genode/repos/dde_rump/src/lib/rump/bootstrap.cc
2019-05-27 14:46:54 +02:00

80 lines
1.5 KiB
C++

/*
* \brief Call initialization functions for all modules and components
* \author Sebastian Sumpf
* \date 2013-12-12
*/
/*
* Copyright (C) 2013-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
extern "C" {
#include <sys/types.h>
#include <rump/rumpuser.h>
#include <exec_elf.h>
}
#include <rump/env.h>
#include <base/log.h>
#include <base/shared_object.h>
#include <util/string.h>
#ifdef _LP64
typedef Elf64_Dyn Elf_Dyn;
typedef Elf64_Sym Elf_Sym;
#else
typedef Elf32_Dyn Elf_Dyn;
typedef Elf32_Sym Elf_Sym;
#endif
static bool const verbose = false;
static Genode::Shared_object *obj_main;
static Genode::Env &env()
{
return Rump::env().env();
}
static Genode::Allocator &heap()
{
return Rump::env().heap();
}
void rumpuser_dl_bootstrap(rump_modinit_fn domodinit, rump_symload_fn symload,
rump_compload_fn compload)
{
/* open main program and request link map */
using namespace Genode;
try {
obj_main = new (heap()) Shared_object(::env(), heap(), nullptr,
Shared_object::BIND_NOW,
Shared_object::KEEP);
}
catch (...) { error("could not dlopen the main executable"); return; }
}
void * rumpuser_dl_globalsym(const char *symname)
{
void *addr = 0;
try { addr = obj_main->lookup(symname); }
catch (...) { }
if (verbose)
Genode::log("Lookup: ", symname, " addr ", addr);
return addr;
}