value caml_startup_common(char_os **argv, int pooling)
{
char_os * exe_name, * proc_self_exe;
char tos;
CAML_INIT_DOMAIN_STATE;
/* Determine options */
caml_parse_ocamlrunparam();
#ifdef DEBUG
caml_gc_message (-1, "### OCaml runtime: debug mode ###\n");
#endif
if (caml_params->cleanup_on_exit)
pooling = 1;
if (!caml_startup_aux(pooling))
return Val_unit;
#ifdef WITH_SPACETIME
caml_spacetime_initialize();
#endif
caml_init_ieee_floats();
#if defined(_MSC_VER) && __STDC_SECURE_LIB__ >= 200411L
caml_install_invalid_parameter_handler();
#endif
caml_init_custom_operations();
caml_init_gc ();
if (caml_params->backtrace_enabled_init)
caml_record_backtrace(Val_int(1));
/* Capture 16-byte aligned (ceil) system_stack_high */
Caml_state->system_stack_high =
(char*)((((uintnat)&tos + 16) >> 4) << 4);
init_segments();
caml_init_signals();
#ifdef _WIN32
caml_win32_overflow_detection();
#endif
caml_debugger_init (); /* force debugger.o stub to be linked */
exe_name = argv[0];
if (exe_name == NULL) exe_name = _T("");
proc_self_exe = caml_executable_name();
if (proc_self_exe != NULL)
exe_name = proc_self_exe;
else
exe_name = caml_search_exe_in_path(exe_name);
caml_init_argv(exe_name, argv);
if (sigsetjmp(caml_termination_jmpbuf.buf, 0)) {
if (caml_termination_hook != NULL) caml_termination_hook(NULL);
return Val_unit;
}
caml_init_main_stack();
return caml_start_program(Caml_state->young_ptr);
}
void caml_init_signals(void)
{
/* Bound-check trap handling */
#if defined(TARGET_sparc) && defined(SYS_solaris)
{ struct sigaction act;
sigemptyset(&act.sa_mask);
SET_SIGACT(act, trap_handler);
act.sa_flags |= SA_NODEFER;
sigaction(SIGILL, &act, NULL);
}
#endif
#if defined(TARGET_power)
{ struct sigaction act;
sigemptyset(&act.sa_mask);
SET_SIGACT(act, trap_handler);
#if !defined(SYS_rhapsody)
act.sa_flags |= SA_NODEFER;
#endif
sigaction(SIGTRAP, &act, NULL);
}
#endif
/* Stack overflow handling */
#ifdef HAS_STACK_OVERFLOW_DETECTION
{
stack_t stk;
struct sigaction act;
stk.ss_sp = sig_alt_stack;
stk.ss_size = SIGSTKSZ;
stk.ss_flags = 0;
SET_SIGACT(act, segv_handler);
act.sa_flags |= SA_ONSTACK | SA_NODEFER;
sigemptyset(&act.sa_mask);
system_stack_top = (char *) &act;
if (sigaltstack(&stk, NULL) == 0) { sigaction(SIGSEGV, &act, NULL); }
}
#endif
#if defined(_WIN32) && !defined(_WIN64)
caml_win32_overflow_detection();
#endif
}
