Project import
diff --git a/showmap/Android.mk b/showmap/Android.mk new file mode 100644 index 0000000..44ca818 --- /dev/null +++ b/showmap/Android.mk
@@ -0,0 +1,12 @@ +# Copyright 2006 The Android Open Source Project + +LOCAL_PATH:= $(call my-dir) +include $(CLEAR_VARS) + +LOCAL_SRC_FILES:= showmap.cpp +LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) +LOCAL_MODULE_TAGS := debug +LOCAL_MODULE:= showmap + +include $(BUILD_EXECUTABLE) +
diff --git a/showmap/MODULE_LICENSE_APACHE2 b/showmap/MODULE_LICENSE_APACHE2 new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/showmap/MODULE_LICENSE_APACHE2
diff --git a/showmap/NOTICE b/showmap/NOTICE new file mode 100644 index 0000000..c5b1efa --- /dev/null +++ b/showmap/NOTICE
@@ -0,0 +1,190 @@ + + Copyright (c) 2005-2008, The Android Open Source Project + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS +
diff --git a/showmap/showmap.cpp b/showmap/showmap.cpp new file mode 100644 index 0000000..d7d41b6 --- /dev/null +++ b/showmap/showmap.cpp
@@ -0,0 +1,358 @@ +#include <ctype.h> +#include <errno.h> +#include <fcntl.h> +#include <math.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +struct mapinfo { + mapinfo *next; + unsigned start; + unsigned end; + unsigned size; + unsigned rss; + unsigned pss; + unsigned shared_clean; + unsigned shared_dirty; + unsigned private_clean; + unsigned private_dirty; + unsigned swap; + int is_bss; + int count; + char name[1]; +}; + +static int is_library(const char *name) { + int len = strlen(name); + return len >= 4 && name[0] == '/' + && name[len - 3] == '.' && name[len - 2] == 's' && name[len - 1] == 'o'; +} + +// 6f000000-6f01e000 rwxp 00000000 00:0c 16389419 /android/lib/libcomposer.so +// 012345678901234567890123456789012345678901234567890123456789 +// 0 1 2 3 4 5 + +static int parse_header(const char* line, const mapinfo* prev, mapinfo** mi) { + unsigned long start; + unsigned long end; + char name[128]; + int name_pos; + int is_bss = 0; + + if (sscanf(line, "%lx-%lx %*s %*x %*x:%*x %*d%n", &start, &end, &name_pos) != 2) { + *mi = NULL; + return -1; + } + + while (isspace(line[name_pos])) { + name_pos += 1; + } + + if (line[name_pos]) { + strlcpy(name, line + name_pos, sizeof(name)); + } else { + if (prev && start == prev->end && is_library(prev->name)) { + // anonymous mappings immediately adjacent to shared libraries + // usually correspond to the library BSS segment, so we use the + // library's own name + strlcpy(name, prev->name, sizeof(name)); + is_bss = 1; + } else { + strlcpy(name, "[anon]", sizeof(name)); + } + } + + const int name_size = strlen(name) + 1; + struct mapinfo* info = reinterpret_cast<mapinfo*>(calloc(1, sizeof(mapinfo) + name_size)); + if (info == NULL) { + fprintf(stderr, "out of memory\n"); + exit(1); + } + + info->start = start; + info->end = end; + info->is_bss = is_bss; + info->count = 1; + strlcpy(info->name, name, name_size); + + *mi = info; + return 0; +} + +static int parse_field(mapinfo* mi, const char* line) { + char field[64]; + int len; + + if (sscanf(line, "%63s %n", field, &len) == 1 + && *field && field[strlen(field) - 1] == ':') { + int size; + if (sscanf(line + len, "%d kB", &size) == 1) { + if (!strcmp(field, "Size:")) { + mi->size = size; + } else if (!strcmp(field, "Rss:")) { + mi->rss = size; + } else if (!strcmp(field, "Pss:")) { + mi->pss = size; + } else if (!strcmp(field, "Shared_Clean:")) { + mi->shared_clean = size; + } else if (!strcmp(field, "Shared_Dirty:")) { + mi->shared_dirty = size; + } else if (!strcmp(field, "Private_Clean:")) { + mi->private_clean = size; + } else if (!strcmp(field, "Private_Dirty:")) { + mi->private_dirty = size; + } else if (!strcmp(field, "Swap:")) { + mi->swap = size; + } + } + return 0; + } + return -1; +} + +static int order_before(const mapinfo *a, const mapinfo *b, int sort_by_address) { + if (sort_by_address) { + return a->start < b->start + || (a->start == b->start && a->end < b->end); + } else { + return strcmp(a->name, b->name) < 0; + } +} + +static void enqueue_map(mapinfo **head, mapinfo *map, int sort_by_address, int coalesce_by_name) { + mapinfo *prev = NULL; + mapinfo *current = *head; + + if (!map) { + return; + } + + for (;;) { + if (current && coalesce_by_name && !strcmp(map->name, current->name)) { + current->size += map->size; + current->rss += map->rss; + current->pss += map->pss; + current->shared_clean += map->shared_clean; + current->shared_dirty += map->shared_dirty; + current->private_clean += map->private_clean; + current->private_dirty += map->private_dirty; + current->swap += map->swap; + current->is_bss &= map->is_bss; + current->count++; + free(map); + break; + } + + if (!current || order_before(map, current, sort_by_address)) { + if (prev) { + prev->next = map; + } else { + *head = map; + } + map->next = current; + break; + } + + prev = current; + current = current->next; + } +} + +static mapinfo *load_maps(int pid, int sort_by_address, int coalesce_by_name) +{ + char fn[128]; + FILE *fp; + char line[1024]; + mapinfo *head = NULL; + mapinfo *current = NULL; + int len; + + snprintf(fn, sizeof(fn), "/proc/%d/smaps", pid); + fp = fopen(fn, "r"); + if (fp == 0) { + fprintf(stderr, "cannot open /proc/%d/smaps: %s\n", pid, strerror(errno)); + return NULL; + } + + while (fgets(line, sizeof(line), fp) != 0) { + len = strlen(line); + if (line[len - 1] == '\n') { + line[--len] = 0; + } + + if (current != NULL && !parse_field(current, line)) { + continue; + } + + mapinfo *next; + if (!parse_header(line, current, &next)) { + enqueue_map(&head, current, sort_by_address, coalesce_by_name); + current = next; + continue; + } + + fprintf(stderr, "warning: could not parse map info line: %s\n", line); + } + + enqueue_map(&head, current, sort_by_address, coalesce_by_name); + + fclose(fp); + + if (!head) { + fprintf(stderr, "could not read /proc/%d/smaps\n", pid); + return NULL; + } + + return head; +} + +static bool verbose = false; +static bool terse = false; +static bool addresses = false; + +static void print_header() +{ + const char *addr1 = addresses ? " start end " : ""; + const char *addr2 = addresses ? " addr addr " : ""; + + printf("%s virtual shared shared private private\n", addr1); + printf("%s size RSS PSS clean dirty clean dirty swap ", addr2); + if (!verbose && !addresses) { + printf(" # "); + } + printf("object\n"); +} + +static void print_divider() +{ + if (addresses) { + printf("-------- -------- "); + } + printf("-------- -------- -------- -------- -------- -------- -------- -------- "); + if (!verbose && !addresses) { + printf("---- "); + } + printf("------------------------------\n"); +} + +static void print_mi(mapinfo *mi, bool total) +{ + if (addresses) { + if (total) { + printf(" "); + } else { + printf("%08x %08x ", mi->start, mi->end); + } + } + printf("%8d %8d %8d %8d %8d %8d %8d %8d ", mi->size, + mi->rss, + mi->pss, + mi->shared_clean, mi->shared_dirty, + mi->private_clean, mi->private_dirty, mi->swap); + if (!verbose && !addresses) { + printf("%4d ", mi->count); + } +} + +static int show_map(int pid) +{ + mapinfo total; + memset(&total, 0, sizeof(total)); + + mapinfo *milist = load_maps(pid, addresses, !verbose && !addresses); + if (milist == NULL) { + return 1; + } + + print_header(); + print_divider(); + + for (mapinfo *mi = milist; mi;) { + mapinfo* last = mi; + + total.shared_clean += mi->shared_clean; + total.shared_dirty += mi->shared_dirty; + total.private_clean += mi->private_clean; + total.private_dirty += mi->private_dirty; + total.swap += mi->swap; + total.rss += mi->rss; + total.pss += mi->pss; + total.size += mi->size; + total.count += mi->count; + + if (terse && !mi->private_dirty) { + goto out; + } + + print_mi(mi, false); + printf("%s%s\n", mi->name, mi->is_bss ? " [bss]" : ""); + +out: + mi = mi->next; + free(last); + } + + print_divider(); + print_header(); + print_divider(); + + print_mi(&total, true); + printf("TOTAL\n"); + + return 0; +} + +int main(int argc, char *argv[]) +{ + int usage = 1; + int result = 0; + int pid; + char *arg; + char *argend; + + signal(SIGPIPE, SIG_IGN); + for (argc--, argv++; argc > 0; argc--, argv++) { + arg = argv[0]; + if (!strcmp(arg,"-v")) { + verbose = true; + continue; + } + if (!strcmp(arg,"-t")) { + terse = true; + continue; + } + if (!strcmp(arg,"-a")) { + addresses = true; + continue; + } + if (argc != 1) { + fprintf(stderr, "too many arguments\n"); + break; + } + pid = strtol(arg, &argend, 10); + if (*arg && !*argend) { + usage = 0; + if (show_map(pid)) { + result = 1; + } + break; + } + fprintf(stderr, "unrecognized argument: %s\n", arg); + break; + } + + if (usage) { + fprintf(stderr, + "showmap [-t] [-v] [-c] <pid>\n" + " -t = terse (show only items with private pages)\n" + " -v = verbose (don't coalesce maps with the same name)\n" + " -a = addresses (show virtual memory map)\n" + ); + result = 1; + } + + return result; +}