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Kernel: Remove /proc/PID/regs

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There isn't an easy way to retreive all register contents anymore,
so remove this functionality. We do have the ability to trace
processes, so it shouldn't really be needed anymore.
This commit is contained in:
Tom
2020-07-03 12:20:15 -06:00
committed by Andreas Kling
parent bb84fad0bf
commit 0f2530524e
1 changed files with 0 additions and 28 deletions
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28
Kernel/FileSystem/ProcFS.cpp
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@@ -110,7 +110,6 @@ enum ProcFileType {
FI_PID_vm,
FI_PID_vmobjects,
FI_PID_stack,
FI_PID_regs,
FI_PID_fds,
FI_PID_unveil,
FI_PID_exe, // symlink
@@ -621,32 +620,6 @@ Optional<KBuffer> procfs$pid_stack(InodeIdentifier identifier)
return process.backtrace(*handle);
}
Optional<KBuffer> procfs$pid_regs(InodeIdentifier identifier)
{
auto handle = ProcessInspectionHandle::from_pid(to_pid(identifier));
if (!handle)
return {};
auto& process = handle->process();
KBufferBuilder builder;
process.for_each_thread([&](Thread& thread) {
builder.appendf("Thread %d:\n", thread.tid());
auto& tss = thread.tss();
builder.appendf("eax: %x\n", tss.eax);
builder.appendf("ebx: %x\n", tss.ebx);
builder.appendf("ecx: %x\n", tss.ecx);
builder.appendf("edx: %x\n", tss.edx);
builder.appendf("esi: %x\n", tss.esi);
builder.appendf("edi: %x\n", tss.edi);
builder.appendf("ebp: %x\n", tss.ebp);
builder.appendf("cr3: %x\n", tss.cr3);
builder.appendf("flg: %x\n", tss.eflags);
builder.appendf("sp: %w:%x\n", tss.ss, tss.esp);
builder.appendf("pc: %w:%x\n", tss.cs, tss.eip);
return IterationDecision::Continue;
});
return builder.build();
}
Optional<KBuffer> procfs$pid_exe(InodeIdentifier identifier)
{
auto handle = ProcessInspectionHandle::from_pid(to_pid(identifier));
@@ -1610,7 +1583,6 @@ ProcFS::ProcFS()
m_entries[FI_PID_vm] = { "vm", FI_PID_vm, false, procfs$pid_vm };
m_entries[FI_PID_vmobjects] = { "vmobjects", FI_PID_vmobjects, true, procfs$pid_vmobjects };
m_entries[FI_PID_stack] = { "stack", FI_PID_stack, false, procfs$pid_stack };
m_entries[FI_PID_regs] = { "regs", FI_PID_regs, true, procfs$pid_regs };
m_entries[FI_PID_fds] = { "fds", FI_PID_fds, false, procfs$pid_fds };
m_entries[FI_PID_exe] = { "exe", FI_PID_exe, false, procfs$pid_exe };
m_entries[FI_PID_cwd] = { "cwd", FI_PID_cwd, false, procfs$pid_cwd };