145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. Distributed only by permission. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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/* Primitives for the toplevel */
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#include "alloc.h"
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#include "config.h"
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#include "fail.h"
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#include "fix_code.h"
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#include "interp.h"
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#include "major_gc.h"
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#include "memory.h"
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#include "minor_gc.h"
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#include "misc.h"
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#include "mlvalues.h"
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#include "prims.h"
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#include "stacks.h"
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#ifndef NATIVE_CODE
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value get_global_data(value unit) /* ML */
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{
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return global_data;
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}
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value reify_bytecode(value prog, value len) /* ML */
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{
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value clos;
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#ifdef ARCH_BIG_ENDIAN
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fixup_endianness((code_t) prog, (asize_t) Long_val(len));
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#endif
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#ifdef THREADED_CODE
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thread_code((code_t) prog, (asize_t) Long_val(len));
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#endif
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clos = alloc_small (1, Closure_tag);
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Code_val(clos) = (code_t) prog;
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return clos;
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}
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value realloc_global(value size) /* ML */
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{
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mlsize_t requested_size, actual_size, i;
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value new_global_data;
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requested_size = Long_val(size);
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actual_size = Wosize_val(global_data);
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if (requested_size >= actual_size) {
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requested_size = (requested_size + 0x100) & 0xFFFFFF00;
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gc_message (0x08, "Growing global data to %lu entries\n", requested_size);
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new_global_data = alloc_shr(requested_size, 0);
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for (i = 0; i < actual_size; i++)
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initialize(&Field(new_global_data, i), Field(global_data, i));
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for (i = actual_size; i < requested_size; i++){
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Field (new_global_data, i) = Val_long (0);
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}
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global_data = new_global_data;
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}
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return Val_unit;
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}
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value available_primitives(value unit) /* ML */
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{
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return copy_string_array(names_of_cprim);
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}
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value get_current_environment(value unit) /* ML */
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{
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return *extern_sp;
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}
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value invoke_traced_function(value codeptr, value env, value arg) /* ML */
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{
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/* Stack layout on entry:
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return frame into instrument_closure function
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arg3 to call_original_code (arg)
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arg2 to call_original_code (env)
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arg1 to call_original_code (codeptr)
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arg3 to call_original_code (arg)
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arg2 to call_original_code (env)
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saved env */
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/* Stack layout on exit:
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return frame into instrument_closure function
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actual arg to code (arg)
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pseudo return frame into codeptr:
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extra_args = 0
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environment = env
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PC = codeptr
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arg3 to call_original_code (arg) same 6 bottom words as
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arg2 to call_original_code (env) on entrance, but
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arg1 to call_original_code (codeptr) shifted down 4 words
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arg3 to call_original_code (arg)
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arg2 to call_original_code (env)
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saved env */
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value * osp, * nsp;
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int i;
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osp = extern_sp;
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extern_sp -= 4;
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nsp = extern_sp;
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for (i = 0; i < 6; i++) nsp[i] = osp[i];
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nsp[6] = codeptr;
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nsp[7] = env;
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nsp[8] = Val_int(0);
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nsp[9] = arg;
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return Val_unit;
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}
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#else
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/* Dummy definitions to support compilation of ocamlc.opt */
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value get_global_data(value unit)
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{
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invalid_argument("Meta.get_global_data");
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}
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value realloc_global(value size)
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{
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invalid_argument("Meta.realloc_global");
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}
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value available_primitives(value unit)
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{
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invalid_argument("Meta.available_primitives");
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}
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value invoke_traced_function(value codeptr, value env, value arg)
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{
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invalid_argument("Meta.invoke_traced_function");
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}
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#endif
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