mcount.S (740eaf7d4dd255789987a543b0203ca239b37087) mcount.S (657480d9c01574d1e11bbb29e725db9907daf782)
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright IBM Corp. 2008, 2009
4 *
5 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>,
6 *
7 */
8

--- 28 unchanged lines hidden (view full) ---

37 BR_EX %r14
38ENDPROC(_mcount)
39EXPORT_SYMBOL(_mcount)
40
41ENTRY(ftrace_caller)
42 .globl ftrace_regs_caller
43 .set ftrace_regs_caller,ftrace_caller
44 stg %r14,(__SF_GPRS+8*8)(%r15) # save traced function caller
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright IBM Corp. 2008, 2009
4 *
5 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>,
6 *
7 */
8

--- 28 unchanged lines hidden (view full) ---

37 BR_EX %r14
38ENDPROC(_mcount)
39EXPORT_SYMBOL(_mcount)
40
41ENTRY(ftrace_caller)
42 .globl ftrace_regs_caller
43 .set ftrace_regs_caller,ftrace_caller
44 stg %r14,(__SF_GPRS+8*8)(%r15) # save traced function caller
45 lghi %r14,0 # save condition code
46 ipm %r14 # don't put any instructions
47 sllg %r14,%r14,16 # clobbering CC before this point
45 lgr %r1,%r15
46#if !(defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT))
47 aghi %r0,MCOUNT_RETURN_FIXUP
48#endif
49 # allocate stack frame for ftrace_caller to contain traced function
50 aghi %r15,-TRACED_FUNC_FRAME_SIZE
51 stg %r1,__SF_BACKCHAIN(%r15)
52 stg %r0,(__SF_GPRS+8*8)(%r15)
53 stg %r15,(__SF_GPRS+9*8)(%r15)
54 # allocate pt_regs and stack frame for ftrace_trace_function
55 aghi %r15,-STACK_FRAME_SIZE
56 stg %r1,(STACK_PTREGS_GPRS+15*8)(%r15)
48 lgr %r1,%r15
49#if !(defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT))
50 aghi %r0,MCOUNT_RETURN_FIXUP
51#endif
52 # allocate stack frame for ftrace_caller to contain traced function
53 aghi %r15,-TRACED_FUNC_FRAME_SIZE
54 stg %r1,__SF_BACKCHAIN(%r15)
55 stg %r0,(__SF_GPRS+8*8)(%r15)
56 stg %r15,(__SF_GPRS+9*8)(%r15)
57 # allocate pt_regs and stack frame for ftrace_trace_function
58 aghi %r15,-STACK_FRAME_SIZE
59 stg %r1,(STACK_PTREGS_GPRS+15*8)(%r15)
60 stg %r14,(STACK_PTREGS_PSW)(%r15)
61 lg %r14,(__SF_GPRS+8*8)(%r1) # restore original return address
62 stosm (STACK_PTREGS_PSW)(%r15),0
57 aghi %r1,-TRACED_FUNC_FRAME_SIZE
58 stg %r1,__SF_BACKCHAIN(%r15)
59 stg %r0,(STACK_PTREGS_PSW+8)(%r15)
60 stmg %r2,%r14,(STACK_PTREGS_GPRS+2*8)(%r15)
61#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
62 aghik %r2,%r0,-MCOUNT_INSN_SIZE
63 lgrl %r4,function_trace_op
64 lgrl %r1,ftrace_trace_function

--- 44 unchanged lines hidden --- 		63 aghi %r1,-TRACED_FUNC_FRAME_SIZE
64 stg %r1,__SF_BACKCHAIN(%r15)
65 stg %r0,(STACK_PTREGS_PSW+8)(%r15)
66 stmg %r2,%r14,(STACK_PTREGS_GPRS+2*8)(%r15)
67#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
68 aghik %r2,%r0,-MCOUNT_INSN_SIZE
69 lgrl %r4,function_trace_op
70 lgrl %r1,ftrace_trace_function

--- 44 unchanged lines hidden ---