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This is an incomplete proof of concept that I applied to be able to
build a 64 bit kernel with GCC-4.4. It doesn't handle the 32 bit case
or the R4000_WAR case.
Comments welcome.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
---
arch/mips/include/asm/compiler.h | 7 +++++++
2 files changed, 11 insertions(+), 0 deletions(-)
--- a/arch/mips/include/asm/compiler.h
+++ b/arch/mips/include/asm/compiler.h
@@ -16,4 +16,11 @@
#define GCC_REG_ACCUM "accum"
#endif
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
+#define GCC_NO_H_CONSTRAINT
+#ifdef CONFIG_64BIT
+typedef unsigned int uint128_t __attribute__((mode(TI)));
+#endif
+#endif
+
#endif /* _ASM_COMPILER_H */
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