diff options
Diffstat (limited to 'erts/emulator/beam/beam_load.c')
| -rw-r--r-- | erts/emulator/beam/beam_load.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index e6448931eb..788cb4209c 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2010. All Rights Reserved. + * Copyright Ericsson AB 1996-2011. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -3770,25 +3770,32 @@ freeze_code(LoaderState* stp) CHKBLK(ERTS_ALC_T_CODE,code); if (compile_size) { byte* compile_info = str_table + strtab_size + attr_size; - CHKBLK(ERTS_ALC_T_CODE,code); + CHKBLK(ERTS_ALC_T_CODE,code); sys_memcpy(compile_info, stp->chunks[COMPILE_CHUNK].start, stp->chunks[COMPILE_CHUNK].size); - CHKBLK(ERTS_ALC_T_CODE,code); + + CHKBLK(ERTS_ALC_T_CODE,code); code[MI_COMPILE_PTR] = (BeamInstr) compile_info; - CHKBLK(ERTS_ALC_T_CODE,code); + CHKBLK(ERTS_ALC_T_CODE,code); code[MI_COMPILE_SIZE] = (BeamInstr) stp->chunks[COMPILE_CHUNK].size; - CHKBLK(ERTS_ALC_T_CODE,code); + CHKBLK(ERTS_ALC_T_CODE,code); decoded_size = erts_decode_ext_size(compile_info, compile_size, 0); - CHKBLK(ERTS_ALC_T_CODE,code); + CHKBLK(ERTS_ALC_T_CODE,code); if (decoded_size < 0) { LoadError0(stp, "bad external term representation of compilation information"); } - CHKBLK(ERTS_ALC_T_CODE,code); + CHKBLK(ERTS_ALC_T_CODE,code); code[MI_COMPILE_SIZE_ON_HEAP] = decoded_size; } CHKBLK(ERTS_ALC_T_CODE,code); /* + * Make sure that we have not overflowed the allocated code space. + */ + ASSERT(str_table + strtab_size + attr_size + compile_size == + ((byte *) code) + size); + + /* * Go through all i_new_bs_put_strings instructions, restore the pointer to * the instruction and convert string offsets to pointers (to the * FIRST character). @@ -5476,6 +5483,9 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info) if (state.lambdas != state.def_lambdas) { erts_free(ERTS_ALC_T_LOADER_TMP, (void *) state.lambdas); } + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) state.labels); + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) state.atom); + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) state.export); if (bin != NULL) { driver_free_binary(bin); } @@ -5487,9 +5497,18 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info) if (code != NULL) { erts_free(ERTS_ALC_T_CODE, code); } + if (state.labels != NULL) { + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) state.labels); + } if (state.lambdas != state.def_lambdas) { erts_free(ERTS_ALC_T_LOADER_TMP, (void *) state.lambdas); } + if (state.atom != NULL) { + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) state.atom); + } + if (state.export != NULL) { + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) state.export); + } if (bin != NULL) { driver_free_binary(bin); } |