os: implement MemoryHeapManager, SetMemoryAttribute

2022-06-10 22:35:57 -07:00
parent 4e112de223
commit a65b6df8d2
26 changed files with 1120 additions and 13 deletions
--- a/libraries/libstratosphere/source/os/impl/os_vamm_manager_impl.os.linux.hpp
+++ b/libraries/libstratosphere/source/os/impl/os_vamm_manager_impl.os.linux.hpp
@@ -37,7 +37,8 @@ namespace ams::os::impl {
            }

            static Result FreePhysicalMemoryImpl(uintptr_t address, size_t size) {
-                R_UNLESS(::mprotect(reinterpret_cast<void *>(address), size, PROT_NONE) == 0, os::ResultBusy());
+                const auto reserved = ::mmap(reinterpret_cast<void *>(address), size, PROT_NONE, MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+                R_UNLESS(reserved != MAP_FAILED, os::ResultBusy());
                R_SUCCEED();
            }