1 files changed, 0 insertions, 744 deletions
diff --git a/lib/mlibc/sysdeps/managarm/generic/fork-exec.cpp b/lib/mlibc/sysdeps/managarm/generic/fork-exec.cpp
deleted file mode 100644
index 8da0e1e..0000000
--- a/lib/mlibc/sysdeps/managarm/generic/fork-exec.cpp
+++ /dev/null
@@ -1,744 +0,0 @@
-
-// for _Exit()
-#include <stdlib.h>
-
-#include <string.h>
-#include <errno.h>
-
-// for fork() and execve()
-#include <unistd.h>
-// for sched_yield()
-#include <sched.h>
-#include <stdio.h>
-// for getrusage()
-#include <sys/resource.h>
-// for waitpid()
-#include <sys/wait.h>
-#include <pthread.h>
-
-#include <bits/ensure.h>
-#include <mlibc/allocator.hpp>
-#include <mlibc/debug.hpp>
-#include <mlibc/posix-pipe.hpp>
-#include <mlibc/thread-entry.hpp>
-#include <mlibc/all-sysdeps.hpp>
-#include <posix.frigg_bragi.hpp>
-#include <protocols/posix/supercalls.hpp>
-
-namespace mlibc {
-
-int sys_futex_tid() {
-	HelWord tid = 0;
-	HEL_CHECK(helSyscall0_1(kHelCallSuper + posix::superGetTid,
-				&tid));
-
-	return tid;
-}
-
-int sys_futex_wait(int *pointer, int expected, const struct timespec *time) {
-	// This implementation is inherently signal-safe.
-	if(time) {
-		if(helFutexWait(pointer, expected, time->tv_nsec + time->tv_sec * 1000000000))
-			return -1;
-		return 0;
-	}
-	if(helFutexWait(pointer, expected, -1))
-		return -1;
-	return 0;
-}
-
-int sys_futex_wake(int *pointer) {
-	// This implementation is inherently signal-safe.
-	if(helFutexWake(pointer))
-		return -1;
-	return 0;
-}
-
-int sys_waitpid(pid_t pid, int *status, int flags, struct rusage *ru, pid_t *ret_pid) {
-	if(ru) {
-		mlibc::infoLogger() << "mlibc: struct rusage in sys_waitpid is unsupported" << frg::endlog;
-		return ENOSYS;
-	}
-
-	SignalGuard sguard;
-
-	managarm::posix::CntRequest<MemoryAllocator> req(getSysdepsAllocator());
-	req.set_request_type(managarm::posix::CntReqType::WAIT);
-	req.set_pid(pid);
-	req.set_flags(flags);
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	if(resp.error() == managarm::posix::Errors::ILLEGAL_ARGUMENTS) {
-		return EINVAL;
-	}
-	__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-	if(status)
-		*status = resp.mode();
-	*ret_pid = resp.pid();
-	return 0;
-}
-
-int sys_waitid(idtype_t idtype, id_t id, siginfo_t *info, int options) {
-	SignalGuard sguard;
-
-	managarm::posix::WaitIdRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	req.set_idtype(idtype);
-	req.set_id(id);
-	req.set_flags(options);
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::WaitIdResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	if(resp.error() == managarm::posix::Errors::ILLEGAL_ARGUMENTS) {
-		return EINVAL;
-	}
-	__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-	info->si_pid = resp.pid();
-	info->si_uid = resp.uid();
-	info->si_signo = SIGCHLD;
-	info->si_status = resp.sig_status();
-	info->si_code = resp.sig_code();
-	return 0;
-}
-
-void sys_exit(int status) {
-	// This implementation is inherently signal-safe.
-	HEL_CHECK(helSyscall1(kHelCallSuper + posix::superExit, status));
-	__builtin_trap();
-}
-
-void sys_yield() {
-	// This implementation is inherently signal-safe.
-	HEL_CHECK(helYield());
-}
-
-int sys_sleep(time_t *secs, long *nanos) {
-	SignalGuard sguard;
-	globalQueue.trim();
-
-	uint64_t now;
-	HEL_CHECK(helGetClock(&now));
-
-	uint64_t async_id;
-	HEL_CHECK(helSubmitAwaitClock(now + uint64_t(*secs) * 1000000000 + uint64_t(*nanos),
-			globalQueue.getQueue(), 0, &async_id));
-
-	auto element = globalQueue.dequeueSingle();
-	auto result = parseSimple(element);
-	HEL_CHECK(result->error);
-
-	*secs = 0;
-	*nanos = 0;
-
-	return 0;
-}
-
-int sys_fork(pid_t *child) {
-	// This implementation is inherently signal-safe.
-	int res;
-
-	sigset_t full_sigset;
-	res = sigfillset(&full_sigset);
-	__ensure(!res);
-
-	sigset_t former_sigset;
-	res = sigprocmask(SIG_SETMASK, &full_sigset, &former_sigset);
-	__ensure(!res);
-
-	HelWord out;
-	HEL_CHECK(helSyscall0_1(kHelCallSuper + posix::superFork, &out));
-	*child = out;
-
-	if(!out) {
-		clearCachedInfos();
-		globalQueue.recreateQueue();
-	}
-
-	res = sigprocmask(SIG_SETMASK, &former_sigset, nullptr);
-	__ensure(!res);
-
-	return 0;
-}
-
-int sys_execve(const char *path, char *const argv[], char *const envp[]) {
-	// TODO: Make this function signal-safe!
-	frg::string<MemoryAllocator> args_area(getSysdepsAllocator());
-	for(auto it = argv; *it; ++it)
-		args_area += frg::string_view{*it, strlen(*it) + 1};
-
-	frg::string<MemoryAllocator> env_area(getSysdepsAllocator());
-	for(auto it = envp; *it; ++it)
-		env_area += frg::string_view{*it, strlen(*it) + 1};
-
-	uintptr_t out;
-
-	HEL_CHECK(helSyscall6_1(kHelCallSuper + posix::superExecve,
-			reinterpret_cast<uintptr_t>(path),
-			strlen(path),
-			reinterpret_cast<uintptr_t>(args_area.data()),
-			args_area.size(),
-			reinterpret_cast<uintptr_t>(env_area.data()),
-			env_area.size(),
-			&out));
-
-	return out;
-}
-
-gid_t sys_getgid() {
-	SignalGuard sguard;
-
-	managarm::posix::GetGidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-	return resp.uid();
-}
-
-int sys_setgid(gid_t gid) {
-	SignalGuard sguard;
-
-	managarm::posix::SetGidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	req.set_uid(gid);
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	if(resp.error() == managarm::posix::Errors::ACCESS_DENIED) {
-		return EPERM;
-	}else if(resp.error() == managarm::posix::Errors::ILLEGAL_ARGUMENTS) {
-		return EINVAL;
-	}else{
-		__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-		return 0;
-	}
-}
-
-gid_t sys_getegid() {
-	SignalGuard sguard;
-
-	managarm::posix::GetEgidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-	return resp.uid();
-}
-
-int sys_setegid(gid_t egid) {
-	SignalGuard sguard;
-
-	managarm::posix::SetEgidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	req.set_uid(egid);
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	if(resp.error() == managarm::posix::Errors::ACCESS_DENIED) {
-		return EPERM;
-	}else if(resp.error() == managarm::posix::Errors::ILLEGAL_ARGUMENTS) {
-		return EINVAL;
-	}else{
-		__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-		return 0;
-	}
-}
-
-uid_t sys_getuid() {
-	SignalGuard sguard;
-
-	managarm::posix::GetUidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-	return resp.uid();
-}
-
-int sys_setuid(uid_t uid) {
-	SignalGuard sguard;
-
-	managarm::posix::SetUidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	req.set_uid(uid);
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	if(resp.error() == managarm::posix::Errors::ACCESS_DENIED) {
-		return EPERM;
-	}else if(resp.error() == managarm::posix::Errors::ILLEGAL_ARGUMENTS) {
-		return EINVAL;
-	}else{
-		__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-		return 0;
-	}
-}
-
-uid_t sys_geteuid() {
-	SignalGuard sguard;
-
-	managarm::posix::GetEuidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-	return resp.uid();
-}
-
-int sys_seteuid(uid_t euid) {
-	SignalGuard sguard;
-
-	managarm::posix::SetEuidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	req.set_uid(euid);
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	if(resp.error() == managarm::posix::Errors::ACCESS_DENIED) {
-		return EPERM;
-	}else if(resp.error() == managarm::posix::Errors::ILLEGAL_ARGUMENTS) {
-		return EINVAL;
-	}else{
-		__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-		return 0;
-	}
-}
-
-pid_t sys_gettid() {
-	// TODO: use an actual gettid syscall.
-	return sys_getpid();
-}
-
-pid_t sys_getpid() {
-	SignalGuard sguard;
-
-	managarm::posix::GetPidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-	return resp.pid();
-}
-
-pid_t sys_getppid() {
-	SignalGuard sguard;
-
-	managarm::posix::GetPpidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-	return resp.pid();
-}
-
-int sys_getsid(pid_t pid, pid_t *sid) {
-	SignalGuard sguard;
-
-	managarm::posix::GetSidRequest<MemoryAllocator> req(getSysdepsAllocator());
-	req.set_pid(pid);
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	if(resp.error() == managarm::posix::Errors::NO_SUCH_RESOURCE) {
-		*sid = 0;
-		return ESRCH;
-	} else {
-		__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-		*sid = resp.pid();
-		return 0;
-	}
-}
-
-int sys_getpgid(pid_t pid, pid_t *pgid) {
-	SignalGuard sguard;
-
-	managarm::posix::GetPgidRequest<MemoryAllocator> req(getSysdepsAllocator());
-	req.set_pid(pid);
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	if(resp.error() == managarm::posix::Errors::NO_SUCH_RESOURCE) {
-		*pgid = 0;
-		return ESRCH;
-	} else {
-		__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-		*pgid = resp.pid();
-		return 0;
-	}
-}
-
-int sys_setpgid(pid_t pid, pid_t pgid) {
-	SignalGuard sguard;
-
-	managarm::posix::SetPgidRequest<MemoryAllocator> req(getSysdepsAllocator());
-
-	req.set_pid(pid);
-	req.set_pgid(pgid);
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	if(resp.error() == managarm::posix::Errors::INSUFFICIENT_PERMISSION) {
-		return EPERM;
-	}else if(resp.error() == managarm::posix::Errors::NO_SUCH_RESOURCE) {
-		return ESRCH;
-	}else if(resp.error() == managarm::posix::Errors::ACCESS_DENIED) {
-		return EACCES;
-	}else{
-		__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-		return 0;
-	}
-}
-
-int sys_getrusage(int scope, struct rusage *usage) {
-	memset(usage, 0, sizeof(struct rusage));
-
-	SignalGuard sguard;
-
-	managarm::posix::CntRequest<MemoryAllocator> req(getSysdepsAllocator());
-	req.set_request_type(managarm::posix::CntReqType::GET_RESOURCE_USAGE);
-	req.set_mode(scope);
-
-	auto [offer, send_head, recv_resp] =
-		exchangeMsgsSync(
-			getPosixLane(),
-			helix_ng::offer(
-				helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
-				helix_ng::recvInline()
-			)
-		);
-
-	HEL_CHECK(offer.error());
-	HEL_CHECK(send_head.error());
-	HEL_CHECK(recv_resp.error());
-
-	managarm::posix::SvrResponse<MemoryAllocator> resp(getSysdepsAllocator());
-	resp.ParseFromArray(recv_resp.data(), recv_resp.length());
-	__ensure(resp.error() == managarm::posix::Errors::SUCCESS);
-
-	usage->ru_utime.tv_sec = resp.ru_user_time() / 1'000'000'000;
-	usage->ru_utime.tv_usec = (resp.ru_user_time() % 1'000'000'000) / 1'000;
-
-	return 0;
-}
-
-int sys_getschedparam(void *tcb, int *policy, struct sched_param *param) {
-	if(tcb != mlibc::get_current_tcb()) {
-		return ESRCH;
-	}
-
-	*policy = SCHED_OTHER;
-	int prio = 0;
-	// TODO(no92): use helGetPriority(kHelThisThread) here
-	mlibc::infoLogger() << "\e[31mlibc: sys_getschedparam always returns priority 0\e[39m" << frg::endlog;
-	param->sched_priority = prio;
-
-	return 0;
-}
-
-int sys_setschedparam(void *tcb, int policy, const struct sched_param *param) {
-	if(tcb != mlibc::get_current_tcb()) {
-		return ESRCH;
-	}
-
-	if(policy != SCHED_OTHER) {
-		return EINVAL;
-	}
-
-	HEL_CHECK(helSetPriority(kHelThisThread, param->sched_priority));
-
-	return 0;
-}
-
-int sys_clone(void *tcb, pid_t *pid_out, void *stack) {
-	HelWord pid = 0;
-	HEL_CHECK(helSyscall2_1(kHelCallSuper + posix::superClone,
-				reinterpret_cast<HelWord>(__mlibc_start_thread),
-				reinterpret_cast<HelWord>(stack),
-				&pid));
-
-	if (pid_out)
-		*pid_out = pid;
-
-	return 0;
-}
-
-int sys_tcb_set(void *pointer) {
-#if defined(__aarch64__)
-	uintptr_t addr = reinterpret_cast<uintptr_t>(pointer);
-	addr += sizeof(Tcb) - 0x10;
-	asm volatile ("msr tpidr_el0, %0" :: "r"(addr));
-#else
-	HEL_CHECK(helWriteFsBase(pointer));
-#endif
-	return 0;
-}
-
-void sys_thread_exit() {
-	// This implementation is inherently signal-safe.
-	HEL_CHECK(helSyscall1(kHelCallSuper + posix::superExit, 0));
-	__builtin_trap();
-}
-
-int sys_thread_setname(void *tcb, const char *name) {
-	if(strlen(name) > 15) {
-		return ERANGE;
-	}
-
-	auto t = reinterpret_cast<Tcb *>(tcb);
-	char *path;
-	int cs = 0;
-
-	if(asprintf(&path, "/proc/self/task/%d/comm", t->tid) < 0) {
-		return ENOMEM;
-	}
-
-	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
-
-	int fd;
-	if(int e = sys_open(path, O_WRONLY, 0, &fd); e) {
-		return e;
-	}
-
-	if(int e = sys_write(fd, name, strlen(name) + 1, NULL)) {
-		return e;
-	}
-
-	sys_close(fd);
-
-	pthread_setcancelstate(cs, 0);
-
-	return 0;
-}
-
-int sys_thread_getname(void *tcb, char *name, size_t size) {
-	auto t = reinterpret_cast<Tcb *>(tcb);
-	char *path;
-	int cs = 0;
-	ssize_t real_size = 0;
-
-	if(asprintf(&path, "/proc/self/task/%d/comm", t->tid) < 0) {
-		return ENOMEM;
-	}
-
-	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
-
-	int fd;
-	if(int e = sys_open(path, O_RDONLY | O_CLOEXEC, 0, &fd); e) {
-		return e;
-	}
-
-	if(int e = sys_read(fd, name, size, &real_size)) {
-		return e;
-	}
-
-	name[real_size - 1] = 0;
-	sys_close(fd);
-
-	pthread_setcancelstate(cs, 0);
-
-	if(static_cast<ssize_t>(size) <= real_size) {
-		return ERANGE;
-	}
-
-	return 0;
-}
-
-
-} //namespace mlibc
-