Commit 19e5e2ae authored Jun 26, 2019 by Guo Ren

csky: Fixup libgcc unwind error



The struct rt_sigframe is also defined in libgcc/config/csky/linux-unwind.h
of gcc. Although there is no use for the first three word space, we must
keep them the same with linux-unwind.h for member position.

The BUG is found in glibc test with the tst-cancel02.
The BUG is from commit:bf241682 of linux-5.2-rc1 merge window.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Signed-off-by: Mao Han <han_mao@c-sky.com>
Cc: Arnd Bergmann <arnd@arndb.de>

parent 9e0babf2

arch/csky/kernel/signal.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -39,6 +39,11 @@ static int save_fpu_state(struct sigcontext __user *sc)
		#endif

		struct rt_sigframe {
		/*
		* pad[3] is compatible with the same struct defined in
		* gcc/libgcc/config/csky/linux-unwind.h
		*/
		int pad[3];
		struct siginfo info;
		struct ucontext uc;
		};