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[Qemu-devel] [PATCH v5 5/5] linux-user: Fix certain argument alignment c
From: |
Aleksandar Markovic |
Subject: |
[Qemu-devel] [PATCH v5 5/5] linux-user: Fix certain argument alignment cases for Mips64 |
Date: |
Mon, 12 Sep 2016 21:40:04 +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