{
 "number": 25573,
 "input_hash": "89d5feb383c570d2",
 "model": "openrouter/google/gemini-3.8-flash",
 "batch": false,
 "created": "2026-09-17T21:14:04+00:00",
 "provider": "Google",
 "stop_reason": "end_turn",
 "usage": {
  "input_tokens": 58218,
  "cache_creation_input_tokens": 0,
  "cache_read_input_tokens": 0,
  "output_tokens": 3673
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 "result": {
  "display": {
   "goal": [
    "Produce static position-independent executables (-static-pie) for Linux release binaries",
    "Allow bitcoind and CLI tools to run seamlessly across diverse distributions, containers, and older kernels without external glibc dependencies"
   ],
   "reviewability": [
    "Reviewable now, based on prerequisite toolchain PRs #36272 and #36193"
   ],
   "agreement": [
    "Strong support and extensive cross-distribution verification (theuni, willcl-ark, hebasto, sedited, dergoegge, sipa)",
    "NSS resolver limitations under static linkage were thoroughly analyzed, tested, and documented in release notes"
   ],
   "categories": [
    {
     "name": "build",
     "why": [
      "P2 because it majorly enhances release binary portability across Linux environments",
      "Removes glibc host version dependencies for bitcoind and CLI tools while retaining ASLR security"
     ]
    }
   ]
  },
  "summary": "Updates the Guix build configuration to build Linux release binaries for x86_64 and aarch64 (excluding bitcoin-qt) as static position-independent executables (-static-pie) using GCC 14 and glibc 2.44. It adapts symbol-check and security-check scripts for static ELF binaries, patches glibc to avoid dynamic NSS module loading and store path leakage, and adds release notes documenting the change and its name resolution behavior.",
  "problem": "Currently, Bitcoin Core release binaries dynamically link against glibc, requiring an older glibc baseline in Guix and causing friction or failure on non-glibc distributions (like Alpine/musl), NixOS, scratch containers, and very old systems.",
  "discussion": {
   "open_concerns": [],
   "resolved_concerns": [
    "Dynamic NSS name resolution failure (e.g. mDNS/LDAP): verified to fail closed gracefully to DNS/fixed seeds and documented in release notes.",
    "Symbol and security checks: adapted to handle static ELF binaries where fortify checks and dynamic library dependencies differ.",
    "Glibc store path leaks causing nondeterminism: eliminated with custom glibc patches."
   ],
   "author_status": "active, frequently rebasing and coordinating prerequisite build refactors"
  },
  "reviewability": {
   "state": "Ready",
   "label": "Review #36272 first",
   "reason": "The code and Guix builds are fully functional and reproducible, but the PR is based on prerequisite toolchain PRs #36272 and #36193."
  },
  "agreement": {
   "participants": [
    {
     "login": "theuni",
     "stance": "support",
     "note": "enthusiastic support for static glibc builds over musl"
    },
    {
     "login": "luke-jr",
     "stance": "question",
     "note": "asked how glibc static applications handle resolvers"
    },
    {
     "login": "Frank-GER",
     "stance": "neutral",
     "note": "reported early 2022 test results on Ubuntu 20.04/22.04"
    },
    {
     "login": "dergoegge",
     "stance": "support",
     "note": "Concept ACK and tested on NixOS"
    },
    {
     "login": "m3dwards",
     "stance": "support",
     "note": "praised concept and asked about trade-offs"
    },
    {
     "login": "willcl-ark",
     "stance": "support",
     "note": "Approach ACK, tested Guix reproducibility and docker/alpine/nixos runtime, analyzed NSS and fortify implications"
    },
    {
     "login": "sipa",
     "stance": "support",
     "note": "supportive concept comment"
    },
    {
     "login": "w0xlt",
     "stance": "support",
     "note": "Concept ACK"
    },
    {
     "login": "nkatha23",
     "stance": "support",
     "note": "tested binary and DNS/NSS resolution on Fedora 43"
    },
    {
     "login": "hebasto",
     "stance": "support",
     "note": "Concept and Approach ACK, tested on Fedora 21, discussed link warnings and kernel floor"
    },
    {
     "login": "tobtoht",
     "stance": "neutral",
     "note": "clarified that existing dependencies outside libc were already statically linked"
    },
    {
     "login": "151henry151",
     "stance": "support",
     "note": "verified Guix reproducibility, ELF structure, and NSS fail-closed behavior"
    },
    {
     "login": "sedited",
     "stance": "support",
     "note": "tested on ARM / Ubuntu / Armbian, helped draft release notes for NSS"
    },
    {
     "login": "jsarenik",
     "stance": "support",
     "note": "Approach ACK, running static binary on Alpine signet faucet"
    },
    {
     "login": "xrviv",
     "stance": "support",
     "note": "tested Guix build reproducibility and verified NSS resolution behavior"
    },
    {
     "login": "0xB10C",
     "stance": "support",
     "note": "tested x86 and aarch64 binaries on NixOS"
    },
    {
     "login": "ottosch",
     "stance": "support",
     "note": "tested unit tests and binary on Arch Linux"
    },
    {
     "login": "theStack",
     "stance": "support",
     "note": "tested aarch64 binary on Ubuntu 25.04"
    },
    {
     "login": "janb84",
     "stance": "support",
     "note": "tested in Apple container environment on Alpine"
    },
    {
     "login": "ketominer",
     "stance": "support",
     "note": "tested on Ubuntu 18.04 aarch64 for nodl"
    }
   ],
   "objections": [],
   "support": [
    {
     "reviewer": "theuni",
     "reason": "Much more palatable and auditable than switching to musl libc",
     "substantive": true
    },
    {
     "reviewer": "willcl-ark",
     "reason": "Significantly improves portability across scratch containers, NixOS, and diverse Linux distributions without host glibc coupling",
     "substantive": true
    },
    {
     "reviewer": "hebasto",
     "reason": "Tested binary execution and verified Guix toolchain construction",
     "substantive": true
    },
    {
     "reviewer": "jsarenik",
     "reason": "Enables clean deployment on Alpine without glibc compatibility shims",
     "substantive": true
    }
   ],
   "state": "Strong",
   "summary": "Broad support across maintainers and contributors with extensive cross-distribution and Guix reproducibility testing.",
   "reason": "Multiple maintainers and regular contributors gave Concept and Approach ACKs. Concerns regarding external NSS resolution behavior were investigated, tested across multiple distros, and documented in release notes.",
   "evidence": [
    "theuni: 'This is amazing! ... This is a MUCH more palatable change.'",
    "willcl-ark: 'Approach ACK ... I think this is a worthwhile goal for a number of reasons.'",
    "hebasto: 'Approach ACK 06b842f50872e38a6ac4956c9305edf543bca695.'"
   ],
   "model_state": "Strong",
   "derivation": "substantive support, no open objection (theuni, willcl-ark, hebasto, jsarenik)",
   "corrections": [],
   "thread_read": {
    "error": "Expecting value: line 1 column 1 (char 0)"
   }
  },
  "dependencies": {
   "depends_on": [
    36272,
    36193
   ],
   "enables": [
    "#19075 Investigate aarch64 pointer authentication"
   ]
  },
  "categories": [
   {
    "name": "build",
    "member": true,
    "evidence": "Modifies Guix build manifests, scripts, toolchain definitions, and symbol/security check linters.",
    "band": "P2",
    "reason_tag": "new feature",
    "score": 0.7,
    "factors": {
     "security_stability": 1,
     "bug_severity": 0,
     "performance": 0,
     "user_value": 2,
     "leverage": 2
    },
    "rationale": "Produces fully portable static position-independent binaries for Linux release artifacts, eliminating runtime glibc version mismatches and enabling execution on Alpine, NixOS, scratch containers, and older enterprise systems while preserving ASLR. It also resolves a long-standing issue (#19075)."
   },
   {
    "name": "docs",
    "member": false,
    "evidence": "Release notes are included as a standard part of the build change, not standalone documentation.",
    "band": "Unranked",
    "reason_tag": "",
    "score": 0.0,
    "factors": {
     "security_stability": 0,
     "bug_severity": 0,
     "performance": 0,
     "user_value": 0,
     "leverage": 0
    },
    "rationale": "Release notes follow from the main build change and do not make the PR a documentation member."
   },
   {
    "name": "tools",
    "member": false,
    "evidence": "Changes in contrib/guix are part of the Guix release build system, which belongs strictly to the build category.",
    "band": "Unranked",
    "reason_tag": "",
    "score": 0.0,
    "factors": {
     "security_stability": 0,
     "bug_severity": 0,
     "performance": 0,
     "user_value": 0,
     "leverage": 0
    },
    "rationale": "Build and release tooling under contrib/guix is categorized under build rather than tools."
   }
  ],
  "confidence": "high",
  "uncertainties": [],
  "needs": [],
  "card": "This PR configures Guix to build Linux bitcoind and CLI executables as -static-pie binaries using GCC 14 and glibc 2.44, while leaving the GUI dynamic. This eliminates host glibc version dependencies, allowing release binaries to run out of the box on musl/Alpine, NixOS, scratch containers, and older distributions while maintaining ASLR security. The PR has strong support and has been thoroughly tested for reproducibility and cross-platform compatibility across many distributions. It depends on base PRs #36272 and #36193."
 },
 "raw_text": null,
 "prompt_hash": "c1bd47c5"
}