The LC_SUB_FRAMEWORK, LC_SUB_UMBRELLA, LC_SUB_CLIENT, and LC_SUB_LIBRARY
are used to indicate related libraries, binaries or framework names.
Their only payload is the string with the name of the object. Adding
those commands to the list of ignored/skipped load commands will avoid
an error that stop the process of copying/stripping and will copy their
contents verbatim.
Additionally, in order to have a test for this case, `yaml2obj` now
allows those four commands to contain a `Content`.
Differential Revision: https://reviews.llvm.org/D106412
The load command is currently specific to arm64 and holds information
for instruction rewriting, e.g. converting a GOT load to an ADR to
compute a local address.
(On ELF the information is usually conveyed by relocations, e.g.
R_X86_64_REX_GOTPCRELX, R_PPC64_TOC16_HA)
Reviewed By: alexander-shaposhnikov
Differential Revision: https://reviews.llvm.org/D104968
An ARM64_RELOC_ADDEND relocation reuses the symbol field for the addend value.
We should pass through such relocations.
Reviewed By: alexander-shaposhnikov
Differential Revision: https://reviews.llvm.org/D104967
The right symbol flag mask is ~0x7, not ~0xf.
Also emit string names for the other flags (we were missing some).
Reviewed By: #lld-macho, gkm
Differential Revision: https://reviews.llvm.org/D101548
Add support for LC_THREAD/LC_UNIXTHREAD
(these load commands can be copied over without any modifications).
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D101384
Add support for LC_THREAD/LC_UNIXTHREAD
(these load commands can be copied over without any modifications).
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D101384
This diff introduces --keep-undefined in llvm-objcopy/llvm-strip for Mach-O
which makes the tools preserve undefined symbols.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D97040
On z/OS, the following error message is not matched correctly in lit tests.
```
EDC5129I No such file or directory.
```
This patch uses a lit config substitution to check for platform specific error messages.
Reviewed By: muiez, jhenderson
Differential Revision: https://reviews.llvm.org/D95246
On z/OS, the following error message is not matched correctly in lit tests. This patch updates the CHECK expression to match successfully.
```
EDC5129I No such file or directory.
```
Reviewed By: muiez
Differential Revision: https://reviews.llvm.org/D94239
This diff fixes missing fields initialization (Size, VMSize).
Previously this resulted in broken binaries when multiple sections
were added in one tool's invocatation.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D90690
Some binaries can contain regular sections with zero offset and zero size.
This diff makes llvm-objcopy's handling of such sections consistent with
cctools's strip (which doesn't modify them),
previously the tool would allocate file space for them.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D90796
This diff refactors error reporting to make it more clear
what arguments were passed to llvm-install-name-tool.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D90080
This diff adds the option -prepend_rpath which inserts an rpath as
the first rpath in the binary.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D89605
LD64 emits string tables which start with a space and a zero byte.
This diff adjusts StringTableBuilder for linked Mach-O binaries to match LD64's behavior.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D89561
Virtual sections do not contribute to the final output size.
This diff fixes the corresponding calculations in the method MachOWriter::totalSize.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D89661
This diff is similar to what D71394 did for `llvm-objdump` -- it avoids
trying to look up a section name for STABS symbols, since some STABS
symbol types (like `N_OSO`) use the `n_sect` field to store other data
instead of a section index.
Differential Revision: https://reviews.llvm.org/D88468
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
This diff fixes --add-section functionality and simplifies the tests organization.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D87497
This patch makes the include_directories, file_names and opcodes fields
of the line table optional. This helps us simplify some tests.
Reviewed By: jhenderson
Differential Revision: https://reviews.llvm.org/D87878
In this diff the tests which verify version printing functionality are refactored.
Since they are not specific to a particular format we move them into tool-version.test
and slightly unify (similarly to tool-name.test and tool-help-message.test).
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D87211
The Length, AbbrOffset and Values fields of the debug_info section are
optional. This patch helps remove them and simplify test cases.
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D86857
This patch adds support for emitting multiple abbrev tables. Currently,
compilation units will always reference the first abbrev table.
Reviewed By: jhenderson, labath
Differential Revision: https://reviews.llvm.org/D86194
This diff merges all options for llvm-install-name-tool under a single
function processLoadCommands. Also adds another test case for -add_rpath
option.
Test plan: make check-all
Reviewed by: jhenderson, alexshap, smeenai, Ktwu
Differential Revision: https://reviews.llvm.org/D82812
This diff merges all options for llvm-install-name-tool under a single
function processLoadCommands. Also adds another test case for -add_rpath
option.
Test plan: make check-all
Reviewed by: jhenderson, alexshap, smeenai, Ktwu
Differential Revision: https://reviews.llvm.org/D82812
Just having --implicit-check-not=/usr breaks when the LLVM checkout path
contains '/usr', since llvm-objdump prints out the path to the input
file in the first line. Tighten the checks by adding the 'name' prefix
that's used when printing load command payloads. An alternative would be
to redirect the input file into llvm-objdump, in which case it prints
out 'a.out' as the file name, but I'm not sure how reliable that
behavior is.
Implement `-change` option for install-name-tool. The behavior exactly
matches that of cctools. Depends on D82410.
Reviewed By: jhenderson, smeenai
Differential Revision: https://reviews.llvm.org/D82613
Implement `-id` option for install-name-tool. Differences from cctool's
behavior:
- Does **NOT** throw an error if multiple -id options are specified.
Instead, picks the last one.
- Throws an error in case empty id is specified.
Reviewed By: jhenderson, smeenai
Differential Revision: https://reviews.llvm.org/D82410
'InitialLength' is replaced with 'Format' (DWARF32 by default) and 'Length' in this patch.
Besides, test cases for DWARFv4 and DWARFv5, DWARF32 and DWARF64 is
added.
Reviewed By: jhenderson
Differential Revision: https://reviews.llvm.org/D82622
This diff addresses the old TODO in MachOObjcopy.cpp and
correctly sets the page size used for alignment of segments.
In particular, now llvm-objcopy's output is consistent
with the input (the alignment of vmsize doesn't change).
Test plan:
1. make check-all
2. verify that a binary copied via llvm-objcopy now correctly works on iOS.
Differential revision: https://reviews.llvm.org/D82503
This diff implements -rpath option for llvm-install-name-tool
which replaces the rpath value in the specified Mach-O binary.
Patch by Sameer Arora!
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D82051
This diff merges help message tests for llvm-objcopy, llvm-strip and
llvm-install-name-tool.
Patch by Sameer Arora!
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D82012
This diff updates the help messages for llvm-objcopy, llvm-strip and
llvm-install-name-tool.
Patch by Sameer Arora!
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D81907
This diff adds support for deleting an rpath from a Mach-O binary.
Patch by Sameer Arora!
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D81527
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
Fix the calculation of the field cmdsize (in the function buildRPathLoadCommand)
to account for the null byte terminator.
Patch by Sameer Arora!
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D81575
Reorder `DumpSection` under `handleArgs` in file `MachOObjcopy.cpp`. The
operation to dump a section is now performed before both add and remove
section operations for MachO file format.
Change for the ELF format at D81097. Together fixes
https://bugs.llvm.org/show_bug.cgi?id=44283
Reviewed By: jhenderson
Differential Revision: https://reviews.llvm.org/D81123
cctools strip has the option "-T" which removes Swift symbols.
This diff implements this option in llvm-strip for MachO.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D80099
N_PEXT bit should not affect whether a symbol is considered to be external or not.
This also fixes the construction of the symbol table since it relies on the correct
ordering of symbols.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D78888
Fix handling of relocations with r_extern == 0.
If r_extern == 0 then r_symbolnum is an index of a section rather than a symbol index.
Patch by Seiya Nuta and Alexander Shaposhnikov.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D78946
Daniel Rodríguez Troitiño