#!/usr/bin/env sh
set -eu

nm=$(printenv RISCV_NM || true)
readelf=$(printenv RISCV_READELF || true)
test -n "$nm" || nm=riscv64-unknown-elf-nm
test -n "$readelf" || readelf=riscv64-unknown-elf-readelf
elf=build/task01_delay_state/prog.elf

if "$nm" --defined-only "$elf" | awk '{print $3}' | grep -Eq '^_Z|^__cxa_|^_Unwind_'; then
  echo "unexpected C++ or unwind symbol in FC04" >&2
  exit 1
fi
if "$readelf" -S "$elf" | grep -Eq '\.init_array|\.eh_frame|\.gcc_except_table'; then
  echo "unexpected C++ initialization or unwind section in FC04" >&2
  exit 1
fi
for symbol in periodic_task_entry suspend_task_entry observer_task_entry \
  fc04_checkpoint fc04_checkpoint_committed xTaskDelayUntil vTaskSuspend \
  vTaskResume vTaskDelete eTaskGetState; do
  "$nm" --defined-only "$elf" | grep -Eq "[[:space:]]$symbol$" || {
    echo "required symbol is missing: $symbol" >&2
    exit 1
  }
done
echo "PASS ABI: FC04 is freestanding C11 with delay/state APIs"