From d7daf7c203f583ed440efc68df6ee690ee8f8f32 Mon Sep 17 00:00:00 2001
From: Jacob Young <jacobly0@users.noreply.github.com>
Date: Sun, 13 Aug 2023 05:55:00 -0400
Subject: start: workaround for LLVM 17 regression

Tracking issue #16799
---
 lib/std/start.zig | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'lib/std')

diff --git a/lib/std/start.zig b/lib/std/start.zig
index d2099ca803..36379960a4 100644
--- a/lib/std/start.zig
+++ b/lib/std/start.zig
@@ -240,6 +240,14 @@ fn _start() callconv(.Naked) noreturn {
             : [tos] "={rax}" (-> *std.os.plan9.Tos),
         );
     }
+    switch (native_arch) {
+        // https://github.com/ziglang/zig/issues/16799
+        .riscv64 => @export(argc_argv_ptr, .{
+            .name = "__zig_argc_argv_ptr",
+            .visibility = .hidden,
+        }),
+        else => {},
+    }
     asm volatile (switch (native_arch) {
             .x86_64 =>
             \\ xorl %%ebp, %%ebp
@@ -270,7 +278,8 @@ fn _start() callconv(.Naked) noreturn {
             .riscv64 =>
             \\ li s0, 0
             \\ li ra, 0
-            \\ sd sp, %[argc_argv_ptr]
+            \\ lui a0, %hi(__zig_argc_argv_ptr)
+            \\ sd sp, %lo(__zig_argc_argv_ptr)(a0)
             \\ andi sp, sp, -16
             \\ tail %[posixCallMainAndExit]@plt
             ,
-- 
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