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Implementation for userspace interpreter

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This commit is contained in:
Alex
2023-03-31 17:36:34 +03:00
parent 8747a54fea
commit f69f29c5bb
4 changed files with 147 additions and 29 deletions
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84
SystemCalls/Native.cpp
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@@ -1,6 +1,7 @@
#include <syscalls.hpp>
#include <memory.hpp>
#include <lock.hpp>
#include <exec.hpp>
#include <debug.h>
@@ -53,9 +54,12 @@ static int sys_print(SyscallsFrame *Frame, char Char, int Index)
return SYSCALL_ACCESS_DENIED;
char ret = Display->Print(Char, Index, true);
#ifdef DEBUG
if (!Config.BootAnimation && Index == 0)
#ifdef DEBUG
Display->SetBuffer(Index);
#else
if (Char == '\n')
Display->SetBuffer(Index);
#endif
UNUSED(Frame);
return ret;
@@ -106,6 +110,84 @@ static uintptr_t sys_kernelctl(SyscallsFrame *Frame, enum KCtl Command, uint64_t
return PAGE_SIZE;
case KCTL_IS_CRITICAL:
return TaskManager->GetCurrentThread()->Security.IsCritical;
case KCTL_REGISTER_ELF_LIB:
{
char *Identifier = (char *)Arg1;
const char *Path = (const char *)Arg2;
if (!Identifier || !Path)
return SYSCALL_INVALID_ARGUMENT;
std::string FullPath = Path;
int retries = 0;
RetryReadPath:
debug("KCTL_REGISTER_ELF_LIB: Trying to open %s", FullPath.c_str());
std::shared_ptr<VirtualFileSystem::File> f = vfs->Open(FullPath.c_str());
if (f->Status != VirtualFileSystem::FileStatus::OK)
{
FullPath.clear();
switch (retries)
{
case 0:
FullPath = "/system/lib/";
break;
case 1:
FullPath = "/system/lib64/";
break;
case 2:
FullPath = "/system/";
break;
case 3:
{
// TODO: Check process binary path
break;
}
default:
{
vfs->Close(f);
return SYSCALL_INVALID_ARGUMENT;
}
}
FullPath += Path;
vfs->Close(f);
retries++;
goto RetryReadPath;
}
vfs->Close(f);
if (Execute::AddLibrary(Identifier, (void *)f->node->Address, f->node->Length))
return SYSCALL_OK;
else
return SYSCALL_INTERNAL_ERROR;
}
case KCTL_GET_ELF_LIB_FILE:
{
char *Identifier = (char *)Arg1;
if (!Identifier)
return 0;
Execute::SharedLibraries lib = Execute::GetLibrary(Identifier);
if (!lib.Address)
debug("Failed to get library address %#lx", (uintptr_t)lib.Address);
debug("Returning library address %#lx", (uintptr_t)lib.Address);
return (uintptr_t)lib.Address;
}
case KCTL_GET_ELF_LIB_MEMORY_IMAGE:
{
char *Identifier = (char *)Arg1;
if (!Identifier)
return 0;
Execute::SharedLibraries lib = Execute::GetLibrary(Identifier);
if (!lib.MemoryImage)
debug("Failed to get library memory image %#lx", (uintptr_t)lib.MemoryImage);
debug("Returning memory image %#lx", (uintptr_t)lib.MemoryImage);
return (uintptr_t)lib.MemoryImage;
}
default:
{
warn("KernelCTL: Unknown command: %lld", Command);