Review rev_9de68cc6e49441c08f536c0c3a3d8288
UserOfficiald7d85a95-49ea-818b-aa46-7dff97fe9263
Package
compiler_builtins@0.1.160
Registry
crates.io
Package Hash
Files Reviewed
5
Agent
codex-gpt-5.4-mini-medium
Review Procedure
file-focused-review/v1
Created
2026-06-30
Severity
noneConfidence
highReviewed `src/math/libm_math/fminimum_fmaximum_num.rs`, which contains straightforward IEEE-754 minimum/maximum wrapper functions for f16/f32/f64/f128 plus unit tests. I checked for install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, and other hidden execution paths; none are present in this file. Reviewed `src/math/libm_math/support/macros.rs`, which contains vendored Rust macros for cfg-based implementation selection, hexadecimal float construction, and a test-only bitwise assertion helper. I found no concrete supply-chain indicators in this file: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, or persistence behavior. `configure.rs` is a build-configuration helper for `compiler_builtins` that reads Cargo/Rust target environment variables and emits `cargo:rustc-cfg` flags for target aliases and `f16`/`f128` support. I checked it for install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators. Reviewed `src/math/libm_math/expm1.rs`, which is a standalone `expm1` floating-point implementation derived from FreeBSD/Sun math code plus a small unit test. I found no concrete malicious or supply-chain indicators: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, or persistence behavior. Reviewed `src/math/libm_math/fmin_fmax.rs`, which contains thin wrappers for IEEE 754 `fmin`/`fmax` across float widths plus unit tests. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network/exfiltration paths, credential access, dynamic code loading, obfuscation, or persistence behavior.
{
"summary": "Reviewed `src/math/libm_math/fminimum_fmaximum_num.rs`, which contains straightforward IEEE-754 minimum/maximum wrapper functions for f16/f32/f64/f128 plus unit tests. I checked for install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, and other hidden execution paths; none are present in this file.\nReviewed `src/math/libm_math/support/macros.rs`, which contains vendored Rust macros for cfg-based implementation selection, hexadecimal float construction, and a test-only bitwise assertion helper. I found no concrete supply-chain indicators in this file: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, or persistence behavior.\n`configure.rs` is a build-configuration helper for `compiler_builtins` that reads Cargo/Rust target environment variables and emits `cargo:rustc-cfg` flags for target aliases and `f16`/`f128` support. I checked it for install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators.\nReviewed `src/math/libm_math/expm1.rs`, which is a standalone `expm1` floating-point implementation derived from FreeBSD/Sun math code plus a small unit test. I found no concrete malicious or supply-chain indicators: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, or persistence behavior.\nReviewed `src/math/libm_math/fmin_fmax.rs`, which contains thin wrappers for IEEE 754 `fmin`/`fmax` across float widths plus unit tests. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network/exfiltration paths, credential access, dynamic code loading, obfuscation, or persistence behavior.",
"review_procedure": "file-focused-review/v1",
"public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
"agent": {
"name": "codex",
"model": "gpt-5.4-mini",
"reasoning_effort": "medium"
},
"files": [
{
"path": "src/math/libm_math/fminimum_fmaximum_num.rs",
"hash": "blake3:afa7151c8dc49980a480fff70deeb4b6dc536aaf27a7aac0bf4a28464ea82c61",
"summary": "Reviewed `src/math/libm_math/fminimum_fmaximum_num.rs`, which contains straightforward IEEE-754 minimum/maximum wrapper functions for f16/f32/f64/f128 plus unit tests. I checked for install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, and other hidden execution paths; none are present in this file.",
"severity": "none",
"confidence": "high"
},
{
"path": "src/math/libm_math/support/macros.rs",
"hash": "blake3:c502d35358c7f3e3db6dd9736e1b942e5350d9e114f2a73a6b25402b6e4699de",
"summary": "Reviewed `src/math/libm_math/support/macros.rs`, which contains vendored Rust macros for cfg-based implementation selection, hexadecimal float construction, and a test-only bitwise assertion helper. I found no concrete supply-chain indicators in this file: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, or persistence behavior.",
"severity": "none",
"confidence": "high"
},
{
"path": "configure.rs",
"hash": "blake3:b3ae809ac48555a4cd41ee1ea5f80ced65710e78e7376012b2bd9a4462f8aa6a",
"summary": "`configure.rs` is a build-configuration helper for `compiler_builtins` that reads Cargo/Rust target environment variables and emits `cargo:rustc-cfg` flags for target aliases and `f16`/`f128` support. I checked it for install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators.",
"severity": "none",
"confidence": "high"
},
{
"path": "src/math/libm_math/expm1.rs",
"hash": "blake3:d1f9489515d4f3b4e487c1eb6dc5e6009b0ce45c235e940fc5a08668bda9ca23",
"summary": "Reviewed `src/math/libm_math/expm1.rs`, which is a standalone `expm1` floating-point implementation derived from FreeBSD/Sun math code plus a small unit test. I found no concrete malicious or supply-chain indicators: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, or persistence behavior.",
"severity": "none",
"confidence": "high"
},
{
"path": "src/math/libm_math/fmin_fmax.rs",
"hash": "blake3:c2cc23f2e503647093cd521f4d7989c303b5930eb284391e2137901392e42a18",
"summary": "Reviewed `src/math/libm_math/fmin_fmax.rs`, which contains thin wrappers for IEEE 754 `fmin`/`fmax` across float widths plus unit tests. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network/exfiltration paths, credential access, dynamic code loading, obfuscation, or persistence behavior.",
"severity": "none",
"confidence": "high"
}
]
}