15 Commits

Author SHA1 Message Date
Haowei Wu
6103fdfab4 [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
61fa9afe4c [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
8b4acb067f [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
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 fddb41744958d21635a60622cfb4067122810bcc. 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 53c5fdd59a5cf7fbb4dcb7a7e84c9c4a40d32a84.

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
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
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