Andreas Schwab d311156acf m68k: Define asmlinkage_protect ... commit 8474ba74193d302e8340dddd1e16c85cc4b98caf upstream. Make sure the compiler does not modify arguments of syscall functions. This can happen if the compiler generates a tailcall to another function. For example, without asmlinkage_protect sys_openat is compiled into this function: sys_openat: clr.l %d0 move.w 18(%sp),%d0 move.l %d0,16(%sp) jbra do_sys_open Note how the fourth argument is modified in place, modifying the register %d4 that gets restored from this stack slot when the function returns to user-space. The caller may expect the register to be unmodified across system calls. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Zefan Li <lizefan@huawei.com>		2016-04-27 18:55:24 +08:00
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amiga
apollo
atari
bvme6000
configs
emu	m68k/atari: ARAnyM - Fix NatFeat module support	2013-08-20 08:26:29 -07:00
fpsp040
hp300
ifpsp060
include/asm	m68k: Define asmlinkage_protect	2016-04-27 18:55:24 +08:00
kernel	m68k/mac: Fix unexpected interrupt with CONFIG_EARLY_PRINTK	2013-06-07 12:49:34 -07:00
lib
mac
math-emu
mm	vm: add VM_FAULT_SIGSEGV handling support	2015-04-14 17:33:57 +08:00
mvme16x
mvme147
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q40
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sun3x
tools/amiga
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