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Makefile
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Makefile.depend
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libpmcstat.h
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libpmcstat_event.c
(2.49 KB)
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libpmcstat_image.c
(14.16 KB)
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libpmcstat_logging.c
(17.73 KB)
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libpmcstat_process.c
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libpmcstat_string.c
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libpmcstat_symbol.c
(3.85 KB)
Editing: libpmcstat_symbol.c
/*- * Copyright (c) 2003-2008 Joseph Koshy * Copyright (c) 2017 Ruslan Bukin <br@bsdpad.com> * All rights reserved. * * This software was developed by BAE Systems, the University of Cambridge * Computer Laboratory, and Memorial University under DARPA/AFRL contract * FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing * (TC) research program. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/types.h> #include <sys/cpuset.h> #include <sys/event.h> #include <sys/param.h> #include <sys/socket.h> #include <sys/stat.h> #include <sys/module.h> #include <sys/pmc.h> #include <assert.h> #include <err.h> #include <pmc.h> #include <pmclog.h> #include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include "libpmcstat.h" struct pmcstat_symbol * pmcstat_symbol_search_by_name(struct pmcstat_process *pp, const char *pi_name, const char *name, uintptr_t *addr_start, uintptr_t *addr_end) { struct pmcstat_symbol *sym; struct pmcstat_image *image; struct pmcstat_pcmap *pcm; const char *name1; const char *name2; bool found; size_t i; found = 0; if (pp == NULL) return (NULL); TAILQ_FOREACH(pcm, &pp->pp_map, ppm_next) { image = pcm->ppm_image; if (image->pi_name == NULL) continue; name1 = pmcstat_string_unintern(image->pi_name); if (strcmp(name1, pi_name) == 0) { found = 1; break; } } if (!found || image->pi_symbols == NULL) return (NULL); found = 0; for (i = 0; i < image->pi_symcount; i++) { sym = &image->pi_symbols[i]; name2 = pmcstat_string_unintern(sym->ps_name); if (strcmp(name2, name) == 0) { found = 1; break; } } if (!found) return (NULL); *addr_start = (image->pi_vaddr - image->pi_start + pcm->ppm_lowpc + sym->ps_start); *addr_end = (image->pi_vaddr - image->pi_start + pcm->ppm_lowpc + sym->ps_end); return (sym); } /* * Helper function. */ int pmcstat_symbol_compare(const void *a, const void *b) { const struct pmcstat_symbol *sym1, *sym2; sym1 = (const struct pmcstat_symbol *) a; sym2 = (const struct pmcstat_symbol *) b; if (sym1->ps_end <= sym2->ps_start) return (-1); if (sym1->ps_start >= sym2->ps_end) return (1); return (0); } /* * Map an address to a symbol in an image. */ struct pmcstat_symbol * pmcstat_symbol_search(struct pmcstat_image *image, uintfptr_t addr) { struct pmcstat_symbol sym; if (image->pi_symbols == NULL) return (NULL); sym.ps_name = NULL; sym.ps_start = addr; sym.ps_end = addr + 1; return (bsearch((void *) &sym, image->pi_symbols, image->pi_symcount, sizeof(struct pmcstat_symbol), pmcstat_symbol_compare)); }
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