feat(esp_system): switch to standard __libc_init_array initialization

Initially, ESP-IDF used the do_global_ctors() function to run global
constructors. This was done to accommodate Xtensa targets that emit
.ctors.* sections, which are ordered in descending order.

For RISC-V, compilation used .init_array.* sections, which are designed
to have ascending order. Priority constructors in .init_array.* sections
were correctly processed in ascending order. However, non-priority
.init_array section was processed in descending order, as it was done
for Xtensa .ctors.

Starting with ESP-IDF v6.0, the implementation switched to the standard
LibC behavior (__libc_init_array()), which processes both priority and
non-priority constructors in ascending order.

To achieve this, a breaking changes were introduced:
  - Xtensa .ctors.* priority entries converted to .init_array.* format
    (ascending), to be passed to __libc_init_array().
  - Processing order of non-priority .init_array and .ctors sections was
    changed from descending to ascending.

Also, this change introduces .preinit_array for linking. This may be
needed for some C++ or sanitizer features.

Related to https://github.com/espressif/esp-idf/issues/15529
This commit is contained in:
Alexey Lapshin
2023-05-08 18:11:32 +08:00
committed by BOT
parent 819970f439
commit 019dc93ae0
25 changed files with 228 additions and 199 deletions

View File

@@ -11,10 +11,10 @@ from pytest_embedded_idf.utils import idf_parametrize
@idf_parametrize('target', ['esp32', 'esp32c3'], indirect=['target'])
def test_plugins(dut: Dut) -> None:
log_text = textwrap.dedent(r"""
Nihao plugin performing self-registration...
Successfully registered plugin 'Nihao'
Hello plugin performing self-registration...
Successfully registered plugin 'Hello'
Nihao plugin performing self-registration...
Successfully registered plugin 'Nihao'
main_task: Calling app_main()
List of plugins:
- Plugin 'Hello'