[all-commits] [llvm/llvm-project] e362f3: [libc][stdlib] Add putenv (#208339)

[Jeff Bailey via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e362f3c8466dfb4021d409f50eae179b9b0b1957
      https://github.com/llvm/llvm-project/commit/e362f3c8466dfb4021d409f50eae179b9b0b1957
  Author: Jeff Bailey <jbailey at raspberryginger.com>
  Date:   2026-07-28 (Tue, 28 Jul 2026)

  Changed paths:
    M libc/config/linux/aarch64/entrypoints.txt
    M libc/config/linux/riscv/entrypoints.txt
    M libc/config/linux/x86_64/entrypoints.txt
    M libc/include/stdlib.yaml
    M libc/src/stdlib/CMakeLists.txt
    M libc/src/stdlib/environ_internal.cpp
    M libc/src/stdlib/environ_internal.h
    M libc/src/stdlib/linux/CMakeLists.txt
    A libc/src/stdlib/linux/putenv.cpp
    A libc/src/stdlib/putenv.h
    M libc/test/integration/src/stdlib/CMakeLists.txt
    A libc/test/integration/src/stdlib/putenv_test.cpp

  Log Message:
  -----------
  [libc][stdlib] Add putenv (#208339)

Added the POSIX putenv() function and its internal support.

Implemented EnvironmentManager::put() to insert caller-provided
"name=value" strings directly into the environment array, managing
ownership correctly (caller retains ownership).

Registered for x86_64, aarch64, and riscv. Integration tests cover basic
operations, ownership semantics, validation, and edge cases.

Assisted-by: Automated tooling, human reviewed.



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