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[Qemu-devel] [PATCH] Add fadvise64 stubs
From: |
Kirill A. Shutemov |
Subject: |
[Qemu-devel] [PATCH] Add fadvise64 stubs |
Date: |
Sat, 20 Sep 2008 21:51:31 +0300 |
Since these are only hints, we happily fake them for now
to make applications not barf on ENOSYS.
Signed-off-by: Riku Voipio <address@hidden>
Signed-off-by: Kirill A. Shutemov <address@hidden>
---
linux-user/syscall.c | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 489f632..f9aab47 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5572,6 +5572,27 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
arg1,
case TARGET_NR_mincore:
goto unimplemented;
#endif
+#ifdef TARGET_NR_arm_fadvise64_64
+ case TARGET_NR_arm_fadvise64_64:
+ {
+ /*
+ * arm_fadvise64_64 looks like fadvise64_64 but
+ * with different argument order
+ */
+ abi_long temp;
+ temp = arg3;
+ arg3 = arg4;
+ arg4 = temp;
+ }
+#endif
+#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64)
+#ifdef TARGET_NR_fadvise64_64
+ case TARGET_NR_fadvise64_64:
+#endif
+ /* This is a hint, so ignoring and returning success is ok. */
+ ret = get_errno(0);
+ break;
+#endif
#ifdef TARGET_NR_madvise
case TARGET_NR_madvise:
/* A straight passthrough may not be safe because qemu sometimes
--
1.5.6.5.GIT