Commit Graph

1138 Commits

Author SHA1 Message Date
David Blaikie
061ca191c0 [XRay] Implement the llvm-xray graph subcommand
Here we define the `graph` subcommand which generates a graph from the function
call information and uses it to present the call information graphically with
additional annotations.

Reviewers: dblaikie, dberris

Differential Revision: https://reviews.llvm.org/D27243

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292156 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-16 20:36:26 +00:00
Ivan Krasin
d6d6b83a0b Revert r291903 and r291898. Reason: they break check-lld on the bots.
Summary:
Revert [ARM] Fix ubig32_t read in ARMAttributeParser

Now using support functions to read data instead of trying to
perform casts.
===========================================================

Revert [ARM] Enable objdump to construct triple for ARM

Now that The ARMAttributeParser has been moved into the library,
it has been modified so that it can parse the attributes without
printing them and stores them in a map. ELFObjectFile now queries
the attributes to fill out the architecture details of a provided
triple for 'arm' and 'thumb' targets. llvm-objdump uses this new
functionality.

Subscribers: llvm-commits, samparker, aemerson, mgorny

Differential Revision: https://reviews.llvm.org/D28683

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291911 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-13 16:45:15 +00:00
George Rimar
06943952f3 [llvm-dwp] - Reuse object::Decompressor class
One more place where Decompressor class can be reused.

Differential revision: https://reviews.llvm.org/D28679



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291906 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-13 15:58:55 +00:00
Sam Parker
6968dd2f43 [ARM] Enable objdump to construct triple for ARM
Now that The ARMAttributeParser has been moved into the library,
it has been modified so that it can parse the attributes without
printing them and stores them in a map. ELFObjectFile now queries
the attributes to fill out the architecture details of a provided
triple for 'arm' and 'thumb' targets. llvm-objdump uses this new
functionality.

Differential Revision: https://reviews.llvm.org/D28281



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291898 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-13 11:04:21 +00:00
Dean Michael Berris
c4416a6dc0 [XRay] Implement the llvm-xray account subcommand
Summary:
This is the third of a multi-part change to implement subcommands for
the `llvm-xray` tool.

Here we define the `account` subcommand which does simple function call
accounting, generating basic statistics on function calls we find in an
XRay log/trace. We support text output and csv output for this
subcommand.

This change also supports sorting, summing, and filtering the top N
results.

Part of this tool will later be turned into a library that could be used
for basic function call accounting.

Depends on D24376.

Reviewers: dblaikie, echristo

Subscribers: mehdi_amini, dberris, beanz, llvm-commits

Differential Revision: https://reviews.llvm.org/D24377

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291749 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-12 07:38:13 +00:00
Dean Michael Berris
14cdbca6b8 [XRay] Define the library for XRay trace logs
Summary:
In this change we move the definition of the log reading routines from
the tools directory in LLVM to {include/llvm,lib}/XRay. We improve the
documentation a little bit for the publicly accessible headers, and
adjust the top-matter. This also leads to some refactoring and cleanup
in the tooling code.

In particular, we do the following:

  - Rename the class from LogReader to Trace, as it better represents
    the logical set of records as opposed to a log.
  - Use file type detection instead of asking the user to say what
    format the input file is. This allows us to keep the interface
    simple and encapsulate the logic of loading the data appropriately.

In future changes we increase the API surface and write dedicated unit
tests for the XRay library.

Depends on D24376.

Reviewers: dblaikie, echristo

Subscribers: mehdi_amini, mgorny, llvm-commits, varno

Differential Revision: https://reviews.llvm.org/D28345

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291652 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-11 06:39:09 +00:00
Michal Gorny
71b8698703 [llvm-config] Canonicalize CMake booleans to 0/1
Following the similar change to lit configuration, ensure that all CMake
booleans are canonicalized to 0/1 when being passed to llvm-config. This
fixes the incorrect interpretation of values when user passes another
value than the ON/OFF, and simplifies the code by removing unnecessary
string matching.

Furthermore, the code for --has-rtti and --has-global-isel has been
modified to print consistent values indepdently of the boolean used by
passed by the user to CMake. Sadly, the code already implicitly used
different values for the two (YES/NO for --has-rtti, ON/OFF for
--has-global-isel).

Include tests for all booleans and multi-value options in llvm-config.

Differential Revision: https://reviews.llvm.org/D28366

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291593 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-10 19:55:51 +00:00
Dean Michael Berris
9213bb6c36 [XRay] Use regular expression for finding symbols
Un-break the test in Windows.

Follow-up on D24376.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291538 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-10 04:32:34 +00:00
Dean Michael Berris
6e1f066adf [XRay] Implement llvm-xray convert -- trace file conversion
This is the second part of a multi-part change to define additional
subcommands to the `llvm-xray` tool.

This change defines a conversion subcommand to take XRay log files, and
turns them from one format to another (binary or YAML). This currently
only supports the first version of the log file format, defined in the
compiler-rt runtime.

Depends on D21987.

Reviewers: dblaikie, echristo

Subscribers: mehdi_amini, dberris, beanz, llvm-commits

Differential Revision: https://reviews.llvm.org/D24376

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291529 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-10 02:38:11 +00:00
Hal Finkel
41b81eb904 [llvm-opt-report] Fix context-sensitive lines where nothing happened
Don't print a line multiple times, each for different inlining contexts, if
nothing happened in any context. This prevents situations like this:

 [[
  > main:
 65     |       if ((i * ni + j) % 20 == 0) fprintf
  > print_array:
 65     |       if ((i * ni + j) % 20 == 0) fprintf
 ]]

which could happen if different optimizations were missed in different inlining
contexts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291361 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-07 20:21:17 +00:00
Michal Gorny
4d3523945d [llvm-config] Print --system-libs only when static linking
Modify the --system-libs option in llvm-config to print system libs only
when using static linking. The system libraries are irrelevant when
linking to a shared library since the library has appropriate library
dependencies embedded.

Modify the --system-libs test appropriately to force static linking, and
disable it if static libs are not available (i.e. BUILD_SHARED_LIBS is
enabled).

Differential Revision: https://reviews.llvm.org/D27805

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291285 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-06 21:33:54 +00:00
Asiri Rathnayake
f56a7f910e Fix x86 gold tests on non-x86 targets.
These tests are missing a target triple and the -m elf_x86_64 gold option,
which makes them fail on non-x86 targets.

Differential revision: https://reviews.llvm.org/D28285

Reviewers: tejohnson

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290965 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-04 14:43:51 +00:00
Mike Aizatsky
fd40c60332 [sancov] hash prefix results in huge merge files, use shorter prefix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290277 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-21 22:09:57 +00:00
Adrian Prantl
7b500b4bdf [IR] Remove the DIExpression field from DIGlobalVariable.
This patch implements PR31013 by introducing a
DIGlobalVariableExpression that holds a pair of DIGlobalVariable and
DIExpression.

Currently, DIGlobalVariables holds a DIExpression. This is not the
best way to model this:

(1) The DIGlobalVariable should describe the source level variable,
    not how to get to its location.

(2) It makes it unsafe/hard to update the expressions when we call
    replaceExpression on the DIGLobalVariable.

(3) It makes it impossible to represent a global variable that is in
    more than one location (e.g., a variable with multiple
    DW_OP_LLVM_fragment-s).  We also moved away from attaching the
    DIExpression to DILocalVariable for the same reasons.

This reapplies r289902 with additional testcase upgrades and a change
to the Bitcode record for DIGlobalVariable, that makes upgrading the
old format unambiguous also for variables without DIExpressions.

<rdar://problem/29250149>
https://llvm.org/bugs/show_bug.cgi?id=31013
Differential Revision: https://reviews.llvm.org/D26769

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290153 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-20 02:09:43 +00:00
Mike Aizatsky
77972972a3 [sancov] skip dead files from computations
Differential Revision: https://reviews.llvm.org/D27863

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290017 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-17 00:11:48 +00:00
Kevin Enderby
398ecdfe0a Fix a bugs with using some Mach-O command line flags like "-arch armv7m".
The Mach-O command line flag like "-arch armv7m" does not match the
arch name part of its llvm Triple which is "thumbv7m-apple-darwin”.

I think the best way to fix this is to have
llvm::object::MachOObjectFile::getArchTriple() optionally return the
name of the Mach-O arch flag that would be used with -arch that
matches the CPUType and CPUSubType.  Then change
llvm::object::MachOUniversalBinary::ObjectForArch::getArchTypeName()
to use that and change it to getArchFlagName() as the type name is
really part of the Triple and the -arch flag name is a Mach-O thing
for a specific Triple with a specific Mcpu value.

rdar://29663637


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290001 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-16 22:54:02 +00:00
Adrian Prantl
096faa974a Revert "[IR] Remove the DIExpression field from DIGlobalVariable."
This reverts commit 289920 (again).
I forgot to implement a Bitcode upgrade for the case where a DIGlobalVariable
has not DIExpression. Unfortunately it is not possible to safely upgrade
these variables without adding a flag to the bitcode record indicating which
version they are.
My plan of record is to roll the planned follow-up patch that adds a
unit: field to DIGlobalVariable into this patch before recomitting.
This way we only need one Bitcode upgrade for both changes (with a
version flag in the bitcode record to safely distinguish the record
formats).

Sorry for the churn!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289982 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-16 19:39:01 +00:00
Dehao Chen
7e4360079c Pass sample pgo flags to thinlto.
Summary: ThinLTO needs to invoke SampleProfileLoader pass during link time in order to annotate profile correctly after module importing.

Reviewers: davidxl, mehdi_amini, tejohnson

Subscribers: pcc, davide, llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D27790

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289957 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-16 16:48:46 +00:00
Adrian Prantl
eb38a2a075 [IR] Remove the DIExpression field from DIGlobalVariable.
This patch implements PR31013 by introducing a
DIGlobalVariableExpression that holds a pair of DIGlobalVariable and
DIExpression.

Currently, DIGlobalVariables holds a DIExpression. This is not the
best way to model this:

(1) The DIGlobalVariable should describe the source level variable,
    not how to get to its location.

(2) It makes it unsafe/hard to update the expressions when we call
    replaceExpression on the DIGLobalVariable.

(3) It makes it impossible to represent a global variable that is in
    more than one location (e.g., a variable with multiple
    DW_OP_LLVM_fragment-s).  We also moved away from attaching the
    DIExpression to DILocalVariable for the same reasons.

This reapplies r289902 with additional testcase upgrades.

<rdar://problem/29250149>
https://llvm.org/bugs/show_bug.cgi?id=31013
Differential Revision: https://reviews.llvm.org/D26769

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289920 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-16 04:25:54 +00:00
Teresa Johnson
97e27342c0 [gold] Add datalayout to test where it was missing
Needed due to change to require datalayout (r289719).

Found this in my own testing, maybe there aren't any bots using a v1.12
gold yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289876 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-15 21:42:56 +00:00
Nico Weber
30623ab7a7 Fix test/tools/lto/hide-linkonce-odr.ll after r289719
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289750 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-15 01:31:38 +00:00
Davide Italiano
c545336a42 [gold] Add datalayout to two tests where it was missing.
Reported by: thakis via chromium bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289737 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-14 22:53:43 +00:00
Davide Italiano
6b673b85ed [LTO] Reject modules without datalayout.
Also, udpate the ~60 failing tests in the tree which did
not contain a valid datalayout.
This fixes PR31123. lld will be updated in a following patch,
immediately after this is committed.

Differential Revision:  https://reviews.llvm.org/D27082

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289719 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-14 21:57:04 +00:00
Chris Bieneman
741933d3a4 [llvm-config] Add --ignore-libllvm
This flag forces off linking libLLVM. This should resolve some issues reported on llvm-commits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289605 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-13 22:17:59 +00:00
Chris Bieneman
7ca9e06428 [LIT] Fix system-windows
Turns out if you were on windows and your default target wasn't windows the system-windows feature wasn't getting enabled.

This fixes that and updates the coff-dwarf test to rely on the new "target-windows" feature. That test was the reason why system-windows was changed to not always be enabled on Windows hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289503 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-13 00:29:56 +00:00
Chris Bieneman
e190ac565f [llvm-config] Unsupported should be win32
Hopefully this will fix the failing Windows bot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289497 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-12 23:42:08 +00:00
Chris Bieneman
8b658bc535 Revert "Disable all llvm-config tests for now, will investigate later"
This reverts commit r260386.

These tests all pass for me locally. I have no idea if they will pass on all configurations, so I'll watch the bots closely.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289490 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-12 23:14:58 +00:00
Chris Bieneman
1c770ffdad [llvm-config] Fix cflags test looking for "error"
This test is (I think) actually trying to make sure no errors are printed, but it hits on the string "error" in flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289484 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-12 23:03:28 +00:00
Chris Bieneman
6dc865ced5 Revert "Remove system-libs.test for now"
This reverts commit r260281.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289483 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-12 23:03:01 +00:00
George Rimar
1f9118e823 [llvm-readobj] - Teach readobj to print PT_OPENBSD_BOOTDATA header
These are OpenBSD specific program headers.

OpenBSD commit:
d39116912b

It is required for fixing PR31288.

Differential revision: https://reviews.llvm.org/D27456

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288831 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-06 17:55:52 +00:00
Peter Collingbourne
a11b564b77 llvm-modextract: Call keep() on the output stream before exiting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288435 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-01 23:13:11 +00:00
Kevin Enderby
eafdc6f2a2 Fix a bug with llvm-size and the -m option with multiple files not printing the file names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288402 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-01 19:12:55 +00:00
Derek Schuff
7a578c9156 [WebAssembly] Add llvm-objdump support for wasm file format
This is the first part of an effort to add wasm binary
support across all llvm tools.

Patch by Sam Clegg

Differential Revision: https://reviews.llvm.org/D26172

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288251 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-30 16:49:11 +00:00
Peter Collingbourne
c67ca17e5e Add llvm-modextract tool.
This program is for testing features that rely on multi-module bitcode files.
It takes a multi-module bitcode file, extracts one of the modules and writes
it to the output file.

Differential Revision: https://reviews.llvm.org/D26778

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288201 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-29 21:54:33 +00:00
Kevin Enderby
dc150d07a5 Add to llvm-objdump the -no-leading-headers option with the use of the -macho option.
In some cases the leading headers of the file name, archive member and
architecture slice name in the output of lvm-objdump is not wanted so the
tool’s output can be directly used by scripts.  This matches the -X option
of the Apple otool(1) program.

rdar://28491674


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288199 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-29 21:43:40 +00:00
Meador Inge
882017a7cb llvm-nm: Print correct symbol types for init and fini sections
This patch fixes a small bug where symbols defined in the INIT
and FINI sections were incorrectly getting a type of 'n'.

Differential Revision: https://reviews.llvm.org/D26937

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287803 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-23 20:17:20 +00:00
Meador Inge
54801d6fa5 llvm-nm: Don't print value or size for undefined or weak symbols
Undefined and weak symbols don't have a meaningful size or value.
As such, nothing should be printed for those attributes (this is
already done for the address with 'U') with the BSD format.  This
matches what GNU nm does.

Note that for the POSIX.2 format [1] zero values are still
printed for the size and value.  This seems in spirit with
the format strings in that specification, but is debatable.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/

Differential Revision: https://reviews.llvm.org/D26936

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287802 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-23 20:17:15 +00:00
Hemant Kulkarni
fe8bde7e92 llvm-readobj: Use hash tables to print dynamic symbols.
-symbols prints both .symtab and .dynsym symbols for GNU style in ELF.
-dyn-symbols prints symbols looking up through hash tables. This helps validate hash tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287786 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-23 18:04:23 +00:00
Alex Lorenz
c636d7a9a3 [llvm-cov] Avoid 0% when reporting something that's 0/0
This commit makes llvm-cov avoid showing 0% (0/0) coverage for things
like file function coverage, etc. in reports and HTML output. This can happen
for files like headers that have macros but no functions. This commit makes
llvm-cov report - (0/0) instead.

rdar://29246480

Differential Revision: https://reviews.llvm.org/D26615


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287539 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-21 14:00:04 +00:00
Kevin Enderby
fbd189d3df General clean up of error handling in llvm-objdump to remove its use of report_fatal_error().
No real functional change with this commit.

The problem with report_fatal_error() is it does not include the tool name
and the file name the for which the error message was generated.

Uses of report_fatal_error() were change to report_error() or error()
to get a better error and to make the code smaller and cleaner.

Also changed things like error(errorToErrorCode(SOrErr.takeError())) to
use report_error() with a file name and the llvm::Error (as well as the
ArchitectureName if available) so the error message is printed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287163 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-16 22:17:38 +00:00
Saleem Abdulrasool
68e337a67b test: use separate input file for test
Rather than using sed to generate the input and pipe the result to
strings, use the static input instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287079 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-16 04:08:46 +00:00
Kevin Enderby
0156bda17b General clean up of Mach-O error handling in llvm-objdump.
To get a good error message for all files that could contain Mach-O
files the code in llvm-objdump needs to use the archive member name
and name of the architecture of a slice of a universal file in those cases
where the error come from a Mach-O file in an archive or a universal file.

Most of this is fixed by moving the call to checkSymbolTable() into
ProcessMachO() and calling it when the operation needs the symbol
table.  And then calling the form of report_error() that has the
ArchiveName and ArchitectureName arguments.  One other place
needed to call this form of report_error() also with these arguments.

Also changed the code in MachODump.cpp to not use report_fatal_error()
and use report_error() instead to make the code smaller and cleaner.  All
cases of this are for errors with the symbol table which should now never
be tripped since checkSymbolTable() should be called first to get a good
error message in these cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287050 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-15 23:07:41 +00:00
Tim Northover
3b2bb1a2bc llvm-objdump: deal with unexpected object files more gracefully.
Specifically, we don't want to segfault on release builds, so print the problem
instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287022 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-15 20:26:01 +00:00
Saleem Abdulrasool
fe23a5c29f llvm-strings: support the -n option
Permit specifying the match length (the `-n` or `--bytes` option).  The
deprecated `-[length]` form is not supported as an option.  This allows the
strings tool to display only the specified length strings rather than the
hardcoded default length of >= 4.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286914 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-15 00:43:52 +00:00
Saleem Abdulrasool
4da3d72a9b Revert "Revert "llvm-strings: support printing the filename""
Change the dynamic files to static in the hope that it will actually fix the
transient errors that Ive been unable to reproduce.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286891 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-14 21:10:41 +00:00
Kevin Enderby
34a869ca6c Add a checkSymbolTable() method to the MachOObjectFile class.
The philosophy of the error checking in libObject for Mach-O files
is that the constructor will check the load commands so for their
tables the offsets and sizes are properly contained in the file.
But there is no checking of the entries of any of the tables.

For the contents of the tables themselves the methods accessing
the contents of the entries return errors as needed.  In some
cases this however makes it difficult or cumbersome to produce
a good error message which would include the tool name, file name,
archive member, and name of the architecture of a slice of a universal file
the error occurred in.

So idea is that there will be a method to check a table which can
be called up front before using it allowing a good error message
to be produced before a table is used.  And if only verification of
the Mach-O file and its tables are wanted a new possible method
checkAllTables() could be added to call all of the methods to
check all the tables at some time when such methods exist.

The checkSymbolTable() is the first of such methods to check
one of the Mach-O file tables.  This method initially will used in
llvm-objdump’s DisassembleMachO() routine before it gets the
section and symbol information.  As if there are problems with
the symbol table currently the error is first encountered by the
bool operator() in the SymbolSorter() struct which passed to
std::sort().  In this case there is no context as to the file name
the symbol which results a poor error message:

LLVM ERROR: truncated or malformed object (bad string index: 22 for symbol at index 1)

with the added call to the checkSymbolTable() method the
error message includes the tool name and file name:

llvm-objdump: 'macho-invalid-symbol-strx': truncated or malformed object (bad string table index: 22 past the end of string table, for symbol at index 1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286887 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-14 20:57:04 +00:00
Renato Golin
bdeedc78d8 Revert "llvm-strings: support printing the filename"
Also,

Revert "test: remove the archive before modifying it"
Revert "test: explicitly use gnu format"

This reverts commits r286778, r286729 and r286767, as they are randomly failing
on many bots (AArch64, x86_64).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286820 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-14 13:09:24 +00:00
Saleem Abdulrasool
5b20442fc2 test: remove the archive before modifying it
The archive may already exist when not doing a clean test run.  The dirty state
can cause a test failure.  Remove the archive first.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286778 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-13 20:43:41 +00:00
Saleem Abdulrasool
a5627e5c59 llvm-cxxfilt: support reading from stdin
`c++filt` when given no arguments runs as a REPL, decoding each line as a
decorated name.  Unify the test structure to be more uniform, with the tests for
llvm-cxxfilt living under test/tools/llvm-cxxfilt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286777 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-13 20:43:38 +00:00
Saleem Abdulrasool
c99852c60e llvm-strings: support printing the filename
This adds support for the `-f` or `--print-file-name` option for strings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286767 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-13 19:07:48 +00:00