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Greatly improve /proc/PID/stack by tracing the ebp frame chain.

I also added a generator cache to FileHandle. This way, multiple
reads to a generated file (i.e in a synthfs) can transparently
handle multiple calls to read() without the contents changing
between calls.

The cache is discarded at EOF (or when the FileHandle is destroyed.)
This commit is contained in:
Andreas Kling 2018-10-27 00:14:24 +02:00
parent c928b06218
commit 2716a9e2d7
22 changed files with 210 additions and 116 deletions

View file

@ -122,9 +122,13 @@ public:
size_t fileHandleCount() const { return m_fileHandles.size(); }
dword framePtr() const { return m_tss.ebp; }
dword stackPtr() const { return m_tss.esp; }
dword stackTop() const { return m_tss.ss == 0x10 ? m_stackTop0 : m_stackTop3; }
bool isValidAddressForKernel(LinearAddress) const;
bool isValidAddressForUser(LinearAddress) const;
private:
friend class MemoryManager;
friend bool scheduleNewTask();