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* [Qemu-devel] [PATCH] Add mincore syscall
@ 2008-09-19 13:33 Riku Voipio
  2008-09-19 14:06 ` Kirill A. Shutemov
  2008-10-01 21:49 ` Aurelien Jarno
  0 siblings, 2 replies; 4+ messages in thread
From: Riku Voipio @ 2008-09-19 13:33 UTC (permalink / raw)
  To: qemu-devel


Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
---
 linux-user/syscall.c |   14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 8e6e735..cb75c94 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5574,7 +5574,19 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
         goto unimplemented;
 #ifdef TARGET_NR_mincore
     case TARGET_NR_mincore:
-        goto unimplemented;
+        {
+            void *a;
+            ret = -TARGET_EFAULT;
+            if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
+                goto efault;
+            if (!(p = lock_user_string(arg3)))
+                goto mincore_fail;
+            ret = get_errno(mincore(a, arg2, p));
+            unlock_user(p, arg3, ret);
+            mincore_fail:
+            unlock_user(a, arg1, 0);
+        }
+        break;
 #endif
 #ifdef TARGET_NR_fadvise64_64
      case TARGET_NR_fadvise64_64:
-- 
1.5.6.5


-- 
"rm -rf" only sounds scary if you don't have backups

^ permalink raw reply related	[flat|nested] 4+ messages in thread
* [Qemu-devel] [PATCH] Add fadvise64 stubs
@ 2008-10-01 13:56 Kirill A. Shutemov
  2008-10-01 13:56 ` [Qemu-devel] [PATCH] Add mincore syscall Kirill A. Shutemov
  0 siblings, 1 reply; 4+ messages in thread
From: Kirill A. Shutemov @ 2008-10-01 13:56 UTC (permalink / raw)
  To: qemu-devel; +Cc: Kirill A. Shutemov, Riku Voipio

Since these are only hints, we happily fake them for now
to make applications not barf on ENOSYS.

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
---
 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 40c0ed8..4695416 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5578,6 +5578,27 @@ 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

^ permalink raw reply related	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2008-10-01 21:50 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-09-19 13:33 [Qemu-devel] [PATCH] Add mincore syscall Riku Voipio
2008-09-19 14:06 ` Kirill A. Shutemov
2008-10-01 21:49 ` Aurelien Jarno
  -- strict thread matches above, loose matches on Subject: below --
2008-10-01 13:56 [Qemu-devel] [PATCH] Add fadvise64 stubs Kirill A. Shutemov
2008-10-01 13:56 ` [Qemu-devel] [PATCH] Add mincore syscall Kirill A. Shutemov

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