Commit b160628e authored by Helge Deller's avatar Helge Deller
Browse files

parisc: Show error if wrong 32/64-bit compiler is being used 



It happens quite often that people use the wrong compiler to build the
kernel:

make ARCH=parisc   -> builds the 32-bit kernel
make ARCH=parisc64 -> builds the 64-bit kernel

This patch adds a sanity check which errors out with an instruction how
use the correct ARCH= option.

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v5.15+
parent 18a1d5e1

arch/parisc/include/asm/bitops.h

+8 −0
Original line number Diff line number Diff line
@@ -12,6 +12,14 @@ 
#include <asm/barrier.h>

#include <linux/atomic.h>



/* compiler build environment sanity checks: */

#if !defined(CONFIG_64BIT) && defined(__LP64__)

#error "Please use 'ARCH=parisc' to build the 32-bit kernel."

#endif

#if defined(CONFIG_64BIT) && !defined(__LP64__)

#error "Please use 'ARCH=parisc64' to build the 64-bit kernel."

#endif



/* See http://marc.theaimsgroup.com/?t=108826637900003 for discussion

 * on use of volatile and __*_bit() (set/clear/change):

 *	*_bit() want use of volatile.