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b98db05f9b
2008-02-17 Soren Sandmann <sandmann@redhat.com> * collector.c (lookup_symbol): Add commented out code to reject callback. * elfparser.c (struct ElfParser): Store the filename if any (elf_parser_get_sym_address): Subtract the load address, so the result will be an offset into the text section. * process.[ch] (process_lookup_symbol): Add an offset out-argument * binfile.[ch] (bin_symbol_get_address): New function * TODO: updates svn path=/trunk/; revision=397
65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
/* MemProf -- memory profiler and leak detector
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* Copyright 1999, 2000, 2001, Red Hat, Inc.
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* Copyright 2002, Kristian Rietveld
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*
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* 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 PROCESS_H
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#define PROCESS_H
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#include <glib.h>
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#include "binfile.h"
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typedef struct Process Process;
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/* We are making the assumption that pid's are not recycled during
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* a profiling run. That is wrong, but necessary to avoid reading
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* from /proc/<pid>/maps on every sample (which would be a race
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* condition anyway).
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*
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* If the address passed to new_from_pid() is somewhere that hasn't
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* been checked before, the mappings are reread for the Process. This
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* means that if some previously sampled pages have been unmapped,
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* they will be lost and appear as "???" on the profile.
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*
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* To flush the pid cache, call process_flush_caches().
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* This will invalidate all instances of Process.
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*
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* The real fix for this is probably to have the kernel module report the
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* maps along with the stacktrace.
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*
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*/
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Process * process_get_from_pid (int pid);
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void process_ensure_map (Process *process,
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int pid,
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gulong address);
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const char * process_lookup_symbol (Process *process,
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gulong address,
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gulong *offset);
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const char * process_get_cmdline (Process *process);
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void process_flush_caches (void);
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const guint8 *process_get_vdso_bytes (gsize *length);
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gboolean process_is_kernel_address (gulong address);
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const char * process_lookup_kernel_symbol (gulong address,
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gulong *offset);
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#endif
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