| /* |
| * Copyright (C) 2008 Imagination Technologies Ltd. |
| * Licensed under the GPL |
| * |
| */ |
| |
| #include <asm/ftrace.h> |
| |
| .text |
| #ifdef CONFIG_DYNAMIC_FTRACE |
| .global _mcount_wrapper |
| .type _mcount_wrapper,function |
| _mcount_wrapper: |
| MOV PC,D0.4 |
| |
| .global _ftrace_caller |
| .type _ftrace_caller,function |
| _ftrace_caller: |
| MSETL [A0StP], D0Ar6, D0Ar4, D0Ar2, D0.4 |
| MOV D1Ar1, D0.4 |
| MOV D0Ar2, D1RtP |
| SUB D1Ar1,D1Ar1,#MCOUNT_INSN_SIZE |
| |
| .global _ftrace_call |
| _ftrace_call: |
| MOVT D1RtP,#HI(_ftrace_stub) |
| CALL D1RtP,#LO(_ftrace_stub) |
| GETL D0.4, D1RtP, [A0StP++#(-8)] |
| GETL D0Ar2, D1Ar1, [A0StP++#(-8)] |
| GETL D0Ar4, D1Ar3, [A0StP++#(-8)] |
| GETL D0Ar6, D1Ar5, [A0StP++#(-8)] |
| MOV PC, D0.4 |
| #else |
| |
| .global _mcount_wrapper |
| .type _mcount_wrapper,function |
| _mcount_wrapper: |
| MSETL [A0StP], D0Ar6, D0Ar4, D0Ar2, D0.4 |
| MOV D1Ar1, D0.4 |
| MOV D0Ar2, D1RtP |
| MOVT D0Re0,#HI(_ftrace_trace_function) |
| ADD D0Re0,D0Re0,#LO(_ftrace_trace_function) |
| GET D1Ar3,[D0Re0] |
| MOVT D1Re0,#HI(_ftrace_stub) |
| ADD D1Re0,D1Re0,#LO(_ftrace_stub) |
| CMP D1Ar3,D1Re0 |
| BEQ $Ltrace_exit |
| MOV D1RtP,D1Ar3 |
| SUB D1Ar1,D1Ar1,#MCOUNT_INSN_SIZE |
| SWAP PC,D1RtP |
| $Ltrace_exit: |
| GETL D0.4, D1RtP, [A0StP++#(-8)] |
| GETL D0Ar2, D1Ar1, [A0StP++#(-8)] |
| GETL D0Ar4, D1Ar3, [A0StP++#(-8)] |
| GETL D0Ar6, D1Ar5, [A0StP++#(-8)] |
| MOV PC, D0.4 |
| |
| #endif /* CONFIG_DYNAMIC_FTRACE */ |
| |
| .global _ftrace_stub |
| _ftrace_stub: |
| MOV PC,D1RtP |