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-rw-r--r--arch/s390/kernel/mcount64.S80
1 files changed, 0 insertions, 80 deletions
diff --git a/arch/s390/kernel/mcount64.S b/arch/s390/kernel/mcount64.S
deleted file mode 100644
index 07abe8d464d4..000000000000
--- a/arch/s390/kernel/mcount64.S
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright IBM Corp. 2008, 2009
- *
- * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>,
- *
- */
-
-#include <linux/linkage.h>
-#include <asm/asm-offsets.h>
-#include <asm/ftrace.h>
-#include <asm/ptrace.h>
-
- .section .kprobes.text, "ax"
-
-ENTRY(ftrace_stub)
- br %r14
-
-#define STACK_FRAME_SIZE (STACK_FRAME_OVERHEAD + __PT_SIZE)
-#define STACK_PTREGS (STACK_FRAME_OVERHEAD)
-#define STACK_PTREGS_GPRS (STACK_PTREGS + __PT_GPRS)
-#define STACK_PTREGS_PSW (STACK_PTREGS + __PT_PSW)
-
-ENTRY(_mcount)
- br %r14
-
-ENTRY(ftrace_caller)
- .globl ftrace_regs_caller
- .set ftrace_regs_caller,ftrace_caller
- lgr %r1,%r15
- aghi %r15,-STACK_FRAME_SIZE
- stg %r1,__SF_BACKCHAIN(%r15)
- stg %r1,(STACK_PTREGS_GPRS+15*8)(%r15)
- stg %r0,(STACK_PTREGS_PSW+8)(%r15)
- stmg %r2,%r14,(STACK_PTREGS_GPRS+2*8)(%r15)
-#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
- aghik %r2,%r0,-MCOUNT_INSN_SIZE
- lgrl %r4,function_trace_op
- lgrl %r1,ftrace_trace_function
-#else
- lgr %r2,%r0
- aghi %r2,-MCOUNT_INSN_SIZE
- larl %r4,function_trace_op
- lg %r4,0(%r4)
- larl %r1,ftrace_trace_function
- lg %r1,0(%r1)
-#endif
- lgr %r3,%r14
- la %r5,STACK_PTREGS(%r15)
- basr %r14,%r1
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-# The j instruction gets runtime patched to a nop instruction.
-# See ftrace_enable_ftrace_graph_caller. The patched instruction is:
-# j .+4
-ENTRY(ftrace_graph_caller)
- j ftrace_graph_caller_end
- lg %r2,(STACK_PTREGS_GPRS+14*8)(%r15)
- lg %r3,(STACK_PTREGS_PSW+8)(%r15)
- brasl %r14,prepare_ftrace_return
- stg %r2,(STACK_PTREGS_GPRS+14*8)(%r15)
-ftrace_graph_caller_end:
- .globl ftrace_graph_caller_end
-#endif
- lg %r1,(STACK_PTREGS_PSW+8)(%r15)
- lmg %r2,%r15,(STACK_PTREGS_GPRS+2*8)(%r15)
- br %r1
-
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-
-ENTRY(return_to_handler)
- stmg %r2,%r5,32(%r15)
- lgr %r1,%r15
- aghi %r15,-STACK_FRAME_OVERHEAD
- stg %r1,__SF_BACKCHAIN(%r15)
- brasl %r14,ftrace_return_to_handler
- aghi %r15,STACK_FRAME_OVERHEAD
- lgr %r14,%r2
- lmg %r2,%r5,32(%r15)
- br %r14
-
-#endif