feat: add lab-rv32i-c-smalloc-sbrk-libc card
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user
Executable
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#!/usr/bin/env bash
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set -euo pipefail
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root="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
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task01_map="$root/build/task01_libc_without_heap/prog.map"
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task05_map="$root/build/task05_picolibc_malloc/prog.map"
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grep -q 'libc.a(strlen.c.o)' "$task01_map"
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if grep -Eq 'libc_stdlib_malloc.c.o|libc_stdlib_free.c.o|libc_misc_picosbrk.c.o' "$task01_map"; then
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echo 'FAIL Task01: heap-related archive member entered the image' >&2
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exit 1
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fi
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for member in libc_stdlib_malloc.c.o libc_stdlib_free.c.o libc_misc_picosbrk.c.o; do
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grep -q "$member" "$task05_map"
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done
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printf '%s\n' \
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'PASS Task01 map: strlen.c.o present, malloc/free/picosbrk absent' \
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'PASS Task05 map: malloc/free/picosbrk archive members present'
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Executable
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#!/usr/bin/env bash
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set -euo pipefail
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root="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
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pdf_count="$(find "$root/doc/pdf" -maxdepth 1 -type f -name '*.pdf' | wc -l)"
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[[ "$pdf_count" -eq 1 ]]
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python3 - "$root/json/card_source.json" "$root/web/card-data.json" <<'PY'
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import json
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import sys
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with open(sys.argv[1], encoding="utf-8") as stream:
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card = json.load(stream)
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with open(sys.argv[2], encoding="utf-8") as stream:
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web = json.load(stream)
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assert card["tasks_order"] == [f"task{number:02d}" for number in range(1, 6)]
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blocks = []
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flow_ids = []
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for task_id in card["tasks_order"]:
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task = card["tasks"][task_id]
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viewpoints = task["viewpoints"]
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assert [item["id"] for item in viewpoints] == [f"A{number}" for number in range(1, 9)]
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assert len(viewpoints) == 8
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assert all(item["status"] in {"enabled", "unavailable"} for item in viewpoints)
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assert all(item.get("id") for item in task["flow"])
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flow_ids.extend(item["id"] for item in task["flow"])
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blocks.extend(item for item in task["flow"] if item["id"].startswith(task_id + ".a"))
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assert len(blocks) == 40
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assert len(flow_ids) == len(set(flow_ids))
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task02_proof = next(
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item for item in card["tasks"]["task02"]["flow"]
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if item["id"] == "task02.proof"
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)
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assert "programu hostowego" not in task02_proof["evidence_tex"]
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assert "brakująca nazwa" in task02_proof["evidence_tex"]
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def viewpoint_ids(value):
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if isinstance(value, dict):
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identifier = value.get("id")
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if isinstance(identifier, str) and identifier.rsplit(".", 1)[-1] in {
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f"a{number}" for number in range(1, 9)
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}:
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yield identifier
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for child in value.values():
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yield from viewpoint_ids(child)
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elif isinstance(value, list):
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for child in value:
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yield from viewpoint_ids(child)
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web_ids = list(viewpoint_ids(web))
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assert len(web_ids) == 40
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assert len(set(web_ids)) == 40
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print("PASS card JSON: 5 tasks x exact A1-A8 = 40 viewpoint blocks")
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PY
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tex_viewpoints="$(rg -o '\\begin\{ESCBlockFrame\}\{A[1-8] ' \
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"$root/doc/generated/main.tex" | wc -l)"
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[[ "$tex_viewpoints" -eq 40 ]]
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for viewpoint in {1..8}; do
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count="$(rg -o "\\\\begin\\{ESCBlockFrame\\}\\{A${viewpoint} " \
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"$root/doc/generated/main.tex" | wc -l)"
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[[ "$count" -eq 5 ]]
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done
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tex_count="$(rg -o '\\textbf\{N/D\.\}' "$root/doc/generated/main.tex" | wc -l)"
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[[ "$tex_count" -ge 6 ]]
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qpdf --check "$root"/doc/pdf/*.pdf
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rg -q 'task02\.a6' "$root/json/card_source.json"
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pdf_text="$(mktemp)"
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trap 'rm -f -- "$pdf_text"' EXIT
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pdftotext "$root"/doc/pdf/*.pdf "$pdf_text"
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pdf_viewpoints="$(rg -o 'BLOCK A[1-8]' "$pdf_text" | wc -l)"
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[[ "$pdf_viewpoints" -eq 40 ]]
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if rg -qi 'anonymous|anonimowy|bez nazwy' "$pdf_text"; then
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echo 'FAIL card: anonymous block marker found' >&2
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exit 1
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fi
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printf 'PASS card artifacts: TeX, web and one valid PDF\n'
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Executable
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#!/usr/bin/env bash
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set -euo pipefail
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root="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
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nm_tool="${RISCV_PREFIX:-riscv64-unknown-elf-}nm"
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readelf_tool="${RISCV_PREFIX:-riscv64-unknown-elf-}readelf"
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symbol_value() {
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"$nm_tool" -n "$1" | awk -v wanted="$2" '$3 == wanted { print $1; exit }'
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}
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for task in \
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task01_libc_without_heap \
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task03_bounded_sbrk \
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task04_smalloc \
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task05_picolibc_malloc; do
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elf="$root/build/$task/prog.elf"
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start_hex="$(symbol_value "$elf" __heap_start)"
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end_hex="$(symbol_value "$elf" __heap_end)"
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stack_bottom_hex="$(symbol_value "$elf" __stack_bottom)"
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reset_hex="$(symbol_value "$elf" .reset_handler)"
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[[ -n "$start_hex" && -n "$end_hex" && -n "$stack_bottom_hex" ]]
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[[ "$reset_hex" == "80000040" ]]
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(( 16#$start_hex <= 16#$end_hex ))
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(( 16#$end_hex == 16#$stack_bottom_hex ))
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(( (16#$start_hex & 15) == 0 ))
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(( (16#$end_hex & 15) == 0 ))
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"$readelf_tool" -h "$elf" | grep -q 'Class:.*ELF32'
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if "$readelf_tool" -lW "$elf" | grep -Eq 'LOAD.*RWE'; then
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echo "FAIL $task: writable and executable LOAD segment" >&2
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exit 1
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fi
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done
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task05="$root/build/task05_picolibc_malloc/prog.elf"
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for symbol in _sbrk sbrk malloc free __heap_start __heap_end; do
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[[ -n "$(symbol_value "$task05" "$symbol")" ]]
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done
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printf '%s\n' \
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'PASS linker: reset=0x80000040; bounded aligned heap; no RWX LOAD segment' \
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'PASS Task05 ELF: vendor _sbrk and picolibc sbrk coexist'
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Executable
+28
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#!/usr/bin/env bash
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set -euo pipefail
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root="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
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if [[ "${1:-}" != "--already-built" ]]; then
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make -C "$root" PROFILE=observe host >/dev/null
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fi
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check_output() {
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local program="$1" expected="$2" actual
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actual="$($program)"
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if [[ "$actual" != "$expected" ]]; then
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printf 'FAIL %s\nexpected: %s\nactual: %s\n' \
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"$program" "$expected" "$actual" >&2
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return 1
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fi
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printf 'PASS %s: %s\n' "$(basename -- "$(dirname -- "$program")")" "$actual"
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}
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check_output "$root/host-build/task01_libc_without_heap/prog" \
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'length=16 pass=1'
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check_output "$root/host-build/task03_bounded_sbrk/prog" \
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'grow=40 rejected_grow=40 shrink=32 rejected_shrink=32 preserved=1 bounds=1 pass=1'
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check_output "$root/host-build/task04_smalloc/prog" \
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'header=16 first=32 second=48 delta=32 aligned=1 metadata=1 append=1 reset=1 pass=1'
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check_output "$root/host-build/task05_picolibc_malloc/prog" \
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'nonnull=1 delta_nonzero=1 checksum=4612 nonoverlap=1 aligned=1 freed=1 pass=1'
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