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authorLen Brown <len.brown@intel.com>2012-04-06 21:48:59 -0400
committerLen Brown <len.brown@intel.com>2012-04-06 21:48:59 -0400
commiteeaab2d8af2cf1d36d7086f22e9de42d6dd2995c (patch)
tree369b9c91a6d808944f07d2290fec6f9fe2731904 /arch/arm/include/asm/compiler.h
parentee01e663373343c63e0e3d364d09f6155378dbcc (diff)
parentaaef292acf3a78d9c0bb6fb72226077d286b45d7 (diff)
Merge branches 'idle-fix' and 'misc' into release
Diffstat (limited to 'arch/arm/include/asm/compiler.h')
-rw-r--r--arch/arm/include/asm/compiler.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/include/asm/compiler.h b/arch/arm/include/asm/compiler.h
new file mode 100644
index 000000000000..8155db2f7fa1
--- /dev/null
+++ b/arch/arm/include/asm/compiler.h
@@ -0,0 +1,15 @@
+#ifndef __ASM_ARM_COMPILER_H
+#define __ASM_ARM_COMPILER_H
+
+/*
+ * This is used to ensure the compiler did actually allocate the register we
+ * asked it for some inline assembly sequences. Apparently we can't trust
+ * the compiler from one version to another so a bit of paranoia won't hurt.
+ * This string is meant to be concatenated with the inline asm string and
+ * will cause compilation to stop on mismatch.
+ * (for details, see gcc PR 15089)
+ */
+#define __asmeq(x, y) ".ifnc " x "," y " ; .err ; .endif\n\t"
+
+
+#endif /* __ASM_ARM_COMPILER_H */