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LibELF: Add find_demangled_function

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Also, added AK::String::index_of and fixed a bug in ELF::Loader::symbol_ptr
This commit is contained in:
Itamar 2020-04-13 19:23:19 +03:00 • committed by Andreas Kling
parent 34f0d98e67
commit e207de8449
7 changed files with 71 additions and 24 deletions
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27
Applications/Debugger/main.cpp
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@ -27,6 +27,7 @@
#include "DebugSession.h"
#include <AK/Assertions.h>
#include <AK/ByteBuffer.h>
#include <AK/Demangle.h>
#include <AK/LogStream.h>
#include <AK/StringBuilder.h>
#include <AK/kmalloc.h>
@ -137,14 +138,28 @@ bool handle_breakpoint_command(const String& command)
if (parts.size() != 2)
return false;
u32 breakpoint_address = strtoul(parts[1].characters(), nullptr, 16);
if (errno != 0)
auto argument = parts[1];
if (argument.is_empty())
return false;
u32 breakpoint_address = 0;
if ((argument[0] >= '0' && argument[0] <= '9')) {
breakpoint_address = strtoul(argument.characters(), nullptr, 16);
} else {
auto symbol = g_debug_session->elf().find_demangled_function(argument);
if (!symbol.has_value()) {
printf("symbol %s not found\n", parts[1].characters());
return false;
}
breakpoint_address = reinterpret_cast<u32>(symbol.value().value());
}
bool success = g_debug_session->insert_breakpoint(reinterpret_cast<void*>(breakpoint_address));
if (!success) {
fprintf(stderr, "coult not insert breakpoint at: 0x%x\n", breakpoint_address);
fprintf(stderr, "coult not insert breakpoint at: %08x\n", breakpoint_address);
return false;
}
printf("breakpoint insterted at: %08x\n", breakpoint_address);
return true;
}
@ -153,8 +168,8 @@ void print_help()
printf("Options:\n"
"cont - Continue execution\n"
"regs - Print registers\n"
"dis <number of instructions> - Print disassembly\n"
"bp <address> - Insert a breakpoint\n");
"dis [number of instructions] - Print disassembly\n"
"bp <address/symbol> - Insert a breakpoint\n");
}
int main(int argc, char** argv)
@ -185,7 +200,7 @@ int main(int argc, char** argv)
sa.sa_handler = handle_sigint;
sigaction(SIGINT, &sa, nullptr);
bool rc = g_debug_session->insert_breakpoint(g_debug_session->get_entry_point().as_ptr());
bool rc = g_debug_session->insert_breakpoint(g_debug_session->elf().entry().as_ptr());
ASSERT(rc);
g_debug_session->run([&](DebugSession::DebugBreakReason reason, Optional<PtraceRegisters> optional_regs) {