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 }))