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noux: implement some libc dummy function 

and quieten some noisy messages in non-verbose mode

Issue #485
This commit is contained in:
Alexander Boettcher 2013-09-16 15:39:36 +02:00 committed by Norman Feske
parent 94bce1425e
commit 8ca068be43
1 changed files with 75 additions and 2 deletions
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77
ports/src/lib/libc_noux/plugin.cc
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@ -177,9 +177,48 @@ extern "C" uid_t geteuid()
}
void *sbrk(intptr_t increment)
{
if (verbose)
PDBG("not implemented %d", increment);
errno = ENOMEM;
return reinterpret_cast<void *>(-1);
}
extern "C" int getrlimit(int resource, struct rlimit *rlim)
{
PDBG("not implemented");
switch (resource) {
case RLIMIT_STACK:
{
using namespace Genode;
Thread_base * me = Thread_base::myself();
if (me) {
addr_t top = reinterpret_cast<addr_t>(me->stack_top());
addr_t cur = reinterpret_cast<addr_t>(me->stack_base());
rlim->rlim_cur = rlim->rlim_max = top - cur;
return 0;
}
/* XXX - fix Thread_base::myself to be working also for main thread */
rlim->rlim_cur = rlim->rlim_max = 64 * 1024;
return 0;
}
case RLIMIT_AS:
#ifdef __x86_64__
rlim->rlim_cur = rlim->rlim_max = 0x800000000000UL;
#else
rlim->rlim_cur = rlim->rlim_max = 0xc0000000UL;
#endif
return 0;
case RLIMIT_RSS:
rlim->rlim_cur = rlim->rlim_max = Genode::env()->ram_session()->quota();
return 0;
}
errno = ENOSYS;
PDBG("not implemented %d", resource);
return -1;
}
@ -424,6 +463,9 @@ extern "C" pid_t getpid(void)
}
extern "C" pid_t getppid(void) { return getpid(); }
extern "C" int access(char const *pathname, int mode)
{
if (verbose)
@ -463,6 +505,23 @@ extern "C" pid_t _wait4(pid_t pid, int *status, int options,
}
int getrusage(int who, struct rusage *usage)
{
if (verbose)
PDBG("not implemented");
errno = ENOSYS;
return -1;
}
void endpwent(void)
{
if (verbose)
PDBG("not implemented");
}
/********************
** Time functions **
********************/
@ -545,6 +604,14 @@ extern "C" int _sigprocmask(int how, const sigset_t *set, sigset_t *oldset)
}
extern "C" int _sigaction(int, const struct sigaction *, struct sigaction *)
{
/* XXX todo */
errno = ENOSYS;
return -1;
}
extern "C" int sigaction(int signum, const struct sigaction *act,
struct sigaction *oldact)
{
@ -1177,7 +1244,8 @@ namespace {
*
* XXX: FD_CLOEXEC not yet supported
*/
PWRN("fcntl(F_GETFD) not implemented, returning 0");
if (verbose)
PWRN("fcntl(F_GETFD) not implemented, returning 0");
return 0;
case F_SETFD:
@ -1354,6 +1422,7 @@ namespace {
return 0;
}
int Plugin::mkdir(const char *path, mode_t mode)
{
Genode::strncpy(sysio()->mkdir_in.path, path, sizeof(sysio()->mkdir_in.path));
@ -1373,6 +1442,7 @@ namespace {
return 0;
}
void *Plugin::mmap(void *addr_in, ::size_t length, int prot, int flags,
Libc::File_descriptor *fd, ::off_t offset)
{
@ -1404,12 +1474,14 @@ namespace {
return addr;
}
int Plugin::munmap(void *addr, ::size_t)
{
Libc::mem_alloc()->free(addr);
return 0;
}
Libc::File_descriptor *Plugin::socket(int domain, int type, int protocol)
{
sysio()->socket_in.domain = domain;
@ -1798,6 +1870,7 @@ extern char **genode_envp;
/* pointer to environment, provided by libc */
extern char **environ;
__attribute__((constructor))
void init_libc_noux(void)
{