1 /* Memory handling for libdw. 2 Copyright (C) 2003, 2004 Red Hat, Inc. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 2003. 4 5 This program is Open Source software; you can redistribute it and/or 6 modify it under the terms of the Open Software License version 1.0 as 7 published by the Open Source Initiative. 8 9 You should have received a copy of the Open Software License along 10 with this program; if not, you may obtain a copy of the Open Software 11 License version 1.0 from http://www.opensource.org/licenses/osl.php or 12 by writing the Open Source Initiative c/o Lawrence Rosen, Esq., 13 3001 King Ranch Road, Ukiah, CA 95482. */ 14 15 #ifdef HAVE_CONFIG_H 16 # include <config.h> 17 #endif 18 19 #include <error.h> 20 #include <errno.h> 21 #include <stdlib.h> 22 #include <sys/param.h> 23 #include "libdwP.h" 24 25 26 void * 27 __libdw_allocate (Dwarf *dbg, size_t minsize) 28 { 29 size_t size = MAX (dbg->mem_default_size, 30 2 * minsize + offsetof (struct libdw_memblock, mem)); 31 struct libdw_memblock *newp = malloc (size); 32 if (newp == NULL) 33 dbg->oom_handler (); 34 35 newp->size = newp->remaining = size - offsetof (struct libdw_memblock, mem); 36 37 newp->prev = dbg->mem_tail; 38 dbg->mem_tail = newp; 39 40 return newp->mem; 41 } 42 43 44 Dwarf_OOM 45 dwarf_new_oom_handler (Dwarf *dbg, Dwarf_OOM handler) 46 { 47 Dwarf_OOM old = dbg->oom_handler; 48 dbg->oom_handler = handler; 49 return old; 50 } 51 52 53 void 54 __attribute ((noreturn, visibility ("hidden"))) 55 __libdw_oom (void) 56 { 57 while (1) 58 error (EXIT_FAILURE, ENOMEM, "libdw"); 59 } 60
