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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
use thiserror::Error;
#[derive(Debug, Error)]
pub enum RetrievalError {
#[error("The process handle/PID was invalid")]
InvalidProcessHandle,
#[error("Could not find the address of the annotations vector")]
AnnotationTableNotFound(#[from] FindAnnotationsAddressError),
#[error("Corrupt or wrong annotation table")]
InvalidAnnotationTable,
#[error("The data read from the target process is invalid")]
InvalidData,
#[cfg(any(target_os = "linux", target_os = "android"))]
#[error("Could not attach to the target process")]
AttachError(#[from] PtraceError),
#[error("Could not read from the target process address space")]
ReadFromProcessError(#[from] ReadError),
#[error("waitpid() failed when attaching to the process")]
WaitPidError,
}
#[derive(Debug, Error)]
pub enum FindAnnotationsAddressError {
#[error("Could not convert address {0}")]
ConvertAddressError(#[from] std::num::TryFromIntError),
#[error("goblin failed to parse a module")]
GoblinError(#[from] goblin::error::Error),
#[error("Address was out of bounds")]
InvalidAddress,
#[error("IO error for file {0}")]
IOError(#[from] std::io::Error),
#[error("Could not find the address of the annotations vector")]
NotFound,
#[error("Could not parse address {0}")]
ParseAddressError(#[from] std::num::ParseIntError),
#[error("Could not parse a line in /proc/<pid>/maps")]
ProcMapsParseError,
#[cfg(any(target_os = "linux", target_os = "android"))]
#[error("Program header was not found")]
ProgramHeaderNotFound,
#[cfg(target_os = "windows")]
#[error("Section was not found")]
SectionNotFound,
#[cfg(target_os = "windows")]
#[error("Cannot enumerate the target process's modules")]
EnumProcessModulesError,
#[error("Could not read memory from the target process")]
ReadError(#[from] ReadError),
#[cfg(target_os = "macos")]
#[error("Failure when requesting the task information")]
TaskInfoError,
#[cfg(target_os = "macos")]
#[error("The task dyld information format is unknown or invalid")]
ImageFormatError,
}
#[derive(Debug, Error)]
pub enum ReadError {
#[cfg(any(target_os = "linux", target_os = "android"))]
#[error("ptrace-specific error")]
PtraceError(#[from] PtraceError),
#[cfg(target_os = "windows")]
#[error("ReadProcessMemory failed")]
ReadProcessMemoryError,
#[cfg(target_os = "macos")]
#[error("mach call failed")]
MachError,
}
#[cfg(any(target_os = "linux", target_os = "android"))]
#[derive(Debug, Error)]
pub enum PtraceError {
#[error("Could not read from the target process address space")]
ReadError(#[source] std::io::Error),
#[error("Could not trace the process")]
TraceError(#[source] std::io::Error),
}
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