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doc: Improve build addendum.
This commit is contained in:
Jason Volk
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doc/BUILD.md
88
doc/BUILD.md
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@ -1,15 +1,6 @@
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## BUILD
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## BUILD (standalone)
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*Most users will need to follow the standalone build instructions in the next section.*
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```
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./autogen.sh
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./configure
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make
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sudo make install
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```
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### BUILD (standalone)
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##### Compatibility Primer
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This section is intended to allow building with dependencies that have not
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made their way to mainstream systems. Important notes that may affect you:
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@ -29,50 +20,55 @@ with `--with-included-rocksdb` as instructed below.~~
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configure with `--with-included-rocksdb` until regressions in your RocksDB
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package have been fixed.
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##### Installation Primer
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A general overview of what construct will build and install is given here. At
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this time it is suggested to supply `./configure` with a `--prefix` path,
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especially for development. Example `--prefix=~/.local/`.
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- Binary executable `$prefix/bin/construct`
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- Shared library `$prefix/lib/libircd.so`
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- Shared library modules `$prefix/lib/modules/construct/*.so`
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- Header files `$prefix/include/ircd/*`
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- Read-only shared assets `$prefix/share/construct/*`
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- Database directory may be established at `$prefix/var/db/construct/`
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```
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Do not set your `--prefix` path to a directory inside your git repository or
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an invocation of `git clean` will erase your database in $prefix/var/db/.
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```
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#### STANDALONE BUILD PROCEDURE
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```
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./autogen.sh
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mkdir build
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```
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> The install directory may be this or another place of your choosing. If you decide
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elsewhere, make sure to change the `--prefix` in the `./configure` statement below.
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```
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./configure --prefix=$PWD/build --with-included-boost --with-included-rocksdb
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```
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> The `--with-included-*` will fetch, configure **and build** the dependencies included
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as submodules.
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```
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make install
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```
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## Installation Addendum
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> The `--with-included-*` will fetch, configure **and build** the dependencies included
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as submodules. Please read the compatibility primer first to understand which options
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you need or don't need on your system.
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#### Additional build options
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Development builds should follow the same instructions as the standalone
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section above while taking note of the following `./configure` options:
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### Additional build options
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##### Debug mode
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#### Debug mode
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```
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--enable-debug
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```
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Full debug mode. Includes additional code within `#ifdef RB_DEBUG` sections.
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Optimization level is `-Og`, which is still valgrind-worthy. Debugger support
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is `-ggdb`. Log level is `DEBUG` (maximum). Assertions are enabled.
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is `-ggdb`. Log level is `DEBUG` (maximum). Assertions are enabled. No
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sanitizer instrumentation is generated by default in this mode.
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##### Release modes (for distribution packages)
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#### Generic mode binary (for distribution packages)
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Options in this section may help distribution maintainers create packages.
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Users building for themselves (whether standalone or fully installed) probably
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don't need anything here.
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Construct developers have set the default compilation to generate native
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hardware operations which may only be supported on very specific targets. For
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a generic mode binary, package maintainers may require this option.
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```
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--enable-generic
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@ -80,7 +76,7 @@ don't need anything here.
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Sets `-mtune=generic` as `native` is otherwise the default.
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##### Compact mode
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#### Compact mode (experimental)
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```
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--enable-compact
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@ -93,7 +89,7 @@ _This feature is experimental. It may not build or execute on all platforms
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reliably. Please report bugs._
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##### Manually enable assertions
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#### Manually enable assertions
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```
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--enable-assert
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@ -102,7 +98,7 @@ Implied by `--enable-debug`. This is useful to specifically enable `assert()`
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statements when `--enable-debug` is not used.
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##### Manually enable optimization
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#### Manually enable optimization
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```
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--enable-optimize
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@ -111,7 +107,7 @@ This manually applies full release-mode optimizations even when using
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`--enable-debug`. Implied when not in debug mode.
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##### Disable third-party dynamic allocator libraries
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#### Disable third-party dynamic allocator libraries
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```
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--disable-malloc-libs
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@ -122,7 +118,21 @@ may enable these to be configured by default, if detected. To always prevent
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any alternative to the default standard library allocator specify this option.
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##### Logging level
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#### Enable third-party dynamic allocator libraries
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Currently:
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```
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--enable-jemalloc
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```
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`./configure` will detect alternative `malloc()` implementations found in
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libraries installed on the system (jemalloc/tcmalloc/etc). Construct developers
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may not enable these to be configured by default, falling back on the default
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allocator. To always use one of the alternative allocators use one option here.
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#### Logging level
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```
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--with-log-level=
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