signal/signalfd: Add support for SIGSYS
I don't know why signalfd has never grown support for SIGSYS but grow it now.
This corrects an oversight and removes a need for a default in the
switch statement. Allowing gcc to warn when future members are added
to the enum siginfo_layout, and signalfd does not handle them.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 31e9602..f652249 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -134,7 +134,6 @@
new.ssi_stime = kinfo->si_stime;
break;
case SIL_RT:
- default:
/*
* This case catches also the signals queued by sigqueue().
*/
@@ -143,6 +142,11 @@
new.ssi_ptr = (long) kinfo->si_ptr;
new.ssi_int = kinfo->si_int;
break;
+ case SIL_SYS:
+ new.ssi_call_addr = (long) kinfo->si_call_addr;
+ new.ssi_syscall = kinfo->si_syscall;
+ new.ssi_arch = kinfo->si_arch;
+ break;
}
if (copy_to_user(uinfo, &new, sizeof(struct signalfd_siginfo)))
diff --git a/include/uapi/linux/signalfd.h b/include/uapi/linux/signalfd.h
index 6f0da42..83429a0 100644
--- a/include/uapi/linux/signalfd.h
+++ b/include/uapi/linux/signalfd.h
@@ -35,6 +35,10 @@
__u64 ssi_stime;
__u64 ssi_addr;
__u16 ssi_addr_lsb;
+ __u16 __pad2;
+ __s32 ssi_syscall;
+ __u64 ssi_call_addr;
+ __u32 ssi_arch;
/*
* Pad strcture to 128 bytes. Remember to update the
@@ -45,7 +49,7 @@
* comes out of a read(2) and we really don't want to have
* a compat on read(2).
*/
- __u8 __pad[46];
+ __u8 __pad[28];
};