int find_symbol_by_name(Context * ctx, int frame, ContextAddress ip, char * name, Symbol ** sym) {
int found = 0;
*sym = alloc_symbol();
(*sym)->ctx = ctx;
if (frame == STACK_TOP_FRAME && (frame = get_top_frame(ctx)) < 0) return -1;
if (find_pe_symbol_by_name(ctx, frame, ip, name, *sym) >= 0) found = 1;
else if (get_error_code(errno) != ERR_SYM_NOT_FOUND) return -1;
#if ENABLE_RCBP_TEST
if (!found) {
int sym_class = 0;
void * address = NULL;
if (find_test_symbol(ctx, name, &address, &sym_class) >= 0) found = 1;
else if (get_error_code(errno) != ERR_SYM_NOT_FOUND) return -1;
if (found) {
(*sym)->ctx = ctx->mem;
(*sym)->sym_class = sym_class;
(*sym)->address = (ContextAddress)address;
}
}
#endif
if (!found) {
if (find_basic_type_symbol(ctx, name, *sym) >= 0) found = 1;
else if (get_error_code(errno) != ERR_SYM_NOT_FOUND) return -1;
}
if (!found) {
errno = ERR_SYM_NOT_FOUND;
return -1;
}
assert(frame >= 0 || (*sym)->ctx == ctx->mem);
assert((*sym)->ctx == ((*sym)->frame ? ctx : ctx->mem));
assert((*sym)->frame == ((*sym)->ctx == (*sym)->ctx->mem ? 0u : frame - STACK_NO_FRAME));
return 0;
}
void send_event_register_changed(const char * id) {
unsigned i;
Context * ctx = NULL;
int frame = STACK_NO_FRAME;
RegisterDefinition * def = NULL;
OutputStream * out = &broadcast_group->out;
id2register(id, &ctx, &frame, &def);
if (ctx == NULL) return;
for (i = 0; i < listener_cnt; i++) {
Listener * l = listeners + i;
if (l->func->register_changed == NULL) continue;
l->func->register_changed(ctx, frame, def, l->args);
}
if (frame >= 0 && frame == get_top_frame(ctx)) {
id = register2id(ctx, STACK_TOP_FRAME, def);
}
write_stringz(out, "E");
write_stringz(out, REGISTERS);
write_stringz(out, "registerChanged");
json_write_string(out, id);
write_stream(out, 0);
write_stream(out, MARKER_EOM);
}
int find_symbol_by_addr(Context * ctx, int frame, ContextAddress addr, Symbol ** sym) {
*sym = alloc_symbol();
(*sym)->ctx = ctx;
if (frame == STACK_TOP_FRAME && (frame = get_top_frame(ctx)) < 0) return -1;
if (find_pe_symbol_by_addr(ctx, frame, addr, *sym) < 0) return -1;
assert(frame >= 0 || (*sym)->ctx == ctx->mem);
assert((*sym)->ctx == ((*sym)->frame ? ctx : ctx->mem));
assert((*sym)->frame == ((*sym)->ctx == (*sym)->ctx->mem ? 0u : frame - STACK_NO_FRAME));
return 0;
}
int enumerate_symbols(Context * ctx, int frame, EnumerateSymbolsCallBack * call_back, void * args) {
ULONG64 buffer[(sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(TCHAR) + sizeof(ULONG64) - 1) / sizeof(ULONG64)];
SYMBOL_INFO * symbol = (SYMBOL_INFO *)buffer;
IMAGEHLP_STACK_FRAME stack_frame;
EnumerateSymbolsContext enum_context;
HANDLE process = get_context_handle(ctx->parent == NULL ? ctx : ctx->parent);
symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
symbol->MaxNameLen = MAX_SYM_NAME;
if (frame == STACK_TOP_FRAME) frame = get_top_frame(ctx);
if (frame == STACK_TOP_FRAME) return -1;
if (get_stack_frame(ctx, frame, 0, &stack_frame) < 0) return -1;
if (!SymSetContext(process, &stack_frame, NULL)) {
DWORD err = GetLastError();
if (err == ERROR_SUCCESS) {
/* Don't know why Windows does that */
}
else {
set_win32_errno(err);
return -1;
}
}
enum_context.ctx = ctx;
enum_context.frame = frame;
enum_context.call_back = call_back;
enum_context.args = args;
if (!SymEnumSymbols(process, 0, NULL, enumerate_symbols_proc, &enum_context)) {
set_win32_errno(GetLastError());
return -1;
}
return 0;
}
