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authorHelge Deller <deller@gmx.de>2013-10-13 23:11:30 +0400
committerHelge Deller <deller@gmx.de>2013-11-08 01:25:33 +0400
commit61dbbaeb86c2181c79efae2d186193e0f8008af1 (patch)
treed12b369af162dcdb8835731b36da025158c8b616 /arch/parisc/include/asm/assembly.h
parent5e01dc7b26d9f24f39abace5da98ccbd6a5ceb52 (diff)
downloadlinux-61dbbaeb86c2181c79efae2d186193e0f8008af1.tar.xz
parisc: provide macro to create exception table entries
Provide a macro ASM_EXCEPTIONTABLE_ENTRY() to create exception table entries and convert all open-coded places to use that macro. This patch is a first step toward creating a exception table which only holds 32bit pointers even on a 64bit kernel. That way in my own kernel I was able to reduce the in-kernel exception table from 44kB to 22kB. Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/include/asm/assembly.h')
-rw-r--r--arch/parisc/include/asm/assembly.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index 0da848232344..b3069fd83468 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -515,5 +515,17 @@
nop /* 7 */
.endm
+ /*
+ * ASM_EXCEPTIONTABLE_ENTRY
+ *
+ * Creates an exception table entry.
+ * Do not convert to a assembler macro. This won't work.
+ */
+#define ASM_EXCEPTIONTABLE_ENTRY(fault_addr, except_addr) \
+ .section __ex_table,"aw" ! \
+ ASM_ULONG_INSN fault_addr, except_addr ! \
+ .previous
+
+
#endif /* __ASSEMBLY__ */
#endif