PIE not enabled?

[iquiw]

Summary

zls seems not a PIE even with -Dpie=true. I suppose exe.pie needs to be true.

Steps

1. Build zls with pie option.

   $ zig build -Dpie=true

2. Check the executable by file.

   $ file zig-out/bin/zls
   zig-out/bin/zls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, with debug_info, not stripped

There is no pie output after LSB.

Possible fix

With the following patch, zls seems to be a PIE.

--- a/build.zig
+++ b/build.zig
@@ -217,6 +217,7 @@ pub fn build(b: *Build) !void {
             .use_llvm = use_llvm,
             .use_lld = use_llvm,
         });
+        exe.pie = pie;
         b.installArtifact(exe);
     }

$ zig build -Dpie=true
$ file zig-out/bin/zls
zig-out/bin/zls: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), static-pie linked, with debug_info, not stripped

There is pie output after LSB.