Changeset 82474ef in mainline for kernel/arch/amd64/include/asm.h

Timestamp:

2010-02-03T12:45:26Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade

Children:

210e50a

Parents:

c1d3549

Message:

improve the GCC contract of halt(), make it explicitly noreturn

File:

• kernel/arch/amd64/include/asm.h (modified) (1 diff)

kernel/arch/amd64/include/asm.h

@@ -68 +68 @@
 }
 
-static inline void cpu_halt(void)
-{
-        asm volatile (
-                "0:\n"
-                "       hlt\n"
-                "       jmp 0b\n"
-        );
+static inline void __attribute__((noreturn)) cpu_halt(void)
+{
+        while (true) {
+                asm volatile (
+                        "hlt\n"
+                );
+        }
 }