beenull/ladybird
1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-09-30 00:31:14 +00:00
Code Issues Actions 5 Packages Projects Releases Wiki Activity

Debugger: Compile on x86_64

Browse source 
This is not guaranteed to work at all
This commit is contained in:
Hendiadyoin1 2021-06-30 15:28:33 +02:00 committed by Andreas Kling
parent 59eea93d2a
commit 8e575d2f62
Notes: sideshowbarker 2024-07-18 11:12:01 +09:00 
Author: https://github.com/Hendiadyoin1
Commit: https://github.com/SerenityOS/serenity/commit/8e575d2f627
Pull-request: https://github.com/SerenityOS/serenity/pull/8337
Reviewed-by: https://github.com/gunnarbeutner
2 changed files with 21 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
Userland/Applications/Debugger/main.cpp
View file

@ -38,9 +38,15 @@ static void handle_sigint(int)
static void handle_print_registers(const PtraceRegisters& regs)
{
#if ARCH(I386)
outln("eax={:08x} ebx={:08x} ecx={:08x} edx={:08x}", regs.eax, regs.ebx, regs.ecx, regs.edx);
outln("esp={:08x} ebp={:08x} esi={:08x} edi={:08x}", regs.esp, regs.ebp, regs.esi, regs.edi);
outln("eip={:08x} eflags={:08x}", regs.eip, regs.eflags);
#else
outln("rax={:016x} rbx={:016x} rcx={:016x} rdx={:016x}", regs.rax, regs.rbx, regs.rcx, regs.rdx);
outln("rsp={:016x} rbp={:016x} rsi={:016x} rdi={:016x}", regs.rsp, regs.rbp, regs.rsi, regs.rdi);
outln("rip={:016x} rflags={:08x}", regs.rip, regs.rflags);
#endif
}
static bool handle_disassemble_command(const String& command, void* first_instruction)
@ -174,7 +180,7 @@ static bool handle_examine_command(const String& command)
if (!(argument.starts_with("0x"))) {
return false;
}
u32 address = strtoul(argument.characters() + 2, nullptr, 16);
FlatPtr address = strtoul(argument.characters() + 2, nullptr, 16);
auto res = g_debug_session->peek((u32*)address);
if (!res.has_value()) {
outln("Could not examine memory at address {:p}", address);
@ -237,10 +243,15 @@ int main(int argc, char** argv)
VERIFY(optional_regs.has_value());
const PtraceRegisters& regs = optional_regs.value();
#if ARCH(I686)
const FlatPtr ip = regs.eip;
#else
const FlatPtr ip = regs.rip;
#endif
auto symbol_at_ip = g_debug_session->symbolicate(regs.eip);
auto symbol_at_ip = g_debug_session->symbolicate(ip);
auto source_position = g_debug_session->get_source_position(regs.eip);
auto source_position = g_debug_session->get_source_position(ip);
if (in_step_line) {
bool no_source_info = !source_position.has_value();
@ -254,9 +265,9 @@ int main(int argc, char** argv)
}
if (symbol_at_ip.has_value())
outln("Program is stopped at: {:p} ({}:{})", regs.eip, symbol_at_ip.value().library_name, symbol_at_ip.value().symbol);
outln("Program is stopped at: {:p} ({}:{})", ip, symbol_at_ip.value().library_name, symbol_at_ip.value().symbol);
else
outln("Program is stopped at: {:p}", regs.eip);
outln("Program is stopped at: {:p}", ip);
if (source_position.has_value()) {
previous_source_position = source_position.value();
@ -298,7 +309,7 @@ int main(int argc, char** argv)
success = true;
} else if (command.starts_with("dis")) {
success = handle_disassemble_command(command, reinterpret_cast<void*>(regs.eip));
success = handle_disassemble_command(command, reinterpret_cast<void*>(ip));
} else if (command.starts_with("bp")) {
success = handle_breakpoint_command(command);

8
Userland/Libraries/LibX86/Instruction.h
View file

@ -278,20 +278,20 @@ enum MMXRegisterIndex {
class LogicalAddress {
public:
LogicalAddress() { }
LogicalAddress(u16 selector, u32 offset)
LogicalAddress(u16 selector, FlatPtr offset)
: m_selector(selector)
, m_offset(offset)
{
}
u16 selector() const { return m_selector; }
u32 offset() const { return m_offset; }
FlatPtr offset() const { return m_offset; }
void set_selector(u16 selector) { m_selector = selector; }
void set_offset(u32 offset) { m_offset = offset; }
void set_offset(FlatPtr offset) { m_offset = offset; }
private:
u16 m_selector { 0 };
u32 m_offset { 0 };
FlatPtr m_offset { 0 };
};
class InstructionStream {