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c2de993836
2008-03-20 Soren Sandmann <sandmann@redhat.com> * module/sysprof-module.c (trace_kernel): Use kernel builtin tracer instead of copying everything ourselves. svn path=/trunk/; revision=401
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/* Sysprof -- Sampling, systemwide CPU profiler
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* Copyright 2004, Red Hat, Inc.
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* Copyright 2004, 2005, Soeren Sandmann
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef SYSPROF_MODULE_H
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#define SYSPROF_MODULE_H
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typedef struct SysprofStackTrace SysprofStackTrace;
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typedef struct SysprofStackInfo SysprofStackInfo;
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typedef struct SysprofMmapArea SysprofMmapArea;
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#define SYSPROF_N_TRACES 64
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#define SYSPROF_MAX_ADDRESSES 126
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struct SysprofStackTrace
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{
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void *kernel_stack[SYSPROF_MAX_ADDRESSES];
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void *addresses[SYSPROF_MAX_ADDRESSES];
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int n_kernel_words;
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int n_addresses; /* note: this can be 1 if the process was compiled
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* with -fomit-frame-pointer or is otherwise weird
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*/
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int pid; /* -1 if in kernel */
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int truncated;
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};
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struct SysprofMmapArea
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{
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SysprofStackTrace traces[SYSPROF_N_TRACES];
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unsigned int head;
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};
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#endif
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