standalone: fix misaligned stack crash

jacobly0 · andrewrk · commit f81a721e4152 · 2025-09-20T18:33:01.000-07:00
diff --git a/test/standalone/stack_iterator/unwind_freestanding.zig b/test/standalone/stack_iterator/unwind_freestanding.zig
@@ -37,7 +37,7 @@ noinline fn frame0(expected: *[4]usize, unwound: *[4]usize) void {
 }
 
 // No-OS entrypoint
-export fn _start() callconv(.c) noreturn {
+export fn _start() callconv(.withStackAlign(.c, 1)) noreturn {
     var expected: [4]usize = undefined;
     var unwound: [4]usize = undefined;
     frame0(&expected, &unwound);

Original file line number	Diff line number	Diff line change
`@@ -37,7 +37,7 @@ noinline fn frame0(expected: [4]usize, unwound: [4]usize) void {`
`37`	`37`	`}`
`38`	`38`
`39`	`39`	`// No-OS entrypoint`
`40`		`-export fn _start() callconv(.c) noreturn {`
	`40`	`+export fn _start() callconv(.withStackAlign(.c, 1)) noreturn {`
`41`	`41`	`var expected: [4]usize = undefined;`
`42`	`42`	`var unwound: [4]usize = undefined;`
`43`	`43`	`frame0(&expected, &unwound);`