

Fixes bug 40630: https://bugs.llvm.org/show_bug.cgi?id=40630

This patch changes the error message when the section specified by
--string-dump cannot be found by including the name of the section in
the error message and changing the prefix text to not imply that the
file itself was invalid. As part of this change some uses of
std::error_code have been replaced with the llvm Error class to better
encapsulate the error info (rather than passing File strings around),
and the WithColor class replaces string literal error prefixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358395 91177308-0d34-0410-b5e6-96231b3b80d8
2019-04-15 11:17:48 +00:00
Stephen Tozer
afee28400c Revert "[llvm-readobj] Improve error message for --string-dump"
This reverts commit 681b0798dbbc6b3500c9930977ec8a274b142acb.

Reverted due to causing build failures: llvm-svn: 357772

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357774 91177308-0d34-0410-b5e6-96231b3b80d8
2019-04-05 16:32:25 +00:00
Stephen Tozer
ca728263d8 [llvm-readobj] Improve error message for --string-dump
Fixes bug 40630: https://bugs.llvm.org/show_bug.cgi?id=40630

This patch changes the error message when the section specified by
--string-dump cannot be found by including the name of the section in
the error message and changing the prefix text to not imply that the
file itself was invalid. As part of this change some uses of
std::error_code have been replaced with the llvm Error class to better
encapsulate the error info (rather than passing File strings around),
and the WithColor class replaces string literal error prefixes.

Differential Revision: https://reviews.llvm.org/D59946

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357772 91177308-0d34-0410-b5e6-96231b3b80d8
2019-04-05 16:15:50 +00:00
Stephen Tozer
1fc8fc0b09 [format] Add correct punctuation to comment
Test commit that adds a grammatically correct full stop to a single
comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357771 91177308-0d34-0410-b5e6-96231b3b80d8
2019-04-05 15:59:07 +00:00
Fangrui Song
0fb7679253 [llvm-readobj] Delete unused variable. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@356246 91177308-0d34-0410-b5e6-96231b3b80d8
2019-03-15 10:34:57 +00:00
Chandler Carruth
6b547686c5 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351636 91177308-0d34-0410-b5e6-96231b3b80d8
2019-01-19 08:50:56 +00:00
Sid Manning
9afc48e25a [llvm-readobj] Set correct offset when dumping hex section output.
Differential Revision: https://reviews.llvm.org/D56369

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351356 91177308-0d34-0410-b5e6-96231b3b80d8
2019-01-16 16:17:19 +00:00
Michael Kruse
6069e66e2c [ADT] Replace std::isprint by llvm::isPrint.
The standard library functions ::isprint/std::isprint have platform-
and locale-dependent behavior which makes LLVM's output less
predictable. In particular, regression tests my fail depending on the
implementation of these functions.

Implement llvm::isPrint in StringExtras.h with a standard behavior and
replace all uses of ::isprint/std::isprint by a call it llvm::isPrint.
The function is inlined and does not look up language settings so it
should perform better than the standard library's version.

Such a replacement has already been done for isdigit, isalpha, isxdigit
in r314883. gtest does the same in gtest-printers.cc using the following
justification:

    // Returns true if c is a printable ASCII character.  We test the
    // value of c directly instead of calling isprint(), which is buggy on
    // Windows Mobile.
    inline bool IsPrintableAscii(wchar_t c) {
      return 0x20 <= c && c <= 0x7E;
    }

Similar issues have also been encountered by Julia:
https://github.com/JuliaLang/julia/issues/7416

I noticed the problem myself when on Windows isprint('\t') started to
evaluate to true (see https://stackoverflow.com/questions/51435249) and
thus caused several unit tests to fail. The result of isprint doesn't
seem to be well-defined even for ASCII characters. Therefore I suggest
to replace isprint by a platform-independent version.

Differential Revision: https://reviews.llvm.org/D49680

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338034 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-26 15:31:41 +00:00
Paul Semel
cac968ea78 [llvm-readobj] Generic hex-dump option
Helpers are available to make this option file format independant. This
patch adds the feature for Wasm file format. It doesn't change the
behavior of the other file format handling.

Differential Revision: https://reviews.llvm.org/D49545

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337896 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-25 10:04:37 +00:00
Reid Kleckner
a34dfe6542 Fix -Wsign-compare in llvm-readobj
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337490 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-19 19:58:22 +00:00
Paul Semel
9f006d32f1 [llvm-readobj] Generic -string-dump option
Differential Revision: https://reviews.llvm.org/D49470

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337408 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-18 18:00:41 +00:00
Paul Semel
94b0940142 [llvm-readobj] Add -hex-dump (-x) option
Differential Revision: https://reviews.llvm.org/D48281

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336782 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-11 10:00:29 +00:00
Adrian Prantl
26b584c691 Remove \brief commands from doxygen comments.
We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

  for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46290

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@331272 91177308-0d34-0410-b5e6-96231b3b80d8
2018-05-01 15:54:18 +00:00
Zachary Turner
2448e9f766 Move llvm-readobj/StreamWriter to Support.
We wish to re-use this from llvm-pdbdump, and it provides a nice
way to print structured data in scoped format that could prove
useful for many other dumping tools as well.  Moving to support
and changing name to ScopedPrinter to better reflect its purpose.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268342 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-03 00:28:04 +00:00
Mehdi Amini
f6071e14c5 [NFC] Header cleanup
Removed some unused headers, replaced some headers with forward class declarations.

Found using simple scripts like this one:
clear && ack --cpp -l '#include "llvm/ADT/IndexedMap.h"' | xargs grep -L 'IndexedMap[<]' | xargs grep -n --color=auto 'IndexedMap'

Patch by Eugene Kosov <claprix@yandex.ru>

Differential Revision: http://reviews.llvm.org/D19219

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266595 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-18 09:17:29 +00:00
Chandler Carruth
9f20a4c6ce Re-sort #include lines again, prior to moving headers around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199080 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-13 08:04:33 +00:00
Eric Christopher
76e70f340c Implements low-level object file format specific output for COFF and
ELF with support for:

- File headers
- Section headers + data
- Relocations
- Symbols
- Unwind data (only COFF/Win64)

The output format follows a few rules:
- Values are almost always output one per line (as elf-dump/coff-dump already do). - Many values are translated to something readable (like enum names), with the raw value in parentheses.
- Hex numbers are output in uppercase, prefixed with "0x".
- Flags are sorted alphabetically.
- Lists and groups are always delimited.

Example output:
---------- snip ----------
Sections [
  Section {
    Index: 1
    Name: .text (5)
    Type: SHT_PROGBITS (0x1)
    Flags [ (0x6)
      SHF_ALLOC (0x2)
      SHF_EXECINSTR (0x4)
    ]
    Address: 0x0
    Offset: 0x40
    Size: 33
    Link: 0
    Info: 0
    AddressAlignment: 16
    EntrySize: 0
    Relocations [
      0x6 R_386_32 .rodata.str1.1 0x0
      0xB R_386_PC32 puts 0x0
      0x12 R_386_32 .rodata.str1.1 0x0
      0x17 R_386_PC32 puts 0x0
    ]
    SectionData (
      0000: 83EC04C7 04240000 0000E8FC FFFFFFC7  |.....$..........|
      0010: 04240600 0000E8FC FFFFFF31 C083C404  |.$.........1....|
      0020: C3                                   |.|
    )
  }
]
---------- snip ----------

Relocations and symbols can be output standalone or together with the section header as displayed in the example.
This feature set supports all tests in test/MC/COFF and test/MC/ELF (and I suspect all additional tests using elf-dump), making elf-dump and coff-dump deprecated.

Patch by Nico Rieck!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178679 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 18:31:38 +00:00