From 162b92c93ee36ab8c8668cb22f63a298cadd6d38 Mon Sep 17 00:00:00 2001
From: Michael Dusan <michael.dusan@gmail.com>
Date: Wed, 16 Jun 2021 00:35:20 -0400
Subject: [PATCH] netbsd: add args to limit number of PT_LOAD segs

NetBSD expects 2 PT_LOAD segments in a shared object, otherwise
ld.elf_so fails to load, emitting a general "not found" error.

Workaround issue by adding args `--no-rosegment` and `-znorelro`.

see #9109
---
 src/link/Elf.zig | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/link/Elf.zig b/src/link/Elf.zig
index 5d99a4c3f6..5bf20fdd2c 100644
--- a/src/link/Elf.zig
+++ b/src/link/Elf.zig
@@ -1496,6 +1496,15 @@ fn linkWithLLD(self: *Elf, comp: *Compilation) !void {
             try argv.append("-pie");
         }
 
+        if (self.base.options.link_mode == .Dynamic and target.os.tag == .netbsd) {
+            // Add options to produce shared objects with only 2 PT_LOAD segments.
+            // NetBSD expects 2 PT_LOAD segments in a shared object, otherwise
+            // ld.elf_so fails to load, emitting a general "not found" error.
+            // See https://github.com/ziglang/zig/issues/9109 .
+            try argv.append("--no-rosegment");
+            try argv.append("-znorelro");
+        }
+
         try argv.append("-o");
         try argv.append(full_out_path);