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diff --git a/doc/stdenv/stdenv.chapter.md b/doc/stdenv/stdenv.chapter.md index 166587d3284..4fad249097c 100644 --- a/doc/stdenv/stdenv.chapter.md +++ b/doc/stdenv/stdenv.chapter.md @@ -1140,6 +1140,13 @@ Here are some more packages that provide a setup hook. Since the list of hooks i Many other packages provide hooks, that are not part of `stdenv`. You can find these in the [Hooks Reference](#chap-hooks). +### Compiler and Linker wrapper hooks {#compiler-linker-wrapper-hooks} + +If the file `${cc}/nix-support/cc-wrapper-hook` exists, it will be run at the end of the [compiler wrapper](#cc-wrapper). +If the file `${binutils}/nix-support/post-link-hook` exists, it will be run at the end of the linker wrapper. +These hooks allow a user to inject code into the wrappers. +As an example, these hooks can be used to extract `extraBefore`, `params` and `extraAfter` which store all the command line arguments passed to the compiler and linker respectively. + ## Purity in Nixpkgs {#sec-purity-in-nixpkgs} *Measures taken to prevent dependencies on packages outside the store, and what you can do to prevent them.* |