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[v4,19/19] linux-user: Add support for KCOV_INIT_TRACE ioctl

Message ID 1578757241-29583-20-git-send-email-aleksandar.markovic@rt-rk.com (mailing list archive)
State New, archived
Headers show
Series linux-user: Misc patches for 5.0 | expand

Commit Message

Aleksandar Markovic Jan. 11, 2020, 3:40 p.m. UTC 
From: Aleksandar Markovic <amarkovic@wavecomp.com>

KCOV_INIT_TRACE ioctl plays the role in kernel coverage tracing.
This ioctl's third argument is of type 'unsigned long', and the
implementation in QEMU is straightforward.

Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
---
 linux-user/ioctls.h       | 1 +
 linux-user/syscall_defs.h | 1 +
 2 files changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
index 39b3825..1da71dd 100644
--- a/linux-user/ioctls.h
+++ b/linux-user/ioctls.h
@@ -556,4 +556,5 @@ 
 #ifdef CONFIG_KCOV
   IOCTL(KCOV_ENABLE, 0, TYPE_NULL)
   IOCTL(KCOV_DISABLE, 0, TYPE_NULL)
+  IOCTL(KCOV_INIT_TRACE, IOC_R, TYPE_ULONG)
 #endif
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 87e390d..209c138 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -2460,6 +2460,7 @@  struct target_mtpos {
 /* kcov ioctls */
 #define TARGET_KCOV_ENABLE     TARGET_IO('c', 100)
 #define TARGET_KCOV_DISABLE    TARGET_IO('c', 101)
+#define TARGET_KCOV_INIT_TRACE TARGET_IOR('c', 1, abi_ulong)
 
 struct target_sysinfo {
     abi_long uptime;                /* Seconds since boot */