1 files changed, 81 insertions, 0 deletions
diff --git a/toolkit/crashreporter/mozannotation_server/src/errors.rs b/toolkit/crashreporter/mozannotation_server/src/errors.rs
new file mode 100644
index 0000000000..037d432e5e
--- /dev/null
+++ b/toolkit/crashreporter/mozannotation_server/src/errors.rs
@@ -0,0 +1,81 @@
+/* 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),
+}