WSL2-Linux-Kernel/arch/mn10300
Mark Salter d22a001bf6 mn10300: fix kernel build failures when using gcc-4.x
Fix some build failures when using gcc-4.x for MN10300.

Firstly, __get_user() fails to build because the pointer points to a const and
__gu_val ends up being read-only:

In file included from include/linux/mempolicy.h:62,
                 from init/main.c:50:
include/linux/pagemap.h: In function 'fault_in_pages_readable':
include/linux/pagemap.h:394: error: read-only variable '__gu_val' used as 'asm' output
include/linux/pagemap.h:394: error: read-only variable '__gu_val' used as 'asm' output
include/linux/pagemap.h:394: error: read-only variable '__gu_val' used as 'asm' output
include/linux/pagemap.h:400: error: read-only variable '__gu_val' used as 'asm' output
include/linux/pagemap.h:400: error: read-only variable '__gu_val' used as 'asm' output
include/linux/pagemap.h:400: error: read-only variable '__gu_val' used as 'asm' output
make[1]: *** [init/main.o] Error 1

Secondly, gcc-4 doesn't allow casts of lvalues:

  UPD     include/linux/compile.h
arch/mn10300/kernel/rtc.c: In function 'calibrate_clock':
arch/mn10300/kernel/rtc.c:170: error: lvalue required as left operand of assignment
arch/mn10300/kernel/rtc.c:172: error: lvalue required as left operand of assignment
make[1]: *** [arch/mn10300/kernel/rtc.o] Error 1

These are seen with gcc 4.2.1.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-01 16:11:12 -07:00
..
boot inflate: refactor inflate malloc code 2008-07-25 10:53:28 -07:00
configs MN10300: Update the ASB2303 defconfig 2009-04-24 07:47:59 -07:00
include/asm mn10300: fix kernel build failures when using gcc-4.x 2009-10-01 16:11:12 -07:00
kernel mn10300: Clean up linker script using higher-level macros. 2009-09-24 17:16:22 -07:00
lib mn10300: provide __ucmpdi2() for MN10300 2008-07-04 10:40:07 -07:00
mm arches: drop superfluous casts in nr_free_pages() callers 2009-09-22 07:17:34 -07:00
oprofile MN10300: Kill MN10300's own profiling Kconfig 2009-04-09 10:53:16 -07:00
proc-mn103e010 Separate out the proc- and unit-specific header directories from the general 2009-04-10 14:33:48 +01:00
unit-asb2303 mn10300: fix kernel build failures when using gcc-4.x 2009-10-01 16:11:12 -07:00
unit-asb2305 mn10300: fix kernel build failures when using gcc-4.x 2009-10-01 16:11:12 -07:00
Kconfig MN10300: Add utrace/tracehooks support 2009-06-11 09:02:20 -07:00
Kconfig.debug MN10300: Add built-in testing for misalignment handler 2008-11-12 10:41:17 -08:00
Makefile Separate out the proc- and unit-specific header directories from the general 2009-04-10 14:33:48 +01:00