Adding RSI, RDI, ECX as clobbers does not work. But marking them RW does.
https://github.com/brho/akaros/compare/master...dlibenzi:gcc_fuggetaboud_ecx_v2 The following changes since commit 2fa42319139e4cc5ca853546363f84443d0ead00: Rename 'reallocarray' to 'kreallocarray'. (2015-11-25 18:02:04 -0500) are available in the git repository at: [email protected]:dlibenzi/akaros gcc_fuggetaboud_ecx_v2 for you to fetch changes up to 3d4a4ec56106e29a31265eed30db6d77cf0bfc53: Flags RSI, RDI, ECX as RW operands so that GCC does not assume const (2015-12-09 19:55:47 -0800) ---------------------------------------------------------------- Davide Libenzi (1): Flags RSI, RDI, ECX as RW operands so that GCC does not assume const kern/arch/x86/uaccess.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kern/arch/x86/uaccess.h b/kern/arch/x86/uaccess.h index cba0ef5..f8edaf4 100644 --- a/kern/arch/x86/uaccess.h +++ b/kern/arch/x86/uaccess.h @@ -101,8 +101,8 @@ struct extable_ip_fixup { " jmp 2b\n" \ ".previous\n" \ _ASM_EXTABLE(1b, 3b) \ - : "=r"(err) \ - : "D" (dst), "S" (src), "c" (count), "i" (errret), "0" (err) \ + : "=r"(err), "+D" (dst), "+S" (src), "+c" (count) \ + : "i" (errret), "0" (err) \ : "memory") static inline int __put_user(void *dst, const void *src, unsigned int count) -- You received this message because you are subscribed to the Google Groups "Akaros" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
