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

nm=${RISCV_NM:-riscv64-unknown-elf-nm}
readelf=${RISCV_READELF:-riscv64-unknown-elf-readelf}
elf=build/task01_scheduler_states/prog.elf

if "$nm" -C -u "$elf" | grep -Eq '__cxa_|_Unwind_|std::|libstdc\+\+'; then
    echo "unexpected hosted C++ runtime dependency in $elf" >&2
    "$nm" -C -u "$elf" >&2
    exit 1
fi

if "$nm" -C --defined-only "$elf" | grep -Eq \
    'vtable for|typeinfo for|typeinfo name for'; then
    echo "unexpected virtual dispatch or RTTI metadata in $elf" >&2
    exit 1
fi

if "$readelf" -S "$elf" | grep -Eq \
    '\.init_array|\.eh_frame|\.gcc_except_table'; then
    echo "unexpected initializer, exception, or unwind section in $elf" >&2
    exit 1
fi

for symbol in g_snapshots g_alternating_tasks g_priority_order
do
    if ! "$nm" --defined-only "$elf" | grep -Fq "$symbol"; then
        echo "missing debugger evidence symbol: $symbol" >&2
        exit 1
    fi
done

echo "PASS ABI: zero-cost Tick/TaskRef wrappers and stable evidence symbols"