diff --git a/android/virtmgr/Android.bp b/android/virtmgr/Android.bp
index ad63995..c2d67cf 100644
--- a/android/virtmgr/Android.bp
+++ b/android/virtmgr/Android.bp
@@ -38,7 +38,6 @@
         "libcfg_if",
         "libclap",
         "libcrosvm_control_static",
-        "libcstr",
         "libcommand_fds",
         "libdisk",
         "libglob",
diff --git a/android/virtmgr/src/aidl.rs b/android/virtmgr/src/aidl.rs
index c71b5c5..5ad7ee1 100644
--- a/android/virtmgr/src/aidl.rs
+++ b/android/virtmgr/src/aidl.rs
@@ -68,7 +68,6 @@
     self, wait_for_interface, Accessor, BinderFeatures, ConnectionInfo, ExceptionCode, Interface, ParcelFileDescriptor,
     SpIBinder, Status, StatusCode, Strong, IntoBinderResult,
 };
-use cstr::cstr;
 use glob::glob;
 use libc::{AF_VSOCK, sa_family_t, sockaddr_vm};
 use log::{debug, error, info, warn};
@@ -976,7 +975,7 @@
             "Passing vendor hashtree digest to pvmfw. This will be rejected if it doesn't \
                 match the trusted digest in the pvmfw config, causing the VM to fail to start."
         );
-        vec![(cstr!("vendor_hashtree_descriptor_root_digest"), vendor_hashtree_digest.as_slice())]
+        vec![(c"vendor_hashtree_descriptor_root_digest", vendor_hashtree_digest.as_slice())]
     } else {
         vec![]
     };
@@ -984,18 +983,18 @@
     let key_material;
     let mut untrusted_props = Vec::with_capacity(2);
     if cfg!(llpvm_changes) {
-        untrusted_props.push((cstr!("instance-id"), &instance_id[..]));
+        untrusted_props.push((c"instance-id", &instance_id[..]));
         let want_updatable = extract_want_updatable(config);
         if want_updatable && is_secretkeeper_supported() {
             // Let guest know that it can defer rollback protection to Secretkeeper by setting
             // an empty property in untrusted node in DT. This enables Updatable VMs.
-            untrusted_props.push((cstr!("defer-rollback-protection"), &[]));
+            untrusted_props.push((c"defer-rollback-protection", &[]));
             let sk: Strong<dyn ISecretkeeper> =
                 binder::wait_for_interface(SECRETKEEPER_IDENTIFIER)?;
             if sk.getInterfaceVersion()? >= 2 {
                 let PublicKey { keyMaterial } = sk.getSecretkeeperIdentity()?;
                 key_material = keyMaterial;
-                trusted_props.push((cstr!("secretkeeper_public_key"), key_material.as_slice()));
+                trusted_props.push((c"secretkeeper_public_key", key_material.as_slice()));
             }
         }
     }
diff --git a/android/virtmgr/src/dt_overlay.rs b/android/virtmgr/src/dt_overlay.rs
index 108ed61..fe2a419 100644
--- a/android/virtmgr/src/dt_overlay.rs
+++ b/android/virtmgr/src/dt_overlay.rs
@@ -15,14 +15,13 @@
 //! This module support creating AFV related overlays, that can then be appended to DT by VM.
 
 use anyhow::{anyhow, Result};
-use cstr::cstr;
 use fsfdt::FsFdt;
 use libfdt::Fdt;
 use std::ffi::CStr;
 use std::path::Path;
 
-pub(crate) const AVF_NODE_NAME: &CStr = cstr!("avf");
-pub(crate) const UNTRUSTED_NODE_NAME: &CStr = cstr!("untrusted");
+pub(crate) const AVF_NODE_NAME: &CStr = c"avf";
+pub(crate) const UNTRUSTED_NODE_NAME: &CStr = c"untrusted";
 pub(crate) const VM_DT_OVERLAY_PATH: &str = "vm_dt_overlay.dtbo";
 pub(crate) const VM_DT_OVERLAY_MAX_SIZE: usize = 2000;
 
@@ -63,13 +62,13 @@
         Fdt::create_empty_tree(buffer).map_err(|e| anyhow!("Failed to create empty Fdt: {e:?}"))?;
     let mut fragment = fdt
         .root_mut()
-        .add_subnode(cstr!("fragment@0"))
+        .add_subnode(c"fragment@0")
         .map_err(|e| anyhow!("Failed to add fragment node: {e:?}"))?;
     fragment
-        .setprop(cstr!("target-path"), b"/\0")
+        .setprop(c"target-path", b"/\0")
         .map_err(|e| anyhow!("Failed to set target-path property: {e:?}"))?;
     let overlay = fragment
-        .add_subnode(cstr!("__overlay__"))
+        .add_subnode(c"__overlay__")
         .map_err(|e| anyhow!("Failed to add __overlay__ node: {e:?}"))?;
     let avf =
         overlay.add_subnode(AVF_NODE_NAME).map_err(|e| anyhow!("Failed to add avf node: {e:?}"))?;
@@ -87,12 +86,12 @@
 
     // Read dt_path from host DT and overlay onto fdt.
     if let Some(path) = dt_path {
-        fdt.overlay_onto(cstr!("/fragment@0/__overlay__"), path)?;
+        fdt.overlay_onto(c"/fragment@0/__overlay__", path)?;
     }
 
     if !trusted_props.is_empty() {
         let mut avf = fdt
-            .node_mut(cstr!("/fragment@0/__overlay__/avf"))
+            .node_mut(c"/fragment@0/__overlay__/avf")
             .map_err(|e| anyhow!("Failed to search avf node: {e:?}"))?
             .ok_or(anyhow!("Failed to get avf node"))?;
         for (name, value) in trusted_props {
@@ -120,14 +119,14 @@
     #[test]
     fn untrusted_prop_test() {
         let mut buffer = vec![0_u8; VM_DT_OVERLAY_MAX_SIZE];
-        let prop_name = cstr!("XOXO");
+        let prop_name = c"XOXO";
         let prop_val_input = b"OXOX";
         let fdt =
             create_device_tree_overlay(&mut buffer, None, &[(prop_name, prop_val_input)], &[])
                 .unwrap();
 
         let prop_value_dt = fdt
-            .node(cstr!("/fragment@0/__overlay__/avf/untrusted"))
+            .node(c"/fragment@0/__overlay__/avf/untrusted")
             .unwrap()
             .expect("/avf/untrusted node doesn't exist")
             .getprop(prop_name)
@@ -139,14 +138,14 @@
     #[test]
     fn trusted_prop_test() {
         let mut buffer = vec![0_u8; VM_DT_OVERLAY_MAX_SIZE];
-        let prop_name = cstr!("XOXOXO");
+        let prop_name = c"XOXOXO";
         let prop_val_input = b"OXOXOX";
         let fdt =
             create_device_tree_overlay(&mut buffer, None, &[], &[(prop_name, prop_val_input)])
                 .unwrap();
 
         let prop_value_dt = fdt
-            .node(cstr!("/fragment@0/__overlay__/avf"))
+            .node(c"/fragment@0/__overlay__/avf")
             .unwrap()
             .expect("/avf node doesn't exist")
             .getprop(prop_name)
diff --git a/guest/derive_microdroid_vendor_dice_node/Android.bp b/guest/derive_microdroid_vendor_dice_node/Android.bp
index 8b79aad..7a3ccbe 100644
--- a/guest/derive_microdroid_vendor_dice_node/Android.bp
+++ b/guest/derive_microdroid_vendor_dice_node/Android.bp
@@ -10,7 +10,6 @@
     rustlibs: [
         "libanyhow",
         "libclap",
-        "libcstr",
         "libdice_driver",
         "libdiced_open_dice",
         "libdm_rust",
diff --git a/guest/derive_microdroid_vendor_dice_node/src/main.rs b/guest/derive_microdroid_vendor_dice_node/src/main.rs
index 0f0631e..4ec91ad 100644
--- a/guest/derive_microdroid_vendor_dice_node/src/main.rs
+++ b/guest/derive_microdroid_vendor_dice_node/src/main.rs
@@ -16,7 +16,6 @@
 
 use anyhow::{bail, Context, Result};
 use clap::Parser;
-use cstr::cstr;
 use dice_driver::DiceDriver;
 use diced_open_dice::{
     hash, retry_bcc_format_config_descriptor, DiceConfigValues, OwnedDiceArtifacts, HIDDEN_SIZE,
@@ -50,7 +49,7 @@
 // See dice_for_avf_guest.cddl for CDDL of Configuration Descriptor of VM components.
 fn build_descriptor(vbmeta: &VbMetaImage) -> Result<Vec<u8>> {
     let values = DiceConfigValues {
-        component_name: Some(cstr!("Microdroid vendor")),
+        component_name: Some(c"Microdroid vendor"),
         security_version: Some(vbmeta.rollback_index()),
         ..Default::default()
     };
diff --git a/guest/pvmfw/Android.bp b/guest/pvmfw/Android.bp
index 793204d..da056d6 100644
--- a/guest/pvmfw/Android.bp
+++ b/guest/pvmfw/Android.bp
@@ -17,7 +17,6 @@
         "libciborium_nostd",
         "libciborium_io_nostd",
         "libcoset_nostd",
-        "libcstr",
         "libdiced_open_dice_nostd",
         "libhypervisor_backends",
         "liblibfdt_nostd",
@@ -52,9 +51,6 @@
         unit_test: true,
     },
     prefer_rlib: true,
-    rustlibs: [
-        "libcstr",
-    ],
 }
 
 rust_test {
diff --git a/guest/pvmfw/src/bootargs.rs b/guest/pvmfw/src/bootargs.rs
index aacd8e0..0a5697f 100644
--- a/guest/pvmfw/src/bootargs.rs
+++ b/guest/pvmfw/src/bootargs.rs
@@ -108,7 +108,6 @@
 #[cfg(test)]
 mod tests {
     use super::*;
-    use cstr::cstr;
 
     fn check(raw: &CStr, expected: Result<&[(&str, Option<&str>)], ()>) {
         let actual = BootArgsIterator::new(raw);
@@ -136,35 +135,35 @@
 
     #[test]
     fn empty() {
-        check(cstr!(""), Ok(&[]));
-        check(cstr!("    "), Ok(&[]));
-        check(cstr!("  \n  "), Ok(&[]));
+        check(c"", Ok(&[]));
+        check(c"    ", Ok(&[]));
+        check(c"  \n  ", Ok(&[]));
     }
 
     #[test]
     fn single() {
-        check(cstr!("foo"), Ok(&[("foo", None)]));
-        check(cstr!("   foo"), Ok(&[("foo", None)]));
-        check(cstr!("foo   "), Ok(&[("foo", None)]));
-        check(cstr!("   foo   "), Ok(&[("foo", None)]));
+        check(c"foo", Ok(&[("foo", None)]));
+        check(c"   foo", Ok(&[("foo", None)]));
+        check(c"foo   ", Ok(&[("foo", None)]));
+        check(c"   foo   ", Ok(&[("foo", None)]));
     }
 
     #[test]
     fn single_with_value() {
-        check(cstr!("foo=bar"), Ok(&[("foo", Some("=bar"))]));
-        check(cstr!("   foo=bar"), Ok(&[("foo", Some("=bar"))]));
-        check(cstr!("foo=bar   "), Ok(&[("foo", Some("=bar"))]));
-        check(cstr!("   foo=bar   "), Ok(&[("foo", Some("=bar"))]));
+        check(c"foo=bar", Ok(&[("foo", Some("=bar"))]));
+        check(c"   foo=bar", Ok(&[("foo", Some("=bar"))]));
+        check(c"foo=bar   ", Ok(&[("foo", Some("=bar"))]));
+        check(c"   foo=bar   ", Ok(&[("foo", Some("=bar"))]));
 
-        check(cstr!("foo="), Ok(&[("foo", Some("="))]));
-        check(cstr!("   foo="), Ok(&[("foo", Some("="))]));
-        check(cstr!("foo=   "), Ok(&[("foo", Some("="))]));
-        check(cstr!("   foo=   "), Ok(&[("foo", Some("="))]));
+        check(c"foo=", Ok(&[("foo", Some("="))]));
+        check(c"   foo=", Ok(&[("foo", Some("="))]));
+        check(c"foo=   ", Ok(&[("foo", Some("="))]));
+        check(c"   foo=   ", Ok(&[("foo", Some("="))]));
     }
 
     #[test]
     fn single_with_quote() {
-        check(cstr!("foo=hello\" \"world"), Ok(&[("foo", Some("=hello\" \"world"))]));
+        check(c"foo=hello\" \"world", Ok(&[("foo", Some("=hello\" \"world"))]));
     }
 
     #[test]
@@ -175,32 +174,32 @@
     #[test]
     fn multiple() {
         check(
-            cstr!(" a=b   c=d   e=  f g  "),
+            c" a=b   c=d   e=  f g  ",
             Ok(&[("a", Some("=b")), ("c", Some("=d")), ("e", Some("=")), ("f", None), ("g", None)]),
         );
         check(
-            cstr!("   a=b  \n c=d      e=  f g"),
+            c"   a=b  \n c=d      e=  f g",
             Ok(&[("a", Some("=b")), ("c", Some("=d")), ("e", Some("=")), ("f", None), ("g", None)]),
         );
     }
 
     #[test]
     fn incomplete_quote() {
-        check(
-            cstr!("foo=incomplete\" quote bar=y"),
-            Ok(&[("foo", Some("=incomplete\" quote bar=y"))]),
-        );
+        check(c"foo=incomplete\" quote bar=y", Ok(&[("foo", Some("=incomplete\" quote bar=y"))]));
     }
 
     #[test]
     fn complex() {
-        check(cstr!("  a  a1=  b=c d=e,f,g x=\"value with quote\" y=val\"ue with \"multiple\" quo\"te  "), Ok(&[
-            ("a", None),
-            ("a1", Some("=")),
-            ("b", Some("=c")),
-            ("d", Some("=e,f,g")),
-            ("x", Some("=\"value with quote\"")),
-            ("y", Some("=val\"ue with \"multiple\" quo\"te")),
-        ]));
+        check(
+            c"  a  a1=  b=c d=e,f,g x=\"value with quote\" y=val\"ue with \"multiple\" quo\"te  ",
+            Ok(&[
+                ("a", None),
+                ("a1", Some("=")),
+                ("b", Some("=c")),
+                ("d", Some("=e,f,g")),
+                ("x", Some("=\"value with quote\"")),
+                ("y", Some("=val\"ue with \"multiple\" quo\"te")),
+            ]),
+        );
     }
 }
diff --git a/guest/pvmfw/src/device_assignment.rs b/guest/pvmfw/src/device_assignment.rs
index f37f443..bb2e6ce 100644
--- a/guest/pvmfw/src/device_assignment.rs
+++ b/guest/pvmfw/src/device_assignment.rs
@@ -37,18 +37,6 @@
 use zerocopy::byteorder::big_endian::U32;
 use zerocopy::FromBytes as _;
 
-// TODO(b/308694211): Use cstr! from vmbase instead.
-macro_rules! cstr {
-    ($str:literal) => {{
-        const S: &str = concat!($str, "\0");
-        const C: &::core::ffi::CStr = match ::core::ffi::CStr::from_bytes_with_nul(S.as_bytes()) {
-            Ok(v) => v,
-            Err(_) => panic!("string contains interior NUL"),
-        };
-        C
-    }};
-}
-
 // TODO(b/277993056): Keep constants derived from platform.dts in one place.
 const CELLS_PER_INTERRUPT: usize = 3; // from /intc node in platform.dts
 
@@ -332,7 +320,7 @@
     //       };
     //    };
     //
-    // Then locate_overlay_target_path(cstr!("/fragment@rng/__overlay__/rng")) is Ok("/rng")
+    // Then locate_overlay_target_path(c"/fragment@rng/__overlay__/rng") is Ok("/rng")
     //
     // Contrary to fdt_overlay_target_offset(), this API enforces overlay target property
     // 'target-path = "/"', so the overlay doesn't modify and/or append platform DT's existing
@@ -343,10 +331,9 @@
         dtbo_node: &FdtNode,
     ) -> Result<CString> {
         let fragment_node = dtbo_node.supernode_at_depth(1)?;
-        let target_path = fragment_node
-            .getprop_str(cstr!("target-path"))?
-            .ok_or(DeviceAssignmentError::InvalidDtbo)?;
-        if target_path != cstr!("/") {
+        let target_path =
+            fragment_node.getprop_str(c"target-path")?.ok_or(DeviceAssignmentError::InvalidDtbo)?;
+        if target_path != c"/" {
             return Err(DeviceAssignmentError::UnsupportedOverlayTarget);
         }
 
@@ -415,7 +402,7 @@
 
     /// Parses Physical devices in VM DTBO
     fn parse_physical_devices(&self) -> Result<BTreeMap<Phandle, PhysicalDeviceInfo>> {
-        let Some(physical_node) = self.as_ref().node(cstr!("/host"))? else {
+        let Some(physical_node) = self.as_ref().node(c"/host")? else {
             return Ok(BTreeMap::new());
         };
 
@@ -459,7 +446,7 @@
         let vm_dtbo = self.as_ref();
 
         let mut phandle_map = BTreeMap::new();
-        let Some(local_fixups) = vm_dtbo.node(cstr!("/__local_fixups__"))? else {
+        let Some(local_fixups) = vm_dtbo.node(c"/__local_fixups__")? else {
             return Ok(phandle_map);
         };
 
@@ -615,15 +602,14 @@
 
 impl PvIommu {
     fn parse(node: &FdtNode) -> Result<Self> {
-        let iommu_cells = node
-            .getprop_u32(cstr!("#iommu-cells"))?
-            .ok_or(DeviceAssignmentError::InvalidPvIommu)?;
+        let iommu_cells =
+            node.getprop_u32(c"#iommu-cells")?.ok_or(DeviceAssignmentError::InvalidPvIommu)?;
         // Ensures #iommu-cells = <1>. It means that `<iommus>` entry contains pair of
         // (pvIOMMU ID, vSID)
         if iommu_cells != 1 {
             return Err(DeviceAssignmentError::InvalidPvIommu);
         }
-        let id = node.getprop_u32(cstr!("id"))?.ok_or(DeviceAssignmentError::InvalidPvIommu)?;
+        let id = node.getprop_u32(c"id")?.ok_or(DeviceAssignmentError::InvalidPvIommu)?;
         Ok(Self { id })
     }
 }
@@ -687,10 +673,10 @@
 
 impl PhysIommu {
     fn parse(node: &FdtNode) -> Result<Option<Self>> {
-        let Some(token) = node.getprop_u64(cstr!("android,pvmfw,token"))? else {
+        let Some(token) = node.getprop_u64(c"android,pvmfw,token")? else {
             return Ok(None);
         };
-        let Some(iommu_cells) = node.getprop_u32(cstr!("#iommu-cells"))? else {
+        let Some(iommu_cells) = node.getprop_u32(c"#iommu-cells")? else {
             return Err(DeviceAssignmentError::InvalidPhysIommu);
         };
         // Currently only supports #iommu-cells = <1>.
@@ -715,7 +701,7 @@
         phys_iommus: &BTreeMap<Phandle, PhysIommu>,
     ) -> Result<Vec<(PhysIommu, Sid)>> {
         let mut iommus = vec![];
-        let Some(mut cells) = node.getprop_cells(cstr!("iommus"))? else {
+        let Some(mut cells) = node.getprop_cells(c"iommus")? else {
             return Ok(iommus);
         };
         while let Some(cell) = cells.next() {
@@ -735,7 +721,7 @@
     }
 
     fn parse(node: &FdtNode, phys_iommus: &BTreeMap<Phandle, PhysIommu>) -> Result<Option<Self>> {
-        let Some(phandle) = node.getprop_u32(cstr!("android,pvmfw,target"))? else {
+        let Some(phandle) = node.getprop_u32(c"android,pvmfw,target")? else {
             return Ok(None);
         };
         let target = Phandle::try_from(phandle)?;
@@ -812,7 +798,7 @@
         // Validation: Validate if interrupts cell numbers are multiple of #interrupt-cells.
         // We can't know how many interrupts would exist.
         let interrupts_cells = node
-            .getprop_cells(cstr!("interrupts"))?
+            .getprop_cells(c"interrupts")?
             .ok_or(DeviceAssignmentError::InvalidInterrupts)?
             .count();
         if interrupts_cells % CELLS_PER_INTERRUPT != 0 {
@@ -820,7 +806,7 @@
         }
 
         // Once validated, keep the raw bytes so patch can be done with setprop()
-        Ok(node.getprop(cstr!("interrupts")).unwrap().unwrap().into())
+        Ok(node.getprop(c"interrupts").unwrap().unwrap().into())
     }
 
     // TODO(b/277993056): Also validate /__local_fixups__ to ensure that <iommus> has phandle.
@@ -829,7 +815,7 @@
         pviommus: &BTreeMap<Phandle, PvIommu>,
     ) -> Result<Vec<(PvIommu, Vsid)>> {
         let mut iommus = vec![];
-        let Some(mut cells) = node.getprop_cells(cstr!("iommus"))? else {
+        let Some(mut cells) = node.getprop_cells(c"iommus")? else {
             return Ok(iommus);
         };
         while let Some(cell) = cells.next() {
@@ -917,15 +903,15 @@
 
     fn patch(&self, fdt: &mut Fdt, pviommu_phandles: &BTreeMap<PvIommu, Phandle>) -> Result<()> {
         let mut dst = fdt.node_mut(&self.node_path)?.unwrap();
-        dst.setprop(cstr!("reg"), &to_be_bytes(&self.reg))?;
-        dst.setprop(cstr!("interrupts"), &self.interrupts)?;
+        dst.setprop(c"reg", &to_be_bytes(&self.reg))?;
+        dst.setprop(c"interrupts", &self.interrupts)?;
         let mut iommus = Vec::with_capacity(8 * self.iommus.len());
         for (pviommu, vsid) in &self.iommus {
             let phandle = pviommu_phandles.get(pviommu).unwrap();
             iommus.extend_from_slice(&u32::from(*phandle).to_be_bytes());
             iommus.extend_from_slice(&vsid.0.to_be_bytes());
         }
-        dst.setprop(cstr!("iommus"), &iommus)?;
+        dst.setprop(c"iommus", &iommus)?;
 
         Ok(())
     }
@@ -939,7 +925,7 @@
 }
 
 impl DeviceAssignmentInfo {
-    const PVIOMMU_COMPATIBLE: &'static CStr = cstr!("pkvm,pviommu");
+    const PVIOMMU_COMPATIBLE: &'static CStr = c"pkvm,pviommu";
 
     /// Parses pvIOMMUs in fdt
     // Note: This will validate pvIOMMU ids' uniqueness, even when unassigned.
@@ -1046,8 +1032,8 @@
         Self::validate_pviommu_topology(&assigned_devices)?;
 
         let mut vm_dtbo_mask = vm_dtbo.build_mask(assigned_device_paths)?;
-        vm_dtbo_mask.mask_all(&DtPathTokens::new(cstr!("/__local_fixups__"))?);
-        vm_dtbo_mask.mask_all(&DtPathTokens::new(cstr!("/__symbols__"))?);
+        vm_dtbo_mask.mask_all(&DtPathTokens::new(c"/__local_fixups__")?);
+        vm_dtbo_mask.mask_all(&DtPathTokens::new(c"/__symbols__")?);
 
         // Note: Any node without __overlay__ will be ignored by fdt_apply_overlay,
         // so doesn't need to be filtered.
@@ -1060,7 +1046,7 @@
         let vm_dtbo = vm_dtbo.as_mut();
 
         // Filter unused references in /__local_fixups__
-        if let Some(local_fixups) = vm_dtbo.node_mut(cstr!("/__local_fixups__"))? {
+        if let Some(local_fixups) = vm_dtbo.node_mut(c"/__local_fixups__")? {
             filter_with_mask(local_fixups, &self.vm_dtbo_mask)?;
         }
 
@@ -1078,7 +1064,7 @@
         for pviommu in &self.pviommus {
             let mut node = compatible.ok_or(DeviceAssignmentError::TooManyPvIommu)?;
             let phandle = node.as_node().get_phandle()?.ok_or(DeviceAssignmentError::Internal)?;
-            node.setprop_inplace(cstr!("id"), &pviommu.id.to_be_bytes())?;
+            node.setprop_inplace(c"id", &pviommu.id.to_be_bytes())?;
             if pviommu_phandles.insert(*pviommu, phandle).is_some() {
                 return Err(DeviceAssignmentError::Internal);
             }
@@ -1108,10 +1094,10 @@
 
 /// Cleans device trees not to contain any pre-populated nodes/props for device assignment.
 pub fn clean(fdt: &mut Fdt) -> Result<()> {
-    let mut compatible = fdt.root_mut().next_compatible(cstr!("pkvm,pviommu"))?;
+    let mut compatible = fdt.root_mut().next_compatible(c"pkvm,pviommu")?;
     // Filters pre-populated
     while let Some(filtered_pviommu) = compatible {
-        compatible = filtered_pviommu.delete_and_next_compatible(cstr!("pkvm,pviommu"))?;
+        compatible = filtered_pviommu.delete_and_next_compatible(c"pkvm,pviommu")?;
     }
 
     // Removes any dangling references in __symbols__ (e.g. removed pvIOMMUs)
@@ -1239,24 +1225,23 @@
                 return Err(FdtError::NotFound.into());
             };
 
-            let reg = node.getprop(cstr!("reg"))?.ok_or(DeviceAssignmentError::MalformedReg)?;
-            let interrupts = node
-                .getprop(cstr!("interrupts"))?
-                .ok_or(DeviceAssignmentError::InvalidInterrupts)?;
+            let reg = node.getprop(c"reg")?.ok_or(DeviceAssignmentError::MalformedReg)?;
+            let interrupts =
+                node.getprop(c"interrupts")?.ok_or(DeviceAssignmentError::InvalidInterrupts)?;
             let mut iommus = vec![];
-            if let Some(mut cells) = node.getprop_cells(cstr!("iommus"))? {
+            if let Some(mut cells) = node.getprop_cells(c"iommus")? {
                 while let Some(pviommu_id) = cells.next() {
                     // pvIOMMU id
                     let phandle = Phandle::try_from(pviommu_id)?;
                     let pviommu = fdt
                         .node_with_phandle(phandle)?
                         .ok_or(DeviceAssignmentError::MalformedIommus)?;
-                    let compatible = pviommu.getprop_str(cstr!("compatible"));
-                    if compatible != Ok(Some(cstr!("pkvm,pviommu"))) {
+                    let compatible = pviommu.getprop_str(c"compatible");
+                    if compatible != Ok(Some(c"pkvm,pviommu")) {
                         return Err(DeviceAssignmentError::MalformedIommus);
                     }
                     let id = pviommu
-                        .getprop_u32(cstr!("id"))?
+                        .getprop_u32(c"id")?
                         .ok_or(DeviceAssignmentError::MalformedIommus)?;
                     iommus.push(id);
 
@@ -1273,8 +1258,8 @@
 
     fn collect_pviommus(fdt: &Fdt) -> Result<Vec<u32>> {
         let mut pviommus = BTreeSet::new();
-        for pviommu in fdt.compatible_nodes(cstr!("pkvm,pviommu"))? {
-            if let Ok(Some(id)) = pviommu.getprop_u32(cstr!("id")) {
+        for pviommu in fdt.compatible_nodes(c"pkvm,pviommu")? {
+            if let Ok(Some(id)) = pviommu.getprop_u32(c"id") {
                 pviommus.insert(id);
             }
         }
@@ -1395,24 +1380,24 @@
 
         let symbols = vm_dtbo.symbols().unwrap().unwrap();
 
-        let rng = vm_dtbo.node(cstr!("/fragment@0/__overlay__/rng")).unwrap();
+        let rng = vm_dtbo.node(c"/fragment@0/__overlay__/rng").unwrap();
         assert_ne!(rng, None);
-        let rng_symbol = symbols.getprop_str(cstr!("rng")).unwrap();
-        assert_eq!(Some(cstr!("/fragment@0/__overlay__/rng")), rng_symbol);
+        let rng_symbol = symbols.getprop_str(c"rng").unwrap();
+        assert_eq!(Some(c"/fragment@0/__overlay__/rng"), rng_symbol);
 
-        let light = vm_dtbo.node(cstr!("/fragment@0/__overlay__/light")).unwrap();
+        let light = vm_dtbo.node(c"/fragment@0/__overlay__/light").unwrap();
         assert_eq!(light, None);
-        let light_symbol = symbols.getprop_str(cstr!("light")).unwrap();
+        let light_symbol = symbols.getprop_str(c"light").unwrap();
         assert_eq!(None, light_symbol);
 
-        let led = vm_dtbo.node(cstr!("/fragment@0/__overlay__/led")).unwrap();
+        let led = vm_dtbo.node(c"/fragment@0/__overlay__/led").unwrap();
         assert_eq!(led, None);
-        let led_symbol = symbols.getprop_str(cstr!("led")).unwrap();
+        let led_symbol = symbols.getprop_str(c"led").unwrap();
         assert_eq!(None, led_symbol);
 
-        let backlight = vm_dtbo.node(cstr!("/fragment@0/__overlay__/bus0/backlight")).unwrap();
+        let backlight = vm_dtbo.node(c"/fragment@0/__overlay__/bus0/backlight").unwrap();
         assert_eq!(backlight, None);
-        let backlight_symbol = symbols.getprop_str(cstr!("backlight")).unwrap();
+        let backlight_symbol = symbols.getprop_str(c"backlight").unwrap();
         assert_eq!(None, backlight_symbol);
     }
 
@@ -1440,19 +1425,19 @@
         }
         device_info.patch(platform_dt).unwrap();
 
-        let rng_node = platform_dt.node(cstr!("/bus0/backlight")).unwrap().unwrap();
-        let phandle = rng_node.getprop_u32(cstr!("phandle")).unwrap();
+        let rng_node = platform_dt.node(c"/bus0/backlight").unwrap().unwrap();
+        let phandle = rng_node.getprop_u32(c"phandle").unwrap();
         assert_ne!(None, phandle);
 
         // Note: Intentionally not using AssignedDeviceNode for matching all props.
         type FdtResult<T> = libfdt::Result<T>;
         let expected: Vec<(FdtResult<&CStr>, FdtResult<Vec<u8>>)> = vec![
-            (Ok(cstr!("android,backlight,ignore-gctrl-reset")), Ok(Vec::new())),
-            (Ok(cstr!("compatible")), Ok(Vec::from(*b"android,backlight\0"))),
-            (Ok(cstr!("interrupts")), Ok(into_fdt_prop(vec![0x0, 0xF, 0x4]))),
-            (Ok(cstr!("iommus")), Ok(Vec::new())),
-            (Ok(cstr!("phandle")), Ok(into_fdt_prop(vec![phandle.unwrap()]))),
-            (Ok(cstr!("reg")), Ok(into_fdt_prop(vec![0x0, 0x9, 0x0, 0xFF]))),
+            (Ok(c"android,backlight,ignore-gctrl-reset"), Ok(Vec::new())),
+            (Ok(c"compatible"), Ok(Vec::from(*b"android,backlight\0"))),
+            (Ok(c"interrupts"), Ok(into_fdt_prop(vec![0x0, 0xF, 0x4]))),
+            (Ok(c"iommus"), Ok(Vec::new())),
+            (Ok(c"phandle"), Ok(into_fdt_prop(vec![phandle.unwrap()]))),
+            (Ok(c"reg"), Ok(into_fdt_prop(vec![0x0, 0x9, 0x0, 0xFF]))),
         ];
 
         let mut properties: Vec<_> = rng_node
@@ -1493,7 +1478,7 @@
         }
         device_info.patch(platform_dt).unwrap();
 
-        let compatible = platform_dt.root().next_compatible(cstr!("pkvm,pviommu")).unwrap();
+        let compatible = platform_dt.root().next_compatible(c"pkvm,pviommu").unwrap();
         assert_eq!(None, compatible);
 
         if let Some(symbols) = platform_dt.symbols().unwrap() {
@@ -1794,12 +1779,12 @@
         let mut platform_dt_data = pvmfw_fdt_template::RAW.to_vec();
         let platform_dt = Fdt::from_mut_slice(&mut platform_dt_data).unwrap();
 
-        let compatible = platform_dt.root().next_compatible(cstr!("pkvm,pviommu"));
+        let compatible = platform_dt.root().next_compatible(c"pkvm,pviommu");
         assert_ne!(None, compatible.unwrap());
 
         clean(platform_dt).unwrap();
 
-        let compatible = platform_dt.root().next_compatible(cstr!("pkvm,pviommu"));
+        let compatible = platform_dt.root().next_compatible(c"pkvm,pviommu");
         assert_eq!(Ok(None), compatible);
     }
 
diff --git a/guest/pvmfw/src/fdt.rs b/guest/pvmfw/src/fdt.rs
index 4370675..29212f9 100644
--- a/guest/pvmfw/src/fdt.rs
+++ b/guest/pvmfw/src/fdt.rs
@@ -28,7 +28,6 @@
 use core::fmt;
 use core::mem::size_of;
 use core::ops::Range;
-use cstr::cstr;
 use hypervisor_backends::get_device_assigner;
 use hypervisor_backends::get_mem_sharer;
 use libfdt::AddressRange;
@@ -83,10 +82,10 @@
 /// Extract from /config the address range containing the pre-loaded kernel. Absence of /config is
 /// not an error.
 pub fn read_kernel_range_from(fdt: &Fdt) -> libfdt::Result<Option<Range<usize>>> {
-    let addr = cstr!("kernel-address");
-    let size = cstr!("kernel-size");
+    let addr = c"kernel-address";
+    let size = c"kernel-size";
 
-    if let Some(config) = fdt.node(cstr!("/config"))? {
+    if let Some(config) = fdt.node(c"/config")? {
         if let (Some(addr), Some(size)) = (config.getprop_u32(addr)?, config.getprop_u32(size)?) {
             let addr = addr as usize;
             let size = size as usize;
@@ -101,8 +100,8 @@
 /// Extract from /chosen the address range containing the pre-loaded ramdisk. Absence is not an
 /// error as there can be initrd-less VM.
 pub fn read_initrd_range_from(fdt: &Fdt) -> libfdt::Result<Option<Range<usize>>> {
-    let start = cstr!("linux,initrd-start");
-    let end = cstr!("linux,initrd-end");
+    let start = c"linux,initrd-start";
+    let end = c"linux,initrd-end";
 
     if let Some(chosen) = fdt.chosen()? {
         if let (Some(start), Some(end)) = (chosen.getprop_u32(start)?, chosen.getprop_u32(end)?) {
@@ -118,14 +117,14 @@
     let end = u32::try_from(initrd_range.end).unwrap();
 
     let mut node = fdt.chosen_mut()?.ok_or(FdtError::NotFound)?;
-    node.setprop(cstr!("linux,initrd-start"), &start.to_be_bytes())?;
-    node.setprop(cstr!("linux,initrd-end"), &end.to_be_bytes())?;
+    node.setprop(c"linux,initrd-start", &start.to_be_bytes())?;
+    node.setprop(c"linux,initrd-end", &end.to_be_bytes())?;
     Ok(())
 }
 
 fn read_bootargs_from(fdt: &Fdt) -> libfdt::Result<Option<CString>> {
     if let Some(chosen) = fdt.chosen()? {
-        if let Some(bootargs) = chosen.getprop_str(cstr!("bootargs"))? {
+        if let Some(bootargs) = chosen.getprop_str(c"bootargs")? {
             // We need to copy the string to heap because the original fdt will be invalidated
             // by the templated DT
             let copy = CString::new(bootargs.to_bytes()).map_err(|_| FdtError::BadValue)?;
@@ -140,7 +139,7 @@
     // This function is called before the verification is done. So, we just copy the bootargs to
     // the new FDT unmodified. This will be filtered again in the modify_for_next_stage function
     // if the VM is not debuggable.
-    node.setprop(cstr!("bootargs"), bootargs.to_bytes_with_nul())
+    node.setprop(c"bootargs", bootargs.to_bytes_with_nul())
 }
 
 /// Reads and validates the memory range in the DT.
@@ -186,9 +185,9 @@
 fn patch_memory_range(fdt: &mut Fdt, memory_range: &Range<usize>) -> libfdt::Result<()> {
     let addr = u64::try_from(MEM_START).unwrap();
     let size = u64::try_from(memory_range.len()).unwrap();
-    fdt.node_mut(cstr!("/memory"))?
+    fdt.node_mut(c"/memory")?
         .ok_or(FdtError::NotFound)?
-        .setprop_inplace(cstr!("reg"), [addr.to_be(), size.to_be()].as_bytes())
+        .setprop_inplace(c"reg", [addr.to_be(), size.to_be()].as_bytes())
 }
 
 #[derive(Debug, Default)]
@@ -207,7 +206,7 @@
     let mut table = ArrayVec::new();
     let mut opp_nodes = opp_node.subnodes()?;
     for subnode in opp_nodes.by_ref().take(table.capacity()) {
-        let prop = subnode.getprop_u64(cstr!("opp-hz"))?.ok_or(FdtError::NotFound)?;
+        let prop = subnode.getprop_u64(c"opp-hz")?.ok_or(FdtError::NotFound)?;
         table.push(prop);
     }
 
@@ -239,7 +238,7 @@
 }
 
 fn read_cpu_map_from(fdt: &Fdt) -> libfdt::Result<Option<BTreeMap<Phandle, (usize, usize)>>> {
-    let Some(cpu_map) = fdt.node(cstr!("/cpus/cpu-map"))? else {
+    let Some(cpu_map) = fdt.node(c"/cpus/cpu-map")? else {
         return Ok(None);
     };
 
@@ -254,7 +253,7 @@
             let Some(core) = cluster.subnode(&name)? else {
                 break;
             };
-            let cpu = core.getprop_u32(cstr!("cpu"))?.ok_or(FdtError::NotFound)?;
+            let cpu = core.getprop_u32(c"cpu")?.ok_or(FdtError::NotFound)?;
             let prev = topology.insert(cpu.try_into()?, (n, m));
             if prev.is_some() {
                 return Err(FdtError::BadValue);
@@ -273,10 +272,10 @@
     let cpu_map = read_cpu_map_from(fdt)?;
     let mut topology: CpuTopology = Default::default();
 
-    let mut cpu_nodes = fdt.compatible_nodes(cstr!("arm,armv8"))?;
+    let mut cpu_nodes = fdt.compatible_nodes(c"arm,armv8")?;
     for (idx, cpu) in cpu_nodes.by_ref().take(cpus.capacity()).enumerate() {
-        let cpu_capacity = cpu.getprop_u32(cstr!("capacity-dmips-mhz"))?;
-        let opp_phandle = cpu.getprop_u32(cstr!("operating-points-v2"))?;
+        let cpu_capacity = cpu.getprop_u32(c"capacity-dmips-mhz")?;
+        let opp_phandle = cpu.getprop_u32(c"operating-points-v2")?;
         let opptable_info = if let Some(phandle) = opp_phandle {
             let phandle = phandle.try_into()?;
             let node = fdt.node_with_phandle(phandle)?.ok_or(FdtError::NotFound)?;
@@ -313,7 +312,7 @@
 }
 
 fn read_vcpufreq_info(fdt: &Fdt) -> libfdt::Result<Option<VcpufreqInfo>> {
-    let mut nodes = fdt.compatible_nodes(cstr!("virtual,android-v-only-cpufreq"))?;
+    let mut nodes = fdt.compatible_nodes(c"virtual,android-v-only-cpufreq")?;
     let Some(node) = nodes.next() else {
         return Ok(None);
     };
@@ -351,7 +350,7 @@
     node: FdtNodeMut,
     opptable: Option<ArrayVec<[u64; CpuInfo::MAX_OPPTABLES]>>,
 ) -> libfdt::Result<()> {
-    let oppcompat = cstr!("operating-points-v2");
+    let oppcompat = c"operating-points-v2";
     let next = node.next_compatible(oppcompat)?.ok_or(FdtError::NoSpace)?;
 
     let Some(opptable) = opptable else {
@@ -362,7 +361,7 @@
 
     for entry in opptable {
         let mut subnode = next_subnode.ok_or(FdtError::NoSpace)?;
-        subnode.setprop_inplace(cstr!("opp-hz"), &entry.to_be_bytes())?;
+        subnode.setprop_inplace(c"opp-hz", &entry.to_be_bytes())?;
         next_subnode = subnode.next_subnode()?;
     }
 
@@ -391,14 +390,14 @@
     cpus: &[CpuInfo],
     topology: &Option<CpuTopology>,
 ) -> libfdt::Result<()> {
-    const COMPAT: &CStr = cstr!("arm,armv8");
+    const COMPAT: &CStr = c"arm,armv8";
     let mut cpu_phandles = Vec::new();
     for (idx, cpu) in cpus.iter().enumerate() {
         let mut cur = get_nth_compatible(fdt, idx, COMPAT)?.ok_or(FdtError::NoSpace)?;
         let phandle = cur.as_node().get_phandle()?.unwrap();
         cpu_phandles.push(phandle);
         if let Some(cpu_capacity) = cpu.cpu_capacity {
-            cur.setprop_inplace(cstr!("capacity-dmips-mhz"), &cpu_capacity.to_be_bytes())?;
+            cur.setprop_inplace(c"capacity-dmips-mhz", &cpu_capacity.to_be_bytes())?;
         }
         patch_opptable(cur, cpu.opptable_info)?;
     }
@@ -418,7 +417,7 @@
                     iter = if let Some(core_idx) = core {
                         let phandle = *cpu_phandles.get(core_idx).unwrap();
                         let value = u32::from(phandle).to_be_bytes();
-                        core_node.setprop_inplace(cstr!("cpu"), &value)?;
+                        core_node.setprop_inplace(c"cpu", &value)?;
                         core_node.next_subnode()?
                     } else {
                         core_node.delete_and_next_subnode()?
@@ -430,7 +429,7 @@
             }
         }
     } else {
-        fdt.node_mut(cstr!("/cpus/cpu-map"))?.unwrap().nop()?;
+        fdt.node_mut(c"/cpus/cpu-map")?.unwrap().nop()?;
     }
 
     Ok(())
@@ -440,7 +439,7 @@
 /// the guest that don't require being validated by pvmfw.
 fn parse_untrusted_props(fdt: &Fdt) -> libfdt::Result<BTreeMap<CString, Vec<u8>>> {
     let mut props = BTreeMap::new();
-    if let Some(node) = fdt.node(cstr!("/avf/untrusted"))? {
+    if let Some(node) = fdt.node(c"/avf/untrusted")? {
         for property in node.properties()? {
             let name = property.name()?;
             let value = property.value()?;
@@ -457,7 +456,7 @@
 /// Read candidate properties' names from DT which could be overlaid
 fn parse_vm_ref_dt(fdt: &Fdt) -> libfdt::Result<BTreeMap<CString, Vec<u8>>> {
     let mut property_map = BTreeMap::new();
-    if let Some(avf_node) = fdt.node(cstr!("/avf"))? {
+    if let Some(avf_node) = fdt.node(c"/avf")? {
         for property in avf_node.properties()? {
             let name = property.name()?;
             let value = property.value()?;
@@ -471,8 +470,7 @@
 }
 
 fn validate_untrusted_props(props: &BTreeMap<CString, Vec<u8>>) -> Result<(), FdtValidationError> {
-    const FORBIDDEN_PROPS: &[&CStr] =
-        &[cstr!("compatible"), cstr!("linux,phandle"), cstr!("phandle")];
+    const FORBIDDEN_PROPS: &[&CStr] = &[c"compatible", c"linux,phandle", c"phandle"];
 
     for name in FORBIDDEN_PROPS {
         if props.contains_key(*name) {
@@ -491,9 +489,9 @@
     props_info: &BTreeMap<CString, Vec<u8>>,
 ) -> libfdt::Result<()> {
     let root_vm_dt = vm_dt.root_mut();
-    let mut avf_vm_dt = root_vm_dt.add_subnode(cstr!("avf"))?;
+    let mut avf_vm_dt = root_vm_dt.add_subnode(c"avf")?;
     // TODO(b/318431677): Validate nodes beyond /avf.
-    let avf_node = vm_ref_dt.node(cstr!("/avf"))?.ok_or(FdtError::NotFound)?;
+    let avf_node = vm_ref_dt.node(c"/avf")?.ok_or(FdtError::NotFound)?;
     for (name, value) in props_info.iter() {
         if let Some(ref_value) = avf_node.getprop(name)? {
             if value != ref_value {
@@ -551,14 +549,13 @@
 
 /// Read pci host controller ranges, irq maps, and irq map masks from DT
 fn read_pci_info_from(fdt: &Fdt) -> libfdt::Result<PciInfo> {
-    let node =
-        fdt.compatible_nodes(cstr!("pci-host-cam-generic"))?.next().ok_or(FdtError::NotFound)?;
+    let node = fdt.compatible_nodes(c"pci-host-cam-generic")?.next().ok_or(FdtError::NotFound)?;
 
     let mut ranges = node.ranges::<(u32, u64), u64, u64>()?.ok_or(FdtError::NotFound)?;
     let range0 = ranges.next().ok_or(FdtError::NotFound)?;
     let range1 = ranges.next().ok_or(FdtError::NotFound)?;
 
-    let irq_masks = node.getprop_cells(cstr!("interrupt-map-mask"))?.ok_or(FdtError::NotFound)?;
+    let irq_masks = node.getprop_cells(c"interrupt-map-mask")?.ok_or(FdtError::NotFound)?;
     let mut chunks = CellChunkIterator::<{ PciInfo::IRQ_MASK_CELLS }>::new(irq_masks);
     let irq_masks = (&mut chunks).take(PciInfo::MAX_IRQS).collect();
 
@@ -567,7 +564,7 @@
         return Err(FdtError::NoSpace);
     }
 
-    let irq_maps = node.getprop_cells(cstr!("interrupt-map"))?.ok_or(FdtError::NotFound)?;
+    let irq_maps = node.getprop_cells(c"interrupt-map")?.ok_or(FdtError::NotFound)?;
     let mut chunks = CellChunkIterator::<{ PciInfo::IRQ_MAP_CELLS }>::new(irq_maps);
     let irq_maps = (&mut chunks).take(PciInfo::MAX_IRQS).collect();
 
@@ -721,16 +718,16 @@
 
 fn patch_pci_info(fdt: &mut Fdt, pci_info: &PciInfo) -> libfdt::Result<()> {
     let mut node =
-        fdt.root_mut().next_compatible(cstr!("pci-host-cam-generic"))?.ok_or(FdtError::NotFound)?;
+        fdt.root_mut().next_compatible(c"pci-host-cam-generic")?.ok_or(FdtError::NotFound)?;
 
     let irq_masks_size = pci_info.irq_masks.len() * size_of::<PciIrqMask>();
-    node.trimprop(cstr!("interrupt-map-mask"), irq_masks_size)?;
+    node.trimprop(c"interrupt-map-mask", irq_masks_size)?;
 
     let irq_maps_size = pci_info.irq_maps.len() * size_of::<PciIrqMap>();
-    node.trimprop(cstr!("interrupt-map"), irq_maps_size)?;
+    node.trimprop(c"interrupt-map", irq_maps_size)?;
 
     node.setprop_inplace(
-        cstr!("ranges"),
+        c"ranges",
         [pci_info.ranges[0].to_cells(), pci_info.ranges[1].to_cells()].as_flattened(),
     )
 }
@@ -747,7 +744,7 @@
 fn read_serial_info_from(fdt: &Fdt) -> libfdt::Result<SerialInfo> {
     let mut addrs = ArrayVec::new();
 
-    let mut serial_nodes = fdt.compatible_nodes(cstr!("ns16550a"))?;
+    let mut serial_nodes = fdt.compatible_nodes(c"ns16550a")?;
     for node in serial_nodes.by_ref().take(addrs.capacity()) {
         let reg = node.first_reg()?;
         addrs.push(reg.addr);
@@ -793,7 +790,7 @@
 }
 
 fn read_wdt_info_from(fdt: &Fdt) -> libfdt::Result<WdtInfo> {
-    let mut node_iter = fdt.compatible_nodes(cstr!("qemu,vcpu-stall-detector"))?;
+    let mut node_iter = fdt.compatible_nodes(c"qemu,vcpu-stall-detector")?;
     let node = node_iter.next().ok_or(FdtError::NotFound)?;
     let mut ranges = node.reg()?.ok_or(FdtError::NotFound)?;
 
@@ -803,7 +800,7 @@
         warn!("Discarding extra vmwdt <reg> entries.");
     }
 
-    let interrupts = node.getprop_cells(cstr!("interrupts"))?.ok_or(FdtError::NotFound)?;
+    let interrupts = node.getprop_cells(c"interrupts")?.ok_or(FdtError::NotFound)?;
     let mut chunks = CellChunkIterator::<{ WdtInfo::IRQ_CELLS }>::new(interrupts);
     let irq = chunks.next().ok_or(FdtError::NotFound)?;
 
@@ -831,15 +828,15 @@
 
     let mut node = fdt
         .root_mut()
-        .next_compatible(cstr!("qemu,vcpu-stall-detector"))?
+        .next_compatible(c"qemu,vcpu-stall-detector")?
         .ok_or(libfdt::FdtError::NotFound)?;
-    node.setprop_inplace(cstr!("interrupts"), interrupts.as_bytes())?;
+    node.setprop_inplace(c"interrupts", interrupts.as_bytes())?;
     Ok(())
 }
 
 /// Patch the DT by deleting the ns16550a compatible nodes whose address are unknown
 fn patch_serial_info(fdt: &mut Fdt, serial_info: &SerialInfo) -> libfdt::Result<()> {
-    let name = cstr!("ns16550a");
+    let name = c"ns16550a";
     let mut next = fdt.root_mut().next_compatible(name);
     while let Some(current) = next? {
         let reg =
@@ -889,27 +886,27 @@
 
 fn patch_swiotlb_info(fdt: &mut Fdt, swiotlb_info: &SwiotlbInfo) -> libfdt::Result<()> {
     let mut node =
-        fdt.root_mut().next_compatible(cstr!("restricted-dma-pool"))?.ok_or(FdtError::NotFound)?;
+        fdt.root_mut().next_compatible(c"restricted-dma-pool")?.ok_or(FdtError::NotFound)?;
 
     if let Some(range) = swiotlb_info.fixed_range() {
         node.setprop_addrrange_inplace(
-            cstr!("reg"),
+            c"reg",
             range.start.try_into().unwrap(),
             range.len().try_into().unwrap(),
         )?;
-        node.nop_property(cstr!("size"))?;
-        node.nop_property(cstr!("alignment"))?;
+        node.nop_property(c"size")?;
+        node.nop_property(c"alignment")?;
     } else {
-        node.nop_property(cstr!("reg"))?;
-        node.setprop_inplace(cstr!("size"), &swiotlb_info.size.to_be_bytes())?;
-        node.setprop_inplace(cstr!("alignment"), &swiotlb_info.align.unwrap().to_be_bytes())?;
+        node.nop_property(c"reg")?;
+        node.setprop_inplace(c"size", &swiotlb_info.size.to_be_bytes())?;
+        node.setprop_inplace(c"alignment", &swiotlb_info.align.unwrap().to_be_bytes())?;
     }
 
     Ok(())
 }
 
 fn patch_gic(fdt: &mut Fdt, num_cpus: usize) -> libfdt::Result<()> {
-    let node = fdt.compatible_nodes(cstr!("arm,gic-v3"))?.next().ok_or(FdtError::NotFound)?;
+    let node = fdt.compatible_nodes(c"arm,gic-v3")?.next().ok_or(FdtError::NotFound)?;
     let mut ranges = node.reg()?.ok_or(FdtError::NotFound)?;
     let range0 = ranges.next().ok_or(FdtError::NotFound)?;
     let mut range1 = ranges.next().ok_or(FdtError::NotFound)?;
@@ -927,16 +924,15 @@
     let (addr1, size1) = range1.to_cells();
     let value = [addr0, size0.unwrap(), addr1, size1.unwrap()];
 
-    let mut node =
-        fdt.root_mut().next_compatible(cstr!("arm,gic-v3"))?.ok_or(FdtError::NotFound)?;
-    node.setprop_inplace(cstr!("reg"), value.as_flattened())
+    let mut node = fdt.root_mut().next_compatible(c"arm,gic-v3")?.ok_or(FdtError::NotFound)?;
+    node.setprop_inplace(c"reg", value.as_flattened())
 }
 
 fn patch_timer(fdt: &mut Fdt, num_cpus: usize) -> libfdt::Result<()> {
     const NUM_INTERRUPTS: usize = 4;
     const CELLS_PER_INTERRUPT: usize = 3;
-    let node = fdt.compatible_nodes(cstr!("arm,armv8-timer"))?.next().ok_or(FdtError::NotFound)?;
-    let interrupts = node.getprop_cells(cstr!("interrupts"))?.ok_or(FdtError::NotFound)?;
+    let node = fdt.compatible_nodes(c"arm,armv8-timer")?.next().ok_or(FdtError::NotFound)?;
+    let interrupts = node.getprop_cells(c"interrupts")?.ok_or(FdtError::NotFound)?;
     let mut value: ArrayVec<[u32; NUM_INTERRUPTS * CELLS_PER_INTERRUPT]> =
         interrupts.take(NUM_INTERRUPTS * CELLS_PER_INTERRUPT).collect();
 
@@ -953,20 +949,19 @@
 
     let value = value.into_inner();
 
-    let mut node =
-        fdt.root_mut().next_compatible(cstr!("arm,armv8-timer"))?.ok_or(FdtError::NotFound)?;
-    node.setprop_inplace(cstr!("interrupts"), value.as_bytes())
+    let mut node = fdt.root_mut().next_compatible(c"arm,armv8-timer")?.ok_or(FdtError::NotFound)?;
+    node.setprop_inplace(c"interrupts", value.as_bytes())
 }
 
 fn patch_untrusted_props(fdt: &mut Fdt, props: &BTreeMap<CString, Vec<u8>>) -> libfdt::Result<()> {
-    let avf_node = if let Some(node) = fdt.node_mut(cstr!("/avf"))? {
+    let avf_node = if let Some(node) = fdt.node_mut(c"/avf")? {
         node
     } else {
-        fdt.root_mut().add_subnode(cstr!("avf"))?
+        fdt.root_mut().add_subnode(c"avf")?
     };
 
     // The node shouldn't already be present; if it is, return the error.
-    let mut node = avf_node.add_subnode(cstr!("untrusted"))?;
+    let mut node = avf_node.add_subnode(c"untrusted")?;
 
     for (name, value) in props {
         node.setprop(name, value)?;
@@ -982,9 +977,9 @@
 }
 
 fn patch_vcpufreq(fdt: &mut Fdt, vcpufreq_info: &Option<VcpufreqInfo>) -> libfdt::Result<()> {
-    let mut node = fdt.node_mut(cstr!("/cpufreq"))?.unwrap();
+    let mut node = fdt.node_mut(c"/cpufreq")?.unwrap();
     if let Some(info) = vcpufreq_info {
-        node.setprop_addrrange_inplace(cstr!("reg"), info.addr, info.size)
+        node.setprop_addrrange_inplace(c"reg", info.addr, info.size)
     } else {
         node.nop()
     }
@@ -1304,9 +1299,9 @@
     patch_dice_node(fdt, bcc.as_ptr() as usize, bcc.len())?;
 
     if let Some(mut chosen) = fdt.chosen_mut()? {
-        empty_or_delete_prop(&mut chosen, cstr!("avf,strict-boot"), strict_boot)?;
-        empty_or_delete_prop(&mut chosen, cstr!("avf,new-instance"), new_instance)?;
-        chosen.setprop_inplace(cstr!("kaslr-seed"), &kaslr_seed.to_be_bytes())?;
+        empty_or_delete_prop(&mut chosen, c"avf,strict-boot", strict_boot)?;
+        empty_or_delete_prop(&mut chosen, c"avf,new-instance", new_instance)?;
+        chosen.setprop_inplace(c"kaslr-seed", &kaslr_seed.to_be_bytes())?;
     };
     if !debuggable {
         if let Some(bootargs) = read_bootargs_from(fdt)? {
@@ -1323,13 +1318,13 @@
 fn patch_dice_node(fdt: &mut Fdt, addr: usize, size: usize) -> libfdt::Result<()> {
     // We reject DTs with missing reserved-memory node as validation should have checked that the
     // "swiotlb" subnode (compatible = "restricted-dma-pool") was present.
-    let node = fdt.node_mut(cstr!("/reserved-memory"))?.ok_or(libfdt::FdtError::NotFound)?;
+    let node = fdt.node_mut(c"/reserved-memory")?.ok_or(libfdt::FdtError::NotFound)?;
 
-    let mut node = node.next_compatible(cstr!("google,open-dice"))?.ok_or(FdtError::NotFound)?;
+    let mut node = node.next_compatible(c"google,open-dice")?.ok_or(FdtError::NotFound)?;
 
     let addr: u64 = addr.try_into().unwrap();
     let size: u64 = size.try_into().unwrap();
-    node.setprop_inplace(cstr!("reg"), [addr.to_be_bytes(), size.to_be_bytes()].as_flattened())
+    node.setprop_inplace(c"reg", [addr.to_be_bytes(), size.to_be_bytes()].as_flattened())
 }
 
 fn empty_or_delete_prop(
@@ -1376,7 +1371,7 @@
 }
 
 fn has_common_debug_policy(fdt: &Fdt, debug_feature_name: &CStr) -> libfdt::Result<bool> {
-    if let Some(node) = fdt.node(cstr!("/avf/guest/common"))? {
+    if let Some(node) = fdt.node(c"/avf/guest/common")? {
         if let Some(value) = node.getprop_u32(debug_feature_name)? {
             return Ok(value == 1);
         }
@@ -1385,8 +1380,8 @@
 }
 
 fn filter_out_dangerous_bootargs(fdt: &mut Fdt, bootargs: &CStr) -> libfdt::Result<()> {
-    let has_crashkernel = has_common_debug_policy(fdt, cstr!("ramdump"))?;
-    let has_console = has_common_debug_policy(fdt, cstr!("log"))?;
+    let has_crashkernel = has_common_debug_policy(fdt, c"ramdump")?;
+    let has_console = has_common_debug_policy(fdt, c"log")?;
 
     let accepted: &[(&str, Box<dyn Fn(Option<&str>) -> bool>)] = &[
         ("panic", Box::new(|v| if let Some(v) = v { v == "=-1" } else { false })),
@@ -1417,5 +1412,5 @@
     new_bootargs.push(b'\0');
 
     let mut node = fdt.chosen_mut()?.ok_or(FdtError::NotFound)?;
-    node.setprop(cstr!("bootargs"), new_bootargs.as_slice())
+    node.setprop(c"bootargs", new_bootargs.as_slice())
 }
diff --git a/guest/pvmfw/src/main.rs b/guest/pvmfw/src/main.rs
index a28a039..5ff9c4c 100644
--- a/guest/pvmfw/src/main.rs
+++ b/guest/pvmfw/src/main.rs
@@ -40,7 +40,6 @@
 use alloc::borrow::Cow;
 use alloc::boxed::Box;
 use bssl_avf::Digester;
-use cstr::cstr;
 use diced_open_dice::{bcc_handover_parse, DiceArtifacts, DiceContext, Hidden, VM_KEY_ALGORITHM};
 use libfdt::{Fdt, FdtNode};
 use log::{debug, error, info, trace, warn};
@@ -220,7 +219,7 @@
 
 fn instance_id(fdt: &Fdt) -> Result<&[u8], RebootReason> {
     let node = avf_untrusted_node(fdt)?;
-    let id = node.getprop(cstr!("instance-id")).map_err(|e| {
+    let id = node.getprop(c"instance-id").map_err(|e| {
         error!("Failed to get instance-id in DT: {e}");
         RebootReason::InvalidFdt
     })?;
@@ -231,7 +230,7 @@
 }
 
 fn avf_untrusted_node(fdt: &Fdt) -> Result<FdtNode, RebootReason> {
-    let node = fdt.node(cstr!("/avf/untrusted")).map_err(|e| {
+    let node = fdt.node(c"/avf/untrusted").map_err(|e| {
         error!("Failed to get /avf/untrusted node: {e}");
         RebootReason::InvalidFdt
     })?;
diff --git a/guest/pvmfw/src/rollback.rs b/guest/pvmfw/src/rollback.rs
index bc16332..15d22b3 100644
--- a/guest/pvmfw/src/rollback.rs
+++ b/guest/pvmfw/src/rollback.rs
@@ -19,7 +19,6 @@
 use crate::instance::EntryBody;
 use crate::instance::Error as InstanceError;
 use crate::instance::{get_recorded_entry, record_instance_entry};
-use cstr::cstr;
 use diced_open_dice::Hidden;
 use libfdt::{Fdt, FdtNode};
 use log::{error, info};
@@ -138,7 +137,7 @@
 fn should_defer_rollback_protection(fdt: &Fdt) -> Result<bool, RebootReason> {
     let node = avf_untrusted_node(fdt)?;
     let defer_rbp = node
-        .getprop(cstr!("defer-rollback-protection"))
+        .getprop(c"defer-rollback-protection")
         .map_err(|e| {
             error!("Failed to get defer-rollback-protection property in DT: {e}");
             RebootReason::InvalidFdt
@@ -148,7 +147,7 @@
 }
 
 fn avf_untrusted_node(fdt: &Fdt) -> Result<FdtNode, RebootReason> {
-    let node = fdt.node(cstr!("/avf/untrusted")).map_err(|e| {
+    let node = fdt.node(c"/avf/untrusted").map_err(|e| {
         error!("Failed to get /avf/untrusted node: {e}");
         RebootReason::InvalidFdt
     })?;
diff --git a/guest/rialto/Android.bp b/guest/rialto/Android.bp
index a525168..35ede7a 100644
--- a/guest/rialto/Android.bp
+++ b/guest/rialto/Android.bp
@@ -12,7 +12,6 @@
         "libbssl_avf_nostd",
         "libciborium_io_nostd",
         "libciborium_nostd",
-        "libcstr",
         "libdiced_open_dice_nostd",
         "libhypervisor_backends",
         "liblibfdt_nostd",
diff --git a/guest/rialto/src/fdt.rs b/guest/rialto/src/fdt.rs
index e97a262..06879d0 100644
--- a/guest/rialto/src/fdt.rs
+++ b/guest/rialto/src/fdt.rs
@@ -15,24 +15,23 @@
 //! High-level FDT functions.
 
 use core::ops::Range;
-use cstr::cstr;
 use libfdt::{Fdt, FdtError};
 
 /// Reads the DICE data range from the given `fdt`.
 pub fn read_dice_range_from(fdt: &Fdt) -> libfdt::Result<Range<usize>> {
-    let node = fdt.node(cstr!("/reserved-memory"))?.ok_or(FdtError::NotFound)?;
-    let node = node.next_compatible(cstr!("google,open-dice"))?.ok_or(FdtError::NotFound)?;
+    let node = fdt.node(c"/reserved-memory")?.ok_or(FdtError::NotFound)?;
+    let node = node.next_compatible(c"google,open-dice")?.ok_or(FdtError::NotFound)?;
     node.first_reg()?.try_into()
 }
 
 pub(crate) fn read_vendor_hashtree_root_digest(fdt: &Fdt) -> libfdt::Result<Option<&[u8]>> {
-    let node = fdt.node(cstr!("/avf"))?.ok_or(FdtError::NotFound)?;
-    node.getprop(cstr!("vendor_hashtree_descriptor_root_digest"))
+    let node = fdt.node(c"/avf")?.ok_or(FdtError::NotFound)?;
+    node.getprop(c"vendor_hashtree_descriptor_root_digest")
 }
 
 pub(crate) fn read_is_strict_boot(fdt: &Fdt) -> libfdt::Result<bool> {
     match fdt.chosen()? {
-        Some(node) => Ok(node.getprop(cstr!("avf,strict-boot"))?.is_some()),
+        Some(node) => Ok(node.getprop(c"avf,strict-boot")?.is_some()),
         None => Ok(false),
     }
 }
diff --git a/guest/vmbase_example/Android.bp b/guest/vmbase_example/Android.bp
index 09bd77c..ab21191 100644
--- a/guest/vmbase_example/Android.bp
+++ b/guest/vmbase_example/Android.bp
@@ -9,7 +9,6 @@
     srcs: ["src/main.rs"],
     rustlibs: [
         "libaarch64_paging",
-        "libcstr",
         "libdiced_open_dice_nostd",
         "liblibfdt_nostd",
         "liblog_rust_nostd",
diff --git a/guest/vmbase_example/src/main.rs b/guest/vmbase_example/src/main.rs
index 4c5e880..f5b41bd 100644
--- a/guest/vmbase_example/src/main.rs
+++ b/guest/vmbase_example/src/main.rs
@@ -27,7 +27,6 @@
 use crate::pci::check_pci;
 use alloc::{vec, vec::Vec};
 use core::ptr::addr_of_mut;
-use cstr::cstr;
 use libfdt::Fdt;
 use log::{debug, error, info, trace, warn, LevelFilter};
 use vmbase::{
@@ -147,7 +146,7 @@
         info!("memory @ {reg:#x?}");
     }
 
-    let compatible = cstr!("ns16550a");
+    let compatible = c"ns16550a";
 
     for c in reader.compatible_nodes(compatible).unwrap() {
         let reg = c.reg().unwrap().unwrap().next().unwrap();
@@ -159,17 +158,17 @@
     writer.unpack().unwrap();
     info!("FDT successfully unpacked.");
 
-    let path = cstr!("/memory");
+    let path = c"/memory";
     let node = writer.node_mut(path).unwrap().unwrap();
-    let name = cstr!("child");
+    let name = c"child";
     let mut child = node.add_subnode(name).unwrap();
     info!("Created subnode '{}/{}'.", path.to_str().unwrap(), name.to_str().unwrap());
 
-    let name = cstr!("str-property");
+    let name = c"str-property";
     child.appendprop(name, b"property-value\0").unwrap();
     info!("Appended property '{}'.", name.to_str().unwrap());
 
-    let name = cstr!("pair-property");
+    let name = c"pair-property";
     let addr = 0x0123_4567u64;
     let size = 0x89ab_cdefu64;
     child.appendprop_addrrange(name, addr, size).unwrap();
diff --git a/libs/libfdt/Android.bp b/libs/libfdt/Android.bp
index 09f288d..829b30f 100644
--- a/libs/libfdt/Android.bp
+++ b/libs/libfdt/Android.bp
@@ -35,7 +35,6 @@
     ],
     edition: "2021",
     rustlibs: [
-        "libcstr",
         "liblibfdt_bindgen",
         "libstatic_assertions",
         "libzerocopy_nostd",
@@ -79,7 +78,6 @@
     ],
     prefer_rlib: true,
     rustlibs: [
-        "libcstr",
         "liblibfdt",
     ],
 }
diff --git a/libs/libfdt/src/lib.rs b/libs/libfdt/src/lib.rs
index c969749..0dcd31a 100644
--- a/libs/libfdt/src/lib.rs
+++ b/libs/libfdt/src/lib.rs
@@ -31,7 +31,6 @@
 
 use core::ffi::{c_void, CStr};
 use core::ops::Range;
-use cstr::cstr;
 use libfdt::get_slice_at_ptr;
 use zerocopy::IntoBytes as _;
 
@@ -167,12 +166,12 @@
 
     /// Returns the standard (deprecated) device_type <string> property.
     pub fn device_type(&self) -> Result<Option<&CStr>> {
-        self.getprop_str(cstr!("device_type"))
+        self.getprop_str(c"device_type")
     }
 
     /// Returns the standard reg <prop-encoded-array> property.
     pub fn reg(&self) -> Result<Option<RegIterator<'a>>> {
-        if let Some(cells) = self.getprop_cells(cstr!("reg"))? {
+        if let Some(cells) = self.getprop_cells(c"reg")? {
             let parent = self.parent()?;
 
             let addr_cells = parent.address_cells()?;
@@ -186,7 +185,7 @@
 
     /// Returns the standard ranges property.
     pub fn ranges<A, P, S>(&self) -> Result<Option<RangesIterator<'a, A, P, S>>> {
-        if let Some(cells) = self.getprop_cells(cstr!("ranges"))? {
+        if let Some(cells) = self.getprop_cells(c"ranges")? {
             let parent = self.parent()?;
             let addr_cells = self.address_cells()?;
             let parent_addr_cells = parent.address_cells()?;
@@ -320,9 +319,9 @@
     /// Returns the phandle
     pub fn get_phandle(&self) -> Result<Option<Phandle>> {
         // This rewrites the fdt_get_phandle() because it doesn't return error code.
-        if let Some(prop) = self.getprop_u32(cstr!("phandle"))? {
+        if let Some(prop) = self.getprop_u32(c"phandle")? {
             Ok(Some(prop.try_into()?))
-        } else if let Some(prop) = self.getprop_u32(cstr!("linux,phandle"))? {
+        } else if let Some(prop) = self.getprop_u32(c"linux,phandle")? {
             Ok(Some(prop.try_into()?))
         } else {
             Ok(None)
@@ -693,8 +692,8 @@
     ///
     /// NOTE: This does not support individual "/memory@XXXX" banks.
     pub fn memory(&self) -> Result<MemRegIterator> {
-        let node = self.root().subnode(cstr!("memory"))?.ok_or(FdtError::NotFound)?;
-        if node.device_type()? != Some(cstr!("memory")) {
+        let node = self.root().subnode(c"memory")?.ok_or(FdtError::NotFound)?;
+        if node.device_type()? != Some(c"memory") {
             return Err(FdtError::BadValue);
         }
         node.reg()?.ok_or(FdtError::BadValue).map(MemRegIterator::new)
@@ -707,12 +706,12 @@
 
     /// Returns the standard /chosen node.
     pub fn chosen(&self) -> Result<Option<FdtNode>> {
-        self.root().subnode(cstr!("chosen"))
+        self.root().subnode(c"chosen")
     }
 
     /// Returns the standard /chosen node as mutable.
     pub fn chosen_mut(&mut self) -> Result<Option<FdtNodeMut>> {
-        self.node_mut(cstr!("/chosen"))
+        self.node_mut(c"/chosen")
     }
 
     /// Returns the root node of the tree.
@@ -722,12 +721,12 @@
 
     /// Returns the standard /__symbols__ node.
     pub fn symbols(&self) -> Result<Option<FdtNode>> {
-        self.root().subnode(cstr!("__symbols__"))
+        self.root().subnode(c"__symbols__")
     }
 
     /// Returns the standard /__symbols__ node as mutable
     pub fn symbols_mut(&mut self) -> Result<Option<FdtNodeMut>> {
-        self.node_mut(cstr!("/__symbols__"))
+        self.node_mut(c"/__symbols__")
     }
 
     /// Returns a tree node by its full path.
diff --git a/libs/libfdt/tests/api_test.rs b/libs/libfdt/tests/api_test.rs
index f521a00..e027164 100644
--- a/libs/libfdt/tests/api_test.rs
+++ b/libs/libfdt/tests/api_test.rs
@@ -17,7 +17,6 @@
 //! Integration tests of the library libfdt.
 
 use core::ffi::CStr;
-use cstr::cstr;
 use libfdt::{Fdt, FdtError, FdtNodeMut, Phandle};
 use std::collections::HashSet;
 use std::ffi::CString;
@@ -82,14 +81,14 @@
     let fdt = Fdt::from_slice(&data).unwrap();
 
     let root = fdt.root();
-    assert_eq!(root.name(), Ok(cstr!("")));
+    assert_eq!(root.name(), Ok(c""));
 
     let chosen = fdt.chosen().unwrap().unwrap();
-    assert_eq!(chosen.name(), Ok(cstr!("chosen")));
+    assert_eq!(chosen.name(), Ok(c"chosen"));
 
-    let nested_node_path = cstr!("/cpus/PowerPC,970@0");
+    let nested_node_path = c"/cpus/PowerPC,970@0";
     let nested_node = fdt.node(nested_node_path).unwrap().unwrap();
-    assert_eq!(nested_node.name(), Ok(cstr!("PowerPC,970@0")));
+    assert_eq!(nested_node.name(), Ok(c"PowerPC,970@0"));
 }
 
 #[test]
@@ -97,7 +96,7 @@
     let data = fs::read(TEST_TREE_WITH_NO_MEMORY_NODE_PATH).unwrap();
     let fdt = Fdt::from_slice(&data).unwrap();
     let root = fdt.root();
-    let expected = [Ok(cstr!("cpus")), Ok(cstr!("randomnode")), Ok(cstr!("chosen"))];
+    let expected = [Ok(c"cpus"), Ok(c"randomnode"), Ok(c"chosen")];
 
     let root_subnodes = root.subnodes().unwrap();
     let subnode_names: Vec<_> = root_subnodes.map(|node| node.name()).collect();
@@ -112,11 +111,11 @@
     let one_be = 0x1_u32.to_be_bytes();
     type Result<T> = core::result::Result<T, FdtError>;
     let expected: Vec<(Result<&CStr>, Result<&[u8]>)> = vec![
-        (Ok(cstr!("model")), Ok(b"MyBoardName\0".as_ref())),
-        (Ok(cstr!("compatible")), Ok(b"MyBoardName\0MyBoardFamilyName\0".as_ref())),
-        (Ok(cstr!("#address-cells")), Ok(&one_be)),
-        (Ok(cstr!("#size-cells")), Ok(&one_be)),
-        (Ok(cstr!("empty_prop")), Ok(&[])),
+        (Ok(c"model"), Ok(b"MyBoardName\0".as_ref())),
+        (Ok(c"compatible"), Ok(b"MyBoardName\0MyBoardFamilyName\0".as_ref())),
+        (Ok(c"#address-cells"), Ok(&one_be)),
+        (Ok(c"#size-cells"), Ok(&one_be)),
+        (Ok(c"empty_prop"), Ok(&[])),
     ];
 
     let properties = root.properties().unwrap();
@@ -129,8 +128,8 @@
 fn node_supernode_at_depth() {
     let data = fs::read(TEST_TREE_WITH_NO_MEMORY_NODE_PATH).unwrap();
     let fdt = Fdt::from_slice(&data).unwrap();
-    let node = fdt.node(cstr!("/cpus/PowerPC,970@1")).unwrap().unwrap();
-    let expected = vec![Ok(cstr!("")), Ok(cstr!("cpus")), Ok(cstr!("PowerPC,970@1"))];
+    let node = fdt.node(c"/cpus/PowerPC,970@1").unwrap().unwrap();
+    let expected = vec![Ok(c""), Ok(c"cpus"), Ok(c"PowerPC,970@1")];
 
     let mut supernode_names = vec![];
     let mut depth = 0;
@@ -187,12 +186,12 @@
     // Test linux,phandle
     let phandle = Phandle::new(0xFF).unwrap();
     let node = fdt.node_with_phandle(phandle).unwrap().unwrap();
-    assert_eq!(node.name(), Ok(cstr!("node_zz")));
+    assert_eq!(node.name(), Ok(c"node_zz"));
 
     // Test phandle
     let phandle = Phandle::new(0x22).unwrap();
     let node = fdt.node_with_phandle(phandle).unwrap().unwrap();
-    assert_eq!(node.name(), Ok(cstr!("node_abc")));
+    assert_eq!(node.name(), Ok(c"node_abc"));
 }
 
 #[test]
@@ -203,12 +202,12 @@
     // Test linux,phandle
     let phandle = Phandle::new(0xFF).unwrap();
     let node: FdtNodeMut = fdt.node_mut_with_phandle(phandle).unwrap().unwrap();
-    assert_eq!(node.as_node().name(), Ok(cstr!("node_zz")));
+    assert_eq!(node.as_node().name(), Ok(c"node_zz"));
 
     // Test phandle
     let phandle = Phandle::new(0x22).unwrap();
     let node: FdtNodeMut = fdt.node_mut_with_phandle(phandle).unwrap().unwrap();
-    assert_eq!(node.as_node().name(), Ok(cstr!("node_abc")));
+    assert_eq!(node.as_node().name(), Ok(c"node_abc"));
 }
 
 #[test]
@@ -217,15 +216,15 @@
     let fdt = Fdt::from_slice(&data).unwrap();
 
     // Test linux,phandle
-    let node = fdt.node(cstr!("/node_z/node_zz")).unwrap().unwrap();
+    let node = fdt.node(c"/node_z/node_zz").unwrap().unwrap();
     assert_eq!(node.get_phandle(), Ok(Phandle::new(0xFF)));
 
     // Test phandle
-    let node = fdt.node(cstr!("/node_a/node_ab/node_abc")).unwrap().unwrap();
+    let node = fdt.node(c"/node_a/node_ab/node_abc").unwrap().unwrap();
     assert_eq!(node.get_phandle(), Ok(Phandle::new(0x22)));
 
     // Test no phandle
-    let node = fdt.node(cstr!("/node_b")).unwrap().unwrap();
+    let node = fdt.node(c"/node_b").unwrap().unwrap();
     assert_eq!(node.get_phandle(), Ok(None));
 }
 
@@ -234,7 +233,7 @@
     let mut data = fs::read(TEST_TREE_PHANDLE_PATH).unwrap();
     let fdt = Fdt::from_mut_slice(&mut data).unwrap();
     let phandle = Phandle::new(0xFF).unwrap();
-    let path = cstr!("/node_z/node_zz");
+    let path = c"/node_z/node_zz";
 
     fdt.node_with_phandle(phandle).unwrap().unwrap();
     let node = fdt.node_mut(path).unwrap().unwrap();
@@ -259,8 +258,8 @@
     let fdt = Fdt::from_mut_slice(&mut data).unwrap();
     fdt.unpack().unwrap();
 
-    let node_path = cstr!("/node_z/node_zz");
-    let subnode_name = cstr!("123456789");
+    let node_path = c"/node_z/node_zz";
+    let subnode_name = c"123456789";
 
     for len in 0..subnode_name.to_bytes().len() {
         let name = &subnode_name.to_bytes()[0..len];
@@ -289,7 +288,7 @@
     let data = fs::read(TEST_TREE_PHANDLE_PATH).unwrap();
     let fdt = Fdt::from_slice(&data).unwrap();
 
-    let name = cstr!("node_a");
+    let name = c"node_a";
     let root = fdt.root();
     let node = root.subnode(name).unwrap();
     assert_ne!(None, node);
@@ -309,7 +308,7 @@
     assert_ne!(None, node);
     let node = node.unwrap();
 
-    assert_eq!(Ok(cstr!("node_a")), node.name());
+    assert_eq!(Ok(c"node_a"), node.name());
 }
 
 #[test]
@@ -317,7 +316,7 @@
     let data = fs::read(TEST_TREE_PHANDLE_PATH).unwrap();
     let fdt = Fdt::from_slice(&data).unwrap();
 
-    let name = cstr!("node_a");
+    let name = c"node_a";
     let node = {
         let root = fdt.root();
         root.subnode(name).unwrap().unwrap()
@@ -332,7 +331,7 @@
     let fdt = Fdt::from_mut_slice(&mut data).unwrap();
 
     let symbols = fdt.symbols().unwrap().unwrap();
-    assert_eq!(symbols.name(), Ok(cstr!("__symbols__")));
+    assert_eq!(symbols.name(), Ok(c"__symbols__"));
 
     // Validates type.
     let _symbols: FdtNodeMut = fdt.symbols_mut().unwrap().unwrap();
@@ -343,14 +342,14 @@
     let mut data = fs::read(TEST_TREE_WITH_ONE_MEMORY_RANGE_PATH).unwrap();
     let fdt = Fdt::from_mut_slice(&mut data).unwrap();
 
-    let mut memory = fdt.node_mut(cstr!("/memory")).unwrap().unwrap();
+    let mut memory = fdt.node_mut(c"/memory").unwrap().unwrap();
     {
         let memory = memory.as_node();
-        assert_eq!(memory.name(), Ok(cstr!("memory")));
+        assert_eq!(memory.name(), Ok(c"memory"));
     }
 
     // Just check whether borrow checker doesn't complain this.
-    memory.setprop_inplace(cstr!("device_type"), b"MEMORY\0").unwrap();
+    memory.setprop_inplace(c"device_type", b"MEMORY\0").unwrap();
 }
 
 #[test]
@@ -358,18 +357,13 @@
     let mut data = fs::read(TEST_TREE_PHANDLE_PATH).unwrap();
     let fdt = Fdt::from_mut_slice(&mut data).unwrap();
 
-    let node_z = fdt.node(cstr!("/node_z")).unwrap().unwrap();
+    let node_z = fdt.node(c"/node_z").unwrap().unwrap();
     let descendants: Vec<_> =
         node_z.descendants().map(|(node, depth)| (node.name().unwrap(), depth)).collect();
 
     assert_eq!(
         descendants,
-        vec![
-            (cstr!("node_za"), 1),
-            (cstr!("node_zb"), 1),
-            (cstr!("node_zz"), 1),
-            (cstr!("node_zzz"), 2)
-        ]
+        vec![(c"node_za", 1), (c"node_zb", 1), (c"node_zz", 1), (c"node_zzz", 2)]
     );
 }
 
@@ -382,7 +376,7 @@
     let mut subnode_iter = root.first_subnode().unwrap();
 
     while let Some(subnode) = subnode_iter {
-        if subnode.as_node().name() == Ok(cstr!("node_z")) {
+        if subnode.as_node().name() == Ok(c"node_z") {
             subnode_iter = subnode.delete_and_next_subnode().unwrap();
         } else {
             subnode_iter = subnode.next_subnode().unwrap();
@@ -390,12 +384,7 @@
     }
 
     let root = fdt.root();
-    let expected_names = vec![
-        Ok(cstr!("node_a")),
-        Ok(cstr!("node_b")),
-        Ok(cstr!("node_c")),
-        Ok(cstr!("__symbols__")),
-    ];
+    let expected_names = vec![Ok(c"node_a"), Ok(c"node_b"), Ok(c"node_c"), Ok(c"__symbols__")];
     let subnode_names: Vec<_> = root.subnodes().unwrap().map(|node| node.name()).collect();
 
     assert_eq!(expected_names, subnode_names);
@@ -407,19 +396,19 @@
     let fdt = Fdt::from_mut_slice(&mut data).unwrap();
 
     let expected_nodes = vec![
-        (Ok(cstr!("node_b")), 1),
-        (Ok(cstr!("node_c")), 1),
-        (Ok(cstr!("node_z")), 1),
-        (Ok(cstr!("node_za")), 2),
-        (Ok(cstr!("node_zb")), 2),
-        (Ok(cstr!("__symbols__")), 1),
+        (Ok(c"node_b"), 1),
+        (Ok(c"node_c"), 1),
+        (Ok(c"node_z"), 1),
+        (Ok(c"node_za"), 2),
+        (Ok(c"node_zb"), 2),
+        (Ok(c"__symbols__"), 1),
     ];
 
     let mut expected_nodes_iter = expected_nodes.iter();
     let mut iter = fdt.root_mut().next_node(0).unwrap();
     while let Some((node, depth)) = iter {
         let node_name = node.as_node().name();
-        if node_name == Ok(cstr!("node_a")) || node_name == Ok(cstr!("node_zz")) {
+        if node_name == Ok(c"node_a") || node_name == Ok(c"node_zz") {
             iter = node.delete_and_next_node(depth).unwrap();
         } else {
             // Note: Checking name here is easier than collecting names and assert_eq!(),
@@ -464,7 +453,7 @@
         root.name()
         // Make root to be dropped
     };
-    assert_eq!(Ok(cstr!("")), name);
+    assert_eq!(Ok(c""), name);
 }
 
 #[test]
@@ -473,7 +462,7 @@
     let fdt = Fdt::create_empty_tree(&mut data).unwrap();
 
     let root = fdt.root_mut();
-    let names = [cstr!("a"), cstr!("b")];
+    let names = [c"a", c"b"];
     root.add_subnodes(&names).unwrap();
 
     let expected: HashSet<_> = names.into_iter().collect();
@@ -492,14 +481,14 @@
     let name = {
         let node_a = {
             let root = fdt.root();
-            root.subnode(cstr!("node_a")).unwrap()
+            root.subnode(c"node_a").unwrap()
             // Make root to be dropped
         };
         assert_ne!(None, node_a);
         node_a.unwrap().name()
         // Make node_a to be dropped
     };
-    assert_eq!(Ok(cstr!("node_a")), name);
+    assert_eq!(Ok(c"node_a"), name);
 }
 
 #[test]
@@ -521,7 +510,7 @@
         first_subnode.name()
         // Make first_subnode to be dropped
     };
-    assert_eq!(Ok(cstr!("node_a")), first_subnode_name);
+    assert_eq!(Ok(c"node_a"), first_subnode_name);
 }
 
 #[test]
@@ -543,5 +532,5 @@
         first_descendant.name()
         // Make first_descendant to be dropped
     };
-    assert_eq!(Ok(cstr!("node_a")), first_descendant_name);
+    assert_eq!(Ok(c"node_a"), first_descendant_name);
 }
diff --git a/libs/libservice_vm_fake_chain/Android.bp b/libs/libservice_vm_fake_chain/Android.bp
index 56fb22a..65eddf8 100644
--- a/libs/libservice_vm_fake_chain/Android.bp
+++ b/libs/libservice_vm_fake_chain/Android.bp
@@ -26,9 +26,6 @@
         "//packages/modules/Virtualization/guest/rialto:__subpackages__",
     ],
     prefer_rlib: true,
-    rustlibs: [
-        "libcstr",
-    ],
 }
 
 rust_library {
diff --git a/libs/libservice_vm_fake_chain/src/client_vm.rs b/libs/libservice_vm_fake_chain/src/client_vm.rs
index dc499e0..fa72739 100644
--- a/libs/libservice_vm_fake_chain/src/client_vm.rs
+++ b/libs/libservice_vm_fake_chain/src/client_vm.rs
@@ -22,7 +22,6 @@
 use ciborium::{cbor, value::Value};
 use core::result;
 use coset::CborSerializable;
-use cstr::cstr;
 use diced_open_dice::{
     hash, retry_bcc_format_config_descriptor, retry_bcc_main_flow, Config, DiceArtifacts,
     DiceConfigValues, DiceError, DiceMode, InputValues, OwnedDiceArtifacts, Result, HASH_SIZE,
@@ -96,7 +95,7 @@
 
     // Adds an entry describing the Microdroid kernel.
     let config_values = DiceConfigValues {
-        component_name: Some(cstr!("vm_entry")),
+        component_name: Some(c"vm_entry"),
         component_version: Some(12),
         resettable: true,
         security_version: Some(13),
diff --git a/libs/libservice_vm_fake_chain/src/service_vm.rs b/libs/libservice_vm_fake_chain/src/service_vm.rs
index 04297e4..5064ff8 100644
--- a/libs/libservice_vm_fake_chain/src/service_vm.rs
+++ b/libs/libservice_vm_fake_chain/src/service_vm.rs
@@ -24,7 +24,6 @@
     iana::{self, EnumI64},
     Algorithm, AsCborValue, CborSerializable, CoseKey, KeyOperation, KeyType, Label,
 };
-use cstr::cstr;
 use diced_open_dice::{
     derive_cdi_private_key_seed, keypair_from_seed, retry_bcc_format_config_descriptor,
     retry_bcc_main_flow, retry_dice_main_flow, CdiValues, Config, DiceConfigValues, DiceError,
@@ -113,7 +112,7 @@
 
     // Gets the pvmfw certificate to as the root certificate of DICE chain.
     let config_values = DiceConfigValues {
-        component_name: Some(cstr!("Protected VM firmware")),
+        component_name: Some(c"Protected VM firmware"),
         component_version: Some(1),
         resettable: true,
         rkp_vm_marker: true,
@@ -156,7 +155,7 @@
 pub fn fake_service_vm_dice_artifacts() -> Result<OwnedDiceArtifacts> {
     let (cdi_values, dice_chain) = fake_dice_artifacts_up_to_pvmfw()?;
     let config_values = DiceConfigValues {
-        component_name: Some(cstr!("vm_entry")),
+        component_name: Some(c"vm_entry"),
         component_version: Some(12),
         resettable: true,
         rkp_vm_marker: true,
diff --git a/libs/libvmbase/Android.bp b/libs/libvmbase/Android.bp
index 3088633..de347c7 100644
--- a/libs/libvmbase/Android.bp
+++ b/libs/libvmbase/Android.bp
@@ -80,7 +80,6 @@
         "libaarch64_paging",
         "libbuddy_system_allocator",
         "libcfg_if",
-        "libcstr",
         "libhypervisor_backends",
         "liblibfdt_nostd",
         "liblog_rust_nostd",
diff --git a/libs/libvmbase/src/bionic.rs b/libs/libvmbase/src/bionic.rs
index 3c0cd6f..37b6e45 100644
--- a/libs/libvmbase/src/bionic.rs
+++ b/libs/libvmbase/src/bionic.rs
@@ -24,7 +24,6 @@
 use core::slice;
 use core::str;
 
-use cstr::cstr;
 use log::error;
 use log::info;
 
@@ -230,138 +229,138 @@
 fn cstr_error(n: c_int) -> &'static CStr {
     // Messages taken from errno(1).
     match n {
-        0 => cstr!("Success"),
-        1 => cstr!("Operation not permitted"),
-        2 => cstr!("No such file or directory"),
-        3 => cstr!("No such process"),
-        4 => cstr!("Interrupted system call"),
-        5 => cstr!("Input/output error"),
-        6 => cstr!("No such device or address"),
-        7 => cstr!("Argument list too long"),
-        8 => cstr!("Exec format error"),
-        9 => cstr!("Bad file descriptor"),
-        10 => cstr!("No child processes"),
-        11 => cstr!("Resource temporarily unavailable"),
-        12 => cstr!("Cannot allocate memory"),
-        13 => cstr!("Permission denied"),
-        14 => cstr!("Bad address"),
-        15 => cstr!("Block device required"),
-        16 => cstr!("Device or resource busy"),
-        17 => cstr!("File exists"),
-        18 => cstr!("Invalid cross-device link"),
-        19 => cstr!("No such device"),
-        20 => cstr!("Not a directory"),
-        21 => cstr!("Is a directory"),
-        22 => cstr!("Invalid argument"),
-        23 => cstr!("Too many open files in system"),
-        24 => cstr!("Too many open files"),
-        25 => cstr!("Inappropriate ioctl for device"),
-        26 => cstr!("Text file busy"),
-        27 => cstr!("File too large"),
-        28 => cstr!("No space left on device"),
-        29 => cstr!("Illegal seek"),
-        30 => cstr!("Read-only file system"),
-        31 => cstr!("Too many links"),
-        32 => cstr!("Broken pipe"),
-        33 => cstr!("Numerical argument out of domain"),
-        34 => cstr!("Numerical result out of range"),
-        35 => cstr!("Resource deadlock avoided"),
-        36 => cstr!("File name too long"),
-        37 => cstr!("No locks available"),
-        38 => cstr!("Function not implemented"),
-        39 => cstr!("Directory not empty"),
-        40 => cstr!("Too many levels of symbolic links"),
-        42 => cstr!("No message of desired type"),
-        43 => cstr!("Identifier removed"),
-        44 => cstr!("Channel number out of range"),
-        45 => cstr!("Level 2 not synchronized"),
-        46 => cstr!("Level 3 halted"),
-        47 => cstr!("Level 3 reset"),
-        48 => cstr!("Link number out of range"),
-        49 => cstr!("Protocol driver not attached"),
-        50 => cstr!("No CSI structure available"),
-        51 => cstr!("Level 2 halted"),
-        52 => cstr!("Invalid exchange"),
-        53 => cstr!("Invalid request descriptor"),
-        54 => cstr!("Exchange full"),
-        55 => cstr!("No anode"),
-        56 => cstr!("Invalid request code"),
-        57 => cstr!("Invalid slot"),
-        59 => cstr!("Bad font file format"),
-        60 => cstr!("Device not a stream"),
-        61 => cstr!("No data available"),
-        62 => cstr!("Timer expired"),
-        63 => cstr!("Out of streams resources"),
-        64 => cstr!("Machine is not on the network"),
-        65 => cstr!("Package not installed"),
-        66 => cstr!("Object is remote"),
-        67 => cstr!("Link has been severed"),
-        68 => cstr!("Advertise error"),
-        69 => cstr!("Srmount error"),
-        70 => cstr!("Communication error on send"),
-        71 => cstr!("Protocol error"),
-        72 => cstr!("Multihop attempted"),
-        73 => cstr!("RFS specific error"),
-        74 => cstr!("Bad message"),
-        75 => cstr!("Value too large for defined data type"),
-        76 => cstr!("Name not unique on network"),
-        77 => cstr!("File descriptor in bad state"),
-        78 => cstr!("Remote address changed"),
-        79 => cstr!("Can not access a needed shared library"),
-        80 => cstr!("Accessing a corrupted shared library"),
-        81 => cstr!(".lib section in a.out corrupted"),
-        82 => cstr!("Attempting to link in too many shared libraries"),
-        83 => cstr!("Cannot exec a shared library directly"),
-        84 => cstr!("Invalid or incomplete multibyte or wide character"),
-        85 => cstr!("Interrupted system call should be restarted"),
-        86 => cstr!("Streams pipe error"),
-        87 => cstr!("Too many users"),
-        88 => cstr!("Socket operation on non-socket"),
-        89 => cstr!("Destination address required"),
-        90 => cstr!("Message too long"),
-        91 => cstr!("Protocol wrong type for socket"),
-        92 => cstr!("Protocol not available"),
-        93 => cstr!("Protocol not supported"),
-        94 => cstr!("Socket type not supported"),
-        95 => cstr!("Operation not supported"),
-        96 => cstr!("Protocol family not supported"),
-        97 => cstr!("Address family not supported by protocol"),
-        98 => cstr!("Address already in use"),
-        99 => cstr!("Cannot assign requested address"),
-        100 => cstr!("Network is down"),
-        101 => cstr!("Network is unreachable"),
-        102 => cstr!("Network dropped connection on reset"),
-        103 => cstr!("Software caused connection abort"),
-        104 => cstr!("Connection reset by peer"),
-        105 => cstr!("No buffer space available"),
-        106 => cstr!("Transport endpoint is already connected"),
-        107 => cstr!("Transport endpoint is not connected"),
-        108 => cstr!("Cannot send after transport endpoint shutdown"),
-        109 => cstr!("Too many references: cannot splice"),
-        110 => cstr!("Connection timed out"),
-        111 => cstr!("Connection refused"),
-        112 => cstr!("Host is down"),
-        113 => cstr!("No route to host"),
-        114 => cstr!("Operation already in progress"),
-        115 => cstr!("Operation now in progress"),
-        116 => cstr!("Stale file handle"),
-        117 => cstr!("Structure needs cleaning"),
-        118 => cstr!("Not a XENIX named type file"),
-        119 => cstr!("No XENIX semaphores available"),
-        120 => cstr!("Is a named type file"),
-        121 => cstr!("Remote I/O error"),
-        122 => cstr!("Disk quota exceeded"),
-        123 => cstr!("No medium found"),
-        124 => cstr!("Wrong medium type"),
-        125 => cstr!("Operation canceled"),
-        126 => cstr!("Required key not available"),
-        127 => cstr!("Key has expired"),
-        128 => cstr!("Key has been revoked"),
-        129 => cstr!("Key was rejected by service"),
-        130 => cstr!("Owner died"),
-        131 => cstr!("State not recoverable"),
-        132 => cstr!("Operation not possible due to RF-kill"),
-        133 => cstr!("Memory page has hardware error"),
-        _ => cstr!("Unknown errno value"),
+        0 => c"Success",
+        1 => c"Operation not permitted",
+        2 => c"No such file or directory",
+        3 => c"No such process",
+        4 => c"Interrupted system call",
+        5 => c"Input/output error",
+        6 => c"No such device or address",
+        7 => c"Argument list too long",
+        8 => c"Exec format error",
+        9 => c"Bad file descriptor",
+        10 => c"No child processes",
+        11 => c"Resource temporarily unavailable",
+        12 => c"Cannot allocate memory",
+        13 => c"Permission denied",
+        14 => c"Bad address",
+        15 => c"Block device required",
+        16 => c"Device or resource busy",
+        17 => c"File exists",
+        18 => c"Invalid cross-device link",
+        19 => c"No such device",
+        20 => c"Not a directory",
+        21 => c"Is a directory",
+        22 => c"Invalid argument",
+        23 => c"Too many open files in system",
+        24 => c"Too many open files",
+        25 => c"Inappropriate ioctl for device",
+        26 => c"Text file busy",
+        27 => c"File too large",
+        28 => c"No space left on device",
+        29 => c"Illegal seek",
+        30 => c"Read-only file system",
+        31 => c"Too many links",
+        32 => c"Broken pipe",
+        33 => c"Numerical argument out of domain",
+        34 => c"Numerical result out of range",
+        35 => c"Resource deadlock avoided",
+        36 => c"File name too long",
+        37 => c"No locks available",
+        38 => c"Function not implemented",
+        39 => c"Directory not empty",
+        40 => c"Too many levels of symbolic links",
+        42 => c"No message of desired type",
+        43 => c"Identifier removed",
+        44 => c"Channel number out of range",
+        45 => c"Level 2 not synchronized",
+        46 => c"Level 3 halted",
+        47 => c"Level 3 reset",
+        48 => c"Link number out of range",
+        49 => c"Protocol driver not attached",
+        50 => c"No CSI structure available",
+        51 => c"Level 2 halted",
+        52 => c"Invalid exchange",
+        53 => c"Invalid request descriptor",
+        54 => c"Exchange full",
+        55 => c"No anode",
+        56 => c"Invalid request code",
+        57 => c"Invalid slot",
+        59 => c"Bad font file format",
+        60 => c"Device not a stream",
+        61 => c"No data available",
+        62 => c"Timer expired",
+        63 => c"Out of streams resources",
+        64 => c"Machine is not on the network",
+        65 => c"Package not installed",
+        66 => c"Object is remote",
+        67 => c"Link has been severed",
+        68 => c"Advertise error",
+        69 => c"Srmount error",
+        70 => c"Communication error on send",
+        71 => c"Protocol error",
+        72 => c"Multihop attempted",
+        73 => c"RFS specific error",
+        74 => c"Bad message",
+        75 => c"Value too large for defined data type",
+        76 => c"Name not unique on network",
+        77 => c"File descriptor in bad state",
+        78 => c"Remote address changed",
+        79 => c"Can not access a needed shared library",
+        80 => c"Accessing a corrupted shared library",
+        81 => c".lib section in a.out corrupted",
+        82 => c"Attempting to link in too many shared libraries",
+        83 => c"Cannot exec a shared library directly",
+        84 => c"Invalid or incomplete multibyte or wide character",
+        85 => c"Interrupted system call should be restarted",
+        86 => c"Streams pipe error",
+        87 => c"Too many users",
+        88 => c"Socket operation on non-socket",
+        89 => c"Destination address required",
+        90 => c"Message too long",
+        91 => c"Protocol wrong type for socket",
+        92 => c"Protocol not available",
+        93 => c"Protocol not supported",
+        94 => c"Socket type not supported",
+        95 => c"Operation not supported",
+        96 => c"Protocol family not supported",
+        97 => c"Address family not supported by protocol",
+        98 => c"Address already in use",
+        99 => c"Cannot assign requested address",
+        100 => c"Network is down",
+        101 => c"Network is unreachable",
+        102 => c"Network dropped connection on reset",
+        103 => c"Software caused connection abort",
+        104 => c"Connection reset by peer",
+        105 => c"No buffer space available",
+        106 => c"Transport endpoint is already connected",
+        107 => c"Transport endpoint is not connected",
+        108 => c"Cannot send after transport endpoint shutdown",
+        109 => c"Too many references: cannot splice",
+        110 => c"Connection timed out",
+        111 => c"Connection refused",
+        112 => c"Host is down",
+        113 => c"No route to host",
+        114 => c"Operation already in progress",
+        115 => c"Operation now in progress",
+        116 => c"Stale file handle",
+        117 => c"Structure needs cleaning",
+        118 => c"Not a XENIX named type file",
+        119 => c"No XENIX semaphores available",
+        120 => c"Is a named type file",
+        121 => c"Remote I/O error",
+        122 => c"Disk quota exceeded",
+        123 => c"No medium found",
+        124 => c"Wrong medium type",
+        125 => c"Operation canceled",
+        126 => c"Required key not available",
+        127 => c"Key has expired",
+        128 => c"Key has been revoked",
+        129 => c"Key was rejected by service",
+        130 => c"Owner died",
+        131 => c"State not recoverable",
+        132 => c"Operation not possible due to RF-kill",
+        133 => c"Memory page has hardware error",
+        _ => c"Unknown errno value",
     }
 }
diff --git a/libs/libvmbase/src/fdt.rs b/libs/libvmbase/src/fdt.rs
index aaf354e..2113787 100644
--- a/libs/libvmbase/src/fdt.rs
+++ b/libs/libvmbase/src/fdt.rs
@@ -17,7 +17,6 @@
 pub mod pci;
 
 use core::ops::Range;
-use cstr::cstr;
 use libfdt::{self, Fdt, FdtError};
 
 /// Represents information about a SWIOTLB buffer.
@@ -34,7 +33,7 @@
 impl SwiotlbInfo {
     /// Creates a `SwiotlbInfo` struct from the given device tree.
     pub fn new_from_fdt(fdt: &Fdt) -> libfdt::Result<Option<SwiotlbInfo>> {
-        let Some(node) = fdt.compatible_nodes(cstr!("restricted-dma-pool"))?.next() else {
+        let Some(node) = fdt.compatible_nodes(c"restricted-dma-pool")?.next() else {
             return Ok(None);
         };
         let (addr, size, align) = if let Some(mut reg) = node.reg()? {
@@ -42,8 +41,8 @@
             let size = reg.size.ok_or(FdtError::BadValue)?;
             (Some(reg.addr.try_into().unwrap()), size.try_into().unwrap(), None)
         } else {
-            let size = node.getprop_u64(cstr!("size"))?.ok_or(FdtError::NotFound)?;
-            let align = node.getprop_u64(cstr!("alignment"))?.ok_or(FdtError::NotFound)?;
+            let size = node.getprop_u64(c"size")?.ok_or(FdtError::NotFound)?;
+            let align = node.getprop_u64(c"alignment")?.ok_or(FdtError::NotFound)?;
             (None, size.try_into().unwrap(), Some(align.try_into().unwrap()))
         };
         Ok(Some(Self { addr, size, align }))
diff --git a/tests/testapk/Android.bp b/tests/testapk/Android.bp
index cb374a5..8a95fe9 100644
--- a/tests/testapk/Android.bp
+++ b/tests/testapk/Android.bp
@@ -224,7 +224,6 @@
         "libandroid_logger",
         "libanyhow",
         "libavflog",
-        "libcstr",
         "liblog_rust",
         "libvm_payload_rs",
     ],
diff --git a/tests/testapk/src/native/testbinary.rs b/tests/testapk/src/native/testbinary.rs
index 2502113..a84b955 100644
--- a/tests/testapk/src/native/testbinary.rs
+++ b/tests/testapk/src/native/testbinary.rs
@@ -24,7 +24,6 @@
     },
     binder::{BinderFeatures, ExceptionCode, Interface, Result as BinderResult, Status, Strong},
 };
-use cstr::cstr;
 use log::{error, info};
 use std::process::exit;
 use std::string::String;
@@ -130,7 +129,7 @@
 }
 
 fn unimplemented<T>() -> BinderResult<T> {
-    let message = cstr!("Got a call to an unimplemented ITestService method in testbinary.rs");
+    let message = c"Got a call to an unimplemented ITestService method in testbinary.rs";
     error!("{message:?}");
     Err(Status::new_exception(ExceptionCode::UNSUPPORTED_OPERATION, Some(message)))
 }