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37 lines
850 B
37 lines
850 B
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* S390 Version |
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* Copyright IBM Corp. 2002, 2011 |
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* Author(s): Thomas Spatzier ([email protected]) |
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* Author(s): Mahesh Salgaonkar ([email protected]) |
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* Author(s): Heinz Graalfs ([email protected]) |
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* Author(s): Andreas Krebbel ([email protected]) |
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* |
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* @remark Copyright 2002-2011 OProfile authors |
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*/ |
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#include <linux/oprofile.h> |
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#include <linux/init.h> |
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#include <asm/processor.h> |
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#include <asm/unwind.h> |
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static void s390_backtrace(struct pt_regs *regs, unsigned int depth) |
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{ |
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struct unwind_state state; |
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unwind_for_each_frame(&state, current, regs, 0) { |
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if (depth-- == 0) |
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break; |
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oprofile_add_trace(state.ip); |
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} |
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} |
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int __init oprofile_arch_init(struct oprofile_operations *ops) |
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{ |
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ops->backtrace = s390_backtrace; |
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return 0; |
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} |
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void oprofile_arch_exit(void) |
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{ |
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}
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