Hi Sathish, Thanks for your email. On Thu, 29 Nov 2018 at 12:05, Satheesh Rajendran <sathnaga@xxxxxxxxxxxxxxxxxx> wrote: > > On Fri, Sep 14, 2018 at 02:02:57PM +0530, Firoz Khan wrote: > > The purpose of this patch series is: > > 1. We can easily add/modify/delete system call by changing entry > > in syscall.tbl file. No need to manually edit many files. > > > > 2. It is easy to unify the system call implementation across all > > the architectures. > > > > The system call tables are in different format in all architecture > > and it will be difficult to manually add or modify the system calls > > in the respective files manually. To make it easy by keeping a script > > and which'll generate the header file and syscall table file so this > > change will unify them across all architectures. > > > > syscall.tbl contains the list of available system calls along with > > system call number and corresponding entry point. Add a new system > > call in this architecture will be possible by adding new entry in > > the syscall.tbl file. > > > > Adding a new table entry consisting of: > > - System call number. > > - ABI. > > - System call name. > > - Entry point name. > > - Compat entry name, if required. > > > > ARM, s390 and x86 architecuture does exist the similar support. I > > leverage their implementation to come up with a generic solution. > > > > I have done the same support for work for alpha, m68k, microblaze, > > ia64, mips, parisc, sh, sparc, and xtensa. But I started sending > > the patch for one architecuture for review. Below mentioned git > > repository contains more details. > > Git repo:- https://github.com/frzkhn/system_call_table_generator/ > > > > Finally, this is the ground work for solving the Y2038 issue. We > > need to add/change two dozen of system calls to solve Y2038 issue. > > So this patch series will help to easily modify from existing > > system call to Y2038 compatible system calls. > > > > I started working system call table generation on 4.17-rc1. I used > > marcin's script - https://github.com/hrw/syscalls-table to generate > > the syscall.tbl file. And this will be the input to the system call > > table generation script. But there are couple system call got add > > in the latest rc release. If run Marcin's script on latest release, > > It will generate a new syscall.tbl. But I still use the old file - > > syscall.tbl and once all review got over I'll update syscall.tbl > > alone w.r.to the tip of the kernel. The impact of this thing, few > > of the system call won't work. > > > > Firoz Khan (3): > > powerpc: Replace NR_syscalls macro from asm/unistd.h > > powerpc: Add system call table generation support > > powerpc: uapi header and system call table file generation > > > > arch/powerpc/Makefile | 3 + > > arch/powerpc/include/asm/Kbuild | 3 + > > arch/powerpc/include/asm/unistd.h | 3 +- > > arch/powerpc/include/uapi/asm/Kbuild | 2 + > > arch/powerpc/include/uapi/asm/unistd.h | 391 +--------------------------- > > arch/powerpc/kernel/Makefile | 3 +- > > arch/powerpc/kernel/syscall_table_32.S | 9 + > > arch/powerpc/kernel/syscall_table_64.S | 17 ++ > > arch/powerpc/kernel/syscalls/Makefile | 51 ++++ > > arch/powerpc/kernel/syscalls/syscall_32.tbl | 378 +++++++++++++++++++++++++++ > > arch/powerpc/kernel/syscalls/syscall_64.tbl | 372 ++++++++++++++++++++++++++ > > arch/powerpc/kernel/syscalls/syscallhdr.sh | 37 +++ > > arch/powerpc/kernel/syscalls/syscalltbl.sh | 38 +++ > > arch/powerpc/kernel/systbl.S | 50 ---- > > 14 files changed, 916 insertions(+), 441 deletions(-) > > create mode 100644 arch/powerpc/kernel/syscall_table_32.S > > create mode 100644 arch/powerpc/kernel/syscall_table_64.S > > create mode 100644 arch/powerpc/kernel/syscalls/Makefile > > create mode 100644 arch/powerpc/kernel/syscalls/syscall_32.tbl > > create mode 100644 arch/powerpc/kernel/syscalls/syscall_64.tbl > > create mode 100644 arch/powerpc/kernel/syscalls/syscallhdr.sh > > create mode 100644 arch/powerpc/kernel/syscalls/syscalltbl.sh > > delete mode 100644 arch/powerpc/kernel/systbl.S > > Hi, > > This patch series failed to boot in IBM Power8 box with below base commit and built with ppc64le_defconfig, > https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=merge&id=183cbf93be88d1a4fb572e27b1e08aa0ad85 I think you are applied some old patch series. Could you please perform the boot test on powerpc v3 which I have sent few hour before. Thanks Firoz > > Complete boot log attached. > > > [ 1.577383] SGI XFS with ACLs, security attributes, no debug enabled > [ 1.581550] Bad kernel stack pointer 6e690000 at c000000000e2ceec > [ 1.581558] Oops: Bad kernel stack pointer, sig: 6 [#1] > [ 1.581562] LE SMP NR_CPUS=2048 NUMA PowerNV > [ 1.581567] Modules linked in: > [ 1.581572] CPU: 3 PID: 1937 Comm: modprobe Not tainted 4.20.0-rc4-gd35c78239 #1 > [ 1.581577] NIP: c000000000e2ceec LR: c00000000000b9e4 CTR: c000000000e2cee0 > [ 1.581582] REGS: c0000007ffe77d30 TRAP: 0e40 Not tainted (4.20.0-rc4-gd35c78239) > [ 1.581586] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 48024488 XER: 00000000 > [ 1.5815 > 94] CFAR: c00000000000b9e0 IRQMASK: c0000000014d1bd8 > [ 1.581594] GPR00: 00000000000011e0 000000006e690000 c000000001498900 ffffffffffffff9c > [ 1.581594] GPR04: c00000006ecb0ff8 0000000000080000 0000000000000000 7f7f7f7f7f7f7f7f > [ 1.581594] GPR08: 0000000000000000 c000001e5104fe90 0000000000000000 c000000000c30ff8 > [ 1.581594] GPR12: c000000000e2cee0 c0000007ffffd800 4f4c5f4543415254 00007fffb55927d0 > [ 1.581594] GPR16: 00007fffb55bfbf0 00007fffc087b160 c000000065b70ff8 00007fffc087b5c8 > [ 1.581594] GPR20: 000000000000000d 0000000000000000 0000000000000000 000000000000 > 0000 > [ 1.581594] GPR24: 000000012b660d79 0000000000000000 00007fffb55c0000 0000000000000000 > [ 1.581594] GPR28: 00007fffb55c1110 0000000000000001 00007fffb55c1050 00007fffc087a880 > [ 1.58 > 1637] NIP [c000000000e2ceec] str_spec.65753+0x147da0/0x1f1c5c > [ 1.581643] LR [c00000000000b9e4] system_call+0x5c/0x70 > [ 1.581646] Call Trace: > [ 1.581648] Instruction dump: > [ 1.581652] > XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX > [ 1.581657] XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX > [ 1.581664] ---[ end trace 37e56b4 > 4979b6992 ]--- > [ 1.582355] > > Regards, > -Satheesh. > > > > -- > > 1.9.1 > >
