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Debugger: Add 'examine' command

Browse source 
This command outputs the memory contents of a given address as an
unsigned int.

LibDebug already had support for this, so just a matter of intergating
it in sdb.

Very useful :)
This commit is contained in:
Itamar 2020-10-10 11:37:56 +03:00 committed by Andreas Kling
parent a8cfb83d08
commit 711c42e25e
Notes: sideshowbarker 2024-07-19 00:52:10 +09:00 
Author: https://github.com/itamar8910
Commit: https://github.com/SerenityOS/serenity/commit/711c42e25eb
Pull-request: https://github.com/SerenityOS/serenity/pull/3738
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/alimpfard
Reviewed-by: https://github.com/awesomekling
1 changed files with 27 additions and 1 deletions
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28
Applications/Debugger/main.cpp
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@ -148,6 +148,29 @@ static bool handle_breakpoint_command(const String& command)
return true;
}
static bool handle_examine_command(const String& command)
{
auto parts = command.split(' ');
if (parts.size() != 2)
return false;
auto argument = parts[1];
if (argument.is_empty())
return false;
if (!(argument.starts_with("0x"))) {
return false;
}
u32 address = strtoul(argument.characters() + 2, nullptr, 16);
auto res = g_debug_session->peek((u32*)address);
if (!res.has_value()) {
printf("could not examine memory at address 0x%x\n", address);
return true;
}
printf("0x%x\n", res.value());
return true;
}
static void print_help()
{
out("Options:\n"
@ -157,7 +180,8 @@ static void print_help()
"line - show the position of the current instruction in the source code\n"
"regs - Print registers\n"
"dis [number of instructions] - Print disassembly\n"
"bp <address/symbol/file:line> - Insert a breakpoint\n");
"bp <address/symbol/file:line> - Insert a breakpoint\n"
"x <address> - examine dword in memory\n");
}
int main(int argc, char** argv)
@ -263,6 +287,8 @@ int main(int argc, char** argv)
} else if (command.starts_with("bp")) {
success = handle_breakpoint_command(command);
} else if (command.starts_with("x")) {
success = handle_examine_command(command);
}
if (success && !command.is_empty()) {