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8 Commits

Author SHA1 Message Date
Alexander Shaposhnikov 913bc312b5 [llvm-objcopy][MachO] Add support for LC_CODE_SIGNATURE 
This diff adds support for copying binaries
containing a LC_CODE_SIGNATURE load command.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D81768
 2020-06-15 18:55:59 -07:00
Seiya Nuta 552bcb854c Recommit "[llvm-objcopy][MachO] Support load commands used in executables/shared libraries" 
Summary:
This patch implements copying some load commands that appear in executables/shared libraries such as the indirect symbol table.

I don't add tests intentionally because this patch is incomplete: we need a layout algorithm for executables/shared libraries. I'll submit it as a separate patch with tests.

Reviewers: alexshap, rupprecht, jhenderson, compnerd

Reviewed By: alexshap

Subscribers: abrachet, mgorny, mgrang, MaskRay, mtrent, jakehehrlich, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63395

llvm-svn: 369298
 2019-08-19 21:05:31 +00:00
Seiya Nuta 1e335611ad Revert r369230 and r369231 
Looks these commits break CI builds:

- http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-gn/builds/4159

This commit reverts r369230 and r369231 (git coommit: 4a198a7 and dee9546).

llvm-svn: 369234
 2019-08-19 06:45:48 +00:00
Seiya Nuta 4a198a7f99 [llvm-objcopy][MachO] Support load commands used in executables/shared libraries 
Summary:
This patch implements copying some load commands that appear in executables/shared libraries such as the indirect symbol table.

I don't add tests intentionally because this patch is incomplete: we need a layout algorithm for executables/shared libraries. I'll submit it as a separate patch with tests.

Reviewers: alexshap, rupprecht, jhenderson, compnerd

Reviewed By: alexshap

Subscribers: abrachet, mgorny, mgrang, MaskRay, mtrent, jakehehrlich, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63395

llvm-svn: 369230
 2019-08-19 05:37:38 +00:00
Seiya Nuta f923d9b53f [llvm-objcopy][MachO] Rebuild the symbol/string table in the writer 
Summary: Build the string table using StringTableBuilder, reassign symbol indices, and update symbol indices in relocations to allow adding/modifying/removing symbols from the object.

Reviewers: alexshap, rupprecht, jhenderson

Reviewed By: alexshap

Subscribers: mgorny, jakehehrlich, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63309

llvm-svn: 364000
 2019-06-21 00:21:50 +00:00
Seiya Nuta b728e53b95 [llvm-objcopy][MachO] Recompute and update offset/size fields in the writer 
Summary:
Recompute and update offset/size fields so that we can implement llvm-objcopy options like --only-section.

This patch is the first step and focuses on supporting load commands that covered by existing tests: executable files and
dynamic libraries are not supported.

Reviewers: alexshap, rupprecht, jhenderson

Reviewed By: alexshap, rupprecht

Subscribers: compnerd, jakehehrlich, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62652

llvm-svn: 362863
 2019-06-08 01:22:54 +00:00
Chandler Carruth 127252b7d9 Update new files added to llvm-objcopy to use the new file header. 
llvm-svn: 353666
 2019-02-11 08:25:19 +00:00
Alexander Shaposhnikov d911ed10af [llvm-objcopy] Add ability to copy MachO object files 
This diff implements first bits for copying (without modification) MachO object files.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D54674

llvm-svn: 352944
 2019-02-02 00:38:07 +00:00