[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>
diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S
index 1e6a557..7e2c38b 100644
--- a/arch/s390/kernel/mcount.S
+++ b/arch/s390/kernel/mcount.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
stm %r2,%r5,16(%r15)
bras %r1,2f
@@ -41,8 +39,7 @@
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
l %r2,100(%r15)
l %r3,152(%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
@@ -56,8 +53,7 @@
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
- .globl return_to_handler
-return_to_handler:
+ENTRY(return_to_handler)
stm %r2,%r5,16(%r15)
st %r14,56(%r15)
lr %r0,%r15