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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [stdlib/] [__call_atexit.c] - Rev 158
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/* * COmmon routine to call call registered atexit-like routines. */ #include <stdlib.h> #include <reent.h> #include "atexit.h" /* * Call registered exit handlers. If D is null then all handlers are called, * otherwise only the handlers from that DSO are called. */ void _DEFUN (__call_exitprocs, (code, d), int code _AND _PTR d) { register struct _atexit *p; struct _atexit **lastp; register struct _on_exit_args * args; register int n; int i; void (*fn) (void); restart: p = _GLOBAL_REENT->_atexit; lastp = &_GLOBAL_REENT->_atexit; while (p) { #ifdef _REENT_SMALL args = p->_on_exit_args_ptr; #else args = &p->_on_exit_args; #endif for (n = p->_ind - 1; n >= 0; n--) { int ind; i = 1 << n; /* Skip functions not from this dso. */ if (d && (!args || args->_dso_handle[n] != d)) continue; /* Remove the function now to protect against the function calling exit recursively. */ fn = p->_fns[n]; if (n == p->_ind - 1) p->_ind--; else p->_fns[n] = NULL; /* Skip functions that have already been called. */ if (!fn) continue; ind = p->_ind; /* Call the function. */ if (!args || (args->_fntypes & i) == 0) fn (); else if ((args->_is_cxa & i) == 0) (*((void (*)(int, _PTR)) fn))(code, args->_fnargs[n]); else (*((void (*)(_PTR)) fn))(args->_fnargs[n]); /* The function we called call atexit and registered another function (or functions). Call these new functions before continuing with the already registered functions. */ if (ind != p->_ind || *lastp != p) goto restart; } #ifndef _ATEXIT_DYNAMIC_ALLOC break; #else /* Move to the next block. Free empty blocks except the last one, which is part of _GLOBAL_REENT. */ if (p->_ind == 0 && p->_next) { /* Remove empty block from the list. */ *lastp = p->_next; #ifdef _REENT_SMALL if (args) free (args); #endif free (p); p = *lastp; } else { lastp = &p->_next; p = p->_next; } #endif } }