sylveos

commit f6c8030703bc450e08c8d1400d8e55163b9b2f8d
parent 8a30a0f082ffa8572bfc8a1e130748b13d021134
Author: Sylvia Ivory <git@sivory.net>
Date:   Thu, 15 Jan 2026 20:02:31 -0800

Ensure GPIO panic is propagated

Diffstat:
M
fake-pi/root.zig
 | 
6
++++++
M
src/test-runner.zig
 | 
20
++++++++++++++------

2 files changed, 20 insertions(+), 6 deletions(-)
diff --git a/fake-pi/root.zig b/fake-pi/root.zig
@@ -91,3 +91,9 @@ export fn nop() void {}
 export fn delay_cycles(cycles: u32) void {
     trace("delaying {} cycles\n", .{cycles});
 }
+
+export fn gpio_panic_simple(pin: u8) void {
+    writer.print("GPIO_PANIC: illegal pin {}\n", .{pin}) catch |e| {
+        std.log.err("gpio_panic() -> {t}", .{e});
+    };
+}
diff --git a/src/test-runner.zig b/src/test-runner.zig
@@ -15,25 +15,33 @@ export fn output(format: [*:0]const u8, ...) u32 {
     return 0;
 }
 
+extern fn gpio_panic_simple(pin: u8) void;
+
+fn gpio_panic(pin: u8) noreturn {
+    // only 1 error code
+    gpio_panic_simple(pin);
+    std.process.exit(1);
+}
+
 export fn gpio_read(pin: u8) bool {
-    return gpio.read(pin) catch false;
+    return gpio.read(pin) catch gpio_panic(pin);
 }
 export fn gpio_write(pin: u8, state: bool) void {
-    gpio.write(pin, state) catch {};
+    gpio.write(pin, state) catch gpio_panic(pin);
 }
 
 export fn gpio_set_on(pin: u8) void {
-    gpio.set_on(pin) catch {};
+    gpio.set_on(pin) catch gpio_panic(pin);
 }
 export fn gpio_set_off(pin: u8) void {
-    gpio.set_off(pin) catch {};
+    gpio.set_off(pin) catch gpio_panic(pin);
 }
 
 export fn gpio_set_input(pin: u8) void {
-    gpio.set_input(pin) catch {};
+    gpio.set_input(pin) catch gpio_panic(pin);
 }
 export fn gpio_set_output(pin: u8) void {
-    gpio.set_output(pin) catch {};
+    gpio.set_output(pin) catch gpio_panic(pin);
 }
 
 pub fn kmain() void {