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6 Commits

Author SHA1 Message Date
quic-akaryaki
4070dffd34
[llvm-objcopy] Add --gap-fill and --pad-to options (#65815) 
`--gap-fill <value>` fills the gaps between sections with a specified
8-bit value, instead of zero.
`--pad-to <address>` pads the output binary up to the specified load
address, using the 8-bit value from `--gap-fill` or zero.

These options are only supported for ELF input and binary output.
 2023-12-14 16:28:34 -06:00
Dan Zimmerman
0807846a9e
[objcopy] Implement --weaken, --weaken-symbol(s) flags for Mach-O Object Files (#70560) 
This PR implements --weaken, --weaken-symbol(s)  flags in llvm-objcopy for Mach-O.

Test plan: ninja check-all
 2023-11-06 01:20:52 -08:00
Saleem Abdulrasool
00e6d0e9ac ObjCopy: support --dump-section on COFF 
Add support for --dump-section on COFF files. This is helpful for
extracting specific content from an object file on Windows.

Differential Revision: https://reviews.llvm.org/D150305
Reviewed By: @alexander-shaposhnikov, @jhenderson, @hjyamauchi
 2023-05-12 14:42:06 -07:00
Fangrui Song
b28412d539 [llvm-objcopy][ELF] Add --set-section-type 
The request is mentioned on D129053. I feel that having this functionality is
mildly useful (not strong).

* Rename .ctors to .init_array and change sh_type to SHT_INIT_ARRAY (GNU objcopy
  detects the special name but we don't).
* Craft tests for a new SHT_LLVM_* extension

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D129337
 2022-07-13 10:04:21 -07:00
esmeyi
61835d19a8 [llvm-objcopy] Initial XCOFF32 support. 
Summary: This is an initial implementation of lvm-objcopy for XCOFF32.
Currently only supports simple copying, op-passthrough to follow.

Reviewed By: jhenderson, shchenz

Differential Revision: https://reviews.llvm.org/D97656
 2022-02-28 04:59:46 -05:00
Alexey Lapshin
f75da0c8e6 [llvm-objcopy][NFC] Move core implementation of llvm-objcopy into separate library. 
This patch moves core implementation of llvm-objcopy into Object library
(http://lists.llvm.org/pipermail/llvm-dev/2020-September/145075.html).
The functionality for parsing input options is left inside tools/llvm-objcopy.
The interface of ObjCopy library:

ObjCopy/ELF/ELFObjcopy.h

```
Error executeObjcopyOnIHex(const CopyConfig &Config, MemoryBuffer &In,
                           Buffer &Out);
Error executeObjcopyOnRawBinary(const CopyConfig &Config, MemoryBuffer &In,
                                Buffer &Out);
Error executeObjcopyOnBinary(const CopyConfig &Config,
                             object::ELFObjectFileBase &In, Buffer &Out);

```
ObjCopy/COFF/COFFObjcopy.h

```
Error executeObjcopyOnBinary(const CopyConfig &Config,
                             object::COFFObjectFile &In, Buffer &Out);

```
ObjCopy/MachO/MachOObjcopy.h

```
Error executeObjcopyOnBinary(const CopyConfig &Config,
                             object::MachOObjectFile &In, Buffer &Out);

```
ObjCopy/wasm/WasmObjcopy.h

```
Error executeObjcopyOnBinary(const CopyConfig &Config,
                             object::WasmObjectFile &In, Buffer &Out);

```

Differential Revision: https://reviews.llvm.org/D88827
 2022-02-17 13:11:42 +03:00