Commit Graph

1621 Commits

Author SHA1 Message Date
Tim Renouf 666ef0db20 [AMDGPU] Add gfx602, gfx705, gfx805 targets
At AMD, in an internal audit of our code, we found some corner cases
where we were not quite differentiating targets enough for some old
hardware. This commit is part of fixing that by adding three new
targets:

* The "Oland" and "Hainan" variants of gfx601 are now split out into
  gfx602. LLPC (in the GPUOpen driver) and other front-ends could use
  that to avoid using the shaderZExport workaround on gfx602.

* One variant of gfx703 is now split out into gfx705. LLPC and other
  front-ends could use that to avoid using the
  shaderSpiCsRegAllocFragmentation workaround on gfx705.

* The "TongaPro" variant of gfx802 is now split out into gfx805.
  TongaPro has a faster 64-bit shift than its former friends in gfx802,
  and a subtarget feature could be set up for that to take advantage of
  it. This commit does not make that change; it just adds the target.

V2: Add clang changes. Put TargetParser list in order.
V3: AMDGCNGPUs table in TargetParser.cpp needs to be in GPUKind order,
    so fix the GPUKind order.

Differential Revision: https://reviews.llvm.org/D88916

Change-Id: Ia901a7157eb2f73ccd9f25dbacec38427312377d
2020-10-10 17:22:22 +01:00
Rahman Lavaee 2b0c5d76a6 Introduce and use a new section type for the bb_addr_map section.
This patch lets the bb_addr_map (renamed to __llvm_bb_addr_map) section use a special section type (SHT_LLVM_BB_ADDR_MAP) instead of SHT_PROGBITS. This would help parsers, dumpers and other tools to use the sh_type ELF field to identify this section rather than relying on string comparison on the section name.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D88199
2020-10-08 11:13:19 -07:00
Luqman Aden 568035ac39 [llvm-readobj] Add --coff-tls-directory flag to print TLS Directory & test.
Akin to dumpbin's /TLS option, this will print out the TLS directory, if
present, in the image.

Example output:
```
> llvm-readobj --coff-tls-directory test.exe
File: test.exe
Format: COFF-x86-64
Arch: x86_64
AddressSize: 64bit
TLSDirectory {
  StartAddressOfRawData: 0x140004000
  EndAddressOfRawData: 0x140004040
  AddressOfIndex: 0x140002000
  AddressOfCallBacks: 0x0
  SizeOfZeroFill: 0x0
  Characteristics [ (0x0)
  ]
}
```

Reviewed By: jhenderson, grimar

Differential Revision: https://reviews.llvm.org/D88635
2020-10-08 01:53:15 -07:00
Alexander Shaposhnikov 315970de1d [llvm-objcopy][MachO] Add support for universal binaries
This diff adds support for universal binaries to llvm-objcopy.
This is a recommit of 32c8435ef7 with the asan issue fixed.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D88400
2020-10-06 04:01:40 -07:00
Dmitri Gribenko 80f66ac0d5 Revert "[llvm-objcopy][MachO] Add support for universal binaries"
This reverts commit 32c8435ef7. It fails
ASan, details in https://reviews.llvm.org/D88400.
2020-10-06 11:29:24 +02:00
Alexander Shaposhnikov 32c8435ef7 [llvm-objcopy][MachO] Add support for universal binaries
This diff adds support for universal binaries to llvm-objcopy.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D88400
2020-10-05 10:44:28 -07:00
Alexander Shaposhnikov d20c602aad [Object][MachO] Refactor MachOUniversalWriter
This diff refactors writeUniversalBinary and adds writeUniversalBinaryToBuffer.
This is a preparation for adding support for universal binaries to llvm-objcopy.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D88372
2020-10-03 14:18:38 -07:00
James Henderson a20168d030 [Archive] Don't throw away errors for malformed archive members
When adding an archive member with a problem, e.g. a new bitcode with an
old archiver, containing an unsupported attribute, or an ELF file with a
malformed symbol table, the archiver would throw away the error and
simply add the member to the archive without any symbol entries. This
meant that the resultant archive could be silently unusable when not
using --whole-archive, and result in unexpected undefined symbols.

This change fixes this issue by addressing two FIXMEs and only throwing
away not-an-object errors. However, this meant that some LLD tests which
didn't need symbol tables and were using invalid members deliberately to
test the linker's malformed input handling no longer worked, so this
patch also stops the archiver from looking for symbols in an object if
it doesn't require a symbol table, and updates the tests accordingly.

Differential Revision: https://reviews.llvm.org/D88288

Reviewed by: grimar, rupprecht, MaskRay
2020-10-01 14:03:34 +01:00
Alexander Shaposhnikov 97702c3d92 [Object][MachO] Refine the interface of Slice
This patch performs a minor cleanup of the class Slice:
static methods and constructors which take a pointer but assume that
it's not null now take the argument by reference.
NFC.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D88320
2020-09-25 16:27:45 -07:00
Georgii Rymar 4845531fa8 [lib/Object] - Refine interface of ELFFile<ELFT>. NFCI.
`ELFFile<ELFT>` has many methods that take pointers,
though they assume that arguments are never null and
hence could take references instead.

This patch performs such clean-up.

Differential revision: https://reviews.llvm.org/D87385
2020-09-15 11:38:31 +03:00
Zi Xuan Wu 69f2c79f2a [ELF] Add a new e_machine value EM_CSKY and add some CSKY relocation types
This is the split part of D86269, which add a new ELF machine flag called EM_CSKY and related relocations.
Some target-specific flags and tests for csky can be added in follow-up patches later.

Differential Revision: https://reviews.llvm.org/D86610
2020-09-07 10:42:28 +08:00
Adrien Guinet c6f7ac0071 [llvm-lipo] Add support for bitcode files
A Mach-O universal binary may contain bitcode as a slice.
This diff adds proper handling of such binaries to llvm-lipo.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D85740
2020-08-25 21:11:18 -07:00
Ronak Chauhan e760e85680 [llvm-objdump][AMDGPU] Detect CPU string
AMDGPU ISA isn't backwards compatible and hence -mcpu must always be specified during disassembly.
However, the AMDGPU target CPU is stored in e_flags in the ELF object.

This patch allows targets to implement CPU string detection, and also implements it for AMDGPU by looking at e_flags.

Reviewed By: scott.linder

Differential Revision: https://reviews.llvm.org/D84519
2020-08-18 17:43:16 +05:30
diggerlin 2f0d755d81 [AIX][XCOFF][Patch1] Provide decoding trace back table information API for xcoff object file for llvm-objdump -d
SUMMARY:

1. This patch provided API for decoding the traceback table info and unit test for the these API.

2. Another patchs will do the following things:
2.1 added a new option --traceback-table to decode the trace back table information for xcoff object file when
using llvm-objdump to disassemble the xcoff objfile.

2.2 print out the  traceback table information for llvm-objdump.

Reviewers:  Jason liu, Hubert Tong, James Henderson

Differential Revision: https://reviews.llvm.org/D81585
2020-08-17 16:23:47 -04:00
Sameer Arora 8d58eb11f9 [llvm-libtool-darwin] Refactor ArchiveWriter
Refactoring function `writeArchive` in ArchiveWriter. Added a new
function `writeArchiveBuffer` that returns the archive in a memory
buffer instead of writing it out to the disk. This refactor is necessary
so as to allow `llvm-libtool-darwin` to write universal files containing
archives.

Reviewed by jhenderson, MaskRay, smeenai

Differential Revision: https://reviews.llvm.org/D84858
2020-08-13 10:56:30 -07:00
Fangrui Song 7f8c49b016 [llvm-objdump] Change symbol name/PLT decoding errors to warnings
If the referenced symbol of a J[U]MP_SLOT is invalid (e.g. symbol index 0), llvm-objdump -d will bail out:

```
error: 'a': st_name (0x326600) is past the end of the string table of size 0x7
```

where 0x326600 is the st_name field of the first entry past the end of .symtab

Change it to a warning to continue dumping.
`X86/plt.test` uses a prebuilt executable, so I pick `ELF/AArch64/plt.test`
which has a YAML input and can be easily modified.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D85623
2020-08-13 08:13:42 -07:00
Georgii Rymar 6ae5b9e405 [llvm-readobj] - Make decode_relrs() don't return Expected<>. NFCI.
The `decode_relrs` helper is declared as:

`Expected<std::vector<Elf_Rel>> decode_relrs(Elf_Relr_Range relrs) const;`

it never returns an error though and hence can be simplified to return
a vector.

Differential revision: https://reviews.llvm.org/D85302
2020-08-05 17:05:47 +03:00
Sameer Arora df69492cdf [llvm-libtool-darwin] Refactor Slice and writeUniversalBinary
Refactoring `Slice` class and function `createUniversalBinary` from
`llvm-lipo` into  MachOUniversalWriter. This refactoring is necessary so
as to use the refactored code for creating universal binaries under
llvm-libtool-darwin.

Reviewed by alexshap, smeenai

Differential Revision: https://reviews.llvm.org/D84662
2020-07-31 09:22:35 -07:00
Georgii Rymar 2a4df6a325 [llvm-readobj] - Refactor how the code dumps relocations.
There is a strange "feature" of the code: it handles all relocations as `Elf_Rela`.
For handling `Elf_Rel` it converts them to `Elf_Rela` and passes `bool IsRela` to
specify the real type everywhere.

A related issue is that the
`decode_relrs` helper in lib/Object has to return `Expected<std::vector<Elf_Rela>>`
because of that, though it could return a vector of `Elf_Rel`.

I think we should just start using templates for relocation types, it makes the code
cleaner and shorter. This patch does it.

Differential revision: https://reviews.llvm.org/D83871
2020-07-20 12:05:05 +03:00
Fangrui Song 3ab0f53ef3 [DebugInfo] Respect relocations when decoding DW_EH_PE_sdata4 & DW_EH_PE_sdata8 and support R_ARM_REL32
The addresses in llvm-dwarfdump --eh-frame output for object files are closer to readelf -wf output now.
2020-07-18 09:00:50 -07:00
Fangrui Song 3073a3aa1e [RelocationResolver] Support R_AARCH64_PREL32
Code from D83800 by Yichao Yu
2020-07-17 23:49:15 -07:00
Fangrui Song b922004ea2 [RelocationResolver] Support R_PPC_REL32 & R_PPC64_REL{32,64}
This suppresses `failed to compute relocation: R_PPC_REL32, Invalid data was encountered while parsing the file`
and its 64-bit variants when running llvm-dwarfdump on a PowerPC object file with .eh_frame

Unfortunately it is difficult to test the computation:
DWARFDataExtractor::getEncodedPointer does not use the relocated value
and even if it does, we need to teach llvm-dwarfdump --eh-frame to do
some linker job to report a reasonable address.
2020-07-17 23:29:50 -07:00
Wouter van Oortmerssen cc1b9b680f [WebAssembly] 64-bit (function) pointer fixes.
Accounting for the fact that Wasm function indices are 32-bit, but in wasm64 we want uniform 64-bit pointers.
Includes reloc types for 64-bit table indices.

Differential Revision: https://reviews.llvm.org/D83729
2020-07-16 14:10:22 -07:00
Wouter van Oortmerssen 29f8c9f6c2 [WebAssembly] Triple::wasm64 related cleanup
Differential Revision: https://reviews.llvm.org/D83713
2020-07-16 12:01:10 -07:00
Wouter van Oortmerssen 4d135b0446 [WebAssembly] 64-bit memory limits 2020-07-06 12:40:45 -07:00
Hans Wennborg a8e582c830 [ThinLTO] Always parse module level inline asm with At&t dialect (PR46503)
clang-cl passes -x86-asm-syntax=intel to the cc1 invocation so that
assembly listings produced by the /FA flag are printed in Intel dialect.
That flag however should not affect the *parsing* of inline assembly in
the program. (See r322652)

When compiling normally, AsmPrinter::emitInlineAsm is used for
assembling and defaults to At&t dialect. However, when compiling for
ThinLTO, the code which parses module level inline asm to find symbols
for the symbol table was failing to set the dialect. This patch fixes
that. (See the bug for more details.)

Differential revision: https://reviews.llvm.org/D82862
2020-07-01 09:43:45 +02:00
Simon Pilgrim df813dc09e Error.h - GenericBinaryError - pass Twine arg by reference not value.
This allows us to reduce the Twine.h include to a forward declaration.
2020-06-27 10:12:20 +01:00
Eli Friedman a2caa3b614 Remove GlobalValue::getAlignment().
This function is deceptive at best: it doesn't return what you'd expect.
If you have an arbitrary GlobalValue and you want to determine the
alignment of that pointer, Value::getPointerAlignment() returns the
correct value.  If you want the actual declared alignment of a function
or variable, GlobalObject::getAlignment() returns that.

This patch switches all the users of GlobalValue::getAlignment to an
appropriate alternative.

Differential Revision: https://reviews.llvm.org/D80368
2020-06-23 19:13:42 -07:00
Sam Clegg 79aad89d8d [WebAssembly] Add support for externalref to MC and wasm-ld
This allows code for handling externref values to be processed by the
assembler and linker.

Differential Revision: https://reviews.llvm.org/D81977
2020-06-22 15:57:24 -07:00
Anatoly Trosinenko a5bd75aab8 [MSP430] Enable some basic support for debug information
This commit technically permits LLVM to emit the debug information for ELF files for MSP430 architecture. Aside from this, it only defines the register numbers as defined by part 10.1 of MSP430 EABI specification (assuming the 1-byte subregisters share the register numbers with corresponding full-size registers).

This commit was basically tested by me with TI-provided GCC 8.3.1 toolchain by compiling an example program with `clang` (please note manual linking may be required due to upstream `clang` not yet handling the `-msim` option necessary to run binaries on the GDB-provided simulator) and then running it and single-stepping with `msp430-elf-gdb` like this:

```
$sysroot/bin/msp430-elf-gdb ./test -ex "target sim" -ex "load ./test"
(gdb) ... traditional GDB commands follow ...
```

While this implementation is most probably far from completeness and is considered experimental, it can already help with debugging MSP430 programs as well as finding issues in LLVM debug info support for MSP430 itself.

One of the use cases includes trying to find a point where UBSan check in a trap-on-error mode was triggered.

The expected debug information format is described in the [MSP430 Embedded Application Binary Interface](http://www.ti.com/lit/an/slaa534/slaa534.pdf) specification, part 10.

Differential Revision: https://reviews.llvm.org/D81488
2020-06-22 13:14:07 +03:00
Wouter van Oortmerssen 3b29376e3f [WebAssembly] Adding 64-bit version of R_WASM_MEMORY_ADDR_* relocs
This adds 4 new reloc types.

A lot of code that previously assumed any memory or offset values could be contained in a uint32_t (and often truncated results from functions returning 64-bit values) have been upgraded to uint64_t. This is not comprehensive: it is only the values that come in contact with the new relocation values and their dependents.

A new tablegen mapping was added to automatically upgrade loads/stores in the assembler, which otherwise has no way to select for these instructions (since they are indentical other than for the offset immediate). It follows a similar technique to https://reviews.llvm.org/D53307

Differential Revision: https://reviews.llvm.org/D81704
2020-06-15 10:07:42 -07:00
Jonas Devlieghere 425c6f079b [llvm/Object] Reimplment basic_symbol_iterator in TapiFile
Use indices into the Symbols vector instead of casting the objects in
the vector and dereferencing std::vector::end().

This change is NFC modulo the Windows failure reported by
llvm-clang-x86_64-expensive-checks-win.

Differential revision: https://reviews.llvm.org/D81717
2020-06-12 00:03:32 -07:00
Cyndy Ishida 28fefcc83c [llvm][llvm-nm] add TextAPI/MachO support
Summary:
This completes the needed glueing to support reading tbd files from nm.
This includes specifying which slice filtering with `--arch` and a new
option specifically for tbd files `--add-inlinedinfo` which will show
the reexported libraries that are appended in the tbd file.

Reviewers: ributzka, steven_wu, JDevlieghere, jhenderson

Reviewed By: JDevlieghere

Subscribers: hiraditya, MaskRay, dexonsmith, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D81614
2020-06-11 18:54:16 -07:00
Reid Kleckner 1c03389c29 Re-land "Migrate the rest of COFFObjectFile to Error"
This reverts commit 101fbc0138.

Remove leftover debugging attribute.

Update LLDB as well, which was missed before.
2020-06-11 14:46:16 -07:00
jasonliu 775ef44514 [XCOFF][AIX] report_fatal_error when an overflow section is needed
If there are more than 65534 relocation entries in a single section,
we should generate an overflow section.
Since we don't support overflow section for now, we should generate
an error.

Differential revision: https://reviews.llvm.org/D81104
2020-06-08 19:59:04 +00:00
Nico Weber 101fbc0138 Revert "Migrate the rest of COFFObjectFile to Error"
This reverts commit b5289656b8.
__attribute__((optnone)) doesn't build with msvc, see
http://lab.llvm.org:8011/builders/clang-x64-windows-msvc/builds/16326
2020-06-05 21:20:11 -04:00
Reid Kleckner b5289656b8 Migrate the rest of COFFObjectFile to Error 2020-06-05 16:29:05 -07:00
Reid Kleckner e03a135be8 Re-land "Migrate Binary::checkOffset from error_code to Error, NFC"
This reverts commit 38f3ba591e.

Fix the XCOFF error handling. Unlike std::error_code, Error must be
consumed or handled.
2020-06-05 16:27:31 -07:00
Nico Weber 38f3ba591e Revert "Migrate Binary::checkOffset from error_code to Error, NFC"
This reverts commit 74bd98829d.
Breaks LLVM::section-headers.test everywhere, see e.g.
http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/29940/steps/test-check-all/logs/FAIL%3A%20LLVM%3A%3Asection-headers.test
2020-06-05 17:00:20 -04:00
Reid Kleckner 74bd98829d Migrate Binary::checkOffset from error_code to Error, NFC
In my use case, this saved 100ms of time doing one-time-initialization
for std::error_code().
2020-06-05 13:38:56 -07:00
Simon Pilgrim 0ea52537fe SymbolicFile.h - removed unused FileSystem.h include. NFC.
Exposes a number of implicit dependencies that needs fixing in source files and XCOFFObjectFile.h.
2020-05-28 15:26:31 +01:00
Kazushi (Jam) Marukawa 5921782f74 [VE] Implements minimum MC layer for VE (3/4)
Summary:
Define ELF binary code for VE and modify code where should use this new code.

Depends on D79544.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D79545
2020-05-28 10:07:48 +02:00
Simon Pilgrim 0865d41492 ObjectFile.h - reduce unnecessary includes to forward declarations. NFC.
Fix SubtargetFeature.h include dependency in XCOFFObjectFile.cpp
2020-05-27 14:02:14 +01:00
Xing GUO 1171bef020 [Object] Remove unused variable after D79560. NFC. 2020-05-11 13:03:53 +08:00
Reid Kleckner 39772063f5 [COFF] Use Expected in COFFObjectFile creation
The constructor error out parameter was a bit awkward. Wrap it in a
factory method which can return an error. Make the constructor private.
2020-05-08 14:22:28 -07:00
Reid Kleckner 77ecf90c52 [COFF] Migrate COFFObjectFile to Expected<T>
I noticed that std::error_code() does one-time initialization. Avoid
that overhead with Expected<T> and llvm::Error. Also, it is consistent
with the virtual interface and ELF, and generally cleaner.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D79643
2020-05-08 14:01:39 -07:00
Xing GUO ce86a986c3 [Object] Remove unneeded check in ELFFile<ELFT>::dynamicEntries().
Check for `DynSecSize % sizeof(Elf_Dyn) != 0` is unneeded in this context.

1. If the .dynamic section is acquired from program headers, the .dynamic
section is "cut off" by

```
makeArrayRef(..., Phdr.p_filesz / sizeof(Elf_Dyn));
DynSeSize = Phdr.p_filesz;
```

2. If the .dynamic section is acquired from section headers, the .dynamic
section is checked in `getSectionContentsAsArray<Elf_Dyn>(&Sec)`.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D79560
2020-05-08 09:54:36 +08:00
Xing GUO ff6a0b6a8e [Object] Change ObjectFile::getSymbolValue() return type to Expected<uint64_t>
Summary:
In D77860, we have changed `getSymbolFlags()` return type to `Expected<uint32_t>`.
This change helps bubble the error further up the stack.

Reviewers: jhenderson, grimar, JDevlieghere, MaskRay

Reviewed By: jhenderson

Subscribers: hiraditya, MaskRay, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79075
2020-05-02 14:04:44 +08:00
Simon Pilgrim 93a33bab60 RecordStreamer.h - cleanup includes and forward declarations. NFC.
Reduce MCSymbol.h include to forward declaration.
Remove unused GlobalValue foward declaration.
2020-04-22 15:07:18 +01:00
vgxbj ac00376a13 [Object] Change uint32_t getSymbolFlags() to Expected<uint32_t> getSymbolFlags().
This change enables getSymbolFlags() to return errors which benefit error reporting in clients.

Differential Revision: https://reviews.llvm.org/D77860
2020-04-18 21:27:57 +08:00
Wouter van Oortmerssen 48139ebc3a [WebAssembly] Add int32 DW_OP_WASM_location variant
This to allow us to add reloctable global indices as a symbol.
Also adds R_WASM_GLOBAL_INDEX_I32 relocation type to support it.

See discussion in https://github.com/WebAssembly/debugging/issues/12
2020-04-16 16:32:17 -07:00
Sam Clegg 2a68573a35 Enable finding bitcode in wasm objects
This commit fixes using functions in `IRObjectFile` to load bitcode from
wasm objects by recognizing the file magic for wasm and also inheriting
the default implementation of classifying sections as bitcode.

Patch By: alexcrichton

Differential Revision: https://reviews.llvm.org/D78199
2020-04-15 12:33:33 -07:00
Mehdi Amini 384ca190ae Revert "Move ModuleSummaryAnalysis from libAnalysis to libObject to break the dependency from Analysis to Object"
This reverts commit 10df1563d6.

Some buildbots are broken.
2020-04-14 00:27:08 +00:00
Mehdi Amini 10df1563d6 Move ModuleSummaryAnalysis from libAnalysis to libObject to break the dependency from Analysis to Object
ModuleSummaryAnalysis is the only file in libAnalysis that brings a
dependency on the CodeGen layer from libAnalysis, moving it breaks this
dependency.

Differential Revision: https://reviews.llvm.org/D77994
2020-04-13 23:12:11 +00:00
Jessica Clarke 49e20c4c9e [RISCV] Consume error from parsing attributes section
Summary:
We don't consume the error from getBuildAttributes, so an assertions
build crashes with "Program aborted due to an unhandled Error:".
Explicitly consume it like the ARM version in that case.

Reviewers: asb, jhenderson, MaskRay, HsiangKai

Reviewed By: MaskRay

Subscribers: kristof.beyls, hiraditya, simoncook, kito-cheng, shiva0217, rogfer01, rkruppe, psnobl, benna, Jim, lenary, s.egerton, sameer.abuasal, luismarques, evandro, danielkiss, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77841
2020-04-10 15:05:53 +01:00
diggerlin a26a441b99 [llvm-objdump][XCOFF] Use symbol index+symbol name + storage mapping class as label for -D
SUMMARY:

For the llvm-objdump -D, the symbol name is used as a label in the disassembly for the specific address (when a symbol address is equal to the virtual address in the dump).

In XCOFF, multiple symbols may have the same name, being differentiated by their storage mapping class. It is helpful to print the QualName and not just the name when forming the output label for a csect symbol. The symbol index further removes any ambiguity caused by duplicate names.

To maintain compatibility with the binutils objdump, the XCOFF-specific --symbol-description option is added to enable the enhanced format.

Reviewers: hubert.reinterpretcast, James Henderson, Jason Liu ,daltenty
Subscribers: wuzish, nemanjai, hiraditya

Differential Revision: https://reviews.llvm.org/D72973
2020-04-06 10:10:10 -04:00
Djordje Todorovic 29d253c4c6 [Object] Add the method for checking if a section is a debug section
Different file formats have different naming style for the debug
sections. The method is implemented for ELF, COFF and Mach-O formats.

Differential Revision: https://reviews.llvm.org/D76276
2020-04-02 10:56:00 +02:00
Hubert Tong 478af4479a [Object] Update ObjectFile::makeTriple for XCOFF
Summary:
When we encounter an XCOFF file, reflect that in the triple information.
In addition to knowing the object file format, we know that the
associated OS is AIX.

This means that we can expect that there is no output difference in the
processing of an XCOFF32 input file between cases where the triple is
left unspecified by the user and cases where the user specifies
`--triple powerpc-ibm-aix` explicitly.

Reviewers: jhenderson, sfertile, jasonliu, daltenty

Reviewed By: jasonliu

Subscribers: wuzish, nemanjai, hiraditya, MaskRay, rupprecht, steven.zhang, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77025
2020-03-31 17:26:30 -04:00
Kai Wang 581ba35291 [RISCV] ELF attribute section for RISC-V.
Leverage ARM ELF build attribute section to create ELF attribute section
for RISC-V. Extract the common part of parsing logic for this section
into ELFAttributeParser.[cpp|h] and ELFAttributes.[cpp|h].

Differential Revision: https://reviews.llvm.org/D74023
2020-03-31 16:16:19 +08:00
jasonliu d60d7d69de [llvm-objdump][XCOFF][AIX] Implement -r option
Summary:
Implement several XCOFF hooks to get '-r' option working for llvm-objdump -r.

Reviewer: DiggerLin, hubert.reinterpretcast, jhenderson, MaskRay

Differential Revision: https://reviews.llvm.org/D75131
2020-03-27 16:05:42 +00:00
Georgii Rymar 30c1f9a558 [llvm-readobj] - Fix a crash when DT_STRTAB is broken.
We might have a crash scenario when we have an invalid DT_STRTAB value
that is larger than the file size. I've added a test case to demonstrate.

Differential revision: https://reviews.llvm.org/D76706
2020-03-27 13:18:08 +03:00
Heejin Ahn f93426c5b9 [WebAssembly] Move event section before global section
Summary:
https://github.com/WebAssembly/exception-handling/issues/98

Also this moves many parts of code to make code align with the section
order, even if they don't affect the output.

Reviewers: tlively

Subscribers: dschuff, sbc100, hiraditya, sunfish, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D76752
2020-03-25 11:49:03 -07:00
Reid Kleckner 47359fbd2e Drop a StringMap.h include, NFC
$ diff -u <(sort thedeps-before.txt) <(sort thedeps-after.txt) \
    | grep '^[-+] ' | sort | uniq -c | sort -nr
    231 -    llvm/include/llvm/ADT/StringMap.h
    171 -    llvm/include/llvm/Support/AllocatorBase.h
    142 -    llvm/include/llvm/Support/PointerLikeTypeTraits.h
2020-03-11 15:45:34 -07:00
James Henderson 326bc1da45 [Object] Fix handling of large archive members
The archive library truncated the size of archive members whose size was
greater than max uint32_t. This patch fixes the issue and adds some unit
tests to verify.

Reviewed by: ruiu, MaskRay, grimar, rupprecht

Differential Revision: https://reviews.llvm.org/D75742
2020-03-11 10:29:45 +00:00
Fangrui Song 791efb148f [ARM] Rewrite ARMAttributeParser
* Delete boilerplate
* Change functions to return `Error`
* Test parsing errors
* Update callers of ARMAttributeParser::parse() to check the `Error` return value.

Since this patch touches nearly everything in the file, I apply
http://llvm.org/docs/Proposals/VariableNames.html and change variable
names to lower case.

Reviewed By: compnerd

Differential Revision: https://reviews.llvm.org/D75015
2020-03-05 10:57:27 -08:00
Michael Trent df058699d3 Fix dyld opcode *_ADD_ADDR_IMM_SCALED error detection.
Summary:
Move the check for malformed REBASE_OPCODE_ADD_ADDR_IMM_SCALED and
BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED opcodes after the immediate
has been applied to the SegmentOffset. This fixes specious errors
where SegmentOffset is pointing between two sections when trying to
correct the SegmentOffset value.

Update the regression tests to verify the proper error message.

Reviewers: pete, ab, lhames, steven_wu, jhenderson

Reviewed By: pete

Subscribers: hiraditya, dexonsmith, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D75629
2020-03-04 19:57:45 -08:00
serge-sans-paille 400b6c083f [NFC] Fix typo in error message 2020-02-24 18:22:05 +01:00
Francis Visoiu Mistrih 3f785212e9 Revert "[macho][NFC] Extract all CPU_(SUB_)TYPE logic to libObject"
This reverts commit 726c342ce2.

This breaks the windows bots with linker errors.
2020-02-20 10:51:25 -08:00
Francis Visoiu Mistrih 726c342ce2 [macho][NFC] Extract all CPU_(SUB_)TYPE logic to libObject
This moves all the logic of converting LLVM Triples to
MachO::CPU_(SUB_)TYPE from the specific target (Target)AsmBackend to
more convenient functions in libObject.

This also gets rid of the separate two X86AsmBackend classes.

Differential Revision: https://reviews.llvm.org/D74808
2020-02-20 10:28:07 -08:00
Sam Clegg bd4812776b [WebAssembly] Use llvm::Optional to store optional symbol attributes. NFC.
The changes the in-memory representation of wasm symbols such that their
optional ImportName and ImportModule use llvm::Optional.

ImportName is set whenever WASM_SYMBOL_EXPLICIT_NAME flag is set.
ImportModule (for imports) is currently always set since it defaults to
"env".

In the future we can possibly extent to binary format distingish
import which have explit module names.

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74109
2020-02-19 17:25:33 -08:00
serge-sans-paille 498a6136a2 Prevent gcc from issuing a warning upon coffnamecpy
This is a follow up to d1262a6e9, more explicit to cope with GCC smartness.

Differential Revision: https://reviews.llvm.org/D74666
2020-02-18 16:13:59 +01:00
Fangrui Song 6d2d589b06 [MC] De-capitalize another set of MCStreamer::Emit* functions
Emit{ValueTo,Code}Alignment Emit{DTP,TP,GP}* EmitSymbolValue etc
2020-02-14 19:26:52 -08:00
Fangrui Song a55daa1461 [MC] De-capitalize some MCStreamer::Emit* functions 2020-02-14 19:11:53 -08:00
Fangrui Song bcd24b2d43 [AsmPrinter][MCStreamer] De-capitalize EmitInstruction and EmitCFI* 2020-02-13 22:08:55 -08:00
Bill Wendling c55cf4afa9 Revert "Remove redundant "std::move"s in return statements"
The build failed with

  error: call to deleted constructor of 'llvm::Error'

errors.

This reverts commit 1c2241a793.
2020-02-10 07:07:40 -08:00
Bill Wendling 1c2241a793 Remove redundant "std::move"s in return statements 2020-02-10 06:39:44 -08:00
jasonliu 3bbe7a681e [XCOFF][AIX] Support basic relocation type on AIX
Summary:

This patch intends to support three most common relocation type
on AIX: R_POS, R_TOC, R_RBR.
These three relocation type will be needed for object file generation
on AIX for small code model.
We will have follow up patches to bring relocation support for
large code model on AIX.

Reviewers: hubert.reinterpretcast, daltenty, DiggerLin

Differential Revision: https://reviews.llvm.org/D72027
2020-01-30 15:59:09 +00:00
Nate Voorhies a40b3e3b61 [NFC] Fix unused variable warning.
Reviewers: dschuff

Reviewed By: dschuff

Subscribers: hiraditya, aheejin, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D73591
2020-01-28 17:19:23 -08:00
Benjamin Kramer a9bc7b83a4 Another round of GCC5 fixes. 2020-01-29 02:09:24 +01:00
Benjamin Kramer adcd026838 Make llvm::StringRef to std::string conversions explicit.
This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.

This is mostly mechanical from a custom clang-tidy check, with a lot of
manual fixups. It uncovers a lot of minor inefficiencies.

This doesn't actually modify StringRef yet, I'll do that in a follow-up.
2020-01-28 23:25:25 +01:00
Derek Schuff da6a896e6b [WebAssembly] Add WebAssembly support to llvm-symbolizer
The only thing missing for basic llvm-symbolizer support is the ability on
lib/Object to get a wasm symbol's section ID, which allows sorting and
computation of the symbols' sizes.

Also, when the WasmAsmParser switches sections on new functions, also add the
section to the list of Dwarf sections if Dwarf is being generated for assembly;
this allows writing of simple tests.

Reviewers: sbc100, jhenderson, aardappel

Differential Revision: https://reviews.llvm.org/D73246
2020-01-28 09:55:38 -08:00
Alex Richardson 894f742acb [MIPS][ELF] Use PC-relative relocations in .eh_frame when possible
When compiling position-independent executables, we now use
DW_EH_PE_pcrel | DW_EH_PE_sdata4. However, the MIPS ABI does not define a
64-bit PC-relative ELF relocation so we cannot use sdata8 for the large
code model case. When using the large code model, we fall back to the
previous behaviour of generating absolute relocations.

With this change clang-generated .o files can be linked by LLD without
having to pass -Wl,-z,notext (which creates text relocations).
This is simpler than the approach used by ld.bfd, which rewrites the
.eh_frame section to convert absolute relocations into relative references.

I saw in D13104 that apparently ld.bfd did not accept pc-relative relocations
for MIPS ouput at some point. However, I also checked that recent ld.bfd
can process the clang-generated .o files so this no longer seems true.

Reviewed By: atanasyan
Differential Revision: https://reviews.llvm.org/D72228
2020-01-13 14:14:03 +00:00
Georgii Rymar 301cb91428 [llvm-readobj] - Remove an excessive helper for printing dynamic tags.
This removes the `getTypeString` from readeobj source because it
almost duplicates the existent method: `ELFFile<ELFT>::getDynamicTagAsString`.

Side effect: now it prints "<unknown:>0xHEXVALUE" instead of "(unknown)" for unknown values.
llvm-readelf before this patch printed:

```
0x0000000012345678 (unknown) 0x8765432187654321
0x000000006abcdef0 (unknown) 0x9988776655443322
0x0000000076543210 (unknown) 0x5555666677778888
```

and now it prints:

```
0x0000000012345678 (<unknown:>0x12345678) 0x8765432187654321
0x000000006abcdef0 (<unknown:>0x6abcdef0) 0x9988776655443322
0x0000000076543210 (<unknown:>0x76543210) 0x5555666677778888
```

GNU reaedlf prints different thing:

```
0x0000000012345678 (<unknown>: 12345678) 0x8765432187654321
0x000000006abcdef0 (Operating System specific: 6abcdef0) 0x9988776655443322
0x0000000076543210 (Processor Specific: 76543210) 0x5555666677778888
```

I am not sure we want to follow GNU here. Even if we do, it should be separate
patch probably. The new output looks better and closer to GNU anyways,
and the code is a bit simpler.

Differential revision: https://reviews.llvm.org/D71835
2019-12-24 11:55:45 +03:00
Sam Clegg 881d877846 [WebAssembly] Add new `export_name` clang attribute for controlling wasm export names
This is equivalent to the existing `import_name` and `import_module`
attributes which control the import names in the final wasm binary
produced by lld.

This maps the existing

This attribute currently requires a string rather than using the
symbol name for a couple of reasons:

1. Avoid confusion with static and dynamic linking which is
   based on symbol name.  Exporting a function from a wasm module using
   this directive is orthogonal to both static and dynamic linking.
2. Avoids name mangling.

Differential Revision: https://reviews.llvm.org/D70520
2019-12-11 11:54:57 -08:00
Luís Marques 7bf721e59c [Object][RISCV] Resolve R_RISCV_32_PCREL
Summary: Add support for resolving `R_RISCV_32_PCREL` relocations. Those aren't
actually resolved AFAIK, but support is still needed to avoid llvm-dwarfdump
errors. The use of these relocations was introduced in D66419 but the
corresponding resolving wasn't added then. The test adds a check that should
catch future unresolved relocations.

Reviewers: asb, lenary
Reviewed By: asb
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70204
2019-11-21 23:34:05 +00:00
Luís Marques b8b57087d3 [Object][RISCV] Fix R_RISCV_SET6 and R_RISCV_SUB6 relocations resolution
Summary: These relocations had a suspicious resolution logic, given their name.
This patch makes the resolution match the LLD one, which makes more sense.

Reviewers: asb, lenary, HsiangKai, jrtc27
Reviewed By: HsiangKai
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70396
2019-11-21 22:54:10 +00:00
Tom Stellard ab411801b8 [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries"
Summary:
Most libraries are defined in the lib/ directory but there are also a
few libraries defined in tools/ e.g. libLLVM, libLTO.  I'm defining
"Component Libraries" as libraries defined in lib/ that may be included in
libLLVM.so.  Explicitly marking the libraries in lib/ as component
libraries allows us to remove some fragile checks that attempt to
differentiate between lib/ libraries and tools/ libraires:

1. In tools/llvm-shlib, because
llvm_map_components_to_libnames(LIB_NAMES "all") returned a list of
all libraries defined in the whole project, there was custom code
needed to filter out libraries defined in tools/, none of which should
be included in libLLVM.so.  This code assumed that any library
defined as static was from lib/ and everything else should be
excluded.

With this change, llvm_map_components_to_libnames(LIB_NAMES, "all")
only returns libraries that have been added to the LLVM_COMPONENT_LIBS
global cmake property, so this custom filtering logic can be removed.
Doing this also fixes the build with BUILD_SHARED_LIBS=ON
and LLVM_BUILD_LLVM_DYLIB=ON.

2. There was some code in llvm_add_library that assumed that
libraries defined in lib/ would not have LLVM_LINK_COMPONENTS or
ARG_LINK_COMPONENTS set.  This is only true because libraries
defined lib lib/ use LLVMBuild.txt and don't set these values.
This code has been fixed now to check if the library has been
explicitly marked as a component library, which should now make it
easier to remove LLVMBuild at some point in the future.

I have tested this patch on Windows, MacOS and Linux with release builds
and the following combinations of CMake options:

- "" (No options)
- -DLLVM_BUILD_LLVM_DYLIB=ON
- -DLLVM_LINK_LLVM_DYLIB=ON
- -DBUILD_SHARED_LIBS=ON
- -DBUILD_SHARED_LIBS=ON -DLLVM_BUILD_LLVM_DYLIB=ON
- -DBUILD_SHARED_LIBS=ON -DLLVM_LINK_LLVM_DYLIB=ON

Reviewers: beanz, smeenai, compnerd, phosek

Reviewed By: beanz

Subscribers: wuzish, jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, mgorny, mehdi_amini, sbc100, jgravelle-google, hiraditya, aheejin, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, steven_wu, rogfer01, MartinMosbeck, brucehoult, the_o, dexonsmith, PkmX, jocewei, jsji, dang, Jim, lenary, s.egerton, pzheng, sameer.abuasal, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70179
2019-11-21 10:48:08 -08:00
diggerlin ea13683f3d The patch is the compiler error specific on the compile error on CMVC
SUMMARY:

CMVC has a compiler error on the
const uint64_t OffsetToRaw = is64Bit()
                                   ? toSection64(Sec)->FileOffsetToRawData
                                   : toSection32(Sec)->FileOffsetToRawData;

while  gcc  compiler do not have the problem.
I have to change the code to

  uint64_t OffsetToRaw;
  if (is64Bit())
    OffsetToRaw = toSection64(Sec)->FileOffsetToRawData;
  else
    OffsetToRaw = toSection32(Sec)->FileOffsetToRawData;

Reviewers: Sean Fertile
Subscribers: rupprecht, seiyai,hiraditya

Differential Revision: https://reviews.llvm.org/D70255
2019-11-19 15:17:56 -05:00
diggerlin b91f798fde implement printing out raw section data of xcoff objectfile for llvm-objdump
SUMMARY:
implement printing out raw section data of xcoff objectfile for llvm-objdump
and option -D --disassemble-all option for llvm-objdump

Reviewers: Sean Fertile
Subscribers: rupprecht, seiyai,hiraditya

Differential Revision: https://reviews.llvm.org/D70255
2019-11-19 13:31:00 -05:00
Pavel Labath c0fc29c468 Add operator<< for object::SectionedAddress
The main motivation for this is better failure messages in unit tests.

Split off from D70394.
2019-11-19 10:34:30 +01:00
Leonard Chan 66b6b92765 Revert "implement printing out raw section data of xcoff objectfile for llvm-objdump"
This reverts commit 8f8a9f3437.

Reverting since this patch seems to break a lot of llvm buildbots.
2019-11-18 20:05:57 -08:00
Daniel Sanders 1791901787 [macho] Allow CPUSubtype to contribute to architecture identification
Summary:
Sometimes the CPUSubtype determines the Triple::ArchType that must be used.
Add the subtype to the API's to allow targets that need this to correctly
identify the contents of the binary.

Reviewers: pete

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70345
2019-11-18 12:57:39 -08:00
diggerlin 8f8a9f3437 implement printing out raw section data of xcoff objectfile for llvm-objdump
SUMMARY:
implement printing out raw section data of xcoff objectfile for llvm-objdump
and option -D --disassemble-all option for llvm-objdump

Reviewers: Sean Fertile
Subscribers: rupprecht, seiyai,hiraditya

Differential Revision: https://reviews.llvm.org/D70255
2019-11-18 15:24:55 -05:00
Reid Kleckner 2cb3bfe975 Revert "[XCOFF] Fix link errors from explicit template instantiation"
This reverts commit c989993ba1.

maskray already fixed the explicit instantiation definition in the .cpp
file, and these extern template declarations seem to be causing
warnings that I don't understand.
2019-11-07 09:39:13 -08:00
Reid Kleckner c989993ba1 [XCOFF] Fix link errors from explicit template instantiation
I happen to be using clang-cl+lld-link locally, and I get these link
errors:

lld-link: error: undefined symbol: public: unsigned short __cdecl llvm::object::XCOFFSectionHeader<struct llvm::object::XCOFFSectionHeader64>::getSectionType(void) const
>>> referenced by C:\src\llvm-project\llvm\tools\llvm-readobj\XCOFFDumper.cpp:106
>>>               tools\llvm-readobj\CMakeFiles\llvm-readobj.dir\XCOFFDumper.cpp.obj:(public: virtual void __cdecl `anonymous namespace'::XCOFFDumper::printSectionHeaders(void))

I suspect this is because the explicit template instaniation appears
before the inline method definitions in the .cpp file, so they aren't
available at the point of instantiation. Move the explicit instantiation
later.

Also, forward declare the explicit instantiation for good measure.
2019-11-07 09:29:48 -08:00
Fangrui Song f8622543ad [XCOFF] Move explicit instantions after member function definitions to fix clang builds 2019-11-07 09:25:55 -08:00
diggerlin c63c1a72da Using crtp to refactor the xcoff section header
SUMMARY:
According to https://reviews.llvm.org/D68575#inline-617586, Create a NFC patch for it.

Using crtp to refactor the xcoff section header
Move the define of SectionFlagsReservedMask and SectionFlagsTypeMask from XCOFFDumper.cpp to XCOFFObjectFile.h

Reviewers: hubert.reinterpretcast,jasonliu
Subscribers: rupprecht, seiyai,hiraditya

Differential Revision: https://reviews.llvm.org/D69131
2019-11-07 11:51:34 -05:00
Mirko Brkusanin 4b63ca1379 [Mips] Use appropriate private label prefix based on Mips ABI
MipsMCAsmInfo was using '$' prefix for Mips32 and '.L' for Mips64
regardless of -target-abi option. By passing MCTargetOptions to MCAsmInfo
we can find out Mips ABI and pick appropriate prefix.

Tags: #llvm, #clang, #lldb

Differential Revision: https://reviews.llvm.org/D66795
2019-10-23 12:24:35 +02:00
George Rimar 2bf01dcbaa [llvm/Object] - Make ELFObjectFile::getRelocatedSection return Expected<section_iterator>
It returns just a section_iterator currently and have a report_fatal_error call inside.
This change adds a way to return errors and handle them on caller sides.

The patch also changes/improves current users and adds test cases.

Differential revision: https://reviews.llvm.org/D69167

llvm-svn: 375408
2019-10-21 11:06:38 +00:00
Thomas Lively 393d0f799f [WebAssembly] Allow multivalue signatures in object files
Summary:
Also changes the wasm YAML format to reflect the possibility of having
multiple return types and to put the returns after the params for
consistency with the binary encoding.

Reviewers: aheejin, sbc100

Subscribers: dschuff, jgravelle-google, hiraditya, sunfish, arphaman, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69156

llvm-svn: 375283
2019-10-18 20:27:30 +00:00