build: Build mlibc + add distclean target

Signed-off-by: Ian Moffett <ian@osmora.org>

3 files changed, 0 insertions, 122 deletions

diff --git a/lib/mlibc/options/internal/gcc/guard-abi.cpp b/lib/mlibc/options/internal/gcc/guard-abi.cpp
deleted file mode 100644
index 945582a..0000000
--- a/lib/mlibc/options/internal/gcc/guard-abi.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-
-#include <mlibc/debug.hpp>
-#include <mlibc/internal-sysdeps.hpp>
-
-namespace {
-
-// Itanium ABI static initialization guard.
-struct Guard {
-	// bit of the mutex member variable.
-	// indicates that the mutex is locked.
-	static constexpr int32_t locked = 1;
-
-	void lock() {
-		uint32_t v = 0;
-		if(__atomic_compare_exchange_n(&mutex, &v, Guard::locked, false,
-				__ATOMIC_ACQUIRE, __ATOMIC_RELAXED))
-			return;
-
-		mlibc::sys_libc_log("__cxa_guard_acquire contention");
-		__builtin_trap();
-	}
-
-	void unlock() {
-		__atomic_store_n(&mutex, 0, __ATOMIC_RELEASE);
-	}
-
-	// the first byte's meaning is fixed by the ABI.
-	// it indicates whether initialization has already been completed.
-	uint8_t complete;
-
-	// we use some of the remaining bytes to implement a mutex.
-	uint32_t mutex;
-};
-
-static_assert(sizeof(Guard) == sizeof(int64_t));
-
-} // namespace { }
-
-extern "C" [[ gnu::visibility("hidden") ]] void __cxa_pure_virtual() {
-	mlibc::panicLogger() << "mlibc: Pure virtual function called from IP "
-			<< (void *)__builtin_return_address(0) << frg::endlog;
-}
-
-extern "C" [[ gnu::visibility("hidden") ]] int __cxa_guard_acquire(int64_t *ptr) {
-	auto guard = reinterpret_cast<Guard *>(ptr);
-	guard->lock();
-	// relaxed ordering is sufficient because
-	// Guard::complete is only modified while the mutex is held.
-	if(__atomic_load_n(&guard->complete, __ATOMIC_RELAXED)) {
-		guard->unlock();
-		return 0;
-	}else{
-		return 1;
-	}
-}
-
-extern "C" [[ gnu::visibility("hidden") ]] void __cxa_guard_release(int64_t *ptr) {
-	auto guard = reinterpret_cast<Guard *>(ptr);
-	// do a store-release so that compiler generated code can skip calling
-	// __cxa_guard_acquire by doing a load-acquire on Guard::complete.
-	__atomic_store_n(&guard->complete, 1, __ATOMIC_RELEASE);
-	guard->unlock();
-}
-
diff --git a/lib/mlibc/options/internal/gcc/initfini.cpp b/lib/mlibc/options/internal/gcc/initfini.cpp
deleted file mode 100644
index b329f38..0000000
--- a/lib/mlibc/options/internal/gcc/initfini.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-
-#include <mlibc/internal-sysdeps.hpp>
-#include <mlibc/debug.hpp>
-
-typedef void (*InitPtr)();
-
-extern InitPtr __CTOR_LIST__ [[ gnu::visibility("hidden") ]];
-extern InitPtr __CTOR_END__ [[ gnu::visibility("hidden") ]];
-
-extern "C" [[ gnu::visibility("hidden") ]] void __mlibc_do_ctors() {
-	auto it = &__CTOR_LIST__;
-	while(it != &__CTOR_END__)
-		(*it++)();
-}
-
-extern "C" [[ gnu::visibility("hidden") ]] void __mlibc_do_dtors() {
-	mlibc::sys_libc_log("__mlibc_do_dtors() called");
-}
-
diff --git a/lib/mlibc/options/internal/gcc/stack_protector.cpp b/lib/mlibc/options/internal/gcc/stack_protector.cpp
deleted file mode 100644
index e5e50f0..0000000
--- a/lib/mlibc/options/internal/gcc/stack_protector.cpp
+++ /dev/null
@@ -1,31 +0,0 @@
-#include <stdint.h>
-#include <string.h>
-#include <mlibc/debug.hpp>
-#include <mlibc/stack_protector.hpp>
-
-uintptr_t __stack_chk_guard = 0;
-
-namespace mlibc {
-
-void initStackGuard(void *entropy) {
-	if(entropy != nullptr) {
-		memcpy(&__stack_chk_guard, entropy, sizeof(__stack_chk_guard));
-	} else {
-		// If no entropy is available, set it to the terminator canary
-		__stack_chk_guard = 0;
-		__stack_chk_guard |= ('\n' << 16);
-		__stack_chk_guard |= (255 << 24);
-	}
-}
-
-} // namespace mlibc
-
-extern "C" [[noreturn]] void __stack_chk_fail() {
-	mlibc::panicLogger() << "Stack smashing detected!" << frg::endlog;
-	__builtin_unreachable();
-}
-
-extern "C" [[noreturn, gnu::visibility("hidden")]] void __stack_chk_fail_local() {
-	__stack_chk_fail();
-};
-