pw_emu: Add support for substitutions in config entries

For now only $pw_env{} is supported. Note that the pw_env_setup also
performs this substitution, but this does not work when using
pw_emu configuration fragments.

Ideally this should be done in a generic fashion for all Pigweed
modules (b/309161337) but this is out of scope for this CL which aims
at allowing downstream projects to perform substitution for emulation
target fragments (e.g. for using a project specific qemu binary
relative to the project root).

This CL also adds unit tests for pw_emu.core.Config.

Bug: 308793747
Change-Id: I7f9208276b3981754316d674e0b25721c9beb165
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/179150
Commit-Queue: Octavian Purdila <tavip@google.com>
Reviewed-by: Jonathon Reinhart <jrreinhart@google.com>
3 files changed
tree: 7a131f0d9083fded507874fd4e6101723e398abd
  1. .allstar/
  2. .vscode/
  3. build_overrides/
  4. docker/
  5. docs/
  6. kudzu/
  7. pw_alignment/
  8. pw_allocator/
  9. pw_analog/
  10. pw_android_toolchain/
  11. pw_arduino_build/
  12. pw_assert/
  13. pw_assert_basic/
  14. pw_assert_log/
  15. pw_assert_tokenized/
  16. pw_assert_zephyr/
  17. pw_async/
  18. pw_async_basic/
  19. pw_base64/
  20. pw_bloat/
  21. pw_blob_store/
  22. pw_bluetooth/
  23. pw_bluetooth_hci/
  24. pw_bluetooth_profiles/
  25. pw_boot/
  26. pw_boot_cortex_m/
  27. pw_build/
  28. pw_build_info/
  29. pw_build_mcuxpresso/
  30. pw_bytes/
  31. pw_checksum/
  32. pw_chre/
  33. pw_chrono/
  34. pw_chrono_embos/
  35. pw_chrono_freertos/
  36. pw_chrono_rp2040/
  37. pw_chrono_stl/
  38. pw_chrono_threadx/
  39. pw_chrono_zephyr/
  40. pw_cli/
  41. pw_compilation_testing/
  42. pw_console/
  43. pw_containers/
  44. pw_cpu_exception/
  45. pw_cpu_exception_cortex_m/
  46. pw_crypto/
  47. pw_digital_io/
  48. pw_digital_io_mcuxpresso/
  49. pw_digital_io_rp2040/
  50. pw_docgen/
  51. pw_doctor/
  52. pw_emu/
  53. pw_env_setup/
  54. pw_file/
  55. pw_format/
  56. pw_function/
  57. pw_fuzzer/
  58. pw_hdlc/
  59. pw_hex_dump/
  60. pw_i2c/
  61. pw_i2c_linux/
  62. pw_i2c_mcuxpresso/
  63. pw_ide/
  64. pw_interrupt/
  65. pw_interrupt_cortex_m/
  66. pw_interrupt_xtensa/
  67. pw_interrupt_zephyr/
  68. pw_intrusive_ptr/
  69. pw_kvs/
  70. pw_libc/
  71. pw_libcxx/
  72. pw_log/
  73. pw_log_android/
  74. pw_log_basic/
  75. pw_log_null/
  76. pw_log_rpc/
  77. pw_log_string/
  78. pw_log_tokenized/
  79. pw_log_zephyr/
  80. pw_malloc/
  81. pw_malloc_freelist/
  82. pw_metric/
  83. pw_minimal_cpp_stdlib/
  84. pw_module/
  85. pw_multibuf/
  86. pw_multisink/
  87. pw_package/
  88. pw_perf_test/
  89. pw_persistent_ram/
  90. pw_polyfill/
  91. pw_preprocessor/
  92. pw_presubmit/
  93. pw_protobuf/
  94. pw_protobuf_compiler/
  95. pw_random/
  96. pw_result/
  97. pw_ring_buffer/
  98. pw_router/
  99. pw_rpc/
  100. pw_rpc_transport/
  101. pw_rust/
  102. pw_snapshot/
  103. pw_software_update/
  104. pw_span/
  105. pw_spi/
  106. pw_spi_mcuxpresso/
  107. pw_status/
  108. pw_stm32cube_build/
  109. pw_stream/
  110. pw_stream_shmem_mcuxpresso/
  111. pw_stream_uart_linux/
  112. pw_stream_uart_mcuxpresso/
  113. pw_string/
  114. pw_symbolizer/
  115. pw_sync/
  116. pw_sync_baremetal/
  117. pw_sync_embos/
  118. pw_sync_freertos/
  119. pw_sync_stl/
  120. pw_sync_threadx/
  121. pw_sync_zephyr/
  122. pw_sys_io/
  123. pw_sys_io_ambiq_sdk/
  124. pw_sys_io_arduino/
  125. pw_sys_io_baremetal_lm3s6965evb/
  126. pw_sys_io_baremetal_stm32f429/
  127. pw_sys_io_emcraft_sf2/
  128. pw_sys_io_mcuxpresso/
  129. pw_sys_io_rp2040/
  130. pw_sys_io_stdio/
  131. pw_sys_io_stm32cube/
  132. pw_sys_io_zephyr/
  133. pw_system/
  134. pw_target_runner/
  135. pw_thread/
  136. pw_thread_embos/
  137. pw_thread_freertos/
  138. pw_thread_stl/
  139. pw_thread_threadx/
  140. pw_thread_zephyr/
  141. pw_tls_client/
  142. pw_tls_client_boringssl/
  143. pw_tls_client_mbedtls/
  144. pw_tokenizer/
  145. pw_tool/
  146. pw_toolchain/
  147. pw_toolchain_bazel/
  148. pw_trace/
  149. pw_trace_tokenized/
  150. pw_transfer/
  151. pw_unit_test/
  152. pw_unit_test_zephyr/
  153. pw_varint/
  154. pw_watch/
  155. pw_web/
  156. pw_work_queue/
  157. seed/
  158. targets/
  159. third_party/
  160. ts/
  161. zephyr/
  162. .bazelignore
  163. .bazelrc
  164. .black.toml
  165. .clang-format
  166. .clang-tidy
  167. .eslintrc.cjs
  168. .git-blame-ignore-revs
  169. .gitattributes
  170. .gitignore
  171. .gn
  172. .mypy.ini
  173. .prettierignore
  174. .prettierrc.cjs
  175. .pw_ide.yaml
  176. .pylintrc
  177. activate.bat
  178. Android.bp
  179. AUTHORS
  180. bootstrap.bat
  181. bootstrap.sh
  182. BUILD.bazel
  183. BUILD.gn
  184. BUILDCONFIG.gn
  185. CMakeLists.txt
  186. jest.config.ts
  187. Kconfig.zephyr
  188. LICENSE
  189. modules.gni
  190. OWNERS
  191. package-lock.json
  192. package.json
  193. pigweed.json
  194. PIGWEED_MODULES
  195. README.md
  196. rollup.config.js
  197. tsconfig.json
  198. WORKSPACE
README.md

Pigweed

Pigweed is an open source collection of embedded-targeted libraries–or as we like to call them, modules. These modules are building blocks and infrastructure that enable faster and more reliable development on small-footprint MMU-less 32-bit microcontrollers like the STMicroelectronics STM32L452 or the Nordic nRF52832.

For more information please see our website: https://pigweed.dev/.

Links