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Diffstat (limited to 'erts/emulator/beam/export.h')
-rw-r--r-- | erts/emulator/beam/export.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/erts/emulator/beam/export.h b/erts/emulator/beam/export.h new file mode 100644 index 0000000000..cd6af6dd85 --- /dev/null +++ b/erts/emulator/beam/export.h @@ -0,0 +1,79 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 1996-2009. 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 + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +#ifndef __EXPORT_H__ +#define __EXPORT_H__ + +#ifndef __SYS_H__ +#include "sys.h" +#endif + +#ifndef __INDEX_H__ +#include "index.h" +#endif + +/* +** Export entry +*/ +typedef struct export +{ + IndexSlot slot; /* MUST BE LOCATED AT TOP OF STRUCT!!! */ + void* address; /* Pointer to code for function. */ + struct binary* match_prog_set; /* Match program for tracing. */ + + Eterm fake_op_func_info_for_hipe[2]; /* MUST be just before code[] */ + /* + * code[0]: Tagged atom for module. + * code[1]: Tagged atom for function. + * code[2]: Arity (untagged integer). + * code[3]: This entry is 0 unless the 'address' field points to it. + * Threaded code instruction to load function + * (em_call_error_handler), execute BIF (em_apply_bif, + * em_apply_apply), or call a traced function + * (em_call_traced_function). + * code[4]: Function pointer to BIF function (for BIFs only) + * or pointer to threaded code if the module has an + * on_load function that has not been run yet. + * Otherwise: 0. + */ + Eterm code[5]; +} Export; + + +void init_export_table(void); +void export_info(int, void *); + +Export* erts_find_export_entry(Eterm m, Eterm f, unsigned int a); +Export* erts_export_put(Eterm mod, Eterm func, unsigned int arity); + + +Export* erts_export_get_or_make_stub(Eterm, Eterm, unsigned); +void erts_export_consolidate(void); + +Export *export_list(int); +int export_list_size(void); +int export_table_sz(void); +Export *export_get(Export*); + +#include "beam_load.h" /* For em_* extern declarations */ +#define ExportIsBuiltIn(EntryPtr) \ +(((EntryPtr)->address == (EntryPtr)->code + 3) && \ + ((EntryPtr)->code[3] == (Uint) em_apply_bif)) + +#endif |