From e4a7b15852f1bfa9d4106164e5b7de0f1a877c3a Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Sat, 23 Aug 2025 13:48:10 -0700
Subject: [PATCH] disable stack tracing on powerpc64

tracked by #24970
---
 lib/std/debug.zig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/std/debug.zig b/lib/std/debug.zig
index dd307a0254..d0ec4db1d0 100644
--- a/lib/std/debug.zig
+++ b/lib/std/debug.zig
@@ -500,6 +500,11 @@ pub fn captureStackTrace(first_address: ?usize, stack_trace: *std.builtin.StackT
         // TODO: This should use the DWARF unwinder if .eh_frame_hdr is available (so that full debug info parsing isn't required).
         //       A new path for loading SelfInfo needs to be created which will only attempt to parse in-memory sections, because
         //       stopping to load other debug info (ie. source line info) from disk here is not required for unwinding.
+        if (builtin.cpu.arch == .powerpc64) {
+            // https://github.com/ziglang/zig/issues/24970
+            stack_trace.index = 0;
+            return;
+        }
         var it = StackIterator.init(first_address, null);
         defer it.deinit();
         for (stack_trace.instruction_addresses, 0..) |*addr, i| {