Skip over MAP_STACK check for MacOS

saethlin · saethlin · commit 19c04198bd90 · 2022-09-15T18:51:43.000-04:00
diff --git a/src/shims/unix/mem.rs b/src/shims/unix/mem.rs
@@ -37,8 +37,11 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
             throw_unsup_format!("Miri does not support MAP_SHARED or MAP_SHARED_VALIDATE");
         }
 
-        if flags & this.eval_libc_i32("MAP_STACK")? > 0 {
-            throw_unsup_format!("Miri does not support MAP_STACK");
+        // MacOS does not have MAP_STACK
+        if this.tcx.sess.target.os != "macos" {
+            if flags & this.eval_libc_i32("MAP_STACK")? > 0 {
+                throw_unsup_format!("Miri does not support MAP_STACK");
+            }
         }
 
         if prot & this.eval_libc_i32("PROT_EXEC")? > 0 {

Original file line number	Diff line number	Diff line change
`@@ -37,8 +37,11 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx`
`37`	`37`	`throw_unsup_format!("Miri does not support MAP_SHARED or MAP_SHARED_VALIDATE");`
`38`	`38`	`}`
`39`	`39`
`40`		`- if flags & this.eval_libc_i32("MAP_STACK")? > 0 {`
`41`		`- throw_unsup_format!("Miri does not support MAP_STACK");`
	`40`	`+ // MacOS does not have MAP_STACK`
	`41`	`+ if this.tcx.sess.target.os != "macos" {`
	`42`	`+ if flags & this.eval_libc_i32("MAP_STACK")? > 0 {`
	`43`	`+ throw_unsup_format!("Miri does not support MAP_STACK");`
	`44`	`+ }`
`42`	`45`	`}`
`43`	`46`
`44`	`47`	`if prot & this.eval_libc_i32("PROT_EXEC")? > 0 {`