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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2010-02-26 22:37:44 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-02-26 22:37:31 +0100 |
| commit | 52499f40267e1178b3b2c887aee85c0c9fd01ec0 (patch) | |
| tree | 0ed02d8d9c01434b12865b63d918725ca0738089 /arch/s390 | |
| parent | cbb870c8221147ae337612e04b2bb0211f31a74b (diff) | |
| download | linux-52499f40267e1178b3b2c887aee85c0c9fd01ec0.tar.bz2 | |
[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>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/Kconfig | 3 | ||||
| -rw-r--r-- | arch/s390/include/asm/bug.h | 10 |
2 files changed, 5 insertions, 8 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index c80235206c01..40334872f5ea 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -54,6 +54,9 @@ config GENERIC_BUG 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 b1066b9fb5f8..9beeb9db9b23 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" \ |