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/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
#include <AK/Types.h>
#include <LibC/sys/arch/i386/regs.h>
namespace ELF::Core {
struct [[gnu::packed]] NotesEntryHeader {
enum Type : u8 {
Null = 0, // Terminates segment
ProcessInfo,
ThreadInfo,
MemoryRegionInfo,
Metadata,
};
Type type;
};
struct [[gnu::packed]] NotesEntry {
NotesEntryHeader header;
char data[];
};
struct [[gnu::packed]] ProcessInfo {
NotesEntryHeader header;
// Information is stored as JSON blob to allow arbitrary
// number and length of strings/objects/arrays.
//
// Keys:
// - "pid" (int)
// - "termination_signal" (u8)
// - "executable_path" (String)
// - "arguments" (Vector<String>)
// - "environment" (Vector<String>)
char json_data[]; // Null terminated
};
struct [[gnu::packed]] ThreadInfo {
NotesEntryHeader header;
int tid;
PtraceRegisters regs;
};
struct [[gnu::packed]] MemoryRegionInfo {
NotesEntryHeader header;
uint64_t region_start;
uint64_t region_end;
uint16_t program_header_index;
char region_name[]; // Null terminated
String object_name() const
{
StringView memory_region_name { region_name };
if (memory_region_name.contains("Loader.so"))
return "Loader.so";
auto maybe_colon_index = memory_region_name.find(':');
if (!maybe_colon_index.has_value())
return {};
return memory_region_name.substring_view(0, *maybe_colon_index).to_string();
}
};
struct [[gnu::packed]] Metadata {
NotesEntryHeader header;
// Arbitrary metadata, set via SC_set_coredump_metadata.
// Limited to 16 entries and 16 KiB keys/values by the kernel.
//
// Well-known keys:
// - "assertion": Used by LibC's __assertion_failed() to store assertion info
// - "pledge_violation": Used by the Kernel's REQUIRE_PROMISE() to store pledge violation info
char json_data[]; // Null terminated
};
}
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