qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Qemu-devel] [PATCH v6 5/7] linux-user: Fix certain argument alignment c


From: Aleksandar Markovic
Subject: [Qemu-devel] [PATCH v6 5/7] linux-user: Fix certain argument alignment cases for Mips64
Date: Fri, 16 Sep 2016 13:14:07 +0200

From: Aleksandar Markovic <address@hidden>

The function that is changed in this patch is supposed to indicate that
there was certaing argument rearangement related to 64-bit arguments on
32-bit platforms. The background on such rearangements can be found,
for example, in the man page for syscall(2).

However, for 64-bit Mips architectures there is no such rearangement,
and this patch reflects it.

Signed-off-by: Aleksandar Rikalo <address@hidden>
Signed-off-by: Aleksandar Markovic <address@hidden>
---
 linux-user/syscall.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index ca06943..ee23b29 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -620,7 +620,14 @@ static inline int regpairs_aligned(void *cpu_env) {
     return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
 }
 #elif defined(TARGET_MIPS)
-static inline int regpairs_aligned(void *cpu_env) { return 1; }
+static inline int regpairs_aligned(void *cpu_env)
+{
+#if TARGET_ABI_BITS == 32
+    return 1;
+#else
+    return 0;
+#endif
+}
 #elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
 /* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
  * of registers which translates to the same as ARM/MIPS, because we start with
-- 
2.9.3




reply via email to

[Prev in Thread] Current Thread [Next in Thread]