int symbol_init(struct kvm *kvm)
{
int ret = 0;
if (!kvm->vmlinux)
return -EINVAL;
bfd_init();
abfd = bfd_openr(kvm->vmlinux, NULL);
if (abfd == NULL) {
bfd_error_type err = bfd_get_error();
switch (err) {
case bfd_error_no_memory:
ret = -ENOMEM;
break;
case bfd_error_invalid_target:
ret = -EINVAL;
break;
default:
ret = -EFAULT;
break;
}
}
return ret;
}
int main(int argc, char **argv)
{
int len, klen, opcodes = 0;
char *kbuff;
unsigned long base;
uint8_t image[4096];
if (argc > 1) {
if (!strncmp("-o", argv[argc - 1], 2)) {
opcodes = 1;
} else {
printf("usage: bpf_jit_disasm [-o: show opcodes]\n");
exit(0);
}
}
bfd_init();
memset(image, 0, sizeof(image));
kbuff = get_klog_buff(&klen);
len = get_last_jit_image(kbuff, klen, image, sizeof(image), &base);
if (len > 0 && base > 0)
get_asm_insns(image, len, base, opcodes);
put_klog_buff(kbuff);
return 0;
}
int BinaryFile::Init(char *filename)
{
Destroy();
bfd_init();
_abfd = bfd_openr(filename, NULL);
if (_abfd == NULL) {
perror("bfd_openr");
return -1;
}
bfd_boolean ret = bfd_check_format(_abfd, bfd_object);
if (ret == false) {
perror("bfd_check_format_matches");
return -2;
}
int result = InitSymbols(_symbols, SYM_FUNC);
if (result < 0) {
fprintf(stderr, "get symbols error!\n");
return -3;
}
result = InitRelsym(_rels);
if (result < 0) {
fprintf(stderr, "get rels error!\n");
return -3;
}
return 0;
}
void objdump(const char *path)
{
bfd_init();
bfd *abfd = bfd_openr(path, NULL);
if (abfd == NULL)
errx(1, bfd_errmsg(bfd_get_error()));
if (!bfd_check_format(abfd, bfd_object)) {
bfd_close_all_done(abfd);
errx(1, "File is not a valid object file.");
}
printf("%s: file format %s\n", path, bfd_get_target(abfd));
printf("architecture: %s, flags: 0x%08x\n", bfd_printable_arch_mach(bfd_get_arch(abfd), bfd_get_mach(abfd)), abfd->flags);
printf("start address 0x%016lx", bfd_get_start_address(abfd));
printf("\n");
printf("Sections:\n");
printf("Idx Name Size VMA LMA File off Algn\n");
printf(" Flags Content\n");
object_stats stats = { FALSE, FALSE };
bfd_map_over_sections(abfd, (void (*)(bfd *, asection *, void *))print_section, &stats);
if (stats.contains_hello && stats.contains_world)
printf("\nThis file might be a hello world program!\n");
bfd_close(abfd);
}
int
main (int argc, char **argv)
{
int c;
char *target = default_target;
program_name = *argv;
xmalloc_set_program_name (program_name);
bfd_init ();
set_default_bfd_target ();
while ((c = getopt_long (argc, argv, "aip0svb?",
long_options, (int *) 0)) != EOF)
switch (c)
{
case 'a' :
sort_by_address = 1;
break;
case 'v' :
verbose = 1;
break;
case 'p' :
physical_addresses = 1;
break;
case 'i' :
physical_addresses = 0;
break;
case '0' :
a0_address_mapping = 1;
break;
case 's' :
a0_address_mapping = 0;
break;
case 'b' :
target = optarg;
break;
case '?' :
show_usage = 1;
break;
default :
show_usage = 1;
break;
}
if (show_usage)
usage (stdout, 0);
if (optind == argc)
{
char *file = strdup ("a.out");
hexify_file (file, target);
free (file);
}
else
for (; optind < argc;)
hexify_file (argv[optind++], target);
return exit_status;
}
/* use the bfd for the process exe to initialize disassembler.
FIXME: Invetigate removing this dependency.
*/
static void initdisassembler() {
char myexepath[PATH_MAX];
char *target = NULL;
if (init_done == 1) return;
/* find the victim executable */
int mypid = getpid();
sprintf(myexepath, "/proc/%d/exe", mypid);
bfd_init();
abfd = bfd_openr(myexepath,target);
if (!abfd) {
/*error no bfd to disassemble */
fprintf(stderr, "Could not load bfd for %s\n",myexepath);
return;
}
/* make sure it's an object file */
if (!bfd_check_format (abfd, bfd_object)) {
fprintf(stderr, "The bfd %s is not an object file\n",myexepath);
return;
}
init_done = 1;
}
extern bool getResourceFromFile(const char *filename, MemoryBuffer &data, const char * type, unsigned id)
{
#ifdef _WIN32
HINSTANCE dllHandle = LoadLibraryEx(filename, NULL, LOAD_LIBRARY_AS_DATAFILE|LOAD_LIBRARY_AS_IMAGE_RESOURCE);
if (dllHandle == NULL)
dllHandle = LoadLibraryEx(filename, NULL, LOAD_LIBRARY_AS_DATAFILE); // the LOAD_LIBRARY_AS_IMAGE_RESOURCE flag is not supported on all versions of Windows
if (dllHandle == NULL)
{
DBGLOG("Failed to load library %s: %d", filename, GetLastError());
return false;
}
HRSRC hrsrc = FindResource(dllHandle, MAKEINTRESOURCE(id), type);
if (!hrsrc)
return false;
size32_t len = SizeofResource(dllHandle, hrsrc);
const void *rdata = (const void *) LoadResource(dllHandle, hrsrc);
data.append(len, rdata);
FreeLibrary(dllHandle);
return true;
#else
bfd_init ();
bfd *file = bfd_openr(filename, NULL);
if (file)
{
StringBuffer sectionName;
sectionName.append(type).append("_").append(id).append(".data");
SecScanParam param(data, sectionName.str());
if (bfd_check_format (file, bfd_object))
bfd_map_over_sections (file, secscan, ¶m);
bfd_close (file);
}
return data.length() != 0;
#endif
}
extern bool getResourceFromFile(const char *filename, MemoryBuffer &data, const char * type, unsigned id)
{
#ifdef _WIN32
HINSTANCE dllHandle = LoadLibraryEx(filename, NULL, LOAD_LIBRARY_AS_DATAFILE|LOAD_LIBRARY_AS_IMAGE_RESOURCE);
if (dllHandle == NULL)
dllHandle = LoadLibraryEx(filename, NULL, LOAD_LIBRARY_AS_DATAFILE); // the LOAD_LIBRARY_AS_IMAGE_RESOURCE flag is not supported on all versions of Windows
if (dllHandle == NULL)
{
DBGLOG("Failed to load library %s: %d", filename, GetLastError());
return false;
}
HRSRC hrsrc = FindResource(dllHandle, MAKEINTRESOURCE(id), type);
if (!hrsrc)
return false;
size32_t len = SizeofResource(dllHandle, hrsrc);
const void *rdata = (const void *) LoadResource(dllHandle, hrsrc);
data.append(len, rdata);
FreeLibrary(dllHandle);
return true;
#elif defined (_USE_BINUTILS)
CriticalBlock block(bfdCs);
bfd_init ();
bfd *file = bfd_openr(filename, NULL);
if (file)
{
StringBuffer sectionName;
sectionName.append(type).append("_").append(id).append(".data");
SecScanParam param(data, sectionName.str());
if (bfd_check_format (file, bfd_object))
bfd_map_over_sections (file, secscan, ¶m);
bfd_close (file);
}
return data.length() != 0;
#else
struct stat stat_buf;
VStringBuffer sectname("%s_%u", type, id);
int fd = open(filename, O_RDONLY);
if (fd == -1 || fstat(fd, &stat_buf) == -1)
{
DBGLOG("Failed to load library %s: %d", filename, errno);
return false;
}
bool ok = false;
__uint64 size = stat_buf.st_size;
const byte *start_addr = (const byte *) mmap(0, size, PROT_READ, MAP_FILE | MAP_PRIVATE, fd, 0);
if (start_addr == MAP_FAILED)
{
DBGLOG("Failed to load library %s: %d", filename, errno);
}
else
{
ok = getResourceFromMappedFile(filename, start_addr, data, type, id);
munmap((void *)start_addr, size);
}
close(fd);
return ok;
#endif
}
int main(int argc, char *argv[])
{
bfd *abfd;
asection *text;
long storage_needed;
asymbol **symbol_table;
long number_of_symbols;
long i;
char **matching;
sec_ptr section;
char *symbol_name;
long symbol_offset, section_vma, symbol_address;
if (argc < 2)
return 0;
printf("Open %s\n", argv[1]);
bfd_init();
abfd = bfd_openr(argv[1],NULL);
if (abfd == (bfd *) 0) {
bfd_perror("bfd_openr");
return -1;
}
if (!bfd_check_format_matches(abfd, bfd_object, &matching)) {
return -1;
}
if (!(bfd_get_file_flags (abfd) & HAS_SYMS)) {
printf("ERROR flag!\n");
return -1;
}
if ((storage_needed = bfd_get_symtab_upper_bound(abfd)) < 0)
return -1;
symbol_table = (asymbol **) xmalloc(storage_needed);
number_of_symbols = bfd_canonicalize_symtab(abfd, symbol_table);
if (number_of_symbols < 0)
return -1;
fun_table = (FUN_TABLE **)malloc(sizeof(FUN_TABLE)*number_of_symbols);
bzero(fun_table, sizeof(FUN_TABLE)*number_of_symbols);
for (i = 0; i < number_of_symbols; i++) {
if (symbol_table[i]->flags & (BSF_FUNCTION|BSF_GLOBAL)) {
section = symbol_table[i]->section;
section_vma = bfd_get_section_vma(abfd, section);
symbol_name = symbol_table[i]->name;
symbol_offset = symbol_table[i]->value;
symbol_address = section_vma + symbol_offset;
if (section->flags & SEC_CODE) {
add_function_table(symbol_name,
symbol_address);
}
}
}
bfd_close(abfd);
/* 將函式對照表作排序 */
qsort(fun_table, table_count, sizeof(FUN_TABLE), compare_function);
dump_function_table();
}
/* Initialize disassembler (libopcodes/libbfd) for given file.
*
* If the the function returns data with data.bfd_file = NULL,
* then the function failed.
*/
static struct disasm_data disasm_init(const char *filename)
{
asection *section;
struct disasm_data data;
static bool initialized = false;
if (!initialized)
{
bfd_init();
initialized = true;
}
data.bfd_file = bfd_openr(filename, NULL);
if (data.bfd_file == NULL)
{
VERB1 log_bfd_error("bfd_openr", filename);
return data;
}
if (!bfd_check_format(data.bfd_file, bfd_object))
{
VERB1 log_bfd_error("bfd_check_format", filename);
goto ret_fail;
}
section = bfd_get_section_by_name(data.bfd_file, ".text");
if (section == NULL)
{
VERB1 log_bfd_error("bfd_get_section_by_name", filename);
goto ret_fail;
}
data.disassemble = disassembler(data.bfd_file);
if (data.disassemble == NULL)
{
VERB1 log("Unable to find disassembler");
goto ret_fail;
}
init_disassemble_info(&data.info, NULL, buffer_printf);
data.info.arch = bfd_get_arch(data.bfd_file);
data.info.mach = bfd_get_mach(data.bfd_file);
data.info.buffer_vma = section->vma;
data.info.buffer_length = section->size;
data.info.section = section;
/*TODO: memory error func*/
bfd_malloc_and_get_section(data.bfd_file, section, &data.info.buffer);
disassemble_init_for_target(&data.info);
return data;
ret_fail:
bfd_close(data.bfd_file);
data.bfd_file = NULL;
return data;
}
void setup (void) {
bfd_init();
test_target = bfd_fopen((const char*) "/usr/bin/uname", "default", "r", -1);
ck_assert_ptr_ne(test_target, NULL);
ck_assert_str_eq(test_target->filename, "/usr/bin/uname");
ck_assert_int_ne(test_target->section_count, 0);
ck_assert_int_ne(test_target->arch_info, 0);
ck_assert_str_eq(test_target->arch_info->printable_name, "foo");
}
extern void DEBUG_LoadSymbols( const char *name )
{
bfd* abfd;
char **matching;
bfd_init();
abfd = bfd_openr(name, "default");
if (abfd == NULL) {
barf("can't open executable %s to get symbol table", name);
}
if (!bfd_check_format_matches (abfd, bfd_object, &matching)) {
barf("mismatch");
}
{
long storage_needed;
asymbol **symbol_table;
long number_of_symbols;
long num_real_syms = 0;
long i;
storage_needed = bfd_get_symtab_upper_bound (abfd);
if (storage_needed < 0) {
barf("can't read symbol table");
}
symbol_table = (asymbol **) stgMallocBytes(storage_needed,"DEBUG_LoadSymbols");
number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table);
if (number_of_symbols < 0) {
barf("can't canonicalise symbol table");
}
if (add_to_fname_table == NULL)
add_to_fname_table = allocHashTable();
for( i = 0; i != number_of_symbols; ++i ) {
symbol_info info;
bfd_get_symbol_info(abfd,symbol_table[i],&info);
if (isReal(info.type, info.name)) {
insertHashTable(add_to_fname_table,
info.value, (void*)info.name);
num_real_syms += 1;
}
}
IF_DEBUG(interpreter,
debugBelch("Loaded %ld symbols. Of which %ld are real symbols\n",
number_of_symbols, num_real_syms)
);
stgFree(symbol_table);
}
}
stacktrace::stacktrace ()
: syms (0)
, dbfd ()
, pc (0)
, filename ("file")
, funcname ("func")
, line (0)
, found (false)
{
bfd_init ();
xassert (pthread_mutex_init (&mtx, NULL) == 0);
}
static void resolve(unw_word_t addr, const char** file, unsigned int* line, const char** func)
{
static bool can_give_lineinfo = true;
if (!can_give_lineinfo)
{
return;
}
if (!current_executable)
{
static char exec_name[PATH_MAX];
int len = readlink("/proc/self/exe", exec_name, PATH_MAX);
if (len < 0)
{
std::cerr << "Unable to find the current executable, so backtrace won't display line information." << std::endl;
can_give_lineinfo = false;
return;
}
bfd_init();
current_executable = bfd_openr(exec_name, 0);
if (!current_executable)
{
std::cerr << "Unable to initialize libbfd, so backtrace won't display line information." << std::endl;
can_give_lineinfo = false;
return;
}
/* this is a required check. no idea why. */
bfd_check_format(current_executable, bfd_object);
unsigned storage_needed = bfd_get_symtab_upper_bound(current_executable);
syms = (asymbol**) malloc(storage_needed);
unsigned cSymbols = bfd_canonicalize_symtab(current_executable, syms);
/* Get the text section so we can 'un-relocate' symbols. */
text = bfd_get_section_by_name(current_executable, ".text");
}
unsigned offset = addr - text->vma;
if (offset > 0)
{
/* Address is in the current executable! Great! */
int success = bfd_find_nearest_line(current_executable, text, syms, offset, file, func, line);
if (*file && success)
{
return;
}
}
}
int main(int argc, const char* argv[])
{
const char* filename = argv[1];
const char *target = "elf64-x86-64";
bfd *abfd;
bfd_init();
abfd = bfd_openr(filename, target);
if (abfd == NULL) { fprintf(stderr, "getsyms: '%s' : No such file", filename); return 0; }
bfd_check_format(abfd, bfd_object);
dump_symbols(abfd);
return 0;
}
static LONG WINAPI exception_filter (LPEXCEPTION_POINTERS info)
{
struct output_buffer ob;
SYSTEMTIME timeInfo;
OSVERSIONINFOEX osInfo;
FILE* crash;
const char* dumpFile = "crashdump.txt";
int ret;
GetSystemTime(&timeInfo);
OBJZERO(osInfo);
osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
if (!GetVersionEx((OSVERSIONINFO*)&osInfo)) {
osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx((OSVERSIONINFO*)&osInfo);
}
output_init(&ob, g_output, BUFFER_MAX);
if (!SymInitialize(GetCurrentProcess(), 0, TRUE)) {
output_print(&ob, "Failed to init symbol context\n");
} else {
struct bfd_set *set = (struct bfd_set *)calloc(1, sizeof(*set));
bfd_init();
_backtrace(&ob, set, 128, info->ContextRecord);
release_set(set);
SymCleanup(GetCurrentProcess());
}
crash = fopen(dumpFile, "w");
if (crash != nullptr) {
fprintf(crash, "======start======\n");
fprintf(crash, "Date: %.4d-%.2d-%.2d\n",
timeInfo.wYear, timeInfo.wMonth, timeInfo.wDay);
fprintf(crash, "Windows version %lu.%lu (Build %lu) %s\n",
osInfo.dwMajorVersion, osInfo.dwMinorVersion, osInfo.dwBuildNumber, osInfo.szCSDVersion);
fprintf(crash, BUILDSTRING ", cpu: " CPUSTRING ", version: " UFO_VERSION "\n\n");
fprintf(crash, "%s", g_output);
fprintf(crash, "======end========\n");
fclose(crash);
}
fputs(g_output, stderr);
ret = MessageBox(nullptr, "Would you like to upload this crash dump and your ufoconsole.log? This will help the developers to fix the problem.", GAME_TITLE_LONG" Fatal Error", MB_ICONQUESTION | MB_YESNO | MB_DEFBUTTON2);
if (ret == IDYES)
Com_UploadCrashDump(dumpFile);
return 0;
}
int main (int argc, char** argv) {
if (argc < 2)
exit(1);
const char* fn=argv[1];
fprintf(stderr,"file is %s\n",fn);
bfd_init();
bfd* bfd = bfd_openr(fn, NULL);
if (bfd==NULL)
exit(1);
if (!bfd_check_format(bfd,bfd_object))
exit(1);
asection* s = bfd_get_section_by_name(bfd,".text");
if (s==NULL)
exit(1);
unsigned char* blob;
bfd_size_type sz = s->size;
fprintf(stderr,".text is %zu bytes\n",sz);
if(!bfd_malloc_and_get_section(bfd,s,&blob))
exit(1);
DISASM disObj;
DISASM* dis = &disObj;
memset(dis,0,sizeof(DISASM));
unsigned int len;
unsigned char* blobb = blob;
unsigned int invalid = 0;
unsigned int n = 0;
dis->Archi = 64;
do {
dis->EIP = (UIntPtr)blobb;
dis->SecurityBlock = sz;
len = Disasm(dis);
if (len==OUT_OF_BLOCK) {
fprintf(stderr,"out-of-block-error");
exit(1);
} else if (len==UNKNOWN_OPCODE) {
invalid++;
len = 1;
} //else {
//puts(dis->CompleteInstr);
//}
blobb += len;
sz-=len;
n++;
} while(len > 0 && sz > 0);
fprintf(stderr,"decoded %u opcode sequences (%u invalid/unknown)\n", n, invalid);
return (0);
}
int main(int argc, char* argv[]) {
bfd *obj, *objout;
bfd_init();
unsigned int h;
if (argc != 2) {
printf("not enough arguments!\n");
}
else {
// printf("%s\n", argv[1]);
obj = bfd_openr(argv[1], "elf64-x86-64");
if (!obj) {
bfd_perror("open failure\n");
}
if (!bfd_check_format(obj, bfd_object)) {
printf("format error!\n");
}
else {
// findSections passes findSectionData to map_over_sections
findSections(obj, findSectionData);
}
}
return 0;
}
void arch_bfdDisasm(pid_t pid, uint8_t * mem, size_t size, char *instr)
{
while (pthread_mutex_lock(&arch_bfd_mutex)) ;
bfd_init();
char fname[PATH_MAX];
snprintf(fname, sizeof(fname), "/proc/%d/exe", pid);
bfd *bfdh = bfd_openr(fname, NULL);
if (bfdh == NULL) {
LOGMSG(l_WARN, "bfd_openr('/proc/%d/exe') failed", pid);
goto out;
}
if (!bfd_check_format(bfdh, bfd_object)) {
LOGMSG(l_WARN, "bfd_check_format() failed");
goto out;
}
disassembler_ftype disassemble = disassembler(bfdh);
if (disassemble == NULL) {
LOGMSG(l_WARN, "disassembler() failed");
goto out;
}
struct disassemble_info info;
init_disassemble_info(&info, instr, arch_bfdFPrintF);
info.arch = bfd_get_arch(bfdh);
info.mach = bfd_get_mach(bfdh);
info.buffer = mem;
info.buffer_length = size;
info.section = NULL;
info.endian = bfd_little_endian(bfdh) ? BFD_ENDIAN_LITTLE : BFD_ENDIAN_BIG;
disassemble_init_for_target(&info);
strcpy(instr, "");
if (disassemble(0, &info) <= 0) {
snprintf(instr, _HF_INSTR_SZ, "[DIS-ASM_FAILURE]");
}
out:
bfdh ? bfd_close_all_done(bfdh) : 0;
while (pthread_mutex_unlock(&arch_bfd_mutex)) ;
return;
}
/**
* @brief Sets up the SignalHandler for Linux.
*/
static void debug_sigInit( void )
{
#if HAS_LINUX && defined(DEBUGGING)
char **matching;
struct sigaction sa, so;
bfd_init();
/* Read the executable */
abfd = bfd_openr("/proc/self/exe", NULL);
if (abfd != NULL) {
bfd_check_format_matches(abfd, bfd_object, &matching);
/* Read symbols */
if (bfd_get_file_flags(abfd) & HAS_SYMS) {
long symcount;
unsigned int size;
/* static */
symcount = bfd_read_minisymbols (abfd, FALSE, (void **)&syms, &size);
if (symcount == 0) /* dynamic */
symcount = bfd_read_minisymbols (abfd, TRUE, (void **)&syms, &size);
assert(symcount >= 0);
}
}
/* Set up handler. */
sa.sa_handler = NULL;
sa.sa_sigaction = debug_sigHandler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO;
/* Attach signals. */
sigaction(SIGSEGV, &sa, &so);
if (so.sa_handler == SIG_IGN)
DEBUG("Unable to set up SIGSEGV signal handler.");
sigaction(SIGFPE, &sa, &so);
if (so.sa_handler == SIG_IGN)
DEBUG("Unable to set up SIGFPE signal handler.");
sigaction(SIGABRT, &sa, &so);
if (so.sa_handler == SIG_IGN)
DEBUG("Unable to set up SIGABRT signal handler.");
#else /* HAS_LINUX && defined(DEBUGGING) */
(void) executable;
#endif /* HAS_LINUX && defined(DEBUGGING) */
}
static int
init_bfd_ctx(struct bfd_ctx *bc, struct output_buffer *ob)
{
bc->handle = NULL;
bc->symbol = NULL;
char procname[MAX_PATH];
GetModuleFileNameA(NULL, procname, sizeof procname);
bfd_init();
bfd *b = bfd_openr(procname, 0);
if (!b) {
output_print(ob,"Failed to init bfd\n");
return 1;
}
int r1 = bfd_check_format(b, bfd_object);
int r2 = bfd_check_format_matches(b, bfd_object, NULL);
int r3 = bfd_get_file_flags(b) & HAS_SYMS;
if (!(r1 && r2 && r3)) {
bfd_close(b);
output_print(ob,"Failed to init bfd\n");
return 1;
}
void *symbol_table;
unsigned dummy = 0;
if (bfd_read_minisymbols(b, FALSE, &symbol_table, &dummy) == 0) {
if (bfd_read_minisymbols(b, TRUE, &symbol_table, &dummy) < 0) {
free(symbol_table);
bfd_close(b);
output_print(ob,"Failed to init bfd\n");
return 1;
}
}
bc->handle = b;
bc->symbol = symbol_table;
return 0;
}
void ExchndlSetup(const char *packageVersion)
{
# if defined(WZ_CC_MINGW)
wchar_t miniDumpPath[PATH_MAX] = {'\0'};
#ifdef HAVE_BFD
bfd_init();
#endif /* HAVE_BFD */
// Install the unhandled exception filter function
prevExceptionFilter = SetUnhandledExceptionFilter(TopLevelExceptionFilter);
// Retrieve the current version
formattedVersionString = strdup(packageVersion);
// Because of UAC on vista / win7 we use this to write our dumps to (unless we override it via OverrideRPTDirectory())
// NOTE: CSIDL_PERSONAL = C:\Users\user name\Documents
if ( SUCCEEDED( SHGetFolderPathW( NULL, CSIDL_PERSONAL, NULL, SHGFP_TYPE_CURRENT, miniDumpPath ) ))
{
PathAppendW( miniDumpPath, WSTRING(WZ_WRITEDIR));
PathAppendW( miniDumpPath, L"\\logs" );
if( !PathFileExistsW( miniDumpPath ) )
{
if( ERROR_SUCCESS != SHCreateDirectoryExW( NULL, miniDumpPath, NULL ) )
{
wcscpy(miniDumpPath, L"c:\\temp");
}
}
}
else
{ // should never fail, but if it does, we fall back to this
wcscpy(miniDumpPath, L"c:\\temp");
}
wcscat(szLogFileName, L"Warzone2100.RPT");
wcscat(miniDumpPath, L"\\");
wcscat(miniDumpPath,szLogFileName);
wcscpy(szLogFileName, miniDumpPath);
atexit(ExchndlShutdown);
#endif
}
void arch_bfdResolveSyms(pid_t pid, funcs_t * funcs, size_t num)
{
/* Guess what? libbfd is not multi-threading safe */
while (pthread_mutex_lock(&arch_bfd_mutex)) ;
bfd_init();
bfd_t bfdParams = {
.bfdh = NULL,
.section = NULL,
.syms = NULL,
};
if (arch_bfdInit(pid, &bfdParams) == false) {
goto out;
}
const char *func;
const char *file;
unsigned int line;
for (unsigned int i = 0; i < num; i++) {
snprintf(funcs[i].func, sizeof(funcs->func), "[UNKNOWN]");
if (funcs[i].pc == NULL) {
continue;
}
long offset = (long)funcs[i].pc - bfdParams.section->vma;
if ((offset < 0 || (unsigned long)offset > bfdParams.section->size)) {
continue;
}
if (bfd_find_nearest_line
(bfdParams.bfdh, bfdParams.section, bfdParams.syms, offset, &file, &func, &line)) {
snprintf(funcs[i].func, sizeof(funcs->func), "%s", func);
funcs[i].line = line;
}
}
out:
arch_bfdDestroy(&bfdParams);
while (pthread_mutex_unlock(&arch_bfd_mutex)) ;
return;
}
/// Initializes the loader of executable files by creating the corresponding bfd
/// image of the executable file specified as parameter.
trap::ExecLoader::ExecLoader(std::string filename, bool plain_file) : plain_file(plain_file) {
this->program_data = NULL;
this->exec_image = NULL;
this->program_dim = 0;
this->data_start = 0;
char** matching = NULL;
if (plain_file) {
/// Read the input file, putting all the bytes of its content in the
/// program_data array.
boost::filesystem::path file_path = boost::filesystem::system_complete(boost::filesystem::path(filename));
if (!boost::filesystem::exists(file_path)) {
THROW_EXCEPTION("Path " << filename << " specified in the executable loader does not exist.");
}
std::ifstream plain_exec_file ile(filename.c_str(), std::ifstream::in | std::ifstream::binary);
if (!plain_exec_file.good())
THROW_EXCEPTION("Cannot open file " << filename << '.');
// Determine the size of the program being loaded.
plain_exec_file.seekg (0, std::ios::end);
this->program_dim = plain_exec_file.tellg();
plain_exec_file.seekg (0, std::ios::beg);
this->program_data = new unsigned char[this->program_dim];
// Read the whole file
plain_exec_file.read((char*)this->program_data, this->program_dim);
this->data_start = 0;
plain_exec_file.close();
} else {
bfd_init();
this->exec_image = bfd_openr(filename.c_str(), "default");
if (this->exec_image == NULL) {
THROW_ERROR("Cannot open input file " << filename << ": " << bfd_errmsg(bfd_get_error()) << '.');
}
if (bfd_check_format (this->exec_image, bfd_archive)) {
THROW_ERROR("Invalid input file " << filename << ", expected executable file, not archive.");
}
if (!bfd_check_format_matches (this->exec_image, bfd_object, &matching)) {
THROW_ERROR("Invalid input file " << filename << ", the input file is not an object file or the target is ambiguous: " << this->get_matching_formats(matching) << '.');
}
this->load_program_data();
}
} // ExecLoader::ExecLoader()
// --------------------------------------------------------------------------
bool ctkBinaryFileDescriptor::load()
{
Q_D(ctkBinaryFileDescriptor);
bfd_init();
bfd * abfd = bfd_openr(d->FileName.toLatin1(), NULL);
if (!abfd)
{
return false;
}
/* make sure it's an object file */
if (!bfd_check_format (abfd, bfd_object))
{
bfd_close(abfd);
return false;
}
d->BFD = abfd;
return true;
}
/* initialize bincode */
bincode_t *initialize_bincode(const char *file)
{
bfd *abfd;
bincode_t *bin;
//char *target = "x86_64-unknown-linux-gnu";
char *target = "i686-pc-linux-gnu";
bfd_init();
if (!bfd_set_default_target(target)) {
bs_dbgmsg(" (!) bfd_set_default_target()\n");
return NULL;
}
if ((abfd = bfd_openr(file, target)) == NULL) {
bs_dbgmsg(" (!) bfd_openr(): %s\n", file);
return NULL;
}
if (!bfd_check_format(abfd, bfd_object)) {
bs_dbgmsg(" (!) bfd_check_format()\n");
bfd_close(abfd);
return NULL;
}
if((bin = malloc(sizeof(bincode_t))) == NULL) {
bs_errmsg(" (!) malloc(): bin\n");
exit(EXIT_FAILURE);
}
bin->filename = strdup(abfd->filename);
bin->abfd = abfd;
bin->filesize = bfd_get_size(abfd);
bin->start_addr = bfd_get_start_address(abfd);
init_disasm_info(bin->abfd, &bin->disasm_info);
bin->disasm_info.application_data = bin;
initialize_section(bin);
return bin;
}
static int is_bfd_symbols_available(void) {
char name_buf[PATH_MAX];
int n = readlink("/proc/self/exe", name_buf, sizeof(name_buf) - 1);
if (n < 1)
return 0;
bfd *abfd;
char** matching;
bfd_init();
name_buf[n] = 0;
abfd = bfd_openr(name_buf, NULL);
if (! abfd)
return 0;
n = 0;
if ((bfd_get_file_flags(abfd) & HAS_SYMS) != 0
&& bfd_check_format_matches(abfd, bfd_object, &matching))
n = bfd_get_symtab_upper_bound(abfd) > 0;
bfd_close(abfd);
return n;
}
// Define BFD-related global variables.
static int define_bfd_vars(void)
{
bfd * bfd;
bfd_boolean r;
int len;
#define MAX_PATHLENGTH 2048
char mypath[MAX_PATHLENGTH];
len = readlink("/proc/self/exe", mypath, sizeof(mypath));
if (len < 0) {
fprintf(stderr, "libopagent: readlink /proc/self/exe failed\n");
return -1;
}
if (len >= MAX_PATHLENGTH) {
fprintf(stderr, "libopagent: readlink /proc/self/exe returned"
" path length longer than %d.\n", MAX_PATHLENGTH);
return -1;
}
mypath[len] = '\0';
bfd_init();
bfd = bfd_openr(mypath, NULL);
if (bfd == NULL) {
bfd_perror("bfd_openr error. Cannot get required BFD info");
return -1;
}
r = bfd_check_format(bfd, bfd_object);
if (!r) {
bfd_perror("bfd_get_arch error. Cannot get required BFD info");
return -1;
}
_bfd_target_name = bfd->xvec->name;
_bfd_arch = bfd_get_arch(bfd);
_bfd_mach = bfd_get_mach(bfd);
return 0;
}
bfd *
initialize_bfd(const char *filename)
{
bfd * abfd;
char **matching;
char *target = "i686-pc-linux-gnu";
bfd_init();
if(!bfd_set_default_target(target))
fatal("program::initialize", "couldn't set default bfd target");
abfd = bfd_openr(filename, target);
if(abfd == NULL)
fatal("initialize_bfd", "cannot open %s", filename);
if (bfd_check_format (abfd, bfd_archive))
fatal("initalize_bfd", "archive files not supported\n");
if(!bfd_check_format_matches(abfd, bfd_object, &matching))
fatal("initialize_bfd", "bfd_check_format_matches failed");
return abfd;
}
int main(int argc, char **argv)
{
if (argc <= 1)
{
fprintf(stderr, "Usage: %s <filename> <var1> <var2>\n\n", argv[0]);
fprintf(stderr, "Where var1/var2 are variables in the program\n");
fprintf(stderr, "E.g.: %s ./%s main abfd\n", argv[0], argv[0]);
exit(ERROR);
}
bfd_init();
bfd_set_error_handler((bfd_error_handler_type)bfderror);
abfd = bfd_openr(argv[1], NULL);
if (abfd == NULL)
{
bfderror("[bfd_openr] error with opening %s", argv[1]);
exit(ERROR);
}
setup(), showStats();
printf("\nHit enter to continue..."), (void)getchar();
dumpsects(bfd_get_section_by_name(abfd, ".text"));
dumpsects(bfd_get_section_by_name(abfd, ".plt"));
dumpsects(bfd_get_section_by_name(abfd, ".data"));
dumpsects(bfd_get_section_by_name(abfd, ".bss"));
getSyms(argv[2], argv[3]);
bfd_close(abfd);
return 0;
}