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| author | Björn Gustavsson <[email protected]> | 2010-12-16 10:32:28 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2011-01-17 15:23:22 +0100 |
| commit | 6ce5ab74806d044070768175f48605bab7fa079d (patch) | |
| tree | 5be617825d4e878c6d5dd4b48dd7b1d2feada2b0 /erts/emulator | |
| parent | 1d82ce2e4466980e5c360b54722952a30bc3ae50 (diff) | |
| download | otp-6ce5ab74806d044070768175f48605bab7fa079d.tar.gz otp-6ce5ab74806d044070768175f48605bab7fa079d.tar.bz2 otp-6ce5ab74806d044070768175f48605bab7fa079d.zip | |
Add erts_debug:instructions/0 for listing all specific instructions
erts_debug:instructions/0 is useful for finding which specific
instructions that are not used at all.
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/beam/beam_debug.c | 19 | ||||
| -rw-r--r-- | erts/emulator/beam/bif.tab | 1 | ||||
| -rw-r--r-- | erts/emulator/test/erts_debug_SUITE.erl | 9 |
3 files changed, 27 insertions, 2 deletions
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c index b0bf14b94f..6f2a21b50a 100644 --- a/erts/emulator/beam/beam_debug.c +++ b/erts/emulator/beam/beam_debug.c @@ -157,6 +157,25 @@ void debug_dump_code(BeamInstr *I, int num) } #endif +BIF_RETTYPE +erts_debug_instructions_0(BIF_ALIST_0) +{ + int i = 0; + Uint needed = num_instructions * 2; + Eterm* hp; + Eterm res = NIL; + + for (i = 0; i < num_instructions; i++) { + needed += 2*strlen(opc[i].name); + } + hp = HAlloc(BIF_P, needed); + for (i = num_instructions-1; i >= 0; i--) { + Eterm s = erts_bld_string_n(&hp, 0, opc[i].name, strlen(opc[i].name)); + res = erts_bld_cons(&hp, 0, s, res); + } + return res; +} + Eterm erts_debug_disassemble_1(Process* p, Eterm addr) { diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab index 60b4b1946b..d9dd80fa8b 100644 --- a/erts/emulator/beam/bif.tab +++ b/erts/emulator/beam/bif.tab @@ -660,6 +660,7 @@ bif erts_debug:display/1 bif 'erl.system.debug':display/1 ebif_erts_debug_display_1 bif erts_debug:dist_ext_to_term/2 bif 'erl.system.debug':dist_ext_to_term/2 ebif_erts_debug_dist_ext_to_term_2 +bif erts_debug:instructions/0 # # Monitor testing bif's... diff --git a/erts/emulator/test/erts_debug_SUITE.erl b/erts/emulator/test/erts_debug_SUITE.erl index e60a999df1..934a1b10a4 100644 --- a/erts/emulator/test/erts_debug_SUITE.erl +++ b/erts/emulator/test/erts_debug_SUITE.erl @@ -21,10 +21,10 @@ -include("test_server.hrl"). -export([all/1,init_per_testcase/2,fin_per_testcase/2, - flat_size/1,flat_size_big/1,df/1]). + flat_size/1,flat_size_big/1,df/1,instructions/1]). all(suite) -> - [flat_size,flat_size_big,df]. + [flat_size,flat_size_big,df,instructions]. init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) -> Dog=?t:timetrap(?t:minutes(2)), @@ -70,3 +70,8 @@ df(Config) when is_list(Config) -> pps() -> {erlang:ports()}. + +instructions(Config) when is_list(Config) -> + ?line Is = erts_debug:instructions(), + ?line _ = [list_to_atom(I) || I <- Is], + ok. |