553 Commits

Author SHA1 Message Date
Yuanfang Chen
0eb966c824 [llvm-objdump] Move --start-address >= --stop-address check out of the
-d code.

Summary:
Move it into `main` function so the checking is effective for all actions
user may do with llvm-objdump; notably, -r and -s in addition to existing -d.

Match GNU behavior.

Reviewers: jhenderson, grimar, MaskRay, rupprecht

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63631

llvm-svn: 364118
2019-06-22 00:22:57 +00:00
James Henderson
9485b265e8 [binutils] Add response file option to help and docs
Many LLVM-based tools already support response files (i.e. files
containing a list of options, specified with '@'). This change simply
updates the documentation and help text for some of these tools to
include it. I haven't attempted to fix all tools, just a selection that
I am interested in.

I've taken the opportunity to add some tests for --help behaviour, where
they were missing. We could expand these tests, but I don't think that's
within scope of this patch.

This fixes https://bugs.llvm.org/show_bug.cgi?id=42233 and
https://bugs.llvm.org/show_bug.cgi?id=42236.

Reviewed by: grimar, MaskRay, jkorous

Differential Revision: https://reviews.llvm.org/D63597

llvm-svn: 364036
2019-06-21 11:49:20 +00:00
Eli Friedman
d88e28d13e [llvm-objdump] Switch between ARM/Thumb based on mapping symbols.
The ARMDisassembler changes allow changing between ARM and Thumb mode
based on the MCSubtargetInfo, rather than the Target, which simplifies
the other changes a bit.

I'm not really happy with adding more target-specific logic to
tools/llvm-objdump/, but there isn't any easy way around it: the logic
in question specifically applies to disassembling an object file, and
that code simply isn't located in lib/Target, at least at the moment.

Differential Revision: https://reviews.llvm.org/D60927

llvm-svn: 363903
2019-06-20 00:29:40 +00:00
Yuanfang Chen
fee7365b07 [llvm-objdump] Remove unnecessary indentation when dumping ELF data.
Reviewers: MaskRay, jhenderson, rupprecht

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63393

llvm-svn: 363858
2019-06-19 18:44:29 +00:00
Yuanfang Chen
58dbe47b9c Test commit access
llvm-svn: 363763
2019-06-19 05:40:24 +00:00
Fangrui Song
291e11ea02 [llvm-objdump] Tidy up AMDGCNPrettyPrinter
llvm-svn: 363650
2019-06-18 06:35:18 +00:00
Fangrui Song
46f9cbe28d [llvm-objdump] Use %08 instead of %016 to print leading addresses for 32-bit binaries
Reviewed By: grimar

Differential Revision: https://reviews.llvm.org/D63398

llvm-svn: 363539
2019-06-17 09:59:55 +00:00
Peter Collingbourne
a2048f868d Symbolize: Replace the Options constructor with in-class initialization. NFCI.
This is not only less code but also clearer at the use site.

Differential Revision: https://reviews.llvm.org/D63113

llvm-svn: 363024
2019-06-11 02:31:54 +00:00
Jordan Rupprecht
7dd813fea1 [llvm-objdump] Fix Bugzilla ID 41862 to support checking addresses of disassembled object
Summary:
This fixes the bugzilla id,41862 to support dealing with checking
stop address against start address to support this not being a
proper object to check the disasembly against like gnu objdump
currently does.

Reviewers: jakehehrlich, rupprecht, echristo, jhenderson, grimar

Reviewed By: jhenderson

Subscribers: MaskRay, smeenai, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D61969

Patch by Nicholas Krause!

llvm-svn: 362847
2019-06-07 21:49:26 +00:00
Michael Pozulp
c3c18f4a0d [llvm-objdump] Add warning if --disassemble-functions specifies an unknown symbol
Summary:
Fixes Bug 41904 https://bugs.llvm.org/show_bug.cgi?id=41904

Re-land r362768 after it was reverted in r362826.

Reviewers: jhenderson, rupprecht, grimar, MaskRay

Reviewed By: jhenderson, rupprecht, MaskRay

Subscribers: dexonsmith, rupprecht, kristina, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62275

llvm-svn: 362838
2019-06-07 20:34:31 +00:00
Vlad Tsyrklevich
e67f6206ac Revert "[llvm-objdump] Add warning if --disassemble-functions specifies an unknown symbol"
This reverts commit 50f61af3f304a03f10d9ecb0828829f0a72d0099, it used
the function introduced in the previous revert of
0bddef79019a23ab14fcdb27028e55e484674c88.

llvm-svn: 362826
2019-06-07 18:55:12 +00:00
Michael Pozulp
767bdd55e1 [llvm-objdump] Print source when subsequent lines in the translation unit come from the same line in two different headers.
Reviewers: grimar, rupprecht, jhenderson

Reviewed By: grimar, jhenderson

Subscribers: llvm-commits, jhenderson

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62461

llvm-svn: 362771
2019-06-07 06:23:54 +00:00
Michael Pozulp
50f61af3f3 [llvm-objdump] Add warning if --disassemble-functions specifies an unknown symbol
Summary: Fixes Bug 41904 https://bugs.llvm.org/show_bug.cgi?id=41904

Reviewers: jhenderson, rupprecht, grimar, MaskRay

Reviewed By: jhenderson, rupprecht, MaskRay

Subscribers: dexonsmith, rupprecht, kristina, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62275

llvm-svn: 362768
2019-06-07 05:11:13 +00:00
George Rimar
b42196661b [llvm-objdump] - Disassemble non-executable sections if specifically requested.
This is https://bugs.llvm.org/show_bug.cgi?id=41897.

Previously -d + -j .data had no effect, that wasn't consistent with GNU,
which proccesses .data in that case. With this patch we follow this behavior.

Diffeential revision: https://reviews.llvm.org/D62848

llvm-svn: 362596
2019-06-05 11:37:53 +00:00
Fangrui Song
6aebd8394a [Object] object::ELFObjectFile::symbol_begin(): skip symbol index 0
For clients iterating the symbol table, none expects to handle index 0
(STN_UNDEF). Skip it to improve consistency with other binary formats.
Clients that need STN_UNDEF (e.g. lld) can use
getSectionContentsAsArray(). A test will be added in D62148.

Reviewed By: mtrent

Differential Revision: https://reviews.llvm.org/D62296

llvm-svn: 361506
2019-05-23 16:01:59 +00:00
Fangrui Song
c289d218b9 [llvm-objdump] Dump inline relocations if the relocated section is specified with --section
This fixes PR41886: llvm-objdump -d -r -j .text doesn't show inline relocations of .text

While here, switch to stable_sort() because we don't want to change the order of relocations applied to the same location. gABI says consecutive relocation records are composed together and their order matters. In practise it is difficult to see relocations applied to the same location not consecutive, we just have to keep the relative order of relocations with the same offset.

Reviewed By: grimar

Differential Revision: https://reviews.llvm.org/D62253

llvm-svn: 361395
2019-05-22 15:12:51 +00:00
Serge Guelton
94c36fa15b Properly categorize llvm-objdump options
Filters out noise, and distinguish Mach-O related options from others.

Differential Revision: https://reviews.llvm.org/D62195

llvm-svn: 361351
2019-05-22 06:30:46 +00:00
George Rimar
f44eb922c0 [llvm-objdump] Make --disassemble-functions imply -d
Fixes https://bugs.llvm.org/show_bug.cgi?id=41903

Patch by Mike Pozulp!

Differential revision: https://reviews.llvm.org/D62054

llvm-svn: 361240
2019-05-21 11:05:46 +00:00
Fangrui Song
e183340c29 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.

llvm-svn: 360892
2019-05-16 13:24:04 +00:00
Hans Wennborg
4da9ff9fcf 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.

llvm-svn: 360878
2019-05-16 12:08:34 +00:00
Fangrui Song
a076ec54be [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.

llvm-svn: 360876
2019-05-16 11:33:48 +00:00
Fangrui Song
6150407951 [llvm-objdump] Print st_other
Add support for ".hidden" ".internal" ".protected" and " 0x%02x" for
other st_other bits used by some architectures.

Reviewed By: sfertile

Differential Revision: https://reviews.llvm.org/D61718

llvm-svn: 360439
2019-05-10 16:24:57 +00:00
George Rimar
5c922f6988 [llvm-objdump] - Print relocation record in a GNU format.
This fixes the https://bugs.llvm.org/show_bug.cgi?id=41355.

Previously with -r we printed relocation section name instead of the target section name.
It was like this: "RELOCATION RECORDS FOR [.rel.text]"
Now it is: "RELOCATION RECORDS FOR [.text]"

Also when relocation target section has more than one relocation section,
we did not combine the output. Now we do.

Differential revision: https://reviews.llvm.org/D61312

llvm-svn: 360143
2019-05-07 13:14:18 +00:00
Fangrui Song
5387c2cd17 [llvm-objdump] Print newlines before and after "Disassembly of section ...:"
This improves readability and the behavior is consistent with GNU objdump.

The new test test/tools/llvm-objdump/X86/disassemble-section-name.s
checks we print newlines before and after "Disassembly of section ...:"

Differential Revision: https://reviews.llvm.org/D61127

llvm-svn: 359668
2019-05-01 10:40:48 +00:00
Fangrui Song
aaecb8f799 [llvm-objdump] Delete redundant check
llvm-svn: 359102
2019-04-24 15:09:23 +00:00
Fangrui Song
b5f3984541 [CommandLine] Provide parser<unsigned long> instantiation to allow cl::opt<uint64_t> on LP64 platforms
Summary:
And migrate opt<unsigned long long> to opt<uint64_t>

Fixes PR19665

Differential Revision: https://reviews.llvm.org/D60933

llvm-svn: 359068
2019-04-24 02:40:20 +00:00
Fangrui Song
b48e41be96 [llvm-objdump] Fix End in disassemblyObject after rL358806
llvm-svn: 358809
2019-04-20 07:48:41 +00:00
Fangrui Song
ce12ea8dfc [llvm-objdump] Don't disassemble symbols before SectionAddr
This was caught by UBSAN

tools/llvm-objdump/X86/macho-disassembly-g-dsym.test
tools/llvm-objdump/X86/hex-displacement.test

llvm-svn: 358806
2019-04-20 07:19:24 +00:00
Fangrui Song
8f28f7a488 [llvm-objdump] Simplify --{start,stop}-address
llvm-svn: 358803
2019-04-20 02:10:48 +00:00
Fangrui Song
c82e92bca8 Change some llvm::{lower,upper}_bound to llvm::bsearch. NFC
llvm-svn: 358564
2019-04-17 07:58:05 +00:00
Fangrui Song
fa860ff733 [llvm-objdump] Align instructions to a tab stop in disassembly output
This relands D60376/rL358405, with the difference: sed 'y/\t/ /' -> tr '\t' ' '
BSD sed doesn't support escape characters for the 'y' command.
I didn't use it in rL358405 because it was not listed at
https://llvm.org/docs/GettingStarted.html#software but it
should be available.

Original description:

In GNU objdump, -w/--wide aligns instructions in the disassembly output.
This patch does the same to llvm-objdump. However, we always use the
wide format (-w/--wide is ignored), because the narrow format
(instructions are misaligned) is probably not very useful.

In llvm-readobj, we made a similar decision: always use the wide format,
accept but ignore -W/--wide.

To save some columns, we change the tab before hex bytes (controlled by
--[no-]show-raw-insn) to a space.

llvm-svn: 358474
2019-04-16 03:56:55 +00:00
Fangrui Song
051a699ed6 [llvm-objdump] Simplify PrintHelpMessage() logic
This relands rL358418. It missed one test that should also use -macho
Note, all the other -private-header -exports-trie tests are used
together with -macho.

llvm-svn: 358472
2019-04-16 02:37:29 +00:00
Alex Lorenz
d9d0c3e138 Revert r358405: "[llvm-objdump] Align instructions to a tab stop in disassembly output"
The test fails on darwin due to a sed error:

sed: 1: "y/\t/ /": transform strings are not the same length
llvm-svn: 358459
2019-04-15 22:36:12 +00:00
Alex Lorenz
16256123d0 Revert r358418: "[llvm-objdump] Simplify PrintHelpMessage() logic"
This reverts commit r358418 as it broke `test/Object/objdump-export-list`
on Darwin.

llvm-svn: 358443
2019-04-15 20:16:19 +00:00
Fangrui Song
204339a234 [llvm-objdump] Simplify PrintHelpMessage() logic
llvm-svn: 358418
2019-04-15 15:52:32 +00:00
Fangrui Song
523758ef5b [llvm-objdump] Wrap things in namespace llvm
llvm-svn: 358417
2019-04-15 15:31:42 +00:00
Fangrui Song
9d812f4499 [llvm-objdump] Reorganize cl::opt variables and move Mach-O specifics to MachODump.cpp
llvm-svn: 358415
2019-04-15 15:00:10 +00:00
Fangrui Song
b688a200e4 [llvm-objdump] Align instructions to a tab stop in disassembly output
Summary:
In GNU objdump, -w/--wide aligns instructions in the disassembly output.
This patch does the same to llvm-objdump. However, we always use the
wide format (-w/--wide is ignored), because the narrow format
(instructions are misaligned) is probably not very useful.

In llvm-readobj, we made a similar decision: always use the wide format,
accept but ignore -W/--wide.

To save some columns, we change the tab before hex bytes (controlled by
--[no-]show-raw-insn) to a space.

Reviewers: rupprecht, jhenderson, grimar

Reviewed By: jhenderson

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60376

llvm-svn: 358405
2019-04-15 13:32:41 +00:00
Fangrui Song
7d4ad14371 [llvm-objdump] Don't print trailing space in dumpBytes
In disassembly output, dumpBytes prints a space, followed by a tab
printed by printInstr. Remove the extra space.

llvm-svn: 358045
2019-04-10 05:31:21 +00:00
Fangrui Song
5f2b5cd85e [llvm-objdump] Accept and ignore --wide/-w
This is similar to what we do for llvm-readobj (--wide/-W is for GNU
readelf compatibility).

The test will be added in D60376.

llvm-svn: 358043
2019-04-10 04:46:01 +00:00
Fangrui Song
3f2096833a [llvm-objdump] Migrate some functions from std::error_code to Error
llvm-svn: 357965
2019-04-09 05:41:24 +00:00
Fangrui Song
f67de6c940 [llvm-objdump] Migrate relocation handling functions from error_code to Error
llvm-svn: 357920
2019-04-08 16:24:08 +00:00
Fangrui Song
996b90932a [llvm-objdump] Fix MC/ARM/arm-macho-calls.s
llvm-svn: 357880
2019-04-08 01:22:38 +00:00
Fangrui Song
32087b65e7 [llvm-objdump] Split disassembleObject and simplify --{start,stop}-address handling
The main disassembly loop is hard to read due to special handling of ARM
ELF data & ELF data. Split off the logic into two functions
dumpARMELFData and dumpELFData. Hoist some checks outside of the loop.

--start-address --stop-address have redundant checks and minor off-by-1
issues. Fix them.

llvm-svn: 357869
2019-04-07 16:33:24 +00:00
Fangrui Song
47a7662e29 [llvm-objdump] Fix split of source lines; don't ltrim source lines
If the file does not end with a newline, it may be dropped. Fix the
splitting algorithm.

Also delete an unnecessary SourceCache lookup.

llvm-svn: 357858
2019-04-07 10:16:46 +00:00
Fangrui Song
e7834bd159 [llvm-objdump] Simplify Expected<T> handling with unwrapOrError
llvm-svn: 357855
2019-04-07 08:19:55 +00:00
Fangrui Song
545ed223a6 [llvm-objdump] Simplify disassembleObject
* Use std::binary_search to replace some std::lower_bound
* Use llvm::upper_bound to replace some std::upper_bound
* Use format_hex and support::endian::read{16,32}

llvm-svn: 357853
2019-04-07 05:32:16 +00:00
Fangrui Song
6a0746a92f Change some StringRef::data() reinterpret_cast to bytes_begin() or arrayRefFromStringRef()
llvm-svn: 357852
2019-04-07 03:58:42 +00:00
Eric Christopher
1857edb256 Fix typoed variable name.
NFCI.

llvm-svn: 357138
2019-03-28 01:12:13 +00:00
Jordan Rupprecht
ae672b482f [llvm-objdump] Support arg grouping for -j and -M (e.g. llvm-objdump -sj.foo -dMreg-names-raw)
Summary:
r354375 added support for most objdump groupings, but didn't add support for -j|--sections, because that wasn't possible.
r354870 added --disassembler options, but grouping still wasn't available.
r355185 supported values for grouped options.

This just puts the three of them together. This supports -j in modes like `-s -j .foo`, `-sj .foo`, `-sj=.foo`, or `-sj.foo`, and similar for `-M`.

Reviewers: ormris, jhenderson, ikudrin

Reviewed By: jhenderson, ikudrin

Subscribers: javed.absar, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59618

llvm-svn: 356697
2019-03-21 18:45:44 +00:00