libdwfl/dwfl_getdwarf.c

/* Iterate through modules to fetch Dwarf information.
   Copyright (C) 2005, 2008 Red Hat, Inc.
   This file is part of Red Hat elfutils.

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   Red Hat elfutils is an included package of the Open Invention Network.
   An included package of the Open Invention Network is a package for which
   Open Invention Network licensees cross-license their patents.  No patent
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#include "libdwflP.h"

struct module_callback_info
{
  int (*callback) (Dwfl_Module *, void **,
		   const char *, Dwarf_Addr,
		   Dwarf *, Dwarf_Addr, void *);
  void *arg;
};

static int
module_callback (Dwfl_Module *mod, void **userdata,
		 const char *name, Dwarf_Addr start, void *arg)
{
  const struct module_callback_info *info = arg;
  Dwarf_Addr bias = 0;
  Dwarf *dw = INTUSE(dwfl_module_getdwarf) (mod, &bias);
  return (*info->callback) (mod, userdata, name, start, dw, bias, info->arg);
}

ptrdiff_t
dwfl_getdwarf (Dwfl *dwfl,
	       int (*callback) (Dwfl_Module *, void **,
				const char *, Dwarf_Addr,
				Dwarf *, Dwarf_Addr, void *),
	       void *arg,
	       ptrdiff_t offset)
{
  struct module_callback_info info = { callback, arg };
  return INTUSE(dwfl_getmodules) (dwfl, &module_callback, &info, offset);
}