diff --git a/aya/scripts/gen-bindings.sh b/aya/scripts/gen-bindings.sh
deleted file mode 100755
index e5e037dd..00000000
--- a/aya/scripts/gen-bindings.sh
+++ /dev/null
@@ -1,137 +0,0 @@
-#!/usr/bin/env sh
-
-set -e
-
-LIBBPF_DIR=$1
-OUTPUT_DIR=$2
-
-if test -z "$LIBBPF_DIR"; then
-    echo "error: no libbpf dir provided"
-    exit 1
-fi
-
-if test -z "$OUTPUT_DIR"; then
-    echo "error: no output dir provided"
-    exit 1
-fi
-
-BPF_TYPES="\
-    bpf_cmd \
-    bpf_insn \
-    bpf_attr \
-    bpf_map_type \
-    bpf_prog_type \
-    bpf_attach_type
-    "
-
-BPF_VARS="\
-    BPF_PSEUDO_.*
-    BPF_ALU \
-    BPF_ALU64 \
-    BPF_LDX \
-    BPF_ST \
-    BPF_STX \
-    BPF_LD \
-    BPF_K \
-    BPF_DW \
-    BPF_W \
-    BPF_H \
-    BPF_B \
-    SO_ATTACH_BPF \
-    SO_DETACH_BPF
-    "
-
-BTF_TYPES="\
-    btf_header \
-    btf_ext_header \
-    btf_ext_info \
-    btf_ext_info_sec \
-    bpf_core_relo \
-    bpf_core_relo_kind \
-    btf_type \
-    btf_enum \
-    btf_array \
-    btf_member \
-    btf_param \
-    btf_var \
-    btf_var_secinfo
-    "
-
-BTF_VARS="\
-    BTF_KIND_.*
-    BTF_INT_.*
-    "
-
-PERF_TYPES="\
-    perf_event_attr \
-    perf_sw_ids \
-    perf_event_sample_format \
-    perf_event_mmap_page \
-    perf_event_header \
-    perf_type_id \
-    perf_event_type
-    "
-
-PERF_VARS="\
-    PERF_FLAG_.* \
-    PERF_EVENT_.*
-    "
-
-NETLINK_TYPES="\
-    ifinfomsg
-    "
-
-NETLINK_VARS="\
-    NLMSG_ALIGNTO \
-    IFLA_XDP_FD \
-    XDP_FLAGS_.*
-    "
-
-LINUX_TYPES="$BPF_TYPES $BTF_TYPES $PERF_TYPES $NETLINK_TYPES"
-LINUX_VARS="$BPF_VARS $BTF_VARS $PERF_VARS $NETLINK_VARS"
-
-bindgen $LIBBPF_DIR/src/libbpf_internal.h \
-    --no-layout-tests \
-    --default-enum-style moduleconsts \
-    $(for ty in $BTF_TYPES; do
-        echo --whitelist-type "$ty"
-    done) \
-    $(for var in $BTF_VARS; do
-        echo --whitelist-var "$var"
-    done) \
-    > $OUTPUT_DIR/btf_internal_bindings.rs
-
-KVER=5.10.0-051000
-
-bindgen aya/include/linux_wrapper.h \
-    --no-layout-tests \
-    --default-enum-style moduleconsts \
-    $(for ty in $LINUX_TYPES; do
-        echo --whitelist-type "$ty"
-    done) \
-    $(for var in $LINUX_VARS; do
-        echo --whitelist-var "$var"
-    done) \
-    -- \
-    -target x86_64 \
-    -I $LIBBPF_DIR/include/uapi \
-    -I $LIBBPF_DIR/include/ \
-    -I /usr/include/x86_64-linux-gnu \
-    > $OUTPUT_DIR/linux_bindings_x86_64.rs
-
-# requires libc6-dev-arm64-cross
-bindgen aya/include/linux_wrapper.h \
-    --no-layout-tests \
-    --default-enum-style moduleconsts \
-    $(for ty in $LINUX_TYPES; do
-        echo --whitelist-type "$ty"
-    done) \
-    $(for var in $LINUX_VARS; do
-        echo --whitelist-var "$var"
-    done) \
-    -- \
-    -target arm64 \
-    -I $LIBBPF_DIR/include/uapi \
-    -I $LIBBPF_DIR/include/ \
-    -I /usr/aarch64-linux-gnu/include \
-    > $OUTPUT_DIR/linux_bindings_aarch64.rs
\ No newline at end of file
diff --git a/aya/src/generated/btf_internal_bindings.rs b/aya/src/generated/btf_internal_bindings.rs
index 08dda04a..a22755cb 100644
--- a/aya/src/generated/btf_internal_bindings.rs
+++ b/aya/src/generated/btf_internal_bindings.rs
@@ -1,47 +1,10 @@
-/* automatically generated by rust-bindgen 0.55.1 */
+/* automatically generated by rust-bindgen 0.57.0 */
 
-#[repr(C)]
-#[derive(Default)]
-pub struct __IncompleteArrayField<T>(::std::marker::PhantomData<T>, [T; 0]);
-impl<T> __IncompleteArrayField<T> {
-    #[inline]
-    pub const fn new() -> Self {
-        __IncompleteArrayField(::std::marker::PhantomData, [])
-    }
-    #[inline]
-    pub fn as_ptr(&self) -> *const T {
-        self as *const _ as *const T
-    }
-    #[inline]
-    pub fn as_mut_ptr(&mut self) -> *mut T {
-        self as *mut _ as *mut T
-    }
-    #[inline]
-    pub unsafe fn as_slice(&self, len: usize) -> &[T] {
-        ::std::slice::from_raw_parts(self.as_ptr(), len)
-    }
-    #[inline]
-    pub unsafe fn as_mut_slice(&mut self, len: usize) -> &mut [T] {
-        ::std::slice::from_raw_parts_mut(self.as_mut_ptr(), len)
-    }
-}
-impl<T> ::std::fmt::Debug for __IncompleteArrayField<T> {
-    fn fmt(&self, fmt: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
-        fmt.write_str("__IncompleteArrayField")
-    }
-}
 pub type __u8 = ::std::os::raw::c_uchar;
 pub type __u16 = ::std::os::raw::c_ushort;
 pub type __u32 = ::std::os::raw::c_uint;
 #[repr(C)]
 #[derive(Debug, Copy, Clone)]
-pub struct btf_ext_info {
-    pub info: *mut ::std::os::raw::c_void,
-    pub rec_size: __u32,
-    pub len: __u32,
-}
-#[repr(C)]
-#[derive(Debug, Copy, Clone)]
 pub struct btf_ext_header {
     pub magic: __u16,
     pub version: __u8,
@@ -54,13 +17,6 @@ pub struct btf_ext_header {
     pub core_relo_off: __u32,
     pub core_relo_len: __u32,
 }
-#[repr(C)]
-#[derive(Debug)]
-pub struct btf_ext_info_sec {
-    pub sec_name_off: __u32,
-    pub num_info: __u32,
-    pub data: __IncompleteArrayField<__u8>,
-}
 pub mod bpf_core_relo_kind {
     pub type Type = ::std::os::raw::c_uint;
     pub const BPF_FIELD_BYTE_OFFSET: Type = 0;
diff --git a/aya/src/generated/linux_bindings_aarch64.rs b/aya/src/generated/linux_bindings_aarch64.rs
index 386d9ece..d3252d7c 100644
--- a/aya/src/generated/linux_bindings_aarch64.rs
+++ b/aya/src/generated/linux_bindings_aarch64.rs
@@ -1,18 +1,17 @@
-/* automatically generated by rust-bindgen 0.55.1 */
+/* automatically generated by rust-bindgen 0.57.0 */
 
 #[repr(C)]
 #[derive(Copy, Clone, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)]
-pub struct __BindgenBitfieldUnit<Storage, Align> {
+pub struct __BindgenBitfieldUnit<Storage> {
     storage: Storage,
-    align: [Align; 0],
 }
-impl<Storage, Align> __BindgenBitfieldUnit<Storage, Align> {
+impl<Storage> __BindgenBitfieldUnit<Storage> {
     #[inline]
     pub const fn new(storage: Storage) -> Self {
-        Self { storage, align: [] }
+        Self { storage }
     }
 }
-impl<Storage, Align> __BindgenBitfieldUnit<Storage, Align>
+impl<Storage> __BindgenBitfieldUnit<Storage>
 where
     Storage: AsRef<[u8]> + AsMut<[u8]>,
 {
@@ -141,7 +140,8 @@ pub type __u64 = ::std::os::raw::c_ulonglong;
 #[derive(Debug, Copy, Clone)]
 pub struct bpf_insn {
     pub code: __u8,
-    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 1usize], u8>,
+    pub _bitfield_align_1: [u8; 0],
+    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 1usize]>,
     pub off: __s16,
     pub imm: __s32,
 }
@@ -169,9 +169,8 @@ impl bpf_insn {
         }
     }
     #[inline]
-    pub fn new_bitfield_1(dst_reg: __u8, src_reg: __u8) -> __BindgenBitfieldUnit<[u8; 1usize], u8> {
-        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 1usize], u8> =
-            Default::default();
+    pub fn new_bitfield_1(dst_reg: __u8, src_reg: __u8) -> __BindgenBitfieldUnit<[u8; 1usize]> {
+        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 1usize]> = Default::default();
         __bindgen_bitfield_unit.set(0usize, 4u8, {
             let dst_reg: u8 = unsafe { ::std::mem::transmute(dst_reg) };
             dst_reg as u64
@@ -712,7 +711,8 @@ pub struct perf_event_attr {
     pub __bindgen_anon_1: perf_event_attr__bindgen_ty_1,
     pub sample_type: __u64,
     pub read_format: __u64,
-    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 8usize], u32>,
+    pub _bitfield_align_1: [u32; 0],
+    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 8usize]>,
     pub __bindgen_anon_2: perf_event_attr__bindgen_ty_2,
     pub bp_type: __u32,
     pub __bindgen_anon_3: perf_event_attr__bindgen_ty_3,
@@ -1159,9 +1159,8 @@ impl perf_event_attr {
         aux_output: __u64,
         cgroup: __u64,
         __reserved_1: __u64,
-    ) -> __BindgenBitfieldUnit<[u8; 8usize], u32> {
-        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 8usize], u32> =
-            Default::default();
+    ) -> __BindgenBitfieldUnit<[u8; 8usize]> {
+        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 8usize]> = Default::default();
         __bindgen_bitfield_unit.set(0usize, 1u8, {
             let disabled: u64 = unsafe { ::std::mem::transmute(disabled) };
             disabled as u64
@@ -1337,7 +1336,8 @@ pub union perf_event_mmap_page__bindgen_ty_1 {
 #[repr(align(8))]
 #[derive(Debug, Copy, Clone)]
 pub struct perf_event_mmap_page__bindgen_ty_1__bindgen_ty_1 {
-    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 8usize], u64>,
+    pub _bitfield_align_1: [u64; 0],
+    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 8usize]>,
 }
 impl perf_event_mmap_page__bindgen_ty_1__bindgen_ty_1 {
     #[inline]
@@ -1414,9 +1414,8 @@ impl perf_event_mmap_page__bindgen_ty_1__bindgen_ty_1 {
         cap_user_time: __u64,
         cap_user_time_zero: __u64,
         cap_____res: __u64,
-    ) -> __BindgenBitfieldUnit<[u8; 8usize], u64> {
-        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 8usize], u64> =
-            Default::default();
+    ) -> __BindgenBitfieldUnit<[u8; 8usize]> {
+        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 8usize]> = Default::default();
         __bindgen_bitfield_unit.set(0usize, 1u8, {
             let cap_bit0: u64 = unsafe { ::std::mem::transmute(cap_bit0) };
             cap_bit0 as u64
diff --git a/aya/src/generated/linux_bindings_x86_64.rs b/aya/src/generated/linux_bindings_x86_64.rs
index f7e26723..30e16b5e 100644
--- a/aya/src/generated/linux_bindings_x86_64.rs
+++ b/aya/src/generated/linux_bindings_x86_64.rs
@@ -1,18 +1,17 @@
-/* automatically generated by rust-bindgen 0.55.1 */
+/* automatically generated by rust-bindgen 0.57.0 */
 
 #[repr(C)]
 #[derive(Copy, Clone, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)]
-pub struct __BindgenBitfieldUnit<Storage, Align> {
+pub struct __BindgenBitfieldUnit<Storage> {
     storage: Storage,
-    align: [Align; 0],
 }
-impl<Storage, Align> __BindgenBitfieldUnit<Storage, Align> {
+impl<Storage> __BindgenBitfieldUnit<Storage> {
     #[inline]
     pub const fn new(storage: Storage) -> Self {
-        Self { storage, align: [] }
+        Self { storage }
     }
 }
-impl<Storage, Align> __BindgenBitfieldUnit<Storage, Align>
+impl<Storage> __BindgenBitfieldUnit<Storage>
 where
     Storage: AsRef<[u8]> + AsMut<[u8]>,
 {
@@ -141,7 +140,8 @@ pub type __u64 = ::std::os::raw::c_ulonglong;
 #[derive(Debug, Copy, Clone)]
 pub struct bpf_insn {
     pub code: __u8,
-    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 1usize], u8>,
+    pub _bitfield_align_1: [u8; 0],
+    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 1usize]>,
     pub off: __s16,
     pub imm: __s32,
 }
@@ -169,9 +169,8 @@ impl bpf_insn {
         }
     }
     #[inline]
-    pub fn new_bitfield_1(dst_reg: __u8, src_reg: __u8) -> __BindgenBitfieldUnit<[u8; 1usize], u8> {
-        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 1usize], u8> =
-            Default::default();
+    pub fn new_bitfield_1(dst_reg: __u8, src_reg: __u8) -> __BindgenBitfieldUnit<[u8; 1usize]> {
+        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 1usize]> = Default::default();
         __bindgen_bitfield_unit.set(0usize, 4u8, {
             let dst_reg: u8 = unsafe { ::std::mem::transmute(dst_reg) };
             dst_reg as u64
@@ -712,7 +711,8 @@ pub struct perf_event_attr {
     pub __bindgen_anon_1: perf_event_attr__bindgen_ty_1,
     pub sample_type: __u64,
     pub read_format: __u64,
-    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 8usize], u32>,
+    pub _bitfield_align_1: [u32; 0],
+    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 8usize]>,
     pub __bindgen_anon_2: perf_event_attr__bindgen_ty_2,
     pub bp_type: __u32,
     pub __bindgen_anon_3: perf_event_attr__bindgen_ty_3,
@@ -1159,9 +1159,8 @@ impl perf_event_attr {
         aux_output: __u64,
         cgroup: __u64,
         __reserved_1: __u64,
-    ) -> __BindgenBitfieldUnit<[u8; 8usize], u32> {
-        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 8usize], u32> =
-            Default::default();
+    ) -> __BindgenBitfieldUnit<[u8; 8usize]> {
+        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 8usize]> = Default::default();
         __bindgen_bitfield_unit.set(0usize, 1u8, {
             let disabled: u64 = unsafe { ::std::mem::transmute(disabled) };
             disabled as u64
@@ -1337,7 +1336,8 @@ pub union perf_event_mmap_page__bindgen_ty_1 {
 #[repr(align(8))]
 #[derive(Debug, Copy, Clone)]
 pub struct perf_event_mmap_page__bindgen_ty_1__bindgen_ty_1 {
-    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 8usize], u64>,
+    pub _bitfield_align_1: [u64; 0],
+    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 8usize]>,
 }
 impl perf_event_mmap_page__bindgen_ty_1__bindgen_ty_1 {
     #[inline]
@@ -1414,9 +1414,8 @@ impl perf_event_mmap_page__bindgen_ty_1__bindgen_ty_1 {
         cap_user_time: __u64,
         cap_user_time_zero: __u64,
         cap_____res: __u64,
-    ) -> __BindgenBitfieldUnit<[u8; 8usize], u64> {
-        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 8usize], u64> =
-            Default::default();
+    ) -> __BindgenBitfieldUnit<[u8; 8usize]> {
+        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 8usize]> = Default::default();
         __bindgen_bitfield_unit.set(0usize, 1u8, {
             let cap_bit0: u64 = unsafe { ::std::mem::transmute(cap_bit0) };
             cap_bit0 as u64
diff --git a/aya/src/obj/mod.rs b/aya/src/obj/mod.rs
index 1a628c2b..4bcb36bb 100644
--- a/aya/src/obj/mod.rs
+++ b/aya/src/obj/mod.rs
@@ -389,6 +389,7 @@ mod tests {
     fn fake_ins() -> bpf_insn {
         bpf_insn {
             code: 0,
+            _bitfield_align_1: [],
             _bitfield_1: bpf_insn::new_bitfield_1(0, 0),
             off: 0,
             imm: 0,