* DPDK build for Arm with GCC 12
@ 2022-10-04 12:46 Thomas Monjalon
2022-10-06 6:14 ` [EXT] " Rahul Bhansali
0 siblings, 1 reply; 3+ messages in thread
From: Thomas Monjalon @ 2022-10-04 12:46 UTC (permalink / raw)
To: Rahul Bhansali, Akhil Goyal; +Cc: dev, ruifeng.wang, honnappa.nagarahalli
Hello,
GCC 12 suspects an out-of-bound write in NEON port_groupx4():
In file included from examples/ipsec-secgw/ipsec_neon.h:9,
from examples/ipsec-secgw/ipsec_lpm_neon.h:9,
from examples/ipsec-secgw/ipsec_worker.c:16:
examples/common/neon/port_group.h: In function 'port_groupx4':
examples/common/neon/port_group.h:42:21: error:
array subscript 'union <anonymous>[0]' is partly outside
array bounds of 'uint16_t[5]'
42 | pnum->u64 = gptbl[v].pnum;
| ^~
examples/common/neon/port_group.h:21:23: note:
object 'pn' of size [0, 10]
21 | port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp, uint16x8_t dp1,
| ~~~~~~~~~^~~~~~~~~~~~~~~
examples/common/neon/port_group.h:43:21: error:
array subscript 'union <anonymous>[0]' is partly outside
array bounds of 'uint16_t[5]'
43 | pnum->u16[FWDSTEP] = 1;
| ^~
examples/common/neon/port_group.h:21:23: note:
object 'pn' of size [0, 10]
21 | port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp, uint16x8_t dp1,
| ~~~~~~~~~^~~~~~~~~~~~~~~
Please could you help fixing it?
^ permalink raw reply [flat|nested] 3+ messages in thread* RE: [EXT] DPDK build for Arm with GCC 12
2022-10-04 12:46 DPDK build for Arm with GCC 12 Thomas Monjalon
@ 2022-10-06 6:14 ` Rahul Bhansali
2022-10-06 9:20 ` Thomas Monjalon
0 siblings, 1 reply; 3+ messages in thread
From: Rahul Bhansali @ 2022-10-06 6:14 UTC (permalink / raw)
To: Thomas Monjalon, Akhil Goyal, Amit Prakash Shukla
Cc: dev, ruifeng.wang, honnappa.nagarahalli
Hi Thomas,
> -----Original Message-----
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: Tuesday, October 4, 2022 6:17 PM
> To: Rahul Bhansali <rbhansali@marvell.com>; Akhil Goyal
> <gakhil@marvell.com>
> Cc: dev@dpdk.org; ruifeng.wang@arm.com; honnappa.nagarahalli@arm.com
> Subject: [EXT] DPDK build for Arm with GCC 12
>
> External Email
>
> ----------------------------------------------------------------------
> Hello,
>
> GCC 12 suspects an out-of-bound write in NEON port_groupx4():
>
> In file included from examples/ipsec-secgw/ipsec_neon.h:9,
> from examples/ipsec-secgw/ipsec_lpm_neon.h:9,
> from examples/ipsec-secgw/ipsec_worker.c:16:
> examples/common/neon/port_group.h: In function 'port_groupx4':
> examples/common/neon/port_group.h:42:21: error:
> array subscript 'union <anonymous>[0]' is partly outside
> array bounds of 'uint16_t[5]'
> 42 | pnum->u64 = gptbl[v].pnum;
> | ^~
> examples/common/neon/port_group.h:21:23: note:
> object 'pn' of size [0, 10]
> 21 | port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp, uint16x8_t dp1,
> | ~~~~~~~~~^~~~~~~~~~~~~~~
> examples/common/neon/port_group.h:43:21: error:
> array subscript 'union <anonymous>[0]' is partly outside
> array bounds of 'uint16_t[5]'
> 43 | pnum->u16[FWDSTEP] = 1;
> | ^~
> examples/common/neon/port_group.h:21:23: note:
> object 'pn' of size [0, 10]
> 21 | port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp, uint16x8_t dp1,
> | ~~~~~~~~~^~~~~~~~~~~~~~~
>
> Please could you help fixing it?
This is already addressed in http://patches.dpdk.org/project/dpdk/patch/20220902074337.3129786-1-amitprakashs@marvell.com/ by @Amit Prakash Shukla .
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [EXT] DPDK build for Arm with GCC 12
2022-10-06 6:14 ` [EXT] " Rahul Bhansali
@ 2022-10-06 9:20 ` Thomas Monjalon
0 siblings, 0 replies; 3+ messages in thread
From: Thomas Monjalon @ 2022-10-06 9:20 UTC (permalink / raw)
To: Akhil Goyal, Amit Prakash Shukla
Cc: dev, ruifeng.wang, honnappa.nagarahalli, Rahul Bhansali
06/10/2022 08:14, Rahul Bhansali:
> Hi Thomas,
>
> > -----Original Message-----
> > From: Thomas Monjalon <thomas@monjalon.net>
> > Sent: Tuesday, October 4, 2022 6:17 PM
> > To: Rahul Bhansali <rbhansali@marvell.com>; Akhil Goyal
> > <gakhil@marvell.com>
> > Cc: dev@dpdk.org; ruifeng.wang@arm.com; honnappa.nagarahalli@arm.com
> > Subject: [EXT] DPDK build for Arm with GCC 12
> >
> > External Email
> >
> > ----------------------------------------------------------------------
> > Hello,
> >
> > GCC 12 suspects an out-of-bound write in NEON port_groupx4():
> >
> > In file included from examples/ipsec-secgw/ipsec_neon.h:9,
> > from examples/ipsec-secgw/ipsec_lpm_neon.h:9,
> > from examples/ipsec-secgw/ipsec_worker.c:16:
> > examples/common/neon/port_group.h: In function 'port_groupx4':
> > examples/common/neon/port_group.h:42:21: error:
> > array subscript 'union <anonymous>[0]' is partly outside
> > array bounds of 'uint16_t[5]'
> > 42 | pnum->u64 = gptbl[v].pnum;
> > | ^~
> > examples/common/neon/port_group.h:21:23: note:
> > object 'pn' of size [0, 10]
> > 21 | port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp, uint16x8_t dp1,
> > | ~~~~~~~~~^~~~~~~~~~~~~~~
> > examples/common/neon/port_group.h:43:21: error:
> > array subscript 'union <anonymous>[0]' is partly outside
> > array bounds of 'uint16_t[5]'
> > 43 | pnum->u16[FWDSTEP] = 1;
> > | ^~
> > examples/common/neon/port_group.h:21:23: note:
> > object 'pn' of size [0, 10]
> > 21 | port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp, uint16x8_t dp1,
> > | ~~~~~~~~~^~~~~~~~~~~~~~~
> >
> > Please could you help fixing it?
> This is already addressed in http://patches.dpdk.org/project/dpdk/patch/20220902074337.3129786-1-amitprakashs@marvell.com/ by @Amit Prakash Shukla .
Yes thank you.
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