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authorJan Glauber <jang@linux.vnet.ibm.com>2011-07-24 10:48:19 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-07-24 10:48:21 +0200
commit144d634a21caff1d54cb4bb0d073774e88130045 (patch)
tree9eea288248189b899ee85ba346cf344e57dd402a /arch/s390/kernel/mcount64.S
parent603d1a50acf252621a3598618b018b8123aaba64 (diff)
[S390] fix s390 assembler code alignments
The alignment is missing for various global symbols in s390 assembly code. With a recent gcc and an instruction like stgrl this can lead to a specification exception if the instruction uses such a mis-aligned address. Specify the alignment explicitely and while add it define __ALIGN for s390 and use the ENTRY define to save some lines of code. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/mcount64.S')
-rw-r--r--arch/s390/kernel/mcount64.S16
1 files changed, 6 insertions, 10 deletions
diff --git a/arch/s390/kernel/mcount64.S b/arch/s390/kernel/mcount64.S
index e73667286ac..f70cadec68f 100644
--- a/arch/s390/kernel/mcount64.S
+++ b/arch/s390/kernel/mcount64.S
@@ -5,21 +5,19 @@
*
*/
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
.section .kprobes.text, "ax"
- .globl ftrace_stub
-ftrace_stub:
+ENTRY(ftrace_stub)
br %r14
- .globl _mcount
-_mcount:
+ENTRY(_mcount)
#ifdef CONFIG_DYNAMIC_FTRACE
br %r14
- .globl ftrace_caller
-ftrace_caller:
+ENTRY(ftrace_caller)
#endif
larl %r1,function_trace_stop
icm %r1,0xf,0(%r1)
@@ -37,8 +35,7 @@ ftrace_caller:
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
lg %r2,168(%r15)
lg %r3,272(%r15)
- .globl ftrace_graph_caller
-ftrace_graph_caller:
+ENTRY(ftrace_graph_caller)
# The bras instruction gets runtime patched to call prepare_ftrace_return.
# See ftrace_enable_ftrace_graph_caller. The patched instruction is:
# bras %r14,prepare_ftrace_return
@@ -52,8 +49,7 @@ ftrace_graph_caller:
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
- .globl return_to_handler
-return_to_handler:
+ENTRY(return_to_handler)
stmg %r2,%r5,32(%r15)
lgr %r1,%r15
aghi %r15,-160