From 6ff56d6420093ee8f95c75019557dc8bcec32ed7 Mon Sep 17 00:00:00 2001
From: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Date: Mon, 6 May 2024 09:05:16 -0300
Subject: [PATCH] runtime: cleanup crashstack code

This patch removes redundant guards for the crash stack feature, as all
supported Go architectures now have a crash stack implementation.
---
 src/runtime/asm.s   | 31 -------------------------------
 src/runtime/proc.go |  2 +-
 2 files changed, 1 insertion(+), 32 deletions(-)

diff --git a/src/runtime/asm.s b/src/runtime/asm.s
index b4bcb04cd1..f487e44100 100644
--- a/src/runtime/asm.s
+++ b/src/runtime/asm.s
@@ -13,34 +13,3 @@ TEXT ·sigpanic0(SB),NOSPLIT,$0-0
 TEXT ·mapinitnoop<ABIInternal>(SB),NOSPLIT,$0-0
 	RET
 
-#ifndef GOARCH_386
-#ifndef GOARCH_arm
-#ifndef GOARCH_amd64
-#ifndef GOARCH_arm64
-#ifndef GOARCH_loong64
-#ifndef GOARCH_mips
-#ifndef GOARCH_mipsle
-#ifndef GOARCH_mips64
-#ifndef GOARCH_mips64le
-#ifndef GOARCH_ppc64
-#ifndef GOARCH_ppc64le
-#ifndef GOARCH_riscv64
-#ifndef GOARCH_s390x
-#ifndef GOARCH_wasm
-// stub to appease shared build mode.
-TEXT ·switchToCrashStack0<ABIInternal>(SB),NOSPLIT,$0-0
-	UNDEF
-#endif
-#endif
-#endif
-#endif
-#endif
-#endif
-#endif
-#endif
-#endif
-#endif
-#endif
-#endif
-#endif
-#endif
diff --git a/src/runtime/proc.go b/src/runtime/proc.go
index 387c4598bb..40064dd042 100644
--- a/src/runtime/proc.go
+++ b/src/runtime/proc.go
@@ -578,7 +578,7 @@ func switchToCrashStack(fn func()) {
 // Disable crash stack on Windows for now. Apparently, throwing an exception
 // on a non-system-allocated crash stack causes EXCEPTION_STACK_OVERFLOW and
 // hangs the process (see issue 63938).
-const crashStackImplemented = (GOARCH == "386" || GOARCH == "amd64" || GOARCH == "arm" || GOARCH == "arm64" || GOARCH == "loong64" || GOARCH == "mips" || GOARCH == "mipsle" || GOARCH == "mips64" || GOARCH == "mips64le" || GOARCH == "ppc64" || GOARCH == "ppc64le" || GOARCH == "riscv64" || GOARCH == "s390x" || GOARCH == "wasm") && GOOS != "windows"
+const crashStackImplemented = GOOS != "windows"
 
 //go:noescape
 func switchToCrashStack0(fn func()) // in assembly