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Diffstat (limited to 'sal/osl/android/jni/lo-bootstrap.c')
-rw-r--r--sal/osl/android/jni/lo-bootstrap.c1041
1 files changed, 0 insertions, 1041 deletions
diff --git a/sal/osl/android/jni/lo-bootstrap.c b/sal/osl/android/jni/lo-bootstrap.c
deleted file mode 100644
index d9c1e32958ab..000000000000
--- a/sal/osl/android/jni/lo-bootstrap.c
+++ /dev/null
@@ -1,1041 +0,0 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-/*
- * Version: MPL 1.1 / GPLv3+ / LGPLv3+
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License or as specified alternatively below. You may obtain a copy of
- * the License at http: *www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * Major Contributor(s):
- * Copyright (C) 2011 Tor Lillqvist <tml@iki.fi> (initial developer)
- * Copyright (C) 2011 SUSE Linux http://suse.com (initial developer's employer)
- *
- * Zip parsing code lifted from Mozilla's other-licenses/android/APKOpen.cpp,
- * by Michael Wu <mwu@mozilla.com>.
- *
- * All Rights Reserved.
- *
- * For minor contributions see the git repository.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
- * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
- * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
- * instead of those above.
- */
-
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <sys/stat.h>
-
-#include <unistd.h>
-#include <fcntl.h>
-#include <dlfcn.h>
-#include <sys/mman.h>
-
-#include <jni.h>
-
-#include <linux/elf.h>
-
-#include <android/log.h>
-
-#include "lo-bootstrap.h"
-
-#include "android_native_app_glue.c"
-
-#undef LOGI
-#undef LOGW
-
-#define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "lo-bootstrap", __VA_ARGS__))
-#define LOGW(...) ((void)__android_log_print(ANDROID_LOG_WARN, "lo-bootstrap", __VA_ARGS__))
-#define LOGE(...) ((void)__android_log_print(ANDROID_LOG_ERROR, "lo-bootstrap", __VA_ARGS__))
-#define LOGF(...) ((void)__android_log_print(ANDROID_LOG_FATAL, "lo-bootstrap", __VA_ARGS__))
-
-#define ROUND_DOWN(ptr,multiple) (void *)(((unsigned) (ptr)) & ~((multiple)-1))
-
-struct engine {
- int dummy;
-};
-
-static struct android_app *app;
-static const char **library_locations;
-static void *apk_file;
-static int apk_file_size;
-static int (*lo_main)(int, const char **);
-static int lo_main_argc;
-static const char **lo_main_argv;
-static int sleep_time = 0;
-
-/* Zip data structures */
-
-/* compression methods */
-#define STORE 0
-#define DEFLATE 8
-#define LZMA 14
-
-struct local_file_header {
- uint32_t signature;
- uint16_t min_version;
- uint16_t general_flag;
- uint16_t compression;
- uint16_t lastmod_time;
- uint16_t lastmod_date;
- uint32_t crc32;
- uint32_t compressed_size;
- uint32_t uncompressed_size;
- uint16_t filename_size;
- uint16_t extra_field_size;
- char data[0];
-} __attribute__((__packed__));
-
-struct cdir_entry {
- uint32_t signature;
- uint16_t creator_version;
- uint16_t min_version;
- uint16_t general_flag;
- uint16_t compression;
- uint16_t lastmod_time;
- uint16_t lastmod_date;
- uint32_t crc32;
- uint32_t compressed_size;
- uint32_t uncompressed_size;
- uint16_t filename_size;
- uint16_t extra_field_size;
- uint16_t file_comment_size;
- uint16_t disk_num;
- uint16_t internal_attr;
- uint32_t external_attr;
- uint32_t offset;
- char data[0];
-} __attribute__((__packed__));
-
-#define CDIR_END_SIG 0x06054b50
-
-struct cdir_end {
- uint32_t signature;
- uint16_t disk_num;
- uint16_t cdir_disk;
- uint16_t disk_entries;
- uint16_t cdir_entries;
- uint32_t cdir_size;
- uint32_t cdir_offset;
- uint16_t comment_size;
- char comment[0];
-} __attribute__((__packed__));
-
-/* End of Zip data structures */
-
-static void
-engine_handle_cmd(struct android_app* app,
- int32_t cmd)
-{
- struct engine* engine = (struct engine*)app->userData;
- switch (cmd) {
- case APP_CMD_SAVE_STATE:
- break;
- case APP_CMD_INIT_WINDOW:
- break;
- case APP_CMD_TERM_WINDOW:
- break;
- case APP_CMD_GAINED_FOCUS:
- break;
- case APP_CMD_LOST_FOCUS:
- break;
- }
-}
-
-static char *
-read_section(int fd,
- Elf32_Shdr *shdr)
-{
- char *result;
-
- result = malloc(shdr->sh_size);
- if (lseek(fd, shdr->sh_offset, SEEK_SET) < 0) {
- close(fd);
- free(result);
- return NULL;
- }
- if (read(fd, result, shdr->sh_size) < shdr->sh_size) {
- close(fd);
- free(result);
- return NULL;
- }
-
- return result;
-}
-
-static void
-free_ptrarray(void **pa)
-{
- void **rover = pa;
-
- while (*rover != NULL)
- free(*rover++);
-
- free(pa);
-}
-
-jobjectArray
-Java_org_libreoffice_android_Bootstrap_dlneeds(JNIEnv* env,
- jobject clazz,
- jstring library)
-{
- char **needed;
- int n_needed;
- const jbyte *libName;
- jclass String;
- jobjectArray result;
-
- libName = (*env)->GetStringUTFChars(env, library, NULL);
-
- needed = lo_dlneeds(libName);
-
- (*env)->ReleaseStringUTFChars(env, library, libName);
-
- if (needed == NULL)
- return NULL;
-
- n_needed = 0;
- while (needed[n_needed] != NULL)
- n_needed++;
-
- /* Allocate return value */
-
- String = (*env)->FindClass(env, "java/lang/String");
- if (String == NULL) {
- LOGE("Could not find the String class");
- free_ptrarray((void **) needed);
- return NULL;
- }
-
- result = (*env)->NewObjectArray(env, n_needed, String, NULL);
- if (result == NULL) {
- LOGE("Could not create the String array");
- free_ptrarray((void **) needed);
- return NULL;
- }
-
- for (n_needed = 0; needed[n_needed] != NULL; n_needed++)
- (*env)->SetObjectArrayElement(env, result, n_needed, (*env)->NewStringUTF(env, needed[n_needed]));
-
- free_ptrarray((void **) needed);
-
- return result;
-}
-
-jint
-Java_org_libreoffice_android_Bootstrap_dlopen(JNIEnv* env,
- jobject clazz,
- jstring library)
-{
- const jbyte *libName = (*env)->GetStringUTFChars(env, library, NULL);
- void *p = lo_dlopen (libName);
-
- (*env)->ReleaseStringUTFChars(env, library, libName);
-
- return (jint) p;
-}
-
-jint
-Java_org_libreoffice_android_Bootstrap_dlsym(JNIEnv* env,
- jobject clazz,
- jint handle,
- jstring symbol)
-{
- const jbyte *symName = (*env)->GetStringUTFChars(env, symbol, NULL);
- void *p = lo_dlsym ((void *) handle, symName);
-
- (*env)->ReleaseStringUTFChars(env, symbol, symName);
-
- return (jint) p;
-}
-
-jint
-Java_org_libreoffice_android_Bootstrap_dlcall(JNIEnv* env,
- jobject clazz,
- jint function,
- jobject argument)
-{
- jclass StringArray = (*env)->FindClass(env, "[Ljava/lang/String;");
-
- if (StringArray == NULL) {
- LOGE("Could not find String[] class");
- return 0;
- }
-
- if ((*env)->IsInstanceOf(env, argument, StringArray)) {
- int argc = (*env)->GetArrayLength(env, argument);
- const char **argv = malloc(sizeof(char *) * (argc+1));
- int i, result;
- for (i = 0; i < argc; i++) {
- argv[i] = (*env)->GetStringUTFChars(env, (*env)->GetObjectArrayElement(env, argument, i), NULL);
- /* LOGI("argv[%d] = %s", i, argv[i]); */
- }
- argv[argc] = NULL;
-
- result = lo_dlcall_argc_argv((void *) function, argc, argv);
-
- for (i = 0; i < argc; i++)
- (*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, argument, i), argv[i]);
-
- free(argv);
- return result;
- }
-
- return 0;
-}
-
-// public static native boolean setup(String dataDir,
-// String apkFile,
-// String[] ld_library_path);
-
-jboolean
-Java_org_libreoffice_android_Bootstrap_setup__Ljava_lang_String_2Ljava_lang_String_2_3Ljava_lang_String_2
- (JNIEnv* env,
- jobject clazz,
- jstring dataDir,
- jstring apkFile,
- jobjectArray ld_library_path)
-{
- struct stat st;
- int i, n, fd;
- const jbyte *dataDirPath;
- const jbyte *apkFilePath;
- char *lib_dir;
-
- n = (*env)->GetArrayLength(env, ld_library_path);
-
- library_locations = malloc((n+2) * sizeof(char *));
-
- dataDirPath = (*env)->GetStringUTFChars(env, dataDir, NULL);
-
- lib_dir = malloc(strlen(dataDirPath) + 5);
- strcpy(lib_dir, dataDirPath);
- strcat(lib_dir, "/lib");
-
- (*env)->ReleaseStringUTFChars(env, dataDir, dataDirPath);
-
- library_locations[0] = lib_dir;
-
- for (i = 0; i < n; i++) {
- const jbyte *s = (*env)->GetStringUTFChars(env, (*env)->GetObjectArrayElement(env, ld_library_path, i), NULL);
- library_locations[i+1] = strdup(s);
- (*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, ld_library_path, i), s);
- }
-
- library_locations[n+1] = NULL;
-
- for (n = 0; library_locations[n] != NULL; n++)
- LOGI("library_locations[%d] = %s", n, library_locations[n]);
-
- apkFilePath = (*env)->GetStringUTFChars(env, apkFile, NULL);
-
- fd = open(apkFilePath, O_RDONLY);
- if (fd == -1) {
- LOGE("Could not open %s", apkFilePath);
- (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
- return JNI_FALSE;
- }
- if (fstat(fd, &st) == -1) {
- LOGE("Could not fstat %s", apkFilePath);
- close(fd);
- (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
- return JNI_FALSE;
- }
- apk_file = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
- close(fd);
-
- if (apk_file == MAP_FAILED) {
- LOGE("Could not mmap %s", apkFilePath);
- (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
- return JNI_FALSE;
- }
- apk_file_size = st.st_size;
-
- (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
-
- return JNI_TRUE;
-}
-
-// public statuc native boolean setup(int lo_main_ptr,
-// Object lo_main_argument,
-// int lo_main_delay);
-
-jboolean
-Java_org_libreoffice_android_Bootstrap_setup__ILjava_lang_Object_2I(JNIEnv* env,
- jobject clazz,
- void *lo_main_ptr,
- jobject lo_main_argument,
- jint lo_main_delay)
-{
- jclass StringArray;
- int i;
-
- lo_main = lo_main_ptr;
-
- StringArray = (*env)->FindClass(env, "[Ljava/lang/String;");
- if (StringArray == NULL) {
- LOGE("Could not find String[] class");
- return JNI_FALSE;
- }
-
- if (!(*env)->IsInstanceOf(env, lo_main_argument, StringArray)) {
- LOGE("lo_main_argument is not a String[]?");
- return JNI_FALSE;
- }
-
- lo_main_argc = (*env)->GetArrayLength(env, lo_main_argument);
- lo_main_argv = malloc(sizeof(char *) * (lo_main_argc+1));
-
- for (i = 0; i < lo_main_argc; i++) {
- const jbyte *s = (*env)->GetStringUTFChars(env, (*env)->GetObjectArrayElement(env, lo_main_argument, i), NULL);
- lo_main_argv[i] = strdup(s);
- (*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, lo_main_argument, i), s);
- /* LOGI("argv[%d] = %s", i, lo_main_argv[i]); */
- }
- lo_main_argv[lo_main_argc] = NULL;
-
- sleep_time = lo_main_delay;
-
- return JNI_TRUE;
-}
-
-// public static native int getpid();
-
-jint
-Java_org_libreoffice_android_Bootstrap_getpid(JNIEnv* env,
- jobject clazz)
-{
- return getpid();
-}
-
-
-// public static native void system(String cmdline);
-
-jint
-Java_org_libreoffice_android_Bootstrap_system(JNIEnv* env,
- jobject clazz,
- jstring cmdline)
-{
- const jbyte *s = (*env)->GetStringUTFChars(env, cmdline, NULL);
-
- LOGI("system(%s)", s);
-
- system(s);
-
- (*env)->ReleaseStringUTFChars(env, cmdline, s);
-}
-
-char **
-lo_dlneeds(const char *library)
-{
- int i, fd;
- int n_needed;
- char **result;
- char *shstrtab, *dynstr;
- Elf32_Ehdr hdr;
- Elf32_Shdr shdr;
- Elf32_Dyn dyn;
-
- /* Open library and read ELF header */
-
- fd = open(library, O_RDONLY);
-
- if (fd == -1) {
- LOGE("lo_dlneeds: Could not open library %s: %s", library, strerror(errno));
- return NULL;
- }
-
- if (read(fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
- LOGE("lo_dlneeds: Could not read ELF header of %s", library);
- close(fd);
- return NULL;
- }
-
- /* Read in .shstrtab */
-
- if (lseek(fd, hdr.e_shoff + hdr.e_shstrndx * sizeof(shdr), SEEK_SET) < 0) {
- LOGE("lo_dlneeds: Could not seek to .shstrtab section header of %s", library);
- close(fd);
- return NULL;
- }
- if (read(fd, &shdr, sizeof(shdr)) < sizeof(shdr)) {
- LOGE("lo_dlneeds: Could not read section header of %s", library);
- close(fd);
- return NULL;
- }
-
- shstrtab = read_section(fd, &shdr);
- if (shstrtab == NULL)
- return NULL;
-
- /* Read section headers, looking for .dynstr section */
-
- if (lseek(fd, hdr.e_shoff, SEEK_SET) < 0) {
- LOGE("lo_dlneeds: Could not seek to section headers of %s", library);
- close(fd);
- return NULL;
- }
- for (i = 0; i < hdr.e_shnum; i++) {
- if (read(fd, &shdr, sizeof(shdr)) < sizeof(shdr)) {
- LOGE("lo_dlneeds: Could not read section header of %s", library);
- close(fd);
- return NULL;
- }
- if (shdr.sh_type == SHT_STRTAB &&
- strcmp(shstrtab + shdr.sh_name, ".dynstr") == 0) {
- dynstr = read_section(fd, &shdr);
- if (dynstr == NULL) {
- free(shstrtab);
- return NULL;
- }
- break;
- }
- }
-
- if (i == hdr.e_shnum) {
- LOGE("lo_dlneeds: No .dynstr section in %s", library);
- close(fd);
- return NULL;
- }
-
- /* Read section headers, looking for .dynamic section */
-
- if (lseek(fd, hdr.e_shoff, SEEK_SET) < 0) {
- LOGE("lo_dlneeds: Could not seek to section headers of %s", library);
- close(fd);
- return NULL;
- }
- for (i = 0; i < hdr.e_shnum; i++) {
- if (read(fd, &shdr, sizeof(shdr)) < sizeof(shdr)) {
- LOGE("lo_dlneeds: Could not read section header of %s", library);
- close(fd);
- return NULL;
- }
- if (shdr.sh_type == SHT_DYNAMIC) {
- int dynoff;
- int *libnames;
-
- /* Count number of DT_NEEDED entries */
- n_needed = 0;
- if (lseek(fd, shdr.sh_offset, SEEK_SET) < 0) {
- LOGE("lo_dlneeds: Could not seek to .dynamic section of %s", library);
- close(fd);
- return NULL;
- }
- for (dynoff = 0; dynoff < shdr.sh_size; dynoff += sizeof(dyn)) {
- if (read(fd, &dyn, sizeof(dyn)) < sizeof(dyn)) {
- LOGE("lo_dlneeds: Could not read .dynamic entry of %s", library);
- close(fd);
- return NULL;
- }
- if (dyn.d_tag == DT_NEEDED)
- n_needed++;
- }
-
- /* LOGI("Found %d DT_NEEDED libs", n_needed); */
-
- result = malloc((n_needed+1) * sizeof(char *));
-
- n_needed = 0;
- if (lseek(fd, shdr.sh_offset, SEEK_SET) < 0) {
- LOGE("lo_dlneeds: Could not seek to .dynamic section of %s", library);
- close(fd);
- free(result);
- return NULL;
- }
- for (dynoff = 0; dynoff < shdr.sh_size; dynoff += sizeof(dyn)) {
- if (read(fd, &dyn, sizeof(dyn)) < sizeof(dyn)) {
- LOGE("lo_dlneeds: Could not read .dynamic entry in %s", library);
- close(fd);
- free(result);
- return NULL;
- }
- if (dyn.d_tag == DT_NEEDED) {
- /* LOGI("needs: %s\n", dynstr + dyn.d_un.d_val); */
- result[n_needed] = strdup(dynstr + dyn.d_un.d_val);
- n_needed++;
- }
- }
-
- close(fd);
- free(dynstr);
- free(shstrtab);
- result[n_needed] = NULL;
- return result;
- }
- }
-
- LOGE("lo_dlneeds: Could not find .dynamic section in %s", library);
- close(fd);
- return NULL;
-}
-
-void *
-lo_dlopen(const char *library)
-{
- /*
- * We should *not* try to just dlopen() the bare library name
- * first, as the stupid dynamic linker remembers for each library
- * basename if loading it has failed. Thus if you try loading it
- * once, and it fails because of missing needed libraries, and
- * your load those, and then try again, it fails with an
- * infuriating message "failed to load previously" in the log.
- *
- * We *must* first dlopen() all needed libraries, recursively. It
- * shouldn't matter if we dlopen() a library that already is
- * loaded, dlopen() just returns the same value then.
- */
-
- typedef struct loadedLib {
- const char *name;
- void *handle;
- struct loadedLib *next;
- } *loadedLib;
- static loadedLib loaded_libraries = NULL;
-
- loadedLib rover;
- loadedLib new_loaded_lib;
-
- struct stat st;
- void *p;
- char *full_name;
- char **needed;
- int i;
- int found;
-
- rover = loaded_libraries;
- while (rover != NULL &&
- strcmp(rover->name, library) != 0)
- rover = rover->next;
-
- if (rover != NULL)
- return rover->handle;
-
- /* LOGI("lo_dlopen(%s)", library); */
-
- found = 0;
- if (library[0] == '/') {
- full_name = strdup(library);
-
- if (stat(full_name, &st) == 0 &&
- S_ISREG(st.st_mode))
- found = 1;
- else
- free(full_name);
- } else {
- for (i = 0; !found && library_locations[i] != NULL; i++) {
- full_name = malloc(strlen(library_locations[i]) + 1 + strlen(library) + 1);
- strcpy(full_name, library_locations[i]);
- strcat(full_name, "/");
- strcat(full_name, library);
-
- if (stat(full_name, &st) == 0 &&
- S_ISREG(st.st_mode))
- found = 1;
- else
- free(full_name);
- }
- }
-
- if (!found) {
- LOGE("lo_dlopen: Library %s not found", library);
- return NULL;
- }
-
- needed = lo_dlneeds(full_name);
- if (needed == NULL) {
- free(full_name);
- return NULL;
- }
-
- for (i = 0; needed[i] != NULL; i++) {
- if (lo_dlopen(needed[i]) == NULL) {
- free_ptrarray((void **) needed);
- free(full_name);
- return NULL;
- }
- }
- free_ptrarray((void **) needed);
-
- p = dlopen(full_name, RTLD_LOCAL);
- LOGI("dlopen(%s) = %p", full_name, p);
- free(full_name);
- if (p == NULL)
- LOGE("lo_dlopen: Error from dlopen(%s): %s", library, dlerror());
-
- new_loaded_lib = malloc(sizeof(*new_loaded_lib));
- new_loaded_lib->name = strdup(library);
- new_loaded_lib->handle = p;
-
- new_loaded_lib->next = loaded_libraries;
- loaded_libraries = new_loaded_lib;
-
- return p;
-}
-
-void *
-lo_dlsym(void *handle,
- const char *symbol)
-{
- void *p = dlsym(handle, symbol);
- /* LOGI("dlsym(%p, %s) = %p", handle, symbol, p); */
- if (p == NULL)
- LOGE("lo_dlsym: %s", dlerror());
- return p;
-}
-
-int
-lo_dladdr(void *addr,
- Dl_info *info)
-{
- FILE *maps;
- char line[200];
- int result;
- int found;
-
- result = dladdr(addr, info);
- if (result == 0) {
- /* LOGI("dladdr(%p) = 0", addr); */
- return 0;
- }
-
- maps = fopen("/proc/self/maps", "r");
- if (maps == NULL) {
- LOGE("lo_dladdr: Could not open /proc/self/maps: %s", strerror(errno));
- return 0;
- }
-
- found = 0;
- while (fgets(line, sizeof(line), maps) != NULL &&
- line[strlen(line)-1] == '\n') {
- void *lo, *hi;
- char file[sizeof(line)];
- file[0] = '\0';
- if (sscanf(line, "%x-%x %*s %*x %*x:%*x %*d %[^\n]", &lo, &hi, file) == 3) {
- /* LOGI("got %p-%p: %s", lo, hi, file); */
- if (addr >= lo && addr < hi) {
- if (info->dli_fbase != lo) {
- LOGE("lo_dladdr: Base for %s in /proc/self/maps %p doesn't match what dladdr() said", file, lo);
- fclose(maps);
- return 0;
- }
- /* LOGI("dladdr(%p) = { %s:%p, %s:%p }: %s",
- addr,
- info->dli_fname, info->dli_fbase,
- info->dli_sname ? info->dli_sname : "(none)", info->dli_saddr,
- file); */
- info->dli_fname = strdup(file);
- found = 1;
- break;
- }
- }
- }
- if (!found)
- LOGE("lo_dladdr: Did not find %p in /proc/self/maps", addr);
- fclose(maps);
-
- return result;
-}
-
-static uint32_t cdir_entry_size (struct cdir_entry *entry)
-{
- return sizeof(*entry) +
- letoh16(entry->filename_size) +
- letoh16(entry->extra_field_size) +
- letoh16(entry->file_comment_size);
-}
-
-static struct cdir_entry *
-find_cdir_entry (struct cdir_entry *entry, int count, const char *name)
-{
- size_t name_size = strlen(name);
- while (count--) {
- if (letoh16(entry->filename_size) == name_size &&
- !memcmp(entry->data, name, name_size))
- return entry;
- entry = (struct cdir_entry *)((char *)entry + cdir_entry_size(entry));
- }
- return NULL;
-}
-
-void *
-lo_apkentry(const char *filename,
- size_t *size)
-{
- struct cdir_end *dirend = (struct cdir_end *)((char *) apk_file + apk_file_size - sizeof(*dirend));
- uint32_t cdir_offset;
- uint16_t cdir_entries;
- struct cdir_entry *cdir_start;
- struct cdir_entry *entry;
- struct local_file_header *file;
- void *data;
-
- while ((void *)dirend > apk_file &&
- letoh32(dirend->signature) != CDIR_END_SIG)
- dirend = (struct cdir_end *)((char *)dirend - 1);
- if (letoh32(dirend->signature) != CDIR_END_SIG) {
- LOGE("lo_apkentry: Could not find end of central directory record");
- return;
- }
-
- cdir_offset = letoh32(dirend->cdir_offset);
- cdir_entries = letoh16(dirend->cdir_entries);
- cdir_start = (struct cdir_entry *)((char *)apk_file + cdir_offset);
-
- if (*filename == '/')
- filename++;
-
- entry = find_cdir_entry(cdir_start, cdir_entries, filename);
-
- if (entry == NULL) {
- LOGE("lo_apkentry: Could not find %s", filename);
- return NULL;
- }
- file = (struct local_file_header *)((char *)apk_file + letoh32(entry->offset));
-
- if (letoh16(file->compression) != STORE) {
- LOGE("lo_apkentry: File %s is compressed", filename);
- return NULL;
- }
-
- data = ((char *)&file->data) + letoh16(file->filename_size) + letoh16(file->extra_field_size);
- *size = file->uncompressed_size;
-
- /* LOGI("lo_apkentry(%s): %p, %d", filename, data, *size); */
-
- return data;
-}
-
-int
-lo_dlcall_argc_argv(void *function,
- int argc,
- const char **argv)
-{
- int (*fp)(int, const char **) = function;
- int result = fp(argc, argv);
-
- return result;
-}
-
-/* There is a bug in std::type_info::operator== and
- * std::type_info::before() in libgnustl_shared.so in NDK r7 at
- * least. They compare the type name pointers instead of comparing the
- * type name strings. See
- * http://code.google.com/p/android/issues/detail?id=22165 . So patch
- * that, poke in jumps to our own code snippets below instead.
- */
-
-/* Replacement std::type_info::operator== */
-
-__asm(" .arm\n"
- " .global replacement_operator_equals_arm\n"
- "replacement_operator_equals_arm:\n"
- " push {lr}\n"
-
- /* Load name pointers into r0 and r1 */
- " ldr r0, [r0, #4]\n"
- " ldr r1, [r1, #4]\n"
-
- /* First compare pointers */
- " cmp r0, r1\n"
-
- /* If equal, return true */
- " beq .L.equals.1\n"
-
- /* Otherwise call strcmp */
- " bl strcmp\n"
-
- /* And return true or false */
- " cmp r0, #0\n"
- " moveq r0, #1\n"
- " movne r0, #0\n"
- " b .L.equals.9\n"
-
- ".L.equals.1:\n"
- " mov r0, #1\n"
-
- ".L.equals.9:\n"
- " pop {pc}\n"
- );
-
-extern unsigned int replacement_operator_equals_arm;
-
-/* The ARM (not Thumb) code of the operator== in NDK r7 */
-static unsigned int expected_operator_equals_r7_code[] = {
- 0xe5903004, /* ldr r3, [r0, #4] */
- 0xe5910004, /* ldr r0, [r1, #4] */
- 0xe1530000, /* cmp r3, r0 */
- 0x13a00000, /* movne, #0 */
- 0x03a00001, /* moveq r0, #1 */
- 0xe12fff1e /* bx lr */
-};
-
-/* Ditto for std::type_info::before() */
-
-__asm(" .arm\n"
- " .global replacement_method_before_arm\n"
- "replacement_method_before_arm:\n"
- " push {lr}\n"
-
- /* Load name pointers into r0 and r1 */
- " ldr r0, [r0, #4]\n"
- " ldr r1, [r1, #4]\n"
-
- /* First compare pointers */
- " cmp r0, r1\n"
-
- /* If equal, return false */
- " beq .L.before.1\n"
-
- /* Otherwise call strcmp */
- " bl strcmp\n"
-
- /* And return true or false */
- " cmp r0, #0\n"
- " movlt r0, #1\n"
- " movge r0, #0\n"
- " b .L.before.9\n"
-
- ".L.before.1:\n"
- " mov r0, #0\n"
-
- ".L.before.9:\n"
- " pop {pc}\n"
- );
-
-extern unsigned int replacement_method_before_arm;
-
-static unsigned int expected_method_before_r7_code[] = {
- 0xe5903004, /* ldr r3, [r0, #4] */
- 0xe5910004, /* ldr r0, [r1, #4] */
- 0xe1530000, /* cmp r3, r0 */
- 0x23a00000, /* movcs r0, #0 */
- 0x33a00001, /* movcc r0, #1 */
- 0xe12fff1e /* bx lr */
-};
-
-static void
-patch(const char *symbol,
- const char *plaintext,
- unsigned *expected_code,
- size_t expected_code_size,
- unsigned *replacement_code)
-{
-
- void *libgnustl_shared;
- void *code;
-
- void *base;
- size_t size;
-
- /* libgnustl_shared.so should be already loaded as we build
- * all LO code against it, so as we have loaded the .so
- * containing lo_main() already, libgnustl_shared.so will have
- * been brought in, too.
- */
- libgnustl_shared = dlopen("libgnustl_shared.so", RTLD_LOCAL);
- if (libgnustl_shared == NULL) {
- LOGF("android_main: libgnustl_shared.so not mapped??");
- exit(0);
- }
-
- code = dlsym(libgnustl_shared, symbol);
- if (code == NULL) {
- LOGF("android_main: %s not found!?", plaintext);
- exit(0);
- }
- /* LOGI("%s is at %p", plaintext, operator_equals); */
-
- if ((((unsigned) code) & 0x03) != 0) {
- LOGE("android_main: Address of %s is not at word boundary, huh?", plaintext);
- return;
- }
-
- if ((((unsigned) &replacement_code) & 0x03) != 0) {
- LOGE("android_main: Address of replacement %s is not at word boundary, huh?", plaintext);
- return;
- }
-
- if (memcmp(code, expected_code, expected_code_size) != 0) {
- LOGI("android_main: Code for %s does not match that in NDK r7; not patching it", plaintext);
- return;
- }
-
- base = ROUND_DOWN(code, getpagesize());
- size = code + sizeof(expected_code_size) - ROUND_DOWN(code, getpagesize());
- if (mprotect(base, size, PROT_READ|PROT_WRITE|PROT_EXEC) == -1) {
- LOGE("android_main: mprotect() failed: %s", strerror(errno));
- return;
- }
-
- /* Poke a "b replacement_code" into it instead */
- *((unsigned *) code) =
- (0xEA000000 |
- ((((int) replacement_code - ((int) code + 8)) / 4) & 0x00FFFFFF));
-}
-
-static void
-patch_libgnustl_shared(void)
-{
- patch("_ZNKSt9type_infoeqERKS_",
- "std::type_info::operator==",
- expected_operator_equals_r7_code,
- sizeof(expected_operator_equals_r7_code),
- &replacement_operator_equals_arm);
-
- patch("_ZNKSt9type_info6beforeERKS_",
- "std::type_info::before()",
- expected_method_before_r7_code,
- sizeof(expected_method_before_r7_code),
- &replacement_method_before_arm);
-}
-
-void
-Java_org_libreoffice_android_Bootstrap_patch_libgnustl_shared(JNIEnv* env,
- jobject clazz)
-{
- patch_libgnustl_shared();
-}
-
-JavaVM *
-lo_get_javavm(void)
-{
- return app->activity->vm;
-}
-
-void
-android_main(struct android_app* state)
-{
- struct engine engine;
- Dl_info lo_main_info;
-
- app = state;
-
- memset(&engine, 0, sizeof(engine));
- state->userData = &engine;
- state->onAppCmd = engine_handle_cmd;
-
- if (lo_dladdr(lo_main, &lo_main_info) != 0) {
- lo_main_argv[0] = lo_main_info.dli_fname;
- }
-
- if (sleep_time != 0)
- sleep(sleep_time);
-
- patch_libgnustl_shared();
-
- lo_main(lo_main_argc, lo_main_argv);
-
- exit(0);
-}
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */