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Code Issues Releases Activity

Process: Protect TLS region and Modules.

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This commit is contained in:
Fernando Sahmkow 2020-03-03 11:04:37 -04:00
parent 2a8837ff51
commit de5b521c09
1 changed files with 4 additions and 0 deletions
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4
src/core/hle/kernel/process.cpp
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@ -22,6 +22,7 @@
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/scheduler.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/lock.h"
#include "core/memory.h"
#include "core/settings.h"
@ -345,6 +346,7 @@ static auto FindTLSPageWithAvailableSlots(std::vector<TLSPage>& tls_pages) {
}
VAddr Process::CreateTLSRegion() {
SchedulerLock lock(system.Kernel());
if (auto tls_page_iter{FindTLSPageWithAvailableSlots(tls_pages)};
tls_page_iter != tls_pages.cend()) {
return *tls_page_iter->ReserveSlot();
@ -375,6 +377,7 @@ VAddr Process::CreateTLSRegion() {
}
void Process::FreeTLSRegion(VAddr tls_address) {
SchedulerLock lock(system.Kernel());
const VAddr aligned_address = Common::AlignDown(tls_address, Core::Memory::PAGE_SIZE);
auto iter =
std::find_if(tls_pages.begin(), tls_pages.end(), [aligned_address](const auto& page) {
@ -389,6 +392,7 @@ void Process::FreeTLSRegion(VAddr tls_address) {
}
void Process::LoadModule(CodeSet code_set, VAddr base_addr) {
std::lock_guard lock{HLE::g_hle_lock};
const auto ReprotectSegment = [&](const CodeSet::Segment& segment,
Memory::MemoryPermission permission) {
page_table->SetCodeMemoryPermission(segment.addr + base_addr, segment.size, permission);