X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/daf9d10c7877d35670e36e52be8a5207706d3bb1..c73aeef05e1a3702e23296f6ff6690d6d408543b:/src/mc/memory_map.c diff --git a/src/mc/memory_map.c b/src/mc/memory_map.c index 9e987f0f07..04538dda26 100644 --- a/src/mc/memory_map.c +++ b/src/mc/memory_map.c @@ -1,5 +1,9 @@ -#define _GNU_SOURCE -#include "private.h" +/* Copyright (c) 2008-2013 Da SimGrid Team. All rights reserved. */ + +/* This program is free software; you can redistribute it and/or modify it + * under the terms of the license (GNU LGPL) which comes with this package. */ + +#include "mc_private.h" #include XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_memory_map, mc, @@ -10,33 +14,32 @@ memory_map_t get_memory_map(void) FILE *fp; /* File pointer to process's proc maps file */ char *line = NULL; /* Temporal storage for each line that is readed */ ssize_t read; /* Number of bytes readed */ - size_t n = 0; /* Amount of bytes to read by getline */ + size_t n = 0; /* Amount of bytes to read by xbt_getline */ memory_map_t ret = NULL; /* The memory map to return */ /* The following variables are used during the parsing of the file "maps" */ - s_map_region memreg; /* temporal map region used for creating the map */ + s_map_region_t memreg; /* temporal map region used for creating the map */ char *lfields[6], *tok, *endptr; int i; - char *backup_line = NULL; - /* Open the actual process's proc maps file and create the memory_map_t */ /* to be returned. */ fp = fopen("/proc/self/maps", "r"); + if(fp == NULL) + perror("fopen failed"); + xbt_assert(fp, "Cannot open /proc/self/maps to investigate the memory map of the process. Please report this bug."); - //XBT_DEBUG("/proc/self/maps"); + setbuf(fp, NULL); ret = xbt_new0(s_memory_map_t, 1); /* Read one line at the time, parse it and add it to the memory map to be returned */ - while ((read = getline(&line, &n, fp)) != -1) { + while ((read = xbt_getline(&line, &n, fp)) != -1) { - //XBT_INFO("%s", line); - if(XBT_LOG_ISENABLED(mc_memory_map, xbt_log_priority_debug)) - backup_line = strdup(line); + //fprintf(stderr,"%s", line); /* Wipeout the new line character */ line[read - 1] = '\0'; @@ -143,25 +146,21 @@ memory_map_t get_memory_map(void) memcpy(ret->regions + ret->mapsize, &memreg, sizeof(memreg)); ret->mapsize++; - if(XBT_LOG_ISENABLED(mc_memory_map, xbt_log_priority_debug)){ - if ((memreg.prot & PROT_WRITE)){ - if (memreg.pathname == NULL){ - if (memreg.start_addr == std_heap){ - XBT_DEBUG("New region in snapshot : %s", backup_line); - } - } else { - if (!memcmp(basename(memreg.pathname), "libsimgrid", 10)){ - XBT_DEBUG("New region in snapshot : %s", backup_line); - } - } - } - } - - } - if (line) - free(line); + free(line); + + fclose(fp); return ret; } + +void free_memory_map(memory_map_t map){ + + int i; + for(i=0; i< map->mapsize; i++){ + xbt_free(map->regions[i].pathname); + } + xbt_free(map->regions); + xbt_free(map); +}