[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://

[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

llvm-svn: 288251

show more ...

Simplify identify_magic.

This patch defines a memcmp-ish helper function to simplify identify_magic.

llvm-svn: 286928

Add a file magic for CL.exe's object file created with /GL.

This patch makes it possible to identify object files created by CL.exe
with /GL option. Such file contains Microsoft proprietary intermed

Add a file magic for CL.exe's object file created with /GL.

This patch makes it possible to identify object files created by CL.exe
with /GL option. Such file contains Microsoft proprietary intermediate
code instead of target machine code to do LTO.

I need this to print out user-friendly error message from LLD.

Differential Revision: https://reviews.llvm.org/D26645

llvm-svn: 286919

show more ...

[Support] remove_dots: Remove .. from absolute paths.

/../foo is still a proper path after removing the dotdot. This should
now finally match https://9p.io/sys/doc/lexnames.html [Cleaning names].

l

[Support] remove_dots: Remove .. from absolute paths.

/../foo is still a proper path after removing the dotdot. This should
now finally match https://9p.io/sys/doc/lexnames.html [Cleaning names].

llvm-svn: 284384

show more ...

Do not delete leading ../ in remove_dots.

Reviewers: bkramer

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D25561

llvm-svn: 284129

Add support for Darwin’s 64-bit universal files with 64-bit offsets and sizes for the objects.

Darwin added support in its Xcode 8.0 tools (released in the beta) for universal
files where offsets an

Add support for Darwin’s 64-bit universal files with 64-bit offsets and sizes for the objects.

Darwin added support in its Xcode 8.0 tools (released in the beta) for universal
files where offsets and sizes for the objects are 64-bits to allow support for
objects contained in universal files to be larger then 4gb. The change is very
straight forward. There is a new magic number that differs by one bit, much
like the 64-bit Mach-O files. Then there is a new structure that follow the
fat_header that has the same layout but with the offset and size fields using
64-bit values instead of 32-bit values.

rdar://26899493

llvm-svn: 273207

show more ...

[ThinLTO] Option to control path of distributed backend files

Summary:
Add support to control where files for a distributed backend (the
individual index files and optional imports files) are create

[ThinLTO] Option to control path of distributed backend files

Summary:
Add support to control where files for a distributed backend (the
individual index files and optional imports files) are created.

This is invoked with a new thinlto-prefix-replace option in the gold
plugin and llvm-lto. If specified, expects a string of the form
"oldprefix:newprefix", and instead of generating these files in the
same directory path as the corresponding bitcode file, will use a path
formed by replacing the bitcode file's path prefix matching oldprefix
with newprefix.

Also add a new replace_path_prefix helper to Path.h in libSupport.

Depends on D19636.

Reviewers: joker.eph

Subscribers: llvm-commits, joker.eph

Differential Revision: http://reviews.llvm.org/D19644

llvm-svn: 269771

show more ...

Add operator- to Path's reverse_iterator. Needed for D19666

Reviewers: rafael, craig.topper, bogner

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D19724

llvm-svn: 268062

Fix identify_magic() to check that a file that starts with MH_MAGIC is
at least as big as the mach header to be identified as a Mach-O file and
make sure smaller files are not identified as a Mach-O

Fix identify_magic() to check that a file that starts with MH_MAGIC is
at least as big as the mach header to be identified as a Mach-O file and
make sure smaller files are not identified as a Mach-O files but as
unknown files. Also fix identify_magic() so it looks at all 4 bytes of
the filetype field when determining the type of the Mach-O file.
Then fix the macho-invalid-header test case to check that it is an
unknown file and make sure it does not get the error for
object_error::parse_failed. And also update the unit tests.

llvm-svn: 258883

show more ...

Moving FileManager::removeDotPaths to llvm::sys::path::remove_dots

Differential Revision: http://reviews.llvm.org/D14393

llvm-svn: 252499

[Support] Extend sys::path with user_cache_directory function.

Summary:
The new function sys::path::user_cache_directory tries to discover
a directory suitable for cache storage for current system u

[Support] Extend sys::path with user_cache_directory function.

Summary:
The new function sys::path::user_cache_directory tries to discover
a directory suitable for cache storage for current system user.

On Windows and Darwin it returns a path to system-specific user cache directory.

On Linux it follows XDG Base Directory Specification, what is:
- use non-empty $XDG_CACHE_HOME env var,
- use $HOME/.cache.

Reviewers: chapuni, aaron.ballman, rafael

Subscribers: rafael, aaron.ballman, llvm-commits

Differential Revision: http://reviews.llvm.org/D13801

llvm-svn: 251784

show more ...

Use range-based for loop in sys::path::append(). NFC.

llvm-svn: 250999

[Support] Add a version of fs::make_absolute with a custom CWD.

This will be used soon from clang.

llvm-svn: 249309

Move twice-repeated clang path operation into a new function.

And make it more robust in the edge case of exactly "./" as input.

llvm-svn: 246711

Thread premissions through sys::fs::create_director{y|ies}

llvm-svn: 244268

Identify thin archives as archives.

llvm-svn: 242921

Simplify a few uses of remove_filename by using parent_path instead.

llvm-svn: 242334

Purge unused includes throughout libSupport.

NFC.

llvm-svn: 232976

Don't treat .foo as two path components in path::iterators

We were treating '/.foo' as ['/', '.', 'foo'] instead of ['/', '.foo'],
which lead to insanity. Same for '..'.

llvm-svn: 231727

Use read{16,32,64}{le,be}() instead of *reinterpret_cast<u{little,big}{16,32,64}_t>().

llvm-svn: 231016

Object: Handle Mach-O kext bundle files

This particular subtype of Mach-O was missing. Add it.

llvm-svn: 230567

Revert "Change Path::filename_pos() to skip the drive letter."

This reverts commit 228874. For some reason users reported
seeing Clang taking up 25+GB of memory and bringing down
machines with this

Revert "Change Path::filename_pos() to skip the drive letter."

This reverts commit 228874. For some reason users reported
seeing Clang taking up 25+GB of memory and bringing down
machines with this change. Reverting until we figure it out.

llvm-svn: 228890

show more ...

Change Path::filename_pos() to skip the drive letter.

For Windows, filename_pos() tries to find the filename by
searching for separators after the last :. Instead, it should
really check for the on

Change Path::filename_pos() to skip the drive letter.

For Windows, filename_pos() tries to find the filename by
searching for separators after the last :. Instead, it should
really check for the only location that a : is valid, which is
in the second character, and search for separators after that.

llvm-svn: 228874

show more ...

[Object][ELF] Test unknown type.

llvm-svn: 226943

[cleanup] Re-sort all the #include lines in LLVM using
utils/sort_includes.py.

I clearly haven't done this in a while, so more changed than usual. This
even uncovered a missing include from the Inst

[cleanup] Re-sort all the #include lines in LLVM using
utils/sort_includes.py.

I clearly haven't done this in a while, so more changed than usual. This
even uncovered a missing include from the InstrProf library that I've
added. No functionality changed here, just mechanical cleanup of the
include order.

llvm-svn: 225974

show more ...