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| author | Andreas Kling <kling@serenityos.org> | 2021-02-08 19:34:41 +0100 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2021-02-08 19:34:41 +0100 |
| commit | f39c2b653e32ee8f05a4cfc285315cf980224054 (patch) | |
| tree | 5302b12ddfe7ddee7f9a4d95932a32d421fde566 /Kernel/Arch/i386/CPU.cpp | |
| parent | 45231051e62b82b3214c4bc2d0b3674cdd083d10 (diff) | |
| download | serenity-f39c2b653e32ee8f05a4cfc285315cf980224054.zip | |
Kernel: Reorganize ptrace implementation a bit
The generic parts of ptrace now live in Kernel/Syscalls/ptrace.cpp
and the i386 specific parts are moved to Arch/i386/CPU.cpp
Diffstat (limited to 'Kernel/Arch/i386/CPU.cpp')
| -rw-r--r-- | Kernel/Arch/i386/CPU.cpp | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Kernel/Arch/i386/CPU.cpp b/Kernel/Arch/i386/CPU.cpp index 798e946f22..59d80c2d2b 100644 --- a/Kernel/Arch/i386/CPU.cpp +++ b/Kernel/Arch/i386/CPU.cpp @@ -2264,6 +2264,40 @@ void Processor::set_thread_specific(u8* data, size_t len) descriptor.set_limit(len); } +void copy_kernel_registers_into_ptrace_registers(PtraceRegisters& ptrace_regs, const RegisterState& kernel_regs) +{ + ptrace_regs.eax = kernel_regs.eax, + ptrace_regs.ecx = kernel_regs.ecx, + ptrace_regs.edx = kernel_regs.edx, + ptrace_regs.ebx = kernel_regs.ebx, + ptrace_regs.esp = kernel_regs.userspace_esp, + ptrace_regs.ebp = kernel_regs.ebp, + ptrace_regs.esi = kernel_regs.esi, + ptrace_regs.edi = kernel_regs.edi, + ptrace_regs.eip = kernel_regs.eip, + ptrace_regs.eflags = kernel_regs.eflags, + ptrace_regs.cs = 0; + ptrace_regs.ss = 0; + ptrace_regs.ds = 0; + ptrace_regs.es = 0; + ptrace_regs.fs = 0; + ptrace_regs.gs = 0; +} + +void copy_ptrace_registers_into_kernel_registers(RegisterState& kernel_regs, const PtraceRegisters& ptrace_regs) +{ + kernel_regs.eax = ptrace_regs.eax; + kernel_regs.ecx = ptrace_regs.ecx; + kernel_regs.edx = ptrace_regs.edx; + kernel_regs.ebx = ptrace_regs.ebx; + kernel_regs.esp = ptrace_regs.esp; + kernel_regs.ebp = ptrace_regs.ebp; + kernel_regs.esi = ptrace_regs.esi; + kernel_regs.edi = ptrace_regs.edi; + kernel_regs.eip = ptrace_regs.eip; + kernel_regs.eflags = (kernel_regs.eflags & ~safe_eflags_mask) | (ptrace_regs.eflags & safe_eflags_mask); +} + } #ifdef DEBUG |