X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=config.toml.example;h=df2fb448b7d4dc9b437636fe6ff40f69e3c8257d;hb=2fbe2ca916e4a815a15c5100bc5ad1452d33a314;hp=16952a5ced83e5d2c508770e3c9e45a837c096d2;hpb=8a57820bca64a252489790a57cb5ea23db6f9198;p=rust.git

diff --git a/config.toml.example b/config.toml.example
index 16952a5ced8..df2fb448b7d 100644
--- a/config.toml.example
+++ b/config.toml.example
@@ -563,6 +563,14 @@ changelog-seen = 2
 
 # Use LLVM libunwind as the implementation for Rust's unwinder.
 # Accepted values are 'in-tree' (formerly true), 'system' or 'no' (formerly false).
+# This option only applies for Linux and Fuchsia targets.
+# On Linux target, if crt-static is not enabled, 'no' means dynamic link to
+# `libgcc_s.so`, 'in-tree' means static link to the in-tree build of llvm libunwind
+# and 'system' means dynamic link to `libunwind.so`. If crt-static is enabled,
+# the behavior is depend on the libc. On musl target, 'no' and 'in-tree' both 
+# means static link to the in-tree build of llvm libunwind, and 'system' means 
+# static link to `libunwind.a` provided by system. Due to the limitation of glibc,
+# it must link to `libgcc_eh.a` to get a working output, and this option have no effect.
 #llvm-libunwind = 'no'
 
 # Enable Windows Control Flow Guard checks in the standard library.