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arch/sh/oprofile/common.c
1.43 KB
81f7e3824 Initial Release, ... |
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/* * arch/sh/oprofile/init.c * * Copyright (C) 2003 - 2010 Paul Mundt * * Based on arch/mips/oprofile/common.c: * * Copyright (C) 2004, 2005 Ralf Baechle * Copyright (C) 2005 MIPS Technologies, Inc. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #include <linux/kernel.h> #include <linux/oprofile.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/smp.h> #include <linux/perf_event.h> #include <linux/slab.h> #include <asm/processor.h> extern void sh_backtrace(struct pt_regs * const regs, unsigned int depth); #ifdef CONFIG_HW_PERF_EVENTS /* * This will need to be reworked when multiple PMUs are supported. */ static char *sh_pmu_op_name; char *op_name_from_perf_id(void) { return sh_pmu_op_name; } int __init oprofile_arch_init(struct oprofile_operations *ops) { ops->backtrace = sh_backtrace; if (perf_num_counters() == 0) return -ENODEV; sh_pmu_op_name = kasprintf(GFP_KERNEL, "%s/%s", UTS_MACHINE, perf_pmu_name()); if (unlikely(!sh_pmu_op_name)) return -ENOMEM; return oprofile_perf_init(ops); } void oprofile_arch_exit(void) { oprofile_perf_exit(); kfree(sh_pmu_op_name); } #else int __init oprofile_arch_init(struct oprofile_operations *ops) { ops->backtrace = sh_backtrace; return -ENODEV; } void oprofile_arch_exit(void) {} #endif /* CONFIG_HW_PERF_EVENTS */ |