122 lines
4.4 KiB
YAML
122 lines
4.4 KiB
YAML
name: Build WeirdPerformance 2.4-B1 GC test
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on:
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push:
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branches:
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- test/wp24b-gc-safe-sweep
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paths:
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- 'experiments/wp24b-gc/**'
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- '.github/workflows/wp24b-gc.yml'
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workflow_dispatch:
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permissions:
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contents: read
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- uses: mlugg/setup-zig@v2
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with:
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version: '0.17.0-dev.1970+67f39b551'
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- name: Build and ABI-validate x86 DLL
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working-directory: experiments/wp24b-gc
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run: |
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set -euo pipefail
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zig build --fetch
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python3 - <<'PY'
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from pathlib import Path
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matches = list(Path("zig-pkg").glob("zhook-*/src/zhook.zig"))
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if len(matches) != 1:
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raise SystemExit(f"expected one pinned zhook source, found {len(matches)}")
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p = matches[0]
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text = p.read_text(encoding="utf-8")
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old = "var patch: [MAX_STOLEN]u8 = .{0x90} ** MAX_STOLEN;"
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new = "var patch: [MAX_STOLEN]u8 = @splat(0x90);"
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if old not in text:
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raise SystemExit("expected pinned zhook repeat initializer not found")
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p.write_text(text.replace(old, new), encoding="utf-8")
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PY
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zig build -Doptimize=small
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DLL=zig-out/bin/weirdperformance_gc24b1.dll
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test -s "$DLL"
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file "$DLL" | tee BINARY_INFO.txt
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file "$DLL" | grep -q 'PE32.*Intel i386'
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if command -v llvm-objdump >/dev/null 2>&1; then
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llvm-objdump -d --x86-asm-syntax=intel "$DLL" > ABI_DISASM.txt
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else
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objdump -d -M intel "$DLL" > ABI_DISASM.txt
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fi
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python3 - <<'PY'
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import re
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from pathlib import Path
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asm = Path("ABI_DISASM.txt").read_text(encoding="utf-8", errors="replace").lower()
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def require(pattern, label):
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if not re.search(pattern, asm, re.S):
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raise SystemExit(f"ABI validation failed: {label}")
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# zhook must jump to callbacks compiled with L arriving in ECX.
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m = re.search(r"mov\s+edx,\s*0x6f7340.{0,240}?push\s+0x([0-9a-f]+)", asm, re.S)
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if not m:
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raise SystemExit("ABI validation failed: collector callback address not found")
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cb = m.group(1).lstrip("0") or "0"
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pos = asm.find(cb + ":")
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if pos < 0 or not re.search(r"mov\s+esi,\s*ecx", asm[pos:pos+500]):
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raise SystemExit("ABI validation failed: collector callback does not consume L from ECX")
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m = re.search(r"mov\s+edx,\s*0x6f6ef0.{0,240}?push\s+0x([0-9a-f]+)", asm, re.S)
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if not m:
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raise SystemExit("ABI validation failed: lua_close callback address not found")
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cb = m.group(1).lstrip("0") or "0"
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pos = asm.find(cb + ":")
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if pos < 0 or not re.search(r"mov\s+esi,\s*ecx", asm[pos:pos+400]):
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raise SystemExit("ABI validation failed: lua_close callback does not consume L from ECX")
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# Native helper ABI observed in WoW 5875:
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# ECX=L, EDX=&list, stack arg=all for 0x6F7210.
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require(
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r"lea\s+edx,\s*\[edi\s*\+\s*0x14\].{0,160}?"
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r"mov\s+eax,\s*0x6f7210.{0,120}?"
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r"mov\s+ecx,\s*esi.{0,120}?"
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r"push\s+0x0.{0,80}?call\s+eax",
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"lua_gc_remove_objects register/stack ABI",
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)
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require(
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r"mov\s+eax,\s*0x6f72f0.{0,120}?"
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r"mov\s+ecx,\s*esi.{0,100}?"
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r"xor\s+edx,\s*edx.{0,80}?call\s+eax",
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"lua_gc_sweep_all_lists fastcall ABI",
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)
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for addr, label in (
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("6f73e0", "lua_gc_full_collection"),
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("6f7370", "lua_gc_shrink_memory"),
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("6f7080", "luaCallUserDataGC"),
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):
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require(
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rf"mov\s+eax,\s*0x{addr}.{{0,120}}?mov\s+ecx,\s*esi.{{0,80}}?call\s+eax",
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f"{label} ECX ABI",
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)
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print("ABI validation: PASS")
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PY
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sha256sum "$DLL" | tee SHA256SUMS.txt
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- uses: actions/upload-artifact@v4
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with:
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name: WeirdPerformance-2.4-B1-GC-Safe-Sweep
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path: |
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experiments/wp24b-gc/zig-out/bin/weirdperformance_gc24b1.dll
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experiments/wp24b-gc/SHA256SUMS.txt
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experiments/wp24b-gc/BINARY_INFO.txt
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experiments/wp24b-gc/ABI_DISASM.txt
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experiments/wp24b-gc/README.md
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if-no-files-found: error
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