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. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. 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;
+}
