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pigweed / pigweed / pigweed / 855f2633b08fb3e63d4e64ce2f46564994bc6f06
commit855f2633b08fb3e63d4e64ce2f46564994bc6f06[log] [tgz]
authorTom Craig <tommycraig@gmail.com>Tue Aug 16 19:18:16 2022 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Aug 16 19:18:16 2022 +0000
tree4e6b9076b2d0a1103d2b495cf44af57a36eeeb66
parent15ed2fce7c41f57f6b6acc35a6d771c81ef60b13 [diff]
pw_boot_cortex_m: Add lld unused_space workaround

The bloaty unused_space symbols in basic_cortex_m.ld are not compatible
with lld (llvm linker) which is an obstacle to easily building with
clang-based toolchains (including //pw_toolchain/arm_clang). This
change adds a workaround to allow disabling those symbols when
PW_BOOT_WORKAROUND_DISABLE_UNUSED_SPACE evaluates to True.

Hopefully this workaround will be short-lived and deprecated by a fix
for unused_space in lld.

Change-Id: Ia82302b2587508c77d91b120687d46a9b9e3a5f2
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/106910
Reviewed-by: Armando Montanez <amontanez@google.com>
Pigweed-Auto-Submit: Armando Montanez <amontanez@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
2 files changed
tree: 4e6b9076b2d0a1103d2b495cf44af57a36eeeb66
  1. build_overrides/
  2. docker/
  3. docs/
  4. pw_allocator/
  5. pw_analog/
  6. pw_android_toolchain/
  7. pw_arduino_build/
  8. pw_assert/
  9. pw_assert_basic/
  10. pw_assert_log/
  11. pw_assert_tokenized/
  12. pw_assert_zephyr/
  13. pw_base64/
  14. pw_bloat/
  15. pw_blob_store/
  16. pw_bluetooth/
  17. pw_bluetooth_hci/
  18. pw_boot/
  19. pw_boot_cortex_m/
  20. pw_build/
  21. pw_build_info/
  22. pw_build_mcuxpresso/
  23. pw_bytes/
  24. pw_checksum/
  25. pw_chrono/
  26. pw_chrono_embos/
  27. pw_chrono_freertos/
  28. pw_chrono_stl/
  29. pw_chrono_threadx/
  30. pw_chrono_zephyr/
  31. pw_cli/
  32. pw_compilation_testing/
  33. pw_console/
  34. pw_containers/
  35. pw_cpu_exception/
  36. pw_cpu_exception_cortex_m/
  37. pw_crypto/
  38. pw_digital_io/
  39. pw_docgen/
  40. pw_doctor/
  41. pw_env_setup/
  42. pw_file/
  43. pw_function/
  44. pw_fuzzer/
  45. pw_hdlc/
  46. pw_hex_dump/
  47. pw_i2c/
  48. pw_i2c_mcuxpresso/
  49. pw_interrupt/
  50. pw_interrupt_cortex_m/
  51. pw_interrupt_zephyr/
  52. pw_kvs/
  53. pw_libc/
  54. pw_log/
  55. pw_log_android/
  56. pw_log_basic/
  57. pw_log_null/
  58. pw_log_rpc/
  59. pw_log_string/
  60. pw_log_tokenized/
  61. pw_log_zephyr/
  62. pw_malloc/
  63. pw_malloc_freelist/
  64. pw_metric/
  65. pw_minimal_cpp_stdlib/
  66. pw_module/
  67. pw_multisink/
  68. pw_package/
  69. pw_persistent_ram/
  70. pw_polyfill/
  71. pw_preprocessor/
  72. pw_presubmit/
  73. pw_protobuf/
  74. pw_protobuf_compiler/
  75. pw_random/
  76. pw_result/
  77. pw_ring_buffer/
  78. pw_router/
  79. pw_rpc/
  80. pw_rust/
  81. pw_snapshot/
  82. pw_software_update/
  83. pw_span/
  84. pw_spi/
  85. pw_status/
  86. pw_stm32cube_build/
  87. pw_stream/
  88. pw_string/
  89. pw_symbolizer/
  90. pw_sync/
  91. pw_sync_baremetal/
  92. pw_sync_embos/
  93. pw_sync_freertos/
  94. pw_sync_stl/
  95. pw_sync_threadx/
  96. pw_sync_zephyr/
  97. pw_sys_io/
  98. pw_sys_io_arduino/
  99. pw_sys_io_baremetal_lm3s6965evb/
  100. pw_sys_io_baremetal_stm32f429/
  101. pw_sys_io_emcraft_sf2/
  102. pw_sys_io_mcuxpresso/
  103. pw_sys_io_stdio/
  104. pw_sys_io_stm32cube/
  105. pw_sys_io_zephyr/
  106. pw_system/
  107. pw_target_runner/
  108. pw_thread/
  109. pw_thread_embos/
  110. pw_thread_freertos/
  111. pw_thread_stl/
  112. pw_thread_threadx/
  113. pw_tls_client/
  114. pw_tls_client_boringssl/
  115. pw_tls_client_mbedtls/
  116. pw_tokenizer/
  117. pw_tool/
  118. pw_toolchain/
  119. pw_trace/
  120. pw_trace_tokenized/
  121. pw_transfer/
  122. pw_unit_test/
  123. pw_varint/
  124. pw_watch/
  125. pw_web/
  126. pw_work_queue/
  127. targets/
  128. third_party/
  129. ts/
  130. zephyr/
  131. .dockerignore ⇨ .gitignore
  132. activate.sh ⇨ bootstrap.sh
  133. .bazelignore
  134. .bazelrc
  135. .clang-format
  136. .clang-tidy
  137. .eslintrc.json
  138. .gitattributes
  139. .gitignore
  140. .gn
  141. .prettierrc.js
  142. .pylintrc
  143. activate.bat
  144. Android.bp
  145. AUTHORS
  146. bootstrap.bat
  147. bootstrap.sh
  148. BUILD.bazel
  149. BUILD.gn
  150. BUILDCONFIG.gn
  151. CMakeLists.txt
  152. jest.config.ts
  153. Kconfig.zephyr
  154. LICENSE
  155. modules.gni
  156. OWNERS
  157. package-lock.json
  158. package.json
  159. PIGWEED_MODULES
  160. PW_PLUGINS
  161. README.md
  162. rollup.config.js
  163. tsconfig.json
  164. 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