8e709b0a24
Snapshot of every non-log artifact under audit-runs/ from audits 003 through 058: findings.md per audit, comparison CSVs, probe diffs, schema docs, register-dump txts, lr-trace JSONL streams, the saved canary patch diffs, etc. ~284 files / ~52 MB total. Excluded (per .gitignore): probe stdout/stderr/log streams (the raw firehose), guest-memory dumps under audit-026/027/029 (4.5 GB of .bin files; *.bin pattern added to .gitignore this commit). Also adds the orphan audit-058-sub825070F0-activation directory that a subagent accidentally created at project-root instead of under xenia-rs/audit-runs/; relocated to its proper home. Purpose: cross-machine continuity. With these summaries committed, a fresh clone gives the next session the full per-audit context (findings + tables + cascade predictions) without dependence on local-only working tree. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
81 lines
3.1 KiB
Diff
81 lines
3.1 KiB
Diff
diff --git a/src/xenia/cpu/cpu_flags.cc b/src/xenia/cpu/cpu_flags.cc
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index 3ff067e15..467bc34b2 100644
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--- a/src/xenia/cpu/cpu_flags.cc
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+++ b/src/xenia/cpu/cpu_flags.cc
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@@ -57,3 +57,9 @@ DEFINE_bool(break_condition_truncate, true, "truncate value to 32-bits", "CPU");
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DEFINE_bool(break_on_debugbreak, true, "int3 on JITed __debugbreak requests.",
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"CPU");
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+
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+DEFINE_string(memory_dump_path, "",
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+ "If non-empty, dump guest memory (heaps v0/v40/v80/v90/phys) to "
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+ "this path on first XamNotifyCreateListener call. Format = "
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+ "Memory::Save() raw (no signature/header).",
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+ "CPU");
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diff --git a/src/xenia/cpu/cpu_flags.h b/src/xenia/cpu/cpu_flags.h
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index 38c4f98ba..02f15d5b2 100644
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--- a/src/xenia/cpu/cpu_flags.h
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+++ b/src/xenia/cpu/cpu_flags.h
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@@ -35,4 +35,6 @@ DECLARE_bool(break_condition_truncate);
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DECLARE_bool(break_on_debugbreak);
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+DECLARE_string(memory_dump_path);
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+
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#endif // XENIA_CPU_CPU_FLAGS_H_
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diff --git a/src/xenia/kernel/xam/xam_notify.cc b/src/xenia/kernel/xam/xam_notify.cc
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index 2f88d5e7d..006c7e5d9 100644
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--- a/src/xenia/kernel/xam/xam_notify.cc
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+++ b/src/xenia/kernel/xam/xam_notify.cc
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@@ -15,6 +15,15 @@
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#include "xenia/kernel/xthread.h"
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#include "xenia/xbox.h"
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+#include <atomic>
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+#include "xenia/base/byte_stream.h"
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+#include "xenia/base/filesystem.h"
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+#include "xenia/base/logging.h"
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+#include "xenia/base/mapped_memory.h"
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+#include "xenia/cpu/cpu_flags.h"
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+#include "xenia/emulator.h"
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+#include "xenia/memory.h"
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+
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namespace xe {
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namespace kernel {
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namespace xam {
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@@ -42,7 +51,33 @@ dword_result_t XamNotifyCreateListener_entry(qword_t mask,
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auto thread = kernel::XThread::GetCurrentThread();
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auto ctx = thread->thread_state()->context();
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auto type = xboxkrnl::xeKeGetCurrentProcessType(ctx);
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- return xeXamNotifyCreateListener(mask, type == 2, max_version);
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+ uint32_t result = xeXamNotifyCreateListener(mask, type == 2, max_version);
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+
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+ // AUDIT-023: dump guest memory on first XamNotifyCreateListener call.
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+ static std::atomic<bool> dumped{false};
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+ bool expected = false;
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+ if (!cvars::memory_dump_path.empty() &&
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+ dumped.compare_exchange_strong(expected, true)) {
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+ std::filesystem::path path(cvars::memory_dump_path);
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+ XELOGI("AUDIT-023: dumping guest memory to {} (mask={:#x})",
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+ cvars::memory_dump_path, uint64_t(mask));
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+ // Pre-size the file: PosixMappedMemory mmap's the existing file size.
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+ constexpr size_t kReserve = size_t(2) * 1024 * 1024 * 1024;
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+ filesystem::CreateEmptyFile(path);
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+ std::filesystem::resize_file(path, kReserve);
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+ auto map = MappedMemory::Open(path, MappedMemory::Mode::kReadWrite, 0,
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+ kReserve);
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+ if (map) {
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+ ByteStream stream(map->data(), map->size());
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+ kernel_state()->emulator()->memory()->Save(&stream);
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+ map->Close(stream.offset());
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+ XELOGI("AUDIT-023: wrote {} bytes", stream.offset());
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+ } else {
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+ XELOGE("AUDIT-023: failed to open dump path");
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+ }
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+ }
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+
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+ return result;
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}
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DECLARE_XAM_EXPORT1(XamNotifyCreateListener, kNone, kImplemented);
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