diff options
| author | Björn Gustavsson <[email protected]> | 2016-06-17 05:23:08 +0200 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2016-06-22 12:00:38 +0200 |
| commit | 644cc778e9770b847700dca41a0c3ebe20da64df (patch) | |
| tree | 1f453dfe5cc08f94eed2e6dd52c9de819646cf3d /erts/emulator/beam | |
| parent | 6a6c72801e6fb021851b4f2591b03ed136a27363 (diff) | |
| download | otp-644cc778e9770b847700dca41a0c3ebe20da64df.tar.gz otp-644cc778e9770b847700dca41a0c3ebe20da64df.tar.bz2 otp-644cc778e9770b847700dca41a0c3ebe20da64df.zip | |
beam_makeops: Save some memory by making loader tables 'const'
Before:
$ size bin/x86_64-unknown-linux-gnu/beam.smp
text data bss dec hex filename
3080982 188369 158472 3427823 344def bin/x86_64-unknown-linux-gnu/beam.smp
After:
$ size bin/x86_64-unknown-linux-gnu/beam.smp
text data bss dec hex filename
3164694 104657 158472 3427823 344def bin/x86_64-unknown-linux-gnu/beam.smp
Diffstat (limited to 'erts/emulator/beam')
| -rw-r--r-- | erts/emulator/beam/beam_load.c | 4 | ||||
| -rw-r--r-- | erts/emulator/beam/beam_load.h | 2 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_vm.h | 4 |
3 files changed, 5 insertions, 5 deletions
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index 0c2743beb2..4ca2c6a13f 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -4860,7 +4860,7 @@ transform_engine(LoaderState* st) { Uint op; int ap; /* Current argument. */ - Uint* restart; /* Where to restart if current match fails. */ + const Uint* restart; /* Where to restart if current match fails. */ GenOpArg var[TE_MAX_VARS]; /* Buffer for variables. */ GenOpArg* rest_args = NULL; int num_rest_args = 0; @@ -4869,7 +4869,7 @@ transform_engine(LoaderState* st) GenOp* instr; GenOp* first = st->genop; GenOp* keep = NULL; - Uint* pc; + const Uint* pc; static Uint restart_fail[1] = {TOP_fail}; ASSERT(gen_opc[first->op].transform != -1); diff --git a/erts/emulator/beam/beam_load.h b/erts/emulator/beam/beam_load.h index fd2dd97fee..92a9abddbf 100644 --- a/erts/emulator/beam/beam_load.h +++ b/erts/emulator/beam/beam_load.h @@ -35,7 +35,7 @@ typedef struct gen_op_entry { int transform; } GenOpEntry; -extern GenOpEntry gen_opc[]; +extern const GenOpEntry gen_opc[]; #ifdef NO_JUMP_TABLE #define BeamOp(Op) (Op) diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h index 22c8e8ee12..60c2349f36 100644 --- a/erts/emulator/beam/erl_vm.h +++ b/erts/emulator/beam/erl_vm.h @@ -148,8 +148,8 @@ typedef struct op_entry { char* sign; /* Signature string. */ } OpEntry; -extern OpEntry opc[]; /* Description of all instructions. */ -extern int num_instructions; /* Number of instruction in opc[]. */ +extern const OpEntry opc[]; /* Description of all instructions. */ +extern const int num_instructions; /* Number of instruction in opc[]. */ extern Uint erts_instr_count[]; |