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# arch-armv7
This is the ARMv7 plugin that ships with Binary Ninja.
## Contributing
If you're interested in contributing when you submit your first PR, you'll receive a notice from [CLA Assistant](https://cla-assistant.io/) that allows you to sign our [Contribution License Agreement](https://binary.ninja/cla.pdf) online.
## Building
Building the architecture plugin requires `cmake` 3.9 or above
Run `cmake`. This can be done either from a separate build directory or from the source
directory. Once that is complete, run `make` in the build directory to compile the plugin.
The plugin can be found in the root of the build directory as `libarch_armv7.so`,
`libarch_armv7.dylib` or `arch_armv7.dll` depending on your platform.
To install the plugin, first launch Binary Ninja and uncheck the "ARMv7 architecture plugin"
option in the "Core Plugins" section. This will cause Binary Ninja to stop loading the
bundled plugin so that its replacement can be loaded. Once this is complete, you can copy
the plugin into the user plugins directory (you can locate this by using the "Open Plugin Folder"
option in the Binary Ninja UI).
**Do not replace the architecture plugin in the Binary Ninja install directory. This will
be overwritten every time there is a Binary Ninja update. Use the above process to ensure that
updates do not automatically uninstall your custom build.**
## Build Example
### cmake, make
```
cd binaryninja-api/arch/armv7
cmake -DBN_INSTALL_DIR=/Applications/Binary\ Ninja\ DEV.app/ .
make
```
## Build Troubleshooting
### example
CMake Error at /Users/andrewl/repos/vector35/binaryninja-api/CMakeLists.txt:53 (message):
Binary Ninja Core Not Found
resolution:
ensure BN_INSTALL_DIR is supplied at command line invocation of cmake
ensure some bad directory is not cached in CMakeCache.txt
### example
cmake seems to ignore your setting of BN_INSTALL_DIR and other cmake variables
resolution:
rm CMakeCache.txt
### example
undefined symbols at link time, like:
Undefined symbols for architecture x86_64:
"_BNClearUserVariableValue", referenced from:
BinaryNinja::Function::ClearUserVariableValue(BinaryNinja::Variable const&, unsigned long long) in libbinaryninjaapi.a(function.cpp.o)
resolution:
ensure that your api repo is on the same channel and at the same commit as the libbinaryninjacore you're linking against
eg: binaryninja is on dev update channel and is up-to-date and binaryninja-api repo is on branch dev with latest pulled
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