Commit Graph

15 Commits

Author SHA1 Message Date
Haowei Wu 784c7debb2 [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 15313f64be [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 a1d0589266 [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 d034a94e7b Revert "[llvm-elfabi] Add flag to preserve timestamp when output is the same"
This reverts commit fddb417449. which
causes test failures on Mac builders.
2020-12-29 17:26:22 -08:00
Haowei Wu fddb417449 [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 ffbce65f95 [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 803745b945 [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 cf43308718 [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 ae736d2957 Revert "[llvm-elfabi] Emit ELF header and string table sections"
This reverts commit 53c5fdd59a.

Reason of revert: Some builders failed to build with ld.
2020-11-23 11:58:51 -08:00
Haowei Wu 53c5fdd59a [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 9218ff50f9 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 acb33cba6d [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 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
Haowei Wu ee5d07e6ce 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 d650cbc349 [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