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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/. */
extern crate minidump_writer;
use anyhow;
use libc::pid_t;
use minidump_writer::crash_context::CrashContext;
use minidump_writer::minidump_writer::MinidumpWriter;
use nsstring::nsCString;
use std::ffi::CStr;
use std::mem;
use std::os::raw::c_char;
// This structure will be exposed to C++
#[repr(C)]
#[derive(Clone)]
pub struct InternalCrashContext {
pub context: crash_context::ucontext_t,
#[cfg(not(target_arch = "arm"))]
pub float_state: crash_context::fpregset_t,
pub siginfo: libc::signalfd_siginfo,
pub pid: libc::pid_t,
pub tid: libc::pid_t,
}
// This function will be exposed to C++
#[no_mangle]
pub unsafe extern "C" fn write_minidump_linux(
dump_path: *const c_char,
child: pid_t,
child_blamed_thread: pid_t,
error_msg: &mut nsCString,
) -> bool {
assert!(!dump_path.is_null());
let c_path = CStr::from_ptr(dump_path);
let path = match c_path.to_str() {
Ok(s) => s,
Err(x) => {
error_msg.assign(&format!(
"Wrapper error. Path not convertable: {:#}",
anyhow::Error::new(x)
));
return false;
}
};
let mut dump_file = match std::fs::OpenOptions::new()
.create(true) // Create file if it doesn't exist
.write(true) // Truncate file
.open(path)
{
Ok(f) => f,
Err(x) => {
error_msg.assign(&format!(
"Wrapper error when opening minidump destination at {:?}: {:#}",
path,
anyhow::Error::new(x)
));
return false;
}
};
match MinidumpWriter::new(child, child_blamed_thread).dump(&mut dump_file) {
Ok(_) => {
return true;
}
Err(x) => {
error_msg.assign(&format!("{:#}", anyhow::Error::new(x)));
return false;
}
}
}
// This function will be exposed to C++
#[no_mangle]
pub unsafe extern "C" fn write_minidump_linux_with_context(
dump_path: *const c_char,
child: pid_t,
context: *const InternalCrashContext,
error_msg: &mut nsCString,
) -> bool {
assert!(!dump_path.is_null());
let c_path = CStr::from_ptr(dump_path);
assert!(!context.is_null());
let cc: CrashContext = mem::transmute_copy(&(*(context as *const CrashContext)));
let path = match c_path.to_str() {
Ok(s) => s,
Err(x) => {
error_msg.assign(&format!(
"Wrapper error. Path not convertable: {:#}",
anyhow::Error::new(x)
));
return false;
}
};
let mut dump_file = match std::fs::OpenOptions::new()
.create(true) // Create file if it doesn't exist
.write(true) // Truncate file
.open(path)
{
Ok(f) => f,
Err(x) => {
error_msg.assign(&format!(
"Wrapper error when opening minidump destination at {:?}: {:#}",
path,
anyhow::Error::new(x)
));
return false;
}
};
match MinidumpWriter::new(child, cc.inner.tid)
.set_crash_context(cc)
.dump(&mut dump_file)
{
Ok(_) => {
return true;
}
Err(x) => {
error_msg.assign(&format!("{:#}", anyhow::Error::new(x)));
return false;
}
}
}
|
