powerpc: Enable compile-time check for syscall handlers

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The table of syscall handlers and registered compatibility syscall
handlers has in past been produced using assembly, with function
references resolved at link time. This moves link-time errors to
compile-time, by rewriting systbl.S in C, and including the
linux/syscalls.h, linux/compat.h and asm/syscalls.h headers for
prototypes.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rohan McLure <rmclure@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220921065605.1051927-18-rmclure@linux.ibm.com

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Rohan McLure 2022-09-21 16:55:57 +10:00 • committed by Michael Ellerman

parent 8cd1def4b8

commit 39859aea41

2 changed files with 35 additions and 45 deletions

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32

arch/powerpc/kernel/systbl.S → arch/powerpc/kernel/systbl.c

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