On Wed, 14 Nov 2018 at 10:02, Firoz Khan <firoz.khan@xxxxxxxxxx> wrote: > > The purpose of this patch series is, we can easily > add/modify/delete system call table support by cha- > nging entry in syscall.tbl file instead of manually > changing many files. The other goal is to unify the > system call table generation support implementation > across all the architectures. > > The system call tables are in different format in > all architecture. It will be difficult to manually > add, modify or delete the system calls in the resp- > ective files manually. To make it easy by keeping a > script and which'll generate uapi header file and > syscall table file. > > syscall.tbl contains the list of available system > calls along with system call number and correspond- > ing entry point. Add a new system call in this arch- > itecture 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. > > Please note, this support is only available for 32-bit > kernel, not 64-bit kernel. As I came across the 64-bit > kernel is not active for long time. > > ARM, s390 and x86 architecuture does exist the sim- > ilar support. I leverage their implementation to come > up with a generic solution. > > I have done the same support for work for alpha, ia64, > m68k, microblaze, mips, parisc, powerpc, sparc, and > xtensa. Below mentioned git repository contains more > details about the workflow. > > https://github.com/frzkhn/system_call_table_generator/ > > Finally, this is the ground work to solve the Y2038 > issue. We need to add two dozen of system calls to solve > Y2038 issue. So this patch series will help to add new > system calls easily by adding new entry in the syscall- > .tbl. > > Changes since v2: > - changed from generic-y to generated-y in Kbuild. > > Changes since v1: > - optimized/updated the syscall table generation > scripts. > - fixed all mixed indentation issues in syscall.tbl. > - added "comments" in syscall.tbl. > > Firoz Khan (3): > sh: add __NR_syscalls along with NR_syscalls > sh: add system call table generation support > sh: generate uapi header and syscall table header files Gentle reminder! Could someone review this patch series. I haven't received any feedback till now. FYI, this support is only available for 32-bit kernel, not 64-bit kernel. As I came across the 64-bit kernel is not active for long time. Thanks Firoz > > arch/sh/Makefile | 3 + > arch/sh/include/asm/Kbuild | 1 + > arch/sh/include/asm/unistd.h | 2 + > arch/sh/include/uapi/asm/Kbuild | 1 + > arch/sh/include/uapi/asm/unistd_32.h | 4 +- > arch/sh/include/uapi/asm/unistd_64.h | 4 +- > arch/sh/kernel/syscalls/Makefile | 38 ++++ > arch/sh/kernel/syscalls/syscall.tbl | 392 ++++++++++++++++++++++++++++++++++ > arch/sh/kernel/syscalls/syscallhdr.sh | 36 ++++ > arch/sh/kernel/syscalls/syscalltbl.sh | 32 +++ > arch/sh/kernel/syscalls_32.S | 387 +-------------------------------- > 11 files changed, 514 insertions(+), 386 deletions(-) > create mode 100644 arch/sh/kernel/syscalls/Makefile > create mode 100644 arch/sh/kernel/syscalls/syscall.tbl > create mode 100644 arch/sh/kernel/syscalls/syscallhdr.sh > create mode 100644 arch/sh/kernel/syscalls/syscalltbl.sh > > -- > 1.9.1 >
