From ec184e90c15877a3e47ae23267cd3a260790a2f7 Mon Sep 17 00:00:00 2001
From: Jake Bailey <5341706+jakebailey@users.noreply.github.com>
Date: Wed, 8 Jul 2026 10:05:34 -0700
Subject: [PATCH] main_test: skip json on Cortex-M QEMU with Go 1.27

Go 1.27 jsonv2 pushes testdata/json.go beyond the LM3S6965 flash
budget. Keep coverage on larger emulated targets while skipping only the
too-small Cortex-M QEMU configuration.
---
 main_test.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/main_test.go b/main_test.go
index b7dfa6b0f..4316c2dae 100644
--- a/main_test.go
+++ b/main_test.go
@@ -273,6 +273,10 @@ func runPlatTests(options compileopts.Options, tests []string, t *testing.T) {
 	isWASI := strings.HasPrefix(options.Target, "wasi")
 	isWebAssembly := isWASI || strings.HasPrefix(options.Target, "wasm") || (options.Target == "" && strings.HasPrefix(options.GOARCH, "wasm"))
 	isBaremetal := options.Target == "simavr" || options.Target == "cortex-m-qemu" || options.Target == "riscv-qemu"
+	_, goMinor, err := goenv.GetGorootVersion()
+	if err != nil {
+		t.Fatal("could not get version:", goMinor)
+	}
 
 	for _, name := range tests {
 		if options.GOOS == "linux" && (options.GOARCH == "arm" || options.GOARCH == "386") {
@@ -296,6 +300,11 @@ func runPlatTests(options compileopts.Options, tests []string, t *testing.T) {
 				continue
 			}
 		}
+		if options.Target == "cortex-m-qemu" && goMinor >= 27 && name == "json.go" {
+			// Go 1.27 jsonv2 exceeds the LM3S6965's 256KiB flash. json.go
+			// is still covered by larger targets such as riscv-qemu.
+			continue
+		}
 		if options.Target == "simavr" {
 			// Not all tests are currently supported on AVR.
 			// Skip the ones that aren't.