[S390] bug: use relative pointers in bug table entries
Reduces the size of the bug table entries by 50% on 64bit kernels.
Saves around 30kb on a defconfig kernel.
s390 version of b93a531e "allow bug table entries to use relative
pointers (and use it on x86-64)".
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c802352..4033487 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -54,6 +54,9 @@
depends on BUG
default y
+config GENERIC_BUG_RELATIVE_POINTERS
+ def_bool y
+
config NO_IOMEM
def_bool y
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index b1066b9..9beeb9d 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -5,12 +5,6 @@
#ifdef CONFIG_BUG
-#ifdef CONFIG_64BIT
-#define S390_LONG ".quad"
-#else
-#define S390_LONG ".long"
-#endif
-
#ifdef CONFIG_DEBUG_BUGVERBOSE
#define __EMIT_BUG(x) do { \
@@ -21,7 +15,7 @@
"2: .asciz \""__FILE__"\"\n" \
".previous\n" \
".section __bug_table,\"a\"\n" \
- "3:\t" S390_LONG "\t1b,2b\n" \
+ "3: .long 1b-3b,2b-3b\n" \
" .short %0,%1\n" \
" .org 3b+%2\n" \
".previous\n" \
@@ -37,7 +31,7 @@
"0: j 0b+2\n" \
"1:\n" \
".section __bug_table,\"a\"\n" \
- "2:\t" S390_LONG "\t1b\n" \
+ "2: .long 1b-2b\n" \
" .short %0\n" \
" .org 2b+%1\n" \
".previous\n" \
