catto
/
shadPS4
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

''

This commit is contained in:
Antonio 2024-08-08 18:03:22 -04:00
parent 61c4096ae1
commit e1e8927823
1 changed files with 23 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
src/core/address_space.cpp
View File

@ -217,32 +217,32 @@ struct AddressSpace::Impl {
} }
void Protect(VAddr virtual_addr, size_t size, bool read, bool write, bool execute) { void Protect(VAddr virtual_addr, size_t size, bool read, bool write, bool execute) {
DWORD new_flags{}; DWORD new_flags{};
if (read && write && execute) { if (read && write && execute) {
new_flags = PAGE_EXECUTE_READWRITE; new_flags = PAGE_EXECUTE_READWRITE;
} else if (read && write) { } else if (read && write) {
new_flags = PAGE_READWRITE; new_flags = PAGE_READWRITE;
} else if (read && !write) { } else if (read && !write) {
new_flags = PAGE_READONLY; new_flags = PAGE_READONLY;
} else if (execute && !read && !write) { } else if (execute && !read && !write) {
new_flags = PAGE_EXECUTE; new_flags = PAGE_EXECUTE;
} else if (!read && !write && !execute) { } else if (!read && !write && !execute) {
new_flags = PAGE_NOACCESS; new_flags = PAGE_NOACCESS;
} else { } else {
LOG_CRITICAL(Common_Memory, "Unsupported protection flag combination"); LOG_CRITICAL(Common_Memory, "Unsupported protection flag combination");
} }
const VAddr virtual_end = virtual_addr + size; const VAddr virtual_end = virtual_addr + size;
auto [it, end] = placeholders.equal_range({virtual_addr, virtual_end}); auto [it, end] = placeholders.equal_range({virtual_addr, virtual_end});
while (it != end) { while (it != end) {
const size_t offset = std::max(it->lower(), virtual_addr); const size_t offset = std::max(it->lower(), virtual_addr);
const size_t protect_length = std::min(it->upper(), virtual_end) - offset; const size_t protect_length = std::min(it->upper(), virtual_end) - offset;
DWORD old_flags{}; DWORD old_flags{};
if (!VirtualProtect(virtual_base + offset, protect_length, new_flags, &old_flags)) { if (!VirtualProtect(virtual_base + offset, protect_length, new_flags, &old_flags)) {
LOG_CRITICAL(Common_Memory, "Failed to change virtual memory protect rules"); LOG_CRITICAL(Common_Memory, "Failed to change virtual memory protect rules");
}
++it;
} }
++it;
}
} }