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This commit is contained in:
Alex 2022-11-07 01:42:32 +02:00
parent 2eb7e82a3e
commit 2ddfec2130
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
1 changed files with 6 additions and 4 deletions
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10
Tasking/Task.cpp
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@ -626,13 +626,15 @@ namespace Tasking
Thread->Registers.rflags.ID = 1;
Thread->Registers.rsp = ((uint64_t)Thread->Stack + STACK_SIZE);
/* We need to leave the libc's crt to make a syscall when the Thread is exited or we are going to get GPF or PF exception. */
for (uint64_t i = 0; i < TO_PAGES(STACK_SIZE); i++)
Memory::Virtual(Parent->PageTable).Map((void *)((uint64_t)Thread->Stack + (i * PAGE_SIZE)), (void *)((uint64_t)Thread->Stack + (i * PAGE_SIZE)), Memory::PTFlag::RW | Memory::PTFlag::US);
if (!Memory::Virtual(Parent->PageTable).Check((void *)Offset, Memory::PTFlag::US))
Memory::Virtual uva = Memory::Virtual(Parent->PageTable);
for (uint64_t i = 0; i < TO_PAGES(STACK_SIZE); i++)
uva.Map((void *)((uint64_t)Thread->Stack + (i * PAGE_SIZE)), (void *)((uint64_t)Thread->Stack + (i * PAGE_SIZE)), Memory::PTFlag::RW | Memory::PTFlag::US);
if (!uva.Check((void *)Offset, Memory::PTFlag::US))
{
error("Offset is not user accessible");
Memory::Virtual(Parent->PageTable).Map((void *)Offset, (void *)Offset, Memory::PTFlag::RW | Memory::PTFlag::US); // We try one more time.
uva.Map((void *)Offset, (void *)Offset, Memory::PTFlag::RW | Memory::PTFlag::US); // We try one more time.
}
#elif defined(__i386__)
#elif defined(__aarch64__)