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| # Shared libraries | |||
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| Phoenix-RTOS supports building shared libs and dynamically-linked executables. Shared libs are support on all MMU platforms but aarch64 and on NOMMU arm. On NOMMU the FDPIC format is used. | |||
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| To compile a library as a shared include of `include $(static-lib.mk)` to `include $(shared-lib.mk)`. | ||
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| In cases of simple libraries this might be enough, however building a shared library is more similar to building a binary than a static library, thus more compilation options are available. Please refer for full list to `phoenix-rtos-build/makes/shared-lib.mk`. Most importantly libraries on which the shared library depends can be specified and few shared library specific options are available: |
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| ### Building dynamically linked executable | ||
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| In most cases compilation of a dynamically-linked executable is as easy as changing `include $(binary.mk)` to `include $(binary-dyn.mk)`. |
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| `binary-dyn.mk` additionally allows to specify: | ||
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| - **DEP_LIBS_SHARED** - shared libraries from current repo needed to be compiled/installed before this component (shortcut for putting something in LIBS and DEPS) |
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| ### ldconfig | ||
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| To create correct symlinks for shared libraries `ldconfig` needs to run at system boot. So, it has to be added to startup script on targets using shared libs. |
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JIRA: RTOS-664
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JIRA: RTOS-664