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

MIPS: lib: Mark intrinsics notrace

2016-06-07 18:14:32 -07:00

ashrdi3.c

MIPS: lib: Mark intrinsics notrace

2016-06-07 18:14:32 -07:00

bitops.c

…

bswapdi.c

MIPS: lib: Mark intrinsics notrace

2016-06-07 18:14:32 -07:00

bswapsi.c

MIPS: lib: Mark intrinsics notrace

2016-06-07 18:14:32 -07:00

cmpdi2.c

MIPS: lib: Mark intrinsics notrace

2016-06-07 18:14:32 -07:00

csum_partial.S

MIPS: csum_partial: Improve instruction parallelism.

2015-04-01 17:22:11 +02:00

delay.c

MIPS: __delay ABI-dependent subtraction simplification

2014-05-30 21:01:08 +02:00

dump_tlb.c

MIPS: Rearrange ENTRYLO field definitions

2015-09-03 12:07:48 +02:00

iomap-pci.c

…

iomap.c

MIPS: iomap: Use __mem_{read,write}{b,w,l} for MMIO

2014-11-24 07:45:42 +01:00

libgcc.h

…

lshrdi3.c

MIPS: lib: Mark intrinsics notrace

2016-06-07 18:14:32 -07:00

Makefile

MIPS: Use ARCH_USE_BUILTIN_BSWAP.

2015-10-26 09:49:43 +01:00

memcpy.S

MIPS: lib: memcpy: Add MIPS R6 support

2015-02-17 15:37:29 +00:00

memset.S

MIPS: uaccess: Take EVA into account in [__]clear_user

2015-12-22 11:58:43 +01:00

mips-atomic.c

MIPS: asm: irqflags: Add MIPS R6 related definitions

2015-02-17 15:37:20 +00:00

r3k_dump_tlb.c

MIPS: Refactor dumping of TLB registers for r3k/r4k

2015-09-03 12:07:45 +02:00

strlen_user.S

MIPS: Remove __strlen_user().

2014-11-24 07:45:00 +01:00

strncpy_user.S

MIPS: __strncpy_from_user_asm CPU_DADDI_WORKAROUNDS bug fix

2014-05-13 00:29:38 +02:00

strnlen_user.S

MIPS: strnlen_user.S: Fix a CPU_DADDI_WORKAROUNDS regression

2015-05-29 20:23:58 +02:00

ucmpdi2.c

MIPS: lib: Mark intrinsics notrace

2016-06-07 18:14:32 -07:00

uncached.c

…