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[pitboss] phase 26: Track G.3 — End-to-end chain re-verification

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pitboss 2026-05-15 17:22:46 -05:00
parent 4228be2db6
commit 8a801953e2
21 changed files with 991 additions and 15 deletions
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24
src/dynamic/lang/cpp.rs
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@ -15,7 +15,7 @@
//! Build step: `prepare_cpp()` in `build_sandbox.rs` runs
//! `g++ -O0 -std=c++17 -o nyx_harness main.cpp` in the workdir.
use crate::dynamic::lang::{HarnessSource, LangEmitter};
use crate::dynamic::lang::{ChainStepHarness, HarnessSource, LangEmitter};
use crate::dynamic::spec::{EntryKind, HarnessSpec, PayloadSlot};
use crate::evidence::UnsupportedReason;
use std::path::PathBuf;
@ -280,6 +280,28 @@ impl LangEmitter for CppEmitter {
"cpp emitter supports {SUPPORTED:?}; this finding's enclosing context is `EntryKind::{attempted}` — see Phase 16 shape dispatch (main / libFuzzer / free function)"
)
}
fn compose_chain_step(&self, prev_output: Option<&[u8]>) -> ChainStepHarness {
chain_step(prev_output)
}
}
/// Phase 26 — C++ chain-step harness.
fn chain_step(prev_output: Option<&[u8]>) -> ChainStepHarness {
let source = "#include <cstdio>\n#include <cstdlib>\n\nint main() {\n const char *prev = std::getenv(\"NYX_PREV_OUTPUT\");\n if (prev) std::fputs(prev, stdout);\n return 0;\n}\n".to_owned();
ChainStepHarness {
source,
filename: "step.cpp".to_owned(),
command: vec!["c++".to_owned(), "step.cpp".to_owned(), "-o".to_owned(), "step".to_owned()],
extra_env: prev_output
.map(|bytes| {
vec![(
ChainStepHarness::PREV_OUTPUT_ENV.to_owned(),
String::from_utf8_lossy(bytes).into_owned(),
)]
})
.unwrap_or_default(),
}
}
/// Emit a C++ harness for `spec`.