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m68k: Wire up clone3() syscall

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Wire up the clone3() syscall for m68k. The special entry point is done in
assembler as was done for clone() as well. This is needed because all
registers need to be saved. The C wrapper then calls the generic
sys_clone3() with the correct arguments.

Tested on A1200 using the simple test program from:

  https://lore.kernel.org/lkml/20190716130631.tohj4ub54md25dys@brauner.io/

Signed-off-by: Kars de Jong <jongk@linux-m68k.org>
Link: https://lore.kernel.org/r/20191124195225.31230-1-jongk@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Kars de Jong
2019-11-24 20:52:25 +01:00
committed by Geert Uytterhoeven
parent 46cf053efe
commit e8bb2a2a1d
4 changed files with 21 additions and 2 deletions
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2
arch/m68k/kernel/syscalls/syscall.tbl
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@@ -434,4 +434,4 @@
432 common fsmount sys_fsmount
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
# 435 reserved for clone3
435 common clone3 __sys_clone3