zig

commit 328eb8ed8dfdc646df28f899267c76e18645da40 (tree)
parent 051620dcaf7df2f0dafb721a192dc5fb9f899987
Author: LemonBoy <thatlemon@gmail.com>
Date:   Sun, 19 Apr 2020 11:38:42 +0200

stage1: Fix signed multiplication overflow

Spotted thanks to UBSan

Diffstat:
M
src/glibc.cpp
 | 
6
+++---

1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/glibc.cpp b/src/glibc.cpp
@@ -362,9 +362,9 @@ Error glibc_build_dummies_and_maps(CodeGen *g, const ZigGLibCAbi *glibc_abi, con
 }
 
 uint32_t hash_glibc_target(const ZigTarget *x) {
-    return x->arch * 3250106448 +
-        x->os * 542534372 +
-        x->abi * 59162639;
+    return x->arch * (uint32_t)3250106448 +
+        x->os * (uint32_t)542534372 +
+        x->abi * (uint32_t)59162639;
 }
 
 bool eql_glibc_target(const ZigTarget *a, const ZigTarget *b) {