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[kernel] Split loading from scheduler

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In preparation for moving things to the init process, move process
loading out of the scheduler. memory_bootstrap now has a
load_simple_process function for mapping an args::program into memory,
and the stack setup has been simplified (though all the initv values are
still being added by the kernel - this needs rework) and normalized to
use the thread::add_thunk_user code path.
This commit is contained in:
Justin C. Miller
2021-01-28 01:30:17 -08:00
parent 35d8d2ab2d
commit 3aa909b917
12 changed files with 163 additions and 179 deletions
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9
src/kernel/objects/thread.h
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@@ -137,9 +137,12 @@ public:
/// \arg rip The address to return to, must be kernel space
void add_thunk_kernel(uintptr_t rip);
/// Add a stack header that returns to the given address in user space.
/// \arg rip The address to return to, must be user space
void add_thunk_user(uintptr_t rip);
/// Add a stack header that returns to the given address in user space
/// via a function in kernel space.
/// \arg rip3 The user space address to return to
/// \arg rip0 The kernel function to pass through, optional
/// \arg flags Extra RFLAGS values to set, optional
void add_thunk_user(uintptr_t rip3, uintptr_t rip0 = 0, uint64_t flags = 0);
/// Get the handle representing this thread to its process
j6_handle_t self_handle() const { return m_self_handle; }