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Debugger: Add DebugSession

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The DebugSession class wraps the usage of Ptrace.
It is intended to be used by cli & gui debugger programs.

Also, call objdump for disassemly
This commit is contained in:
Itamar 2020-04-10 17:35:49 +03:00 • committed by Andreas Kling
parent 50fd2cabff
commit 3e9a7175d1
10 changed files with 473 additions and 166 deletions
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4
Kernel/Process.cpp
View file

@ -4935,6 +4935,7 @@ bool Process::has_tracee_thread(int tracer_pid) const
KResultOr<u32> Process::peek_user_data(u32* address)
{
if (!MM.validate_user_read(*this, VirtualAddress(address), sizeof(u32))) {
dbg() << "Invalid address for peek_user_data: " << address;
return KResult(-EFAULT);
}
uint32_t result;
@ -4951,8 +4952,9 @@ KResultOr<u32> Process::peek_user_data(u32* address)
KResult Process::poke_user_data(u32* address, u32 data)
{
// We validate for read (rather than write) because PT_POKE can write to readonly pages.
// So we wffectively only care that the poke operation only writes to user pages
// So we effectively only care that the poke operation is trying to write to user pages.
if (!MM.validate_user_read(*this, VirtualAddress(address), sizeof(u32))) {
dbg() << "Invalid address for poke_user_data: " << address;
return KResult(-EFAULT);
}
ProcessPagingScope scope(*this);

1
Kernel/Process.h
View file

@ -39,6 +39,7 @@
#include <Kernel/Thread.h>
#include <Kernel/UnixTypes.h>
#include <Kernel/VM/RangeAllocator.h>
#include <LibBareMetal/StdLib.h>
#include <LibC/signal_numbers.h>
namespace ELF {

1
Kernel/ThreadTracer.h
View file

@ -46,6 +46,7 @@ public:
void set_trace_syscalls(bool val) { m_trace_syscalls = val; }
void set_regs(const RegisterState& regs);
void set_regs(const PtraceRegisters& regs) { m_regs = regs; }
bool has_regs() const { return m_regs.has_value(); }
const PtraceRegisters& regs() const
{

1
Kernel/build-root-filesystem.sh
View file

@ -146,7 +146,6 @@ cp ../Applications/Browser/Browser mnt/bin/Browser
cp ../Applications/Debugger/Debugger mnt/bin/sdb
cp ../Games/Solitaire/Solitaire mnt/bin/Solitaire
cp ../Demos/HelloWorld/HelloWorld mnt/bin/HelloWorld
cp ../Demos/Debugee/Debugee mnt/bin/Debugee
cp ../Demos/WidgetGallery/WidgetGallery mnt/bin/WidgetGallery
cp ../Demos/Fire/Fire mnt/bin/Fire
cp ../Demos/DynamicLink/LinkDemo/LinkDemo mnt/bin/LinkDemo