fix: replaced custom type defintions with proper libc types

aya/src/maps/mod.rs

@@ -65,11 +65,6 @@ pub use sock::{SockHash, SockMap};
 pub use stack::Stack;
 pub use stack_trace::StackTraceMap;
 
-#[cfg(target_pointer_width = "32")]
-type CodeType = i32;
-#[cfg(target_pointer_width = "64")]
-type CodeType = i64;
-
 #[derive(Error, Debug)]
 pub enum MapError {
     #[error("map `{name}` not found ")]
@@ -90,7 +85,7 @@ pub enum MapError {
     #[error("failed to create map `{name}`: {code}")]
     CreateError {
         name: String,
-        code: CodeType,
+        code: libc::c_long,
         io_error: io::Error,
     },
 
@@ -115,7 +110,7 @@ pub enum MapError {
     #[error("the `{call}` syscall failed with code {code} io_error {io_error}")]
     SyscallError {
         call: String,
-        code: CodeType,
+        code: libc::c_long,
         io_error: io::Error,
     },
 

aya/src/maps/perf/perf_buffer.rs

@@ -273,11 +273,6 @@ impl Drop for PerfBuffer {
     }
 }
 
-#[cfg(target_pointer_width = "32")]
-type OffsetType = i32;
-#[cfg(target_pointer_width = "64")]
-type OffsetType = i64;
-
 #[cfg_attr(test, allow(unused_variables))]
 unsafe fn mmap(
     addr: *mut c_void,
@@ -285,7 +280,7 @@ unsafe fn mmap(
     prot: c_int,
     flags: c_int,
     fd: i32,
-    offset: OffsetType,
+    offset: libc::off_t,
 ) -> *mut c_void {
     #[cfg(not(test))]
     return libc::mmap(addr, len, prot, flags, fd, offset);

aya/src/sys/mod.rs

@@ -49,11 +49,6 @@ fn syscall(call: Syscall) -> SysResult {
     return TEST_SYSCALL.with(|test_impl| unsafe { test_impl.borrow()(call) });
 }
 
-#[cfg(target_pointer_width = "32")]
-type RetType = i32;
-#[cfg(target_pointer_width = "64")]
-type RetType = i64;
-
 #[cfg(not(test))]
 unsafe fn syscall_impl(call: Syscall) -> SysResult {
     use libc::{SYS_bpf, SYS_perf_event_open};
@@ -69,7 +64,7 @@ unsafe fn syscall_impl(call: Syscall) -> SysResult {
             flags,
         } => libc::syscall(SYS_perf_event_open, &attr, pid, cpu, group, flags),
         PerfEventIoctl { fd, request, arg } => {
-            libc::ioctl(fd, request.try_into().unwrap(), arg) as RetType
+            libc::ioctl(fd, request.try_into().unwrap(), arg) as libc::c_long
         }
     };