From: "Dmitry V. Levin" <ldv@altlinux.org>
To: Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>
Cc: Andy Lutomirski <luto@kernel.org>,
Oleg Nesterov <oleg@redhat.com>,
Elvira Khabirova <lineprinter@altlinux.org>,
Eugene Syromyatnikov <esyr@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v7 21/22] ptrace: add PTRACE_GET_SYSCALL_INFO request
Date: Mon, 7 Jan 2019 17:58:09 +0300 [thread overview]
Message-ID: <20190107145809.GA10203@altlinux.org> (raw)
In-Reply-To: <201901071534.VEFsJa9w%fengguang.wu@intel.com>
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Hi,
Looks like we need help to overcome this alpha specific issue:
On Mon, Jan 07, 2019 at 03:05:23PM +0800, kbuild test robot wrote:
> Hi Elvira,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on linus/master]
> [also build test ERROR on v5.0-rc1]
> [cannot apply to next-20190103]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url: https://github.com/0day-ci/linux/commits/Dmitry-V-Levin/asm-generic-syscall-h-prepare-for-inclusion-by-other-files/20190107-115241
> config: alpha-allmodconfig (attached as .config)
> compiler: alpha-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # save the attached .config to linux build tree
> GCC_VERSION=7.2.0 make.cross ARCH=alpha
>
> All errors (new ones prefixed by >>):
>
> kernel/ptrace.c: In function 'ptrace_get_syscall_info':
> >> kernel/ptrace.c:944:20: error: implicit declaration of function 'user_stack_pointer'; did you mean 'xa_tag_pointer'? [-Werror=implicit-function-declaration]
> .stack_pointer = user_stack_pointer(regs),
> ^~~~~~~~~~~~~~~~~~
> xa_tag_pointer
> In file included from arch/alpha/include/asm/syscall.h:6:0,
> from include/linux/audit.h:214,
> from kernel/ptrace.c:24:
The mandatory function
static inline unsigned long user_stack_pointer(struct pt_regs *regs)
is not implemented on alpha, and I don't know how to implement it because
the relevant information is not available via struct pt_regs.
On alpha
task_thread_info(task)->pcb.usp
is used to obtain the user stack pointer.
--
ldv
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next prev parent reply other threads:[~2019-01-07 14:58 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190107025101.GA1182@altlinux.org>
2019-01-07 2:52 ` [PATCH v7 01/22] asm-generic/syscall.h: prepare for inclusion by other files Dmitry V. Levin
2019-01-07 2:52 ` [PATCH v7 02/22] asm-generic/syscall.h: turn syscall_[gs]et_arguments into wrappers Dmitry V. Levin
2019-01-07 2:52 ` [PATCH v7 03/22] alpha: define remaining syscall_get_* functions Dmitry V. Levin
2019-01-07 7:25 ` kbuild test robot
2019-01-07 2:53 ` [PATCH v7 04/22] Move EM_ARCOMPACT and EM_ARCV2 to uapi/linux/elf-em.h Dmitry V. Levin
2019-01-07 2:53 ` [PATCH v7 05/22] arc: define syscall_get_arch() Dmitry V. Levin
2019-01-07 2:53 ` [PATCH v7 06/22] c6x: " Dmitry V. Levin
2019-01-07 2:53 ` [PATCH v7 07/22] h8300: define remaining syscall_get_* functions Dmitry V. Levin
2019-01-07 2:53 ` [PATCH v7 08/22] Move EM_HEXAGON to uapi/linux/elf-em.h Dmitry V. Levin
2019-01-07 2:53 ` [PATCH v7 09/22] hexagon: define remaining syscall_get_* functions Dmitry V. Levin
2019-01-07 2:53 ` [PATCH v7 10/22] Move EM_NDS32 to uapi/linux/elf-em.h Dmitry V. Levin
2019-01-07 2:53 ` [PATCH v7 11/22] nds32: define syscall_get_arch() Dmitry V. Levin
2019-01-07 2:53 ` [PATCH v7 12/22] nios2: " Dmitry V. Levin
2019-01-07 2:54 ` [PATCH v7 13/22] m68k: add asm/syscall.h Dmitry V. Levin
2019-01-07 2:54 ` [PATCH v7 14/22] mips: define syscall_get_error() Dmitry V. Levin
2019-01-07 2:54 ` [PATCH v7 15/22] parisc: " Dmitry V. Levin
2019-02-28 19:38 ` Dmitry V. Levin
2019-02-28 21:39 ` Helge Deller
2019-01-07 2:54 ` [PATCH v7 16/22] powerpc: " Dmitry V. Levin
2019-02-28 19:39 ` Dmitry V. Levin
2019-01-07 2:54 ` [PATCH v7 17/22] riscv: define syscall_get_arch() Dmitry V. Levin
2019-01-07 2:54 ` [PATCH v7 18/22] Move EM_UNICORE to uapi/linux/elf-em.h Dmitry V. Levin
2019-01-07 2:54 ` [PATCH v7 19/22] unicore32: add asm/syscall.h Dmitry V. Levin
2019-01-07 2:54 ` [PATCH v7 20/22] syscall_get_arch: add "struct task_struct *" argument Dmitry V. Levin
2019-01-07 2:54 ` [PATCH v7 21/22] ptrace: add PTRACE_GET_SYSCALL_INFO request Dmitry V. Levin
2019-01-07 7:05 ` kbuild test robot
2019-01-07 14:58 ` Dmitry V. Levin [this message]
[not found] ` <201901071430.4jk67u0s%fengguang.wu@intel.com>
2019-01-07 12:54 ` [PATCH] nds32: fix asm/syscall.h Dmitry V. Levin
2019-02-28 21:58 ` Dmitry V. Levin
2019-01-07 2:55 ` [PATCH v7 22/22] selftests/ptrace: add a test case for PTRACE_GET_SYSCALL_INFO Dmitry V. Levin
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