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Diffstat (limited to 'asmrun/startup.c')
-rw-r--r-- | asmrun/startup.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/asmrun/startup.c b/asmrun/startup.c new file mode 100644 index 000000000..780850bb3 --- /dev/null +++ b/asmrun/startup.c @@ -0,0 +1,83 @@ +/***********************************************************************/ +/* */ +/* Objective Caml */ +/* */ +/* Xavier Leroy and Damien Doligez, INRIA Rocquencourt */ +/* */ +/* Copyright 1996 Institut National de Recherche en Informatique et */ +/* Automatique. Distributed only by permission. */ +/* */ +/***********************************************************************/ + +/* $Id$ */ + +/* Start-up code */ + +#include <stdio.h> +#include <stdlib.h> +#include "gc.h" +#include "gc_ctrl.h" +#include "misc.h" +#include "mlvalues.h" +#include "sys.h" + +header_t atom_table[256]; +char * static_data_start, * static_data_end; + +static void init_atoms() +{ + int i; + extern struct { char * begin; char * end; } caml_data_segments[]; + + for (i = 0; i < 256; i++) atom_table[i] = Make_header(0, i, White); + static_data_start = caml_data_segments[0].begin; + static_data_end = caml_data_segments[0].end; + for (i = 1; caml_data_segments[i].begin != 0; i++) { + if (caml_data_segments[i].begin < static_data_start) + static_data_start = caml_data_segments[i].begin; + if (caml_data_segments[i].end > static_data_end) + static_data_end = caml_data_segments[i].end; + } +} + +extern value caml_start_program P((void)); + +int caml_main(argc, argv) + int argc; + char * argv[]; +{ + int verbose_init = 0, percent_free_init = Percent_free_def; + long minor_heap_init = Minor_heap_def, heap_chunk_init = Heap_chunk_def; + char * opt; + value retcode; + + init_ieee_floats(); +#ifdef DEBUG + verbose_init = 1; +#endif + /* Runtime options. The option letter is the first letter of the + last word of the ML name of the option (see [lib/gc.mli]). */ + opt = getenv ("CAMLRUNPARAM"); + if (opt != NULL){ + while (*opt != '\0'){ + switch (*opt++){ + case 's': sscanf (opt, "=%ld", &minor_heap_init); break; + case 'i': sscanf (opt, "=%ld", &heap_chunk_init); break; + case 'o': sscanf (opt, "=%d", &percent_free_init); break; + case 'v': sscanf (opt, "=%d", &verbose_init); break; + } + } + } + init_gc (minor_heap_init, heap_chunk_init, percent_free_init, verbose_init); + init_atoms(); + init_signals(); + sys_init(argv); + retcode = caml_start_program(); + if (retcode == 0) { + sys_exit(Val_int(0)); + } else { + fatal_error_arg("Fatal error: uncaught exception %s.\n", + String_val(Field(Field(retcode, 0), 0))); + } +} + |