1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "components/nacl/loader/nonsfi/irt_interfaces.h" 6 7 #include <cstring> 8 9 namespace nacl { 10 namespace nonsfi { 11 12 namespace { 13 14 // This table keeps a pair of IRT entry (such as nacl_irt_basic, nacl_irt_fdio 15 // etc.) and its registered name with its version (such as NACL_IRT_BASIC_v0_1, 16 // NACL_IRT_DEV_FDIO_v0_1, etc.). 17 struct NaClInterfaceTable { 18 const char* name; 19 const void* table; 20 size_t size; 21 }; 22 23 #define NACL_INTERFACE_TABLE(name, value) { name, &value, sizeof(value) } 24 const NaClInterfaceTable kIrtInterfaces[] = { 25 NACL_INTERFACE_TABLE(NACL_IRT_BASIC_v0_1, kIrtBasic), 26 NACL_INTERFACE_TABLE(NACL_IRT_FDIO_v0_1, kIrtFdIO), 27 NACL_INTERFACE_TABLE(NACL_IRT_MEMORY_v0_3, kIrtMemory), 28 NACL_INTERFACE_TABLE(NACL_IRT_THREAD_v0_1, kIrtThread), 29 NACL_INTERFACE_TABLE(NACL_IRT_FUTEX_v0_1, kIrtFutex), 30 NACL_INTERFACE_TABLE(NACL_IRT_TLS_v0_1, kIrtTls), 31 NACL_INTERFACE_TABLE(NACL_IRT_CLOCK_v0_1, kIrtClock), 32 NACL_INTERFACE_TABLE(NACL_IRT_PPAPIHOOK_v0_1, kIrtPpapiHook), 33 NACL_INTERFACE_TABLE(NACL_IRT_RESOURCE_OPEN_v0_1, kIrtResourceOpen), 34 NACL_INTERFACE_TABLE(NACL_IRT_RANDOM_v0_1, kIrtRandom), 35 NACL_INTERFACE_TABLE(NACL_IRT_EXCEPTION_HANDLING_v0_1, kIrtExceptionHandling), 36 #if defined(__arm__) 37 NACL_INTERFACE_TABLE(NACL_IRT_ICACHE_v0_1, kIrtIcache), 38 #endif 39 }; 40 #undef NACL_INTERFACE_TABLE 41 42 } // namespace 43 44 size_t NaClIrtInterface(const char* interface_ident, 45 void* table, size_t tablesize) { 46 for (size_t i = 0; i < arraysize(kIrtInterfaces); ++i) { 47 if (std::strcmp(interface_ident, kIrtInterfaces[i].name) == 0) { 48 const size_t size = kIrtInterfaces[i].size; 49 if (size <= tablesize) { 50 std::memcpy(table, kIrtInterfaces[i].table, size); 51 return size; 52 } 53 break; 54 } 55 } 56 return 0; 57 } 58 59 } // namespace nonsfi 60 } // namespace nacl 61
