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test(ulp): check LP core apps avoid soft-float helpers

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Inspect generated LP core ELF files so accidental floating-point helper linkage is caught in CI.
This commit is contained in:
Marius Vikhammer
2026-06-18 12:01:41 +08:00
parent a6c7484b53
commit e9d89e85cb
2 changed files with 92 additions and 0 deletions
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60
components/ulp/test_apps/lp_core/lp_core_basic_tests/check_lp_core_no_soft_float.py Normal file
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@@ -0,0 +1,60 @@
#!/usr/bin/env python3
# SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: CC0-1.0
import argparse
from pathlib import Path
SOFT_FLOAT_SYMBOLS = {
'__adddf3',
'__addsf3',
'__divdf3',
'__divsf3',
'__eqdf2',
'__eqsf2',
'__extendsfdf2',
'__fixdfsi',
'__fixsfsi',
'__fixunsdfsi',
'__fixunssfsi',
'__floatunsidf',
'__floatunsisf',
'__floatsidf',
'__floatsisf',
'__gedf2',
'__gesf2',
'__gtdf2',
'__gtsf2',
'__ledf2',
'__lesf2',
'__ltdf2',
'__ltsf2',
'__muldf3',
'__mulsf3',
'__nedf2',
'__nesf2',
'__subdf3',
'__subsf3',
'__truncdfsf2',
}
def main() -> None:
parser = argparse.ArgumentParser(description='Check that an LP core app does not link soft-float helpers')
parser.add_argument('symbol_file', type=Path)
args = parser.parse_args()
linked_symbols = set()
for line in args.symbol_file.read_text().splitlines():
fields = line.split()
if fields:
linked_symbols.add(fields[-1])
linked_soft_float = sorted(linked_symbols & SOFT_FLOAT_SYMBOLS)
if linked_soft_float:
symbols = ', '.join(linked_soft_float)
raise SystemExit(f'{args.symbol_file}: LP core app links soft-float helper symbols: {symbols}')
if __name__ == '__main__':
main()

32
components/ulp/test_apps/lp_core/lp_core_basic_tests/main/CMakeLists.txt
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@@ -68,19 +68,43 @@ idf_component_register(SRCS ${app_sources}
set(lp_core_exp_dep_srcs ${app_sources})
function(lp_core_test_app_checks)
idf_build_get_property(python PYTHON)
foreach(app_name ${ARGN})
set(symbol_file ${CMAKE_CURRENT_BINARY_DIR}/${app_name}/${app_name}.sym)
set(check_output ${CMAKE_CURRENT_BINARY_DIR}/${app_name}/${app_name}.no_soft_float)
add_custom_command(OUTPUT ${check_output}
COMMAND ${python} ${CMAKE_CURRENT_LIST_DIR}/../check_lp_core_no_soft_float.py ${symbol_file}
COMMAND ${CMAKE_COMMAND} -E touch ${check_output}
DEPENDS ${symbol_file} ${CMAKE_CURRENT_LIST_DIR}/../check_lp_core_no_soft_float.py
VERBATIM)
add_custom_target(${app_name}_no_soft_float DEPENDS ${check_output})
add_dependencies(${COMPONENT_LIB} ${app_name}_no_soft_float)
endforeach()
endfunction()
set(lp_core_test_apps "")
ulp_embed_binary(lp_core_test_app "${lp_core_sources}" "${lp_core_exp_dep_srcs}")
list(APPEND lp_core_test_apps lp_core_test_app)
ulp_embed_binary(lp_core_test_app_counter "${lp_core_sources_counter}" "${lp_core_exp_dep_srcs}")
list(APPEND lp_core_test_apps lp_core_test_app_counter)
ulp_embed_binary(lp_core_test_app_wake_stub "${lp_core_sources_wake_stub}" "${lp_core_exp_dep_srcs}")
list(APPEND lp_core_test_apps lp_core_test_app_wake_stub)
ulp_embed_binary(lp_core_test_app_isr "lp_core/test_main_isr.c" "${lp_core_exp_dep_srcs}")
list(APPEND lp_core_test_apps lp_core_test_app_isr)
if(CONFIG_SOC_RTC_TIMER_V2_SUPPORTED)
ulp_embed_binary(lp_core_test_app_set_timer_wakeup "${lp_core_sources_set_timer_wakeup}" "${lp_core_exp_dep_srcs}")
list(APPEND lp_core_test_apps lp_core_test_app_set_timer_wakeup)
endif()
ulp_embed_binary(lp_core_test_app_gpio "${lp_core_sources_gpio}" "${lp_core_exp_dep_srcs}")
if(CONFIG_SOC_LP_I2C_SUPPORTED)
ulp_embed_binary(lp_core_test_app_i2c "${lp_core_sources_i2c}" "${lp_core_exp_dep_srcs}")
list(APPEND lp_core_test_apps lp_core_test_app_i2c)
endif()
if(CONFIG_SOC_ULP_LP_UART_SUPPORTED)
@@ -90,7 +114,9 @@ endif()
if(CONFIG_SOC_LP_SPI_SUPPORTED)
ulp_embed_binary(lp_core_test_app_spi_master "${lp_core_sources_spi_master}" "${lp_core_exp_dep_srcs}")
list(APPEND lp_core_test_apps lp_core_test_app_spi_master)
ulp_embed_binary(lp_core_test_app_spi_slave "${lp_core_sources_spi_slave}" "${lp_core_exp_dep_srcs}")
list(APPEND lp_core_test_apps lp_core_test_app_spi_slave)
endif()
if(CONFIG_SOC_LP_ADC_SUPPORTED)
@@ -99,9 +125,15 @@ endif()
if(CONFIG_SOC_LP_VAD_SUPPORTED)
ulp_embed_binary(lp_core_test_app_vad "${lp_core_sources_vad}" "${lp_core_exp_dep_srcs}")
list(APPEND lp_core_test_apps lp_core_test_app_vad)
endif()
ulp_embed_binary(lp_core_test_app_prefix1 "lp_core/test_main_prefix1.c" "${lp_core_exp_dep_srcs}" PREFIX "ulp1_")
list(APPEND lp_core_test_apps lp_core_test_app_prefix1)
ulp_embed_binary(lp_core_test_app_prefix2 "lp_core/test_main_prefix2.c" "${lp_core_exp_dep_srcs}" PREFIX "ulp2_")
list(APPEND lp_core_test_apps lp_core_test_app_prefix2)
ulp_embed_binary(lp_core_test_app_exception "lp_core/test_main_exception.c" "${lp_core_exp_dep_srcs}")
list(APPEND lp_core_test_apps lp_core_test_app_exception)
lp_core_test_app_checks(${lp_core_test_apps})