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John David Anglin 047a3b12ee parisc: fix out-of-register compiler error in ldcw inline assembler function commit `45db07382a` upstream. The __ldcw macro has a problem when its argument needs to be reloaded from memory. The output memory operand and the input register operand both need to be reloaded using a register in class R1_REGS when generating 64-bit code. This fails because there's only a single register in the class. Instead, use a memory clobber. This also makes the __ldcw macro a compiler memory barrier. Signed-off-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Luis Henriques <luis.henriques@canonical.com>	History 2015-01-15 10:44:47 +00:00
..
asm	parisc: fix out-of-register compiler error in ldcw inline assembler function	2015-01-15 10:44:47 +00:00
uapi/asm	parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls	2014-11-27 11:21:41 +00:00

John David Anglin 047a3b12ee parisc: fix out-of-register compiler error in ldcw inline assembler function

commit 45db07382a upstream.

The __ldcw macro has a problem when its argument needs to be reloaded from
memory. The output memory operand and the input register operand both need to
be reloaded using a register in class R1_REGS when generating 64-bit code.
This fails because there's only a single register in the class. Instead, use a
memory clobber. This also makes the __ldcw macro a compiler memory barrier.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

History

2015-01-15 10:44:47 +00:00

asm parisc: fix out-of-register compiler error in ldcw inline assembler function 2015-01-15 10:44:47 +00:00

uapi/asm parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls 2014-11-27 11:21:41 +00:00