diff options
| author | David Howells <dhowells@redhat.com> | 2007-07-19 04:49:09 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-19 13:04:50 -0400 |
| commit | ea02e3dde3509ffa7fda7f8de9c8a366e03f7bbd (patch) | |
| tree | 0c48aa948de8549a2b183c2ed3e5b338fa9730b7 /arch/frv | |
| parent | 3abf7afd406866a84276d3ed04f4edf6070c9cb5 (diff) | |
FRV: work around a possible compiler bug
Work around a possible bug in the FRV compiler.
What appears to be happening is that gcc resolves the
__builtin_constant_p() in kmalloc() to true, but then fails to reduce the
therefore constant conditions in the if-statements it guards to constant
results.
When compiling with -O2 or -Os, one single spurious error crops up in
cpuup_callback() in mm/slab.c. This can be avoided by making the memsize
variable const.
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>
Diffstat (limited to 'arch/frv')
| -rw-r--r-- | arch/frv/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/frv/Makefile b/arch/frv/Makefile index 038e3a8457e0..9bf7345c5cc9 100644 --- a/arch/frv/Makefile +++ b/arch/frv/Makefile | |||
| @@ -88,7 +88,7 @@ ASFLAGS += -mno-fdpic | |||
| 88 | # make sure the .S files get compiled with debug info | 88 | # make sure the .S files get compiled with debug info |
| 89 | # and disable optimisations that are unhelpful whilst debugging | 89 | # and disable optimisations that are unhelpful whilst debugging |
| 90 | ifdef CONFIG_DEBUG_INFO | 90 | ifdef CONFIG_DEBUG_INFO |
| 91 | CFLAGS += -O1 | 91 | #CFLAGS += -O1 |
| 92 | AFLAGS += -Wa,--gdwarf2 | 92 | AFLAGS += -Wa,--gdwarf2 |
| 93 | ASFLAGS += -Wa,--gdwarf2 | 93 | ASFLAGS += -Wa,--gdwarf2 |
| 94 | endif | 94 | endif |