linux/arch/mips/lib
Harvey Hunt 7b74228bb0 MIPS: lib: Mark intrinsics notrace
commit aedcfbe065 upstream.

On certain MIPS32 devices, the ftrace tracer "function_graph" uses
__lshrdi3() during the capturing of trace data. ftrace then attempts to
trace __lshrdi3() which leads to infinite recursion and a stack overflow.
Fix this by marking __lshrdi3() as notrace. Mark the other compiler
intrinsics as notrace in case the compiler decides to use them in the
ftrace path.

Signed-off-by: Harvey Hunt <harvey.hunt@imgtec.com>
Cc: <linux-mips@linux-mips.org>
Cc: <linux-kernel@vger.kernel.org>
Patchwork: https://patchwork.linux-mips.org/patch/13354/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-07 18:14:32 -07:00
..
ashldi3.c
ashrdi3.c
bitops.c
bswapdi.c
bswapsi.c
cmpdi2.c
csum_partial.S
delay.c
dump_tlb.c
iomap-pci.c
iomap.c
libgcc.h
lshrdi3.c
Makefile
memcpy.S
memset.S
mips-atomic.c
r3k_dump_tlb.c
strlen_user.S
strncpy_user.S
strnlen_user.S
ucmpdi2.c
uncached.c