linux-kernel - Re: [PATCH v2] blackfin: Wire up missing syscalls

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Date:	Tue, 12 May 2015 19:53:23 +0800
From:	Chen Gang <xili_gchen_5257@...mail.com>
To:	Steven Miao <realmz6@...il.com>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Richard Weinberger <richard.weinberger@...il.com>,
	"adi-buildroot-devel@...ts.sourceforge.net" 
	<adi-buildroot-devel@...ts.sourceforge.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] blackfin: Wire up missing syscalls

On 04/22/2015 03:01 PM, Steven Miao wrote:
> Applied. Thanks.
> 

Thank you for your work.

In next tree 20150511, it only has one applier (me), I guess we need
additional appliers (e.g. you), please help check. The related commit
is: "4f650a5 blackfin: Wire up missing syscalls"

Thanks.

> On Mon, Apr 13, 2015 at 10:02 PM, Chen Gang <xili_gchen_5257@...mail.com> wrote:
>> The related syscalls are below which may cause samples/kdbus building
>> break in next-20150401 tree, the related information and error:
>>
>>     CALL    scripts/checksyscalls.sh
>>   <stdin>:1223:2: warning: #warning syscall kcmp not implemented [-Wcpp]
>>   <stdin>:1226:2: warning: #warning syscall finit_module not implemented [-Wcpp]
>>   <stdin>:1229:2: warning: #warning syscall sched_setattr not implemented [-Wcpp]
>>   <stdin>:1232:2: warning: #warning syscall sched_getattr not implemented [-Wcpp]
>>   <stdin>:1235:2: warning: #warning syscall renameat2 not implemented [-Wcpp]
>>   <stdin>:1238:2: warning: #warning syscall seccomp not implemented [-Wcpp]
>>   <stdin>:1241:2: warning: #warning syscall getrandom not implemented [-Wcpp]
>>   <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp]
>>   <stdin>:1247:2: warning: #warning syscall bpf not implemented [-Wcpp]
>>   <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp]
>>   [...]
>>     HOSTCC  samples/kdbus/kdbus-workers
>>   samples/kdbus/kdbus-workers.c: In function ‘prime_new’:
>>   samples/kdbus/kdbus-workers.c:930:18: error: ‘__NR_memfd_create’ undeclared (first use in this function)
>>     p->fd = syscall(__NR_memfd_create, "prime-area", MFD_CLOEXEC);
>>                     ^
>>   samples/kdbus/kdbus-workers.c:930:18: note: each undeclared identifier is reported only once for each function it appears in
>>
>> Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
>> ---
>>  arch/blackfin/include/uapi/asm/unistd.h | 12 +++++++++++-
>>  arch/blackfin/mach-common/entry.S       | 10 ++++++++++
>>  2 files changed, 21 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/blackfin/include/uapi/asm/unistd.h b/arch/blackfin/include/uapi/asm/unistd.h
>> index a451164..0cb9078 100644
>> --- a/arch/blackfin/include/uapi/asm/unistd.h
>> +++ b/arch/blackfin/include/uapi/asm/unistd.h
>> @@ -401,8 +401,18 @@
>>  #define __NR_sendmmsg          380
>>  #define __NR_process_vm_readv  381
>>  #define __NR_process_vm_writev 382
>> +#define __NR_kcmp              383
>> +#define __NR_finit_module      384
>> +#define __NR_sched_setattr     385
>> +#define __NR_sched_getattr     386
>> +#define __NR_renameat2         387
>> +#define __NR_seccomp           388
>> +#define __NR_getrandom         389
>> +#define __NR_memfd_create      390
>> +#define __NR_bpf               391
>> +#define __NR_execveat          392
>>
>> -#define __NR_syscall           383
>> +#define __NR_syscall           393  /* For internal using, not implemented */
>>  #define NR_syscalls            __NR_syscall
>>
>>  /* Old optional stuff no one actually uses */
>> diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
>> index 86b5a09..8d9431e 100644
>> --- a/arch/blackfin/mach-common/entry.S
>> +++ b/arch/blackfin/mach-common/entry.S
>> @@ -1694,6 +1694,16 @@ ENTRY(_sys_call_table)
>>         .long _sys_sendmmsg             /* 380 */
>>         .long _sys_process_vm_readv
>>         .long _sys_process_vm_writev
>> +       .long _sys_kcmp
>> +       .long _sys_finit_module
>> +       .long _sys_sched_setattr        /* 385 */
>> +       .long _sys_sched_getattr
>> +       .long _sys_renameat2
>> +       .long _sys_seccomp
>> +       .long _sys_getrandom
>> +       .long _sys_memfd_create         /* 390 */
>> +       .long _sys_bpf
>> +       .long _sys_execveat
>>
>>         .rept NR_syscalls-(.-_sys_call_table)/4
>>         .long _sys_ni_syscall
>> --
>> 1.9.3

-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed
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