diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/doc/src/erl.xml | 9 | ||||
| -rw-r--r-- | erts/emulator/beam/beam_emu.c | 5 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_init.c | 14 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_vm.h | 2 | ||||
| -rw-r--r-- | erts/etc/common/erlexec.c | 1 |
5 files changed, 29 insertions, 2 deletions
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml index 05a9895687..133f160dc9 100644 --- a/erts/doc/src/erl.xml +++ b/erts/doc/src/erl.xml @@ -1552,6 +1552,15 @@ parameter determines. The lingering prevents repeated deletions and insertions in the tables from occurring.</p> </item> + <tag><marker id="+ztma"/><c>+ztma true | false</c></tag> + <item> + <p>Enables or disables support for tuple module apply in + the emulator. This is a transitional flag for running code + that uses parameterized modules and was compiled under OTP 20 + or earlier. For future compatibility, the modules will need + to be recompiled with the +tuple_calls compiler option. + Defaults to false.</p> + </item> </taglist> </item> </taglist> diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index aa6e7d3de2..4351dda5a7 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -379,6 +379,7 @@ do { \ # define NOINLINE #endif +int tuple_module_apply; /* * The following functions are called directly by process_main(). @@ -2240,7 +2241,7 @@ apply(Process* p, Eterm* reg, BeamInstr *I, Uint stack_offset) if (is_not_atom(module)) { Eterm* tp; - if (is_not_tuple(module)) goto error; + if (!tuple_module_apply || is_not_tuple(module)) goto error; tp = tuple_val(module); if (arityval(tp[0]) < 1) goto error; this = module; @@ -2346,7 +2347,7 @@ fixed_apply(Process* p, Eterm* reg, Uint arity, */ if (is_not_atom(module)) { Eterm* tp; - if (is_not_tuple(module)) goto error; + if (!tuple_module_apply || is_not_tuple(module)) goto error; tp = tuple_val(module); if (arityval(tp[0]) < 1) goto error; module = tp[1]; diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c index 41bec17dfa..da8b998d61 100644 --- a/erts/emulator/beam/erl_init.c +++ b/erts/emulator/beam/erl_init.c @@ -729,6 +729,9 @@ void erts_usage(void) erts_fprintf(stderr, "-zebwt val set ets busy wait threshold, valid values are:\n"); erts_fprintf(stderr, " none|very_short|short|medium|long|very_long|extremely_long\n"); #endif + erts_fprintf(stderr, "-ztma bool enable/disable tuple module apply support in emulator\n"); + erts_fprintf(stderr, " (transitional flag for parameterized modules; recompile\n"); + erts_fprintf(stderr, " with +tuple_calls for compatibility with future versions)\n"); erts_fprintf(stderr, "\n"); erts_fprintf(stderr, "Note that if the emulator is started with erlexec (typically\n"); erts_fprintf(stderr, "from the erl script), these flags should be specified with +.\n"); @@ -2212,6 +2215,17 @@ erl_start(int argc, char **argv) erts_usage(); } } + else if (has_prefix("tma", sub_param)) { + arg = get_arg(sub_param+3, argv[i+1], &i); + if (sys_strcmp(arg,"true") == 0) { + tuple_module_apply = 1; + } else if (sys_strcmp(arg,"false") == 0) { + tuple_module_apply = 0; + } else { + erts_fprintf(stderr, "bad tuple module apply %s\n", arg); + erts_usage(); + } + } else { erts_fprintf(stderr, "bad -z option %s\n", argv[i]); erts_usage(); diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h index 4089fac48e..d37c2940c4 100644 --- a/erts/emulator/beam/erl_vm.h +++ b/erts/emulator/beam/erl_vm.h @@ -167,6 +167,8 @@ extern const int num_instructions; /* Number of instruction in opc[]. */ extern Uint erts_instr_count[]; +extern int tuple_module_apply; + /* some constants for various table sizes etc */ #define ATOM_TEXT_SIZE 32768 /* Increment for allocating atom text space */ diff --git a/erts/etc/common/erlexec.c b/erts/etc/common/erlexec.c index 0cb01fd4ef..23bbb86333 100644 --- a/erts/etc/common/erlexec.c +++ b/erts/etc/common/erlexec.c @@ -174,6 +174,7 @@ static char *plusz_val_switches[] = { "dbbl", "dntgc", "ebwt", + "tma", NULL }; |