From 71e1d7cb8bfe52ccf82f5ba64d1c5d6c5b5077fc Mon Sep 17 00:00:00 2001
From: Matthew Lugg <mlugg@mlugg.co.uk>
Date: Mon, 25 May 2026 06:41:30 +0100
Subject: [PATCH] codegen.x86_64: fix Elf2 relocations under PIC

---
 src/codegen/x86_64/Emit.zig | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/codegen/x86_64/Emit.zig b/src/codegen/x86_64/Emit.zig
index 075648af1c4d4e65b5920acf3ee6b125daea7c48..9f12fb5ad081d977ed8ce834da71104670f2a1ae 100644
--- a/src/codegen/x86_64/Emit.zig
+++ b/src/codegen/x86_64/Emit.zig
@@ -850,8 +850,12 @@ fn encodeInst(emit: *Emit, lowered_inst: Instruction, reloc_info: []const RelocI
             emit.atom_id,
             end_offset - 4,
             target.symbol,
-            reloc.off,
-            .{ .X86_64 = .@"32S" },
+            if (emit.pic) reloc.off - 4 else reloc.off,
+            .{ .X86_64 = rt: {
+                if (!emit.pic) break :rt .@"32S";
+                if (target.is_extern and !target.force_pcrel_direct) break :rt .GOTPCREL;
+                break :rt .PC32;
+            } },
         ) else if (emit.bin_file.cast(.coff2)) |coff| try coff.addReloc(
             @enumFromInt(@intFromEnum(emit.atom_id)),
             end_offset - 4,
-- 
2.54.0