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19 Commits

Author SHA1 Message Date
Simon Pilgrim
33f952ff1c IFSStub.cpp - consistently use default case to silence 'not all control paths return' MSVC warnings. NFCI. 2021-07-21 11:59:34 +01:00
Haowei Wu
5403a31116 [ifs][elfabi] Merge llvm-ifs/elfabi tools
This change merges llvm-elfabi and llvm-ifs tools.

Differential Revision: https://reviews.llvm.org/D100139
2021-07-19 11:23:19 -07:00
Haowei Wu
bcce63dd25 [ifs] Prepare llvm-ifs for elfabi/ifs merging.
This diff changes llvm-ifs to use unified IFS file format
and perform other renaming changes in preparation for the
merging between elfabi/ifs.

Differential Revision: https://reviews.llvm.org/D99810
2021-07-19 11:23:00 -07:00
Haowei Wu
db5e2f303b [elfabi] Prepare elfabi/ifs merging.
This change implements unified text stub format and command line
interface proposed in the elfabi/ifs merge plan.

Differential Revision: https://reviews.llvm.org/D99399
2021-07-19 11:22:43 -07:00
Haowei Wu
7c097db22c [elfabi] Fix a bug when .dynsym contains no non-local symbol
This patch fixed a bug when elbabi was supplied with a tbe file
contains no non-local symbol. Before this patch, it wrote 0 to
sh_info of the .dynsym section, making the ELF stub file invalid.
This patch fixed this issue.

Differential Revision: https://reviews.llvm.org/D96930
2021-02-19 11:36:53 -08:00
Haowei Wu
4cba78c0ca [llvm-elfabi] Support ELF file that lacks .gnu.hash section
Before this change, when reading ELF file, elfabi determines number of
entries in .dynsym by reading the .gnu.hash section. This change makes
elfabi read section headers directly first. This change allows elfabi
works on ELF files which do not have .gnu.hash sections.

Differential Revision: https://reviews.llvm.org/D93362
2021-01-26 12:31:52 -08:00
Haowei Wu
85e960e3f0 [llvm-elfabi] Add flag to preserve timestamp when output is the same
This change adds '--write-if-changed' flag to llvm-elfabi tool. When
enabled, llvm-elfabi will not overwrite the existing file if the
content of the file will not be changed, which preserves the
timestamp.

Differential Revision: https://reviews.llvm.org/D92902
2020-12-29 20:27:06 -08:00
Haowei Wu
8395b2b8fd Revert "[llvm-elfabi] Add flag to preserve timestamp when output is the same"
This reverts commit fddb41744958d21635a60622cfb4067122810bcc. which
causes test failures on Mac builders.
2020-12-29 17:26:22 -08:00
Haowei Wu
1e70786482 [llvm-elfabi] Add flag to preserve timestamp when output is the same
This change adds '--write-if-changed' flag to llvm-elfabi tool. When
enabled, llvm-elfabi will not overwrite the existing file if the
content of the file will not be changed, which preserves the
timestamp.

Differential Revision: https://reviews.llvm.org/D92902
2020-12-29 14:43:47 -08:00
Georgii Rymar
437027774a [lib/Object, tools] - Make ELFObjectFile::getELFFile return reference.
We always have an object, so we don't have to return a pointer.

Differential revision: https://reviews.llvm.org/D92560
2020-12-04 16:02:29 +03:00
Haowei Wu
fa00bbcb83 [llvm-elfabi] Emit ELF .dynsym, .dynamic sections
This change makes llvm-elfabi tool to emit .dynsym and .dynamic
sections.

Differential Revision: https://reviews.llvm.org/D89432
2020-11-24 00:17:04 -08:00
Haowei Wu
9267952bee [llvm-elfabi] Emit ELF header and string table sections
This change serves to create the initial framework for outputting ELF
files from llvm-elfabi.

Differential Revision: https://reviews.llvm.org/D61767
2020-11-23 12:18:58 -08:00
Haowei Wu
a30b09c09d Revert "[llvm-elfabi] Emit ELF header and string table sections"
This reverts commit 53c5fdd59a5cf7fbb4dcb7a7e84c9c4a40d32a84.

Reason of revert: Some builders failed to build with ld.
2020-11-23 11:58:51 -08:00
Haowei Wu
c90bb24fa0 [llvm-elfabi] Emit ELF header and string table sections
This change serves to create the initial framework for outputting ELF
files from llvm-elfabi.

Differential Revision: https://reviews.llvm.org/D61767
2020-11-23 11:31:57 -08:00
serge-sans-paille
82b6e6053d llvmbuildectomy - replace llvm-build by plain cmake
No longer rely on an external tool to build the llvm component layout.

Instead, leverage the existing `add_llvm_componentlibrary` cmake function and
introduce `add_llvm_component_group` to accurately describe component behavior.

These function store extra properties in the created targets. These properties
are processed once all components are defined to resolve library dependencies
and produce the header expected by llvm-config.

Differential Revision: https://reviews.llvm.org/D90848
2020-11-13 10:35:24 +01:00
Cyndy Ishida
cf2365befb [llvm] Fix ODRViolations for VersionTuple YAML specializations NFC
It appears for Swift there was confusing errors when trying to parse APINotes, when libAPINotes and libInterfaceStub are linked, they both export symbol
`__ZN4llvm4yaml7yamlizeINS_12VersionTupleEEENSt3__19enable_ifIXsr16has_ScalarTraitsIT_EE5valueEvE4typeERNS0_2IOERS5_bRNS0_12EmptyContextE`, and discovered
same symbol defined within llvm-ifs.

This consolidates the boilerplate into YAMLTraits and defers the specific validation in reading the whole input.
fixes: rdar://problem/70450563

Reviewed By: phosek, dblaikie

Differential Revision: https://reviews.llvm.org/D89764
2020-10-20 18:29:15 -07:00
Georgii Rymar
dfa9fe5b23 [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
Haowei Wu
b3b202c31b Remove unnecessary HEADER_DIRS in lib/InterfaceStub/CMakeLists.txt
This change removes unnecessary HEADER_DIRS from //llvm/lib/
InterfaceStub/CMakeLists.txt file.

Differential Revision: https://reviews.llvm.org/D85936
2020-08-14 11:22:50 -07:00
Haowei Wu
d8abdb26ca [elfabi] Move llvm-elfabi related code to InterfaceStub library
This change moves elfabi related code to llvm/InterfaceStub library
so it can be shared by multiple llvm tools without causing cyclic
dependencies.

Differential Revision: https://reviews.llvm.org/D85678
2020-08-13 11:51:44 -07:00