diff options
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/beam/beam_emu.c | 11 | ||||
| -rw-r--r-- | erts/emulator/beam/beam_load.c | 19 |
2 files changed, 13 insertions, 17 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 16741aa2d7..12a8022861 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -3424,7 +3424,6 @@ void process_main(void) OpCase(case_end_r): case_end_val = r(0); - I--; do_case_end: c_p->fvalue = case_end_val; @@ -5865,9 +5864,6 @@ build_stacktrace(Process* c_p, Eterm exc) { Eterm args; int depth; BeamInstr* current; -#if HALFWORD_HEAP - BeamInstr current_buff[3]; -#endif Eterm Where = NIL; Eterm *next_p = &Where; @@ -5897,14 +5893,7 @@ build_stacktrace(Process* c_p, Eterm exc) { * (e.g. spawn_link(erlang, abs, [1])). */ if (current == NULL) { -#if HALFWORD_HEAP - current = current_buff; - current[0] = (BeamInstr) c_p->initial[0]; - current[1] = (BeamInstr) c_p->initial[1]; - current[2] = (BeamInstr) c_p->initial[2]; -#else current = c_p->initial; -#endif args = am_true; /* Just in case */ } else { args = get_args_from_exc(exc); diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index 4e0d19dafa..788cb4209c 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -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). |