From f5e48e94a2f4d4bbd6e5628c7f2afafc6dbcc459 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Thu, 7 Mar 2024 17:28:52 -0500
Subject: build: Build mlibc + add distclean target

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 lib/mlibc/sysdeps/linux/generic/thread.cpp | 60 ------------------------------
 1 file changed, 60 deletions(-)
 delete mode 100644 lib/mlibc/sysdeps/linux/generic/thread.cpp

(limited to 'lib/mlibc/sysdeps/linux/generic/thread.cpp')

diff --git a/lib/mlibc/sysdeps/linux/generic/thread.cpp b/lib/mlibc/sysdeps/linux/generic/thread.cpp
deleted file mode 100644
index e413e4f..0000000
--- a/lib/mlibc/sysdeps/linux/generic/thread.cpp
+++ /dev/null
@@ -1,60 +0,0 @@
-#include <mlibc/thread-entry.hpp>
-#include <mlibc/all-sysdeps.hpp>
-#include <mlibc/thread.hpp>
-#include <bits/ensure.h>
-#include <sys/mman.h>
-#include <stdint.h>
-#include <stddef.h>
-#include <errno.h>
-
-extern "C" void __mlibc_enter_thread(void *entry, void *user_arg) {
-	// The linux kernel already sets the TCB in sys_clone().
-	auto tcb = mlibc::get_current_tcb();
-
-	// Wait until our parent sets up the TID.
-	while(!__atomic_load_n(&tcb->tid, __ATOMIC_RELAXED))
-		mlibc::sys_futex_wait(&tcb->tid, 0, nullptr);
-
-	tcb->invokeThreadFunc(entry, user_arg);
-
-	__atomic_store_n(&tcb->didExit, 1, __ATOMIC_RELEASE);
-	mlibc::sys_futex_wake(&tcb->didExit);
-
-	mlibc::sys_thread_exit();
-}
-
-namespace mlibc {
-
-static constexpr size_t default_stacksize = 0x200000;
-
-int sys_prepare_stack(void **stack, void *entry, void *user_arg, void *tcb, size_t *stack_size, size_t *guard_size, void **stack_base) {
-	(void)tcb;
-	if (!*stack_size)
-		*stack_size = default_stacksize;
-
-	uintptr_t map;
-	if (*stack) {
-		map = reinterpret_cast<uintptr_t>(*stack);
-		*guard_size = 0;
-	} else {
-		map = reinterpret_cast<uintptr_t>(
-				mmap(nullptr, *stack_size + *guard_size,
-					PROT_NONE,
-					MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)
-				);
-		if (reinterpret_cast<void*>(map) == MAP_FAILED)
-			return EAGAIN;
-		int ret = mprotect(reinterpret_cast<void*>(map + *guard_size), *stack_size,
-				PROT_READ | PROT_WRITE);
-		if(ret)
-			return EAGAIN;
-	}
-
-	*stack_base = reinterpret_cast<void*>(map);
-	auto sp = reinterpret_cast<uintptr_t*>(map + *guard_size + *stack_size);
-	*--sp = reinterpret_cast<uintptr_t>(user_arg);
-	*--sp = reinterpret_cast<uintptr_t>(entry);
-	*stack = reinterpret_cast<void*>(sp);
-	return 0;
-}
-} // namespace mlibc
-- 
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