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| author | Samuel Huang <huangs@chromium.org> | 2021-08-05 16:46:38 +0000 |
|---|---|---|
| committer | Copybara-Service <copybara-worker@google.com> | 2021-08-05 10:05:02 -0700 |
| commit | fa10b05c4854c6d8a603ee47c2a213cbc23f8646 (patch) | |
| tree | 94ad9d794dedc26bd0e0be4b18511d45026a0b98 /element_detection.cc | |
| parent | 3e1f64d1395c53a730475d930b663d5f6006099e (diff) | |
| download | zucchini-fa10b05c4854c6d8a603ee47c2a213cbc23f8646.tar.gz | |
[Zucchini] Add ARM support for ELF files.
This CL enables ARM-ELF (AArch32 and AArch64) support in Zucchini.
* Define ARM {AArch32, AArch64}ReferenceType.
* Add Rel32Finder{Arm, AArch32, AArch64} (with tests) to use
previously-added ARM disassembly code to extract rel32 references.
* Add DisassemblerElf{Arm, AArch32, AArch64} to parse ARM ELF files and
create reference readers / writers, and reference groups.
* For AArch32: Add heuristic detection of ARM vs. Thumb2 mode.
* Add IsTargetOffsetInElfSectionList() (with tests) to help ARM reject
false positive references.
* Add ReferenceBytesMixerElfArm to remove redundant reference target
information from bytewise correction data.
Bug: 918867
Change-Id: I1e6d3d8b8d174c85a3d44ca6d642b7ff0bd6a6a6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2922822
Commit-Queue: Samuel Huang <huangs@chromium.org>
Reviewed-by: Etienne Pierre-Doray <etiennep@chromium.org>
Cr-Commit-Position: refs/heads/master@{#908913}
NOKEYCHECK=True
GitOrigin-RevId: 85cc8a596f183487b395a59e80b2f654f241ab2c
Diffstat (limited to 'element_detection.cc')
| -rw-r--r-- | element_detection.cc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/element_detection.cc b/element_detection.cc index 8682c78..356c0d7 100644 --- a/element_detection.cc +++ b/element_detection.cc @@ -65,6 +65,18 @@ std::unique_ptr<Disassembler> MakeDisassemblerWithoutFallback( if (disasm && disasm->size() >= kMinProgramSize) return disasm; } + + if (DisassemblerElfAArch32::QuickDetect(image)) { + auto disasm = Disassembler::Make<DisassemblerElfAArch32>(image); + if (disasm && disasm->size() >= kMinProgramSize) + return disasm; + } + + if (DisassemblerElfAArch64::QuickDetect(image)) { + auto disasm = Disassembler::Make<DisassemblerElfAArch64>(image); + if (disasm && disasm->size() >= kMinProgramSize) + return disasm; + } #endif // BUILDFLAG(ENABLE_ELF) #if BUILDFLAG(ENABLE_DEX) @@ -101,6 +113,10 @@ std::unique_ptr<Disassembler> MakeDisassemblerOfType(ConstBufferView image, return Disassembler::Make<DisassemblerElfX86>(image); case kExeTypeElfX64: return Disassembler::Make<DisassemblerElfX64>(image); + case kExeTypeElfAArch32: + return Disassembler::Make<DisassemblerElfAArch32>(image); + case kExeTypeElfAArch64: + return Disassembler::Make<DisassemblerElfAArch64>(image); #endif // BUILDFLAG(ENABLE_ELF) #if BUILDFLAG(ENABLE_DEX) case kExeTypeDex: |