| Message ID | 1578947683-21011-20-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 |
Le 13/01/2020 à 21:34, Aleksandar Markovic a écrit : > From: Aleksandar Markovic <amarkovic@wavecomp.com> > > KCOV_ENABLE and KCOV_DISABLE play the role in kernel coverage > tracing. These ioctls do not use the third argument of ioctl() > system call and are straightforward to implement in QEMU. > > Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> > --- > linux-user/ioctls.h | 5 +++++ > linux-user/syscall.c | 3 +++ > linux-user/syscall_defs.h | 4 ++++ > 3 files changed, 12 insertions(+) > > diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h > index d72cd76..39b3825 100644 > --- a/linux-user/ioctls.h > +++ b/linux-user/ioctls.h > @@ -552,3 +552,8 @@ > IOCTL_IGNORE(TIOCSTART) > IOCTL_IGNORE(TIOCSTOP) > #endif > + > +#ifdef CONFIG_KCOV > + IOCTL(KCOV_ENABLE, 0, TYPE_NULL) > + IOCTL(KCOV_DISABLE, 0, TYPE_NULL) > +#endif > diff --git a/linux-user/syscall.c b/linux-user/syscall.c > index 171c0ca..6edcb0d 100644 > --- a/linux-user/syscall.c > +++ b/linux-user/syscall.c > @@ -73,6 +73,9 @@ > #ifdef CONFIG_SENDFILE > #include <sys/sendfile.h> > #endif > +#ifdef CONFIG_KCOV > +#include <sys/kcov.h> > +#endif > > #define termios host_termios > #define winsize host_winsize > diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h > index 225dcfb..87e390d 100644 > --- a/linux-user/syscall_defs.h > +++ b/linux-user/syscall_defs.h > @@ -2457,6 +2457,10 @@ struct target_mtpos { > #define TARGET_MTIOCGET TARGET_IOR('m', 2, struct target_mtget) > #define TARGET_MTIOCPOS TARGET_IOR('m', 3, struct target_mtpos) > > +/* kcov ioctls */ > +#define TARGET_KCOV_ENABLE TARGET_IO('c', 100) > +#define TARGET_KCOV_DISABLE TARGET_IO('c', 101) > + > struct target_sysinfo { > abi_long uptime; /* Seconds since boot */ > abi_ulong loads[3]; /* 1, 5, and 15 minute load averages */ > Reviewed-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h index d72cd76..39b3825 100644 --- a/linux-user/ioctls.h +++ b/linux-user/ioctls.h @@ -552,3 +552,8 @@ IOCTL_IGNORE(TIOCSTART) IOCTL_IGNORE(TIOCSTOP) #endif + +#ifdef CONFIG_KCOV + IOCTL(KCOV_ENABLE, 0, TYPE_NULL) + IOCTL(KCOV_DISABLE, 0, TYPE_NULL) +#endif diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 171c0ca..6edcb0d 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -73,6 +73,9 @@ #ifdef CONFIG_SENDFILE #include <sys/sendfile.h> #endif +#ifdef CONFIG_KCOV +#include <sys/kcov.h> +#endif #define termios host_termios #define winsize host_winsize diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 225dcfb..87e390d 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -2457,6 +2457,10 @@ struct target_mtpos { #define TARGET_MTIOCGET TARGET_IOR('m', 2, struct target_mtget) #define TARGET_MTIOCPOS TARGET_IOR('m', 3, struct target_mtpos) +/* kcov ioctls */ +#define TARGET_KCOV_ENABLE TARGET_IO('c', 100) +#define TARGET_KCOV_DISABLE TARGET_IO('c', 101) + struct target_sysinfo { abi_long uptime; /* Seconds since boot */ abi_ulong loads[3]; /* 1, 5, and 15 minute load averages */