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* [PATCH 0/2] arch: Sync all syscall tables with 2 newly added system calls
@ 2023-09-11 18:02 Sohil Mehta
  2023-09-11 18:02 ` [PATCH 1/2] tools headers UAPI: Sync fchmodat2() syscall table entries Sohil Mehta
                   ` (2 more replies)
  0 siblings, 3 replies; 8+ messages in thread
From: Sohil Mehta @ 2023-09-11 18:02 UTC (permalink / raw)
  To: linux-kernel, linux-api, linux-arch
  Cc: Mark Rutland, Ian Rogers, Rich Felker, linux-ia64, linux-sh,
	Peter Zijlstra, Catalin Marinas, Dave Hansen, linux-mips,
	James E . J . Bottomley, Max Filippov, Andreas Schwab,
	H . Peter Anvin, sparclinux, Alexander Gordeev, Will Deacon,
	linux-s390, Eric W . Biederman, Arnd Bergmann, Yoshinori Sato,
	Helge Deller, x86, Russell King, Alexander Shishkin, Ingo Molnar,
	Geert Uytterhoeven, Lukas Bulwahn, Matt Turner,
	Christian Borntraeger, Sergei Trofimovich, Vasily Gorbik,
	Brian Gerst, Heiko Carstens, Richard Henderson, Nicholas Piggin,
	Rohan McLure, Mark Brown, Ivan Kokshaysky,
	Arnaldo Carvalho de Melo, Andy Lutomirski,
	John Paul Adrian Glaubitz, Sohil Mehta, Namhyung Kim,
	Thomas Gleixner, linux-arm-kernel, Deepak Gupta, Chris Zankel,
	Michal Simek, Thomas Bogendoerfer, linux-parisc, linux-m68k,
	Randy Dunlap, Adrian Hunter, linux-perf-users, Sven Schnelle,
	Jiri Olsa, linux-alpha, Borislav Petkov, Andrew Morton,
	Rick Edgecombe, linuxppc-dev, David S . Miller

6.6-rc1 has added support for 2 new system calls:
[1] fchmodat2()
[2] x86-specific map_shadow_stack()

This series mainly synchronizes the syscall tables arcoss the core kernel and
tools to reflect the recent updates.

For fchmodat2(), it fixes the missing entries in the tools directory.

For map_shadow_stack(), it reserves the syscall across the board. Since
map_shadow_stack() is x86 specific for now, it is marked as a conditional
syscall in sys_ni.c. Adding it to the syscall tables of other architectures is
harmless and would return ENOSYS when exercised.

Reserving arch-specific syscall numbers in the tables of all architectures is
good practice and would help avoid future conflicts.

[1]: https://lore.kernel.org/lkml/20230824-frohlocken-vorabend-725f6fdaad50@brauner/
[2]: https://lore.kernel.org/lkml/20230830234752.19858-1-dave.hansen@linux.intel.com/

Sohil Mehta (2):
  tools headers UAPI: Sync fchmodat2() syscall table entries
  arch: Reserve map_shadow_stack() syscall number for all architectures

 arch/alpha/kernel/syscalls/syscall.tbl              | 1 +
 arch/arm/tools/syscall.tbl                          | 1 +
 arch/arm64/include/asm/unistd.h                     | 2 +-
 arch/arm64/include/asm/unistd32.h                   | 2 ++
 arch/ia64/kernel/syscalls/syscall.tbl               | 1 +
 arch/m68k/kernel/syscalls/syscall.tbl               | 1 +
 arch/microblaze/kernel/syscalls/syscall.tbl         | 1 +
 arch/mips/kernel/syscalls/syscall_n32.tbl           | 1 +
 arch/mips/kernel/syscalls/syscall_n64.tbl           | 1 +
 arch/mips/kernel/syscalls/syscall_o32.tbl           | 1 +
 arch/parisc/kernel/syscalls/syscall.tbl             | 1 +
 arch/powerpc/kernel/syscalls/syscall.tbl            | 1 +
 arch/s390/kernel/syscalls/syscall.tbl               | 1 +
 arch/sh/kernel/syscalls/syscall.tbl                 | 1 +
 arch/sparc/kernel/syscalls/syscall.tbl              | 1 +
 arch/x86/entry/syscalls/syscall_32.tbl              | 1 +
 arch/xtensa/kernel/syscalls/syscall.tbl             | 1 +
 include/uapi/asm-generic/unistd.h                   | 5 ++++-
 tools/include/uapi/asm-generic/unistd.h             | 8 +++++++-
 tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl | 2 ++
 tools/perf/arch/powerpc/entry/syscalls/syscall.tbl  | 2 ++
 tools/perf/arch/s390/entry/syscalls/syscall.tbl     | 2 ++
 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl   | 2 ++
 23 files changed, 37 insertions(+), 3 deletions(-)


base-commit: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d
-- 
2.34.1


^ permalink raw reply	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2023-09-14 23:09 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-09-11 18:02 [PATCH 0/2] arch: Sync all syscall tables with 2 newly added system calls Sohil Mehta
2023-09-11 18:02 ` [PATCH 1/2] tools headers UAPI: Sync fchmodat2() syscall table entries Sohil Mehta
2023-09-11 18:02 ` [PATCH 2/2] arch: Reserve map_shadow_stack() syscall number for all architectures Sohil Mehta
2023-09-11 21:10   ` Edgecombe, Rick P
2023-09-13 19:18     ` Sohil Mehta
2023-09-13 22:05       ` Edgecombe, Rick P
2023-09-14 12:26     ` Michael Ellerman
2023-09-13 19:32 ` [PATCH 0/2] arch: Sync all syscall tables with 2 newly added system calls Sohil Mehta

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